legacy/libisoburn/trunk/xorriso/xorrisoburn.c

/* Adapter to libisoburn, libisofs and libburn for xorriso,
   a command line oriented batch and dialog tool which creates, loads,
   manipulates and burns ISO 9660 filesystem images.

   Copyright 2007-2008 Thomas Schmitt, <scdbackup@gmx.net>

   Provided under GPL version 2.
*/

#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <fcntl.h>
#include <utime.h>



/* ------------------------------------------------------------------------ */

#ifndef Xorriso_standalonE

/* The library which does the ISO 9660 / RockRidge manipulations */
#include <libisofs/libisofs.h>

/* The library which does MMC optical drive operations */
#include <libburn/libburn.h>

/* The library which enhances overwriteable media with ISO 9660 multi-session
   capabilities via the method invented by Andy Polyakov for growisofs */
#include <libisoburn/libisoburn.h>

/* The official xorriso options API. "No shortcuts" */
#include "xorriso.h"

/* The inner description of XorrisO */
#include "xorriso_private.h"

/* The inner isofs- and burn-library interface */
#include "xorrisoburn.h"

#else /* ! Xorriso_standalonE */

#include "../libisofs/libisofs.h"
#include "../libburn/libburn.h"
#include "../libisoburn/libisoburn.h"
#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"

#endif /* Xorriso_standalonE */

/* Some private in advance declarations */
int  Xorriso_pacifier_loop(struct XorrisO *xorriso, struct burn_drive *drive,
                          int flag);

int Xorriso__read_pacifier(IsoImage *image, IsoFileSource *filesource);

int Xorriso_tree_graft_node(struct XorrisO *xorriso, IsoImage *volume,
                            IsoDir *dir, char *disk_path, char *img_name,
                            char *nominal_source, char *nominal_target,
                            off_t offset, off_t cut_size,
                            IsoNode **node, int flag);

int Xorriso_findi_iter(struct XorrisO *xorriso, IsoDir *dir_node, off_t *mem,
                       IsoDirIter **iter,
                       IsoNode ***node_array, int *node_count, int *node_idx,
                       IsoNode **iterated_node, int flag);


#define LIBISO_ISDIR(node) (iso_node_get_type(node) == LIBISO_DIR)
#define LIBISO_ISREG(node) (iso_node_get_type(node) == LIBISO_FILE)
#define LIBISO_ISLNK(node) (iso_node_get_type(node) == LIBISO_SYMLINK)
#define LIBISO_ISCHR(node) (iso_node_get_type(node) == LIBISO_SPECIAL && \
                            S_ISCHR(iso_node_get_mode(node)))
#define LIBISO_ISBLK(node) (iso_node_get_type(node) == LIBISO_SPECIAL && \
                            S_ISBLK(iso_node_get_mode(node)))
#define LIBISO_ISFIFO(node) (iso_node_get_type(node) == LIBISO_SPECIAL && \
                             S_ISFIFO(iso_node_get_mode(node)))
#define LIBISO_ISSOCK(node) (iso_node_get_type(node) == LIBISO_SPECIAL && \
                             S_ISSOCK(iso_node_get_mode(node)))

/* CD specs say one shall not write tracks < 600 kiB */
#define Xorriso_cd_min_track_sizE 300


/* ------------------------------------------------------------------------ */


int Xorriso_startup_libraries(struct XorrisO *xorriso, int flag)
{
 int ret, major, minor, micro;
 char *handler_prefix= NULL;
 char *queue_sev, *print_sev, reason[1024];


/* First an ugly compile time check for header version compatibility.
   If everthing matches, then no C code is produced. In case of mismatch,
   intentionally faulty C code will be inserted.
*/

/* The minimum requirement of xorriso towards the libisoburn header
   at compile time is defined in xorriso/xorrisoburn.h 
     xorriso_libisoburn_req_major
     xorriso_libisoburn_req_minor
     xorriso_libisoburn_req_micro
   It gets compared against the version macros in libburn/libburn.h :
     isoburn_header_version_major
     isoburn_header_version_minor
     isoburn_header_version_micro
   If the header is too old then the following code shall cause failure of
   cdrskin compilation rather than to allow production of a program with
   unpredictable bugs or memory corruption.
   The compiler messages supposed to appear in this case are:
      error: 'LIBISOBURN_MISCONFIGURATION' undeclared (first use in this function)
      error: 'INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libisoburn_dot_h_TOO_OLD__SEE_xorrisoburn_dot_c' undeclared (first use in this function)
      error: 'LIBISOBURN_MISCONFIGURATION_' undeclared (first use in this function)
*/
/* The indendation is an advise of man gcc to help old compilers ignoring */
 #if xorriso_libisoburn_req_major > isoburn_header_version_major
 #define Isoburn_libisoburn_dot_h_too_olD 1
 #endif
 #if xorriso_libisoburn_req_major == isoburn_header_version_major && xorriso_libisoburn_req_minor > isoburn_header_version_minor
 #define Isoburn_libisoburn_dot_h_too_olD 1
 #endif
 #if xorriso_libisoburn_req_minor == isoburn_header_version_minor && xorriso_libisoburn_req_micro > isoburn_header_version_micro
 #define Isoburn_libisoburn_dot_h_too_olD 1
 #endif

#ifdef Isoburn_libisoburn_dot_h_too_olD
LIBISOBURN_MISCONFIGURATION = 0;
INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libisoburn_dot_h_TOO_OLD__SEE_xorrisoburn_dot_c = 0;
LIBISOBURN_MISCONFIGURATION_ = 0;
#endif

/* End of ugly compile time test (scroll up for explanation) */


 sprintf(xorriso->info_text, "Starting up libraries ...\n");
 Xorriso_info(xorriso, 0);

 handler_prefix= calloc(strlen(xorriso->progname)+3+1, 1);
 if(handler_prefix==NULL) {
   sprintf(xorriso->info_text,
           "Cannot allocate memory for initializing libraries");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 reason[0]= 0;
 ret= isoburn_initialize(reason, 0);
 if(ret==0) {
   sprintf(xorriso->info_text, "Cannot initialize libraries");
   if(reason[0])
     sprintf(xorriso->info_text+strlen(xorriso->info_text),
             ". Reason given:\n%s", reason);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   free(handler_prefix);
   return(0);
 }
 ret= isoburn_is_compatible(isoburn_header_version_major,
                            isoburn_header_version_minor,
                            isoburn_header_version_micro, 0);
 if(ret<=0) {
   isoburn_version(&major, &minor, &micro);
   sprintf(xorriso->info_text,
          "libisoburn version too old: %d.%d.%d . Need at least: %d.%d.%d .\n",
          major, minor, micro,
          isoburn_header_version_major, isoburn_header_version_minor,
          isoburn_header_version_micro);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }

 xorriso->libs_are_started= 1;

 queue_sev= "ALL";
 if(xorriso->library_msg_direct_print) {

   /* >>> need option for controlling this in XorrisO.
          See also Xorriso_msgs_submit */;

   print_sev= xorriso->report_about_text;
 } else
   print_sev= "NEVER";

 iso_set_msgs_severities(queue_sev, print_sev, "libsofs : ");
 burn_msgs_set_severities(queue_sev, print_sev, "libburn : ");

 /* ??? >>> do we want united queues ? */
 /* burn_set_messenger(iso_get_messenger()); */

 sprintf(handler_prefix, "%s : ", xorriso->progname);
 burn_set_signal_handling(handler_prefix, NULL, 0);
 
 Xorriso_process_msg_queues(xorriso,0);
 if(reason[0]) {
   sprintf(xorriso->info_text, "%s", reason);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 }

 sprintf(xorriso->info_text, "Library startup done.\n");
 Xorriso_info(xorriso, 0);
 free(handler_prefix);
 return(1);
}


/* @param flag bit0= global shutdown of libraries */
int Xorriso_detach_libraries(struct XorrisO *xorriso, int flag)
{
 Xorriso_give_up_drive(xorriso, 3);
 if(xorriso->in_volset_handle!=NULL) { /* standalone image */
   iso_image_unref((IsoImage *) xorriso->in_volset_handle);
   xorriso->in_volset_handle= NULL;
 }
 if(flag&1) {
   if(xorriso->libs_are_started==0)
     return(0);
   isoburn_finish();
 }
 return(1);
}


/* @param flag bit1= obtain outdrive, else indrive */
int Xorriso_get_drive_handles(struct XorrisO *xorriso,
                              struct burn_drive_info **dinfo,
                              struct burn_drive **drive,
                              char *attempt, int flag)
{
 if(flag&2)
   *dinfo= (struct burn_drive_info *) xorriso->out_drive_handle;
 else
   *dinfo= (struct burn_drive_info *) xorriso->in_drive_handle;
 if(*dinfo==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text, "No %s drive aquired %s",
           (flag&2 ? "output" : "input"), attempt);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 *drive= (*dinfo)[0].drive;
 return((*drive)!=NULL);
}


int Xorriso__sev_to_text(int severity, char **severity_name,
                         int flag)
{
 int ret;

  ret= iso_sev_to_text(severity, severity_name);
  if(ret>0)
    return(ret);
  ret= burn_sev_to_text(severity, severity_name, 0);
  if(ret>0)
    return(ret);
 *severity_name= "";
 return(0);
}


int Xorriso__text_to_sev(char *severity_name, int *severity_number, int flag)
{
 int ret= 1;

 ret= iso_text_to_sev(severity_name, severity_number);
 if(ret>0)
   return(ret);
   ret= burn_text_to_sev(severity_name, severity_number, 0);
 return(ret);
}


/* @param flag bit0= report libisofs error text
               bit1= victim is disk_path
               bit2= do not inquire libisofs, report msg_text and min_severity
*/
int Xorriso_report_iso_error(struct XorrisO *xorriso, char *victim,
                        int iso_error_code, char msg_text[], int os_errno,
                        char min_severity[], int flag)
{
 int error_code, iso_sev, min_sev, ret;
 char *sev_text_pt, *msg_text_pt= NULL;
 char sfe[6*SfileadrL];
 static int sorry_sev= -1;

 if(sorry_sev<0)
   Xorriso__text_to_sev("SORRY", &sorry_sev, 0);

 if(flag&4) {
   error_code= 0x00050000;
   Xorriso__text_to_sev(min_severity, &iso_sev, 0);
 } else {
   error_code= iso_error_get_code(iso_error_code);
   if(error_code < 0x00030000 || error_code >= 0x00040000)
     error_code= (error_code & 0xffff) | 0x00050000;
   if(flag&1)
     msg_text_pt= (char *) iso_error_to_msg(iso_error_code);
   iso_sev= iso_error_get_severity(iso_error_code);
 }
 if(msg_text_pt==NULL)
   msg_text_pt= msg_text;

 if(iso_sev >= sorry_sev && (flag & 2) && victim[0])
   Xorriso_msgs_submit(xorriso, 0, victim, 0, "ERRFILE", 0);
 sev_text_pt= min_severity;
 Xorriso__text_to_sev(min_severity, &min_sev, 0);
 if(min_sev < iso_sev && !(flag&4))
   Xorriso__sev_to_text(iso_sev, &sev_text_pt, 0);
 strcpy(sfe, msg_text_pt);
 if(victim[0]) {
   strcat(sfe, ": ");
   Text_shellsafe(victim, sfe+strlen(sfe), 0);
 }
 ret= Xorriso_msgs_submit(xorriso, error_code, sfe, os_errno, sev_text_pt, 4);
 return(ret);
}


/* @param flag bit0= suppress messages below UPDATE
               bit1= suppress messages below FAILURE
*/
int Xorriso_set_image_severities(struct XorrisO *xorriso, int flag)
{
 char *queue_sev, *print_sev;

 if(flag&2)
   queue_sev= "FAILURE";
 else if(flag&1)
   queue_sev= "UPDATE";
 else
   queue_sev= "ALL";
 if(xorriso->library_msg_direct_print)
   print_sev= xorriso->report_about_text;
 else
   print_sev= "NEVER";
 iso_set_msgs_severities(queue_sev, print_sev, "libisofs : ");
 return(1);
}


int Xorriso_update_volid(struct XorrisO *xorriso, int flag)
{
 int gret, sret= 1;

 gret= Xorriso_get_volid(xorriso, xorriso->loaded_volid, 0);
 if(gret<=0 || (!xorriso->volid_default) || xorriso->loaded_volid[0]==0)
   sret= Xorriso_set_volid(xorriso, xorriso->volid, 1);
 return(gret>0 && sret>0);
} 
 

int Xorriso_create_empty_iso(struct XorrisO *xorriso, int flag)
{
 int ret;
 IsoImage *volset;
 struct isoburn_read_opts *ropts;
 struct burn_drive_info *dinfo= NULL;
 struct burn_drive *drive= NULL;

 if(xorriso->out_drive_handle != NULL) {
   ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                  "on attempt to attach volset to drive", 2);
   if(ret<=0)
     return(ret);
 }
 if(xorriso->in_volset_handle!=NULL) {
   iso_image_unref((IsoImage *) xorriso->in_volset_handle);
   xorriso->in_volset_handle= NULL;
   xorriso->loaded_volid[0]= 0;
   xorriso->volset_change_pending= 0;
   xorriso->no_volset_present= 0;
 }

 ret= isoburn_ropt_new(&ropts, 0);
 if(ret<=0)
   return(ret);
 /* Note: no return before isoburn_ropt_destroy() */
 isoburn_ropt_set_extensions(ropts, isoburn_ropt_pretend_blank);
 isoburn_ropt_set_input_charset(ropts, NULL);
 isoburn_set_read_pacifier(drive, NULL, NULL);
 ret= isoburn_read_image(drive, ropts, &volset);
 Xorriso_process_msg_queues(xorriso,0);
 isoburn_ropt_destroy(&ropts, 0);
 if(ret<=0) {
   sprintf(xorriso->info_text, "Failed to create new empty ISO image object");
   Xorriso_report_iso_error(xorriso, "", ret, xorriso->info_text, 0, "FATAL",
                            0);
   return(-1);
 }
 xorriso->in_volset_handle= (void *) volset;
 Xorriso_update_volid(xorriso, 0);
 xorriso->volset_change_pending= 0;
 xorriso->no_volset_present= 0;
 return(1);
}


/* @param flag bit0= aquire as isoburn input drive
               bit1= aquire as libburn output drive (as isoburn drive if bit0)
               bit2= regard overwriteable media as blank
               bit3= if the drive is a regular disk file: truncate it to
                     the write start address
               bit5= do not print toc
   @return <=0 failure , 1= ok
           2=success, but not writeable with bit1
           3=success, but not blank and not ISO with bit0
*/
int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
{
 int ret, hret, not_writeable= 0, has_what, aquire_flag;
 uint32_t size;
 struct burn_drive_info *dinfo= NULL, *out_dinfo, *in_dinfo;
 struct burn_drive *drive, *out_drive, *in_drive;
 enum burn_disc_status state;
 IsoImage *volset = NULL;
 struct isoburn_read_opts *ropts= NULL;
 char adr_data[SfileadrL], *libburn_adr, *boot_fate, *sev;

 if((flag&3)==0) { 
   sprintf(xorriso->info_text, 
         "XORRISOBURN program error : Xorriso_aquire_drive bit0+bit1 not set");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 ret= Xorriso_give_up_drive(xorriso, (flag&3)|8);
 if(ret<=0)
   return(ret);

 libburn_adr= adr;
 if(strcmp(adr,"stdio:/dev/fd/1")==0) {
   if(xorriso->dev_fd_1<0) {
     sprintf(xorriso->info_text,
     "-*dev \"stdio:/dev/fd/1\" was not a start argument. Cannot use it now.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     {ret= 0; goto ex;}
   } else {
     sprintf(adr_data, "stdio:/dev/fd/%d", xorriso->dev_fd_1);
     libburn_adr= adr_data;
   }
 }

 if((flag&3)==1 && xorriso->out_drive_handle!=NULL) {
   ret= Xorriso_get_drive_handles(xorriso, &out_dinfo, &out_drive,
                         "on attempt to compare new indev with outdev", 2);
   if(ret<=0)
     goto ex;
   ret= burn_drive_equals_adr(out_drive, libburn_adr, 1);
   if(ret==1)
     dinfo= out_dinfo;
 } else if((flag&3)==2 && xorriso->in_drive_handle!=NULL) {
   ret= Xorriso_get_drive_handles(xorriso, &in_dinfo, &in_drive,
                         "on attempt to compare new indev with outdev", 0);
   if(ret<=0)
     goto ex;
   ret= burn_drive_equals_adr(in_drive, libburn_adr, 1);
   if(ret==1)
     dinfo= in_dinfo;
 }

 if(dinfo==NULL) {
   isoburn_set_msgs_submit(Xorriso_msgs_submit_void, (void *) xorriso,
                           (3<<2) | 128 , 0);
   aquire_flag= 1 | ((flag&(8|4))>>1) | ((xorriso->toc_emulation_flag&1)<<3);
   ret= isoburn_drive_aquire(&dinfo, libburn_adr, aquire_flag);
   Xorriso_process_msg_queues(xorriso,0);
   if(ret<=0) {
     sprintf(xorriso->info_text,"Cannot aquire drive '%s'", adr); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto ex;
   }
   if(flag&1)
     if(xorriso->image_start_mode&(1<<31)) /* used up setting */
       xorriso->image_start_mode= 0; /* no need to perform auto setting */
 }
 drive= dinfo[0].drive;
 if(flag&1) {
   if(xorriso->image_start_mode&(1<<31)) /* used up setting */
     xorriso->image_start_mode&= ~0xffff; /* perform auto setting */
   if((xorriso->image_start_mode&(1<<30))) { /* if enabled at all */
     ret= isoburn_set_msc1(drive, xorriso->image_start_mode & 0xffff,
                           xorriso->image_start_value,
                           !!(xorriso->image_start_mode & (1<<16)));
     if(ret<=0)
       goto ex;
     if(xorriso->image_start_mode&(1<<31))
       xorriso->image_start_mode= 0; /* disable msc1 setting completely */
     else
       xorriso->image_start_mode|= (1<<31); /* mark as used up */
   }
 }
 state= isoburn_disc_get_status(drive);
 Xorriso_process_msg_queues(xorriso,0);
 if(flag&1) {
   volset= isoburn_get_attached_image(drive);
   if(volset != NULL) { /* The image object is already created */
     iso_image_unref(volset);
   }
 }

 if(flag&2) {
   xorriso->out_drive_handle= dinfo;
   if(Sfile_str(xorriso->outdev, adr, 0)<=0)
     {ret= -1; goto ex;}
   if(state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE) {
     sprintf(xorriso->info_text, "Disc status unsuitable for writing");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
     not_writeable= 1;
   }
 }
 if(flag&1) {
   xorriso->in_drive_handle= dinfo;
   if(Sfile_str(xorriso->indev, adr, 0)<=0)
     {ret= -1; goto ex;}
 } else if(flag&2) {
   if(xorriso->in_volset_handle==NULL) {
     /* No volume loaded: create empty one */
     ret= Xorriso_create_empty_iso(xorriso, 0);
     if(ret<=0)
       goto ex;
   } else {
     iso_image_ref((IsoImage *) xorriso->in_volset_handle);
     ret= isoburn_attach_image(drive, (IsoImage *) xorriso->in_volset_handle);
     if(ret<=0) {
       sprintf(xorriso->info_text,
               "Failed to attach ISO image object to outdev");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
       {ret= -1; goto ex;}
     }
   }
   if(!(flag&32))
     Xorriso_toc(xorriso, 1|2);
   {ret= 1+not_writeable; goto ex;}
 }

 if(xorriso->in_volset_handle!=NULL)
   iso_image_unref((IsoImage *) xorriso->in_volset_handle);
 xorriso->in_volset_handle= NULL;

 /* check for invalid state */
 if(state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE &&
    state != BURN_DISC_FULL) {
   sprintf(xorriso->info_text,
           "Disc status not blank and unsuitable for reading");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}
 }
 /* fill read opts */ 
 ret= isoburn_ropt_new(&ropts, 0);
 if(ret<=0)
   goto ex;
 isoburn_ropt_set_extensions(ropts, isoburn_ropt_noiso1999);
 isoburn_ropt_set_default_perms(ropts, (uid_t) 0, (gid_t) 0, (mode_t) 0555);
 isoburn_ropt_set_input_charset(ropts, NULL);
 
 Xorriso_set_image_severities(xorriso, 1); /* No DEBUG messages */
 Xorriso_pacifier_reset(xorriso, 0);
 isoburn_set_read_pacifier(drive, Xorriso__read_pacifier, (void *) xorriso);

 /* <<< Trying to work around too much tolerance on bad image trees.
        Better would be a chance to instruct libisofs what to do in
        case of image read errors. There is a risk to mistake other SORRYs.
 */
 if(xorriso->img_read_error_mode>0)
   iso_set_abort_severity("SORRY");

 ret= isoburn_read_image(drive, ropts, &volset);

 /* <<< Resetting to normal thresholds */
 if(xorriso->img_read_error_mode>0)
   Xorriso_set_abort_severity(xorriso, 0);

 if(ret<=0) {
   Xorriso_process_msg_queues(xorriso,0);
   Xorriso_set_image_severities(xorriso, 0);
   Xorriso_give_up_drive(xorriso, 1|((flag&32)>>2));
   sprintf(xorriso->info_text,"Cannot read ISO image tree");
   sev= "FAILURE";
   if(xorriso->img_read_error_mode==2)
     sev= "FATAL";
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, sev, 0);
   if(xorriso->img_read_error_mode!=0)
     Xorriso_msgs_submit(xorriso, 0, "You might get a partial or altered ISO image tree by option -error_behavior 'image_loading' 'best_effort'",
                         0, "HINT", 0);
   ret= 3; goto ex;
 }
 Xorriso_pacifier_callback(xorriso, "nodes read", xorriso->pacifier_count, 0,
                           "", 1); /* report end count */
 xorriso->in_volset_handle= (void *) volset;
 Xorriso_set_image_severities(xorriso, 0);
 Xorriso_update_volid(xorriso, 0);

 if(xorriso->out_drive_handle != NULL &&
    xorriso->out_drive_handle != xorriso->in_drive_handle) {
   ret= Xorriso_get_drive_handles(xorriso, &out_dinfo, &out_drive,
                         "on attempt to attach ISO image volset to outdev", 2);
   if(ret<=0)
     goto ex;
   iso_image_ref((IsoImage *) xorriso->in_volset_handle);
   isoburn_attach_image(out_drive, xorriso->in_volset_handle);
 }
 Xorriso_process_msg_queues(xorriso,0);
 isoburn_ropt_get_size_what(ropts, &size, &has_what);
 if(has_what & isoburn_ropt_has_el_torito) {
   if(xorriso->patch_isolinux_image)
     boot_fate= "patched as isolinux image";
   else if(xorriso->keep_boot_image)
     boot_fate= "kept unchanged";
   else
     boot_fate= "discarded";
   sprintf(xorriso->info_text,
         "Detected El-Torito boot information which currently is set to be %s",
         boot_fate);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0); 
 }
 if(!(flag&32)) {
   Xorriso_toc(xorriso, 1);
   if(xorriso->loaded_volid[0]!=0) {
     sprintf(xorriso->result_line,"Volume id    : '%s'\n",
             xorriso->loaded_volid);
     Xorriso_result(xorriso,0);
     if(strcmp(xorriso->loaded_volid, xorriso->volid)!=0 &&
        !xorriso->volid_default) {
       sprintf(xorriso->result_line, "New volume id: '%s'\n", xorriso->volid);
       Xorriso_result(xorriso,0);
     }
   }
 }
 ret= 1+not_writeable;
ex:
 Xorriso_process_msg_queues(xorriso,0);
 if(ret<=0) {
   hret= Xorriso_give_up_drive(xorriso, (flag&3)|((flag&32)>>2));
   if(hret<ret)
     ret= hret;
 }
 if(ropts!=NULL)
   isoburn_ropt_destroy(&ropts, 0);
 return(ret);
}


/* @param flag bit0=input drive
               bit1=output drive
               bit2=eject
               bit3=no info message or toc
*/
int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
{
 int in_is_out_too, ret;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 char sfe[5*SfileadrL];
 
 in_is_out_too= (xorriso->in_drive_handle == xorriso->out_drive_handle);
 if((flag&4) && in_is_out_too && (flag&(1|2))) {
   if((flag&3)!=3) {
     sprintf(xorriso->info_text,"Giving up for -eject whole -dev %s",
               Text_shellsafe(xorriso->indev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }
   flag|= 3; /* give up in/out drive to eject it */
 }
   
 if((flag&1) && xorriso->in_drive_handle != NULL) {
   Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                             "on attempt to give up drive", 0);

   if(!in_is_out_too) {
     if(drive!=NULL && !in_is_out_too)
       isoburn_drive_release(drive,!!(flag&4));
     if(dinfo!=NULL && !in_is_out_too)
       burn_drive_info_free(dinfo);
   }
   xorriso->in_drive_handle= NULL;
   xorriso->indev[0]= 0;

   if(xorriso->in_volset_handle!=NULL)
     iso_image_unref((IsoImage *) xorriso->in_volset_handle);
   xorriso->in_volset_handle= NULL;
   xorriso->loaded_volid[0]= 0;
   xorriso->volset_change_pending= 0;
   xorriso->no_volset_present= 0; 
   in_is_out_too= 0;
 }
 if((flag&2) && xorriso->out_drive_handle!=NULL) {
   Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                             "on attempt to give up drive", 2);
   if(!in_is_out_too) {
     if(drive!=NULL)
       isoburn_drive_release(drive,!!(flag&4));
     if(dinfo!=NULL)
       burn_drive_info_free(dinfo);
   }
   xorriso->out_drive_handle= NULL;
   xorriso->outdev[0]= 0;
 } else if((flag&1) && xorriso->out_drive_handle!=NULL) {
   ret= Xorriso_create_empty_iso(xorriso, 0);
   if(ret<=0)
     return(ret);
   if(!(flag&8)) {
     sprintf(xorriso->info_text,
             "Only the output drive remains. Created empty ISO image.\n");
     Xorriso_info(xorriso, 0);
     Xorriso_toc(xorriso, 1|2);
   }
 }
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


int Xorriso_make_write_options(
        struct XorrisO *xorriso, struct burn_drive *drive,
        struct burn_write_opts **burn_options, int flag)
{
 int drive_role;

 *burn_options= burn_write_opts_new(drive);
 if(*burn_options==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"Cannot allocate option set");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 burn_write_opts_set_simulate(*burn_options, !!xorriso->do_dummy);
 drive_role= burn_drive_get_drive_role(drive);
 burn_write_opts_set_multi(*burn_options,
                       !(xorriso->do_close || drive_role==0 || drive_role==3));
 burn_drive_set_speed(drive, xorriso->speed, xorriso->speed);
 burn_write_opts_set_stream_recording(*burn_options,
                                      !! xorriso->do_stream_recording);
 burn_write_opts_set_underrun_proof(*burn_options, 1);
 return(1);
}


/* @param flag bit0= do not write but only prepare and return size in sectors
               bit1= do not use isoburn wrappers
*/
int Xorriso_sanitize_image_size(struct XorrisO *xorriso,
                    struct burn_drive *drive, struct burn_disc *disc,
                    struct burn_write_opts *burn_options, int flag)
{
 int ret, img_sectors, num_sessions= 0, num_tracks= 0, padding= 0, profile;
 int media_space;
 char profile_name[80];
 struct burn_session **sessions;
 struct burn_track **tracks;

 img_sectors= burn_disc_get_sectors(disc);

 sessions= burn_disc_get_sessions(disc, &num_sessions);
 if(sessions==NULL || num_sessions < 1) {
no_track:;
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"Program error : no track in prepared disc");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   {ret= -1; goto ex;}
 }
 tracks= burn_session_get_tracks(sessions[0], &num_tracks);
 if(tracks==NULL || num_tracks < 1)
   goto no_track;

 padding= 0;
 ret= burn_disc_get_profile(drive, &profile, profile_name);
 padding= xorriso->padding / 2048;
 if(xorriso->padding > padding * 2048)
   padding++;
 if(img_sectors>0 && ret>0 && 
    (profile==0x09 || profile==0x0a)) { /* CD-R , CD-RW */
   if(img_sectors + padding < Xorriso_cd_min_track_sizE) {
     padding= Xorriso_cd_min_track_sizE - img_sectors;
     sprintf(xorriso->info_text,
             "Expanded track to minimum size of %d sectors",
             Xorriso_cd_min_track_sizE);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }
 }
 burn_track_define_data(tracks[0], 0, padding * 2048, 0, BURN_MODE1);
 Xorriso_process_msg_queues(xorriso,0);

 if(flag&2)
   media_space= burn_disc_available_space(drive, burn_options) /
                (off_t) 2048;
 else
   media_space= isoburn_disc_available_space(drive, burn_options) /
                (off_t) 2048;
 if(media_space < img_sectors + padding) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"Image size %ds exceeds free space on media %ds",
           img_sectors + padding, media_space);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }
 if(flag&1) {
   ret= img_sectors+padding;
 } else
   ret= 1;
ex:;
 return(ret);
}


/* @param flag bit0= do not write but only prepare and return size in sectors
*/
int Xorriso_write_session(struct XorrisO *xorriso, int flag)
{
 int ret, relax= 0, i, profile, status, num_formats;
 int major, minor, micro;
 unsigned dummy;
 char xorriso_id[256], *img_id, profile_name[80], sfe[5*SfileadrL];
 struct isoburn_imgen_opts *sopts= NULL;
 struct burn_drive_info *dinfo, *source_dinfo;
 struct burn_drive *drive, *source_drive;
 struct burn_disc *disc= NULL;
 struct burn_write_opts *burn_options;
 off_t readcounter= 0,writecounter= 0, size;
 int num_sessions= 0, num_tracks= 0;
 struct burn_session **sessions;
 struct burn_track **tracks;
 enum burn_disc_status s;
 IsoImage *image = NULL;
 ElToritoBootImage *bootimg;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to write", 2);
 if(ret<=0)
   return(0);
 ret= burn_disc_get_profile(drive, &profile, profile_name);
 if(ret>0 && (!(flag&1)) &&
    (profile==0x12 || profile==0x43)) { /* DVD-RAM or BD-RE */
   ret= burn_disc_get_formats(drive, &status, &size, &dummy, &num_formats);
   if(ret>0 && status==BURN_FORMAT_IS_UNFORMATTED) {
     sprintf(xorriso->info_text,
             "Unformatted %s media detected. Trying -format fast.",
             profile_name);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     ret= Xorriso_format_media(xorriso, 1);
     if(ret<=0) {
       sprintf(xorriso->info_text, "Automatic formatting of %s failed",
               profile_name);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       return(ret);
     }
     ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                   "on attempt to write", 2);
     if(ret<=0)
       return(0);
   }
 }

 if(xorriso->out_drive_handle == xorriso->in_drive_handle) {
   source_drive= drive;
 } else {
   if(xorriso->in_drive_handle == NULL) {
     source_drive= drive;
   } else {
     ret= Xorriso_get_drive_handles(xorriso, &source_dinfo, &source_drive,
                                    "on attempt to get source for write", 0);
     if(ret<=0)
       goto ex;
   }
   s= isoburn_disc_get_status(drive);
   if(s!=BURN_DISC_BLANK) {
     s= burn_disc_get_status(drive);
     if(s!=BURN_DISC_BLANK)
       sprintf(xorriso->info_text,
               "-indev differs from -outdev and -outdev media is not blank");
     else
       sprintf(xorriso->info_text,
          "-indev differs from -outdev and -outdev media holds non-zero data");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     {ret= 0; goto ex;}
   }
 }

 ret= isoburn_igopt_new(&sopts, 0);
 if(ret<=0)
   return(ret);
 relax= isoburn_igopt_allow_deep_paths;

 /* Adjust or discard boot image */
 image= isoburn_get_attached_image(source_drive);
 /* >>> ??? move down to libisoburn ? */
 if(image!=NULL && !(flag&1)) {
   ret= iso_image_get_boot_image(image, &bootimg, NULL, NULL);
   if(xorriso->patch_isolinux_image) {
     if(ret==1) {
       relax|= isoburn_igopt_allow_full_ascii;
       sprintf(xorriso->info_text, "Patching alleged isolinux boot image");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
       el_torito_patch_isolinux_image(bootimg);
     } else {
       sprintf(xorriso->info_text,
               "Could not find any boot image for -boot_image isolinux patch");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
     }
   } else if(xorriso->keep_boot_image && ret==1) {
     relax|= isoburn_igopt_allow_full_ascii;
     sprintf(xorriso->info_text, "Keeping boot image unchanged");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   } else if(ret==1) {
     iso_image_remove_boot_image(image);
     sprintf(xorriso->info_text, "Discarded boot image from old session");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }
 }
 isoburn_igopt_set_level(sopts, 2);
 isoburn_igopt_set_extensions(sopts, 1|((!!xorriso->do_joliet)<<1));
 isoburn_igopt_set_relaxed(sopts, isoburn_igopt_allow_deep_paths);
 isoburn_igopt_set_sort_files(sopts, 1);
 isoburn_igopt_set_over_mode(sopts, 0, 0, (mode_t) 0, (mode_t) 0);
 isoburn_igopt_set_over_ugid(sopts, 0, 0, (uid_t) 0, (gid_t) 0);
 isoburn_igopt_set_out_charset(sopts, NULL);
 isoburn_igopt_set_fifo_size(sopts, xorriso->fs * 2048);

 if(image!=NULL &&
    strlen(Xorriso_program_versioN)+strlen(Xorriso_timestamP)<80) {
   sprintf(xorriso_id, "XORRISO-%s %s",
           Xorriso_program_versioN, Xorriso_timestamP);
   isoburn_version(&major, &minor, &micro);
   if(strlen(xorriso_id)<80)
     sprintf(xorriso_id+strlen(xorriso_id),
             ", LIBISOBURN-%d.%d.%d", major, minor, micro);
   iso_lib_version(&major, &minor, &micro);
   if(strlen(xorriso_id)<80)
     sprintf(xorriso_id+strlen(xorriso_id),
             ", LIBISOFS-%d.%d.%d", major, minor, micro);
   burn_version(&major, &minor, &micro);
   if(strlen(xorriso_id)<80)
     sprintf(xorriso_id+strlen(xorriso_id),
             ", LIBBURN-%d.%d.%d", major, minor, micro);
   xorriso_id[128]= 0;
   img_id= (char *) iso_image_get_data_preparer_id(image);
   if(img_id!=NULL) {
     for(i= strlen(img_id)-1; i>=0 && img_id[i]==' '; i--);
     if(i>0) {
       sprintf(xorriso->info_text, "Overwrote previous preparer id '%s'",
               img_id);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
     }
   }
   iso_image_set_data_preparer_id(image, xorriso_id);
 }

 /* Make final abort check before starting expensive activities */
 ret= Xorriso_eval_problem_status(xorriso, 1, 0);
 if(ret<0)
   {ret= 0; goto ex;}
 Xorriso_set_abort_severity(xorriso, 1);
 if (xorriso->grow_blindly_msc2 >= 0 &&
     xorriso->out_drive_handle != xorriso->in_drive_handle) {
   ret= isoburn_prepare_blind_grow(source_drive, &disc, sopts, drive,
                                   xorriso->grow_blindly_msc2);
   if(ret>0) {
     /* Allow the consumer of output to access the input drive */
     source_drive= NULL;
     ret= Xorriso_give_up_drive(xorriso, 1|8); 
     if(ret<=0)
       goto ex;
   }
 } else if(xorriso->out_drive_handle == xorriso->in_drive_handle ||
           xorriso->in_drive_handle == NULL) {
   ret= isoburn_prepare_disc(source_drive, &disc, sopts);
 } else {
   ret= isoburn_prepare_new_image(source_drive, &disc, sopts, drive);
 }
 if(ret <= 0) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"Failed to prepare session write run");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }

 isoburn_igopt_get_effective_lba(sopts, &(xorriso->session_lba));

 ret= Xorriso_make_write_options(xorriso, drive, &burn_options, 0);
 if(ret<=0)
   goto ex;

 ret= Xorriso_sanitize_image_size(xorriso, drive, disc, burn_options, flag&1);
 if(ret<=0 || (flag&1)) {
   Xorriso_process_msg_queues(xorriso,0);
   if(flag&1) /* set queue severity to FAILURE */
     Xorriso_set_image_severities(xorriso, 2);
   isoburn_cancel_prepared_write(source_drive, drive, 0);
   if(flag&1) /* reset queue severity */
     Xorriso_set_image_severities(xorriso, 0);
   goto ex;
 }

 xorriso->run_state= 1; /* Indicate that burning has started */
 isoburn_disc_write(burn_options, disc);
 burn_write_opts_free(burn_options);

 ret= Xorriso_pacifier_loop(xorriso, drive, 0);
 if(ret<=0)
   goto ex;
 if(!isoburn_drive_wrote_well(drive)) {
   isoburn_cancel_prepared_write(source_drive, drive, 0);
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "libburn indicates failure with writing.");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }

 sessions= burn_disc_get_sessions(disc, &num_sessions);
 if(num_sessions>0) {
   tracks= burn_session_get_tracks(sessions[0], &num_tracks);
   if(tracks!=NULL && num_tracks>0) {
     burn_track_get_counters(tracks[0],&readcounter,&writecounter);
     xorriso->session_blocks= (int) (writecounter/ (off_t) 2048);
     sprintf(xorriso->info_text,
  "ISO image produced: %d sectors\nWritten to media  : %d sectors at LBA %d\n",
        (int) (readcounter/ (off_t) 2048),
        xorriso->session_blocks, xorriso->session_lba);
     Xorriso_info(xorriso, 0);
   }
 }
 ret= isoburn_activate_session(drive);
 Xorriso_process_msg_queues(xorriso,0);
 if(ret<=0) {
   sprintf(xorriso->info_text,
           "Could not write new set of volume descriptors");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   goto ex;
 }
 /* Done early to free any reference to the libisofs resources via disc */
 if(disc!=NULL)
   burn_disc_free(disc);
 disc= NULL;
 /* To wait for the end of the libisofs threads and their messages. */
 isoburn_sync_after_write(source_drive, drive, 0);
 Xorriso_process_msg_queues(xorriso,0);

 sprintf(xorriso->info_text, "Writing to %s completed sucessfully.\n\n",
         Text_shellsafe(xorriso->outdev,sfe,0));
 Xorriso_info(xorriso, 0);
 ret= 1;
ex:;
 xorriso->run_state= 0; /* Indicate that burning has ended */
 Xorriso_set_abort_severity(xorriso, 0);

 if(ret<=0) {
   /* >>> ??? revive discarded boot image */;
 }

 if(disc!=NULL)
   burn_disc_free(disc);
 isoburn_igopt_destroy(&sopts, 0);
 Xorriso_process_msg_queues(xorriso,0);
 return(ret);
} 


int Xorriso_check_burn_abort(struct XorrisO *xorriso, int flag)
{
 int ret;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;

 if(xorriso->run_state!=1)
   return(0);
 ret= Xorriso_eval_problem_status(xorriso, 1, 1);
 if(ret>=0)
   return(0);
 sprintf(xorriso->info_text,
         "-abort_on '%s' encountered '%s' during image writing",
         xorriso->abort_on_text, xorriso->problem_status_text);
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,
                     xorriso->problem_status_text, 0);

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to abort burn run", 2);
 if(ret<=0)
   return(0);

 burn_drive_cancel(drive);
 sprintf(xorriso->info_text,
         "libburn has now been urged to cancel its operation");
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
 return(1);
}


/* This loop watches burn runs until they end.
   It issues pacifying update messages to the user.
   @param flag bit0-3 = emulation mode
                        0= xorriso
                        1= mkisofs
                        2= cdrecord
               bit4= report speed in CD units
*/
int Xorriso_pacifier_loop(struct XorrisO *xorriso, struct burn_drive *drive,
                          int flag)
{
 int ret, size, free_bytes, i, aborting= 0, emul, buffer_fill= 50, last_sector;
 struct burn_progress progress;
 char *status_text, date_text[80];
 enum burn_drive_status drive_status;
 double start_time, current_time, last_time;
 double measured_speed, speed_factor= 1385000, quot;
 time_t time_prediction;

 start_time= Sfile_microtime(0);
 while(burn_drive_get_status(drive, NULL) == BURN_DRIVE_SPAWNING)
   usleep(100002);

 emul= flag&15;
 if(emul==0)
   emul= xorriso->pacifier_style;
 if(flag&16)
   speed_factor= 150.0*1024;
 progress.sector= 0;
 current_time= Sfile_microtime(0);
 while(1) {
   last_time= current_time;
   last_sector= progress.sector;
   drive_status= burn_drive_get_status(drive, &progress);
   if(drive_status == BURN_DRIVE_IDLE)
 break;
   current_time= Sfile_microtime(0);
   if(drive_status == BURN_DRIVE_WRITING && progress.sectors > 0) {
     if(emul==2) {
       if(progress.sector<=progress.sectors)
         sprintf(xorriso->info_text, "%4d of %4d MB written",
                 progress.sector / 512, progress.sectors / 512);
       else
         sprintf(xorriso->info_text, "%4d MB written",
                 progress.sector / 512);

       if(xorriso->pacifier_fifo!=NULL)
         ret= burn_fifo_inquire_status(xorriso->pacifier_fifo,
                                       &size, &free_bytes, &status_text);
       else
         ret= isoburn_get_fifo_status(drive, &size, &free_bytes, &status_text);
       if(ret>0 )
         sprintf(xorriso->info_text+strlen(xorriso->info_text),
                 " (fifo %2d%%)", 
                 (int) (100.0-100.0*((double) free_bytes)/(double) size));

       buffer_fill= 50;
       if(progress.buffer_capacity>0)
         buffer_fill= (double) (progress.buffer_capacity
                                - progress.buffer_available) * 100.0
                      / (double) progress.buffer_capacity;
       sprintf(xorriso->info_text+strlen(xorriso->info_text), " [buf %3d%%]",
               buffer_fill);

       if(current_time-last_time>0.2) {
         measured_speed= (progress.sector - last_sector) * 2048.0 /
                         (current_time - last_time);
         sprintf(xorriso->info_text+strlen(xorriso->info_text), "  %4.1fx.",
                 measured_speed/speed_factor);
       }

     } else if(emul == 1 &&
               progress.sectors > 0 && progress.sector <= progress.sectors) {
       /* "37.87% done, estimate finish Tue Jul 15 18:55:07 2008" */

       quot= ((double) progress.sector) / ((double) progress.sectors);
       sprintf(xorriso->info_text, " %2.2f%% done", quot*100.0);
       if(current_time - start_time >= 2 && quot >= 0.02) {
         time_prediction= current_time +
                          (1.0 - quot) / quot * (current_time-start_time) + 1;
         Ftimetxt(time_prediction, date_text, 4);
         sprintf(xorriso->info_text+strlen(xorriso->info_text),
                 ", estimate finish %s", date_text);
       }
     } else {
       if(progress.sector<=progress.sectors)
         sprintf(xorriso->info_text, "Writing: sector %d of %d",
                 progress.sector, progress.sectors);
       else
         sprintf(xorriso->info_text, "Writing: sector %d", progress.sector);
       ret= isoburn_get_fifo_status(drive, &size, &free_bytes, &status_text);
       if(ret>0 )
         sprintf(xorriso->info_text+strlen(xorriso->info_text),
                 "  [fifo %s, %2d%% fill]", status_text,
                 (int) (100.0-100.0*((double) free_bytes)/(double) size));
     }
   } else if(drive_status == BURN_DRIVE_CLOSING_SESSION ||
             drive_status == BURN_DRIVE_CLOSING_TRACK)
     sprintf(xorriso->info_text,
             "Closing track/session. Working since %.f seconds",
             current_time-start_time);
   else if(drive_status == BURN_DRIVE_FORMATTING)
     sprintf(xorriso->info_text, "Formatting. Working since %.f seconds",
             current_time-start_time);
   else
     sprintf(xorriso->info_text,
             "Thank you for being patient since %.f seconds",
             current_time-start_time);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);

   for(i= 0; i<10; i++) {
     Xorriso_process_msg_queues(xorriso, 0);
     if(aborting<=0)
       aborting= Xorriso_check_burn_abort(xorriso, 0);
     usleep(100000);
   }
 }
 return(1);
}


int Xorriso__read_pacifier(IsoImage *image, IsoFileSource *filesource)
{
 struct XorrisO *xorriso;

 xorriso= (struct XorrisO *) iso_image_get_attached_data(image);
 if(xorriso==NULL)
   return(1);
 xorriso->pacifier_count++;
 if(xorriso->pacifier_count%10)
   return(1);
 Xorriso_pacifier_callback(xorriso, "nodes read", xorriso->pacifier_count, 0,
                           "", 0);
 return(1);
}


int Xorriso_get_volume(struct XorrisO *xorriso, IsoImage **volume,
                       int flag)
{
 if(xorriso->in_volset_handle==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"No ISO image present.");
   if(xorriso->indev[0]==0 && xorriso->outdev[0]==0)
     sprintf(xorriso->info_text+strlen(xorriso->info_text),
             " No -dev, -indev, or -outdev selected.");
   else
     sprintf(xorriso->info_text+strlen(xorriso->info_text),
             " Possible program error with drive '%s'.", xorriso->indev);

   if(!xorriso->no_volset_present)
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   xorriso->no_volset_present= 1;
   return(0);
 }
 *volume= (IsoImage *) xorriso->in_volset_handle;
 xorriso->no_volset_present= 0;
 return(*volume != NULL);
}


/* @param flag bit0=do not complain about non existent node */
int Xorriso_node_from_path(struct XorrisO *xorriso, IsoImage *volume,
                           char *path, IsoNode **node, int flag)
{
 int ret;
 char sfe[5*SfileadrL], *path_pt;

 path_pt= path;
 if(path[0]==0)
   path_pt= "/";
 *node= NULL;
 ret= iso_tree_path_to_node(volume, path_pt, node);
 Xorriso_process_msg_queues(xorriso,0);
 if(ret<=0 || (*node)==NULL) {
   if(!(flag&1)) {
     sprintf(xorriso->info_text, "Cannot find path %s in loaded ISO image",
             Text_shellsafe(path_pt, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   }
   return(0);
 }
 return(1);
}


/* @param eff_path  returns resulting effective path.
                    Must provide at least SfileadrL bytes of storage.
   @param flag bit0= do not produce problem events (unless faulty path format)
               bit1= work purely literally, do not use libisofs
               bit2= (with bit1) this is an address in the disk world
               bit3= return root directory as "/" and not as ""
               bit4= (with bit2) determine type of disk file eff_path
                     and return 0 if not existing
               bit5= (with bit3) this is not a parameter
               bit6= insist in having an ISO image, even with bits1+2
   @return -1 = faulty path format, 0 = not found ,
            1 = found simple node , 2 = found directory
*/
int Xorriso_normalize_img_path(struct XorrisO *xorriso, char *wd,
                               char *img_path, char eff_path[], int flag)
{
 int ret, is_dir= 0, done= 0;
 IsoImage *volume;
 IsoDir *dir= NULL;
 IsoNode *node= NULL;
 char path[SfileadrL], *apt, *npt, sfe[5*SfileadrL], *cpt;

 if((flag&64) || !(flag&2)) {
   ret= Xorriso_get_volume(xorriso, &volume, 0);
   if(ret<=0)
     return(ret);
 }

 eff_path[0]= 0;
 if(img_path[0]==0) {
   if(flag&8)
     strcpy(eff_path, "/");
   return(2); /* root directory */
 }

 apt= npt= path;
 if(img_path[0]!='/') {
   strcpy(path, wd);
   ret= Sfile_add_to_path(path, img_path, 0);
   if(ret<=0)
     goto much_too_long;
 } else
   if(Sfile_str(path, img_path, 0)<=0)
     return(-1);

 if(path[0]!='/') {
   sprintf(xorriso->info_text,
        "Internal error: Unresolvable relative addressing in iso_rr_path '%s'",
        img_path);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FATAL", 0);
   return(-1);
 } else if(path[1]==0) {
   if(flag&8)
     strcpy(eff_path, "/");
   return(2); /* root directory */
 }

 for(npt= apt; !done; apt= npt+1) {
   npt= strchr(apt, '/');
   if(npt==NULL) {
     npt= apt+strlen(apt);
     done= 1;
   } else
     *npt= 0;
   if(*apt==0) {
     *apt= '/';
     apt++;
     if(done)
 break;
 continue;
   }
   if(strcmp(apt,".")==0) {
     is_dir= 1;
 continue;
   }
   if(strcmp(apt,"..")==0) {
     if(!(flag&2)) {
       node= (IsoNode *) dir;
       if(node==NULL) {
bonked_root:;
         sprintf(xorriso->info_text,
                 "Relative addressing in path exceeds root directory: %s",
                 Text_shellsafe(img_path, sfe, 0));
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
         return(-1);
       }
       dir= iso_node_get_parent(node);
     }
     /* truncate eff_path */;
     cpt= strrchr(eff_path, '/');
     if(cpt==NULL) /* ??? if not flag&2 then this is a bug */
       goto bonked_root;
     *cpt= 0;
     is_dir= 1;
 continue;
   }
   ret= Sfile_add_to_path(eff_path, apt, 0);
   if(ret<=0) {
much_too_long:;
     sprintf(xorriso->info_text, "Effective path gets much too long (%d)",
             (int) (strlen(eff_path)+strlen(apt)+1));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(-1);
   }
   if(!(flag&2)) {
     dir= (IsoDir *) node;
     ret= Xorriso_node_from_path(xorriso, volume, eff_path, &node, flag&1);
     if(ret<=0) 
       return(0);
     if(dir==NULL) /* could be false with  "/dir/.." */
       dir= iso_node_get_parent(node);
     is_dir= LIBISO_ISDIR(node);
   }
 }
 if(flag&16) {
   ret= Sfile_type(eff_path,
    1|(4*(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&32)))
                  ));
   if(ret<0)
     return(0);
   if(ret==2)
     is_dir= 1;
 }
 return(1+!!is_dir);
}


int Xorriso_get_node_by_path(struct XorrisO *xorriso,
                             char *in_path, char *eff_path,
                             IsoNode **node, int flag)
{
 int ret;
 char path[SfileadrL];
 IsoImage *volume;

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, in_path, path, 0);
 if(ret<=0)
   return(ret);
 if(eff_path!=NULL)
   strcpy(eff_path, path);
 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 ret= Xorriso_node_from_path(xorriso, volume, path, node, 0);
 if(ret<=0)
   return(0);
 return(1);
}


/* @param flag
*/
int Xorriso_node_get_dev(struct XorrisO *xorriso, IsoNode *node,
                         char *path, dev_t *dev, int flag)
{
 *dev= iso_special_get_dev((IsoSpecial *) node);
 return(1);
}


/* @param flag bit0= *node is already valid
               bit1= add extra block for size estimation
               bit2= complain loudely if path is missing in image
*/
int Xorriso_fake_stbuf(struct XorrisO *xorriso, char *path, struct stat *stbuf,
                       IsoNode **node, int flag)
{
 int ret;
 IsoImage *volume;

 memset((char *) stbuf, 0, sizeof(struct stat));
 if(!(flag&1)) {
   ret= Xorriso_get_volume(xorriso, &volume, 0);
   if(ret<=0)
     return(-1);
   ret= Xorriso_node_from_path(xorriso, volume, path, node, !(flag&4));
   if(ret<=0)
     *node= NULL;
 }
 if(*node==NULL)
   return(0);

 /* >>> stbuf->st_dev */
 /* >>> stbuf->st_ino */

 stbuf->st_mode= iso_node_get_permissions(*node) & 07777;
 if(LIBISO_ISDIR(*node))
   stbuf->st_mode|= S_IFDIR;
 else if(LIBISO_ISREG(*node))
   stbuf->st_mode|= S_IFREG;
 else if(LIBISO_ISLNK(*node))
   stbuf->st_mode|= S_IFLNK;
 else if(LIBISO_ISCHR(*node)) {
   stbuf->st_mode|= S_IFCHR;
   Xorriso_node_get_dev(xorriso, *node, path, &(stbuf->st_rdev), 0);
 } else if(LIBISO_ISBLK(*node)) {
   stbuf->st_mode|= S_IFBLK;
   Xorriso_node_get_dev(xorriso, *node, path, &(stbuf->st_rdev), 0);
 } else if(LIBISO_ISFIFO(*node))
   stbuf->st_mode|= S_IFIFO;
 else if(LIBISO_ISSOCK(*node))
   stbuf->st_mode|= S_IFSOCK;

 /* >>> NG  How to represent LIBISO_BOOT ? */


 /* >>> With directories this should be : number of subdirs + 2 */
 /* >>> ??? How to obtain RR hardlink number for other types ? */
 stbuf->st_nlink= 1;

 stbuf->st_uid= iso_node_get_uid(*node);
 stbuf->st_gid= iso_node_get_gid(*node);

 if(LIBISO_ISREG(*node))
   stbuf->st_size= iso_file_get_size((IsoFile *) *node)+ (2048 * !!(flag&2));
 else
   stbuf->st_size= 0;

 stbuf->st_blksize= 2048;
 stbuf->st_blocks= stbuf->st_size / (off_t) 2048;
 if(stbuf->st_blocks * (off_t) 2048 != stbuf->st_size)
   stbuf->st_blocks++; 

 stbuf->st_atime= iso_node_get_atime(*node);
 stbuf->st_mtime= iso_node_get_mtime(*node);
 stbuf->st_ctime= iso_node_get_ctime(*node);
 return(1);
}


/* @param flag >>>  bit0= follow links (i.e. stat() rather than lstat()
               bit1= do not return -2 on severe errors
               bit2= complain loudely if path is missing in image
*/
int Xorriso_iso_lstat(struct XorrisO *xorriso, char *path, struct stat *stbuf,
                      int flag)
{
 int ret;
 IsoNode *node;

 if(flag&1) {

   /* >>> follow link in ISO image */;

 }

 ret= Xorriso_fake_stbuf(xorriso, path, stbuf, &node, flag&4);
 if(ret>0)
   return(0);
 if(ret<0 && !(flag&2))
   return(-2);
 return(-1);
}


/* @param flag bit0= give directory x-permission where is r-permission
*/
int Xorriso_transfer_properties(struct XorrisO *xorriso, struct stat *stbuf,
                                IsoNode *node, int flag)
{
 mode_t mode;

 mode= stbuf->st_mode;
 if((flag&1) && S_ISDIR(mode)) {
   if(mode&S_IRUSR)
     mode|= S_IXUSR;
   if(mode&S_IRGRP)
     mode|= S_IXGRP;
   if(mode&S_IROTH)
     mode|= S_IXOTH;
 }
 iso_node_set_permissions(node, mode & 07777);
 iso_node_set_uid(node, stbuf->st_uid);
 iso_node_set_gid(node, stbuf->st_gid);
 iso_node_set_atime(node, stbuf->st_atime);
 iso_node_set_mtime(node, stbuf->st_mtime);
 iso_node_set_ctime(node, stbuf->st_ctime);
 return(1);
}


int Xorriso_graft_split(struct XorrisO *xorriso, IsoImage *volume,
                        IsoDir *dir, char *disk_path, char *img_name,
                        char *nominal_source, char *nominal_target,
                        off_t size, IsoNode **node, int flag)
{
 int ret;
 IsoDir *new_dir= NULL;
 IsoNode *part_node;
 int partno, total_parts;
 off_t offset;
 char part_name[SfileadrL], sfe[5*SfileadrL];

 ret= iso_tree_add_new_dir(dir, img_name, &new_dir);
 if(ret<0)
   return(ret);
 *node= (IsoNode *) new_dir;

 total_parts= size / xorriso->split_size;
 if(size % xorriso->split_size)
   total_parts++;
 for(partno= 1; partno<=total_parts; partno++) {
   offset = xorriso->split_size * (off_t) (partno-1);
   Splitpart__compose(part_name, partno, total_parts, offset,
                      xorriso->split_size, size, 0);
   ret= Xorriso_tree_graft_node(xorriso, volume,
                                new_dir, disk_path, part_name,
                                nominal_source, nominal_target,
                                offset, xorriso->split_size,
                                &part_node, 8);
   if(ret<=0)
     return(0);
 }
 sprintf(xorriso->info_text, "Split into %d parts: %s",
         total_parts, Text_shellsafe(nominal_target, sfe, 0));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
 return(1);
}


/* 
   @param flag bit3= cut_out_node: offset and size are valid
*/
int Xorriso_tree_graft_node(struct XorrisO *xorriso, IsoImage *volume,
                            IsoDir *dir, char *disk_path, char *img_name,
                            char *nominal_source, char *nominal_target,
                            off_t offset, off_t cut_size,
                            IsoNode **node, int flag)
{
 int ret;
 struct stat stbuf;
 char sfe[5*SfileadrL];
 off_t size= 0;
 static off_t limit= ((off_t) 4) * ((off_t) 1024*1024*1024) - (off_t) 1;

 if(flag&8)  {
   if(cut_size > limit) {
     sprintf(xorriso->info_text,
             "File piece exceeds size limit of %.f bytes: %.f from %s\n",
             (double) limit, (double) cut_size,
             Text_shellsafe(disk_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(0);
   }
   ret= iso_tree_add_new_cut_out_node(volume, dir, img_name, disk_path,
                                      offset, cut_size, node);
   if(ret<0)
     goto ex;
 } else {

   if(stat(disk_path, &stbuf)!=-1)
     if(S_ISREG(stbuf.st_mode))
       size= stbuf.st_size;
   if(xorriso->split_size > 0 && size > xorriso->split_size) {
     ret= Xorriso_graft_split(xorriso, volume, dir, disk_path, img_name,
                              nominal_source, nominal_target, size,
                              node, 0);
     if(ret<=0)
       goto ex;
     return(1);
   } else if(size > limit) {
     sprintf(xorriso->info_text,
             "File exceeds size limit of %.f bytes: %s\n",
             (double) limit, Text_shellsafe(disk_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(0);
   }
   ret= iso_tree_add_new_node(volume, dir, img_name, disk_path, node);
   if(ret<0)
     goto ex;
 }
ex:;
 if(ret<0) {
   Xorriso_process_msg_queues(xorriso,0);
   Xorriso_report_iso_error(xorriso, nominal_source, ret,
                            "Cannot add node to tree", 0, "FAILURE", 1|2);
   return(ret);
 }
 if(LIBISO_ISREG(*node))
   xorriso->pacifier_byte_count+= iso_file_get_size((IsoFile *) *node);
 return(1);
}


/* @param flag bit0= recursion is active
               bit1= do not report added files
*/
int Xorriso_add_tree(struct XorrisO *xorriso, IsoDir *dir,
                     char *img_dir_path, char *disk_dir_path,
                     struct LinkiteM *link_stack, int flag)
{
 IsoImage *volume;
 IsoNode *node;
 IsoSymlink *iso_symlink;
 int ret, target_is_dir, source_is_dir, source_is_link, fret, was_failure= 0;
 int do_not_dive, target_is_split= 0;
 struct DirseQ *dirseq= NULL;
 char *name, *img_name, *srcpt, *stbuf_src= "";
 struct stat stbuf, hstbuf;
 dev_t dir_dev;
 struct LinkiteM *own_link_stack;

#ifdef Xorriso_fat_local_meM
 char sfe[5*SfileadrL], sfe2[5*SfileadrL];
 char disk_path[2*SfileadrL], img_path[2*SfileadrL], link_target[SfileadrL];
#else /* Xorriso_fat_local_meM */

 char *sfe= NULL, *sfe2= NULL;
 char *disk_path= NULL, *img_path= NULL, *link_target= NULL;

 /* Avoiding large local memory objects in order to save stack space */
 sfe= malloc(5*SfileadrL);
 sfe2= malloc(5*SfileadrL);
 disk_path= malloc(2*SfileadrL);
 img_path= malloc(2*SfileadrL);
 link_target= malloc(SfileadrL);
 if(sfe==NULL || sfe2==NULL || disk_path==NULL || img_path==NULL ||
    link_target==NULL) {
   Xorriso_no_malloc_memory(xorriso, &sfe, 0);
   {ret= -1; goto ex;}
 }
   
#endif /* ! Xorriso_fat_local_meM */

 own_link_stack= link_stack;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   goto ex;

 stbuf_src= disk_dir_path;
 if(lstat(disk_dir_path, &stbuf)==-1)
   goto cannot_open_dir;
 dir_dev= stbuf.st_dev;
 if(S_ISLNK(stbuf.st_mode)) {
   if(!(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&1))))
     {ret= 2; goto ex;}
   stbuf_src= disk_dir_path;
   if(stat(disk_dir_path, &stbuf)==-1)
     goto cannot_open_dir;
   if(dir_dev != stbuf.st_dev &&
      !(xorriso->do_follow_mount || (xorriso->do_follow_param && !(flag&1))))
     {ret= 2; goto ex;}
 }
 ret= Dirseq_new(&dirseq, disk_dir_path, 1);
 if(ret<0) {
   sprintf(xorriso->info_text,"Failed to create source filesystem iterator");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   {ret= -1; goto ex;}
 }
 if(ret==0) {
cannot_open_dir:;
   Xorriso_msgs_submit(xorriso, 0, disk_dir_path, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,"Cannot open as source directory: %s",
           Text_shellsafe(disk_dir_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }

 if(Sfile_str(disk_path, disk_dir_path,0)<=0)
   {ret= -1; goto ex;}
 if(disk_path[0]==0 || disk_path[strlen(disk_path)-1]!='/')
   strcat(disk_path,"/");
 name= disk_path+strlen(disk_path);
 if(Sfile_str(img_path, img_dir_path, 0)<=0)
   {ret= -1; goto ex;}
 if(img_path[0] || img_path[strlen(img_path)-1]!='/')
   strcat(img_path,"/");
 img_name= img_path+strlen(img_path);

 while(1) { /* loop over directory content */
   stbuf_src= "";
   Linkitem_reset_stack(&own_link_stack, link_stack, 0);
   srcpt= disk_path;
   Xorriso_process_msg_queues(xorriso,0);
   ret= Dirseq_next_adr(dirseq,name,0); /* name is a pointer into disk_path */
   if(ret==0)
 break;
   if(ret<0) {
     sprintf(xorriso->info_text,"Failed to obtain next directory entry");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
     {ret= -1; goto ex;}
   }

   /* compare exclusions against disk_path resp. name */
   ret= Xorriso_path_is_excluded(xorriso, disk_path, 0); /* (is never param) */
   if(ret<0)
     {ret= -1; goto ex;}
   if(ret>0)
 continue;

   strcpy(img_name, name);
   if(Xorriso_much_too_long(xorriso, strlen(img_path), 0)<=0)
     {ret= 0; goto was_problem;}
   if(Xorriso_much_too_long(xorriso, strlen(srcpt), 0)<=0)
     {ret= 0; goto was_problem;}
   stbuf_src= srcpt;
   if(lstat(srcpt, &stbuf)==-1) {
cannot_lstat:;
     Xorriso_msgs_submit(xorriso, 0, srcpt, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text,
             "Cannot determine attributes of source file %s",
             Text_shellsafe(srcpt, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
     ret= 0; goto was_problem;
   }
   source_is_dir= 0;
   source_is_link= S_ISLNK(stbuf.st_mode);
   if(xorriso->do_follow_links && source_is_link) {
     /* Xorriso_hop_link checks for wide link loops */
     ret= Xorriso_hop_link(xorriso, srcpt, &own_link_stack, &hstbuf, 0);
     if(ret<0)
       goto was_problem;
     if(ret==1) {
       ret= Xorriso_resolve_link(xorriso, srcpt, link_target, 0);
       if(ret<=0)
         goto was_problem;
       srcpt= link_target;
       stbuf_src= srcpt;
       if(lstat(srcpt, &stbuf)==-1)
         goto cannot_lstat;
     } else {
       if(Xorriso_eval_problem_status(xorriso, 0, 1|2)<0)
         {ret= 0; goto was_problem;} 
     }
   } else if (S_ISLNK(stbuf.st_mode)) {
     ret= Xorriso_resolve_link(xorriso, srcpt, link_target, 1);
     if(ret<=0)
       goto was_problem;
   }
   do_not_dive= 0;
   if(S_ISDIR(stbuf.st_mode)) {
     source_is_dir= 1;
     if(dir_dev != stbuf.st_dev && !xorriso->do_follow_mount)
       do_not_dive= 1;
   }

   /* does a node exist with this name ? */
   node= NULL;
   ret= Xorriso_node_from_path(xorriso, volume, img_path, &node, 1);
   if(ret>0) {
     target_is_dir= LIBISO_ISDIR(node);
     target_is_split= 0;
     if(target_is_dir)
       target_is_split= Xorriso_is_split(xorriso, "", (void *) node, 1);

     if(!((target_is_dir && !target_is_split) && source_is_dir)) {
       Xorriso_process_msg_queues(xorriso,0);

       /* handle overwrite situation */;
       if(xorriso->do_overwrite==1 ||
          (xorriso->do_overwrite==2 && !(target_is_dir && !target_is_split))) {
         ret= Xorriso_rmi(xorriso, NULL, (off_t) 0, img_path, 1|8);
         if(ret<=0)
           goto was_problem;
         if(ret==3) {
           sprintf(xorriso->info_text, "User revoked adding of: %s",
                   Text_shellsafe(img_path, sfe, 0));
           Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
           ret= 0; goto was_problem;
         }
         node= NULL;
       } else {
         Xorriso_msgs_submit(xorriso, 0, srcpt, 0, "ERRFILE", 0);
         sprintf(xorriso->info_text,
     "While grafting %s : file object exists and may not be overwritten by %s",
             Text_shellsafe(img_path,sfe,0), Text_shellsafe(stbuf_src,sfe2,0));
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
         ret= 0; goto was_problem;
       }
     }
   }

   if(node==NULL) {
     if(S_ISLNK(stbuf.st_mode)) {

       /* ??? NG : A80107 : is this solved now ? */
       /* <<< One should rather change libisofs so that iso_tree_add_node()
              adds a disk_link as RR link, if RR is enabled */

       ret= iso_tree_add_new_symlink(dir, img_name, link_target, &iso_symlink);
       node= (IsoNode *) iso_symlink;
       if(ret>0) {
         ret= Xorriso_transfer_properties(xorriso, &stbuf, node, 0);
         if(ret<=0)
           goto was_problem;
       } else {
         Xorriso_report_iso_error(xorriso, stbuf_src, ret,
                             "Cannot create symbolic link", 0, "FAILURE", 1|2);
         {ret= 0; goto was_problem;}
       }
     } else {
       ret= Xorriso_tree_graft_node(xorriso, volume, dir, srcpt, img_name,
                                    "", img_path, (off_t) 0, (off_t) 0,
                                    &node, 0);
     }
   }
   if(node==NULL) {
     Xorriso_process_msg_queues(xorriso,0);
     Xorriso_msgs_submit(xorriso, 0, stbuf_src, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text, "Grafting failed:  %s = %s",
             Text_shellsafe(img_path,sfe,0), Text_shellsafe(stbuf_src,sfe2,0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto was_problem;
   }

   xorriso->pacifier_count++;
   if((xorriso->pacifier_count%100)==0)
     Xorriso_pacifier_callback(xorriso, "files added", xorriso->pacifier_count,
                               xorriso->pacifier_total, "", 0);

   xorriso->volset_change_pending= 1;
   if(source_is_dir) {
     if(do_not_dive) {
       sprintf(xorriso->info_text, "Did not follow mount point : %s",
               Text_shellsafe(disk_path, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     } else {
       ret= Xorriso_add_tree(xorriso, (IsoDir *) node,
                             img_path, disk_path, own_link_stack, 1|(flag&2));
     }
     if(ret<=0)
       goto was_problem;
   }

 continue; /* regular bottom of loop */
was_problem:;
   was_failure= 1;
   fret= Xorriso_eval_problem_status(xorriso, ret, 1|2);
   if(fret<0)
     goto ex;
 }

 ret= 1;
ex:

#ifndef Xorriso_fat_local_meM
 if(sfe!=NULL)
   free(sfe);
 if(sfe2!=NULL)
   free(sfe2);
 if(disk_path!=NULL)
   free(disk_path);
 if(img_path!=NULL)
   free(img_path);
 if(link_target!=NULL)
   free(link_target);
#endif /* ! Xorriso_fat_local_meM */

 Xorriso_process_msg_queues(xorriso,0);
 Linkitem_reset_stack(&own_link_stack, link_stack, 0);
 Dirseq_destroy(&dirseq, 0);
 if(ret<=0)
   return(ret);
 return(!was_failure);
}


/* @param flag bit0= cut_out mode : base on leaf parent directory
*/
int Xorriso_copy_implicit_properties(struct XorrisO *xorriso, IsoDir *dir,
           char *full_img_path, char *img_path, char *full_disk_path, int flag)
{
 int ret, nfic, nic, nfdc, d, i;
 char nfi[SfileadrL], ni[SfileadrL], nfd[SfileadrL], *cpt;
 char sfe[5*SfileadrL];
 struct stat stbuf;

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, full_img_path, nfi,
                                 1|2);
 if(ret<=0)
   return(ret);
 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, img_path, ni, 1|2);
 if(ret<=0)
   return(ret);
 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, full_disk_path, nfd,
                                 1|2|4);
 if(ret<=0)
   return(ret);
 nfic= Sfile_count_components(nfi, 0);
 nic= Sfile_count_components(ni, 0);
 nfdc= Sfile_count_components(nfd, 0);
 d= nfic-(flag&1)-nic;
 if(d<0)
   return(-1);
 if(d>nfdc)
   return(0);
 for(i= 0; i<d; i++) {
   cpt= strrchr(nfd, '/');
   if(cpt==NULL)
     return(-1); /* should not happen */
   *cpt= 0;
 }
 if(nfd[0]==0)
   strcpy(nfd, "/");
 if(stat(nfd, &stbuf)==-1)
   return(0);
 Xorriso_transfer_properties(xorriso, &stbuf, (IsoNode *) dir,
                             ((flag&1) && d==0));
 sprintf(xorriso->info_text,
         "Copied properties for %s", Text_shellsafe(ni, sfe, 0));
 sprintf(xorriso->info_text+strlen(xorriso->info_text),
         " from %s", Text_shellsafe(nfd, sfe, 0));
 if(!((flag&1) && d==0))
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 return(1);
}


/* @param bit0= copy link target properties rather than link properties
          bit1= give directory x-permission where is r-permission
*/
int Xorriso_copy_properties(struct XorrisO *xorriso,
                            char *disk_path, char *img_path, int flag)
{
 int ret;
 IsoNode *node;
 struct stat stbuf;

 ret= Xorriso_get_node_by_path(xorriso, img_path, NULL, &node, 0);
 if(ret<=0)
   return(ret);
 if(lstat(disk_path, &stbuf)==-1)
   return(0);
 Xorriso_transfer_properties(xorriso, &stbuf, node, (flag&2)>>1);
 xorriso->volset_change_pending= 1;
 return(1);
}


/* @param boss_iter Opaque handle to be forwarded to actions in ISO image
                    Set to NULL if calling this function from outside ISO world
   @param flag bit0= mkdir: graft in as empty directory, not as copy from disk
               bit1= do not report added files
               bit2= -follow, -not_*: this is not a command parameter
               bit3= use offset and cut_size for cut_out_node
               bit4= return 3 on rejection by exclusion or user
               bit5= if directory then do not add sub tree
               bit7= no special handling of split file directories
   @return <=0 = error , 1 = added simple node , 2 = added directory ,
                         3 = rejected 
*/
int Xorriso_graft_in(struct XorrisO *xorriso, void *boss_iter, 
                     char *disk_path, char *img_path,
                     off_t offset, off_t cut_size, int flag)
{
 IsoImage *volume;
 char path[SfileadrL], *apt, *npt, *cpt, sfe[5*SfileadrL], sfe2[5*SfileadrL];
 char *disk_path_pt, resolved_disk_path[SfileadrL];
 IsoDir *dir, *hdir;
 IsoNode *node;
 int done= 0, is_dir= 0, l, ret, target_is_dir, source_is_dir, resolve_link= 0;
 int target_is_split;
 struct stat stbuf;

 ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&4));
 if(ret<0)
   return(ret);
 if(ret>0)
   return(3*!!(flag&16));

 for(cpt= img_path; 1; cpt++) {
   cpt= strstr(cpt,"/.");
   if(cpt==NULL)
 break;
   if(cpt[2]=='.') {
     if(cpt[3]=='/' || cpt[3]==0)
 break;
   } else if(cpt[2]=='/' || cpt[2]==0)
 break;
 }
 if(cpt!=NULL) {
   Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,
         "Unsupported relative addressing in iso_rr_path %s (disk: %s)",
         Text_shellsafe(img_path, sfe, 0), Text_shellsafe(disk_path, sfe2, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);

 strncpy(path, img_path, sizeof(path)-1);
 path[sizeof(path)-1]= 0;
 apt= npt= path;

 if(!(flag&1)) {
   ret= lstat(disk_path, &stbuf);
   if(ret!=-1) {
     if(S_ISDIR(stbuf.st_mode))
       is_dir= 1;
     else if((stbuf.st_mode&S_IFMT)==S_IFLNK &&
             (xorriso->do_follow_links ||
              (xorriso->do_follow_param && !(flag&4)))) {
       resolve_link= 1;
       ret= stat(disk_path, &stbuf);
       if(ret!=-1) {
         if(S_ISDIR(stbuf.st_mode))
           is_dir= 1;
       }
     }
   }
   if(ret == -1) {
     Xorriso_process_msg_queues(xorriso,0);
     Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text,
            "Cannot determine attributes of source file %s",
            Text_shellsafe(disk_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
     return(0);
   }
   if(S_ISDIR(stbuf.st_mode)) {
     is_dir= 1;
   } else {
     l= strlen(img_path);
     if(l>0)
       if(img_path[l-1]=='/')
         l= 0;
     if(l==0) {
       Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
       sprintf(xorriso->info_text,
         "Source '%s' is not a directory. Target '%s' would be.",
         Text_shellsafe(disk_path, sfe, 0), Text_shellsafe(img_path, sfe2, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       return(0);
     }
   }
 }

 dir= iso_image_get_root(volume);
 if(dir==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "While grafting '%s' : no root node available", img_path);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(0);
 }
 for(npt= apt; !done; apt= npt+1) {
   npt= strchr(apt, '/');
   if(npt==NULL) {
     npt= apt+strlen(apt);
     done= 1;
   } else
     *npt= 0;
   if(*apt==0) {
     *apt= '/';
     apt++;
     if(done)
       goto attach_source;
 continue;
   }
   source_is_dir= (is_dir || (flag&1) || !done);
   ret= Xorriso_node_from_path(xorriso, volume, path, &node, 1);
   if(ret>0) {
     target_is_dir= LIBISO_ISDIR(node);

     target_is_split= 0;
     if(target_is_dir && !(flag&128)) 
       target_is_split= Xorriso_is_split(xorriso, "", (void *) node, 1);

     if(!((target_is_dir && !target_is_split) && source_is_dir)) {
       Xorriso_process_msg_queues(xorriso,0);

       /* handle overwrite situation */;
       if(xorriso->do_overwrite==1 ||
          (xorriso->do_overwrite==2 && !(target_is_dir && !target_is_split))) {
         ret= Xorriso_rmi(xorriso, boss_iter, (off_t) 0, path, 1|8);
         if(ret<=0)
           return(ret);
         if(ret==3) {
           sprintf(xorriso->info_text, "User revoked adding of: %s",
                   Text_shellsafe(disk_path, sfe, 0));
           Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
           return(3*!!(flag&16));
         }
         node= NULL;
         goto handle_path_node;
       }

       Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
       sprintf(xorriso->info_text,
              "While grafting '%s' : '%s' exists and may not be overwritten",
              img_path, path);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       return(0);
     }
     dir= (IsoDir *) node;
   }

handle_path_node:;
   if(node==NULL && source_is_dir) { /* make a directory */
     ret= iso_tree_add_new_dir(dir, apt, &hdir);
     if(ret<0) {
       Xorriso_process_msg_queues(xorriso,0);
       Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
       Xorriso_report_iso_error(xorriso, img_path, ret,
                                "Cannot create directory", 0, "FAILURE", 1);
       sprintf(xorriso->info_text,
               "While grafting '%s' : could not insert '%s'", img_path, path);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       return(0);
     }
     dir= hdir;
     xorriso->volset_change_pending= 1;
     iso_node_set_ctime((IsoNode *) dir, time(NULL));
     iso_node_set_uid((IsoNode *) dir, geteuid());
     iso_node_set_gid((IsoNode *) dir, getegid());

     if(disk_path!=NULL && !done)
       Xorriso_copy_implicit_properties(xorriso, dir, img_path, path, disk_path,
                                       !!(flag&8));

   }
   if(done) {
attach_source:;
     if(flag&1) {
       /* directory node was created above */;

     } else if(is_dir) {
       Xorriso_transfer_properties(xorriso, &stbuf, (IsoNode *) dir, 0);
       if(!(flag&32)) {
         ret= Xorriso_add_tree(xorriso, dir, img_path, disk_path, NULL,
                               flag&2);
         if(ret<=0)
           return(ret);
       }
     } else {
       if(resolve_link) {
         ret= Xorriso_resolve_link(xorriso, disk_path, resolved_disk_path, 0);
         if(ret<=0)
           return(ret);
         disk_path_pt= resolved_disk_path;
       } else
         disk_path_pt= disk_path;

       ret= Xorriso_tree_graft_node(xorriso, volume, dir, disk_path_pt, apt,
                                    disk_path, img_path,
                                    offset, cut_size, &node, flag&8);
       if(ret<=0) {
         sprintf(xorriso->info_text, "Grafting failed:  %s = %s",
             Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
         return(0);
       }
       xorriso->volset_change_pending= 1;
       iso_node_set_name(node, apt);

       xorriso->pacifier_count++;
       if(xorriso->pacifier_count%100 && !(flag&2))
         Xorriso_pacifier_callback(xorriso, "files added",
                                   xorriso->pacifier_count,
                                   xorriso->pacifier_total, "", 0);
     }
   } else
     *npt= '/';
 }
 Xorriso_process_msg_queues(xorriso,0);
 return(1+!!is_dir);
}


/* @param flag bit0= -follow: disk_path is not a command parameter
*/
int Xorriso_cut_out(struct XorrisO *xorriso, char *disk_path,
                off_t startbyte, off_t bytecount, char *iso_rr_path, int flag)
{
 int ret;
 char eff_source[SfileadrL], eff_dest[SfileadrL], sfe[SfileadrL*5];
 struct stat stbuf;

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, disk_path, eff_source,
                                 2|4);
 if(ret<=0)
   return(ret);
 ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&1));
 if(ret!=0)
   return(0);

 if(lstat(eff_source, &stbuf)==-1) {
   Xorriso_msgs_submit(xorriso, 0, eff_source, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text, "-cut_out: Cannot determine type of %s",
           Text_shellsafe(eff_source, sfe, 0)); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }

 if((stbuf.st_mode&S_IFMT) == S_IFLNK) {
   if(!(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&1))))
     goto unsupported_type;
   if(stat(eff_source, &stbuf)==-1) {
     Xorriso_msgs_submit(xorriso, 0, eff_source, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text,
             "-cut_out: Cannot determine link target type of %s",
             Text_shellsafe(eff_source, sfe, 0)); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
     return(0);
   }
 }
 if(S_ISREG(stbuf.st_mode)) {
   if(stbuf.st_size<startbyte) {
     Xorriso_msgs_submit(xorriso, 0, eff_source, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text,
             "-cut_out: Byte offset %.f larger than file size %.f",
             (double) startbyte, (double) stbuf.st_size); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "SORRY", 0);
     return(0);
   }
 } else {
unsupported_type:;
   Xorriso_msgs_submit(xorriso, 0, eff_source, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text, "-cut_out: Unsupported file type (%s) with %s",
           Ftypetxt(stbuf.st_mode, 0), Text_shellsafe(eff_source, sfe, 0)); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, iso_rr_path, eff_dest,
                                 2);
 if(ret<=0)
   return(ret);

 ret= Xorriso_graft_in(xorriso, NULL, eff_source, eff_dest,
                       startbyte, bytecount, 8);
 return(ret);
}


/* @param flag bit0= in_node is valid, do not resolve img_path
               bit1= test mode: print DEBUG messages
   @return  <0 = error,
             0 = surely not identical regular files ,
             1 = surely identical
             2 = potentially depending on unknown disk file (e.g. -cut_out)
*/
int Xorriso_restore_is_identical(struct XorrisO *xorriso, void *in_node,
                                 char *img_path, char *disk_path,
                                 char type_text[5], int flag)
{
 int ret;
 unsigned int fs_id;
 dev_t dev_id;
 ino_t ino_id;
 uint32_t dummy;
 IsoStream *stream;
 IsoImage *volume;
 IsoNode *node;
 struct stat stbuf;

 memset(type_text, 0, 5);
 if(!xorriso->volset_change_pending)
   return(0);
 if(flag&1) {
   node= (IsoNode *) in_node;
 } else {
   ret= Xorriso_get_volume(xorriso, &volume, 0);
   if(ret<=0)
     return(-1);
   ret= Xorriso_node_from_path(xorriso, volume, img_path, &node, 1);
   if(ret<=0)
     return(-1);
 }

 ret= iso_node_get_old_image_lba(node, &dummy, 0);
 if(ret!=0)
   return(0);
 if(!LIBISO_ISREG(node))
   return(0);
 stream= iso_file_get_stream((IsoFile *) node);
 memcpy(type_text, stream->class->type, 4);
 iso_stream_get_id(stream, &fs_id, &dev_id, &ino_id);
 if(flag&2) {
   sprintf(xorriso->info_text, "%s : fs=%d  dev=%.f  ino=%.f  (%s)",
           img_path, fs_id, (double) dev_id, (double) ino_id, type_text);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 }
 ret= stat(disk_path, &stbuf);
 if(ret==-1)
   return(0);
 if(flag&2) {
   sprintf(xorriso->info_text, "%s :       dev=%.f  ino=%.f",
           disk_path, (double) stbuf.st_dev, (double) stbuf.st_ino);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 }
 if(fs_id!=1)
   return(2);

 /* >>> obtain underlying dev_t ino_t of type "cout" */;

 if(strcmp(type_text, "fsrc")!=0)
   return(2);
 if(stbuf.st_dev==dev_id && stbuf.st_ino==ino_id)
   return(1);
 return(0);
}


/* @param flag bit0= minimal transfer: access permissions only
               bit1= keep directory open: keep owner, allow rwx for owner
                     and push directory onto xorriso->perm_stack
*/
int Xorriso_restore_properties(struct XorrisO *xorriso, char *disk_path,
                                IsoNode *node, int flag)
{
 int ret, is_dir= 0;
 mode_t mode;
 uid_t uid;
 gid_t gid;
 struct utimbuf utime_buffer;
 char sfe[5*SfileadrL];
 struct stat stbuf;

 ret= lstat(disk_path, &stbuf);
 if(ret==-1) {
   sprintf(xorriso->info_text,
           "Cannot obtain properties of disk file %s",
           Text_shellsafe(disk_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }
 uid= stbuf.st_uid;

 is_dir= S_ISDIR(stbuf.st_mode);
 mode= iso_node_get_permissions(node);
 if(is_dir && (flag&2)) {
   ret= Xorriso_fake_stbuf(xorriso, "", &stbuf, &node, 1);
   if(ret<=0)
     return(0);
   ret= Permstack_push(&(xorriso->perm_stack), disk_path, &stbuf, 0);
   if(ret<=0) {
     Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
     strcpy(xorriso->info_text,
            "Cannot memorize permissions for disk directory");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
     return(-1);
   }
   mode|= S_IRUSR|S_IWUSR|S_IXUSR;
 }
 ret= chmod(disk_path, mode);
 if(ret==-1) {
   sprintf(xorriso->info_text,
           "Cannot change access permissions of disk file %s",
           Text_shellsafe(disk_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }
 if(flag&1)
   return(1);

 gid= iso_node_get_gid(node);
 if(!(S_ISDIR(stbuf.st_mode) && (flag&2)))
   uid= iso_node_get_uid(node);
 chown(disk_path, uid, gid); /* don't complain if it fails */
 utime_buffer.actime= iso_node_get_atime(node);
 utime_buffer.modtime= iso_node_get_mtime(node);
 ret= utime(disk_path,&utime_buffer);
 if(ret==-1) {
   sprintf(xorriso->info_text,
           "Cannot change atime, mtime of disk file %s",
           Text_shellsafe(disk_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }
 return(1);
}


/* @param flag
               bit1= minimal transfer: access permissions only
               bit2= keep directory open: keep owner, allow rwx for owner
                     push to xorriso->perm_stack
*/
int Xorriso_restore_implicit_properties(struct XorrisO *xorriso,
          char *full_disk_path, char *disk_path, char *full_img_path, int flag)
{
 int ret, nfic, ndc, nfdc, d, i;
 char nfi[SfileadrL], nd[SfileadrL], nfd[SfileadrL], *cpt;
 char sfe[5*SfileadrL];
 struct stat stbuf;
 IsoNode *node;

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, full_disk_path, nfd,
                                 1|2|4);
 if(ret<=0)
   return(ret);
 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, disk_path, nd, 1|2);
 if(ret<=0)
   return(ret);
 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, full_img_path, nfi,
                                 1|2);
 if(ret<=0)
   return(ret);
 nfdc= Sfile_count_components(nfd, 0);
 ndc= Sfile_count_components(nd, 0);
 nfic= Sfile_count_components(nfi, 0);
 d= nfdc-ndc;
 if(d<0)
   return(-1);
 if(d>nfic)
   return(0);
 for(i= 0; i<d; i++) {
   cpt= strrchr(nfi, '/');
   if(cpt==NULL)
     return(-1); /* should not happen */
   *cpt= 0;
 }
 if(nfi[0]==0)
   strcpy(nfi, "/");
 ret= Xorriso_fake_stbuf(xorriso, nfi, &stbuf, &node, 0);
 if(ret<=0)
   return(0);
 ret= Xorriso_restore_properties(xorriso, nd, node, ((flag>>1)&3));
 if(ret<=0)
   return(ret);
 sprintf(xorriso->info_text,
         "Restored properties for %s", Text_shellsafe(nd, sfe, 0));
 sprintf(xorriso->info_text+strlen(xorriso->info_text),
         " from %s", Text_shellsafe(nfi, sfe, 0));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 return(1);
}


/* @param flag bit0= Minimal transfer: access permissions only
               bit1= offset and bytes is valid for writing to regular file
               bit2= This is not a parameter. Do not report if ignored
               bit3= do not restore properties
               bit4= issue pacifier messages with long lasting copying
   @return <0 severe error , 0 failure , 1 success ,
           2 regularly not installed (disallowed device, UNIX domain socket)
*/
int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
                              char *img_path, char *disk_path,
                              off_t offset, off_t bytes, int flag)
{
 int ret= 0, write_fd= -1, wanted, wret, open_flags;
 char *what= "[unknown filetype]", sfe[5*SfileadrL], sfe2[5*SfileadrL];
 char buf[32*1024], type_text[5], temp_path[SfileadrL];
 char *link_target, *open_path_pt;
 off_t todo, size, seek_ret, last_p_count= 0;
 void *data_stream= NULL;
 mode_t mode;
 dev_t dev= 0;
 struct stat stbuf;
 struct utimbuf utime_buffer;

 if(LIBISO_ISDIR(node)) {
   what= "directory";
   ret= mkdir(disk_path, 0777);

 } else if(LIBISO_ISREG(node)) {
   what= "regular file";
   ret= Xorriso_iso_file_open(xorriso, img_path, (void *) node, &data_stream,
                              1);
   if(ret<=0)
     goto ex;
   open_path_pt= disk_path;
   ret= stat(open_path_pt, &stbuf);
   if(flag&2) {
     if(ret!=-1 && !S_ISREG(stbuf.st_mode)) {
       sprintf(xorriso->info_text,
      "Restore offset demanded. But filesystem path leads to non-data file %s",
               Text_shellsafe(disk_path, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
       goto cannot_restore;
     }
   } else {
     /* If source and target are the same disk file then do not copy content */
     ret= Xorriso_restore_is_identical(xorriso, (void *) node, img_path,
                                       disk_path, type_text, 1);
     if(ret<0)
       goto ex;
     if(ret==1) {
       /* preliminarily emulate touch (might get overridden later) */
       utime_buffer.actime= stbuf.st_atime;
       utime_buffer.modtime= time(0);
       utime(disk_path,&utime_buffer);
       goto restore_properties;
     }
     if(ret==2) {
       /* Extract to temporary file and rename only after copying */
       ret= Xorriso_make_tmp_path(xorriso, disk_path, temp_path, &write_fd, 0);
       if(ret<=0)
         goto ex;
       open_path_pt= temp_path;
     }
   }
   if(write_fd==-1) {
     open_flags= O_WRONLY|O_CREAT;
     if(offset==0 || !(flag&2))
       open_flags|= O_EXCL;
     write_fd= open(open_path_pt, open_flags, S_IRUSR|S_IWUSR);
     if(write_fd==-1)
       goto cannot_restore;
   }
   todo= size= iso_file_get_size((IsoFile *) node);
   if(flag&2) {
     if(bytes<size)
       todo= size= bytes;
     seek_ret= lseek(write_fd, offset, SEEK_SET);
     if(seek_ret == -1) {
       sprintf(xorriso->info_text,
               "Cannot address byte %.f in filesystem path %s",
               (double) offset, Text_shellsafe(open_path_pt, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
       goto cannot_restore;
     }
   }
   while(todo>0) {
     wanted= sizeof(buf);
     if(wanted>todo)
       wanted= todo;
     ret= Xorriso_iso_file_read(xorriso, data_stream, buf, wanted, 0);
     if(ret<=0)
   break;
     wret= write(write_fd, buf, ret);
     if(wret>=0) {
       todo-= wret;
       xorriso->pacifier_byte_count+= wret;
       if((flag&16) &&
          xorriso->pacifier_byte_count - last_p_count >= 128*1024) {
         Xorriso_pacifier_callback(xorriso, "files restored",
                             xorriso->pacifier_count,
                             xorriso->pacifier_total, "", 2|4);
         last_p_count= xorriso->pacifier_byte_count;
       }
     }
     if(wret != ret) {
       sprintf(xorriso->info_text,
               "Cannot write all bytes to disk filesystem path %s",
               Text_shellsafe(open_path_pt, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
   break;
     }
   }  
   close(write_fd);
   write_fd= -1;
   Xorriso_iso_file_close(xorriso, &data_stream, 0);
   data_stream= NULL;
   if(temp_path==open_path_pt) {
     ret= rename(temp_path, disk_path);
     if(ret==-1) {
       sprintf(xorriso->info_text,
               "Cannot rename temporary path %s to final disk path %s",
               Text_shellsafe(temp_path, sfe, 0),
               Text_shellsafe(disk_path, sfe2, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
       unlink(temp_path);
       ret= 0; goto ex;
     }
   }
   ret= (todo==0);

 } else if(LIBISO_ISLNK(node)) {
   what= "symbolic link";
   link_target= (char *) iso_symlink_get_dest((IsoSymlink *) node);
   ret= symlink(link_target, disk_path);

 } else if(LIBISO_ISCHR(node)) {
   what= "character device";
   if(xorriso->allow_restore!=2) {
ignored:;
     if(!(flag&4)) {
       sprintf(xorriso->info_text, "Ignored file type: %s %s = %s", what,
             Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     }
     {ret= 2; goto ex;}
   }
   mode= S_IFCHR | 0777;
   ret= Xorriso_node_get_dev(xorriso, node, img_path, &dev, 0);
   if(ret<=0)
     goto ex;
   if(dev == (dev_t) 1) {
probably_damaged:;
     sprintf(xorriso->info_text,
            "Most probably damaged device file not restored: mknod %s %s 0 1",
            Text_shellsafe(disk_path, sfe, 0), LIBISO_ISCHR(node) ? "c" : "b");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
     ret= 0; goto ex;
   }
   ret= mknod(disk_path, mode, dev);

 } else if(LIBISO_ISBLK(node)) {
   what= "block device";
   if(xorriso->allow_restore!=2)
     goto ignored;
   mode= S_IFBLK | 0777;
   ret= Xorriso_node_get_dev(xorriso, node, img_path, &dev, 0);
   if(ret<=0)
     goto ex;
   if(dev == (dev_t) 1)
     goto probably_damaged;
   ret= mknod(disk_path, mode, dev);

 } else if(LIBISO_ISFIFO(node)) {
   what= "named pipe";
   mode= S_IFIFO | 0777;
   ret= mknod(disk_path, mode, dev);

 } else if(LIBISO_ISSOCK(node)) {
   what= "unix socket";
   /* Restoring a socket file is not possible. One rather needs to restart
      the service which temporarily created the socket. */
   goto ignored;

 } else {
   sprintf(xorriso->info_text, "Cannot restore file type '%s'", what);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   ret= 0; goto ex;
 }
 if(ret==-1) {
cannot_restore:;
   sprintf(xorriso->info_text,
           "Cannot restore %s to disk filesystem: %s",
           what, Text_shellsafe(img_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   ret= 0; goto ex;
 }

restore_properties:;
 if((flag&8) || LIBISO_ISLNK(node))
   ret= 1;
 else
   ret= Xorriso_restore_properties(xorriso, disk_path, node, flag&1);
ex:;
 if(write_fd>0)
   close(write_fd);
 if(data_stream!=NULL)
   Xorriso_iso_file_close(xorriso, &data_stream, 0);
 return(ret);
}


/* Handle overwrite situation in disk filesystem.
   @param node  intended source of overwriting or NULL
   @param flag
               bit4= return 3 on rejection by exclusion or user
*/
int Xorriso_restore_overwrite(struct XorrisO *xorriso,
                              IsoNode *node, char *img_path,
                              char *path, char *nominal_path,
                              struct stat *stbuf, int flag)
{
 int ret;
 char sfe[5*SfileadrL], sfe2[5*SfileadrL], type_text[5];

 Xorriso_process_msg_queues(xorriso,0);
 if(xorriso->do_overwrite==1 ||
    (xorriso->do_overwrite==2 && !S_ISDIR(stbuf->st_mode))) {

   ret= Xorriso_restore_is_identical(xorriso, (void *) node, img_path,
                                     path, type_text, (node!=NULL));
   if(ret<0)
     return(ret);
   if(ret>0) /* will be handled properly by restore functions */
     ret= Xorriso_reassure_restore(xorriso, path, 8);
   else
     ret= Xorriso_rmx(xorriso, (off_t) 0, path, 8);
   if(ret<=0)
     return(ret);
   if(ret==3) {
     sprintf(xorriso->info_text, "User revoked restoring of (ISO) file: %s",
             Text_shellsafe(img_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     return(3*!!(flag&16));
   }
   return(1);
 }
 Xorriso_msgs_submit(xorriso, 0, nominal_path, 0, "ERRFILE", 0);
 sprintf(xorriso->info_text,
         "While restoring %s : %s exists and may not be overwritten",
         Text_shellsafe(nominal_path, sfe, 0), strcmp(nominal_path, path)==0 ?
                                "file object" : Text_shellsafe(path, sfe2, 0));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
 return(0);
}


/*
   @param flag bit0= offset and bytes is valid for writing to regular file
               bit1= do not report copied files
               bit2= -follow, -not_*: this is not a command parameter
               bit3= keep directory open: keep owner, allow rwx for owner
               bit6= this is a copy action: do not fake times and ownership
   @return <=0 = error , 1 = added leaf file object , 2 = added directory ,
*/
int Xorriso_restore_disk_object(struct XorrisO *xorriso,
                                char *img_path, IsoNode *node,
                                char *disk_path,
                                off_t offset, off_t bytes, int flag)
{
 int ret, i, split_count= 0, partno, total_parts, leaf_is_split= 0;
 off_t total_bytes, was_byte_count;
 char *part_name, part_path[SfileadrL], *img_path_pt;
 char sfe[5*SfileadrL], sfe2[5*SfileadrL];
 IsoImage *volume;
 IsoNode *part_node, *first_part_node= NULL;
 struct SplitparT *split_parts= NULL;
 struct stat stbuf;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   goto ex;

 was_byte_count= xorriso->pacifier_byte_count;
  
 if(LIBISO_ISDIR(node) && xorriso->do_concat_split)
   leaf_is_split= Xorriso_identify_split(xorriso, img_path, node,
                                      &split_parts, &split_count, &stbuf, 1|2);
 if(leaf_is_split) {
   /* map all files in directory img_path into regular file disk_path */

   for(i=0 ; i<split_count; i++) {
     Splitparts_get(split_parts, i, &part_name, &partno, &total_parts,
                    &offset, &bytes, &total_bytes, 0);

     strcpy(part_path, img_path);
     if(Sfile_add_to_path(part_path, part_name, 0)<=0) {
       Xorriso_much_too_long(xorriso, strlen(img_path)+strlen(part_name)+1, 2);
       goto restoring_failed;
     }
     ret= Xorriso_node_from_path(xorriso, volume, part_path, &part_node, 0);
     if(ret<=0)
       goto restoring_failed;
     if(i==0)
       first_part_node= part_node;
     if(offset+bytes>total_bytes)
             bytes= total_bytes-offset;
     ret= Xorriso_tree_restore_node(xorriso, part_node, part_path, disk_path,
                         offset, bytes,
                         (!!(flag&64)) | 2 | (flag&4) | 8 | ( 16 * !(flag&2)));
     if(ret<=0)
       goto restoring_failed;
   }
   if(first_part_node!=NULL)
     Xorriso_restore_properties(xorriso, disk_path, first_part_node,
                                !!(flag&64));
   goto went_well;
 }

#ifdef Osirrox_not_yeT

 if(resolve_link) {
   ret= Xorriso_resolve_link(xorriso, disk_path, resolved_disk_path, 0);
   if(ret<=0)
     goto ex;
   disk_path_pt= resolved_disk_path;
 } else

#endif /* Osirrox_not_yeT */

   img_path_pt= img_path;

 ret= Xorriso_tree_restore_node(xorriso, node, img_path_pt, disk_path,
             offset, bytes,
             (flag&(4|8)) | (!!(flag&64)) | ((flag&1)<<1) | ( 16 * !(flag&2)));
 if(ret>0 && (flag&8))
   ret= Xorriso_restore_properties(xorriso, disk_path, node, 2 | !!(flag&64));
 if(ret<=0) {
restoring_failed:;
   sprintf(xorriso->info_text, "Restoring failed:  %s = %s",
           Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }
 if(ret==2)
   {ret= 3; goto ex;}
went_well:;
 xorriso->pacifier_count++;
 if(!(flag&2))
   Xorriso_pacifier_callback(xorriso, "files restored",
                             xorriso->pacifier_count,
                             xorriso->pacifier_total, "", 4);
 ret= 1;
ex:;
 if(split_parts!=NULL) 
   Splitparts_destroy(&split_parts, split_count, 0);
 return(ret);
}


/* @param flag bit0= source is a directory and not to be restored as split file
   @return <=0 error , 1=collision handled , 2=no collision , 3=revoked by user
*/
int Xorriso_handle_collision(struct XorrisO *xorriso,
                             IsoNode *node, char *img_path,
                             char *disk_path, char *nominal_disk_path,
                             int *stbuf_ret, int flag)
{
 int ret, target_is_dir= 0, target_is_link= 0, stat_ret;
 struct stat target_stbuf, lt_stbuf;

 /* does a disk file exist with this name ? */
 *stbuf_ret= lstat(disk_path, &target_stbuf);

 if(*stbuf_ret==-1)
   return(2);

 target_is_link= S_ISLNK(target_stbuf.st_mode);
 if(target_is_link) {
   stat_ret= stat(disk_path, &lt_stbuf);
   if(stat_ret!=-1)
     target_is_dir= S_ISDIR(lt_stbuf.st_mode);
 } else {
   target_is_dir= S_ISDIR(target_stbuf.st_mode);
 }
 if(target_is_dir && (!target_is_link) && !(flag&1)) {
   strcpy(xorriso->info_text, "Attempt to replace DISK directory ");
   Text_shellsafe(nominal_disk_path,
                  xorriso->info_text+strlen(xorriso->info_text), 0);
   strcat(xorriso->info_text, " by ISO file ");
   Text_shellsafe(img_path, xorriso->info_text+strlen(xorriso->info_text), 0);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }

 if(!(target_is_dir && (flag&1))) {
   Xorriso_process_msg_queues(xorriso,0);
   ret= Xorriso_restore_overwrite(xorriso, node, img_path, disk_path,
                                  nominal_disk_path, &target_stbuf, 16);
   if(ret==3)
     return(3);
   if(ret<=0) 
     return(ret);
   *stbuf_ret= -1; /* It might still exist but will be handled properly */
 }
 return(1);
}


/* @param flag bit0= recursion is active
               bit1= do not report restored files
               bit6= this is a copy action: do not fake times and ownership
*/
int Xorriso_restore_tree(struct XorrisO *xorriso, IsoDir *dir,
                         char *img_dir_path, char *disk_dir_path,
                         off_t boss_mem,
                         struct LinkiteM *link_stack, int flag)
{
 IsoImage *volume;
 IsoNode *node;
 IsoDirIter *iter= NULL;
 IsoNode **node_array= NULL;
 int node_count, node_idx;
 int ret, source_is_dir, source_is_link, fret, was_failure= 0;
 int do_not_dive, source_is_split= 0, len_dp, len_ip, stbuf_ret, hflag, hret;
 char *name, *disk_name, *leaf_name, *srcpt, *stbuf_src= "";
 struct LinkiteM *own_link_stack;
 char *sfe= NULL, *sfe2= NULL;
 char *disk_path= NULL, *img_path= NULL, *link_target= NULL;
 off_t mem;
 struct PermiteM *perm_stack_mem;
 struct stat stbuf;

#ifdef NIX
 struct stat target_stbuf;
 target_is_dir;
#endif

 perm_stack_mem= xorriso->perm_stack;

 /* Avoiding large local memory objects in order to save stack space */
 sfe= malloc(5*SfileadrL);
 sfe2= malloc(5*SfileadrL);
 disk_path= malloc(2*SfileadrL);
 img_path= malloc(2*SfileadrL);
 link_target= malloc(SfileadrL);
 if(sfe==NULL || sfe2==NULL || disk_path==NULL || img_path==NULL ||
    link_target==NULL) {
   Xorriso_no_malloc_memory(xorriso, &sfe, 0);
   {ret= -1; goto ex;}
 }

 own_link_stack= link_stack;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   goto ex;

 stbuf_src= img_dir_path;
 node= (IsoNode *) dir;
 ret= Xorriso_fake_stbuf(xorriso, stbuf_src, &stbuf, &node, 1);
 if(ret<=0) {
   Xorriso_msgs_submit(xorriso, 0, disk_dir_path, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,"Cannot open as (ISO) source directory: %s",
           Text_shellsafe(img_dir_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }

#ifdef Osirrox_not_yeT

 dev_t dir_dev;
 dir_dev= stbuf.st_dev;

 if(S_ISLNK(stbuf.st_mode)) {
   if(!(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&1))))
     {ret= 2; goto ex;}
   stbuf_src= disk_dir_path;
   if(stat(disk_dir_path, &stbuf)==-1)
     goto cannot_open_dir;
   if(dir_dev != stbuf.st_dev &&
      !(xorriso->do_follow_mount || (xorriso->do_follow_param && !(flag&1))))
     {ret= 2; goto ex;}
 }

#endif /* Osirrox_not_yeT */

 if(!S_ISDIR(stbuf.st_mode)) {
   Xorriso_msgs_submit(xorriso, 0, disk_dir_path, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,"Is not a directory in ISO image: %s",
           Text_shellsafe(img_dir_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }

 mem= boss_mem;
 ret= Xorriso_findi_iter(xorriso, dir, &mem, &iter, &node_array, &node_count,
                         &node_idx, &node, 1|4);
 if(ret<=0)
   goto ex;

 if(Sfile_str(img_path, img_dir_path,0)<=0) {
much_too_long:;
   Xorriso_much_too_long(xorriso, SfileadrL, 2);
   {ret= 0; goto ex;}
 }
 if(img_path[0]==0 || img_path[strlen(img_path)-1]!='/')
   strcat(img_path,"/");
 name= img_path+strlen(img_path);
 if(Sfile_str(disk_path, disk_dir_path, 0)<=0)
   goto much_too_long;
 if(disk_path[0]==0 || disk_path[strlen(disk_path)-1]!='/')
   strcat(disk_path,"/");
 disk_name= disk_path+strlen(disk_path);

 len_dp= strlen(disk_path);
 len_ip= strlen(img_path);

 while(1) { /* loop over ISO directory content */
   stbuf_src= "";

#ifdef Osirrox_not_yeT

   Linkitem_reset_stack(&own_link_stack, link_stack, 0);

#endif

   srcpt= img_path;
   Xorriso_process_msg_queues(xorriso,0);
   ret= Xorriso_findi_iter(xorriso, dir, &mem, &iter, &node_array, &node_count,
                           &node_idx, &node, 0);
   if(ret<0)
     goto ex;
   if(ret==0 || xorriso->request_to_abort)
 break;
   leaf_name=  (char *) iso_node_get_name(node);
   if(Xorriso_much_too_long(xorriso, len_dp + strlen(leaf_name)+1, 0)<=0)
     {ret= 0; goto was_problem;}
   if(Xorriso_much_too_long(xorriso, len_ip + strlen(leaf_name)+1, 0)<=0)
     {ret= 0; goto was_problem;}
   /* name is a pointer into img_path */
   strcpy(name, leaf_name);
   strcpy(disk_name,  leaf_name);

   stbuf_src= srcpt;
   ret= Xorriso_fake_stbuf(xorriso, img_path, &stbuf, &node, 1);
   if(ret<=0)
     goto was_problem;
   source_is_dir= 0;
   source_is_link= S_ISLNK(stbuf.st_mode);

#ifdef Osirrox_not_yeT

   if(xorriso->do_follow_links && source_is_link) {
     /* Xorriso_hop_link checks for wide link loops */
     ret= Xorriso_hop_link(xorriso, srcpt, &own_link_stack, &hstbuf, 0);
     if(ret<0)
       goto was_problem;
     if(ret==1) {
       ret= Xorriso_resolve_link(xorriso, srcpt, link_target, 0);
       if(ret<=0)
         goto was_problem;
       srcpt= link_target;
       stbuf_src= srcpt;
       if(lstat(srcpt, &stbuf)==-1)
         goto cannot_lstat;
     } else {
       if(Xorriso_eval_problem_status(xorriso, 0, 1|2)<0)
         {ret= 0; goto was_problem;} 
     }
   } else if (S_ISLNK(stbuf.st_mode)) {
     ret= Xorriso_resolve_link(xorriso, srcpt, link_target, 1);
     if(ret<=0)
       goto was_problem;
   }

#endif /* Osirrox_not_yeT */

   do_not_dive= 0;
   if(S_ISDIR(stbuf.st_mode))
     source_is_dir= 1;
   source_is_split= 0;
   if(source_is_dir)
     source_is_split= Xorriso_is_split(xorriso, img_path, node, 1|2);
   if(source_is_split)
     do_not_dive= 1;
   ret= Xorriso_handle_collision(xorriso, node, img_path, disk_path, disk_path,
                              &stbuf_ret, (source_is_dir && !source_is_split));
   if(ret<=0 || ret==3)
     goto was_problem;

   if(stbuf_ret!=-1) { /* (Can only happen with directory) */
     Xorriso_auto_chmod(xorriso, disk_path, 0);
   } else {
     hflag= 4 | (flag & (2|64));
     if(source_is_dir && !do_not_dive)
       hflag|= 8; /* keep directory open for user */
     ret= Xorriso_restore_disk_object(xorriso, img_path, node, disk_path,
                                      (off_t) 0, (off_t) 0, hflag);
     if(ret<=0)
       goto was_problem;
   }
   if(source_is_dir && !do_not_dive) {
     ret= Xorriso_restore_tree(xorriso, (IsoDir *) node,
                                 img_path, disk_path, mem,
                                 own_link_stack, 1|(flag&2));
     /* eventually restore exact access permissions of directory */
     hret= Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso,
                     !!(flag&64));
     if(hret<=0 && hret<ret)
       ret= hret;
     if(ret<=0)
       goto was_problem;
   }

 continue; /* regular bottom of loop */
was_problem:;
   was_failure= 1;
   fret= Xorriso_eval_problem_status(xorriso, ret, 1|2);
   if(fret<0)
     goto ex;
   Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso, !!(flag&64));
 }

 ret= 1;
ex:
 Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso, !!(flag&64));
 if(sfe!=NULL)
   free(sfe);
 if(sfe2!=NULL)
   free(sfe2);
 if(disk_path!=NULL)
   free(disk_path);
 if(img_path!=NULL)
   free(img_path);
 if(link_target!=NULL)
   free(link_target);
 Xorriso_findi_iter(xorriso, dir, &mem, &iter, &node_array, &node_count,
                    &node_idx, &node, (1<<31));

 Xorriso_process_msg_queues(xorriso,0);

#ifdef Osirrox_not_yeT

 Linkitem_reset_stack(&own_link_stack, link_stack, 0);

#endif

 if(ret<=0)
   return(ret);
 return(!was_failure);
}


/*
   @param flag
           >>> bit0= mkdir: graft in as empty directory, not as copy from iso
               bit1= do not report copied files
               bit2= -follow, -not_*: this is not a command parameter
               bit3= use offset and cut_size for -paste_in
               bit4= return 3 on rejection by exclusion or user
               bit5= if directory then do not add sub tree
               bit6= this is a copy action: do not fake times and ownership
   @return <=0 = error , 1 = added leaf file object , 2 = added directory ,
                         3 = rejected 
*/
int Xorriso_restore(struct XorrisO *xorriso,  
                    char *img_path, char *disk_path,
                    off_t offset, off_t bytes, int flag)
{
 IsoImage *volume;
 char path[SfileadrL], *apt, *npt, sfe[5*SfileadrL];
 IsoNode *node= NULL;
 int done= 0, is_dir= 0, ret, source_is_dir, stbuf_ret, hret;
 int leaf_is_split= 0, source_is_split= 0, new_dir_made= 0;
 struct stat stbuf;
 struct PermiteM *perm_stack_mem;

#ifdef NIX
 struct stat target_stbuf;
 int target_is_dir;
#endif

 perm_stack_mem= xorriso->perm_stack;

 ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&4));
 if(ret<0)
   goto ex;
 if(ret>0)
   {ret= 3*!!(flag&16); goto ex;}

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   goto ex;

 strncpy(path, disk_path, sizeof(path)-1);
 path[sizeof(path)-1]= 0;
 apt= npt= path;

 if(!(flag&1)) {
   ret= Xorriso_fake_stbuf(xorriso, img_path, &stbuf, &node, 0);
   if(ret>0) {
     if(S_ISDIR(stbuf.st_mode))
       is_dir= 1;

#ifdef Osirrox_not_yeT
     else if((stbuf.st_mode&S_IFMT)==S_IFLNK &&
             (xorriso->do_follow_links ||
              (xorriso->do_follow_param && !(flag&4)))) {
       resolve_link= 1;
       ret= Xorriso_iso_lstat(xorriso, img_path, &stbuf, 1|2);
       if(ret!=-1) {
         if(S_ISDIR(stbuf.st_mode))
           is_dir= 1;
       }
     }
#endif /* Osirrox_not_yeT */

   } else {
     Xorriso_process_msg_queues(xorriso,0);
     Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
     sprintf(xorriso->info_text,
            "Cannot determine attributes of (ISO) source file %s",
            Text_shellsafe(img_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
     ret= 0; goto ex;
   }
   if(is_dir && xorriso->do_concat_split)
     leaf_is_split= Xorriso_is_split(xorriso, img_path, node, 1|2);
 }
 for(npt= apt; !done; apt= npt+1) {
   npt= strchr(apt, '/');
   if(npt==NULL) {
     npt= apt+strlen(apt);
     done= 1;
   } else
     *npt= 0;
   if(*apt==0) {
     *apt= '/';
     apt++;
     if(done)
       goto attach_source;
 continue;
   }
   source_is_dir= (is_dir || (flag&1) || !done);
   source_is_split= done && leaf_is_split;

   if((flag&8) && done) {

     /* ??? move down from Xorriso_paste_in() :
            check whether target does not exist or both are regular */;

   } else {
     ret= Xorriso_handle_collision(xorriso, node, img_path, path, disk_path,
                              &stbuf_ret, (source_is_dir && !source_is_split));
     if(ret<=0 || ret==3)
       goto ex;
   }

   new_dir_made= 0;
   if(stbuf_ret==-1 && (source_is_dir && !source_is_split)) {
                                                         /* make a directory */
     ret= mkdir(path, 0777);
     if(ret==-1) {
       Xorriso_process_msg_queues(xorriso,0);
       Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
       sprintf(xorriso->info_text,
              "While restoring '%s' : could not insert '%s'", disk_path, path);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
       {ret= 0; goto ex;}
     }
     if(!done) {
       /* keep rwx for the owner */
       Xorriso_restore_implicit_properties(xorriso, disk_path, path,
                                           img_path, 4);
     }
     new_dir_made= 1;
   } else if(source_is_dir && !source_is_split) {
     Xorriso_auto_chmod(xorriso, path, 0);
   }
   if(done) {
attach_source:;

     if(flag&1) {
       /* directory was created above */;

     } else if(is_dir && !source_is_split) {
       if(new_dir_made) /* keep open and push to Permstack */
         Xorriso_restore_properties(xorriso, disk_path, node, 2 | !!(flag&64));
       if(!(flag&32)) {
         ret= Xorriso_restore_tree(xorriso, (IsoDir *) node, img_path, path,
                                   (off_t) 0, NULL, flag&(2|64));
         if(ret<=0)
           goto ex;
         if(new_dir_made && !(flag&64))
           /* set timestamps which Permstack_pop() will not set */
           Xorriso_restore_properties(xorriso, disk_path, node, 2);
       }
     } else {
       ret= Xorriso_restore_disk_object(xorriso, img_path, node, path,
                                offset, bytes, (flag & (2|4|64)) | !!(flag&8));
       if(ret<=0)
         goto ex;
     }
   } else
     *npt= '/';
 }
 Xorriso_process_msg_queues(xorriso,0);
 ret= 1 + (is_dir && !leaf_is_split); 
ex:;
 /* restore exact access permissions of stacked paths */
 hret= Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso,
                     2 | !!(flag&64));
 if(hret<=0 && hret<ret)
   ret= hret;
 return(ret);
}


/* @param flag bit0= -follow, -not: disk_path is not a command parameter
*/
int Xorriso_paste_in(struct XorrisO *xorriso, char *disk_path,
                off_t startbyte, off_t bytecount, char *iso_rr_path, int flag)
{
 int ret;
 char eff_source[SfileadrL], eff_dest[SfileadrL], sfe[SfileadrL*5];
 struct stat stbuf;
 IsoNode *node;

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, disk_path, eff_dest,
                                 2|4);
 if(ret<=0)
   return(ret);
 ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&1));
 if(ret!=0)
   return(0);
 ret= stat(eff_dest, &stbuf);
 if(ret!=-1 && !S_ISREG(stbuf.st_mode)) {
   Xorriso_msgs_submit(xorriso, 0, eff_dest, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,
           "-paste_in: DISK file %s exists and is not a data file",
           Text_shellsafe(eff_source, sfe, 0)); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, iso_rr_path,
                                 eff_source, 2);
 if(ret<=0)
   return(ret);
 ret= Xorriso_fake_stbuf(xorriso, eff_source, &stbuf, &node, 4);
 if(ret<=0)
   return(0);
 if(!S_ISREG(stbuf.st_mode)) {
   Xorriso_msgs_submit(xorriso, 0, eff_dest, 0, "ERRFILE", 0);
   sprintf(xorriso->info_text, "-paste_in: ISO file %s is not a data file",
           Text_shellsafe(eff_source, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   return(0);
 }
 
 /* >>> eventually obtain parameters from file name */;

 ret= Xorriso_restore(xorriso, eff_source, eff_dest, startbyte, bytecount, 8);
 return(ret);
}


int Xorriso_process_msg_queues(struct XorrisO *xorriso, int flag)
{
 int ret, error_code= 0, os_errno= 0, count= 0, pass, imgid, tunneled;
 char severity[80];

 if(!xorriso->libs_are_started)
   return(1);
 for(pass= 0; pass< 2; pass++) {
   while(1) {
     tunneled= 0;
     if(pass==0)
       ret= iso_obtain_msgs("ALL", &error_code, &imgid,
                            xorriso->info_text, severity);
     else {
       ret= burn_msgs_obtain("ALL", &error_code, xorriso->info_text, &os_errno,
                             severity);
       if((error_code>=0x00030000 && error_code<0x00040000) ||
          (error_code>=0x00050000 && error_code<0x00060000))
         tunneled= -1; /* "libisofs:" */
       else if(error_code>=0x00060000 && error_code<0x00070000)
         tunneled= 1;  /* "libisoburn:" */
     }
     if(ret<=0)
   break;

     /* <<< tunneled MISHAP from libisoburn through libburn
            or well known error codes of MISHAP events
            With libburn-0.4.4 this is not necessary */
     if(error_code==0x5ff73 || error_code==0x3ff73 ||
        error_code==0x3feb9 || error_code==0x3feb2)
       strcpy(severity, "MISHAP");
     else if(error_code==0x51001)
       strcpy(severity, "ERRFILE");

     Xorriso_msgs_submit(xorriso, error_code, xorriso->info_text, os_errno, 
                         severity, ((pass+tunneled)+1)<<2);
     count++;
   }
 }
 if(xorriso->library_msg_direct_print && count>0) {
   sprintf(xorriso->info_text,"   (%d library messages repeated by xorriso)\n",
           count);
   Xorriso_info(xorriso, 0);
 }
 return(1);
}


/* @param flag bit0=short report form
               bit1=report about output drive
*/
int Xorriso_toc(struct XorrisO *xorriso, int flag)
{
 int num_sessions= 0, num_tracks= 0, lba= 0, nwa= -1, pmin, psec, pframe, ret;
 int track_count= 0, session_no, track_no, profile_no= -1, track_size;
 int last_track_start= 0, last_track_size= -1, num_data= 0, is_data= 0;
 int is_inout_drive= 0, drive_role, status, num_formats;
 int num_payload= 0, num_wasted= 0, num_nondata= 0;
 char profile_name[80],*respt,*devadr;
 struct burn_toc_entry toc_entry;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 enum burn_disc_status s;
 char mem_text[80];
 off_t start_byte= 0, num_free= 0, size;
 unsigned dummy;
 struct isoburn_toc_disc *disc= NULL;
 struct isoburn_toc_session **sessions;
 struct isoburn_toc_track **tracks;
 int image_blocks;
 char volume_id[33];
 struct burn_toc_entry next_toc_entry;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                               "on attempt to print Table Of Content", flag&2);
 if(ret<=0)
   return(0);

 respt= xorriso->result_line;

 if(strcmp(xorriso->indev, xorriso->outdev)==0)
   is_inout_drive= 1;
 if(flag&2)
   devadr= xorriso->outdev;
 else
   devadr= xorriso->indev;
 sprintf(respt, "Drive current: %s '%s'\n",
         (is_inout_drive ? "-dev" : (flag&2 ? "-outdev" : "-indev")),
         devadr);
 Xorriso_result(xorriso,0);
 sprintf(respt, "Drive type   : vendor '%s' product '%s' revision '%s'\n",
        dinfo[0].vendor, dinfo[0].product, dinfo[0].revision);
 if(!(flag&1))
   Xorriso_result(xorriso,0);
 
 sprintf(respt, "Media current: ");
 ret= burn_disc_get_profile(drive, &profile_no, profile_name);
 if (profile_no > 0 && ret > 0) {
   if (profile_name[0])
     sprintf(respt+strlen(respt), "%s", profile_name);
   else
     sprintf(respt+strlen(respt), "%4.4Xh", profile_no);
   drive_role= burn_drive_get_drive_role(drive);
   if(drive_role==2)
     sprintf(respt+strlen(respt), ", overwriteable");
   else if(drive_role==0 || drive_role==3)
     sprintf(respt+strlen(respt), ", sequential");
   strcat(respt, "\n");
 } else
    sprintf(respt+strlen(respt), "is not recognizable\n");
 Xorriso_result(xorriso,0);

 sprintf(respt, "Media status : ");
 s= isoburn_disc_get_status(drive);
 if (s == BURN_DISC_FULL) {
   sprintf(respt+strlen(respt), "is written , is closed\n");
 } else if (s == BURN_DISC_APPENDABLE) {
   sprintf(respt+strlen(respt), "is written , is appendable\n");
 } else if (s == BURN_DISC_BLANK) {
   sprintf(respt+strlen(respt), "is blank\n");
 } else if (s == BURN_DISC_EMPTY)
   sprintf(respt+strlen(respt), "is not present\n");
 else
   sprintf(respt+strlen(respt), "is not recognizable\n");
 Xorriso_result(xorriso,0);

 if(s != BURN_DISC_FULL && s != BURN_DISC_APPENDABLE)
   return(1);
 if(xorriso->request_to_abort)
   return(1);

 disc= isoburn_toc_drive_get_disc(drive);
 sprintf(respt, "TOC layout   : %3s , %9s , %10s , %s\n",
         "Idx", "sbsector", "Size", "Volume Id");
 if(!(flag&1))
   Xorriso_result(xorriso,0);

 if (disc==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   ret= isoburn_get_min_start_byte(drive, &start_byte, 0);
   nwa= start_byte / 2048;
   if(ret<=0) {
     Xorriso_process_msg_queues(xorriso,0);
     if(flag&1)
       return(0);
     sprintf(xorriso->info_text, "Cannot obtain Table Of Content");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(0);
   }

   /* fabricate TOC */
   ret= isoburn_read_iso_head(drive, 0, &image_blocks, volume_id, 1);
   if(ret>0) {
     sprintf(respt, "ISO session  : %3d , %9d , %9ds , %s\n",
             1, 0, image_blocks, volume_id);
     nwa= image_blocks;
   } else {
     nwa= 0;
     ret= burn_disc_get_formats(drive, &status, &size, &dummy,
                                &num_formats);
     if(ret>0 && status==BURN_FORMAT_IS_FORMATTED)
       nwa= size/2048;
     sprintf(respt, "Other session: %3d , %9d , %9ds , \n",
             1, 0, nwa);
   } 
   if(!(flag&1))
     Xorriso_result(xorriso,0);
   last_track_start= lba;
   num_payload= num_data= last_track_size= nwa;
   num_sessions= 1;
 } else {
   sessions= isoburn_toc_disc_get_sessions(disc, &num_sessions);
   for (session_no= 0; session_no<num_sessions && !(xorriso->request_to_abort);
        session_no++) {
     tracks= isoburn_toc_session_get_tracks(sessions[session_no], &num_tracks);
     if (tracks==NULL)
   continue;
     for(track_no= 0; track_no<num_tracks && !(xorriso->request_to_abort);
         track_no++) {
       track_count++;
       is_data= 0;
       isoburn_toc_track_get_entry(tracks[track_no], &toc_entry);
       if (toc_entry.extensions_valid & 1) {
         /* DVD extension valid */
         lba= toc_entry.start_lba;
         track_size= toc_entry.track_blocks;
       } else {
         lba= burn_msf_to_lba(toc_entry.pmin, toc_entry.psec,
                              toc_entry.pframe);
         if(track_no==num_tracks-1) {
           isoburn_toc_session_get_leadout_entry(sessions[session_no],
                                                 &next_toc_entry);
         } else {
           isoburn_toc_track_get_entry(tracks[track_no+1], &next_toc_entry);
         }
         track_size= burn_msf_to_lba(next_toc_entry.pmin, next_toc_entry.psec,
                                     next_toc_entry.pframe) - lba;
       }
       if(flag&1)
         ret= 0;
       else
         ret= isoburn_read_iso_head(drive, lba, &image_blocks, volume_id, 1);
       if(ret>0 && track_no==0) {
         sprintf(respt, "ISO session  : %3d , %9d , %9ds , %s\n",
                 session_no+1, lba, image_blocks , volume_id);
       } else if(ret>0) {
         sprintf(respt, "ISO track    : %3d , %9d , %9ds , %s\n",
                 track_count, lba, image_blocks , volume_id);
       } else if(track_no==0) {
         sprintf(respt, "Other session: %3d , %9d , %9ds , \n",
                 session_no+1, lba, track_size);
       } else {
         sprintf(respt, "Other track  : %3d , %9d , %9ds , \n",
                 track_count, lba, track_size);
       } 
       if(!(flag&1))
         Xorriso_result(xorriso,0);
       if(track_no>0)
         num_payload+= lba - last_track_start;
       last_track_start= lba;
       if((toc_entry.control&7)>=4) /* data track */
         is_data= 1;
     }
     isoburn_toc_session_get_leadout_entry(sessions[session_no], &toc_entry);
     if (toc_entry.extensions_valid & 1) {
       lba= toc_entry.start_lba;
       burn_lba_to_msf(lba, &pmin, &psec, &pframe);
     } else {
       lba= burn_msf_to_lba(pmin, psec, pframe);
       lba= burn_msf_to_lba(toc_entry.pmin, toc_entry.psec, toc_entry.pframe);
     }
     last_track_size= lba - last_track_start;
     num_payload+= last_track_size;
     if(is_data)
       num_data+= last_track_size;
   }
 }
 if(xorriso->request_to_abort)
   return(1);
 num_wasted= lba - num_payload;
 num_nondata= lba - num_data;
 Sfile_scale(((double) num_data) * 2048.0, mem_text,5,1e4,1);

 sprintf(respt, "Media summary: %d session%s, %d data blocks, %s data",
         num_sessions, (num_sessions==1 ? "" : "s"), num_data, mem_text);
 num_free= isoburn_disc_available_space(drive, NULL); 
 Sfile_scale((double) num_free, mem_text,5,1e4,1);
 sprintf(respt+strlen(respt), ", %s free", mem_text);

 sprintf(respt+strlen(respt), "\n");
 Xorriso_result(xorriso,0);

 if (s==BURN_DISC_APPENDABLE && nwa!=0) {
   ret= isoburn_disc_track_lba_nwa(drive, NULL, 0, &lba, &nwa);
   if(ret>0) {
     sprintf(respt, "Media nwa    : %ds\n", nwa);
     if(!(flag&1))
       Xorriso_result(xorriso,0);
   }
 }

 if (disc!=NULL)
   isoburn_toc_disc_free(disc);
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


int Xorriso_show_devices(struct XorrisO *xorriso, int flag)
{
 char adr[BURN_DRIVE_ADR_LEN];
 int i, j, max_dev_len= 1, pad;
 struct burn_drive_info *drive_list= NULL;
 unsigned int drive_count;
 char *respt, perms[8];
 struct stat stbuf;

 sprintf(xorriso->info_text, "Beginning to scan for devices ...\n");
 Xorriso_info(xorriso,0);

 burn_drive_clear_whitelist(); 
 while(!burn_drive_scan(&drive_list, &drive_count)) {
   Xorriso_process_msg_queues(xorriso,0);
   usleep(100000);
 }
 Xorriso_process_msg_queues(xorriso,0);
 if(drive_count <= 0) {

   /* >>> was a drive_list created at all ? */
   /* >>> must it be freed ? */

   sprintf(xorriso->info_text, "No drives found");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 sprintf(xorriso->info_text, "Full drive scan done\n");
 Xorriso_info(xorriso,0);

 sprintf(xorriso->info_text, "-----------------------------------------------------------------------------\n");
 Xorriso_info(xorriso,0);
 respt= xorriso->result_line;
 for(i= 0; i < drive_count && !(xorriso->request_to_abort); i++) {
   if(burn_drive_get_adr(&(drive_list[i]), adr)<=0)
     strcpy(adr, "-get_adr_failed-");
   Xorriso_process_msg_queues(xorriso,0);
   if(strlen(adr)>max_dev_len)
     max_dev_len= strlen(adr);
 }
 for(i= 0; i < drive_count && !(xorriso->request_to_abort); i++) {
   if(burn_drive_get_adr(&(drive_list[i]), adr)<=0)
     strcpy(adr, "-get_adr_failed-");
   Xorriso_process_msg_queues(xorriso,0);
   if(stat(adr,&stbuf)==-1) {
     sprintf(perms,"errno=%d",errno);
   } else { 
     strcpy(perms,"------");
     if(stbuf.st_mode&S_IRUSR) perms[0]= 'r';
     if(stbuf.st_mode&S_IWUSR) perms[1]= 'w';
     if(stbuf.st_mode&S_IRGRP) perms[2]= 'r';
     if(stbuf.st_mode&S_IWGRP) perms[3]= 'w';
     if(stbuf.st_mode&S_IROTH) perms[4]= 'r';
     if(stbuf.st_mode&S_IWOTH) perms[5]= 'w';
   }
   sprintf(respt, "%d  -dev '%s' ", i, adr);
   pad= max_dev_len-strlen(adr);
   if(pad>0)
     for(j= 0; j<pad; j++)
       strcat(respt, " ");
   sprintf(respt+strlen(respt), "%s :  '%-8.8s' '%s' \n",
           perms, drive_list[i].vendor, drive_list[i].product);
   Xorriso_result(xorriso,0);
 }
 sprintf(xorriso->info_text, "-----------------------------------------------------------------------------\n");
 Xorriso_info(xorriso,0);

 burn_drive_info_free(drive_list);
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


int Xorriso_tell_media_space(struct XorrisO *xorriso,
                             int *media_space, int *free_space, int flag)
{
 int ret;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 struct burn_write_opts *burn_options;

 (*free_space)= (*media_space)= 0;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to -tell_media_space", 2);
 if(ret<=0)
   return(0);

 ret= Xorriso_make_write_options(xorriso, drive, &burn_options, 0);
 if(ret<=0)
   return(-1);
 (*free_space)= (*media_space)=
              isoburn_disc_available_space(drive, burn_options) / (off_t) 2048;
 burn_write_opts_free(burn_options);

 if(xorriso->volset_change_pending) {
   ret= Xorriso_write_session(xorriso, 1);
   if(ret>0)
     (*free_space)-= ret;
 }
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


/* @param flag bit0=fast , bit1=deformat
   @return 0=failure, did not touch media , -1=failure, altered media
           1=success, altered media       ,  2=success, did not touch media
*/
int Xorriso_blank_media(struct XorrisO *xorriso, int flag)
{
 int ret, do_deformat= 0;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 enum burn_disc_status disc_state;
 struct burn_progress p;
 double percent = 1.0;
 int current_profile;
 char current_profile_name[80];
 time_t start_time;
 char mode_names[4][80]= {"all", "fast", "deformat", "deformat_quickest"};

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to -blank", 2);
 if(ret<=0)
   return(0);

 burn_disc_get_profile(drive, &current_profile, current_profile_name);

 disc_state = isoburn_disc_get_status(drive);
 if(current_profile == 0x13) { /* overwriteable DVD-RW */
   /* Depending on flag bit1 formatted DVD-RW will get blanked to sequential
      state or pseudo blanked by invalidating an eventual ISO image. */
   if(flag&2)
     do_deformat= 1;
 } else if(current_profile == 0x14) { /* sequential DVD-RW */
   if((flag&1) && !(flag&2)) {
     sprintf(xorriso->info_text,
             "-blank: DVD-RW present. Mode 'fast' defaulted to mode 'all'.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     sprintf(xorriso->info_text,
             "Mode 'deformat_quickest' produces single-session-only media.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
     flag&= ~1;
   }
 } else if(disc_state == BURN_DISC_BLANK) {
   sprintf(xorriso->info_text,"Blank media detected. Will leave it untouched");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   return 2;
 } else if(disc_state==BURN_DISC_FULL || disc_state==BURN_DISC_APPENDABLE) {
   ;
 } else if(disc_state == BURN_DISC_EMPTY) {
   sprintf(xorriso->info_text,"No media detected in drive");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return 0;
 } else {
   sprintf(xorriso->info_text, "Unsuitable drive and media state");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return 0;
 }
 if(!isoburn_disc_erasable(drive)) {
   sprintf(xorriso->info_text, "Media is not of erasable type");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return 0;
 }
 if(xorriso->do_dummy) {
   sprintf(xorriso->info_text,
           "-dummy mode prevents blanking of media in mode '%s'.",
           mode_names[flag&3]);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   return(1);
 }
 sprintf(xorriso->info_text, "Beginning to blank media in mode '%s'.\n",
         mode_names[flag&3]);
 Xorriso_info(xorriso,0);

 if(do_deformat)
   burn_disc_erase(drive, (flag&1));
 else
   isoburn_disc_erase(drive, (flag&1));
 start_time= time(0);
 usleep(1000000);
 while (burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
   Xorriso_process_msg_queues(xorriso,0);
   if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
     percent = 1.0 + ((double) p.sector+1.0) / ((double) p.sectors) * 98.0;
   sprintf(xorriso->info_text, "Blanking  ( %.1f%% done in %d seconds )",
           percent, (int) (time(0) - start_time));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
   usleep(1000000);
 }
 Xorriso_process_msg_queues(xorriso,0);
 sprintf(xorriso->info_text, "Blanking done\n");
 Xorriso_info(xorriso,0);
 return(1);
}


/* @param flag bit0= try to achieve faster formatting
               bit7= by_index mode:
                     bit8 to bit15 contain the index of the format to use.
   @return 0=failure, did not touch media , -1=failure, altered media
           1=success, altered media       ,  2=success, did not touch media
*/
int Xorriso_format_media(struct XorrisO *xorriso, int flag)
{
 int ret, mode_flag= 0, index, status, num_formats;
 unsigned dummy;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 struct burn_progress p;
 double percent = 1.0;
 int current_profile;
 char current_profile_name[80];
 off_t size= 0;
 time_t start_time;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to -format", 2);
 if(ret<=0)
   return(0);

 mode_flag= 4; /* format to full size */
 burn_disc_get_profile(drive, &current_profile, current_profile_name);

 if(flag&128) { /* by_index */
   index= (flag>>8) & 0xff;
   ret= burn_disc_get_formats(drive, &status, &size, &dummy, &num_formats);
   if(ret<=0)
     num_formats= 0;
   if(ret<=0 || index<0 || index>=num_formats) {
     if(num_formats>0)
       sprintf(xorriso->info_text,
            "-format by_index_%d: format descriptors range from index 0 to %d",
            index, num_formats-1);
     else
       sprintf(xorriso->info_text,
               "-format by_index_%d: no format descriptors available", index);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(0);
   }
   mode_flag= (flag & 0xff80) | 4; /* with size taken from descriptor */
   if(flag&1)
     mode_flag|= (1<<6);

 } else if(current_profile == 0x12) { /* DVD+RAM */
   mode_flag= 6; /* format to default payload size */
   if(flag&1)
     mode_flag|= (1<<6);

 } else if(current_profile == 0x13) { /* DVD-RW */
   if(flag&1) {
     sprintf(xorriso->info_text,
          "Detected formatted DVD-RW. Thus omitting desired fast format run.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     return(2);
   }

 } else if(current_profile == 0x14) { /* DVD-RW sequential */
   if(flag&1) {
     size= 128*1024*1024;
     mode_flag= 1; /* format to size, then write size of zeros */
   } 

 } else if(current_profile == 0x1a) { /* DVD+RW */
   if(flag&1) {
     sprintf(xorriso->info_text,
             "Detected DVD+RW. Thus omitting desired fast format run.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     return(2);
   }

 } else if(current_profile == 0x43) { /* BD-RE */
   mode_flag= 6; /* format to default payload size */
   if(flag&1)
     mode_flag|= (1<<6);

 } else {
   sprintf(xorriso->info_text,
          "-format: Unsuitable media detected.");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   sprintf(xorriso->info_text,"Media current: %s (%4.4xh)",
           current_profile_name, current_profile);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   return(0);
 }

 if(xorriso->do_dummy) {
   sprintf(xorriso->info_text, "-dummy mode prevents formatting of media.");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   return(1);
 }
 sprintf(xorriso->info_text, "Beginning to format media.\n");
 Xorriso_info(xorriso, 0);
 burn_disc_format(drive, size, mode_flag);

 start_time= time(0);
 usleep(1000000);
 while (burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
   Xorriso_process_msg_queues(xorriso,0);
   if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
     percent = 1.0 + ((double) p.sector+1.0) / ((double) p.sectors) * 98.0;
   sprintf(xorriso->info_text, "Formatting  ( %.1f%% done in %d seconds )",
           percent, (int) (time(0) - start_time));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
   usleep(1000000);
 }

 Xorriso_process_msg_queues(xorriso,0);
 sprintf(xorriso->info_text, "Formatting done\n");
 Xorriso_info(xorriso,0);
 return(1);
}


/* @param flag bit2= formatting rather than blanking
   @return 0=failure, did not touch media , -1=failure, altered media
           1=success, altered media       ,  2=success, did not touch media
*/
int Xorriso_blank_as_needed(struct XorrisO *xorriso, int flag)
{
 int ret, is_formatted= -1, status, num_formats;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 enum burn_disc_status disc_state;
 unsigned dummy;
 int current_profile;
 char current_profile_name[80];
 off_t size;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to blank or format", 2);
 if(ret<=0)
   return(0);

 burn_disc_get_profile(drive, &current_profile, current_profile_name);

 ret= burn_disc_get_formats(drive, &status, &size, &dummy, &num_formats);
 if(ret>0 && status==BURN_FORMAT_IS_FORMATTED)
   is_formatted= 1;
 if(current_profile == 0x12 || current_profile == 0x43) { /* DVD+RAM , BD-RE */
   if(is_formatted<0) {
     sprintf(xorriso->info_text,
             "-blank or -format: Unclear formatting status of %s",
             current_profile_name);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(0);
   }
   if(!is_formatted) {
     ret= Xorriso_format_media(xorriso, 0);
     return(ret);
   }
 } else if(current_profile == 0x14 && (flag&4)) { /* DVD-RW sequential  */
   ret= Xorriso_format_media(xorriso, 0);
   return(ret);
 }

 disc_state = isoburn_disc_get_status(drive);
 if(disc_state != BURN_DISC_BLANK && !(flag&4)) {
   ret= Xorriso_blank_media(xorriso, 1);
   return(ret);
 }
 sprintf(xorriso->info_text, "%s as_needed: no need for action detected",
         (flag&4) ? "-format" : "-blank");
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
 return(2);
}


/* @return <=0 error, 1 success
*/
int Xorriso_list_formats(struct XorrisO *xorriso, int flag)
{
 int ret, i, status, num_formats, profile_no, type;
 off_t size;
 unsigned dummy;
 char status_text[80], profile_name[90], *respt;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;

 respt= xorriso->result_line;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                             "on attempt to obtain format descriptor list", 2);
 if(ret<=0)
   return(0);

 ret= burn_drive_get_drive_role(drive);
 if(ret!=1) {
   sprintf(xorriso->info_text,
           "output device is not an MMC drive. -list_format does not apply");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   ret= 2; goto ex;
 }

 ret = burn_disc_get_formats(drive, &status, &size, &dummy,
                             &num_formats);
 if(ret<=0) {
   sprintf(xorriso->info_text, "Cannot obtain format list info");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }
 ret= Xorriso_toc(xorriso, 3);
 if(ret<=0)
   goto ex;
 ret= burn_disc_get_profile(drive, &profile_no, profile_name);
 if(ret<=0)
   goto ex;

 if(status == BURN_FORMAT_IS_UNFORMATTED)
   sprintf(status_text, "unformatted, up to %.1f MiB",
                        ((double) size) / 1024.0 / 1024.0);
 else if(status == BURN_FORMAT_IS_FORMATTED) {
   if(profile_no==0x12 || profile_no==0x13 || profile_no==0x1a ||
      profile_no==0x43)
     sprintf(status_text, "formatted, with %.1f MiB",
                         ((double) size) / 1024.0 / 1024.0);
   else
     sprintf(status_text, "written, with %.1f MiB",
                         ((double) size) / 1024.0 / 1024.0);
 } else if(status == BURN_FORMAT_IS_UNKNOWN) {
   if (profile_no > 0)
     sprintf(status_text, "intermediate or unknown");
   else
     sprintf(status_text, "no media or unknown media");
 } else
   sprintf(status_text, "illegal status according to MMC-5");
 sprintf(respt, "Format status: %s\n", status_text);
 Xorriso_result(xorriso,0);

 for (i= 0; i < num_formats; i++) {
   ret= burn_disc_get_format_descr(drive, i, &type, &size, &dummy);
   if (ret <= 0)
 continue;
   sprintf(respt, "Format idx %-2d: %2.2Xh , %.fs , %.1f MiB\n",
          i, type, ((double) size) / 2048.0, ((double) size) / 1024.0/1024.0);
   Xorriso_result(xorriso,0);
 }
 ret= 1;
ex:;
 return(ret);
}


int Xorriso_cannot_create_iter(struct XorrisO *xorriso, int iso_error,int flag)
{
 Xorriso_process_msg_queues(xorriso,0);
 Xorriso_report_iso_error(xorriso, "", iso_error, "Cannot create iter", 0,
                          "FATAL", 1);
 sprintf(xorriso->info_text, "Cannot create IsoDirIter object");
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
 return(1);
}


int Xorriso__node_lba_cmp(const void *node1, const void *node2)
{
 uint32_t lba1= 0, lba2= 0;
 int ret;

 ret = iso_node_get_old_image_lba(*((IsoNode **) node1), &lba1, 0);
 if(ret!=1)
   lba1= 0;
 ret = iso_node_get_old_image_lba(*((IsoNode **) node2), &lba2, 0);
 if(ret!=1)
   lba1= 0;
 return(lba1-lba2);  
}

/* The caller shall make no assumptions about the meaning of iter, node_array,
   node_count, node_idx ! They are just opaque handles for which the caller
   provides the memory of proper type.
   @param flag bit0= initialize iteration
               bit1= action needs full freedom of object manipulation
               bit2= action needs LBA sorted iteration
               bit31= end iteration (mandatory !)
*/
int Xorriso_findi_iter(struct XorrisO *xorriso, IsoDir *dir_node, off_t *mem,
                       IsoDirIter **iter, 
                       IsoNode ***node_array, int *node_count, int *node_idx,
                       IsoNode **iterated_node, int flag)
{
 int ret, i;
 IsoNode *node;
 off_t new_mem= 0;
 char mem_text[80], limit_text[80];

 if(flag&1) {
   *node_array= NULL;
   *node_count= -1;
   *node_idx= 0;
   *iter= NULL;
   ret= iso_dir_get_children(dir_node, iter);
   if(ret<0) {
cannot_iter:;
     Xorriso_cannot_create_iter(xorriso, ret, 0);
     return(-1);
   }
   if((flag&2)|(flag&4)) {
     /* copy list of nodes and prepare soft iterator */
     *node_count= 0;
     while(iso_dir_iter_next(*iter, &node) == 1)
       (*node_count)++;
     iso_dir_iter_free(*iter);
     *iter= NULL;

     new_mem= ((*node_count)+1) * sizeof(IsoNode *);
     if(new_mem > xorriso->temp_mem_limit) {
       Sfile_scale((double) new_mem, mem_text, 5,1e4, 0);
       Sfile_scale((double) xorriso->temp_mem_limit, limit_text, 5,1e4, 0);
       sprintf(xorriso->info_text,
           "Stacked directory snapshots exceed -temp_mem_limit (%s > %s)",
           mem_text, limit_text);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       *node_count= -1;
       return(-1);
     }
     (*node_array)= (IsoNode **) calloc((*node_count)+1, sizeof(IsoNode *));
     if(*node_array == NULL) {
       sprintf(xorriso->info_text,
               "Could not allocate inode list of %.f bytes",
               ((double) (*node_count)+1) * (double) sizeof(IsoNode *));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
       *node_count= -1;
       return(-1);
     }
     *mem= new_mem;
     ret= iso_dir_get_children(dir_node, iter);
     if(ret<0)
       goto cannot_iter;
     while(iso_dir_iter_next(*iter, &node) == 1 && *node_idx < *node_count) {
       (*node_array)[*node_idx]= node;
       iso_node_ref(node);
       (*node_idx)++;
     }
     iso_dir_iter_free(*iter);
     *iter= NULL;
     *node_count= *node_idx;
     *node_idx= 0;
     if((flag&4) && *node_count>1)
       qsort(*node_array, *node_count, sizeof(IsoNode *),
             Xorriso__node_lba_cmp);
   }
 }

 if(flag&(1<<31)) {
   if(*node_count>=0 && *node_array!=NULL) {
     for(i= 0; i<*node_count; i++)
       iso_node_unref((*node_array)[i]);
     free(*node_array);
     *node_array= NULL;
     *node_count= -1;
     *node_idx= 0;
   } else {
     if(*iter!=NULL)
       iso_dir_iter_free(*iter);
     *iter= NULL;
   }
 }

 if(flag&(1|(1<<31))) 
   return(1);
 if(*node_count>=0) {
   /* return next node_array element */
   if(*node_idx>=*node_count)
     return(0);
   *iterated_node= (*node_array)[*node_idx];
   (*node_idx)++;
 } else {
   ret= iso_dir_iter_next(*iter, iterated_node);
   return(ret == 1);
 }
 return(1);
}


/* @param boss_iter  If not NULL then this is an iterator suitable for
               iso_dir_iter_remove()  which is then to be used instead
               of iso_node_remove().
   @param flag bit0= remove whole sub tree: rm -r
               bit1= remove empty directory: rmdir  
               bit2= recursion: do not reassure in mode 2 "tree"
               bit3= this is for overwriting and not for plain removal
               bit4= count deleted files in xorriso->pacifier_count
               bit5= with bit0 only remove directory content, not the directory
   @return   <=0 = error
               1 = removed simple node 
               2 = removed directory or tree
               3 = did not remove on user revocation
*/
int Xorriso_rmi(struct XorrisO *xorriso, void *boss_iter, off_t boss_mem,
                char *path, int flag)
{
 int ret, is_dir= 0, pl, not_removed= 0, fret;
 IsoNode *victim_node, *node;
 IsoDir *boss_node, *root_dir;
 IsoDirIter *iter= NULL;
 IsoImage *volume;
 char *sub_name, *name;
 char *sfe= NULL, *sub_path= NULL;
 off_t mem;
 IsoNode **node_array= NULL;
 int node_count, node_idx;

#ifdef Xorriso_fat_local_meM
 char sfe[5*SfileadrL], sub_path[2*SfileadrL];
#else

 /* Avoiding large local memory objects in order to save stack space */
 sfe= malloc(5*SfileadrL);
 sub_path= malloc(2*SfileadrL);
 if(sfe==NULL || sub_path==NULL) {
   Xorriso_no_malloc_memory(xorriso, &sfe, 0);
   {ret= -1; goto ex;}
 }
#endif /* ! Xorriso_fat_local_meM */

#ifndef Libisofs_iso_dir_iter_sufficienT
 /* Ticket 127: A80301 - A80302
    I do not not deem IsoDirIter safe for node list manipulations.
    The parameter boss_iter once was intended to allow such but
    has now been downgraded to a mere check for eventual programming bugs.
 */
 if(boss_iter!=NULL) {
   sprintf(xorriso->info_text,
       "Program error: Xorriso_rmi() was requested to delete iterated node %s",
       Text_shellsafe(path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   ret= -1; goto ex;
 }
#endif /* Libisofs_iso_dir_iter_sufficienT */

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   goto ex;
 
 if(Xorriso_much_too_long(xorriso, strlen(path), 0)<=0)
   {ret= 0; goto ex;}
 ret= Xorriso_node_from_path(xorriso, volume, path, &victim_node, 0);
 if(ret<=0)
   goto ex;
 root_dir= iso_image_get_root(volume);
 if(((void *) root_dir) == ((void *) victim_node)) {
   sprintf(xorriso->info_text, "May not delete root directory");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }

 if(LIBISO_ISDIR(victim_node))
   is_dir= 1;
 if(!is_dir) {
   if(flag&2) { /* rmdir */
     sprintf(xorriso->info_text, "%s in loaded ISO image is not a directory",
             Text_shellsafe(path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto ex;
   }
 } else {
   if(flag&1) { /* rm -r */
     if((xorriso->do_reassure==1 && !xorriso->request_not_to_ask) ||
        (flag&32)) {
       /* Iterate over subordinates and delete them */
       mem= boss_mem;

       ret= Xorriso_findi_iter(xorriso, (IsoDir *) victim_node, &mem,
                         &iter, &node_array, &node_count, &node_idx,
                         &node, 1|2);
       if(ret<=0) {
cannot_create_iter:;
         Xorriso_cannot_create_iter(xorriso, ret, 0);
         ret= -1; goto ex;
       }
       pl= strlen(path);
       strcpy(sub_path, path);
       if(pl==0 || sub_path[pl-1]!='/') {
         sub_path[pl++]= '/';
         sub_path[pl]= 0;
       }
       sub_name= sub_path+pl;
       while(1) { 
         ret= Xorriso_findi_iter(xorriso, (IsoDir *) victim_node, &mem, &iter,
                                &node_array, &node_count, &node_idx, &node, 0);
         if(ret<0)
           goto ex;
         if(ret==0 || xorriso->request_to_abort)
       break;
         name= (char *) iso_node_get_name(node);
         if(Xorriso_much_too_long(xorriso, pl+1+strlen(name), 0)<=0)
           {ret= 0; goto rm_r_problem_handler;}
         strcpy(sub_name, name);
         ret= Xorriso_rmi(xorriso, iter, mem, sub_path, (flag&(1|2|8|16))|4);
         if(ret==3 || ret<=0 || xorriso->request_to_abort) {
rm_r_problem_handler:;
           not_removed= 1;
           fret= Xorriso_eval_problem_status(xorriso, ret, 1|2);
           if(fret<0)
             goto dir_not_removed;
         }
       }
       if(flag&32)
         {ret= 2; goto ex;}

       if(not_removed) {
dir_not_removed:;
         sprintf(xorriso->info_text, "Directory not removed: %s",
                 Text_shellsafe(path, sfe, 0));
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
         if(ret>0)
           ret= 3;
         goto ex;
       }
     }
   } else {
     if(!(flag&2)) { /* not rmdir */
       sprintf(xorriso->info_text, "%s in loaded ISO image is a directory",
               Text_shellsafe(path, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }

     ret= iso_dir_get_children((IsoDir *) victim_node, &iter);
     Xorriso_process_msg_queues(xorriso,0);
     if(ret<0)
       goto cannot_create_iter;
     if(ret>0) {
       if(iso_dir_iter_next(iter, &node) == 1) {
         sprintf(xorriso->info_text,
                 "Directory not empty on attempt to delete: %s",
                 Text_shellsafe(path, sfe, 0));
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
         ret= 0; goto ex;
       }
     }
   }
 }

 if(xorriso->request_to_abort)
   {ret= 3; goto ex;}
 boss_node= iso_node_get_parent(victim_node);
 Xorriso_process_msg_queues(xorriso,0);
 if(boss_node==NULL) {
   sprintf(xorriso->info_text,
           "Cannot find parent node of %s in loaded ISO image",
           Text_shellsafe(path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }

 while((xorriso->do_reassure==1 || (xorriso->do_reassure==2 && !(flag&4)))
       && !xorriso->request_not_to_ask) {
   /* ls -ld */
   Xorriso_ls_filev(xorriso, xorriso->wdi, 1, &path, (off_t) 0, 1|2|8);
   if(is_dir) /* du -s */
     Xorriso_ls_filev(xorriso, xorriso->wdi, 1, &path, (off_t) 0, 2|4);
   if(flag&8)
     sprintf(xorriso->info_text,
  "File exists. Remove ?  n= keep old, y= remove, x= abort, @= stop asking\n");
   else
     sprintf(xorriso->info_text,
  "Remove above file ?  n= keep it, y= remove it, x= abort, @= stop asking\n");
   Xorriso_info(xorriso, 4);
   ret= Xorriso_request_confirmation(xorriso, 1|2|4|16);
   if(ret<=0)
     goto ex;
   if(xorriso->request_to_abort) {
     sprintf(xorriso->info_text,
             "Removal operation aborted by user before file: %s",
             Text_shellsafe(path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     ret= 3; goto ex;
   }
   if(ret==3)
 continue;
   if(ret==6) /* yes */
 break;
   if(ret==4) { /* yes, do not ask again */
     xorriso->request_not_to_ask= 1;
 break;
   }
   if(ret==1) { /* no */
     sprintf(xorriso->info_text, "Kept in existing state: %s",
             Text_shellsafe(path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     ret= 3; goto ex;
   }
 }

#ifdef Libisofs_iso_dir_iter_sufficienT

 if(boss_iter!=NULL) {
   ret= iso_dir_iter_remove((IsoDirIter *) boss_iter);
   if(ret<0)
     ret= -1;
 } else
   ret= iso_node_remove(victim_node);

#else /* ! Libisofs_iso_dir_iter_sufficienT */

 ret= iso_node_remove(victim_node);

#endif /* Libisofs_iso_dir_iter_sufficienT */

 Xorriso_process_msg_queues(xorriso,0);
 if(ret<0) {
   Xorriso_report_iso_error(xorriso, path, ret, "Cannot remove node", 0,
                            "FATAL", 1);
   sprintf(xorriso->info_text,
           "Internal failure to remove %s from loaded ISO image",
           Text_shellsafe(path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   ret= -1; goto ex;
 }
 if(flag&16)
   xorriso->pacifier_count++;
 xorriso->volset_change_pending= 1;
 ret= 1+!!is_dir;
ex:;

#ifndef Xorriso_fat_local_meM
 if(sfe!=NULL)
   free(sfe);
 if(sub_path!=NULL)
   free(sub_path);
#endif /* ! Xorriso_fat_local_meM */

 Xorriso_findi_iter(xorriso, (IsoDir *) victim_node, &mem, &iter,
                    &node_array, &node_count, &node_idx, &node, (1<<31));
 return(ret);
} 


int Xorriso__node_name_cmp(const void *node1, const void *node2)
{
 char *name1, *name2;

 name1= (char *) iso_node_get_name(*((IsoNode **) node1));
 name2= (char *) iso_node_get_name(*((IsoNode **) node2));
 return(strcmp(name1,name2));
}


/* @param flag bit0= only accept directory nodes
               bit1= do not report memory usage as DEBUG
               bit2= do not apply search pattern but accept any node
*/
int Xorriso_sorted_node_array(struct XorrisO *xorriso, 
                              IsoDir *dir_node,
                              int *nodec, IsoNode ***node_array,
                              off_t boss_mem, int flag)
{
 int i, ret, failed_at;
 char *npt;
 IsoDirIter *iter= NULL;
 IsoNode *node;
 off_t mem;

 mem= ((*nodec)+1)*sizeof(IsoNode *);
 ret= Xorriso_check_temp_mem_limit(xorriso, mem+boss_mem, flag&2);
 if(ret<=0)
   return(ret);

 *node_array= calloc(sizeof(IsoNode *), (*nodec)+1);
 if(*node_array==NULL) {
   sprintf(xorriso->info_text,
           "Cannot allocate memory for %d directory entries", *nodec); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }

 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) {
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   return(-1);
 }
 
 for(i= 0; iso_dir_iter_next(iter, &node) == 1 && i<*nodec; ) {
   npt= (char *) iso_node_get_name(node);
   if(!(flag&4)) {
     ret= Xorriso_regexec(xorriso, npt, &failed_at, 0);
     if(ret)
 continue; /* no match */
   }
   if(flag&1)
     if(!LIBISO_ISDIR(node))
 continue;
   (*node_array)[i++]= node;
 }
 iso_dir_iter_free(iter);
 *nodec= i;
 if(*nodec<=0)
   return(1);
 qsort(*node_array, *nodec, sizeof(IsoNode *), Xorriso__node_name_cmp);
 return(1);
}


/* @param flag bit0= do not only sum up sizes but also print subdirs
*/
int Xorriso_show_du_subs(struct XorrisO *xorriso, IsoDir *dir_node,
                      char *abs_path, char *rel_path, off_t *size,
                      off_t boss_mem, int flag)
{
 int i, ret, no_sort= 0, filec= 0, l;
 IsoDirIter *iter= NULL;
 IsoNode *node, **node_array= NULL;
 char *name;
 off_t sub_size, report_size, mem= 0;

#ifdef Xorriso_fat_local_meM
 char path[SfileadrL], show_path[SfileadrL], sfe[5*SfileadrL];
#else /* Xorriso_fat_local_meM */
 char *path= NULL, *show_path= NULL, *sfe= NULL;

 sfe= malloc(5*SfileadrL);
 path= malloc(SfileadrL);
 show_path= malloc(SfileadrL);
 if(path==NULL || show_path==NULL || sfe==NULL) {
   Xorriso_no_malloc_memory(xorriso, &sfe, 0);
   {ret= -1; goto ex;}
 }

#endif /* ! Xorriso_fat_local_meM */

 *size= 0;
 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) {
cannot_create_iter:;
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   {ret= -1; goto ex;}
 }
 for(i= 0; iso_dir_iter_next(iter, &node) == 1; ) {
   sub_size= 0;
   name= (char *) iso_node_get_name(node);
   strcpy(show_path, rel_path);
   if(Sfile_add_to_path(show_path, name, 0)<=0)
       goto much_too_long;
   if(LIBISO_ISDIR(node)) {
     strcpy(path, abs_path);
     if(Sfile_add_to_path(path, name, 0)<=0) {
much_too_long:;
       Xorriso_much_too_long(xorriso, strlen(path)+strlen(name)+1, 2);
       {ret= -1; goto ex;}
     }
     filec++;
     l= strlen(rel_path)+1;
     mem+= l;
     if(l % sizeof(char *))
       mem+= sizeof(char *)-(l % sizeof(char *));
     if(flag&1) /* diving and counting is done further below */
 continue;
     ret= Xorriso_show_du_subs(xorriso, (IsoDir *) node,
                               path, show_path, &sub_size, boss_mem, 0);
     if(ret<0)
       goto ex;
     if(ret==0)
 continue;
   }

   if(LIBISO_ISREG(node)) {
     sub_size+= iso_file_get_size((IsoFile *) node)+2048;
/*
     sub_size+= iso_file_get_size((IsoFile *) node)+strlen(name)+1;
*/
   }

   if(sub_size>0)
     (*size)+= sub_size;
   Xorriso_process_msg_queues(xorriso,0);
 }

 if(filec<=0 || !(flag&1))
   {ret= 1; goto ex;}

 /* Reset iteration */
 iso_dir_iter_free(iter);
 iter= NULL;
 Xorriso_process_msg_queues(xorriso,0);

 ret= Xorriso_sorted_node_array(xorriso, dir_node, &filec, &node_array,
                                boss_mem, 1|2|4);
 if(ret<0)
   goto ex;
 if(ret==0) {
   no_sort= 1;
   ret= iso_dir_get_children(dir_node, &iter);
   if(ret<0)
     goto cannot_create_iter;
 }

 for(i= 0; (no_sort || i<filec) && !(xorriso->request_to_abort); i++) {
   if(no_sort) {
     ret= iso_dir_iter_next(iter, &node);
     if(ret!=1)
 break;
     if(!LIBISO_ISDIR(node))
 continue;
   } else
     node= node_array[i];

   sub_size= 0;
   name= (char *) iso_node_get_name(node);
   strcpy(show_path, rel_path);
   if(Sfile_add_to_path(show_path, name, 0)<=0)
     goto much_too_long;
   strcpy(path, abs_path);
   if(Sfile_add_to_path(path, name, 0)<=0)
     goto much_too_long;
   ret= Xorriso_show_du_subs(xorriso, (IsoDir *) node,
                             path, show_path, &sub_size, boss_mem+mem, flag&1);
   if(ret<0)
     goto ex;

   if(LIBISO_ISREG(node)) {
     sub_size+= iso_file_get_size((IsoFile *) node)+2048;
/*
     sub_size+= iso_tree_node_get_size((IsoFile *) node)+strlen(name)+1;
*/
   }
   if(sub_size>0)
     (*size)+= sub_size;
   report_size= sub_size/1024;
   if(report_size*1024<sub_size)
      report_size++;
   sprintf(xorriso->result_line, "%7.f ",(double) (report_size));
   sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s\n",
           Text_shellsafe(show_path, sfe, 0));
   Xorriso_result(xorriso, 0);
 }
 ret= 1;
ex:;

#ifndef Xorriso_fat_local_meM
 if(sfe!=NULL)
   free(sfe);
 if(path!=NULL)
   free(path);
 if(show_path!=NULL)
   free(show_path);
#endif /* ! Xorriso_fat_local_meM */

 if(iter!=NULL)
   iso_dir_iter_free(iter);
 if(node_array!=NULL)
   free((char *) node_array);
 Xorriso_process_msg_queues(xorriso,0);
 return(ret);
}


int Xorriso_sorted_dir_i(struct XorrisO *xorriso, IsoDir *dir_node,
                         int *filec, char ***filev, off_t boss_mem, int flag)
{
 int i,j,ret;
 IsoDirIter *iter= NULL;
 IsoNode *node;
 char *name;
 off_t mem;

 (*filec)= 0;
 (*filev)= NULL;

 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) {
cannot_iter:;
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   {ret= -1; goto ex;}
 }
 mem= 0;
 for(i= 0; iso_dir_iter_next(iter, &node) == 1; ) {
   name= (char *) iso_node_get_name(node);
   mem+= sizeof(char *)+strlen(name)+8;
   (*filec)++;
 }
 iso_dir_iter_free(iter);
 iter= NULL;
 if(*filec==0)
   {ret= 1; goto ex;}

 ret= Xorriso_check_temp_mem_limit(xorriso, mem+boss_mem, 2);
 if(ret<=0)
   goto ex;
 (*filev)= (char **) calloc(*filec, sizeof(char *));
 if(*filev==NULL)
   {ret= -1; goto ex; }
 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) 
   goto cannot_iter;
 for(i= 0; i<*filec; i++) {
   ret= iso_dir_iter_next(iter, &node);
   if(ret!=1)
 break;
   name= (char *) iso_node_get_name(node);
   (*filev)[i]= strdup(name);
   if((*filev)[i]==NULL) {
     for(j= 0; j<i; j++)
       if((*filev)[j]!=NULL)
         free((*filev)[j]);
     free((char *) (*filev));
     ret= -1; goto ex;
   }
 }
 Sort_argv(*filec, *filev, 0);
 ret= 1;
ex:;
 if(iter!=NULL)
   iso_dir_iter_free(iter);
 return(ret);
}


/* @param flag bit0= long format
               bit1= do not print count of nodes
               bit2= du format
               bit3= print directories as themselves (ls -d)
*/
int Xorriso_ls_filev(struct XorrisO *xorriso, char *wd,
                     int filec, char **filev, off_t boss_mem, int flag)
{
 int i, ret, was_error= 0, dfilec= 0, pass, passes;
 IsoNode *node;
 IsoImage *volume;
 char sfe[5*SfileadrL], sfe2[5*SfileadrL], path[SfileadrL];
 char link_target[SfileadrL], *rpt, **dfilev= NULL;
 off_t size;
 struct stat stbuf;

 rpt= xorriso->result_line;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);

 Sort_argv(filec, filev, 0);

 /* Count valid nodes, warn of invalid ones */
 for(i= 0; i<filec; i++) {
   ret= Xorriso_make_abs_adr(xorriso, wd, filev[i], path, 1|2|4);
   if(ret<=0) {
     was_error++;
 continue;
   }
   ret= Xorriso_node_from_path(xorriso, volume, path, &node, 1);
   if(ret<=0) {
     sprintf(xorriso->info_text, "Not found in ISO image: %s",
             Text_shellsafe(path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
     was_error++;
 continue;
   }
 }

 if((flag&8) && !(flag&(2|4))) {
   sprintf(xorriso->info_text, "Valid ISO nodes found: %d\n", filec-was_error);
   Xorriso_info(xorriso,1);
   if(filec-was_error<=0)
     return(!was_error);
 }

 passes= 1+!(flag&(4|8));
 for(pass= 0; pass<passes; pass++)
 for(i= 0; i<filec && !(xorriso->request_to_abort); i++) {
   rpt[0]= 0;
   ret= Xorriso_make_abs_adr(xorriso, wd, filev[i], path, 1|2|4);
   if(ret<=0)
 continue;
   ret= Xorriso_fake_stbuf(xorriso, path, &stbuf, &node, (flag&4)>>1);
   if(ret<=0)
 continue;
   if(LIBISO_ISDIR(node)  && !(flag&(4|8))) {
     if(pass==0)
 continue;
     if(filec>1) {
       strcpy(xorriso->result_line, "\n");
       Xorriso_result(xorriso,0);
       sprintf(xorriso->result_line, "%s:\n", Text_shellsafe(filev[i], sfe,0));
       Xorriso_result(xorriso,0);
     }
     ret= Xorriso_sorted_dir_i(xorriso, 
                               (IsoDir *) node, &dfilec, &dfilev, boss_mem, 0);
     if(ret<=0) {

       /* >>> libisofs iterator loop and single item Xorriso_lsx_filev() */;

     } else {
       if(flag&1) {
         sprintf(xorriso->result_line, "total %d\n", dfilec);
         Xorriso_result(xorriso,0);
       }
       Xorriso_ls_filev(xorriso, path,
                        dfilec, dfilev, boss_mem, (flag&1)|2|8);
     }
     if(dfilec>0)
       Sfile_destroy_argv(&dfilec, &dfilev, 0);
 continue;
   } else
     if(pass>0)
 continue;
   link_target[0]= 0;
   if((flag&5)==1) { /* -ls_l */
     ret= Xorriso_format_ls_l(xorriso, &stbuf, 0);
     if(ret<=0)
 continue;
     if(LIBISO_ISLNK(node)) {
       if(Sfile_str(link_target, (char *) iso_symlink_get_dest(
                                                   (IsoSymlink *) node), 0)<=0)
         link_target[0]= 0;
     }
   } else if(flag&4) { /* -du or -dus */
     size= stbuf.st_size;
     if(S_ISDIR(stbuf.st_mode)) {
       ret= Xorriso_show_du_subs(xorriso, (IsoDir *) node,
                                 path, filev[i], &size, boss_mem, flag&1);
       if(ret<0)
         return(-1);
       if(ret==0)
 continue;
     }
     sprintf(rpt, "%7.f ",(double) (size/1024));
   }
   if(link_target[0] && (flag&5)==1)
     sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s -> %s\n",
             Text_shellsafe(filev[i], sfe, 0),
             Text_shellsafe(link_target, sfe2, 0));
   else
     sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s\n",
             Text_shellsafe(filev[i], sfe, 0));
   Xorriso_result(xorriso, 0);
 }
 return(!was_error);
}


/* This function needs less buffer memory than Xorriso_ls_filev() but cannot
   perform structured pattern matching as done by Xorriso_expand_pattern()
   for subsequent Xorriso_ls_filev().
   @param flag bit0= long format
               bit1= only check for directory existence
               bit2= do not apply search pattern but accept any file
               bit3= just count nodes and return number
*/
int Xorriso_ls(struct XorrisO *xorriso, int flag)
{
 int ret, is_dir= 0, i, filec= 0, failed_at, no_sort= 0;
 IsoNode *node, **node_array= NULL;
 IsoDir *dir_node;
 IsoImage *volume;
 IsoDirIter *iter= NULL;
 char sfe[5*SfileadrL], sfe2[5*SfileadrL], link_target[SfileadrL], *npt, *rpt;
 struct stat stbuf;

 rpt= xorriso->result_line;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);

 ret= Xorriso_node_from_path(xorriso, volume, xorriso->wdi, &node, 0);
 if(ret<=0)
   goto wdi_is_not_a_dir;
 if(LIBISO_ISDIR(node))
   is_dir= 1;
 if(!is_dir) {
wdi_is_not_a_dir:;
   sprintf(xorriso->info_text,
           "Working directory path does not lead to a directory in ISO image"); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }
 if(flag&2)
   {ret= 1; goto ex;}

 dir_node= (IsoDir *) node;
 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) {
cannot_create_iter:;
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   {ret= -1; goto ex;}
 }
 Xorriso_process_msg_queues(xorriso,0);

 for(i= 0; iso_dir_iter_next(iter, &node) == 1; ) {
   npt= (char *) iso_node_get_name(node);
   if(!(flag&4)) {
     ret= Xorriso_regexec(xorriso, npt, &failed_at, 0);
     if(ret)
 continue; /* no match */
   }
   filec++;
 }
 /* Reset iteration */
 iso_dir_iter_free(iter);
 iter= NULL;
 Xorriso_process_msg_queues(xorriso,0);
 if(flag&8)
   {ret= filec; goto ex;}
 sprintf(xorriso->info_text, "Valid ISO nodes found: %d\n", filec);
 Xorriso_info(xorriso,1);

 ret= Xorriso_sorted_node_array(xorriso, dir_node, &filec, &node_array, 0,
                                flag&4);
 if(ret<0)
   goto ex;
 if(ret==0) {
   no_sort= 1;
   ret= iso_dir_get_children(dir_node, &iter);
   if(ret<0)
     goto cannot_create_iter;
 }

 for(i= 0; i<filec && !(xorriso->request_to_abort); i++) {
   if(no_sort) {
     ret= iso_dir_iter_next(iter, &node);
     if(ret!=1)
 break;
     npt= (char *) iso_node_get_name(node);
     if(!(flag&4)) {
       ret= Xorriso_regexec(xorriso, npt, &failed_at, 0);
       if(ret)
 continue; /* no match */
     }
   } else
     node= node_array[i];

   npt= (char *) iso_node_get_name(node);
   link_target[0]= 0;
   if(LIBISO_ISLNK(node)) {
     if(Sfile_str(link_target, (char *) iso_symlink_get_dest(
                                                   (IsoSymlink *) node), 0)<=0)
       link_target[0]= 0;
   }
   rpt[0]= 0;
   if(flag&1) {
     ret= Xorriso_fake_stbuf(xorriso, "", &stbuf, &node, 1);
     if(ret<=0)
 continue;
     ret= Xorriso_format_ls_l(xorriso, &stbuf, 0);
     if(ret<=0)
 continue;
   }
   if(link_target[0] && (flag&1))
     sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s -> %s\n",
             Text_shellsafe(npt, sfe, 0), 
             Text_shellsafe(link_target, sfe2, 0));
   else
     sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s\n",
             Text_shellsafe(npt, sfe, 0));
   Xorriso_result(xorriso, 0);
 }

 ret= 1;
ex:;
 if(iter!=NULL)
   iso_dir_iter_free(iter);
 Xorriso_process_msg_queues(xorriso,0);
 if(node_array!=NULL)
   free((char *) node_array);
 return(ret);
}


/* @param boss_iter Opaque handle to be forwarded to actions in ISO image
                    Set to NULL if calling this function from outside ISO world
*/
int Xorriso_rename(struct XorrisO *xorriso, void *boss_iter,
                   char *origin, char *dest, int flag)
{
 int ret, ol, dest_ret;
 char sfe[5*SfileadrL], eff_dest[SfileadrL], dir_adr[SfileadrL], *cpt;
 char *leafname, eff_origin[SfileadrL], sfe2[5*SfileadrL], *old_leafname;
 IsoImage *volume;
 IsoDir *origin_dir, *dest_dir;
 IsoNode *node, *iso_node;

#ifndef Libisofs_iso_dir_iter_sufficienT
 /* Ticket 127: A80301 - A80302
    I do not not deem IsoDirIter safe for node list manipulations.
    The parameter boss_iter once was intended to allow such but
    has now been downgraded to a mere check for eventual programming bugs.
 */
 if(boss_iter!=NULL) {
   sprintf(xorriso->info_text,
    "Program error: Xorriso_rename() was requested to delete iterated node %s",
       Text_shellsafe(origin, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
#endif /* Libisofs_iso_dir_iter_sufficienT */

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, origin, eff_origin, 0);
 if(ret<=0)
   return(ret);
 dest_ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, dest, eff_dest,1);
 if(dest_ret<0)
   return(dest_ret);
 if(dest_ret==0) { /* obtain eff_dest address despite it does not exist */
   ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, dest, eff_dest, 2);
   if(ret<=0)
     return(ret);
 }

 /* Prevent that destination is a subordinate of origin
    (that would be a black hole plopping out of the universe) */
 ol= strlen(eff_origin);
 if(ol==0) {
   sprintf(xorriso->info_text, "May not rename root directory");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 } else if(strcmp(eff_origin, eff_dest)==0) {
   sprintf(xorriso->info_text, "Ignored attempt to rename %s to itself",
           Text_shellsafe(eff_origin,sfe,0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(0);
 } else if(strncmp(eff_origin, eff_dest, ol)==0 &&
           (eff_dest[ol]==0 || eff_dest[ol]=='/')) {
   sprintf(xorriso->info_text,
           "May not rename %s to its own sub address %s",
           Text_shellsafe(eff_origin,sfe,0), Text_shellsafe(eff_dest,sfe2,0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }

 /* Check whether destination exists and may be not overwriteable */
 if(dest_ret==2 && xorriso->do_overwrite!=1) {
   sprintf(xorriso->info_text, "Renaming may not overwrite directory: %s",
           Text_shellsafe(eff_dest, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 } else if (dest_ret==1 && !xorriso->do_overwrite) {
   sprintf(xorriso->info_text, "Renaming may not overwite: %s",
           Text_shellsafe(eff_dest, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 } else if(dest_ret>0) {
   ret= Xorriso_rmi(xorriso, boss_iter, (off_t) 0, eff_dest, 1|8);
   if(ret<=0)
     return(0);
   if(ret==3) {
     sprintf(xorriso->info_text, "User revoked renaming of: %s",
             Text_shellsafe(eff_origin, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     return(0);
   }
 }

 /* Ensure existence of destination directory */
 strcpy(dir_adr, eff_dest);
 cpt= strrchr(dir_adr, '/');
 if(cpt==NULL)
   cpt= dir_adr+strlen(dir_adr);
 *cpt= 0;
 if(dir_adr[0]!=0) {
   ret= Xorriso_graft_in(xorriso, boss_iter, NULL, dir_adr,
                         (off_t) 0, (off_t) 0, 1);
   if(ret<=0)
     return(ret);
 }

 /* Move node */
 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 Xorriso_node_from_path(xorriso, volume, dir_adr, &iso_node, 0);
 dest_dir= (IsoDir *) iso_node;
 strcpy(dir_adr, eff_origin);
 cpt= strrchr(dir_adr, '/');
 if(cpt==NULL)
   cpt= dir_adr+strlen(dir_adr);
 *cpt= 0;
 Xorriso_node_from_path(xorriso, volume, dir_adr, &iso_node, 0);
 origin_dir= (IsoDir *) iso_node;
 Xorriso_node_from_path(xorriso, volume, eff_origin, &node, 0);
 if(dest_dir==NULL || origin_dir==NULL || node==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "Internal error on rename: confirmed node turns out as NULL");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 ret= iso_node_take(node);
 if(ret<0) {
   Xorriso_process_msg_queues(xorriso,0);
   Xorriso_report_iso_error(xorriso, eff_dest, 0, "Cannot take", 0, "FATAL",1);
   sprintf(xorriso->info_text,
           "Internal error on rename: failed to take node");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 leafname= strrchr(eff_dest, '/');
 if(leafname==NULL)
   leafname= eff_dest;
 else
   leafname++;
 
 old_leafname= (char *) iso_node_get_name(node);
 if(strcmp(leafname, old_leafname)!=0)
   ret= iso_node_set_name(node, leafname);
 else
   ret= 1;
 if(ret<0) {
   Xorriso_process_msg_queues(xorriso,0);
   Xorriso_report_iso_error(xorriso, eff_dest, 0, "Cannot set name", 0,
                            "FAILURE", 1);
   return(-1);
 }
 Xorriso_process_msg_queues(xorriso,0);
 ret= iso_dir_add_node(dest_dir, node, 0);
 if(ret<0) {
   Xorriso_process_msg_queues(xorriso,0);
   Xorriso_report_iso_error(xorriso, eff_dest, 0, "Cannot add", 0, "FATAL", 1);
   sprintf(xorriso->info_text,
           "Internal error on rename: failed to insert node");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 return(1);
}


/* @param flag bit0= do not produce info message on success
   @return 1=success,
           0=was already directory, -1=was other type, -2=other error
*/
int Xorriso_mkdir(struct XorrisO *xorriso, char *path, int flag)
{
 int ret;
 char eff_path[SfileadrL], sfe[5*SfileadrL];

 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, path, eff_path, 1);
 if(ret<0)
   return(-2);
 if(ret>0) {
   sprintf(xorriso->info_text,"-mkdir: Address already existing %s",
          Text_shellsafe(eff_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,
                       (ret==2 ? "WARNING" : "FAILURE"), 0);
   return(-1+(ret==2));
 }
 ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, path, eff_path, 2);
 if(ret<0)
   return(-2);
 ret= Xorriso_graft_in(xorriso, NULL, NULL, eff_path, (off_t) 0, (off_t) 0, 1);
 if(ret<=0)
   return(-2);
 if(!(flag&1)) {
   sprintf(xorriso->info_text, "Created directory in ISO image: %s\n",
           Text_shellsafe(eff_path,sfe,0));
   Xorriso_info(xorriso, 0);
 }
 return(1);
}


/* @param flag bit0= count results rather than storing them
               bit1= this is a recursion
               bit2= prepend wd (automatically done if wd[0]!=0)
*/
int Xorriso_obtain_pattern_files_i(
       struct XorrisO *xorriso, char *wd, IsoDir *dir,
       int *filec, char **filev, int count_limit, off_t *mem,
       int *dive_count, int flag)
{
 int ret, failed_at;
 IsoDirIter *iter= NULL;
 IsoNode *node;
 char *name;

#ifdef Xorriso_fat_local_meM
 char adr[SfileadrL];
#else /* Xorriso_fat_local_meM */
 char *adr= NULL;

 adr= malloc(SfileadrL);
 if(adr==NULL) {
   Xorriso_no_malloc_memory(xorriso, &adr, 0);
   {ret= -1; goto ex;}
 }
#endif /* ! Xorriso_fat_local_meM */


 if(!(flag&2))
   *dive_count= 0;
 else
   (*dive_count)++;
 ret= Xorriso_check_for_root_pattern(xorriso, filec, filev, count_limit,
                                     mem, (flag&1)|2);
 if(ret!=2)
   goto ex;

 ret= iso_dir_get_children(dir, &iter);
 if(ret<0) {
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   {ret= -1; goto ex;}
 }
 while(iso_dir_iter_next(iter, &node) == 1) {
   name= (char *) iso_node_get_name(node);
   ret= Xorriso_make_abs_adr(xorriso, wd, name, adr, flag&4);
   if(ret<=0)
     goto ex;
   ret= Xorriso_regexec(xorriso, adr, &failed_at, 1);
   if(ret) { /* no match */
     if(failed_at <= *dive_count) /* no hope for a match */
 continue;

     if(!LIBISO_ISDIR(node)) {

       /* >>> How to deal with softlinks ? */

 continue;
     }
     /* dive deeper */
     ret= Xorriso_obtain_pattern_files_i(
                          xorriso, adr, (IsoDir *) node,
                          filec, filev, count_limit, mem, dive_count, flag|2);
     if(ret<=0)
       goto ex;
   } else {
     ret= Xorriso_register_matched_adr(xorriso, adr, count_limit,
                                       filec, filev, mem, (flag&1)|2);
     if(ret<=0)
       goto ex;
   }
 } 
 ret= 1;
ex:;

#ifndef Xorriso_fat_local_meM
 if(adr!=NULL)
   free(adr);
#endif /* ! Xorriso_fat_local_meM */

 if(flag&2)
   (*dive_count)--;
 return(ret);
}


/* @param flag bit0= a match count !=1 is a FAILURE event
               bit1= with bit0 tolerate 0 matches if pattern is a constant
*/
int Xorriso_expand_pattern(struct XorrisO *xorriso,
                           int num_patterns, char **patterns, int extra_filec,
                           int *filec, char ***filev, off_t *mem, int flag)
{
 int ret, count= 0, abs_adr= 0, i, was_count, was_filec;
 int nonconst_mismatches= 0, dive_count= 0;
 char sfe[5*SfileadrL];
 IsoImage *volume;
 IsoDir *dir= NULL, *root_dir;
 IsoNode *iso_node;

 *filec= 0;
 *filev= NULL;

 xorriso->search_mode= 3;
 xorriso->structured_search= 1;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 root_dir= iso_image_get_root(volume);
 if(root_dir==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "While expanding pattern : Cannot obtain root node of ISO image");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   ret= -1; goto ex;
 }

 for(i= 0; i<num_patterns; i++) {
   ret=  Xorriso_prepare_expansion_pattern(xorriso, patterns[i], 0);
   if(ret<=0)
     return(ret);
   if(ret==2)
     abs_adr= 4;
   if(patterns[i][0]=='/' || abs_adr) {
     dir= root_dir;
     abs_adr= 4;
   } else {
     /* This is done so late to allow the following:
        It is not an error if xorriso->wdi does not exist yet, but one may
        not use it as base for relative address searches.
     */
     ret= Xorriso_node_from_path(xorriso, volume, xorriso->wdi, &iso_node, 1);
     dir= (IsoDir *) iso_node;
     if(ret<=0) {
       Xorriso_process_msg_queues(xorriso,0);
       sprintf(xorriso->info_text,
  "While expanding pattern %s : Working directory does not exist in ISO image",
               Text_shellsafe(patterns[i], sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }
     if(!LIBISO_ISDIR((IsoNode *) dir)) {
       sprintf(xorriso->info_text,
           "Working directory path does not lead to a directory in ISO image");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }
   }

   /* count the matches */
   was_count= count;
   ret= Xorriso_obtain_pattern_files_i(xorriso, "", dir, &count, NULL, 0,
                                       mem, &dive_count, 1 | abs_adr);
   if(ret<=0)
     goto ex;
   if(was_count==count && strcmp(patterns[i],"*")!=0 && (flag&3)!=1) {
     count++;
     Xorriso_eval_nonmatch(xorriso, patterns[i], &nonconst_mismatches, mem, 0);
   }
 }

 ret= Xorriso_check_matchcount(xorriso, count, nonconst_mismatches,
                               num_patterns, patterns, (flag&1)|2);
 if(ret<=0)
   goto ex;
 count+= extra_filec;
 mem+= extra_filec*sizeof(char *);
 if(count<=0)
   {ret= 0; goto ex;}
 ret= Xorriso_alloc_pattern_mem(xorriso, *mem, count, filev, 0);
 if(ret<=0)
   goto ex;
 /* now store addresses */
 for(i= 0; i<num_patterns; i++) {
   ret=  Xorriso_prepare_expansion_pattern(xorriso, patterns[i], 0);
   if(ret<=0)
     return(ret);
   if(ret==2)
     abs_adr= 4;

   was_filec= *filec;
   ret= Xorriso_obtain_pattern_files_i(xorriso, "", dir, filec, *filev, count,
                                       mem, &dive_count, abs_adr);
   if(ret<=0)
     goto ex;
   if(was_filec == *filec && strcmp(patterns[i],"*")!=0) {
     (*filev)[*filec]= strdup(patterns[i]);
     if((*filev)[*filec]==NULL) {
       (*mem)= strlen(patterns[i])+1;
       Xorriso_no_pattern_memory(xorriso, *mem, 0);
       ret= -1; goto ex;
     }
     (*filec)++;
   } 
 }
 ret= 1;
ex:;
 if(ret<=0) {
   if(filev!=NULL)
     Sfile_destroy_argv(&count, filev, 0);
   *filec= 0;
 }
 return(ret);
}


int Xorriso_set_st_mode(struct XorrisO *xorriso, char *in_path,
                        mode_t mode_and, mode_t mode_or, int flag)
{
 mode_t mode= 0;
 int ret;
 IsoNode *node;
 char sfe[5*SfileadrL], path[SfileadrL];

 ret= Xorriso_get_node_by_path(xorriso, in_path, path, &node, 0);
 if(ret<=0)
   return(ret);
 mode= iso_node_get_permissions(node);
 mode= (mode & mode_and) | mode_or;
 iso_node_set_permissions(node, mode);
 iso_node_set_ctime(node, time(NULL));
 sprintf(xorriso->info_text,"Permissions now: %-5.5o  %s",
         mode, Text_shellsafe(path, sfe, 0));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


int Xorriso_set_uid(struct XorrisO *xorriso, char *in_path, uid_t uid,
                    int flag)
{
 int ret;
 IsoNode *node;

 ret= Xorriso_get_node_by_path(xorriso, in_path, NULL, &node, 0);
 if(ret<=0)
   return(ret);
 iso_node_set_uid(node, uid);
 iso_node_set_ctime(node, time(NULL));
 xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


int Xorriso_set_gid(struct XorrisO *xorriso, char *in_path, gid_t gid,
                    int flag)
{
 int ret;
 IsoNode *node;

 ret= Xorriso_get_node_by_path(xorriso, in_path, NULL, &node, 0);
 if(ret<=0)
   return(ret);
 iso_node_set_gid(node, gid);
 iso_node_set_ctime(node, time(NULL));
 xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


/* @parm flag  bit0= atime, bit1= ctime, bit2= mtime, bit8=no auto ctime */
int Xorriso_set_time(struct XorrisO *xorriso, char *in_path, time_t t,
                    int flag)
{
 int ret;
 IsoNode *node;

 ret= Xorriso_get_node_by_path(xorriso, in_path, NULL, &node, 0);
 if(ret<=0)
   return(ret);
 if(flag&1)
   iso_node_set_atime(node, t);
 if(flag&2)
   iso_node_set_ctime(node, t);
 if(flag&4)
   iso_node_set_mtime(node, t);
 if(!(flag&(2|256)))
   iso_node_set_ctime(node, time(NULL));
 xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
}


/* @param flag bit0= not a command parameter (directory iteration or recursion)
               bit1= do not count deleted files with rm and rm_r
   @return <=0 error,
             1=ok
             2=ok, node has been deleted,
             3=ok, do not dive into directory (e.g. because it is a split file)
*/
int Xorriso_findi_action(struct XorrisO *xorriso, struct FindjoB *job,
                         IsoDirIter *boss_iter, off_t boss_mem,
                         char *abs_path, char *show_path, 
                         IsoNode *node, int depth, int flag)
{
 int ret= 0, type, action= 0, hflag, deleted= 0, no_dive= 0;
 uid_t user= 0;
 gid_t group= 0;
 time_t date= 0;
 mode_t mode_or= 0, mode_and= ~1;
 char *target, sfe[5*SfileadrL], *iso_prefix;
 struct FindjoB *subjob;
 struct stat dir_stbuf;

 action= Findjob_get_action_parms(job, &target, &user, &group,
                                &mode_and, &mode_or, &type, &date, &subjob, 0);
 if(action<0)
   action= 0;

 hflag= 16*!(flag&2);
 if(action==1) { /* rm (including rmdir) */
   ret= Xorriso_fake_stbuf(xorriso, abs_path, &dir_stbuf, &node, 1);
   if(ret>0) {
     if(S_ISDIR(dir_stbuf.st_mode))
       hflag= 2;
     ret= Xorriso_rmi(xorriso, boss_iter, boss_mem, abs_path, hflag);
     deleted= 1;
   }
 } else if(action==2) { /* rm_r */
   ret= Xorriso_rmi(xorriso, boss_iter, boss_mem, abs_path, 1|hflag);
   deleted= 1;
 } else if(action==3) {

   /* >>> mv target */;

 } else if(action==4) { /* chown */
   ret= Xorriso_set_uid(xorriso, abs_path, user, 0);
 } else if(action==5) { /* chgrp */
   ret= Xorriso_set_gid(xorriso, abs_path, group, 0);
 } else if(action==6) { /* chmod */
   ret= Xorriso_set_st_mode(xorriso, abs_path, mode_and, mode_or, 0);
 } else if(action==7) { /* alter_date */
   ret= Xorriso_set_time(xorriso, abs_path, date, type&7);
 } else if(action==8) { /* lsdl */
   ret= Xorriso_ls_filev(xorriso, "", 1, &abs_path, (off_t) 0, 1|2|8);
 } else if(action>=9 && action<=13) { /* actions which have own findjobs */
   Findjob_set_start_path(subjob, abs_path, 0);
   ret= Xorriso_findi(xorriso, subjob, boss_iter, boss_mem, NULL,
                      abs_path, &dir_stbuf, depth, 1);
 } else if(action==14 || action==17) { /* compare , update */
   Findjob_get_start_path(job, &iso_prefix, 0);
   ret= Xorriso_find_compare(xorriso, (void *) boss_iter, abs_path,
                             iso_prefix, target, (action==17)|((flag&1)<<1));
   if(ret==2)
     deleted= 1;
   if(ret==3)
     no_dive= 1;
   if(ret>=0)
     ret= 1;
 } else if(action==16 || action==18) { /* not_in_iso , add_missing */
   ;
 } else { /* includes : 15 in_iso */
   sprintf(xorriso->result_line, "%s\n", Text_shellsafe(show_path, sfe, 0));
   Xorriso_result(xorriso, 0);
   ret= 1;
 }
 if(ret<=0)
   return(ret);
 if(deleted)
   return(2);
 if(no_dive)
   return(3);
 return(1);
}


/* @param flag bit0= recursion
               bit1= do not count deleted files with rm and rm_r
   @return <=0 error, 1= ok , 2= dir node and path has been deleted
*/
int Xorriso_findi(struct XorrisO *xorriso, struct FindjoB *job,
                  void *boss_iter, off_t boss_mem,
                  void *dir_node_generic, char *dir_path,
                  struct stat *dir_stbuf, int depth, int flag)
{
 int ret, action= 0, hflag, deleted= 0, no_dive= 0;
 IsoDirIter *iter= NULL;
 IsoDir *dir_node= NULL;
 IsoNode *node, *iso_node;
 IsoImage *volume= NULL;
 struct stat stbuf;
 char *name;
 off_t mem;
 IsoNode **node_array= NULL;
 int node_count, node_idx;
#ifdef Xorriso_fat_local_meM
 char path[SfileadrL], abs_path[SfileadrL];
#else /* Xorriso_fat_local_meM */
 char *path= NULL, *abs_path= NULL;

 path= malloc(SfileadrL);
 abs_path= malloc(SfileadrL);
 if(path==NULL || abs_path==NULL) {
   Xorriso_no_malloc_memory(xorriso, &path, 0);
   {ret= -1; goto ex;}
 }
#endif /* ! Xorriso_fat_local_meM */

 action= Findjob_get_action(job, 0);
 if(action<0)
   action= 0;

 dir_node= (IsoDir *) dir_node_generic;
 if(dir_node==NULL) {
   ret= Xorriso_get_volume(xorriso, &volume, 0);
   if(ret<=0)
     {ret= -1; goto ex;}
   ret= Xorriso_make_abs_adr(xorriso, xorriso->wdi, dir_path, path, 1|2|4);
   if(ret<=0)
     goto ex;
   ret= Xorriso_node_from_path(xorriso, volume, path, &iso_node, 0);
   dir_node= (IsoDir *) iso_node;
   if(ret<=0)
     {ret= 0; goto ex;}
   ret= Xorriso_fake_stbuf(xorriso, "", dir_stbuf, &iso_node, 1);
   if(ret<=0)
     goto ex;

   name= strrchr(dir_path, '/');
   if(name==NULL)
     name= dir_path;
   else
     name++;
   ret= Findjob_test(job, name, NULL, dir_stbuf, depth, 0);
   if(ret<0)
     goto ex;
   if(ret>0) {
     ret= Xorriso_findi_action(xorriso, job,
                               (IsoDirIter *) boss_iter, boss_mem,
                               path, dir_path, (IsoNode *) dir_node, depth,
                               flag&(1|2));
     if(ret<=0)
       goto ex;
     if(ret==2) {
       /* re-determine dir_node in case it has a new persona */ 
       ret= Xorriso_node_from_path(xorriso, volume, path, &iso_node, 1);
       if(ret==0) {
         deleted= 1;
         {ret= 2; goto ex;}
       }
       if(ret<0)
         {ret= 0; goto ex;}
       dir_node= (IsoDir *) iso_node;
       ret= Xorriso_fake_stbuf(xorriso, "", dir_stbuf, &iso_node, 1);
       if(ret<=0)
         goto ex;
     }
     if(ret==3)
       no_dive= 1;
   }
 }
 if(no_dive || !LIBISO_ISDIR((IsoNode *) dir_node))
   {ret= 1; goto ex;}
 if(Xorriso_is_split(xorriso, dir_path, (IsoNode *) dir_node, 1)>0)
   {ret= 1; goto ex;}

 mem= boss_mem;
 hflag= 1;
 if(action==1 || action==2 || action==3 || action==17)
   hflag|= 2; /* need freedom to manipulate image */
 if(action==14 || action==17)
   hflag|= 4; /* need LBA sorted iteration for good data reading performance */
 ret= Xorriso_findi_iter(xorriso, dir_node, &mem,
                         &iter, &node_array, &node_count, &node_idx,
                         &node, hflag);
 if(ret<=0)
   goto ex;
 while(1) {
   ret= Xorriso_findi_iter(xorriso, dir_node, &mem, &iter,
                           &node_array, &node_count, &node_idx, &node, 0);
   if(ret<0)
     goto ex;
   if(ret==0 || xorriso->request_to_abort)
 break;
   name= (char *) iso_node_get_name(node);
   ret= Xorriso_make_abs_adr(xorriso, dir_path, name, path, 4);
   if(ret<=0)
     goto ex;
   ret= Xorriso_fake_stbuf(xorriso, "", &stbuf, &node, 1);
   if(ret<0)
     goto ex;
   if(ret==0)
 continue;

/* ??? This seems to be redundant with the single test above
   ??? Should i dive in unconditionally and leave out test and action here ?
   ??? Then do above test unconditionally ?
   --- Seems that the current configuration represents the special
       handling of the find start path with mount points. Dangerous to change.
*/
   ret= Findjob_test(job, name, dir_stbuf, &stbuf, depth, 0);
   if(ret<0)
     goto ex;
   if(ret>0) {
     ret= Xorriso_make_abs_adr(xorriso, xorriso->wdi, path, abs_path, 1|2|4);
     if(ret<=0)
       goto ex;
     ret= Xorriso_findi_action(xorriso, job, iter, mem,
                               abs_path, path, node, depth, 1|(flag&2));
     if(ret==2) { /* node has been deleted */
       /* re-determine node in case it has a new persona */ 
       if(volume==NULL) {
         ret= Xorriso_get_volume(xorriso, &volume, 0);
         if(ret<=0)
           {ret= -1; goto ex;}
       }
       ret= Xorriso_node_from_path(xorriso, volume, abs_path, &node, 1);
       if(ret==0)
 continue;
       if(ret<0)
         {ret= 0; goto ex;}
       ret= Xorriso_fake_stbuf(xorriso, "", &stbuf, &node, 1);
       if(ret<0)
         goto ex;
       if(ret==0)
 continue;
     }
     no_dive= (ret==3);
     if(ret<=0) {
       if(Xorriso_eval_problem_status(xorriso, ret, 1|2)<0)
         goto ex;
     }
   }

   if(S_ISDIR(stbuf.st_mode) && !no_dive) {
     ret= Xorriso_findi(xorriso, job, (void *) iter, mem,
                        (void *) node, path, &stbuf, depth+1, flag|1);
     if(ret<0)
       goto ex;
   }
 }

 ret= 1;
ex:;

#ifndef Xorriso_fat_local_meM
 if(path!=NULL)
   free(path);
 if(abs_path!=NULL)
   free(abs_path);
#endif /* ! Xorriso_fat_local_meM */

 Xorriso_process_msg_queues(xorriso,0);

 Xorriso_findi_iter(xorriso, dir_node, &mem, &iter, &node_array, &node_count,
                    &node_idx, &node, (1<<31));
 if(ret<=0)
   return(ret);
 if(deleted)
   return(2);
 return(1);
}


/* @param flag bit0= do not mark image as changed */
int Xorriso_set_volid(struct XorrisO *xorriso, char *volid, int flag)
{
 int ret;
 IsoImage *volume;

 if(xorriso->in_volset_handle == NULL)
   return(2);
 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 iso_image_set_volume_id(volume, volid);
 if(!(flag&1))
   xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 sprintf(xorriso->info_text,"Volume ID: '%s'",iso_image_get_volume_id(volume));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 return(1);
}


int Xorriso_get_volid(struct XorrisO *xorriso, char volid[33], int flag)
{
 int ret;
 IsoImage *volume;

 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 strncpy(volid, iso_image_get_volume_id(volume), 32);
 volid[32]= 0;
 return(1);
}


/* @param flag bit0= do not mark image as changed */
int Xorriso_set_publisher(struct XorrisO *xorriso, char *name, int flag)
{
 int ret;
 IsoImage *volume;

 if(xorriso->in_volset_handle == NULL)
   return(2);
 ret= Xorriso_get_volume(xorriso, &volume, 0);
 if(ret<=0)
   return(ret);
 iso_image_set_publisher_id(volume, name);
 if(!(flag&1))
   xorriso->volset_change_pending= 1;
 Xorriso_process_msg_queues(xorriso,0);
 sprintf(xorriso->info_text,"Publisher: '%s'",
         iso_image_get_publisher_id(volume));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 return(1);
}


/* @param flag bit0=prepare for a burn run */
int Xorriso_set_abort_severity(struct XorrisO *xorriso, int flag)
{
 int ret, abort_on_number;
 char *sev_text;
 static int note_number= -1, failure_number= -1;

 if(note_number==-1)
   Xorriso__text_to_sev("NOTE", &note_number, 0);
 if(failure_number==-1)
   Xorriso__text_to_sev("FAILURE", &failure_number, 0);
 sev_text= xorriso->abort_on_text;
 ret= Xorriso__text_to_sev(xorriso->abort_on_text, &abort_on_number, 0);
 if(ret<=0)
   return(ret);
 if(abort_on_number<note_number)
   sev_text= "NOTE";
 else if(abort_on_number>failure_number)
   sev_text= "FAILURE";
 ret= iso_set_abort_severity(sev_text);
 return(ret>=0);
}


int Xorriso_report_lib_versions(struct XorrisO *xorriso, int flag)
{
 int major, minor, micro;
 int req_major, req_minor, req_micro;

 iso_lib_version(&major, &minor, &micro);
 isoburn_libisofs_req(&req_major, &req_minor, &req_micro);
 sprintf(xorriso->result_line,
         "libisofs   in use :  %d.%d.%d  (min. %d.%d.%d)\n",
         major, minor, micro, req_major, req_minor, req_micro);
 Xorriso_result(xorriso, 0);
 burn_version(&major, &minor, &micro);
 isoburn_libburn_req(&req_major, &req_minor, &req_micro);
 sprintf(xorriso->result_line,
         "libburn    in use :  %d.%d.%d  (min. %d.%d.%d)\n",
         major, minor, micro, req_major, req_minor, req_micro);
 Xorriso_result(xorriso, 0);
 isoburn_version(&major, &minor, &micro);
 sprintf(xorriso->result_line,
         "libisoburn in use :  %d.%d.%d  (min. %d.%d.%d)\n",
         major, minor, micro,
         isoburn_header_version_major, isoburn_header_version_minor,
         isoburn_header_version_micro);
 Xorriso_result(xorriso, 0);
 return(1);
}


/* @param flag bit0= -inq
               bit1= -checkdrive
*/
int Xorriso_atip(struct XorrisO *xorriso, int flag)
{
 int ret, profile_number= 0;
 char *respt, profile_name[80];
 double x_speed_max, x_speed_min= -1.0;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 enum burn_disc_status s;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                           "on attempt to print drive and media info", 2);
 if(ret<=0)
   return(0);
 respt= xorriso->result_line;
 sprintf(respt, "Device type    :");
 ret= burn_drive_get_drive_role(drive);
 if(ret==0)
   sprintf(respt+strlen(respt), "%s\n", "Emulated (null-drive)");
 else if(ret==2)
   sprintf(respt+strlen(respt), "%s\n",
           "Emulated (stdio-drive, 2k random read-write)");
 else if(ret==3)
   sprintf(respt+strlen(respt), "%s\n",
           "Emulated (stdio-drive, sequential write-only)");
 else if(ret!=1)
   sprintf(respt+strlen(respt), "%s\n","Emulated (stdio-drive)");
 else
   sprintf(respt+strlen(respt), "%s\n","Removable CD-ROM");
 sprintf(respt+strlen(respt), "Vendor_info    : '%s'\n",dinfo->vendor);
 sprintf(respt+strlen(respt), "Identifikation : '%s'\n",dinfo->product);
 sprintf(respt+strlen(respt), "Revision       : '%s'\n",dinfo->revision);
 Xorriso_result(xorriso,1);
 if(flag&1)
   return(1);
 sprintf(respt, "Driver flags   : BURNFREE\n");
 sprintf(respt+strlen(respt), "Supported modes: SAO TAO\n");
 Xorriso_result(xorriso,1);
 if(flag&2)
   return(1);

 s= burn_disc_get_status(drive);
 ret= burn_disc_get_profile(drive,&profile_number,profile_name);
 if(ret<=0) {
   profile_number= 0;
   strcpy(profile_name, "-unidentified-");
 }
 if(s != BURN_DISC_UNSUITABLE) {
   ret= burn_disc_read_atip(drive);
   if(ret>0) {
     ret= burn_drive_get_min_write_speed(drive);
     x_speed_min= ((double) ret)/176.4;
   }
 }
 if(s==BURN_DISC_EMPTY) {
   sprintf(respt, "Current: none\n");
   Xorriso_result(xorriso,1);
   return(1);
 } else 
   sprintf(respt, "Current: %s\n",profile_name);
 Xorriso_result(xorriso,1);
 if(strstr(profile_name,"DVD")==profile_name) {
   sprintf(respt, "book type:       %s (emulated booktype)\n", profile_name);
   Xorriso_result(xorriso,1);
   if(profile_number == 0x13) {
     sprintf(respt, "xorriso: message for sdvdbackup: \"(growisofs mode Restricted Overwrite)\"\n");
     Xorriso_result(xorriso,1);
   }
 } else {
   sprintf(respt, "ATIP info from disk:\n");
   Xorriso_result(xorriso,1);
   if(burn_disc_erasable(drive))
     sprintf(respt, "  Is erasable\n");
   else
     sprintf(respt, "  Is not erasable\n");
   Xorriso_result(xorriso,1);
   { int start_lba,end_lba,min,sec,fr;
     ret= burn_drive_get_start_end_lba(drive,&start_lba,&end_lba,0);
     if(ret>0) {
       burn_lba_to_msf(start_lba,&min,&sec,&fr);
       sprintf(respt, "  ATIP start of lead in:  %d (%-2.2d:%-2.2d/%-2.2d)\n",
              start_lba,min,sec,fr);
       Xorriso_result(xorriso,1);
       burn_lba_to_msf(end_lba,&min,&sec,&fr);
       sprintf(respt, "  ATIP start of lead out: %d (%-2.2d:%-2.2d/%-2.2d)\n",
              end_lba,min,sec,fr);
       Xorriso_result(xorriso,1);
     }
   }
   ret= burn_drive_get_write_speed(drive);
   x_speed_max= ((double) ret)/176.4;
   if(x_speed_min<0)
     x_speed_min= x_speed_max;
   sprintf(respt,
          "  1T speed low:  %.f 1T speed high: %.f\n",x_speed_min,x_speed_max);
   Xorriso_result(xorriso,1);
 }
 return(1);
}


/* @param write_start_address  is valid if >=0    
   @param tsize                is valid if >0
   @param flag bit0= grow_overwriteable_iso
               bit1= do_isosize
*/
int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
                       char *track_source, off_t tsize, int flag)
{
 int ret, fd, unpredicted_size, profile_number, is_cd= 0, dummy, nwa= -1;
 int isosize= -1, i, full_size, do_isosize;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 struct burn_write_opts *burn_options;
 struct burn_disc *disc= NULL;
 struct burn_session *session;
 struct burn_track *track;
 struct stat stbuf; 
 off_t fixed_size= 0;
 struct burn_source *data_src, *fifo_src;
 enum burn_disc_status disc_state;
 char reasons[BURN_REASONS_LEN], sfe[5*SfileadrL], profile_name[80];
 char head_buffer[64*1024], *headpt;

 do_isosize= !!(flag&2);
 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to burn track", 2);
 if(ret<=0)
   return(0);
 ret= Xorriso_make_write_options(xorriso, drive, &burn_options, 0);
 if(ret<=0)
   goto ex;

 disc= burn_disc_create();
 session= burn_session_create();
 ret= burn_disc_add_session(disc,session,BURN_POS_END);
 if(ret==0) {
   sprintf(xorriso->info_text, "Cannot add session object to disc object.");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   goto ex;
 }
 track= burn_track_create();
 if(track_source[0] == '-' && track_source[1] == 0) {
   fd= 0;
 } else {
   fd= open(track_source, O_RDONLY);
   if(fd>=0)
     if(fstat(fd,&stbuf)!=-1)
       if((stbuf.st_mode&S_IFMT)==S_IFREG)
         fixed_size= stbuf.st_size;
 }
 if(fixed_size==0)
   unpredicted_size= 1;

 data_src= NULL;
 if(fd>=0)
   data_src= burn_fd_source_new(fd, -1, fixed_size);
 if(data_src==NULL) {
   sprintf(xorriso->info_text, "Could not open data source %s",
           Text_shellsafe(track_source,sfe,0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
   ret= 0; goto ex;
 }
 if(do_isosize && xorriso->fs < 64)
   xorriso->fs= 64;
 fifo_src= burn_fifo_source_new(data_src, 2048, xorriso->fs, 0);
 if(fifo_src == NULL) {
   sprintf(xorriso->info_text, "Could not create fifo object of 4 MB");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   ret= 0; goto ex;
 }
 xorriso->pacifier_fifo= fifo_src;
 if(burn_track_set_source(track, fifo_src)!=BURN_SOURCE_OK) {
   sprintf(xorriso->info_text,
           "Cannot attach source object to track object");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   ret= 0; goto ex;
 }
 burn_session_add_track(session, track, BURN_POS_END);
 burn_source_free(data_src);

 if(flag&1)
   /* consider overwriteables with ISO as appendable */
   disc_state= isoburn_disc_get_status(drive);
 else
   /* handle overwriteables as always blank */
   disc_state= burn_disc_get_status(drive);

 if(disc_state == BURN_DISC_BLANK || disc_state == BURN_DISC_APPENDABLE) {
   /* ok */;
 } else {
   if(disc_state == BURN_DISC_FULL) {
     sprintf(xorriso->info_text,
          "Closed media with data detected. Need blank or appendable media.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     if(burn_disc_erasable(drive)) {
       sprintf(xorriso->info_text, "Try --blank_fast\n");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
     }
   } else if(disc_state == BURN_DISC_EMPTY) {
     sprintf(xorriso->info_text, "No media detected in drive");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   } else {
     sprintf(xorriso->info_text,
             "Cannot recognize state of drive and media");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   }
   ret= 0; goto ex;
 }
 if(isoburn_needs_emulation(drive))
   burn_write_opts_set_multi(burn_options, 0);

 if(tsize > 0) {
   fixed_size= tsize;
   burn_track_set_size(track, fixed_size);
 }
 if(do_isosize) {
   ret= burn_fifo_peek_data(xorriso->pacifier_fifo, head_buffer, 64*1024, 0);
   if(ret<=0) {
     Xorriso_process_msg_queues(xorriso,0);
     sprintf(xorriso->info_text,
             "Cannot obtain first 64 kB from input stream."); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto ex;
   }
   /* read isosize from head_buffer, not from media*/
   ret= isoburn_read_iso_head(drive, 0, &isosize, head_buffer, (1<<13));
   if(ret<=0) {
     Xorriso_process_msg_queues(xorriso,0);
     sprintf(xorriso->info_text,
             "Option -isosize given but data stream seems not to be ISO 9660"); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto ex;
   }
   sprintf(xorriso->info_text, "Size of ISO 9660 image: %ds", isosize);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   fixed_size= ((off_t) (isosize)) * (off_t) 2048;
   burn_track_set_size(track, fixed_size);
 }

 ret= Xorriso_get_profile(xorriso, &profile_number, profile_name, 2);
 is_cd= (ret==2);

 if(isoburn_needs_emulation(drive)) {
   if(flag&1) {
     ret= isoburn_disc_track_lba_nwa(drive, burn_options, 0, &dummy, &nwa);
     if(ret<=0) {
       Xorriso_process_msg_queues(xorriso,0);
       sprintf(xorriso->info_text,
     "Cannot obtain next writeable address of emulated multi-session media\n");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }
     if(nwa==32)
       nwa= 0; /* No automatic toc emulation. Formatter might not be aware. */
     burn_write_opts_set_start_byte(burn_options,((off_t) nwa) * (off_t) 2048);
   } else {
     nwa= 0;
     burn_write_opts_set_start_byte(burn_options, (off_t) 0);
   }
 }

 if(write_start_address>=0) {
   nwa= write_start_address / (off_t) 2048;
   if(((off_t) nwa) * (off_t) 2048 < write_start_address )
     nwa++;
   burn_write_opts_set_start_byte(burn_options, ((off_t) nwa) * (off_t) 2048);
 }

 if(burn_write_opts_auto_write_type(burn_options, disc, reasons, 0) ==
    BURN_WRITE_NONE) {
   sprintf(xorriso->info_text,
           "Failed to find a suitable write mode with this media.\n");
   sprintf(xorriso->info_text+strlen(xorriso->info_text),
           "Reasons given:\n%s", reasons);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }

 ret= Xorriso_sanitize_image_size(xorriso, drive, disc, burn_options, 2);
 if(ret<=0) 
   goto ex;

 xorriso->run_state= 1; /* Indicate that burning has started */
 burn_disc_write(burn_options, disc);

 ret= Xorriso_pacifier_loop(xorriso, drive, 2|(is_cd<<4));
 if(ret<=0)
   goto ex;
 if(!burn_drive_wrote_well(drive)) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "libburn indicates failure with writing."); 
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   ret= 0; goto ex;
 }

 /* Update ISO header at lba 0 */
 if((flag&1) && nwa >= 32) {
   if(!do_isosize) {
     /* head_buffer was not filled yet. Read it from output media. */
     ret= isoburn_read_iso_head(drive, nwa, &isosize, head_buffer, 2);
     if(ret<=0) {
       Xorriso_process_msg_queues(xorriso,0);
       sprintf(xorriso->info_text,
               "Cannot read freshly written ISO image head"); 
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }
   }
   /* patch ISO header */
   full_size= nwa + isosize;
   headpt= head_buffer + 32*1024;
   for(i=0;i<4;i++)
     headpt[87-i]= headpt[80+i]= (full_size >> (8*i)) & 0xff;
   ret= burn_random_access_write(drive, (off_t) 0, head_buffer,
                                 (off_t) (64*1024), 1);
   if(ret<=0) {
     Xorriso_process_msg_queues(xorriso,0);
     sprintf(xorriso->info_text,
             "Cannot write new ISO image head to LBA 0"); 
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0; goto ex;
   }
 }

 sprintf(xorriso->info_text, "Writing to %s completed sucessfully.\n\n",
         Text_shellsafe(xorriso->outdev,sfe,0));
 Xorriso_info(xorriso, 0);
 ret= 1;
ex:;
 Xorriso_process_msg_queues(xorriso,0);
 if(disc!=NULL)
   burn_disc_free(disc);
 if(xorriso->pacifier_fifo!=NULL)
   burn_source_free(xorriso->pacifier_fifo);
 xorriso->pacifier_fifo= NULL;
 xorriso->run_state= 0; /* Indicate that burning has ended */
 return(ret);
}


/* @param flag bit1= outdev rather than indev
   @return <0 error, 0 = no profile to see , 1= ok , 2= ok, is CD profile
*/
int Xorriso_get_profile(struct XorrisO *xorriso, int *profile_number, 
                        char profile_name[80], int flag)
{
 int ret;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;

 *profile_number= 0;
 profile_name[0]= 0;
 if(((flag&2) && xorriso->out_drive_handle==NULL) ||
    ((!(flag&2)) && xorriso->in_drive_handle==NULL))
   return(0);
 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to determine media type", flag&2);
 if(ret<=0)
   return(0);
 ret=burn_disc_get_profile(drive, profile_number, profile_name);
 if(ret<=0)
   return(ret);
 if(*profile_number==0x08 || *profile_number==0x09 || *profile_number==0x0a)
   return(2);
 return(0);
}


int Xorriso_iso_file_open(struct XorrisO *xorriso, char *pathname,
                          void *node_pt, void **stream, int flag)
{
 int ret;
 char eff_path[SfileadrL];
 IsoNode *node= NULL;
 IsoFile *filenode= NULL;
 IsoStream *iso_stream= NULL;

/* for debugging
#define Libisofs_lba_tesT yes
*/
#ifdef Libisofs_lba_tesT
 uint32_t lba;
#endif

 *stream= NULL;
 if(flag&1) {
   node= (IsoNode *) node_pt;
 } else {
   ret= Xorriso_get_node_by_path(xorriso, pathname, eff_path, &node, 0);
   if(ret<=0)
     return(ret);
 }
 if(!LIBISO_ISREG(node)) {
   sprintf(xorriso->info_text,
           "Given path does not lead to a regular data file in the image");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }

#ifdef Libisofs_lba_tesT
 ret = iso_node_get_old_image_lba(node, &lba, 0);
 sprintf(xorriso->info_text, "%s : ret= %d , LBA= %lx",
         pathname, ret, (unsigned long) lba);
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
#endif

 filenode= (IsoFile *) node;
 iso_stream= iso_file_get_stream(filenode);
 if(iso_stream==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "Could not obtain source stream of file in the image for reading");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 ret= iso_stream_open(iso_stream);
 if(ret<0) {
   sprintf(xorriso->info_text,
           "Could not open data file in the image for reading");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 if(!iso_stream_is_repeatable(iso_stream)) {
   sprintf(xorriso->info_text,
           "The data production of the file in the image is one-time only");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   iso_stream_close(iso_stream);
   return(0);
 }
 Xorriso_process_msg_queues(xorriso,0);
 *stream= iso_stream;
 return(1);
}


int Xorriso_iso_file_read(struct XorrisO *xorriso, void *stream, char *buf,
                          int count, int flag)
{
 int ret, rcnt= 0;
 IsoStream *stream_pt;

 stream_pt= (IsoStream *) stream;

 while(rcnt<count) {
   ret= iso_stream_read(stream_pt, (void *) (buf+rcnt), (size_t) (count-rcnt));
   if(ret==0) /* EOF */
 break;
   if(ret<0) { /* error */
     Xorriso_process_msg_queues(xorriso,0);
     Xorriso_report_iso_error(xorriso, "", ret, "Error on read",
                              0, "FAILURE", 1 | ((ret == -1)<<2) );
     return(-1);
   }
   rcnt+= ret;
 }
 return(rcnt);
}


int Xorriso_iso_file_close(struct XorrisO *xorriso, void **stream, int flag)
{
 int ret;

 if(*stream==NULL)
   return(0);
 ret= iso_stream_close(*stream);
 if(ret==1)
   *stream= NULL;
 Xorriso_process_msg_queues(xorriso,0);
 return(ret);
}


/* @param flag bit0= in_node is valid, do not resolve iso_adr
               bit1= insist in complete collection of part files
*/
int Xorriso_identify_split(struct XorrisO *xorriso, char *iso_adr,
                           void *in_node,
                           struct SplitparT **parts, int *count,
                           struct stat *total_stbuf,  int flag)
{
 int ret, i, incomplete= 0, overlapping= 0;
 int partno, total_parts, first_total_parts= -1;
 off_t offset, bytes, total_bytes, first_total_bytes= -1, first_bytes= -1;
 off_t size, covered;

 IsoImage *volume;
 IsoDir *dir_node;
 IsoDirIter *iter= NULL;
 IsoNode *node;
 char *name;
 struct stat stbuf, first_stbuf;

 *count= 0;
 *parts= NULL;

 if(flag&1) {
   node= (IsoNode *) in_node;
 } else {
   ret= Xorriso_get_volume(xorriso, &volume, 0);
   if(ret<=0)
     return(-1);
   ret= Xorriso_node_from_path(xorriso, volume, iso_adr, &node, 1);
   if(ret<=0)
     return(-1);
 }
 if(!LIBISO_ISDIR(node))
   return(0);
 dir_node= (IsoDir *) node;

 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0) {
cannot_iter:;
   Xorriso_cannot_create_iter(xorriso, ret, 0);
   return(-1);
 }

 for(i= 0; iso_dir_iter_next(iter, &node) == 1; i++) {
   name= (char *) iso_node_get_name(node);
   ret= Splitpart__parse(name, &partno, &total_parts,
                         &offset, &bytes, &total_bytes, 0);
   if(ret<=0)
     {ret= 0; goto ex;}
   if(i==0) {
     first_total_parts= total_parts;
     first_bytes= bytes;
     first_total_bytes= total_bytes;
     Xorriso_fake_stbuf(xorriso, "", &first_stbuf, &node, 1);
     size= first_stbuf.st_size;
   } else {
     if(first_total_parts!=total_parts || first_total_bytes!=total_bytes ||
        (first_bytes!=bytes && partno!=total_parts))
       {ret= 0; goto ex;}
     Xorriso_fake_stbuf(xorriso, "", &stbuf, &node, 1);
     if(first_stbuf.st_mode != stbuf.st_mode ||
        first_stbuf.st_uid != stbuf.st_uid ||
        first_stbuf.st_gid != stbuf.st_gid ||
        first_stbuf.st_mtime != stbuf.st_mtime ||
        first_stbuf.st_ctime != stbuf.st_ctime)
       {ret= 0; goto ex;} 
     size= stbuf.st_size;
   }
   /* check for plausible size */
   if(!((partno<total_parts && size==bytes) ||
        (partno==total_parts && size<=bytes)))
     {ret= 0; goto ex;} 
   (*count)++;
 }
 if((*count)<=0)
   {ret= 0; goto ex;}

 ret= Splitparts_new(parts, (*count)+1, 0); /* (have one end marker item) */
 if(ret<=0)
   return(ret);

 iso_dir_iter_free(iter);
 ret= iso_dir_get_children(dir_node, &iter);
 if(ret<0)
   goto cannot_iter;
 for(i= 0; i<*count; i++) {
   ret= iso_dir_iter_next(iter, &node);
   if(ret!=1)
 break;
   name= (char *) iso_node_get_name(node);
   ret= Splitpart__parse(name, &partno, &total_parts,
                         &offset, &bytes, &total_bytes, 0);
   if(ret<=0)
     {ret= 0; goto ex;}
   ret= Splitparts_set(*parts, i, name, partno, total_parts, offset, bytes,
                       total_bytes, 0);
   if(ret<=0)
     goto ex;
 }

 Splitparts_sort(*parts, *count, 0);

 covered= 0;
 for(i= 0; i<*count; i++) {
   Splitparts_get(*parts, i, &name, &partno, &total_parts, &offset, &bytes,
                  &total_bytes, 0);
   if(offset>covered)
     incomplete= 1;
   else if(offset<covered)
     overlapping= 1;
   if(offset+bytes > covered)
     covered= offset+bytes;
 }
 if(total_bytes>covered)
   incomplete= 1;
 memcpy(total_stbuf, &first_stbuf, sizeof(struct stat));
 total_stbuf->st_size= total_bytes;
 ret= !(overlapping || ((flag&2)&&incomplete));
ex:;
 if(iter!=NULL)
   iso_dir_iter_free(iter);
 return(ret);
}


/* @param flag bit0= node is valid, do not resolve path
               bit1= insist in complete collection of part files
*/
int Xorriso_is_split(struct XorrisO *xorriso, char *path, void *node,
                     int flag)
{
 struct SplitparT *split_parts= NULL;
 int split_count= 0, ret;
 struct stat stbuf;

 ret= Xorriso_identify_split(xorriso, path, node, &split_parts,
                             &split_count, &stbuf, flag & 3);
 if(split_parts!=NULL)
   Splitparts_destroy(&split_parts, split_count, 0);
 return(ret>0);
}


int Xorriso_libburn_adr(struct XorrisO *xorriso, char *path, char adr[],
                        int flag)
{
 int ret;
 char local_adr[BURN_DRIVE_ADR_LEN];

 adr[0]= 0;
 ret= burn_drive_convert_fs_adr(path, local_adr);
 Xorriso_process_msg_queues(xorriso,0);
 if(ret<=0)
   return(ret);
 if(strlen(local_adr)>=SfileadrL)
   return(2);
 strcpy(adr, local_adr);
 return(1);
}


/* @param flag bit0= grow_overwriteable_iso
               bit1= obtain info from outdev
*/
int Xorriso_msinfo(struct XorrisO *xorriso, int *msc1, int *msc2, int flag)
{
 int ret, dummy;
 struct burn_drive *drive;
 struct burn_drive_info *dinfo;
 enum burn_disc_status disc_state;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to obtain msinfo", flag&2);
 if(ret<=0)
   return(ret);

 if(flag&1)
   disc_state= isoburn_disc_get_status(drive);
 else
   disc_state= burn_disc_get_status(drive);
 if(disc_state != BURN_DISC_APPENDABLE) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,
           "%s media is not appendable. Cannot obtain -msinfo.",
           (flag&2) ? "Output" : "Input");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 ret= isoburn_disc_get_msc1(drive, msc1);
 if(ret<=0) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text, "Cannot obtain address of most recent session");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 ret= isoburn_disc_track_lba_nwa(drive, NULL, 0, &dummy, msc2);
 if(ret<0) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text, "Cannot obtain next writeable address on media");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 return(1);
}