libisoburn/xorriso/parse_exec.c

/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.

   Copyright 2007-2010 Thomas Schmitt, <scdbackup@gmx.net>

   Provided under GPL version 2 or later.

   This file contains the implementation of functions which deal with parsing
   and interpretation of command input.
*/

#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif

#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <pwd.h>
#include <grp.h>
#include <sys/resource.h>
#include <sys/wait.h>



#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"


/* @param flag bit0= do not warn of wildcards
               bit1= these are disk_paths
*/
int Xorriso_end_idx(struct XorrisO *xorriso,
                    int argc, char **argv, int idx, int flag)
{
 int i, warned= 0;

 for(i= idx; i<argc; i++) {
   if(strcmp(argv[i], xorriso->list_delimiter)==0)
 break;
   if(!((flag&1) || warned))
     warned= Xorriso_warn_of_wildcards(xorriso, argv[i], flag&2);
 }
 return(i);
}


/* Returns a vector of strings which belong to an open ended arg list.
   If expansion is enabled, the vector might be allocated, else it is
   a pointer into the argv input vector.
   Thus the release of that memory is an expert task to be done by this
   function only. Use bit8 for that. With bit8 parameter argc MUST be the
   same value as with the call which might have allocated memory.
   @param xorriso The environment object
   @param argc Length of argv
   @param argv The vector with arguments, eventual list_delimiter ("--")
               and then eventual unrelated words
   @param idx  Start index in argv of the argument list
   @param optc Length of the effective possibly expanded option vector
   @param optv The option vector. Maybe a pointer into argv or maybe
               an own allocated vector.
   @param flag bit0= do not warn of wildcards
               bit1= these are disk_paths
               bit2= never expand wildcards
               bit3= do not expand last argument
               bit4= ignore last argument
               bit5= demand exactly one match
               bit6= with bit5 allow 0 matches if pattern is a constant
               bit7= silently tolerate empty argument list
               bit8= free the eventually allocated sub_vector
               bit9= always expand wildcards
*/
int Xorriso_opt_args(struct XorrisO *xorriso, char *cmd,
                     int argc, char **argv, int idx,
                     int *end_idx, int *optc, char ***optv, int flag)
{
 int i, do_expand, nump, was_empty= 0, filec= 0, ret;
 char **filev= NULL, **patterns= NULL;
 off_t mem= 0;

 if(flag&2)
   do_expand= (xorriso->do_disk_pattern==1 && !(flag&4)) || (flag & 512);
 else
   do_expand= (xorriso->do_iso_rr_pattern==1 && !(flag&4)) || (flag & 512);
 if(flag&256) {
   if(*optv<argv || *optv>=argv+argc)
     Sfile_destroy_argv(optc, optv, 0);
   return(1);
 }
 if(idx>=argc) {
   *end_idx= argc;
   *optc= 0;
   *optv= NULL;
   sprintf(xorriso->info_text, "%s : Not enough arguments given", cmd);
   if((flag & 128))
     return(1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 *end_idx= Xorriso_end_idx(xorriso, argc, argv, idx,
                           ((flag&1) || do_expand) | (flag&2));
 if(*end_idx<0)
   return(*end_idx);
 if((flag&16) && (*end_idx)>idx)
   (*end_idx)--;
 *optc= *end_idx - idx;
 *optv= argv+idx;
 if(*optc<=0 || !do_expand)
   return(1);
 patterns= calloc(*optc, sizeof(char *));
 if(patterns==NULL) {
no_memory:;
   sprintf(xorriso->info_text,
           "%s : Cannot allocate enough memory for pattern expansion", cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   {ret= -1; goto ex;}
 }
 nump= 0;
 if(flag&8) {
   was_empty= 1;
   mem+= strlen(argv[idx + *optc - 1])+1+sizeof(char *);
 }
 for(i= 0; i<*optc-!!(flag&8); i++) {
   if(argv[i + idx][0]==0) {
     was_empty++;
     mem+= sizeof(char *); /* as upper limit for size of an empty string */
 continue;
   }
   patterns[nump++]= argv[i + idx];
 }
 if(nump<=0) { /* Only empty texts. May the caller get happy with them. */
   free(patterns);
   return(1);
 }
 if(flag&2)
   ret= Xorriso_expand_disk_pattern(xorriso, nump, patterns, was_empty,
                                    &filec, &filev, &mem, (flag>>5)&3);
 else
   ret= Xorriso_expand_pattern(xorriso, nump, patterns, was_empty, 
                               &filec, &filev, &mem, (flag>>5)&3);
 if(ret<=0)
   {ret= 0; goto ex;}
 for(i= 0; i<was_empty; i++) {
   if(i==was_empty-1 && (flag&8))
     filev[filec++]= strdup(argv[idx + *optc - 1]);
   else
     filev[filec++]= strdup("");
   if(filev[filec-1]==NULL)
     goto no_memory;
 }

#ifdef Xorriso_verbous_pattern_expansioN
{ int l;
 sprintf(xorriso->info_text, "Pattern expansion yields %d items:", filec);
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 l= 0;
 xorriso->info_text[0]= 0;
 for(i= 0; i<filec; i++) {
   l= strlen(xorriso->info_text);
   if(l>0 && l+1+strlen(filev[i])>60) {
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
     xorriso->info_text[0]= 0;
     l= 0;
   }
   sprintf(xorriso->info_text+l, " %s", filev[i]);
 }
 l= strlen(xorriso->info_text);
 if(l>0)
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
}
#endif /* Xorriso_verbous_pattern_expansioN */

 ret= 1;
ex:;
 if(ret<=0) {
   if(patterns!=NULL)
     free((char *) patterns);
   Sfile_destroy_argv(&filec, &filev, 0);
 } else {
   *optc= filec;
   *optv= filev;
 }
 return(ret);
}


int Xorriso_get_problem_status(struct XorrisO *xorriso, char severity[80],
                               int flag)
{
 strcpy(severity, xorriso->problem_status_text);
 return(xorriso->problem_status);
}


int Xorriso_set_problem_status(struct XorrisO *xorriso, char *severity, 
                               int flag)
{
 char *sev_text= "ALL";
 int sev, ret;

 if(severity[0])
   sev_text= severity;
 ret= Xorriso__text_to_sev(sev_text, &sev, 0);
 if(ret<=0)
   return(0);
 xorriso->problem_status= sev;
 strcpy(xorriso->problem_status_text, sev_text);
 if(sev > xorriso->eternal_problem_status) {
   xorriso->eternal_problem_status= sev;
   strcpy(xorriso->eternal_problem_status_text, sev_text);
 }
 return(1);
}


/**
    @param flag       bit0= do not issue own event messages
                      bit1= take xorriso->request_to_abort as reason for abort
    @return           Gives the advice:
                        2= pardon was given, go on
                        1= no problem, go on
                        0= function failed but xorriso would not abort, go on
                       <0= do abort
                           -1 = due to problem_status
                           -2 = due to xorriso->request_to_abort
*/
int Xorriso_eval_problem_status(struct XorrisO *xorriso, int ret, int flag)
{
 static int sev= 0;
 if(sev==0)
   Xorriso__text_to_sev("SORRY", &sev, 0);

 if((flag&2) && xorriso->request_to_abort)
   return(-2);

 Xorriso_process_msg_queues(xorriso, 0);
 if(ret>0 && xorriso->problem_status <= 0)
   return(1);

 if(xorriso->problem_status < xorriso->abort_on_severity &&
    xorriso->problem_status > 0) {
   if(xorriso->problem_status >= sev && !(flag&1)) {
     sprintf(xorriso->info_text,
             "xorriso : NOTE : Tolerated problem event of severity '%s'\n",
             xorriso->problem_status_text);
     Xorriso_info(xorriso, 0);/* submit not as problem event */
   }
   ret= 2;
 } else if(xorriso->problem_status > 0) {
   sprintf(xorriso->info_text,
           "xorriso : aborting : -abort_on '%s' encountered '%s'\n",
           xorriso->abort_on_text, xorriso->problem_status_text);
   if(!(flag&1))
     Xorriso_info(xorriso, 0);/* submit not as problem event */
   ret= -1;
 } else if(ret>0)
   ret= 1;
 else
   ret= 2;
 return(ret);
}


/* @param flag bit0= a non-existing target of multiple sources is a directory
               bit1= all paths except the last one are disk_paths
               bit2= the last path is a disk_path
   @return <=0 is error, 1= leaf file object, 2= directory
*/
int Xorriso_cpmv_args(struct XorrisO *xorriso, char *cmd,
                      int argc, char **argv, int *idx,
                      int *optc, char ***optv, char eff_dest[SfileadrL],
                      int flag)
{
 int destc= 0, is_dir=0, end_idx, ret, i;
 char **destv= NULL;
 char sfe[5*SfileadrL];

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx,
                          (xorriso->do_iso_rr_pattern==1)|(flag&2));
 if(end_idx - *idx < 2) {
   sprintf(xorriso->info_text, "%s: not enough arguments", cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}
 }

 ret= Xorriso_opt_args(xorriso, cmd, argc, argv, *idx, &end_idx, optc, optv,
                       (flag&2)|16); /* ignore last argument */
 if(ret<=0)
   goto ex;
 /* demand one match, or 0 with a constant */
 ret= Xorriso_opt_args(xorriso, cmd, argc, argv, end_idx, &end_idx, &destc,
                       &destv, ((flag&4)>>1) | 32 | 64);
 if(ret<=0)
   goto ex;

 /* Evaluate target address */
 if(flag&4)
   ret= Xorriso_normalize_img_path(xorriso, xorriso->wdx, destv[0], eff_dest,
                                   2|4|16);
 else
   ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, destv[0], eff_dest,
                                   1);
 if(ret<0)
   {ret= 0; goto ex;}
 if(ret==2 || ((flag&1) && *optc > 1 && ret==0)) {
   is_dir= 1;
 } else if(*optc > 1) {
   for(i= 0; i<*optc; i++)
     Xorriso_msgs_submit(xorriso, 0, (*optv)[i], 0, "ERRFILE", 0);
   sprintf(xorriso->info_text,
        "%s: more than one origin given, destination is a non-directory: %s",
        cmd, Text_shellsafe(destv[0], sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto ex;}
 }
 if(ret==0) { /* compute complete eff_dest */
   ret= Xorriso_normalize_img_path(xorriso, xorriso->wdi, destv[0], eff_dest,
                                   2 | (flag&4));
   if(ret<0)
     {ret= 0; goto ex;}
 }

 ret= 1+is_dir;
ex:;
 Xorriso_opt_args(xorriso, cmd, argc, argv, *idx, &end_idx, &destc, &destv,
                  256);
 (*idx)= end_idx;
 return(ret);
}


/* @param flag bit0= with adr_mode sbsector: adr_value is possibly 16 too high
*/
int Xorriso_decode_load_adr(struct XorrisO *xorriso, char *cmd,
                            char *adr_mode, char *adr_value,
                            int *entity_code, char entity_id[81],
                            int flag)
{
 double num;
 int l;

 if(strcmp(adr_mode, "auto")==0)
   *entity_code= 0;
 else if(strcmp(adr_mode, "session")==0)
   *entity_code= 1;
 else if(strcmp(adr_mode, "track")==0)
   *entity_code= 2;
 else if(strcmp(adr_mode, "lba")==0 || strcmp(adr_mode, "sbsector")==0)
   *entity_code= 3 | ((flag&1) << 16);
 else if(strcmp(adr_mode, "volid")==0)
   *entity_code= 4;
 else {
   sprintf(xorriso->info_text, "%s: unknown address mode '%s'", cmd, adr_mode);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 l= strlen(adr_value);
 if(l==0)
   *entity_code= 0;

 if(*entity_code>=1 && *entity_code<= 3) {
   num= Scanf_io_size(adr_value, 0);
   if(*entity_code==3 &&
      (adr_value[l-1]<'0' || adr_value[l-1]>'9'))
     num/= 2048.0;
   sprintf(entity_id, "%.f", num);
 } else {
   if(strlen(adr_value)>80) {
     sprintf(xorriso->info_text, "%s: address value too long (80 < %d)",
             cmd, (int) strlen(adr_value));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     return(0);
   }
   strcpy(entity_id, adr_value);
 }
 return(1);
}

 
int Xorriso_check_name_len(struct XorrisO *xorriso, char *name, int size,
                           char *cmd, int flag)
{
 if(strlen(name) >= size) {
   sprintf(xorriso->info_text,
           "Name too long with option %s (%d > %d)", cmd,
           (int) strlen(name), size - 1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 return(1);
}
 


/* @return <0 error , >=0 number of skipped dashes
*/
int Xorriso_normalize_command(struct XorrisO *xorriso, char *original_cmd,
                              int argno, char *cmd_data, int sizeof_cmd_data,
                              char **cmd, int flag)
{
 int was_dashed= 0;
 char *dash_pt;

 if(strlen(original_cmd)>= sizeof_cmd_data) {
   if(argno>=0)
     sprintf(xorriso->info_text, "Oversized argument #%d (length %d)\n",
             argno, (int) strlen(original_cmd));
   else
     sprintf(xorriso->info_text, "Oversized option (length %d)\n",
             (int) strlen(original_cmd));
   return(-1);
 }
 strcpy(cmd_data, original_cmd);
 *cmd= cmd_data;
 if(strcmp(*cmd, xorriso->list_delimiter)==0)
   return(1);
 while((*cmd)[0]=='-') {
   if((*cmd)[1]==0)
 break;
   was_dashed++;
   (*cmd)++;
 }
 for(dash_pt= *cmd; *dash_pt!=0; dash_pt++)
   if(*dash_pt=='-')
     *dash_pt= '_';
 return(was_dashed);
}


/* @param flag bit0= do not warn of unknown option
   @return <=0 error,
           1=count is valid, 2=dashed unknown, 3=undashed unknown
*/
int Xorriso_count_args(struct XorrisO *xorriso, int argc, char **argv,
                       int *count, int flag)
{
 int ret, was_dashed= 0, i;
 char *cmd, cmd_data[2*SfileadrL];
 static char arg0_commands[][40]= {
    "ban_stdio_write","close_filter_list","commit","devices","end",
    "for_backup", "help",
    "list_formats","no_rc","print_size","pvd_info","pwd","pwdi","pwdx",
    "read_mkisofsrc","rollback","rollback_end",
    "tell_media_space","toc","version",
    ""
 };
 static char arg1_commands[][40]= {
    "abort_on","acl","add_plainly","application_id","auto_charset",
    "abstract_file",
    "backslash_codes","blank","biblio_file",
    "calm_drive","cd","cdi","cdx","charset","close",
    "commit_eject","compliance","copyright_file",
    "dev","dialog","disk_dev_ino","disk_pattern","dummy","dvd_obs","eject",
    "iso_rr_pattern","follow","format","fs","gid","grow_blindly","hardlinks",
    "history","indev","in_charset","joliet",
    "list_delimiter","list_profiles","local_charset",
    "mark","md5","mount_opts","not_leaf","not_list","not_mgt",
    "options_from_file","osirrox","outdev","out_charset","overwrite",
    "pacifier","padding","path_list","pathspecs","pkt_output","print","prompt",
    "prog","prog_help","publisher","quoted_not_list","quoted_path_list",
    "reassure","report_about","rom_toc_scan","scsi_log",
    "session_log","speed","split_size","status","status_history_max",
    "stdio_sync","stream_recording","system_id","temp_mem_limit",
    "uid","unregister_filter","use_readline","volid","volset_id",
    "xattr","zisofs",
    ""
 };
 static char arg2_commands[][40]= {
    "assert_volid","boot_image","compare","compare_r","drive_class",
    "errfile_log","error_behavior","extract","extract_single",
    "load","logfile",
    "map","map_single","page","return_with",
    "scdbackup_tag","update","update_r","volume_date",
    ""
 };
 static char arg4_commands[][40]= {
    "cut_out","extract_cut","mount","mount_cmd","paste_in","session_string",
    ""
 };
 static char argn_commands[][40]= {
    "add","alter_date","alter_date_r","as",
    "check_md5","check_md5_r","check_media","check_media_defaults",
    "chgrp","chgrpi","chgrp_r","chgrp_ri","chmod","chmodi",
    "chmod_r","chmod_ri","chown","chowni","chown_r","chown_ri",
    "compare_l","cpr","cpri","cp_rax","cp_rx","cpax","cpx",
    "du","dui","dus","dusi","dux","dusx","external_filter","extract_l",
    "file_size_limit","find","findi","finds","findx",
    "getfacl","getfacli","getfacl_r","getfacl_ri",
    "getfattr","getfattri","getfattr_r","getfattr_ri","hide",
    "ls","lsi","lsl","lsli","lsd","lsdi","lsdl","lsdli",
    "lsx","lslx","lsdx","lsdlx","map_l","mv","mvi","mkdir","mkdiri",
    "not_paths","rm","rmi","rm_r","rm_ri","rmdir","rmdiri","update_l",
    "setfacl","setfacli","setfacl_list","setfacl_listi",
    "setfacl_r","setfacl_ri","setfattr","setfattri",
    "setfattr_list","setfattr_listi","setfattr_r","setfattr_ri",
    "set_filter","set_filter_r","show_stream","show_stream_r",
    ""
 };

 *count= 0;
 if(argc<=0)
   return(-1);
 ret= Xorriso_normalize_command(xorriso, argv[0], -1,
                                cmd_data, sizeof(cmd_data), &cmd, 0);
 if(ret<0)
   return(ret);
 was_dashed= (ret>0);
 if(cmd[0]=='#' || cmd[0]==0 || strcmp(cmd, xorriso->list_delimiter) == 0) {
   /* ignore: comment line , empty option , orphaned list delimiter */
   return(1);
 }
 for(i=0; arg0_commands[i][0]!=0; i++)
   if(strcmp(arg0_commands[i], cmd)==0)
     return(1);
 *count= 1;
 for(i=0; arg1_commands[i][0]!=0; i++)
   if(strcmp(arg1_commands[i], cmd)==0)
     return(1);
 *count= 2;
 for(i=0; arg2_commands[i][0]!=0; i++)
   if(strcmp(arg2_commands[i], cmd)==0)
     return(1);
 *count= 4;
 for(i=0; arg4_commands[i][0]!=0; i++)
   if(strcmp(arg4_commands[i], cmd)==0)
     return(1);
 *count= 0;
 for(i=0; argn_commands[i][0]!=0; i++)
   if(strcmp(argn_commands[i], cmd)==0) {
     ret= Xorriso_end_idx(xorriso, argc, argv, 1, 1);
     if(ret<1)
       return(ret);
     *count= ret-1;
     return(1);
   }

 if(!(flag&1)) {
   sprintf(xorriso->info_text, "Unknown option : '%s'", argv[0]);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
 }

 return(2+!was_dashed);
}


/* @param flag bit0= recursion
               bit1= these are command line arguments
                     (for xorriso->argument_emulation)
*/
int Xorriso_interpreter(struct XorrisO *xorriso,
                        int argc, char **argv, int *idx, int flag)
/*
return:
 <=0 error , 1 = success , 2 = problem event ignored , 3 = end program run
*/
{
 int ret, was_dashed, end_ret, num1, num2;
 char *cmd, *original_cmd, cmd_data[2*SfileadrL], *arg1, *arg2;
 
 if(xorriso==NULL)
   return(0);
 if(xorriso->is_dialog) {
   xorriso->result_line_counter= xorriso->result_page_counter= 0;
   if(xorriso->result_page_length<0)
     xorriso->result_page_length= -xorriso->result_page_length;
 }

next_command:;
 if(flag&2) {
   ret= 1;
   if(xorriso->argument_emulation==1)
     ret= Xorriso_as_genisofs(xorriso, argc, argv, idx, 0);
   else if(xorriso->argument_emulation==2)
     ret= Xorriso_as_cdrskin(xorriso, argc, argv, idx, 0);
   if(xorriso->argument_emulation>0) {
     xorriso->argument_emulation= 0;
     if(ret<=0)
       goto eval_any_problems;
     if((*idx)>=argc)
       {ret= 1; goto ex;}
   }
 }

 xorriso->prepended_wd= 0;
 xorriso->request_to_abort= xorriso->request_not_to_ask= 0;
 Xorriso_set_problem_status(xorriso, "", 0);
 if((*idx)<argc)
   original_cmd= cmd= argv[*idx];
 else
   original_cmd= cmd= "";
 if(xorriso->add_plainly==3 && cmd[0] && !xorriso->is_dialog) {
   (*idx)++;
   goto add_plain_argument;
 }
 was_dashed= 0;

 ret= Xorriso_normalize_command(xorriso, original_cmd, -1,
                                cmd_data, sizeof(cmd_data), &cmd, 0);
 if(ret<0)
   goto eval_any_problems;
 was_dashed= ret;

 (*idx)++;
 if((*idx)<argc)
   arg1= argv[(*idx)];
 else
   arg1= "";
 if((*idx)+1<argc)
   arg2= argv[(*idx)+1];
 else
   arg2= "";

 ret= 1;
 if(cmd[0]=='#' || cmd[0]==0) {
   /* ignore comment line and empty option */; 

 } else if(strcmp(cmd,"abort_on")==0) {
   (*idx)++;
   ret= Xorriso_option_abort_on(xorriso, arg1, 0);

 } else if(strcmp(cmd,"abstract_file")==0) { 
   (*idx)++;
   Xorriso_option_abstract_file(xorriso, arg1, 0);

 } else if(strcmp(cmd,"acl")==0) {
   (*idx)++;
   ret= Xorriso_option_acl(xorriso, arg1, 0);

 } else if(strcmp(cmd,"add")==0) {
   ret= Xorriso_option_add(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"add_plainly")==0) {
   (*idx)++;
   ret= Xorriso_option_add_plainly(xorriso, arg1, 0);

 } else if(strcmp(cmd,"alter_date")==0 || strcmp(cmd,"alter_date_r")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_alter_date(xorriso, arg1, arg2, argc, argv, idx,
                                  strlen(cmd)>10);

 } else if(strcmp(cmd,"application_id")==0) {
   (*idx)++;
   ret= Xorriso_option_application_id(xorriso, arg1, 0);

 } else if(strcmp(cmd,"as")==0) {
   ret= Xorriso_option_as(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"assert_volid")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_assert_volid(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"auto_charset")==0) {
   (*idx)++;
   ret= Xorriso_option_auto_charset(xorriso, arg1, 0);

 } else if(strcmp(cmd,"backslash_codes")==0) {
   (*idx)++;
   ret= Xorriso_option_backslash_codes(xorriso, arg1, 0);

 } else if(strcmp(cmd,"ban_stdio_write")==0) {
   ret= Xorriso_option_ban_stdio_write(xorriso, 0);

 } else if(strcmp(cmd,"biblio_file")==0) { 
   (*idx)++;
   Xorriso_option_biblio_file(xorriso, arg1, 0);

 } else if(strcmp(cmd,"blank")==0) {
   (*idx)++;
   ret= Xorriso_option_blank(xorriso, arg1, 0);

 } else if(strcmp(cmd,"boot_image")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_boot_image(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"calm_drive")==0) {
   (*idx)++;
   ret= Xorriso_option_calm_drive(xorriso, arg1, 0);

 } else if(strcmp(cmd,"cd")==0 || strcmp(cmd,"cdi")==0) {
   (*idx)++;
   ret= Xorriso_option_cdi(xorriso, arg1, 0);

 } else if(strcmp(cmd,"cdx")==0) {
   (*idx)++;
   ret= Xorriso_option_cdx(xorriso, arg1, 0);

 } else if(strcmp(cmd,"charset")==0) {
   (*idx)++;
   ret= Xorriso_option_charset(xorriso, arg1, 3);

 } else if(strcmp(cmd,"check_md5")==0) {
   ret= Xorriso_option_check_md5(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"check_md5_r")==0) {
   ret= Xorriso_option_check_md5(xorriso, argc, argv, idx, 8);

 } else if(strcmp(cmd,"check_media")==0) {
   ret= Xorriso_option_check_media(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"check_media_defaults")==0) {
   ret= Xorriso_option_check_media_defaults(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"chgrp")==0 || strcmp(cmd,"chgrpi")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chgrpi(xorriso, arg1, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"chgrp_r")==0 || strcmp(cmd,"chgrp_ri")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chgrpi(xorriso, arg1, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"chmod")==0 || strcmp(cmd,"chmodi")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chmodi(xorriso, arg1, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"chmod_r")==0 || strcmp(cmd,"chmod_ri")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chmodi(xorriso, arg1, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"chown_r")==0 || strcmp(cmd,"chown_ri")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chowni(xorriso, arg1, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"chown")==0 || strcmp(cmd,"chowni")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_chowni(xorriso, arg1, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"close")==0) {
   (*idx)++;
   ret= Xorriso_option_close(xorriso, arg1, 0);

 } else if(strcmp(cmd,"close_filter_list")==0) {
   ret= Xorriso_option_close_filter_list(xorriso, 0);

 } else if(strcmp(cmd,"commit")==0) {
   ret= Xorriso_option_commit(xorriso, 0);

 } else if(strcmp(cmd,"commit_eject")==0) {
   (*idx)++;
   ret= Xorriso_option_commit_eject(xorriso, arg1, 0);

 } else if(strcmp(cmd,"compare")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_compare(xorriso, arg1, arg2, 1);

 } else if(strcmp(cmd,"compare_l")==0) {
   ret= Xorriso_option_map_l(xorriso, argc, argv, idx, 1<<8);

 } else if(strcmp(cmd,"compare_r")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_compare(xorriso, arg1, arg2, 1|8);

 } else if(strcmp(cmd,"compliance")==0) {
   (*idx)++;
   Xorriso_option_compliance(xorriso, arg1, 0);

 } else if(strcmp(cmd,"copyright_file")==0) { 
   (*idx)++;
   Xorriso_option_copyright_file(xorriso, arg1, 0);

 } else if(strcmp(cmd,"cpr")==0 || strcmp(cmd,"cpri")==0) {
   ret= Xorriso_option_cpri(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"cp_rx")==0 || strcmp(cmd,"cp_rax")==0) {
   ret= Xorriso_option_cpx(xorriso, argc, argv, idx,
                           1|((strcmp(cmd,"cp_rax")==0)<<1));

 } else if(strcmp(cmd,"cpx")==0 || strcmp(cmd,"cpax")==0) {
   ret= Xorriso_option_cpx(xorriso, argc, argv, idx,
                           (strcmp(cmd,"cpax")==0)<<1);

 } else if(strcmp(cmd,"cut_out")==0) {
   (*idx)+= 4;
   if((*idx)>argc) {
     sprintf(xorriso->info_text,
            "-cut_out: Not enough arguments. Needed are: disk_path start count so_rr_path");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0;
   } else
     ret= Xorriso_option_cut_out(xorriso, arg1, arg2,
                                 argv[(*idx)-2], argv[(*idx)-1], 0);

 } else if(strcmp(cmd,"dev")==0) {
   (*idx)++;
   ret= Xorriso_option_dev(xorriso, arg1, 3);

 } else if(strcmp(cmd,"devices")==0) {
   ret= Xorriso_option_devices(xorriso, 0);

 } else if(strcmp(cmd,"dialog")==0) {
   (*idx)++;
   ret= Xorriso_option_dialog(xorriso, arg1, 0);

 } else if(strcmp(cmd,"disk_dev_ino")==0) {
   (*idx)++;
   ret= Xorriso_option_disk_dev_ino(xorriso, arg1, 0);

 } else if(strcmp(cmd,"disk_pattern")==0) {
   (*idx)++;
   ret= Xorriso_option_disk_pattern(xorriso, arg1, 0);

 } else if(strcmp(cmd,"drive_class")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_drive_class(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"du")==0   || strcmp(cmd,"dui")==0 ||
           strcmp(cmd,"dus")==0 || strcmp(cmd,"dusi")==0) {
   ret= Xorriso_option_lsi(xorriso, argc, argv, idx, (cmd[2]!='s')|4);

 } else if(strcmp(cmd,"dummy")==0) {
   (*idx)++;
   ret= Xorriso_option_dummy(xorriso, arg1, 0);

 } else if(strcmp(cmd,"dvd_obs")==0) {
   (*idx)++;
   ret= Xorriso_option_dvd_obs(xorriso, arg1, 0);

 } else if(strcmp(cmd,"dux")==0 || strcmp(cmd,"dusx")==0) {
   ret= Xorriso_option_lsx(xorriso, argc, argv, idx, (cmd[2]!='s')|4);

 } else if(strcmp(cmd,"eject")==0) {
   (*idx)++;
   ret= Xorriso_option_eject(xorriso, arg1, 0);

 } else if(strcmp(cmd,"end")==0) {
   end_ret= Xorriso_option_end(xorriso, 0);
   ret= Xorriso_eval_problem_status(xorriso, ret, 0);
   if(ret<0)
     return(ret);
   if(end_ret!=2)
     {ret= 3; goto ex;}

 } else if(strcmp(cmd,"errfile_log")==0) {
   (*idx)+= 2;
    ret= Xorriso_option_errfile_log(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"error_behavior")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_error_behavior(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"external_filter")==0) {
   ret= Xorriso_option_external_filter(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"extract")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_extract(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"extract_cut")==0) {
   (*idx)+= 4;
   if((*idx)>argc) {
     sprintf(xorriso->info_text,
            "-extract_cut: Not enough arguments. Needed are: disk_path start count so_rr_path");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0;
   } else
     ret= Xorriso_option_extract_cut(xorriso, arg1, arg2,
                                     argv[(*idx)-2], argv[(*idx)-1], 0);

 } else if(strcmp(cmd,"extract_l")==0) {
   ret= Xorriso_option_map_l(xorriso, argc, argv, idx, 3<<8);

 } else if(strcmp(cmd,"extract_single")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_extract(xorriso, arg1, arg2, 32);

 } else if(strcmp(cmd,"file_size_limit")==0) {
   ret= Xorriso_option_file_size_limit(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"find")==0 || strcmp(cmd,"findi")==0) {
   ret= Xorriso_option_find(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"findx")==0) {
   ret= Xorriso_option_find(xorriso, argc, argv, idx, 1);

 } else if(strcmp(cmd,"follow")==0) {
   (*idx)++;
   ret= Xorriso_option_follow(xorriso, arg1, 0);

 } else if(strcmp(cmd,"for_backup")==0) {
   Xorriso_option_hardlinks(xorriso, "on", 0);
   Xorriso_option_acl(xorriso, "on", 0);
   Xorriso_option_xattr(xorriso, "on", 0);
   Xorriso_option_md5(xorriso, "on", 0);
   ret= 1;

 } else if(strcmp(cmd,"format")==0) {
   (*idx)++;
   ret= Xorriso_option_blank(xorriso, arg1, 1);

 } else if(strcmp(cmd,"fs")==0) {
   (*idx)++;
   ret= Xorriso_option_fs(xorriso, arg1, 0);

 } else if(strcmp(cmd,"getfacl")==0 || strcmp(cmd,"getfacli")==0) {
   ret= Xorriso_option_getfacli(xorriso, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"getfacl_r")==0 || strcmp(cmd,"getfacl_ri")==0) {
   ret= Xorriso_option_getfacli(xorriso, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"getfattr")==0 || strcmp(cmd,"getfattri")==0) {
   ret= Xorriso_option_getfacli(xorriso, argc, argv, idx, 2);   

 } else if(strcmp(cmd,"getfattr_r")==0 || strcmp(cmd,"getfattr_ri")==0) {
   ret= Xorriso_option_getfacli(xorriso, argc, argv, idx, 1 | 2);   

 } else if(strcmp(cmd,"gid")==0) {
   (*idx)++;
   ret= Xorriso_option_gid(xorriso,arg1,0);

 } else if(strcmp(cmd,"grow_blindly")==0) {
   (*idx)++;
   ret= Xorriso_option_grow_blindly(xorriso,arg1,0);

 } else if(strcmp(cmd,"hardlinks")==0) {
   (*idx)++;
   ret= Xorriso_option_hardlinks(xorriso, arg1, 0);

 } else if(strcmp(cmd,"help")==0) {
   Xorriso_option_help(xorriso,0);

 } else if(strcmp(cmd,"hide")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_hide(xorriso, arg1, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"history")==0) {
   /* add to readline history */
   (*idx)++;
   ret= Xorriso_option_history(xorriso, arg1, 0);

 } else if(strcmp(cmd,"indev")==0) {
   (*idx)++;
   ret= Xorriso_option_dev(xorriso, arg1, 1);

 } else if(strcmp(cmd,"in_charset")==0) {
   (*idx)++;
   ret= Xorriso_option_charset(xorriso, arg1, 1);

 } else if(strcmp(cmd,"iso_rr_pattern")==0) {
   (*idx)++;
   ret= Xorriso_option_iso_rr_pattern(xorriso, arg1, 0);

 } else if(strcmp(cmd,"joliet")==0) {
   (*idx)++;
   ret= Xorriso_option_joliet(xorriso, arg1, 0);

 } else if(strcmp(cmd, "list_delimiter") == 0) {
   (*idx)++;
   ret= Xorriso_option_list_delimiter(xorriso, arg1, 0);

 } else if(strcmp(cmd,"list_formats")==0) {
   ret= Xorriso_option_list_formats(xorriso, 0);

 } else if(strcmp(cmd,"list_profiles")==0) {
   (*idx)++;
   ret= Xorriso_option_list_profiles(xorriso, arg1, 0);

 } else if(strcmp(cmd,"load")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_load(xorriso, arg1, arg2, 0);
   
 } else if(strcmp(cmd,"local_charset")==0) {
   (*idx)++;
   ret= Xorriso_option_charset(xorriso, arg1, 4);

 } else if(strcmp(cmd,"logfile")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_logfile(xorriso, arg1, arg2, 0);
   
 } else if(strcmp(cmd,"ls")==0 || strcmp(cmd,"lsi")==0 ||
           strcmp(cmd,"lsl")==0 || strcmp(cmd,"lsli")==0) {
   ret= Xorriso_option_lsi(xorriso, argc, argv, idx, (cmd[2]=='l'));

 } else if(strcmp(cmd,"lsd")==0 || strcmp(cmd,"lsdi")==0 ||
           strcmp(cmd,"lsdl")==0 || strcmp(cmd,"lsdli")==0) {
   ret= Xorriso_option_lsi(xorriso, argc, argv, idx, (cmd[3]=='l')|8);

 } else if(strcmp(cmd,"lsdx")==0 || strcmp(cmd,"lsdlx")==0) {
   ret= Xorriso_option_lsx(xorriso, argc, argv, idx, (cmd[3]=='l')|8);

 } else if(strcmp(cmd,"lsx")==0 || strcmp(cmd,"lslx")==0) {
   ret= Xorriso_option_lsx(xorriso, argc, argv, idx, (cmd[2]=='l'));

 } else if(strcmp(cmd,"map")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_map(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"map_l")==0) {
   ret= Xorriso_option_map_l(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"map_single")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_map(xorriso, arg1, arg2, 32);

 } else if(strcmp(cmd,"mark")==0) {
   (*idx)++;
   ret= Xorriso_option_mark(xorriso, arg1, 0);

 } else if(strcmp(cmd, "md5")==0) {
   (*idx)++;
   ret= Xorriso_option_md5(xorriso, arg1, 0);

 } else if(strcmp(cmd, "mount") == 0 || strcmp(cmd, "mount_cmd") == 0) {
   (*idx)+= 4;
   if((*idx)>argc) {
     sprintf(xorriso->info_text,
         "-%s: Not enough arguments. Needed are: device entity id command",
         cmd);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0;
   } else
     ret= Xorriso_option_mount(xorriso, arg1, arg2,
                               argv[(*idx)-2], argv[(*idx)-1],
                               (strcmp(cmd, "mount_cmd") == 0));

 } else if(strcmp(cmd, "mount_opts")==0) {
   (*idx)++;
   ret= Xorriso_option_mount_opts(xorriso, arg1, 0);

 } else if(strcmp(cmd,"mv")==0 || strcmp(cmd,"mvi")==0) {
   ret= Xorriso_option_mvi(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"mkdir")==0 || strcmp(cmd,"mkdiri")==0) {
   ret= Xorriso_option_mkdiri(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"no_rc")==0) {
   ret= Xorriso_option_no_rc(xorriso, 0);

 } else if(strcmp(cmd,"not_leaf")==0) {
   (*idx)++;
   ret= Xorriso_option_not_leaf(xorriso, arg1, 0);

 } else if(strcmp(cmd,"not_list")==0) {
   (*idx)++;
   ret= Xorriso_option_not_list(xorriso, arg1, 0);

 } else if(strcmp(cmd,"not_mgt")==0) {
   (*idx)++;
   ret= Xorriso_option_not_mgt(xorriso, arg1, 0);

 } else if(strcmp(cmd,"not_paths")==0) {
   ret= Xorriso_option_not_paths(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"options_from_file")==0) {
   (*idx)++;
   ret= Xorriso_option_options_from_file(xorriso,arg1,0);
   if(ret==3)
     goto ex;

 } else if(strcmp(cmd,"osirrox")==0) {
   (*idx)++;
   ret= Xorriso_option_osirrox(xorriso,arg1,0);

 } else if(strcmp(cmd,"outdev")==0) {
   (*idx)++;
   ret= Xorriso_option_dev(xorriso, arg1, 2);

 } else if(strcmp(cmd,"out_charset")==0) {
   (*idx)++;
   ret= Xorriso_option_charset(xorriso, arg1, 2);

 } else if(strcmp(cmd,"overwrite")==0) {
   (*idx)++;
   ret= Xorriso_option_overwrite(xorriso,arg1,0);

 } else if(strcmp(cmd,"pacifier")==0) {
   (*idx)++;
   ret= Xorriso_option_pacifier(xorriso, arg1, 0);

 } else if(strcmp(cmd,"padding")==0) {
   (*idx)++;
   ret= Xorriso_option_padding(xorriso, arg1, 0);

 } else if(strcmp(cmd,"page")==0) {
   (*idx)+= 2;
   num1= num2= 0;
   sscanf(arg1,"%d",&num1);
   sscanf(arg2,"%d",&num2);
   if(num1<0)
     num1= 0;
   if(arg1[0]==0)
     num1= 16;
   if(num2<=0)
     num2= 80;
   ret= Xorriso_option_page(xorriso, num1, num2, 0);

 } else if(strcmp(cmd,"paste_in")==0) {
   (*idx)+= 4;
   if((*idx)>argc) {
     sprintf(xorriso->info_text,
            "-paste_in: Not enough arguments. Needed are: disk_path start count so_rr_path");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0;
   } else
     ret= Xorriso_option_paste_in(xorriso, arg1, arg2,
                                 argv[(*idx)-2], argv[(*idx)-1], 0);

 } else if(strcmp(cmd,"path-list")==0 || strcmp(cmd,"path_list")==0) {
   (*idx)++;
   ret= Xorriso_option_path_list(xorriso, arg1, 0);

 } else if(strcmp(cmd,"pathspecs")==0) {
   (*idx)++;
   ret= Xorriso_option_pathspecs(xorriso, arg1, 0);

 } else if(strcmp(cmd,"pkt_output")==0) {
   (*idx)++;
   ret=  Xorriso_option_pkt_output(xorriso, arg1, 0);

 } else if(strcmp(cmd,"print")==0) {
   (*idx)++;
   ret= Xorriso_option_print(xorriso, arg1, 0);

 } else if(strcmp(cmd,"print_size")==0) {
   Xorriso_option_print_size(xorriso, 0);

 } else if(strcmp(cmd,"prompt")==0) {
   (*idx)++;
   ret= Xorriso_option_prompt(xorriso, arg1, 0);

 } else if(strcmp(cmd,"prog")==0) {
   (*idx)++;
   ret= Xorriso_option_prog(xorriso, arg1, 0);

 } else if(strcmp(cmd,"publisher")==0) { 
   (*idx)++;
   Xorriso_option_publisher(xorriso, arg1, 0);

 } else if(strcmp(cmd,"pvd_info")==0) { 
   Xorriso_option_pvd_info(xorriso, 0);

 } else if(strcmp(cmd,"pwd")==0 || strcmp(cmd,"pwdi")==0) {
   Xorriso_option_pwdi(xorriso, 0);

 } else if(strcmp(cmd,"pwdx")==0) { 
   Xorriso_option_pwdx(xorriso, 0);

 } else if(strcmp(cmd,"quoted_not_list")==0) {
   (*idx)++;
   ret= Xorriso_option_not_list(xorriso, arg1, 1);

 } else if(strcmp(cmd,"quoted_path_list")==0) {
   (*idx)++;
   ret= Xorriso_option_path_list(xorriso, arg1, 1);

 } else if(strcmp(cmd,"read_mkisofsrc")==0) {
   ret= Xorriso_option_read_mkisofsrc(xorriso, 0);

 } else if(strcmp(cmd,"reassure")==0) {
   (*idx)++;
   ret= Xorriso_option_reassure(xorriso, arg1, 0);

 } else if(strcmp(cmd,"report_about")==0) {
   (*idx)++;
   ret= Xorriso_option_report_about(xorriso, arg1, 0);

 } else if(strcmp(cmd,"return_with")==0) {
   (*idx)+= 2;
   num2= 0;
   sscanf(arg2,"%d",&num2);
   ret= Xorriso_option_return_with(xorriso, arg1, num2, 0);

 } else if(strcmp(cmd,"rm")==0 || strcmp(cmd,"rmi")==0) {
   ret= Xorriso_option_rmi(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"rm_r")==0 || strcmp(cmd,"rm_ri")==0) {
   ret= Xorriso_option_rmi(xorriso, argc, argv, idx, 1);

 } else if(strcmp(cmd,"rmdir")==0 || strcmp(cmd,"rmdiri")==0) {
   ret= Xorriso_option_rmi(xorriso, argc, argv, idx, 2);

 } else if(strcmp(cmd,"rollback")==0) {
   ret= Xorriso_option_rollback(xorriso, 0);

 } else if(strcmp(cmd,"rollback_end")==0) {
   end_ret= Xorriso_option_end(xorriso, 1);
   ret= Xorriso_eval_problem_status(xorriso, ret, 0);
   if(ret<0)
     return(ret);
   if(end_ret!=2)
     {ret= 3; goto ex;}

 } else if(strcmp(cmd,"rom_toc_scan")==0) {
   (*idx)++;
   Xorriso_option_rom_toc_scan(xorriso, arg1, 0);

 } else if(strcmp(cmd,"scdbackup_tag")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_scdbackup_tag(xorriso, arg1, arg2, 0);
 
 } else if(strcmp(cmd, "scsi_log") == 0) {
   (*idx)++;
   ret= Xorriso_option_scsi_log(xorriso, arg1, 0);

 } else if(strcmp(cmd,"session_log")==0) {
   (*idx)++;
   ret= Xorriso_option_session_log(xorriso, arg1, 0);
 
 } else if(strcmp(cmd, "session_string") == 0) {
   (*idx)+= 4;
   if((*idx)>argc) {
     sprintf(xorriso->info_text,
         "-%s: Not enough arguments. Needed are: device entity id command",
         cmd);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
     ret= 0;
   } else
     ret= Xorriso_option_mount(xorriso, arg1, arg2,
                               argv[(*idx)-2], argv[(*idx)-1], 2);

 } else if(strcmp(cmd,"setfacl")==0 || strcmp(cmd,"setfacli")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_setfacli(xorriso, arg1, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"setfacl_list")==0 || strcmp(cmd,"setfacl_listi")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_setfacl_listi(xorriso, arg1, 0);   

 } else if(strcmp(cmd,"setfacl_r")==0 || strcmp(cmd,"setfacl_ri")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_setfacli(xorriso, arg1, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"setfattr")==0 || strcmp(cmd,"setfattri")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_setfattri(xorriso, arg1, arg2, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"setfattr_list")==0 || strcmp(cmd,"setfattr_listi")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_setfattr_listi(xorriso, arg1, 0);   

 } else if(strcmp(cmd,"setfattr_r")==0 || strcmp(cmd,"setfattr_ri")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_setfattri(xorriso, arg1, arg2, argc, argv, idx, 1);   

 } else if(strcmp(cmd,"set_filter")==0 || strcmp(cmd,"set_filter_r")==0) {
   (*idx)+= 1;
   ret= Xorriso_option_set_filter(xorriso, arg1, argc, argv, idx,
                                  strcmp(cmd,"set_filter_r")==0);

 } else if(strcmp(cmd,"show_stream")==0 || strcmp(cmd,"show_stream_r")==0) {
   ret= Xorriso_option_set_filter(xorriso, "", argc, argv, idx,
                                  (strcmp(cmd,"show_stream_r")==0) | 2 | 4);

 } else if(strcmp(cmd,"speed")==0) {
   (*idx)++;
   ret= Xorriso_option_speed(xorriso, arg1, 0);

 } else if(strcmp(cmd,"split_size")==0) {
   (*idx)++;
   ret= Xorriso_option_split_size(xorriso, arg1, 0);

 } else if(strcmp(cmd,"status")==0) {
   (*idx)++;
   ret= Xorriso_option_status(xorriso, arg1, 0);

 } else if(strcmp(cmd,"status_history_max")==0) {
   (*idx)++;
   sscanf(arg1,"%d",&num1);
   ret= Xorriso_option_status_history_max(xorriso, num1, 0);

 } else if(strcmp(cmd,"stdio_sync")==0) {
   (*idx)++;
   ret= Xorriso_option_stdio_sync(xorriso, arg1, 0);

 } else if(strcmp(cmd,"stream_recording")==0) {
   (*idx)++;
   ret= Xorriso_option_stream_recording(xorriso, arg1, 0);

 } else if(strcmp(cmd,"system_id")==0) {
   (*idx)++;
   ret= Xorriso_option_system_id(xorriso, arg1, 0);

 } else if(strcmp(cmd,"tell_media_space")==0) {
   Xorriso_option_tell_media_space(xorriso, 0);

 } else if(strcmp(cmd,"temp_mem_limit")==0) {
   (*idx)++;
   ret= Xorriso_option_temp_mem_limit(xorriso, arg1, 0);

 } else if(strcmp(cmd,"test")==0) { /* This option does not exist. */

   /* install temporary test code here */;

 } else if(strcmp(cmd,"toc")==0) {
   Xorriso_option_toc(xorriso, 0);

 } else if(strcmp(cmd,"uid")==0) {
   (*idx)++;
   ret= Xorriso_option_uid(xorriso,arg1,0);

 } else if(strcmp(cmd,"unregister_filter")==0) {
   (*idx)++;
   ret= Xorriso_option_unregister_filter(xorriso, arg1, 0);

 } else if(strcmp(cmd,"update")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_update(xorriso, arg1, arg2, 1);

 } else if(strcmp(cmd,"update_l")==0) {
   ret= Xorriso_option_map_l(xorriso, argc, argv, idx, 2<<8);

 } else if(strcmp(cmd,"update_r")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_update(xorriso, arg1, arg2, 1|8);

 } else if(strcmp(cmd,"use_readline")==0) {
   (*idx)++;
   ret= Xorriso_option_use_readline(xorriso, arg1, 0);

 } else if(strcmp(cmd,"version")==0){
   ret= Xorriso_option_version(xorriso, 0);

 } else if(strcmp(cmd,"volset_id")==0) {
   (*idx)++;
   ret= Xorriso_option_volset_id(xorriso, arg1, 0);

 } else if(strcmp(cmd,"volid")==0) {
   (*idx)++;
   ret= Xorriso_option_volid(xorriso,arg1,0);

 } else if(strcmp(cmd,"volume_date")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_volume_date(xorriso, arg1, arg2, 0);

 } else if(strcmp(cmd,"xattr")==0) {
   (*idx)++;
   ret= Xorriso_option_xattr(xorriso, arg1, 0);

 } else if(strcmp(cmd,"zisofs")==0) {
   (*idx)++;
   ret= Xorriso_option_zisofs(xorriso, arg1, 0);

 } else if(strcmp(cmd, xorriso->list_delimiter)==0){
   /* tis ok */;

 } else if(was_dashed) {
   if(xorriso->add_plainly>1)
     goto add_plain_argument;
unknown_option:;
   sprintf(xorriso->info_text, "Not a known option:  '%s'\n",
           original_cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   {ret= 0; goto eval_any_problems;}

 } else {
   if(xorriso->add_plainly<=0)
     goto unknown_option;
add_plain_argument:;
   (*idx)--;
   ret= Xorriso_option_add(xorriso, (*idx)+1, argv, idx, 0);
   (*idx)++;

 }

eval_any_problems:
 ret= Xorriso_eval_problem_status(xorriso, ret, 0);
 if(ret<0)
   return(ret);

 if(*idx<argc)
   goto next_command;

ex:;
 if((!xorriso->is_dialog) && !(flag&1))
   Xorriso_mark(xorriso,0);
 fflush(stdout);
 return(ret);
}


int Xorriso_execute_option(struct XorrisO *xorriso, char *line, int flag)
/*
 bit0-bit15 are forwarded to Xorriso_interpreter
 
 bit16= no pageing of info lines
 bit17= print === bar even if xorriso->found<0
*/
{
 int ret,argc= 0, idx= 1;
 char **argv= NULL;
 double tdiff;
 struct timeval tv;
 struct timezone tz;

 gettimeofday(&tv,&tz);
 Xorriso_reset_counters(xorriso,0);
 xorriso->idle_time= 0.0;
 tdiff= tv.tv_sec+(1.e-6*(double) tv.tv_usec);

 /* parse line into args */
 ret= Sfile_make_argv(xorriso->progname, line, &argc, &argv,
                      4 | ((xorriso->bsl_interpretation & 3) << 5));
 if(ret < 0) {
   Xorriso_msgs_submit(xorriso, 0,
      "Severe lack of resources during command line parsing", 0, "FATAL", 0);
   goto ex;
 }
 if(ret == 0) {
   sprintf(xorriso->info_text, "Incomplete quotation in command line: %s",
           line);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   goto ex;
 }
 if(argc<2)
   {ret= 1; goto ex;}
 if(argv[1][0]=='#')
   {ret= 1; goto ex;}

 ret= Xorriso_interpreter(xorriso, argc, argv, &idx, flag&0xffff);
 if(ret<0)
   goto ex;
 gettimeofday(&tv,&tz);
 tdiff= tv.tv_sec+(1.e-6*(double) tv.tv_usec)-tdiff-xorriso->idle_time;
 if(tdiff<0.001)
   tdiff= 0.001;
 if(xorriso->error_count>0) {
   sprintf(xorriso->info_text,
           "----------------------------- %7.f errors encountered\n",
           xorriso->error_count);
   Xorriso_info(xorriso,!(flag&(1<<16)));
 }

 /* ??? >>> print elapsed time  tdiff ? */;

 if((flag&(1<<17)) && !xorriso->bar_is_fresh) {
   sprintf(xorriso->info_text,"============================\n");
   Xorriso_info(xorriso,0);
   xorriso->bar_is_fresh= 1;
 }
 Xorriso_reset_counters(xorriso,0);
ex:;
 Sfile_make_argv("", "", &argc, &argv, 2); /* release memory */
 return(ret);
}


int Xorriso_dialog(struct XorrisO *xorriso, int flag)
{
 int ret,first_round;
 char line[2*SfileadrL];

 if(!xorriso->dialog)
   return(1);
 xorriso->is_dialog= 1;
 for(first_round= 1;1;first_round= 0) {
   if(xorriso->pending_option[0]!=0) {
     Xorriso_mark(xorriso,0);
     strcpy(line,xorriso->pending_option);
     xorriso->pending_option[0]= 0;
   } else {
     if(!xorriso->bar_is_fresh) {
       sprintf(xorriso->info_text,"============================\n");
       Xorriso_info(xorriso,0);
       xorriso->bar_is_fresh= 1;
     }
     sprintf(xorriso->info_text,"enter option and arguments :\n");
     Xorriso_info(xorriso,0);
     Xorriso_mark(xorriso,0);
     ret= Xorriso_dialog_input(xorriso,line,sizeof(line),4);
     if(ret<=0)
 break;
   }
   sprintf(xorriso->info_text,
           "==============================================================\n");
   Xorriso_info(xorriso,0);

   ret= Xorriso_execute_option(xorriso,line,1<<17);
   if(ret<0)
     goto ex;
   if(ret==3)
     goto ex;
   xorriso->did_something_useful= 1;
   xorriso->no_volset_present= 0; /* Re-enable "No ISO image present." */
 }
 ret= 1;
ex:;
 xorriso->is_dialog= 0;
 return(ret);
}


int Xorriso_prescan_args(struct XorrisO *xorriso, int argc, char **argv,
                         int flag)
/*
 bit0= do not interpret argv[1]
*/
/*
 return:
  <0  error
   0  end program
   1  ok, go on
*/
{
 int i, ret, was_dashed, num2, arg_count;
 int was_report_about= 0, was_abort_on= 0, was_return_with= 0;
 char *cmd, *original_cmd, cmd_data[5*SfileadrL], *arg1, *arg2;
 char mem_list_delimiter[81];

 strcpy(mem_list_delimiter, xorriso->list_delimiter);
 for(i=1+(flag&1);i<argc;i++) {
   original_cmd= cmd= argv[i];
   was_dashed= 0;

   was_dashed= Xorriso_normalize_command(xorriso, original_cmd, i,
                                         cmd_data, sizeof(cmd_data), &cmd, 0);
   if(was_dashed<0)
     {ret= -1; goto ex;}

   arg1= "";
   if(i+1<argc)
     arg1= argv[i+1];
   arg2= "";
   if(i+2<argc)
     arg2= argv[2+1];
   if(i>1)
     xorriso->did_something_useful= 1;
   if(i==1 && argc==2) {
     if(strcmp(cmd,"prog_help")==0) {
       i++;
       Xorriso_option_prog_help(xorriso,arg1,0);
       xorriso->did_something_useful= 1;
       {ret= 0; goto ex;}
     } else if(strcmp(cmd,"help")==0) {
       if(xorriso->argument_emulation == 1) {
         Xorriso_genisofs_help(xorriso, 0);
       } else if(xorriso->argument_emulation == 2) {
         Xorriso_cdrskin_help(xorriso, 0);
       } else {
         Xorriso_option_help(xorriso,0);
       }
       xorriso->did_something_useful= 1;
       {ret= 0; goto ex;}
     }
   } else if(i==1 && strcmp(cmd,"no_rc")==0) {
     ret= Xorriso_option_no_rc(xorriso, 0);
     if(ret<=0)
       goto ex;

   } else if((strcmp(cmd,"dev")==0 || strcmp(cmd,"outdev")==0 ||
                                      strcmp(cmd,"indev")==0) &&
             (strcmp(arg1,"stdio:/dev/fd/1")==0 || strcmp(arg1,"-")==0) &&
             xorriso->dev_fd_1<0) {
     /* Detach fd 1 from externally perceived stdout and attach it to stderr.
        Keep dev_fd_1 connected to external stdout. dev_fd_1 is to be used when
        "stdio:/dev/fd/1" is interpreted as drive address.
     */
protect_stdout:;
     Xorriso_protect_stdout(xorriso, 0);
     sprintf(xorriso->info_text,
             "Encountered  -  or  stdio:/dev/fd/1  as possible write target.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
     sprintf(xorriso->info_text,
             "Redirecting nearly all text message output to stderr.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
     sprintf(xorriso->info_text, "Disabling use of libreadline.");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);

   } else if(strcmp(cmd,"abort_on")==0 && was_dashed == 1) {
     i++;
     if(!was_abort_on)
       Xorriso_option_abort_on(xorriso, arg1, 0);
     was_abort_on= 1;

   } else if(strcmp(cmd,"report_about")==0 && was_dashed == 1) {
     i++;
     if(!was_report_about)
       Xorriso_option_report_about(xorriso, arg1, 0);
     was_report_about= 1;

   } else if(strcmp(cmd,"return_with")==0 && was_dashed == 1) {
     i+= 2;
     num2= 0;
     sscanf(arg2,"%d",&num2);
     if(!was_return_with)
       Xorriso_option_return_with(xorriso, arg1, num2, 0);
     was_return_with= 1;

   } else if(strcmp(cmd,"as")==0 && was_dashed == 1) {
     if(strcmp(arg1, "mkisofs")==0 || strcmp(arg1, "genisoimage")==0 ||
        strcmp(arg1, "genisofs")==0 || strcmp(arg1, "xorrisofs")==0)
       goto protect_stdout;

   } else if(strcmp(cmd, "list_delimiter") == 0) {
     /* Needed for interpreting other args. Gets reset after prescan. */
     i++;
     ret= Xorriso_option_list_delimiter(xorriso, arg1, 0);
     if(ret <= 0)
       goto ex;

   } else if(strcmp(cmd, "scsi_log") == 0 && was_dashed == 1) {
     i++;
     Xorriso_option_scsi_log(xorriso, arg1, 0);

   } else {
     ret= Xorriso_count_args(xorriso, argc-i, argv+i, &arg_count, 1);
     if(ret==1)
       i+= arg_count;
   }
 }
 ret= 1;
ex:;
 strcpy(xorriso->list_delimiter, mem_list_delimiter);
 return(ret);
}


int Xorriso_read_as_mkisofsrc(struct XorrisO *xorriso, char *path, int flag)
{
 int ret, linecount= 0;
 FILE *fp= NULL;
 char *sret, line[SfileadrL], *cpt, *wpt;

 ret= Xorriso_afile_fopen(xorriso, path, "rb", &fp, 1 | 2);
 if(ret <= 0)
   {ret= 0; goto ex;}
 while(1) {
   sret= Sfile_fgets_n(line, SfileadrL - 1, fp, 0);
   if(sret == NULL) {
     if(ferror(fp))
       {ret= 0; goto ex;}
 break;
   }
   linecount++;
   
   /* Interpret line */
   if(line[0] == 0 || line[0] == '#')
 continue;
   cpt= strchr(line, '=');
   if(cpt == NULL) {

     /* >>> ??? complain ? abort reading ? */;

 continue;
   }
   *cpt= 0;
   /* Names are not case sensitive */
   for(wpt= line; wpt < cpt; wpt++)
     if(*wpt >= 'a' && *wpt <= 'z')
       *wpt= toupper(*wpt);
   /* Remove trailing whitespace from name */
   for(wpt= cpt - 1; wpt >= line ; wpt--)
     if(*wpt == ' ' || *wpt == '\t')
       *wpt= 0;
     else
   break;
   /* Remove trailing whitespace from value */
   for(wpt= cpt + 1 + strlen(cpt + 1) - 1; wpt >= cpt; wpt--)
      if(*wpt == ' ' || *wpt == '\t')
       *wpt= 0;
     else
   break;
   /* Remove leading whitespace from value */
   for(cpt++; *cpt == ' ' || *cpt == '\t'; cpt++);
   
   if(strcmp(line, "APPI") == 0) {
     ret= Xorriso_option_application_id(xorriso, cpt, 0);
   } else if(strcmp(line, "COPY") == 0) {
     ret= Xorriso_option_copyright_file(xorriso, cpt, 0);
   } else if(strcmp(line, "ABST") == 0) {
     ret= Xorriso_option_abstract_file(xorriso, cpt, 0);
   } else if(strcmp(line, "BIBL") == 0) {
     ret= Xorriso_option_biblio_file(xorriso, cpt, 0);
   } else if(strcmp(line, "PREP") == 0) {
     /* Not planned to be implemented. Preparer is xorriso. */
     ret= 1;
   } else if(strcmp(line, "PUBL") == 0) {
     ret= Xorriso_option_publisher(xorriso, cpt, 0);
   } else if(strcmp(line, "SYSI") == 0) {
     ret= Xorriso_option_system_id(xorriso, cpt, 0);
   } else if(strcmp(line, "VOLI") == 0) {
     ret= Xorriso_option_volid(xorriso, cpt, 1);
   } else if(strcmp(line, "VOLS") == 0) {
     ret= Xorriso_option_volset_id(xorriso, cpt, 0);
   } else if(strcmp(line, "HFS_TYPE") == 0) {
     /* Not planned to be implemented */
     ret= 1;
   } else if(strcmp(line, "HFS_CREATOR") == 0) {
     /* Not planned to be implemented */
     ret= 1;
   } else {

     /* >>> ??? complain ? abort reading ? */;

   }
 }
 xorriso->mkisofsrc_done= 1;
 ret= 1;
ex:
 if(fp != NULL)
   fclose(fp);
 return(ret);
}


/* ./.mkisofsrc , getenv("MKISOFSRC") ,
   $HOME/.mkisofsrc , $(basename $0)/.mkisofsrc
 */
int Xorriso_read_mkisofsrc(struct XorrisO *xorriso, int flag)
{
 char path[SfileadrL], *cpt;
 int ret;

 ret= Xorriso_read_as_mkisofsrc(xorriso, "./.mkisofsrc", 0);
 if(ret > 0)
   return(ret);
 cpt= getenv("MKISOFSRC");
 if(cpt != NULL) {
   strncpy(path, cpt, SfileadrL - 1);
   path[SfileadrL - 1]= 0;
   ret= Xorriso_read_as_mkisofsrc(xorriso, path, 0);
   if(ret > 0)
     return(ret);
 }
 cpt= getenv("HOME");
 if(cpt != NULL) {
   strncpy(path, cpt, SfileadrL - 1 - 11);
   path[SfileadrL - 1 - 11]= 0;
   strcat(path, "/.mkisofsrc");
   ret= Xorriso_read_as_mkisofsrc(xorriso, path, 0);
   if(ret > 0)
     return(ret);
 }
 strcpy(path, xorriso->progname);
 cpt= strrchr(path, '/');
 if(cpt != NULL) {
   strcpy(cpt + 1, ".mkisofsrc");
   ret= Xorriso_read_as_mkisofsrc(xorriso, path, 0);
   if(ret > 0)
     return(ret);
 }
 /* no .mkisofsrc file found */
 return(2); 
}


int Xorriso_read_rc(struct XorrisO *xorriso, int flag)
{
 int ret,i,was_failure= 0,fret;

 if(xorriso->no_rc)
   return(1);
 i= xorriso->rc_filename_count-1;
 Sfile_home_adr_s(".xorrisorc", xorriso->rc_filenames[i],
                  sizeof(xorriso->rc_filenames[i]),0);
 for(i=0;i<xorriso->rc_filename_count;i++) {
   ret= Sfile_type(xorriso->rc_filenames[i],1|8);
   if(ret!=1)
 continue;
   ret= Xorriso_option_options_from_file(xorriso,xorriso->rc_filenames[i],0);
   if(ret>1)
     return(ret);
   if(ret==1)
 continue; /* regular bottom of loop */
   was_failure= 1;
   fret= Xorriso_eval_problem_status(xorriso, ret, 1);
   if(fret>=0)
 continue;
   return(ret);
 }
 if(xorriso->argument_emulation == 1 && !xorriso->mkisofsrc_done) {
   ret= Xorriso_read_mkisofsrc(xorriso, 0);
   if(ret <= 0)
     was_failure= 1;
 }
 return(!was_failure);
}


int Xorriso_make_return_value(struct XorrisO *xorriso, int flag)
{
 int exit_value= 0;

 if(xorriso->eternal_problem_status >= xorriso->return_with_severity)
   exit_value= xorriso->return_with_value;
 if(exit_value) {
   sprintf(xorriso->info_text,
          "-return_with %s %d triggered by problem severity %s",
          xorriso->return_with_text, exit_value,
          xorriso->eternal_problem_status_text);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
 }
 return(exit_value);
}


int Xorriso_program_arg_bsl(struct XorrisO *xorriso, int argc, char ***argv,
                            int flag)
{
 int ret;

 if(!(xorriso->bsl_interpretation & 16))
   return(1);
 ret= Sfile_argv_bsl(argc, argv, 0);
 return(ret);
}


/* @param flag bit0= prepend wd only if name does not begin by '/'
               bit1= normalize image path
               bit2= prepend wd (automatically done if wd[0]!=0)
               bit3= (with bit1) this is an address in the disk world
*/
int Xorriso_make_abs_adr(struct XorrisO *xorriso, char *wd, char *name,
                             char adr[], int flag)
{
 char norm_adr[SfileadrL];
 int ret;

 if((wd[0]!=0 || (flag&4)) && !((flag&1) && name[0]=='/')) {
   if(strlen(wd)+1>=SfileadrL)
     goto much_too_long;
   strcpy(adr, wd);
   if(name[0])
     if(Sfile_add_to_path(adr, name, 0)<=0) {
much_too_long:;
       Xorriso_much_too_long(xorriso, (int) (strlen(adr)+strlen(name)+1), 2);
       return(0);
     }
 } else {
   if(strlen(name)+1>=SfileadrL)
     goto much_too_long;
   strcpy(adr, name);
 }
 if(flag&2) {
   ret= Xorriso_normalize_img_path(xorriso, "", adr, norm_adr,
                                   1|2|((flag&8)>>1));
   if(ret<=0)
     return(ret);
   if(norm_adr[0]==0)
     strcpy(norm_adr, "/");
   strcpy(adr, norm_adr);
 }
 return(1);
}


/* @param flag bit0= do not complain in case of error, but set info_text */
int Xorriso_convert_datestring(struct XorrisO *xorriso, char *cmd,
                               char *time_type, char *timestring,
                               int *t_type, time_t *t, int flag)
{
 int ret;

 if(strcmp(time_type, "a")==0)
   (*t_type)|= 1;
 else if(strcmp(time_type, "m")==0)
   (*t_type)|= 4;
 else if(strcmp(time_type, "b")==0)
   (*t_type)|= 5;
 else {
   sprintf(xorriso->info_text, "%s: Unrecognized type '%s'", cmd, time_type);
   if(!(flag & 1))
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 ret= Decode_timestring(timestring, t, 0);
 if(ret<=0) {
   sprintf(xorriso->info_text, "%s: Cannot decode timestring '%s'", cmd,
           timestring);
   if(!(flag & 1))
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 sprintf(xorriso->info_text, "Understanding timestring '%s' as:  %s",
         timestring, ctime(t));
 Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 return(1);
}


/* @param flag bit1= do not report memory usage as DEBUG
*/ 
int Xorriso_check_temp_mem_limit(struct XorrisO *xorriso, off_t mem, int flag)
{
 char mem_text[80], limit_text[80];
 
 Sfile_scale((double) mem, mem_text,5,1e4,0);
 if(!(flag&2)) {
   sprintf(xorriso->info_text,
           "Temporary memory needed for result sorting : %s", mem_text);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 }
 if(mem > xorriso->temp_mem_limit) {
   Sfile_scale((double) xorriso->temp_mem_limit,limit_text,5,1e4,1);
   sprintf(xorriso->info_text,
       "Cannot sort. List of matching files exceeds -temp_mem_limit (%s > %s)",
           mem_text, limit_text);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(0);
 }
 return(1);
}


/*
  @param flag bit0= use env_path to find the desired program
return:
 <=0 : error
 1   : done
*/
int Xorriso_execv(struct XorrisO *xorriso, char *cmd, char *env_path,
                  int *status, int flag)
{
 int ret, argc= 0;
 char **argv= NULL, *pathlist= NULL, *cpt, *npt, prog[SfileadrL];
 char sfe[5*SfileadrL];
 pid_t child_pid;
 struct stat stbuf;

 wait3(NULL,WNOHANG,NULL); /* just to remove any old dead child */

 ret= Sfile_make_argv("", cmd, &argc, &argv, 1|4|128);
 if(ret <= 0)
   goto ex;
 if(argc < 1)
   {ret= 0; goto ex;}

 strcpy(prog, argv[0]);
 if((flag & 1) && strchr(argv[0], '/') == NULL) {
     if(env_path == NULL)
       env_path= "/bin:/sbin";
     else if(env_path[0] == 0)
       env_path= "/bin:/sbin";
     if(Sregex_string(&pathlist, env_path, 0) <= 0)
       {ret= -1; goto ex;}
     for(cpt= npt= pathlist; npt != NULL; cpt= npt + 1) {
       npt= strchr(cpt, ':');
       if(npt != NULL)
         *npt= 0;
       if(strlen(cpt) + strlen(argv[0]) + 1 >= SfileadrL)
         {ret= -1; goto ex;}
       sprintf(prog, "%s/%s", cpt, argv[0]);
       ret= stat(prog, &stbuf);
       if(ret != -1)
     break;
       prog[0]= 0;
     }
     if(prog[0] == 0) {
       sprintf(xorriso->info_text, "Cannot find external program %s",
               Text_shellsafe(argv[0], sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
       ret= 0; goto ex;
     }
   }

 child_pid= fork();
 if(child_pid==-1) 
   return(-1);

 if(child_pid==0) {
                     /* this is the child process */

   sprintf(xorriso->info_text, "Executing external program %s",
                               Text_shellsafe(prog, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);

   execv(prog, argv); /* should never come back */
   fprintf(stderr,"--- execution of shell command failed:\n");
   fprintf(stderr,"    %s\n",cmd);
   exit(127);
 }


         /* this is the original process waiting for child to exit */
 do {
   /* try to read and print the reply */;
   ret= waitpid(child_pid,status,WNOHANG);
   if(ret==-1) {
     if(errno!=EINTR)
       ret= 0; goto ex;
   } else if(ret==0) {

#ifdef NIX

     /* >>> An interrupt key would be nice. */

     if((flag&4)) {
       ret= Asqueue_event_is_pending(agent->queue,0,0);
       if(ret>0) {
         Asagent_stderr(agent,"--- shell command interrupted",1);
         kill(child_pid,SIGTERM);
         ret= 2; goto ex;
       }
     }
#endif /* NIX */

 continue;
   } else {
 break;
   }
 } while(1);
 ret= 1;
ex:
 Sfile_make_argv("", "", &argc, &argv, 2);
 Sregex_string(&pathlist, NULL, 0);
 return(ret);
}


/* @param flag bit0= path is a command parameter
*/
int Xorriso_path_is_excluded(struct XorrisO *xorriso, char *path, int flag)
{
 int ret;
 char sfe[5*SfileadrL];

 if(!(xorriso->disk_excl_mode&1)) /* exclusion is off */
   return(0);
 if((flag&1) && !(xorriso->disk_excl_mode&2)) /* params are exempted */
   return(0);
 ret= Exclusions_match(xorriso->disk_exclusions, path,
                       !!(xorriso->disk_excl_mode&4));
 if(ret<0) {
   sprintf(xorriso->info_text,
           "Error during disk file exclusion decision");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
 }
 if(ret>0 && (flag&1)) {
   sprintf(xorriso->info_text, "Disk path parameter excluded by %s : %s",
          (ret==1 ? "-not_paths" : "-not_leaf"), Text_shellsafe(path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
 }
 return(ret);
}


int Xorriso_path_is_hidden(struct XorrisO *xorriso, char *path, int flag)
{
 int ret, hide_attrs= 0;

 ret= Exclusions_match(xorriso->iso_rr_hidings, path, 0);
 if(ret < 0) {
failure:;
   sprintf(xorriso->info_text, "Error during disk file hiding decision");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
   return(-1);
 }
 if(ret > 0)
   hide_attrs|= 1;
 ret= Exclusions_match(xorriso->joliet_hidings, path, 0);
 if(ret < 0)
   goto failure;
 if(ret > 0)
   hide_attrs|= 2;
 return(hide_attrs);
}


/* Normalize ACL and sort apart "access" ACL from "default" ACL.
 */
int Xorriso_normalize_acl_text(struct XorrisO *xorriso, char *in_text,
                     char **access_acl_text, char **default_acl_text, int flag)
{
 int ret, access_count= 0, default_count= 0, pass, is_default, line_len;
 int was_error= 0, line_count= 0, perms;
 char *acl_text= NULL, *cpt, *npt, *access_wpt= NULL, *default_wpt= NULL; 
 char *dpt= NULL, *ddpt= NULL, **wpt, *ppt;

 if(in_text[0] == 0 || strcmp(in_text, "clear") == 0 ||
    strcmp(in_text, "--remove-all") == 0) {
   *access_acl_text= *default_acl_text= NULL;
   return(1);
 } else if (strcmp(in_text, "--remove-default") == 0) {

   /* >>> protect Access-ACL and delete Default-ACL */;

   /* <<< */
   return(0);
   
 }

 acl_text= strdup(in_text);
 if(acl_text == NULL) {
   Xorriso_no_malloc_memory(xorriso, NULL, 0);
   {ret= -1; goto ex;}
 }

 /* From comma to newline */
 for(cpt= strchr(acl_text, ','); cpt != NULL; cpt= strchr(cpt + 1, ','))
   *cpt= '\n';

 /* Normalize to long text form
    and sort apart "access" ACL from "default" ACL */;
 for(pass= 0; pass < 2; pass++) {
   line_count= 0;
   for(cpt= acl_text; cpt != NULL; cpt= npt) {
     line_count++;
     npt= strchr(cpt, '\n');
     if(npt != NULL)
       npt++;
     if(*cpt == '#' || *cpt == '\n' || *cpt == 0)
   continue;

     is_default= 0;
     wpt= &access_wpt;
     if(*cpt == 'd') {
       is_default= 1;
       if(pass == 1)
         wpt= &default_wpt;
       cpt= strchr(cpt, ':');
       if(cpt == NULL) {
         was_error= line_count;
   continue;
       }
       cpt++;
     } 

     line_len= 0;
     dpt= strchr(cpt, ':');
     if(dpt != NULL)
       ddpt= strchr(dpt + 1, ':');
     if(dpt == NULL || ddpt == NULL) {
       was_error= line_count;
   continue;
     }
     if(*cpt == 'u') {
       if(pass == 0) {
         line_len+= 5;
         line_len+= ddpt - dpt;
       } else {
         strcpy(*wpt, "user:");
         strncpy(*wpt + 5, dpt + 1, ddpt - dpt);
         (*wpt)+= 5 + (ddpt - dpt);
       }
     } else if(*cpt == 'g') {
       if(pass == 0) {
         line_len+= 6 + (ddpt - dpt);
       } else {
         strcpy(*wpt, "group:");
         strncpy(*wpt + 6, dpt + 1, ddpt - dpt);
         (*wpt)+= 6 + (ddpt - dpt);
       }
     } else if(*cpt == 'o') {
       if(pass == 0) {
         if(ddpt - dpt > 1) {
           was_error= line_count;
   continue;
         }
         line_len+= 6 + (ddpt - dpt);
       } else {
         strcpy(*wpt, "other:");
         strncpy(*wpt + 6, dpt + 1, ddpt - dpt);
         (*wpt)+= 6 + (ddpt - dpt);
       }
     } else if(*cpt == 'm') {
       if(pass == 0) {
         if(ddpt - dpt > 1) {
           was_error= line_count;
   continue;
         }
         line_len+= 5 + (ddpt - dpt);
       } else {
         strcpy(*wpt, "mask:");
         strncpy(*wpt + 5, dpt + 1, ddpt - dpt);
         (*wpt)+= 5 + (ddpt - dpt);
       }

     } else {
       /* Unknown tag type */
       was_error= line_count;
   continue;
     }

     /* Examine permissions at ddpt + 1 */;
     perms= 0;
     for(ppt= ddpt + 1; *ppt != 0 && *ppt != '\n'; ppt++) {
       if(*ppt == 'r')
         perms|= 4;
       else if(*ppt == 'w')
         perms|= 2;
       else if(*ppt == 'x')
         perms|= 1;
       else if(*ppt == '-' || *ppt == ' ' || *ppt == '\t')
         ;
       else if(*ppt == '#')
     break;
       else {
         was_error= line_count;
     break;
       }
     }
     if(pass == 0) {
       line_len+= 4;
     } else {
       sprintf(*wpt, "%c%c%c\n",
          perms & 4 ? 'r' : '-', perms & 2 ? 'w' : '-', perms & 1 ? 'x' : '-');
       (*wpt)+= 4;
     }

     if(pass == 0) {
       if(is_default)
         default_count+= line_len;
       else
         access_count+= line_len;
     }
   }

   if(pass == 0) {
     *access_acl_text= calloc(access_count + 1, 1);
     *default_acl_text= calloc(default_count + 1, 1);
     if(access_acl_text == NULL || *default_acl_text == NULL) {
       Xorriso_no_malloc_memory(xorriso, access_acl_text, 0);
       {ret= -1; goto ex;}
     }
     access_wpt= *access_acl_text;
     default_wpt= *default_acl_text;
   } else {
     *access_wpt= 0;
     *default_wpt= 0;
   }
 }

 ret= 1;
ex:;
 if(acl_text != NULL)
   free(acl_text);
 if(was_error) {
   sprintf(xorriso->info_text,
           "Malformed ACL entries encountered. Last one in line number %d.",
           was_error);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
   return(0);
 }
 return(ret);
}