libisoburn/test/xorriso.c

/*

    ( cd .. ; libisoburn-develop/test/compile_xorriso.sh -g )

or

    cc -g -DXorriso_with_maiN -DXorriso_with_regeX -DXorriso_with_readlinE \
          -Wall -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE \
          -o test/xorriso \
          test/xorriso.c test/xorrisoburn.c \
          -lpthread -lreadline -lburn -lisofs -lisoburn 

or

    cc -g -DXorriso_with_regeX -DXorriso_with_readlinE \
          -Wall -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE \
          -c \
          test/xorriso.c test/xorrisoburn.c

*/

/* Command line oriented batch and dialog tool which creates, loads,
   manipulates and burns ISO 9660 filesystem images.

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

   Initial code of this program was derived from program src/askme.c out
   of scdbackup-0.8.8, Copyright 2007 Thomas Schmitt, BSD-License.

   Provided under GPL version 2, with the announcement that this might
   get changed in future. I would prefer BSD or a modifyied LGPL with no
   option to choose any kind of future GPL version.
   (This announcement affects only future releases of xorriso.
    If you obtain a copy licensed as "GPL version 2" then this license is
    not revocable for that particular copy, of course.)
*/

#define PROG_VERSION "0.0.0"

/** The source code release timestamp */
#include "xorriso_timestamp.h"
#ifndef Xorriso_timestamP
#define Xorriso_timestamP "-none-given-"
#endif

/** The binary build timestamp is to be set externally by the compiler */
#ifndef Xorriso_build_timestamP
#define Xorriso_build_timestamP "-none-given-"
#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 <fcntl.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <dirent.h>
#include <time.h>
#include <utime.h>
#include <pwd.h>
#include <grp.h>

/* eventually, this is done in xorriso_private.h : #include <regex.h> */

#ifdef Xorriso_with_readlinE
#ifdef Xorriso_with_old_readlinE
#include <readline.h>
#include <history.h>
#else /* Xorriso_with_old_readlinE */
#include <readline/readline.h>
#include <readline/history.h>
#endif /* ! Xorriso_with_old_readlinE */
#endif /* Xorriso_with_readlinE */

#define TSOB_FELD(typ,anz) (typ *) malloc((anz)*sizeof(typ));


/* Diet facility: exclude help texts from binaries */
/* This will eventually be redefined to eat up its content */
#define AlN(x) x


/* There is only one stage of diet: Xorriso_no_helP */
#ifdef Xorriso_no_helP
#undef AlN
#define AlN(x) 
#endif


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


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

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

/* The inner description of XorrisO */
#define Xorriso_is_xorriso_selF 1
#include "xorriso_private.h"


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


#ifndef Xorriso_sfile_externaL


char *Sfile_fgets(char *line, int maxl, FILE *fp)
{
 int l;
 char *ret;

 ret= fgets(line,maxl,fp);
 if(ret==NULL)
   return(NULL);
 l= strlen(line);
 if(l>0) if(line[l-1]=='\r') line[--l]= 0;
 if(l>0) if(line[l-1]=='\n') line[--l]= 0;
 if(l>0) if(line[l-1]=='\r') line[--l]= 0;
 return(ret);
}


int Sfile_fclose(FILE *fp)
{
 if(fp!=stdout && fp!=stdin && fp!=NULL)
   fclose(fp);
 return(1);
}


int Sfile_count_components(char *path, int flag)
/*
 bit0= do not ignore trailing slash
 bit1= do not ignore empty components (other than the empty root name)
*/
{
 int l,count= 0;
 char *cpt;

 l= strlen(path);
 if(l==0)
   return(0);
 count= 1;
 for(cpt= path+l-1;cpt>=path;cpt--) { 
   if(*cpt=='/') {
     if(*(cpt+1)==0   && !(flag&1))
 continue;
     if(*(cpt+1)=='/' && !(flag&2))
 continue;
     count++;
   }
 }
 return(count);
}


int Sfile_component_pointer(char *path, char **sourcept, int idx, int flag)
/*
 bit0= do not ignore trailing slash
 bit1= do not ignore empty components (other than the empty root name)
 bit2= accept 0 as '/'
*/
{
 int count= 0;
 char *spt;

 for(spt= path;*spt!=0 || (flag&4);spt++) {
   if(count>=idx) {
     *sourcept= spt;
     return(1);
   }
   if(*spt=='/' || *spt==0) {
     if(*(spt+1)=='/' && !(flag&2))
 continue;
     if(*(spt+1)==0 && !(flag&1))
 continue;
     count++;
   }
 }
 if((flag&1) && count>=idx)
   return(1);
 return(0);
}


int Sfile_add_to_path(char path[SfileadrL], char *addon, int flag)
{
 int l;

 l= strlen(path);
 if(l+1>=SfileadrL)
   return(0);
 if(l==0) {
   strcpy(path,"/");
   l= 1;
 } else if(path[l-1]!='/') {
   path[l++]= '/';
   path[l]= 0;
 }
 if(l+strlen(addon)>=SfileadrL)
   return(0);
 if(addon[0]=='/')
   strcpy(path+l,addon+1);
 else
   strcpy(path+l,addon);
 return(1);
}


int Sfile_prepend_path(char *prefix, char path[SfileadrL], int flag)
{
 int l, i;

 l= strlen(path)+strlen(prefix)+1;
 if(l>=SfileadrL) {

#ifdef Not_yeT
   /* >>> ??? how to transport messages to xorriso ? */
   sprintf(xorriso->info_text,
           "Combination of wd and relative address too long (%d > %d)",
           l,SfileadrL-1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
#endif

   return(-1);
 }
 l-= strlen(path);
 for(i= strlen(path)+1; i>=0; i--)
   path[i+l]= path[i];
 strcpy(path,prefix);
 path[l-1]= '/';
 return(1);
}

int Sfile_being_group_member(struct stat *stbuf, int flag)
{
 int i, suppl_groups;
 gid_t *suppl_glist;

 if (getegid()==stbuf->st_gid)
   return(1);
 suppl_groups= getgroups(0, NULL);
 suppl_glist= (gid_t *) malloc((suppl_groups + 1) * sizeof(gid_t));
 if (suppl_glist==NULL)
   return(-1);
 suppl_groups= getgroups(suppl_groups+1,suppl_glist);
 for (i= 0; i<suppl_groups; i++) {
   if (suppl_glist[i]==stbuf->st_gid) {
     free((char *) suppl_glist);
     return(1);
   }
 }
 free((char *) suppl_glist);
 return(0);
}


int Sfile_type(char *filename, int flag)
/*
 bit0= return -1 if file is missing 
 bit1= return a hardlink with siblings as type 5
 bit2= evaluate eventual link target rather than the link object itself
 bit3= return a socket or a char device as types 7 or 8 rather than 0
*/
/*
 return:
  0=unknown
  1=regular
  2=directory
  3=symbolic link
  4=named pipe
  5=multiple hardlink (with bit1)
  6=block device
  7=socket (with bit3)
  8=character device (with bit3)
*/
{
 struct stat stbuf;
 if(flag&4) {
   if(stat(filename,&stbuf)==-1) {
     if(flag&1) return(-1);
     else       return(0);
   }
 } else {
   if(lstat(filename,&stbuf)==-1) {
     if(flag&1) return(-1);
     else       return(0);
   }
 }
 if(S_ISREG(stbuf.st_mode)) {
   if(flag&2)
     if(stbuf.st_nlink>1)
       return(5);
   return(1);
 }
 if(S_ISDIR(stbuf.st_mode))
   return(2);
 if((stbuf.st_mode&S_IFMT)==S_IFLNK)
   return(3);
 if(S_ISFIFO(stbuf.st_mode))
   return(4);
 if(S_ISBLK(stbuf.st_mode))
   return(6);
 if(flag&8)
   if((stbuf.st_mode&S_IFMT)==S_IFSOCK)
     return(7);
 if(flag&8)
   if(S_ISCHR(stbuf.st_mode))
     return(8);
 return(0);
}


int Sfile_lookup_permissions(char *fname, int *perms, mode_t *st_mode,int flag)
/* perms: bit0= r , bit1= w , bit2= x */
/* return: <0 fatal error, 0= file nonexistent, 1=owner, 2=group, 3=other */
{
 struct stat stbuf;

 *perms= 0;
 if(stat(fname,&stbuf)==-1)
   return(0);
 *st_mode= stbuf.st_mode;
 if(geteuid()==stbuf.st_uid || geteuid()==0) {
   if(stbuf.st_mode & S_IRUSR)
     (*perms)|= 1; 
   if(stbuf.st_mode & S_IWUSR)
     (*perms)|= 2; 
   if(stbuf.st_mode & S_IXUSR)
     (*perms)|= 4; 
   return(1);
 }
 /* group membership is a complicated thing */
 if(Sfile_being_group_member(&stbuf,0)>0) {
   if(stbuf.st_mode & S_IRGRP)
     (*perms)|= 1; 
   if(stbuf.st_mode & S_IWGRP)
     (*perms)|= 2; 
   if(stbuf.st_mode & S_IXGRP)
     (*perms)|= 4; 
   return(2);
 }
 if(stbuf.st_mode & S_IROTH)
   (*perms)|= 1; 
 if(stbuf.st_mode & S_IWOTH)
   (*perms)|= 2; 
 if(stbuf.st_mode & S_IXOTH)
   (*perms)|= 4; 
 return(3);
}


int Sfile_select(int *fds, int fdcount, int fdidx[3], unsigned int microsec,
                 int flag)
/*
 bit0= check for reading (and choose one into fdidx[0])
 bit1= check for writing (and choose one into fdidx[1])
 bit2= check for exception (and choose one into fdidx[2])
 bit3= initialize fdidx
return-bits are set according to matching flag-bits
*/
{
 struct timeval wt;
 fd_set rds,wts,exs,*s;
 int ready,ret,i,j,max_fd= -1;

 if(flag&8)
   for(j=0;j<3;j++)
     fdidx[j]= 0;
 wt.tv_sec=  microsec/1000000;
 wt.tv_usec= microsec%1000000;
 FD_ZERO(&rds);
 FD_ZERO(&wts);
 FD_ZERO(&exs);
 for(i= 0;i<fdcount;i++) {
   if(fds[i]<0)
 continue;
   if(flag&1)
     FD_SET(fds[i],&rds);
   if(flag&2)
     FD_SET(fds[i],&wts);
   if(flag&4)
     FD_SET(fds[i],&exs);
   if(fds[i]>max_fd)
     max_fd= fds[i];
 }
 ready= select(max_fd+1,&rds,&wts,&exs,&wt);
 if(ready<=0)
   return(0);
 ret= 0;
 if(fdcount>0)
   for(j=0;j<2;j++)
     fdidx[j]= (fdidx[j]+1)%fdcount;
 for(i= 0;i<fdcount;i++) {
   for(j=0;j<3;j++) {
     if(j==0)
       s= &rds;
     else if(j==1)
       s= &wts;
     else
       s= &exs;
     if((flag&(1<<j)) && !(ret&(1<<j))) {
       if(fds[fdidx[j]]<0) 
         fdidx[j]= (fdidx[j]+1)%fdcount;
       else if(FD_ISSET(fds[fdidx[j]],s))
         ret|= (1<<j);
       else
         fdidx[j]= (fdidx[j]+1)%fdcount;
     }
   }
 }
 return(ret);
}


int Sfile_identical(char *file1, char *file2, int flag)
/*
 bit0= check whether it is the same  i-node 
*/
{
 FILE *fp1,*fp2;
 struct stat stbuf;
 int ret,c1,c2;
 ino_t ino1,ino2;
 dev_t dev1,dev2;

 ret= 0;

 if(flag&1){
   if(stat(file1,&stbuf)==-1) return(0);
   ino1= stbuf.st_ino;
   dev1= stbuf.st_dev;
   if(stat(file2,&stbuf)==-1) return(0);
   ino2= stbuf.st_ino;
   dev2= stbuf.st_dev;
   return((ino1==ino2) && (dev1==dev2));
 }

 fp1= fopen(file1,"rb");
 fp2= fopen(file2,"rb");
 if(fp1==NULL||fp2==NULL) goto fertig;
 while(1){
   c1= fgetc(fp1);
   c2= fgetc(fp2);
   if(c1==EOF && c2==EOF){
     ret= 1;
 break;
   }
   if(c1!=c2)
 break;
 }
fertig:;
 if(fp1!=NULL) fclose(fp1);
 if(fp2!=NULL) fclose(fp2);
 return(ret);
}


char *Sfile_datestr(time_t tim, short int flag)
/*
 bit0=with hours+minutes  
 bit1=with seconds

 bit8= local time rather than UTC
*/
{
 static char zeitcode[80]={"000000"};
 char puff[80];
 struct tm *azt;

 if(flag&256) 
   azt = localtime(&tim);
 else
   azt = gmtime(&tim);
 
 if(azt->tm_year>99)
   sprintf(zeitcode,"%c%1.1d%2.2d%2.2d",
           'A'+(azt->tm_year-100)/10,azt->tm_year%10,
           azt->tm_mon+1,azt->tm_mday);
 else
   sprintf(zeitcode,"%2.2d%2.2d%2.2d",
           azt->tm_year,azt->tm_mon+1,azt->tm_mday);
 if(flag&1){
   sprintf(puff,".%2.2d%2.2d",azt->tm_hour,azt->tm_min);
   strcat(zeitcode,puff);
 }
 if(flag&2){
   sprintf(puff,"%2.2d",azt->tm_sec);
   strcat(zeitcode,puff);
 }

 return(zeitcode);
}


int Sfile_scale(double value, char *result, int siz, double thresh, int flag)
/*
 bit0= eventually ommit 'b'
 bit1= make text as short as possible
 bit2= no fraction (if it would fit at all)
*/
{
 char scale_c,scales[6],form[80];
 int i,dec_siz= 0,avail_siz= 1;

 strcpy(scales,"bkmgtp");
 scale_c= scales[0];
 for(i=1;scales[i]!=0;i++) {
   if(value<thresh-0.5) 
 break;
   value/= 1024.0;
   scale_c= scales[i];
 } 
 if(scale_c!='b' && !(flag&4)) { /* is there room for fractional part ? */
   avail_siz= siz-1;
   sprintf(form,"%%.lf");
   sprintf(result,"%.lf",value);
   if(strlen(result)<=avail_siz-2) 
     dec_siz= 1;                                  /* we are very modest */
 }
 if(scale_c=='b' && (flag&1)) {
   if(flag&2)
     sprintf(form,"%%.lf");
   else
     sprintf(form,"%%%d.lf",siz);
   sprintf(result,form,value);
 } else {
   if(flag&2)
     sprintf(form,"%%.lf%%c");
   else if(dec_siz>0) 
     sprintf(form,"%%%d.%dlf%%c",avail_siz,dec_siz);
   else
     sprintf(form,"%%%d.lf%%c",siz-1);
   sprintf(result,form,value,scale_c);
 }
 return(1);
}


int Sfile_destroy_argv(int *argc, char ***argv, int flag)
{
 int i;

 if(*argc>0 && *argv!=NULL){
   for(i=0;i<*argc;i++){
     if((*argv)[i]!=NULL)
       Smem_freE((*argv)[i]);
   }
   Smem_freE((char *) *argv);
 }
 *argc= 0;
 *argv= NULL;
 return(1);
}


int Sfile_make_argv(char *progname, char *line, int *argc, char ***argv,
                    int flag)
/*
 bit0= read progname as first argument from line
 bit1= just release argument list argv and return
 bit2= abort with return(0) if incomplete quotes are found
 bit3= eventually prepend missing '-' to first argument read from line
*/
{
 int i,pass,maxl=0,l,argzaehl=0,bufl,line_start_argc;
 char *cpt,*start;
 char buf[SfileadrL];

 Sfile_destroy_argv(argc,argv,0);
 if(flag&2) return(1);

 for(pass=0;pass<2;pass++) {
   cpt= line-1;
   if(!(flag&1)){
     argzaehl= line_start_argc= 1;
     if(pass==0)
       maxl= strlen(progname);
     else
       strcpy((*argv)[0],progname);
   } else {
     argzaehl= line_start_argc= 0;
     if(pass==0) maxl= 0;
   }
   while(*(++cpt)!=0){
   if(isspace(*cpt)) continue;
     start= cpt;
     buf[0]= 0;
     cpt--;
     while(*(++cpt)!=0) {
     if(isspace(*cpt)) break;
       if(*cpt=='"'){
         l= cpt-start; bufl= strlen(buf);
         if(l>0) {strncat(buf,start,l);buf[bufl+l]= 0;}
         l= strlen(buf);
         start= cpt+1;
         while(*(++cpt)!=0) if(*cpt=='"') break;
         if((flag&4) && *cpt==0)
           return(0);
         l= cpt-start; bufl= strlen(buf);
         if(l>0) {strncat(buf,start,l);buf[bufl+l]= 0;}
         start= cpt+1;
       }else if(*cpt=='\''){
         l= cpt-start; bufl= strlen(buf);
         if(l>0) {strncat(buf,start,l);buf[bufl+l]= 0;}
         l= strlen(buf);
         start= cpt+1;
         while(*(++cpt)!=0) if(*cpt=='\'') break;
         if((flag&4) && *cpt==0)
           return(0);
         l= cpt-start; bufl= strlen(buf);
         if(l>0) {strncat(buf,start,l);buf[bufl+l]= 0;}
         start= cpt+1;
       }
     if(*cpt==0) break;
     }
     l= cpt-start;
     bufl= strlen(buf);
     if(l>0) {strncat(buf,start,l);buf[bufl+l]= 0;}
     l= strlen(buf);
     if(pass==0){
       if(argzaehl==line_start_argc && (flag&8))
         if(buf[0]!='-' && buf[0]!=0 && buf[0]!='#')
           l++;
       if(l>maxl) maxl= l;
     }else{
       strcpy((*argv)[argzaehl],buf);
       if(argzaehl==line_start_argc && (flag&8))
         if(buf[0]!='-' && buf[0]!=0 && buf[0]!='#')
           sprintf((*argv)[argzaehl],"-%s", buf);
     }
     argzaehl++;
   if(*cpt==0) break;
   }
   if(pass==0){
     *argc= argzaehl;
     if(argzaehl>0) {
         *argv= (char **) Smem_malloC(argzaehl*sizeof(char *));
       if(*argv==NULL)
         return(-1);
     }
     for(i=0;i<*argc;i++) {
       (*argv)[i]= (char *) Smem_malloC((maxl+1));
       if((*argv)[i]==NULL)
         return(-1);
     }
   }
 }
 return(1);
}


/* @param flag bit0= append */
int Sfile_str(char target[SfileadrL], char *source, int flag)
{
 int l;

 l= strlen(source);
 if(flag&1)
   l+= strlen(target);
 if(l>=SfileadrL) {
   fprintf(stderr, "--- Path string overflow (%d > %d). Malicious input ?\n",
           l,SfileadrL-1);
   return(0);
 }
 if(flag&1)
   strcat(target, source);
 else
   strcpy(target, source);
 return(1);
}


/** Combine environment variable HOME with given filename
    @param filename Address relative to $HOME
    @param fileadr Resulting combined address
    @param fa_size Size of array fileadr
    @param flag Unused yet
    @return 1=ok , 0=no HOME variable , -1=result address too long
*/
int Sfile_home_adr_s(char *filename, char *fileadr, int fa_size, int flag)
{
 char *home;

 strcpy(fileadr,filename);
 home= getenv("HOME");
 if(home==NULL)
   return(0);
 if(strlen(home)+strlen(filename)+1>=fa_size)
   return(-1);
 strcpy(fileadr,home);
 if(filename[0]!=0){
   strcat(fileadr,"/");
   strcat(fileadr,filename);
 }
 return(1);
}


/** Return a double representing seconds and microseconds since 1 Jan 1970 */
double Sfile_microtime(int flag)
{
 struct timeval tv;
 struct timezone tz;
 gettimeofday(&tv,&tz);
 return((double) (tv.tv_sec+1.0e-6*tv.tv_usec));
}


#endif /*  Xorriso_sfile_externaL */


/* --------------------------------- misc --------------------------------- */


int Write_to_channel(char *text, int channel_no, int flag)
/*
 bit0= packet write disabled, write to stdin resp. stderr
 bit1= text is the name of the log file for the given channel 
 bit2= text is the name of the consolidated packet log file for all channels 
bit15= with bit1 or bit2: close depicted log file
*/
{
 char *rpt,*npt,ret= 1;
 char prefix[16];
 static int num_channels= 4;
 static char channel_prefixes[4][4]= {".","R","I","M"};
 static FILE *logfile_fp[4]= {NULL,NULL,NULL,NULL};
 static FILE *pktlog_fp= NULL;

 if(channel_no<0 || channel_no>=num_channels)
   return(-1);

 /* Logfiles */
 if((flag&2) && logfile_fp[channel_no]!=NULL) {
   fprintf(logfile_fp[channel_no],
     "! end ! end ! end ! end ! end ! end ! end ! end xorriso log : %s : %s\n",
           channel_prefixes[channel_no],Sfile_datestr(time(0),1|2|256));
   fclose(logfile_fp[channel_no]);
   logfile_fp[channel_no]= NULL;
 }
 if((flag&4) && pktlog_fp!=NULL) {
   fprintf(pktlog_fp,
 "I:1:! end ! end ! end ! end ! end ! end ! end ! end xorriso log : %s : %s\n",
           channel_prefixes[channel_no],Sfile_datestr(time(0),1|2|256));
   fclose(pktlog_fp);
   pktlog_fp= NULL;
 }
 if(flag&(1<<15))
   return(1);
 if((flag&2)) {
   logfile_fp[channel_no]= fopen(text,"a");
   if(logfile_fp[channel_no]==NULL)
     return(0);
   fprintf(logfile_fp[channel_no],
  "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! xorriso log : %s : %s\n",
           channel_prefixes[channel_no],Sfile_datestr(time(0),1|2|256));
   fflush(logfile_fp[channel_no]);
 }
 if((flag&4)) {
   pktlog_fp= fopen(text,"a");
   if(pktlog_fp==NULL)
     return(0);
   fprintf(pktlog_fp,
  "I:1:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! xorriso log : . : %s\n",
           Sfile_datestr(time(0),1|2|256));
   fflush(pktlog_fp);
 }
 if(flag&(2|4))
   return(1);
 if(flag&1) {
   if(channel_no==1 || channel_no==3)
     printf("%s",text);
   if(channel_no==2 || channel_no==3)
     fprintf(stderr,"%s",text);
   if(logfile_fp[channel_no]!=NULL) {
     fprintf(logfile_fp[channel_no],"%s",text);
     fflush(logfile_fp[channel_no]);
   }
   if(pktlog_fp!=NULL)
     return(1);
 }
 rpt= text;
 sprintf(prefix,"%s:x: ",channel_prefixes[channel_no]);
 while(*rpt!=0) {
   npt= strchr(rpt,'\n');
   if(npt==NULL)
     prefix[2]= '0';
   else
     prefix[2]= '1';
   if(!(flag&1)) {
     ret= fwrite(prefix,5,1,stdout);
     if(ret<=0)
       return(0);
   }
   if(pktlog_fp!=NULL) {
     ret= fwrite(prefix,5,1,pktlog_fp);
     if(ret<=0)
       return(0);
   }
   if(npt==NULL) {
     if(!(flag&1)) {
       ret= fwrite(rpt,strlen(rpt),1,stdout);
       if(ret<=0)
         return(0);
       ret= fwrite("\n",1,1,stdout);
       if(ret<=0)
         return(0);
     }
     if(pktlog_fp!=NULL) {
       ret= fwrite(rpt,strlen(rpt),1,pktlog_fp);
       if(ret<=0)
         return(0);
       ret= fwrite("\n",1,1,pktlog_fp);
       if(ret<=0)
         return(0);
     }
 break;
   } else {
     if(!(flag&1)) {
       ret= fwrite(rpt,npt+1-rpt,1,stdout);
       if(ret<=0)
         return(0);
     }
     if(pktlog_fp!=NULL) {
       ret= fwrite(rpt,npt+1-rpt,1,pktlog_fp);
       if(ret<=0)
         return(0);
     }
   }
   rpt= npt+1;
 }
 if(!(flag&1))
   fflush(stdout);
 if(pktlog_fp!=NULL)
   fflush(pktlog_fp);
 return(1);
}


int Exec_cmd(char *prog, char *cmd, char *simple_arg, char **argv,
             char errmsg[SfileadrL], int flag)
/*
 bit0= package mode (!bit0 of Write_to_channel())
*/
{
 int wait_status,is_dead= 0,pipes_open= 0,ret,channel_no;
 int stdout_pipe[2],stderr_pipe[2],fds[2],fdidx[3];
 char **exec_argv,*simple_argv[3],buffer[256];
 pid_t pid,dead_pid;
 static int debug= 0;

 errmsg[0]= 0;
 if(debug)
   fprintf(stderr,"Exec_cmd():fork\n");

 /* create pipes */
 if(pipe(stdout_pipe)==-1) {
cannot_make_pipe:;
   sprintf(errmsg,"%s : cannot create two pipes\n   reason given:   %s\n",
                  prog,strerror(errno));
   return(-1);
 }
 if(pipe(stderr_pipe)==-1) {
   close(stdout_pipe[0]);
   close(stdout_pipe[1]);
   goto cannot_make_pipe;
 }
 pipes_open= 1;

 pid= fork();
 if(pid==-1) {
   sprintf(errmsg,"%s : cannot fork a new process\n   reason given:   %s\n",
                  prog,strerror(errno));
   {ret= -1; goto father_ex;}
 } else if(pid>0) { /* original process */
   if(debug)
     fprintf(stderr,"Exec_cmd():father\n");
   /* close unused pipe ends so we register EOF by the child process */
   close(stdout_pipe[1]);
   close(stderr_pipe[1]);
   fds[0]= stdout_pipe[0];
   fds[1]= stderr_pipe[0];
   is_dead= 0;
   while(1) {
     if((fds[0]==-1 && fds[1]==-1)) { /* not before both pipes have closed */
       dead_pid= wait3(&wait_status,WNOHANG,NULL);
       if(dead_pid==pid) {
         is_dead= 1;
   break;
       } else if(dead_pid<0) {
         sprintf(errmsg,
                 "%s : error while waiting for end of sub process\n   %s\n",
                 prog,strerror(errno));
         {ret= -1; goto father_ex;}
       }
     }

     /* check for input at both pipes */;
     ret= Sfile_select(fds,2,fdidx,100000,1|8);
     if(ret<=0 || fdidx[0]<0 || fdidx[0]>1)
   continue;
     ret= read(fds[fdidx[0]],buffer,sizeof(buffer)-3);
     if(ret<0) {
       sprintf(errmsg,"--- error %d on read from %s pipe : %s\n",
                      errno,(fdidx[0]?"stdout":"stderr"),
                      (errno>0?strerror(errno):"-unknown error-"));
       {ret= -1; goto father_ex;}
     }
     if(ret==0) {
       fds[fdidx[0]]= -1;
   continue;
     }  
     buffer[ret]= 0;
     channel_no= fdidx[0]+1;
     ret= Write_to_channel(buffer,channel_no,!(flag&1));
     if(ret<=0) {
       sprintf(errmsg,"--- error %d on write to %s : %s\n",
                      errno,(fdidx[0]?"stdout":"stderr"),
                      (errno>0?strerror(errno):"-unknown error-"));
       {ret= -1; goto father_ex;}
     }
   }
   ret= 127;
   if(WIFEXITED(wait_status))
     ret= WEXITSTATUS(wait_status);
father_ex:;
   if(pipes_open) {
     close(stdout_pipe[0]);
     close(stderr_pipe[0]);
   }
   return(ret);
 }

 if(debug)
   fprintf(stderr,"Exec_cmd():child\n");

 /* Connect stdout and stderr to the appropriate ends of the pipes. */
 close(1);
 ret= dup(stdout_pipe[1]);
 if(ret==-1) {
cannot_dup_pipe:;
   sprintf(errmsg,
         "%s : cannot redirect standard i/o to pipes\n   reason given:   %s\n",
           prog,strerror(errno));
   Write_to_channel(errmsg,2,!(flag&1));
   exit(1);
 }
 close(2);
 ret= dup(stderr_pipe[1]);
 if(ret==-1)
   goto cannot_dup_pipe;
 /* close pipes so we register EOF by the father process */
 close(stdout_pipe[0]);
 close(stdout_pipe[1]);
 close(stderr_pipe[0]);
 close(stderr_pipe[1]);

 /* switch process to desired program */
 if(simple_arg!=NULL) {
   simple_argv[0]= cmd;
   simple_argv[1]= simple_arg;
   simple_argv[2]= NULL;
   exec_argv= simple_argv;
 } else {
   exec_argv= argv;
 }
 if(debug) { int i;
   fprintf(stderr,"debug: cmd='%s'\n",cmd);
   for(i=0;exec_argv[i]!=NULL;i++)
     fprintf(stderr,"debug: argv[%d]='%s'\n",i,exec_argv[i]);
 }
 if(strchr(cmd,'/')!=NULL)
   execv(cmd,exec_argv);
 else
   execvp(cmd,exec_argv);
 sprintf(errmsg,"%s : cannot start program %s\n   reason given:   %s\n",
                prog,cmd,strerror(errno));
 Write_to_channel(errmsg,2,!(flag&1));
 exit(127); 
}


int Exec_cmd_line(char *prog, char *cmd_line,
                  int extra_argc, char **extra_argv, char *errmsg, int flag)
/*
 bit0= packade mode (!bit0 of Write_to_channel())
*/
{
 int ret,cmd_argc= 0,i,w;
 char **cmd_argv= NULL,**argv= NULL;

 ret= Sfile_make_argv("",cmd_line,&cmd_argc,&cmd_argv,1);
 if(ret<=0)
   {ret= -1; goto ex;}
 argv= TSOB_FELD(char *,cmd_argc+extra_argc+1);
 if(argv==NULL)
   {ret= -1; goto ex;}
 w= 0;
 for(i=0;i<cmd_argc;i++)
   argv[w++]= cmd_argv[i];
 for(i=0;i<extra_argc;i++)
   argv[w++]= extra_argv[i];
 argv[w]= NULL;
 ret= Exec_cmd(prog,argv[0],NULL,argv,errmsg,flag&1);
ex:;
 if(argv!=NULL)
   free((char *) argv);
 Sfile_make_argv("",cmd_line,&cmd_argc,&cmd_argv,2);
 return(ret);
}


int Strcmp(const void *pt1, const void *pt2)
{
 return(strcmp(*((char **) pt1), *((char **) pt2)));
}


int Sort_argv(int argc, char **argv, int flag)
{
 if(argc<=0)
   return(2);
 qsort(argv,(size_t) argc,sizeof(char *),Strcmp);
 return(1);
}


int Set_bit(int *data, int idx, int flag)
/*
 bit0= clear bit
*/
{
 if(idx<0 || idx>31)
   return(0);
 if(flag&1)
   (*data)&= ~(1<<idx);
 else
   (*data)|= (1<<idx);
 return(1);
}


FILE *Afile_fopen(char *filename, char *mode, int flag)
/*
 bit0= do not print error message on failure
 bit6= write packeted error messages (see Write_to_channel())
*/
{
 FILE *fp= NULL;
 char errmsg[2*SfileadrL];

 if(strcmp(filename,"-")==0) {
   if(mode[0]=='a' || mode[0]=='w' ||
      (mode[0]=='r' && mode[1]=='+') ||
      (mode[0]=='r' && mode[1]=='b' && mode[2]=='+')) 
     fp= stdout;
   else
     fp= stdin;
 } else if(strncmp(filename,"tcp:",4)==0){
   sprintf(errmsg,"sorry - TCP/IP service isn't implemented yet.\n");
   Write_to_channel(errmsg,2,!(flag&64));
 } else if(strncmp(filename,"file:",5)==0){
   fp= fopen(filename+5,mode);
 } else {
   fp= fopen(filename,mode);
 }
 if(fp==NULL){
   if(!(flag&1)) {
     sprintf(errmsg,"failed to open file '%s' in %s mode\n",filename,mode);
     if(errno>0)
       sprintf(errmsg+strlen(errmsg),"   %s\n",strerror(errno));
     Write_to_channel(errmsg,2,!(flag&64));
   }
   return(NULL);
 }
 return(fp);
}


/** Convert a text into a number of type double and multiply it by unit code
    [kmgtpe] (2^10 to 2^60) or [s] (2048). (Also accepts capital letters.)
    @param text Input like "42", "2k", "3.14m" or "-1g"
    @param flag Bitfield for control purposes:
                bit0= return -1 rathern than 0 on failure
    @return The derived double value
*/
double Scanf_io_size(char *text, int flag)
/*
 bit0= default value -1 rather than 0
*/
{
 int c;
 double ret= 0.0;

 if(flag&1)
   ret= -1.0;
 if(text[0]==0)
   return(ret);
 sscanf(text,"%lf",&ret);
 c= text[strlen(text)-1];
 if(c=='k' || c=='K') ret*= 1024.0;
 if(c=='m' || c=='M') ret*= 1024.0*1024.0;
 if(c=='g' || c=='G') ret*= 1024.0*1024.0*1024.0;
 if(c=='t' || c=='T') ret*= 1024.0*1024.0*1024.0*1024.0;
 if(c=='p' || c=='P') ret*= 1024.0*1024.0*1024.0*1024.0*1024.0;
 if(c=='e' || c=='E') ret*= 1024.0*1024.0*1024.0*1024.0*1024.0*1024.0;
 if(c=='s' || c=='S') ret*= 2048.0;
 return(ret);
}


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


#ifndef Xorriso_sregex_externaL

#ifndef Smem_malloC
#define Smem_malloC malloc
#endif
#ifndef Smem_freE
#define Smem_freE free
#endif


int Sregex_string_cut(char **handle, char *text, int len, int flag)
/*
 bit0= append (text!=NULL)
*/
{
 int l=0;
 char *old_handle;

 if((flag&1)&&*handle!=NULL)
   l+= strlen(*handle);
 old_handle= *handle;
 if(text!=NULL) {
   l+= len;
   *handle= TSOB_FELD(char,l+1);
   if(*handle==NULL) {
     *handle= old_handle;
     return(0);
   }
   if((flag&1) && old_handle!=NULL)
     strcpy(*handle,old_handle);
   else
     (*handle)[0]= 0;
   if(len>0)
     strncat(*handle,text,len);
 } else {
   *handle= NULL;
 }
 if(old_handle!=NULL)
   Smem_freE(old_handle);
 return(1);
}


int Sregex_string(char **handle, char *text, int flag)
/*
 bit0= append (text!=NULL)
*/
{
 int ret,l=0;

 if(text!=NULL)
   l= strlen(text);
 
/* #define Sregex_looking_for_contenT 1 */
#ifdef Sregex_looking_for_contenT
 /* a debugging point if a certain text content has to be caught */
 if(text!=NULL)
   if(strcmp(text,"clear")==0)
     ret= 0;
#endif

 ret= Sregex_string_cut(handle,text,l,flag&1);
 return(ret);
}


/*
  from Juergen Helbing's  yencode-c.txt 
  found at  www.yenc.org  , Feb 4,  2002
  license : "It is public domain - as well as the yEnc specification"
  some alterations made to adapt it to Sregex_crc32() 

  seems to be compatible with SFV/CSV files
*/                       

int Sregex_crc32_yenc(char *data, int len, unsigned long *crc, int flag)
/*
 bit0= start of data polynom
*/
{
 /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
 static unsigned long crc_tab[256] = {
   0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 
   0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
   0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
   0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
   0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
   0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
   0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
   0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
   0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
   0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
   0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
   0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
   0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
   0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
   0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
   0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
   0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
   0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
   0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
   0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
   0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
   0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
   0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
   0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
   0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
   0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
   0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
   0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
   0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
   0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
   0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
   0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
   0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
   0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
   0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
   0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
   0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
   0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
   0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
   0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
   0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
   0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
   0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
   0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
   0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
   0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
   0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
   0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
   0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
   0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
   0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
   0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
   0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
   0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
   0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
   0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
   0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
   0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
   0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
   0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
   0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
   0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
   0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
   0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};

 int k;
 unsigned long crc_val,ch1,ch2,cc;

 if(flag&1)
   crc_val = ~0;
 else
   crc_val = ~*crc;

 for(k=0;k<len;k++) {
   cc= data[k] & 0xffL;
   ch1= (crc_val ^ cc) & 0xffL;
   ch1= crc_tab[ch1];
   ch2= (crc_val>>8L) & 0xffffffL;
   crc_val= ch1 ^ ch2;
 }
 *crc= ~crc_val;
 return(1);
}

#endif /*  Xorriso_sregex_externaL */


#ifndef Xorriso_text_shellsafe_externaL 

char *Text_shellsafe(char *in_text, char *out_text, int flag)
{
 int l,i,w=0;

 /* enclose everything by hard quotes */
 l= strlen(in_text);
 out_text[w++]= '\'';
 for(i=0;i<l;i++){
   if(in_text[i]=='\''){
     /* escape hard quote within the text */
     out_text[w++]= '\'';
     out_text[w++]= '"';
     out_text[w++]= '\'';
     out_text[w++]= '"';
     out_text[w++]= '\'';
   } else {
     out_text[w++]= in_text[i];
   }
 }
 out_text[w++]= '\'';
 out_text[w++]= 0;
 return(out_text);
}


#endif /* ! Xorriso_text_shellsafe_externaL */



 
#ifndef Xorriso_fileliste_externaL 

/* ??? ts A71006 : Is this compatible with mkisofs pathspecs ?
                   I dimly remember so */

int Fileliste__target_source_limit(char *line, char sep, char **limit_pt,
                                    int flag)
{
 char *npt;

 for(npt= line;*npt!=0;npt++) {
   if(*npt=='\\') {
     if(*(npt+1)!=0)
       npt++;
 continue;
   }
   if(*npt=='=')
 break;
 }
 if(*npt==0)
   npt= NULL;
 (*limit_pt)= npt;
 return(npt!=NULL);
}


int Fileliste__unescape_target(char *line, char *endpt, char sep, int flag)
{
 char *wpt,*rpt;

 if(endpt==NULL)
   endpt= line+strlen(line);

 /* unescape sep and '\\' */
 wpt= line;
 for(rpt= line; rpt<endpt; rpt++) {
   if(*rpt=='\\') {
     if(*(rpt+1)==sep || *(rpt+1)=='\\')
       rpt++;
   }
   *(wpt++)= *rpt;
 }
 *wpt= 0;
 return(1);
} 


int Fileliste__escape_target(char *target, int flag)
{
 int i,offset= 0;
 /* escape '=' and '\\' in target address */
 for(i= strlen(target)-1;i>=0;i--)
   if(target[i]=='=' || target[i]=='\\')
     offset++;
 target[strlen(target)+offset]= 0;
 for(i= strlen(target)-1;i>=0;i--) {
   if(target[i]=='=' || target[i]=='\\') {
     target[i+offset]= target[i];
     offset--;
     target[i+offset]= '\\';
   } else {
     target[i+offset]= target[i];
   }
 }
 return(1);
}

#endif /* ! Xorriso_fileliste_externaL */


#define Xorriso_cleanup_externaL 1
#ifndef Xorriso_cleanup_externaL

/* <<< ??? ts A71006 : will this be replaced by the libburn signal handler ? */

#include <signal.h>
typedef void (*sighandler_t)(int);


/* Signals to be caught */
static int signal_list[]= {
 SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT,
 SIGFPE, SIGSEGV, SIGPIPE, SIGALRM, SIGTERM,
 SIGUSR1, SIGUSR2, SIGXCPU, SIGTSTP, SIGTTIN,
 SIGTTOU,
 SIGBUS, SIGPOLL, SIGPROF, SIGSYS, SIGTRAP,
 SIGVTALRM, SIGXCPU, SIGXFSZ, -1
};
static char *signal_name_list[]= {
 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGABRT",
 "SIGFPE", "SIGSEGV", "SIGPIPE", "SIGALRM", "SIGTERM",
 "SIGUSR1", "SIGUSR2", "SIGXCPU", "SIGTSTP", "SIGTTIN",
 "SIGTTOU",
 "SIGBUS", "SIGPOLL", "SIGPROF", "SIGSYS", "SIGTRAP",
 "SIGVTALRM", "SIGXCPU", "SIGXFSZ", "@"
};
static int signal_list_count= 24;


/* Signals not to be caught */
static int non_signal_list[]= {
  SIGKILL, SIGCHLD, SIGSTOP, SIGURG, SIGWINCH, -1
};
static int non_signal_list_count= 5;


/* run time dynamic part */
static char cleanup_msg[SfileadrL]= {""};
static int cleanup_exiting= 0;

static void *cleanup_app_handle= NULL;
static Cleanup_app_handler_T cleanup_app_handler= NULL;
static int cleanup_perform_app_handler_first= 0;


static int Cleanup_handler_exit(int exit_value, int signum, int flag)
{
 int ret;

 if(cleanup_perform_app_handler_first)
   if(cleanup_app_handler!=NULL) {
     ret= (*cleanup_app_handler)(cleanup_app_handle,signum,0);
     if(ret==2)
       return(2);
   }
 if(cleanup_exiting) {
   if(cleanup_msg[0]!=0)
     fprintf(stderr,"%s\n",cleanup_msg);
   fprintf(stderr,"cleanup: ABORT : repeat by pid=%d, signum=%d\n",
           getpid(),signum);
   return(0);
 }
 cleanup_exiting= 1;
 if(cleanup_msg[0]!=0)
   fprintf(stderr,"%s\n",cleanup_msg);
 alarm(0);
 if(!cleanup_perform_app_handler_first)
   if(cleanup_app_handler!=NULL)
     (*cleanup_app_handler)(cleanup_app_handle,signum,0);
 exit(exit_value);
}


static void Cleanup_handler_generic(int signum)
{
 int i;

 sprintf(cleanup_msg,"UNIX-SIGNAL caught:  %d  errno= %d",signum,errno);
 for(i= 0; i<signal_list_count; i++)
   if(signum==signal_list[i]) {
     sprintf(cleanup_msg,"UNIX-SIGNAL:  %s  errno= %d",
             signal_name_list[i],errno);
 break;
   }
 Cleanup_handler_exit(1,signum,0);
}


static int Cleanup_set_handlers(void *handle,
                                Cleanup_app_handler_T handler, int flag)
/*
 bit0= set to default handlers
 bit1= set to ignore
 bit2= set cleanup_perform_app_handler_first
 bit3= set SIGABRT to handler (makes sense with bits 0 or 1)
*/
{
 int i,j,max_sig= -1,min_sig= 0x7fffffff;
 sighandler_t sig_handler;

 cleanup_msg[0]= 0;
 cleanup_app_handle= handle;
 cleanup_app_handler= handler;
 if(flag&4)
   cleanup_perform_app_handler_first= 1;
 if(flag&1)
   sig_handler= SIG_DFL;
 else if(flag&2)
   sig_handler= SIG_IGN;
 else
   sig_handler= Cleanup_handler_generic;
 /* set all signal numbers between the lowest and highest in the list
    except those in the non-signal list */
 for(i= 0; i<signal_list_count; i++) {
   if(signal_list[i]>max_sig)
     max_sig= signal_list[i];
   if(signal_list[i]<min_sig)
     min_sig= signal_list[i];
 }
 for(i= min_sig; i<=max_sig; i++) {
   for(j= 0; j<non_signal_list_count; j++)
     if(i==non_signal_list[j])
   break;
   if(j>=non_signal_list_count) {
     if(i==SIGABRT && (flag&8))
       signal(i,Cleanup_handler_generic);
     else
       signal(i,sig_handler);
   }
 }
 return(1);
}


#endif /* ! Xorriso_cleanup_externaL */


#ifndef Xorriso_dirseq_externaL

/* ------------------------------------------------------------------------ */
/* DirseQ : crawl along a directory's content list */

static int Dirseq_buffer_sizE= 1000;

struct DirseQ {
  DIR *dirpt;
  int count;  
  char **buffer;
  int buffer_size;
  int buffer_fill;
  int buffer_rpt;
};

int Dirseq_destroy(struct DirseQ **o, int flag);
int Dirseq_next_adrblock(struct DirseQ *o, char *replies[], int *reply_count,
                         int max_replies, int flag);


int Dirseq_new(struct DirseQ **o, char *dir, int flag)
/*
 bit0= do not complain about failed opendir()
*/
{
 int ret,i;
 struct DirseQ *m;

 m= *o= TSOB_FELD(struct DirseQ,1);
 if(m==NULL)
   return(-1);
 m->dirpt= NULL;
 m->count= 0;
 m->buffer= NULL;
 m->buffer_size= 0;
 m->buffer_fill= 0;
 m->buffer_rpt= 0;
 m->buffer= TSOB_FELD(char *,Dirseq_buffer_sizE);
 if(m->buffer==NULL)
   {ret= -1; goto failed;}
 m->buffer_size= Dirseq_buffer_sizE;
 for(i= 0;i<m->buffer_size;i++)
   m->buffer[i]= NULL;
 if(dir[0]==0)
   m->dirpt= opendir(".");
 else
   m->dirpt= opendir(dir);
 if(m->dirpt==NULL) {
   if(!(flag&1))
     fprintf(stderr,"opendir(%s) failed : %s\n",dir,strerror(errno));
   ret= 0; goto failed;
 }
 return(1);
failed:;
 Dirseq_destroy(o,0);
 return(ret);
}


int Dirseq_destroy(struct DirseQ **o, int flag)
{
 int i;

 if(*o==NULL)
   return(0);
 if((*o)->dirpt!=NULL)
   closedir((*o)->dirpt);
 if((*o)->buffer!=NULL) {
   for(i=0;i<(*o)->buffer_size;i++)
     if((*o)->buffer[i]!=NULL)
       free((*o)->buffer[i]);
   free((char *) (*o)->buffer);
 }
 free((char *) *o);
 (*o)= NULL;
 return(1);
}


int Dirseq_rewind(struct DirseQ *o, int flag)
{
 rewinddir(o->dirpt);
 return(1);
}


int Dirseq_next_adr(struct DirseQ *o, char reply[SfileadrL], int flag)
/*
flag:
 bit0= permission to use buffer
 bit1= do not increment counter
 bit2= ignore buffer in any case
 bit3= do not exclude '.' and '..'
 bit4= sort buffer
 bit5= sort only incomplete last buffer
return:
 <0 error
 0= no more entries available
 1= ok, reply is valid
*/
{
 int ret;
 struct dirent *entry;
 char *name;

 static int override_flag_0= 0,override_flag_1= 32;
 flag= (flag&~override_flag_0)|override_flag_1;

 if((flag&1) && o->buffer_rpt>=o->buffer_fill) {
   /* permission to buffer and buffer empty : load a buffer */
   ret= Dirseq_next_adrblock(o,o->buffer,&(o->buffer_fill),
                             o->buffer_size,2|4|(flag&16));
   if(ret<=0)
     return(ret);
   o->buffer_rpt= 0;
   if((flag&32) && o->buffer_fill<o->buffer_size && o->buffer_fill>0) 
     Sort_argv(o->buffer_fill,o->buffer,0);
 }
 if(o->buffer_rpt<o->buffer_fill && !(flag&4)) {
   ret= Sfile_str(reply,o->buffer[o->buffer_rpt],0);
   Sregex_string(&(o->buffer[o->buffer_rpt]),NULL,0);
   if(ret<=0)
     return(-1);
   (o->buffer_rpt)++;
   if(!(flag&2))
     o->count++;
   return(1);
 }
 do {
   entry= readdir(o->dirpt);
   if(entry==NULL) {
     /* >>> how to distinguish error from EOF , do i need a (FILE *) ? */
     return(0);
   }
   if(strlen(entry->d_name)>4095) {
     fprintf(stderr,"--- oversized directory entry (number %d) :\n    %s",
                    o->count+1,entry->d_name);
     return(-1);
   }
   name= entry->d_name;
   if(flag&8)
 break;
   /* skip "." and ".." */
 } while(name[0]=='.' && ((name[1]=='.' && name[2]==0) || name[1]==0));
 if(Sfile_str(reply,name,0)<=0)
   return(-1);
 if(!(flag&2))
   o->count++;
 return(1);
}


int Dirseq_next_adrblock(struct DirseQ *o, char *replies[], int *reply_count,
                         int max_replies, int flag)
/* @param replies A vector of Sregex_string pointers */
/*
flag:
 bit0= permission to use buffer
 bit1= do not increment counter
 bit2= ignore buffer in any case
 bit4= sort replies
return:
 <0 error
 0= no more entries available
 1= ok, reply is valid
*/
{
 int i,ret;
 char reply[SfileadrL];

 *reply_count= 0;
 for(i=0;i<max_replies;i++) {
   ret= Dirseq_next_adr(o,reply,flag&(1|2|4));
   if(ret<0)
     return(ret);
   if(ret==0)
 break;
   if(Sregex_string(&(replies[i]),reply,0)<=0)
     return(-1);
   (*reply_count)++;
 }
 if((*reply_count)==0)
   return(0);
 if(flag&16) 
   Sort_argv(*reply_count,replies,0);
 return(1);
}


#endif /* ! Xorriso_dirseq_externaL */


/* ------------------------------- Xorriso -------------------------------- */

/** The list of startup file names */
#define Xorriso_rc_nuM 4

static char Xorriso_sys_rc_nameS[Xorriso_rc_nuM][80]= {
 "/etc/default/xorriso",
 "/etc/opt/xorriso/rc",
 "/etc/xorriso/xorriso.conf",
 "placeholder for $HOME/.xorrisorc"
};


int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
{
 int i;
 struct XorrisO *m;
 
 *xorriso= m= TSOB_FELD(struct XorrisO,1);
 if(m==NULL)
   return(-1);
 m->libs_are_started= 0;
 strncpy(m->progname,progname,sizeof(m->progname)-1);
 m->progname[sizeof(m->progname)-1]= 0;
 if(getcwd(m->initial_wdx,sizeof(m->initial_wdx)-1)==NULL)
   m->initial_wdx[0]= 0;
 m->no_rc= 0;

 m->rc_filename_count= Xorriso_rc_nuM;
 for(i=0;i<m->rc_filename_count-1;i++)
   strcpy(m->rc_filenames[i],Xorriso_sys_rc_nameS[i]);
 m->rc_filenames[m->rc_filename_count-1][0]= 0;

 m->wdi[0]= 0;
 strcpy(m->wdx, m->initial_wdx);
 m->did_something_useful= 0;
 m->do_joliet= 0;
 m->do_follow_links= 0;
 m->do_global_uid= 0;
 m->global_uid= 0;
 m->volid[0]= 0;
 m->do_global_gid= 0;
 m->do_overwrite= 1;
 m->do_reassure= 0;
 m->global_gid= 0;
 m->indev[0]= 0;
 m->in_drive_handle= NULL;
 m->in_volset_handle= NULL;
 m->volset_change_pending= 0;
 m->outdev[0]= 0;
 m->out_drive_handle= NULL;
 m->ban_stdio_write= 0;
 m->do_dummy= 0;
 m->do_close= 0;
 m->speed= 0;
 m->fs= 4*512; /* 4 MiB */
 m->allow_graft_points= 0;
 m->dialog= 0;
 m->search_mode= 0;
 m->structured_search= 1;
 m->temp_mem_limit= 16*1024*1024;
 m->use_stdin= 0;
 m->result_page_length= 0;
 m->result_page_width= 80;
 m->mark_text[0]= 0;
 m->packet_output= 0;
 for(i=0; i<4; i++)
   m->logfile[i][0]= 0;
 m->status_history_max= Xorriso_status_history_maX;
 strcpy(m->report_about_text, "ALL");
 Xorriso__text_to_sev(m->report_about_text, &m->report_about_severity, 0);
 m->library_msg_direct_print= 0;
 strcpy(m->abort_on_text,"FATAL");
 Xorriso__text_to_sev(m->abort_on_text, &m->abort_on_severity, 0);
 m->problem_status= 0;
 m->problem_status_text[0]= 0;
#ifdef Xorriso_with_regeX
 m->re= NULL;
 /* >>> ??? how to initialize m->match[0] ? */
#endif /* Xorriso_with_regeX */
 m->re_constants= NULL;
 m->re_count= 0;
 m->re_fill= 0;
 m->reg_expr[0]= 0;
 m->is_dialog= 0;
 m->bar_is_fresh= 0;
 m->pending_option[0]= 0;
 m->request_to_abort= 0;
 m->idle_time= 0.0;
 m->re_failed_at= -1;
 m->prepended_wd= 0;
 m->insert_count= 0;
 m->insert_bytes= 0;
 m->error_count= 0;
 m->result_line[0]= 0;
 m->result_line_counter= 0;
 m->result_page_counter= 0;
 m->result_open_line_len= 0;
 m->info_text[0]= 0;

 return(1);
}


int Xorriso_destroy_re(struct XorrisO *m, int flag)
{
 int i;

#ifdef Xorriso_with_regeX
 if(m->re!=NULL) {
   for(i=0;i<m->re_fill;i++) {
     if(m->re_constants!=NULL)
       if(m->re_constants[i]!=NULL)
   continue; /* ,->re[i] was never subject to regcomp() */
     regfree(&(m->re[i]));
   }
   free((char *) m->re);
   m->re= NULL;
 }
#endif /* Xorriso_with_regeX */

 if(m->re_constants!=NULL) {
   for(i=0;i<m->re_fill;i++)
     if(m->re_constants[i]!=NULL)
       free(m->re_constants[i]);
   free((char *) m->re_constants);
   m->re_constants= NULL;
 }
 m->re_count= 0;
 m->re_fill= 0;
 return(1);
}


int Xorriso_destroy(struct XorrisO **xorriso, int flag)
{
 struct XorrisO *m;

 m= *xorriso;
 if(m==NULL)
   return(0);
 Xorriso_destroy_re(m,0);

 free((char *) m);
 *xorriso= NULL;
 return(1);
}


int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
                         int flag)
/*
 bit0= do not write to history
 bit1= do not read input (but eventually write to history)
 bit2= do not write to history line which begin with "-history:" or "-history "
*/
{
 char *cpt= NULL;
 int ret;
#ifdef Xorriso_with_readlinE
 int l;
 static char last_input[SfileadrL]= {""};
#endif /* ! Xorriso_with_readlinE */
 double tdiff;
 struct timeval tv;
 struct timezone tz;

 gettimeofday(&tv,&tz);
 tdiff= tv.tv_sec+(1.e-6*(double) tv.tv_usec);

 fflush(stdout);

#ifdef Xorriso_with_readlinE

 if(xorriso->use_stdin) {
   if(flag&2)
     {ret= 1; goto ex;}
   if(Sfile_fgets(line,linesize-1,stdin)==NULL) {
     /* need a very dramatic end */
     kill(getpid(),SIGHUP);
     {ret= -1; goto ex;}
   }
   {ret= 1; goto ex;}
 }
 if(flag&2) {
   cpt= NULL;
 } else {
   cpt= readline("");
   if(cpt==NULL) {
     /* need a very dramatic end */
     kill(getpid(),SIGHUP);
     {ret= -1; goto ex;}
   }
   l= strlen(cpt);
   if(l>=linesize) {
     strncpy(line,cpt,linesize-1);
     line[sizeof(line)-1]= 0;
   } else 
     strcpy(line,cpt);
 }
 if(line[0]!=0 && strcmp(last_input,line)!=0 && !(flag&1))
   if(!((flag&4) && 
      (strncmp(line,"-history:",9)==0 || strncmp(line,"-history ",9)==0))) {
     add_history(line);
     strncpy(last_input,line,sizeof(last_input)-1);
     last_input[sizeof(last_input)-1]= 0;
   }

#else /*  Xorriso_with_readlinE */

 if(flag&2)
   {ret= 1; goto ex;}
 if(Sfile_fgets(line,linesize-1,stdin)==NULL) {
   /* need a very dramatic end */
   kill(getpid(),SIGHUP);
   {ret= -1; goto ex;}
 }

#endif /* ! Xorriso_with_readlinE */

 ret= 1;
ex:;
 if(cpt!=NULL)
   free(cpt);
 gettimeofday(&tv,&tz);
 xorriso->idle_time+= tv.tv_sec+(1.e-6*(double) tv.tv_usec)-tdiff;
 return(ret);
}


int Xorriso_request_confirmation(struct XorrisO *xorriso, int flag)
/*
 bit0= important operation going on: 
       demand confirmation of abort, only abort on @@@
 bit1= mark '@' and '@@' by return 4
 bit2= accept: i=ignore , r=retry , x=abort
 bit3= @@@ = 'done reading' rather than 'abort'
*/
/* return: <=0 error , 1=go on , 2=abort , 3=redo request, 4=see flag bit1
                       (5=skip volume) , 6=retry failed operation
 */
{
 int ret;
 char line[SfileadrL],*cpt,previous_line[SfileadrL];
 char *abort_req_text,*abort_really_text;

 if(flag&8) {
   abort_req_text= "request to end";
   abort_really_text= "done reading";
 } else {
   abort_req_text= "request to abort";
   abort_really_text= "abort";
 }
 ret= Xorriso_dialog_input(xorriso,line,sizeof(line),1);
 xorriso->result_line_counter= 0;
 xorriso->result_page_counter++;
 if(ret<=0)
   if(xorriso->result_page_length>0)
     xorriso->result_page_length= -xorriso->result_page_length;

 cpt= line;
 if(*cpt=='@') {
   if(strcmp(cpt,"@@@")==0) {
request_to_abort:;
     if(flag&1) {
       strcpy(previous_line,cpt);
       sprintf(xorriso->info_text,
               "....... [%s = %s registered. Really %s ? (y/n) ] .......\n",
               cpt,abort_req_text,abort_really_text);
       Xorriso_info(xorriso,0);
       ret= Xorriso_dialog_input(xorriso,line,sizeof(line),1);
       if(ret<=0)
         return(ret);
       cpt= line;
       if(strcmp(cpt,previous_line)==0 || 
          ((*cpt=='Y' || *cpt=='y' || *cpt=='j' || *cpt=='J' || *cpt=='1') &&
             *(cpt+1)==0)) {
         xorriso->request_to_abort= 1;
         sprintf(xorriso->info_text,
                 "------- ( %s confirmed )\n",abort_req_text);
         Xorriso_info(xorriso,0);
         return(2);
       }
       sprintf(xorriso->info_text,
               "....... ( %s revoked )\n",abort_req_text);
       Xorriso_info(xorriso,0);
       return(3);
     }
     xorriso->request_to_abort= 1;
     sprintf(xorriso->info_text,
"----------- [%s = request to abort registered. Operation ends ] ------------\n",
               cpt);
     Xorriso_info(xorriso,0);
     return(2);
   } else if(strcmp(cpt,"@@")==0) {
     goto klammer_affe;
     
   } else if(strcmp(cpt,"@")==0) {
klammer_affe:;
     if(xorriso->result_page_length>0)
       xorriso->result_page_length= -xorriso->result_page_length;
     if(flag&1) {
       sprintf(xorriso->info_text,
"... [@ = page prompt suppression registered. -page disabled temporarily ] ...\n");
       Xorriso_info(xorriso,0);
     }

   } else {
     Xorriso_dialog_input(xorriso,cpt,strlen(line)+1,2); /* write to history */
     sprintf(xorriso->info_text,
 "--- Unrecognized input beginning with @. Please enter someting else.\n");
     Xorriso_info(xorriso,0);
     return(3);
   }
   if(flag&2)
     return(4);
   if(flag&1)
     return(3);
   return(1);
 } else if(flag&4) {

   if(strcmp(cpt,"i")==0 || strcmp(cpt,"I")==0 || *cpt==0) { 
     return(1);
   } else if(strcmp(cpt,"r")==0 || strcmp(cpt,"R")==0) {
     return(6);
   } else if(strcmp(cpt,"x")==0 || strcmp(cpt,"X")==0) {
     goto request_to_abort;
   } else {
     /* >>> unknown input */
     sprintf(xorriso->info_text,
             "--- Please enter one of : empty line, i, r, x, @, @@, @@@\n");
     Xorriso_info(xorriso,0);
     return(3);
   }

 } else if(*cpt!=0 && !(flag&1)) {
   Xorriso_dialog_input(xorriso,cpt,strlen(line)+1,2); /* write to history */
   strcpy(xorriso->pending_option,cpt);
   xorriso->request_to_abort= 1;
   sprintf(xorriso->info_text,
"-------------- [ Input of option registered. Operation ends ] ---------------\n");
   Xorriso_info(xorriso,0);
   return(2);

 } else if(*cpt!=0) {
   Xorriso_dialog_input(xorriso,cpt,strlen(line)+1,2); /* write to history */
   sprintf(xorriso->info_text,
           "--- Please enter one of : empty line, @, @@, @@@\n");
   Xorriso_info(xorriso,0);
   return(3);
 }
 return(1);
}


int Xorriso_predict_linecount(struct XorrisO *xorriso, char *line,
                              int *linecount, int flag)
{
 int width,l;
 char *spt,*ept;

 *linecount= 0;
 spt= line;
 width= xorriso->result_page_width;
 while(1) {
   ept= strchr(spt,'\n');
   if(ept==NULL)
     l= strlen(spt);
   else
     l= ept-spt;
   l+= xorriso->result_open_line_len;
   if(ept!=NULL && l==0)
     (*linecount)++;
   else {
     (*linecount)+= l/width;
     if(ept==NULL) {
       xorriso->result_open_line_len= l%width;
 break;
     }
     (*linecount)+= !!(l%width);
   }
   xorriso->result_open_line_len= 0;
   spt= ept+1;
 }
 return(1);
}


int Xorriso_pager(struct XorrisO *xorriso, char *line, int flag)
/*
 bit1= mark '@' by return 4
*/
/* return: <=0 error , 1=go on , 2=abort , 4=see flag bit1*/
{
 int ret,linecount;
 char info_text[10*SfileadrL];

 if(xorriso->result_page_length<=0)
   return(1);
 Xorriso_predict_linecount(xorriso,line,&linecount,0);
 if(xorriso->result_line_counter+linecount>xorriso->result_page_length) {
ask_for_page:;
   strcpy(info_text,xorriso->info_text);
   sprintf(xorriso->info_text,"\n");
   Xorriso_info(xorriso,0);
   sprintf(xorriso->info_text,
".... [Press Enter to continue. @,Enter avoids further stops. @@@ aborts] ....\n");
   Xorriso_info(xorriso,0);
   ret= Xorriso_request_confirmation(xorriso,flag&2);
   strcpy(xorriso->info_text,info_text);
   if(ret<=0)
     return(ret);
   if(ret==2)
     return(2);
   if(ret==3)
     goto ask_for_page;
 }
 xorriso->result_line_counter+= linecount;
 return(1);
}


int Xorriso_result(struct XorrisO *xorriso, int flag)
/*
 bit0= no considerations or computations or dialog. Just put out.
*/
{
 int ret;

 if(flag&1)
   goto put_it_out;
 if(xorriso->request_to_abort)
   return(1);
 if(xorriso->result_page_length>0) {
   ret= Xorriso_pager(xorriso,xorriso->result_line,2);
   if(ret<=0)
     return(ret);
   if(ret==2)
     return(1);
   if(xorriso->request_to_abort)
     return(1);
 }
put_it_out:;
 xorriso->bar_is_fresh= 0;
 ret= Write_to_channel(xorriso->result_line,1,!xorriso->packet_output);
 return(ret);
}


int Xorriso_info(struct XorrisO *xorriso, int flag)
/*
 bit0= use pager (as with result)
 bit1= permission to suppress output
*/
{
 int ret;
 static int note_sev= 0;

 if(flag&2)
   if(xorriso->request_to_abort)
     return(1);

 if(note_sev==0)
   Xorriso__text_to_sev("NOTE", &note_sev, 0);
 if(note_sev<xorriso->report_about_severity &&
    note_sev<xorriso->abort_on_severity)
   return(1);

 if(flag&1) {
   ret= Xorriso_pager(xorriso,xorriso->info_text,2);
   if(ret<=0)
     return(ret);
   if(ret==2)
     return(1);
   if(flag&2)
     if(xorriso->request_to_abort)
       return(1);
 }
 xorriso->bar_is_fresh= 0;
 ret= Write_to_channel(xorriso->info_text,2,!xorriso->packet_output);
 return(ret);
}


int Xorriso_mark(struct XorrisO *xorriso, int flag)
{
 int ret= 1,r_ret,i_ret;

 if(xorriso->mark_text[0]==0)
   return(1);
 if(xorriso->packet_output) 
   ret= Write_to_channel(xorriso->mark_text,3,0);
 else {
   sprintf(xorriso->result_line,"%s\n",xorriso->mark_text);
   r_ret= Xorriso_result(xorriso,1);
   strcpy(xorriso->info_text,xorriso->result_line);
   i_ret= Xorriso_info(xorriso,0);
   if(r_ret==0 || i_ret==0)
     ret= 0;
 }
 return(ret);
}


int Xorriso_restxt(struct XorrisO *xorriso, char *text)
{
 int ret;

 strncpy(xorriso->result_line,text,sizeof(xorriso->result_line)-1);
 xorriso->result_line[sizeof(xorriso->result_line)-1]= 0;
 ret= Xorriso_result(xorriso,0);
 return(ret);
}


int Xorriso_reset_counters(struct XorrisO *xorriso, int flag)
/*
 bit0= reset xorriso->found to -1
*/
{
 xorriso->error_count= 0;
 xorriso->insert_count= 0;
 xorriso->insert_bytes= 0;
 return(1);
}


int Xorriso__bourne_to_reg(char bourne_expr[], char reg_expr[], int flag)
/* reg_expr should be twice as large as bourne_expr ( + 2 to be exact) */
/* return: 2= bourne_expr is surely a constant */
{
 char *wpt,*lpt;
 int backslash= 0,is_constant= 1,in_square_brackets= 0;
 int first_in_square_brackets=0;

 wpt= reg_expr;
 lpt= bourne_expr;

 *(wpt++)= '^';

 while(*lpt!=0){
  if(first_in_square_brackets>0)
    first_in_square_brackets--;
  if(!backslash){
    switch(*lpt){
    case '?':
      *(wpt++)= '.';
      is_constant= 0;
    break;case '*':
      *(wpt++)= '.';
      *(wpt++)= '*';
      is_constant= 0;
    break;case '.':
      *(wpt++)= '\\';
      *(wpt++)= '.';
    break;case '+':
      *(wpt++)= '\\';
      *(wpt++)= '+';
    break;case '[':
      *(wpt++)= *lpt;
      first_in_square_brackets= 2;
      in_square_brackets= 1;
      is_constant= 0;
    break;case ']':
      *(wpt++)= *lpt;
      in_square_brackets= 0;
    break;case '!':
      if(first_in_square_brackets)
        *(wpt++)= '^';
      else if(in_square_brackets)
        *(wpt++)= '!';
      else {
        *(wpt++)= '\\';
        *(wpt++)= '!';
      }
    break;case '^':
      if(in_square_brackets)
        *(wpt++)= '^';
      else
        *(wpt++)= '\\';
        *(wpt++)= '^';
    break;case '$':
      *(wpt++)= '\\';
      *(wpt++)= '$';
    break;case '\\':
      backslash= 1;
      *(wpt++)= '\\';
      is_constant= 0;
    break;default:
      *(wpt++)= *lpt;
    }
  } else {
    backslash= 0;
    *(wpt++)= *lpt;
  }
  lpt++;
 }
 *(wpt++)= '$';
 *wpt= 0;
 return(1+(is_constant>0));
}


/* @param flag bit0= do not augment relative structured search by xorriso->wdi
               bit1= return 2 if bonked at root
                     (caller then aborts or retries without bit0)
   @return <=0 error, 1= ok , 2
*/
int Xorriso_prepare_regex(struct XorrisO *xorriso, char *adr, int flag)
{
 int l,ret,i,count,bonked= 0,is_constant;
 char *cpt,*npt,adr_part[2*SfileadrL],absolute_adr[2*SfileadrL],*adr_start;

#ifndef Xorriso_with_regeX

 if(xorriso->search_mode==2 || 
    (xorriso->search_mode==3 && xorriso->structured_search==0)) {
no_regex_available:;
   sprintf(xorriso->info_text,"%s : regular expressions not implemented",
           xorriso->progname);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
   
#endif /* ! Xorriso_with_regeX */

 if(xorriso->search_mode>=2 && xorriso->search_mode<=4) {
   if(xorriso->search_mode==3 || xorriso->search_mode==4) {
     l= strlen(adr)+strlen(xorriso->wdi)+1;
     if(l*2+2>sizeof(xorriso->reg_expr) || l*2+2>sizeof(adr_part)) {
       sprintf(xorriso->info_text,"Search pattern too long");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
       return(0);
     }
   }
   Xorriso_destroy_re(xorriso,0);
   if(xorriso->structured_search && xorriso->search_mode==3) {
     if(adr[0]!='/' && !(flag&1)) {
       /* relative expression : prepend working directory */
       sprintf(absolute_adr,"%s/%s",xorriso->wdi,adr);
       adr_start= absolute_adr;
       xorriso->prepended_wd= 1;
     } else
       adr_start= adr;
     /* count slashes */;
     cpt= adr_start;
     while(*cpt=='/')
       cpt++;
     for(i= 0;1;i++) {
       cpt= strchr(cpt,'/');
       if(cpt==NULL)
     break;
       while(*cpt=='/')
         cpt++;
     }
     count= i+1;

#ifdef Xorriso_with_regeX
     xorriso->re= TSOB_FELD(regex_t,count);
     if(xorriso->re==NULL)
       return(-1);
#endif /* Xorriso_with_regeX */

     xorriso->re_constants= TSOB_FELD(char *,count);
     if(xorriso->re_constants==NULL)
       return(-1);
     for(i= 0;i<count;i++)
       xorriso->re_constants[i]= NULL;
     xorriso->re_count= count;
     xorriso->re_fill= 0;
       
     /* loop over slash chunks*/;
     cpt= adr_start;
     xorriso->re_fill= 0;
     while(*cpt=='/')
       cpt++;
     for(i= 0;i<count;i++) {
       npt= strchr(cpt,'/');
       if(npt==NULL) {
         if(strlen(cpt)>=sizeof(adr_part))
           return(-1);
         strcpy(adr_part,cpt);
       } else {
         if(npt-cpt>=sizeof(adr_part))
           return(-1);
         strncpy(adr_part,cpt,npt-cpt);
         adr_part[npt-cpt]= 0;
       }

       if(adr_part[0]==0)
         goto next_adr_part;
       if(adr_part[0]=='.' && adr_part[1]==0)
         goto next_adr_part;
       if(adr_part[0]=='.' && adr_part[1]=='.' && adr_part[2]==0) {
         /* delete previous part */
         if(xorriso->re_fill<=0) {
           bonked= 1;
           goto next_adr_part;
         } 
         if(xorriso->re_constants[xorriso->re_fill-1]!=NULL) {
           free(xorriso->re_constants[xorriso->re_fill-1]);
           xorriso->re_constants[xorriso->re_fill-1]= NULL;
         } else
#ifdef Xorriso_with_regeX
           regfree(&(xorriso->re[xorriso->re_fill-1]));
#else /* Xorriso_with_regeX */
           ;
#endif /* ! Xorriso_with_regeX */
         (xorriso->re_fill)--;
         goto next_adr_part;
       }
       if(strcmp(adr_part,"*")==0) {
         adr_part[0]= 0;
         ret= 2;
       } else
         ret= Xorriso__bourne_to_reg(adr_part,xorriso->reg_expr,0);
       if(ret==2) {
         if(Sregex_string(&(xorriso->re_constants[xorriso->re_fill]),adr_part,0)
            <=0)
           return(-1);
       } else {

#ifdef Xorriso_with_regeX
         if(regcomp(&(xorriso->re[xorriso->re_fill]),xorriso->reg_expr,0)!=0)
           goto cannot_compile;
#else /* Xorriso_with_regeX */
         if(!warned_of_regex) {
           sprintf(xorriso->info_text,
                   "No wildcards get recognized besides single '*'");
           Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING",0);
           warned_of_regex= 1;
         }
         if(Sregex_string(&(xorriso->re_constants[xorriso->re_fill]),adr_part,0)
            <=0)
           return(-1);
#endif /* ! Xorriso_with_regeX */

       }
       xorriso->re_fill++;
next_adr_part:;
       if(i==count-1)
     break;
       cpt= npt+1;
       while(*cpt=='/')
         cpt++;
     }
     if(bonked) {
       if(flag&2)
         return(2);
       sprintf(xorriso->info_text, "Your '..' bonked at the root directory.");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING",0);
     }

     Xorriso__bourne_to_reg(adr_start,xorriso->reg_expr,0); /* just for show */

   } else { 
     is_constant= 0;
     if(strcmp(adr,"*")==0 || adr[0]==0) {
       is_constant= 1;
     } else if(xorriso->search_mode==3 || xorriso->search_mode==4) {
       ret= Xorriso__bourne_to_reg(adr,xorriso->reg_expr,0);
       is_constant= (ret==2);
     } else {
       if(strlen(adr)>=sizeof(xorriso->reg_expr))
         return(-1);
       strcpy(xorriso->reg_expr,adr);
     }
     xorriso->re_count= 0; /* tells matcher that this is not structured */
     xorriso->re_constants= TSOB_FELD(char *,1);
     if(xorriso->re_constants==NULL)
       return(-1);
     xorriso->re_constants[0]= NULL;
     if(is_constant) {
       if(strcmp(adr,"*")==0) {
         if(Sregex_string(&(xorriso->re_constants[0]),"",0)<=0)
           return(-1);
       } else {
         if(Sregex_string(&(xorriso->re_constants[0]),adr,0)<=0)
           return(-1);
       }
       xorriso->re_fill= 1;
     } else { 
#ifdef Xorriso_with_regeX
       xorriso->re= TSOB_FELD(regex_t,1);
       if(xorriso->re==NULL)
         return(-1);
       if(regcomp(&(xorriso->re[0]),xorriso->reg_expr,0)!=0) {
cannot_compile:;
         sprintf(xorriso->info_text, "Cannot compile regular expression : %s",
                 xorriso->reg_expr);
         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY",0);
         return(0);
       }
#else /* Xorriso_with_regeX */
       sprintf(xorriso->info_text,
              "No wildcards get recognized besides single '*'");
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING",0);
       Xorriso_info(xorriso,0);
       if(Sregex_string(&(xorriso->re_constants[0]),adr,0)<=0)
         return(-1);
       xorriso->re_fill= 1;
#endif /* ! Xorriso_with_regeX */
     }

   }
 }
 return(1);
}


int Xorriso_regexec(struct XorrisO *xorriso, char *to_match, int *failed_at,
                    int flag)
/*
 bit0= do not shortcut last component of to_match
 bit2= retry beginning at failed last component 
*/
{
 int ret,i,re_start= 0,reg_nomatch= -1;
 char *cpt,*npt,adr_part[SfileadrL],*mpt;

#ifdef Xorriso_with_regeX
 reg_nomatch= REG_NOMATCH;
#endif /* Xorriso_with_regeX */

 *failed_at= 0;
 if(!(xorriso->structured_search && xorriso->re_count>0)) {
   if(xorriso->re_constants!=NULL)
     if(xorriso->re_constants[0]!=NULL) {
       if(xorriso->re_constants[0][0]==0)
         return(0);
       if(strcmp(xorriso->re_constants[0],to_match)!=0)
         return(reg_nomatch);
       return(0);
     }  
#ifdef Xorriso_with_regeX
   ret= regexec(&(xorriso->re[0]),to_match,1,xorriso->match,0);
#else
   ret= reg_nomatch;
#endif /* ! Xorriso_with_regeX */

   return(ret);
 }

 cpt= to_match;
 while(*cpt=='/')
  cpt++;
 if(flag&4)
   re_start= xorriso->re_failed_at;
 if(re_start<0)
   re_start= 0;
 for(i= re_start;i<xorriso->re_fill;i++) {
   *failed_at= i;
   npt= strchr(cpt,'/');
   if(npt==NULL) {
     if(i<xorriso->re_fill-1 && !(flag&1)) 
       return(reg_nomatch); /* this must be the last expression part */
     mpt= cpt;
   } else {
     strncpy(adr_part,cpt,npt-cpt);
     adr_part[npt-cpt]= 0;
     mpt= adr_part;
   }
   if(xorriso->re_constants[i]!=NULL) {
     if(xorriso->re_constants[i][0]!=0) /* empty constant matches anything */
       if(strcmp(xorriso->re_constants[i],mpt)!=0)
         return(reg_nomatch);
   } else {

#ifdef Xorriso_with_regeX
     ret= regexec(&(xorriso->re[i]),mpt,1,xorriso->match,0);
     if(ret!=0)
       return(ret);
#else
     return(reg_nomatch);
#endif /* ! Xorriso_with_regeX */

   }
   if(npt==NULL) {
     if(i>=xorriso->re_fill-1)
       return(0); /* MATCH */
     *failed_at= i+1;
     return(reg_nomatch);
   }
   cpt= npt+1;
   while(*cpt=='/')
     cpt++; 
 }
 *failed_at= xorriso->re_fill;
 return(reg_nomatch);
}


int Xorriso_match_file(struct XorrisO *xorriso, char *to_match, char *adr,
                       int flag)
/*
 bit0= match under fsm rules: with search_mode 0 : do not accept partial match
 bit1= with xorriso->search_mode==4 : do not check for '/'
 bit2= single level bit for Xorriso_regexec()
*/
/* return:
  <0 error
   0 no match
   1 match
   2 match with request to break volume loop
*/
{
 int ret,l,failed_at;
 char *cpt;

 l= strlen(to_match);
 if(xorriso->search_mode==0) {
   if(flag&1) {
     if(strcmp(adr,to_match)==0)
       return(2);
   } else {
     if(strncmp(adr,to_match,l)==0)
       if(adr[l]=='/'||adr[l]==0)
         return(2);
   }
   l= strlen(adr);
   if(strncmp(to_match,adr,l)==0)
     if(to_match[l]=='/'||to_match[l]==0) {
       return(1);
     }
 } else if(xorriso->search_mode==1) {
   if(strstr(to_match,adr)!=NULL)
     return(1);
 } else if(xorriso->search_mode>=2 && xorriso->search_mode<=4) {
   if(xorriso->search_mode==4 && !(flag&2)) {
     cpt= strrchr(to_match,'/');
     if(cpt==NULL)
       cpt= to_match;
     else
       cpt++;
   } else
     cpt= to_match;
   ret= Xorriso_regexec(xorriso,cpt,&failed_at,1|(flag&4));
   if(ret==0)
     return(1);
   xorriso->re_failed_at= failed_at;
 }
 return(0);
}


int Xorriso_status_result(struct XorrisO *xorriso, char *filter, FILE *fp,
                          int flag)
/* 
bit1= do only report to fp
*/
{
 int ret,l;

 if(filter!=NULL)
   if(filter[0]=='-') {
     l= strlen(filter);
     if(strncmp(filter,xorriso->result_line,l)!=0)
       return(2);
   }
 if(!(flag&2))
   Xorriso_result(xorriso,0);
 if(fp!=NULL) {
   ret= fwrite(xorriso->result_line,strlen(xorriso->result_line),1,fp);
   if(ret<=0)
     return(ret);
 }   
 return(1);
}


int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
/*
 bit0= do only report non-default settings
 bit1= do only report to fp
 bit2= report current -resume status even if bit0 is set, but only if valid
 bit3= report readline history
 bit4= report -resume options indirectly as 
              -options_from_file:${resume_state_file}_pos
*/
{
 int is_default,no_defaults,i;
 char *line, sfe[4*SfileadrL];
 static char channel_prefixes[4][4]= {".","R","I","M"};

 no_defaults= flag&1;
 line= xorriso->result_line;

 if(xorriso->no_rc) {
   sprintf(line,"-no_rc\n");
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }
 is_default= 0;
 if(xorriso->dialog)
   sprintf(line,"-dialog on\n");
 else {
   sprintf(line,"-dialog off\n");
   is_default= 1;
 }
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= (xorriso->result_page_length==0 && xorriso->result_page_width==80);
 sprintf(line,"-page %d %d\n",
              (xorriso->result_page_length>=0?xorriso->result_page_length
                                           :-xorriso->result_page_length),
              xorriso->result_page_width);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= 0;
 if(xorriso->use_stdin)
   sprintf(line,"-use_stdin\n");
 else {
   sprintf(line,"-use_readline\n");
   is_default= 1;
 }
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= !xorriso->packet_output;
 sprintf(line,"-pkt_output %s\n",(xorriso->packet_output?"on":"off"));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 for(i=0;i<4;i++) {
   is_default= (xorriso->logfile[i]!=0);
   sprintf(line,"-logfile %s %s\n",
           channel_prefixes[i],Text_shellsafe(xorriso->logfile[i],sfe,0));
   if(!(is_default && no_defaults))
     Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 is_default= (xorriso->mark_text[0]==0);
 sprintf(line,"-mark %s\n",Text_shellsafe(xorriso->mark_text,sfe,0));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= (xorriso->temp_mem_limit==16*1024*1024);
 if((xorriso->temp_mem_limit/1024/1024)*1024*1024==xorriso->temp_mem_limit)
   sprintf(line,"-temp_mem_limit %dm\n", xorriso->temp_mem_limit/1024/1024);
 else
   sprintf(line,"-fs %dk\n", xorriso->temp_mem_limit/1024);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);


 sprintf(line,"-prog %s\n",Text_shellsafe(xorriso->progname,sfe,0));
 Xorriso_status_result(xorriso,filter,fp,flag&2);

 sprintf(line,"-cd %s\n",
         (xorriso->wdi[0] ? Text_shellsafe(xorriso->wdi,sfe,0) : "'/'"));
 Xorriso_status_result(xorriso,filter,fp,flag&2);
 sprintf(line,"-cdx %s\n",
         (xorriso->wdx[0] ? Text_shellsafe(xorriso->wdx,sfe,0) : "'/'"));
 Xorriso_status_result(xorriso,filter,fp,flag&2);

 if(xorriso->ban_stdio_write) {
   sprintf(line,"-ban_stdio_write\n");
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 is_default= (xorriso->volid[0]==0);
 sprintf(line,"-V %s\n",Text_shellsafe(xorriso->volid,sfe,0));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 if(xorriso->do_joliet) {
   sprintf(line,"-J\n");
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 if(xorriso->do_global_uid) {
   sprintf(line,"-uid %lu\n", (unsigned long) xorriso->global_uid);
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 if(xorriso->do_global_gid) {
   sprintf(line,"-gid %lu\n", (unsigned long) xorriso->global_gid);
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 if(xorriso->allow_graft_points) {
   sprintf(line,"-graft-points\n");
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 if(xorriso->do_follow_links) {
   sprintf(line,"-f\n");
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 is_default= !!xorriso->do_overwrite;
 sprintf(line,"-overwrite %s\n",(xorriso->do_overwrite ? "on" : "off"));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= !xorriso->do_reassure;
 sprintf(line,"-reassure %s\n",(xorriso->do_reassure ? "on" : "off"));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= !xorriso->do_close;
 sprintf(line,"-close %s\n",(xorriso->do_close ? "on" : "off"));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= !xorriso->do_dummy;
 sprintf(line,"-dummy %s\n",(xorriso->do_dummy ? "on" : "off"));
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= (xorriso->speed==0);
 sprintf(line,"-speed %dkB/s\n", xorriso->speed);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= (xorriso->fs==4*512);
 if((xorriso->fs/512)*512==xorriso->fs)
   sprintf(line,"-fs %dm\n", xorriso->fs/512);
 else
   sprintf(line,"-fs %dk\n", xorriso->fs*2);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);

 is_default= (strcmp(xorriso->report_about_text,"ALL")==0);
 sprintf(line,"-report_about %s\n",xorriso->report_about_text);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 
 is_default= (strcmp(xorriso->abort_on_text,"FATAL")==0);
 sprintf(line,"-abort_on %s\n",xorriso->abort_on_text);
 if(!(is_default && no_defaults))
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 
 if(xorriso->status_history_max!=Xorriso_status_history_maX || !no_defaults) {
   sprintf(line,"-status_history_max %d\n",xorriso->status_history_max);
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

#ifdef Xorriso_with_readlinE

 if((flag&8) && xorriso->status_history_max>0) {
   HIST_ENTRY **hl;
   int hc,i;

   hl= history_list();
   if(hl!=NULL) {
     for(hc= 0;hl[hc]!=NULL;hc++);
     if(hc>0)
       if(strcmp(hl[hc-1]->line,"-end")==0)
         hc--;
     if(hc>=xorriso->status_history_max)
       i= hc-xorriso->status_history_max;
     else
       i= 0;
     for(;i<hc;i++) {
       sprintf(line,"-history %s\n",Text_shellsafe(hl[i]->line,sfe,0));
       Xorriso_status_result(xorriso,filter,fp,flag&2);
     }   
   }
 }

#endif /* Xorriso_with_readlinE */

 if(strcmp(xorriso->indev,xorriso->outdev)==0) { 
   sprintf(line,"-dev %s\n", Text_shellsafe(xorriso->indev,sfe,0));
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 } else {
   sprintf(line,"-indev %s\n", Text_shellsafe(xorriso->indev,sfe,0));
   Xorriso_status_result(xorriso,filter,fp,flag&2);
   sprintf(line,"-outdev %s\n", Text_shellsafe(xorriso->outdev,sfe,0));
   Xorriso_status_result(xorriso,filter,fp,flag&2);
 }

 return(1);
}


int Xorriso_exec(struct XorrisO *xorriso, char *cmd, int flag)
{
 char *spt,*cpt,**argv= NULL,errmsg[2*SfileadrL];
 int is_done= 0,argc= 0,widx= 0,cmd_l,pass,ret;

 cmd_l= strlen(cmd);
 if(cmd_l>SfileadrL) {
   sprintf(xorriso->info_text,
           "Command for external process too long : %d (max %d)",
           cmd_l, SfileadrL);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
 }
 for(pass=0;pass<2;pass++) {
   is_done= 0;
   widx= 0;
   for(spt= cmd;!is_done;spt= cpt+1) {
     for(cpt= spt;*cpt!=0 && *cpt!=':' && *cpt!=' ';cpt++);
     if(*cpt==0)
       is_done= 1;
     if(pass==0) {
       argc++;
     } else {
       *cpt= 0;
       if(Sregex_string(&(argv[widx]),spt,0)<=0)
         {ret= -1; goto ex;}
       widx++;
     }
   }
   if(pass==0) {
     if(argc==0)
       {ret= 2; goto ex;}
     argv= TSOB_FELD(char *,argc+1);
     if(argv==NULL)
       {ret= -1; goto ex;}
     for(widx= 0;widx<argc+1;widx++)
       argv[widx]= NULL;
   }
 }
 ret= Exec_cmd(xorriso->progname,cmd,NULL,argv,errmsg,
               !!(xorriso->packet_output));
 if(ret<0)
   goto ex;
 if(ret>0) {
   for(widx=0; widx<cmd_l; widx++)
     if(cmd[widx]==0)
       cmd[widx]= ' ';
   sprintf(xorriso->info_text,"External process failed : %s",cmd);
   if(errmsg[0]!=0)
     sprintf(xorriso->info_text+strlen(xorriso->info_text),
             "message:  %s\n",errmsg);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 1);
   {ret= 0; goto ex;}
 }
 ret= 1;
ex:
 if(argv!=NULL) {
   for(widx=0;widx<argc;widx++)
     Sregex_string(&(argv[widx]),NULL,0);
   free((char *) argv);
 }
 return(ret);
} 


int Xorriso_warn_of_wildcards(struct XorrisO *xorriso, char *path, int flag)
{
 if(strchr(path,'*')!=NULL || strchr(path,'?')!=NULL) {
   sprintf(xorriso->info_text,
           "Xorriso does not support address wildcards '*' and '?'");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(1);
 }
 return(0);
}


/* @param flag bit0= do not warn of wirldcards
*/
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], "--")==0)
 break;
   if(!((flag&1) || warned))
     warned= Xorriso_warn_of_wildcards(xorriso, argv[i], 0);
 }
 return(i);
}


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= "FATAL";
 int sev, ret;

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


/* Note: It is ok to submit xorriso->info_text as msg_text here. */
/* flag: 
     bit0= for Xorriso_info() : use pager (as with result)
     bit1= for Xorriso_info() : permission to suppress output
     bit2..5= name prefix
       0="xorriso"
       1="libisofs"
       2="libburn"
       3="libisoburn"
       else: ""
*/
int Xorriso_msgs_submit(struct XorrisO *xorriso, 
                        int error_code, char msg_text[], int os_errno,
                        char severity[], int flag)
{
 int ret, lt, li, sev, i;
 char *sev_text= "FATAL", prefix[80];
 static char pfx_list[20][16]= {
                   "xorriso : ", "libisofs: ", "libburn : ", "libisoburn: ",
                    "", "", "", "", "", "", "", "", "", "", "", "" };

 /* Set problem status */
 ret= Xorriso__text_to_sev(severity, &sev, 0);
 if(ret<=0)
   Xorriso__text_to_sev(sev_text, &sev, 0);
 else
   sev_text= severity;
 if(xorriso->problem_status<sev) {
   xorriso->problem_status= sev;
   strcpy(xorriso->problem_status_text, sev_text);
 }

 /* Report problem event */
 if(sev<xorriso->report_about_severity && sev<xorriso->abort_on_severity)
   return(2);
 sprintf(prefix,"%s%s : ", pfx_list[(flag>>2)&15], sev_text);
 li= strlen(prefix);
 lt= strlen(msg_text);
 if(lt>sizeof(xorriso->info_text)-li-2)
   lt= sizeof(xorriso->info_text)-li-2;
 if(msg_text==xorriso->info_text) {
   for(i= lt; i>=0; i--)
     msg_text[i+li]= msg_text[i];
   for(i=0; i<li; i++)
     msg_text[i]= prefix[i];
 } else {
   strcpy(xorriso->info_text, prefix);
   strncpy(xorriso->info_text+li, msg_text, lt);
 }
 xorriso->info_text[li+lt]= '\n';
 xorriso->info_text[li+lt+1]= 0;
 Xorriso_info(xorriso,flag&3);
 if(os_errno>0) {
   sprintf(xorriso->info_text, "%ssys   : %s\n",
           pfx_list[(flag>>2)&15], strerror(os_errno));
   Xorriso_info(xorriso,flag&3);
 }
 return(1);   
}


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);

 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) {
     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 : ABORT : -abort_on '%s' encountered '%s'",
           xorriso->abort_on_text, xorriso->problem_status_text);
   Xorriso_info(xorriso, 0);/* submit not as problem event */
   ret= -1;
 } else if(ret>0)
   ret= 1;
 return(ret);
}


/* ---------------------------- Options API ------------------------ */


/* Option -abort_on */
int Xorriso_option_abort_on(struct XorrisO *xorriso, char *severity, int flag)
{
 int ret, sev;
 char sfe[4*SfileadrL];

 ret= Xorriso__text_to_sev(severity, &sev, 0);
 if(ret<=0) {
   sprintf(xorriso->info_text,
           "-abort_on: Not a known severity name : %s",
           Text_shellsafe(severity, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(ret);
 }
 if(Sfile_str(xorriso->abort_on_text,severity,0)<=0)
   return(-1);
 xorriso->abort_on_severity= sev;
 return(1);
}


/* Option -add */
/* @param flag bit0=do not report the added item */
int Xorriso_option_add(struct XorrisO *xorriso, int argc, char **argv,
                       int *idx, int flag)
{
 int i, end_idx, ret;
 char target[SfileadrL], source[SfileadrL], *ept, eff_path[SfileadrL];

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 for(i= *idx; i<end_idx; i++) {
   if(Sfile_str(target,argv[i],0)<=0)
     {ret= -1; goto ex;}
   strcpy(source, argv[i]);
   if(xorriso->allow_graft_points) {
     ret= Fileliste__target_source_limit(target, '=', &ept, 0);
     if(ret>0) {
       *ept= 0;
       strcpy(source, ept+1);
     }
   }
   if(target[0]!='/') {
     ret= Sfile_prepend_path(xorriso->wdi, target, 0);
     if(ret<=0)
       goto ex;
   }
   if(source[0]!='/') {
     ret= Sfile_prepend_path(xorriso->wdx, source, 0);
     if(ret<=0)
       goto ex;
   }

   ret= Xorriso_normalize_img_path(xorriso, target, eff_path, 2);
   if(ret<=0)
     return(ret);
   strcpy(target, eff_path);
   ret= Xorriso_normalize_img_path(xorriso, source, eff_path, 2|4);
   if(ret<=0)
     return(ret);
   strcpy(source, eff_path);

   ret= Xorriso_graft_in(xorriso, source, target, 0);
   if(ret<=0)
     goto ex;
   sprintf(xorriso->info_text, "Added to ISO image: %s '%s'='%s'\n",
           (ret>1 ? "directory" : "file"), target, source);
   if(!(flag&1))
     Xorriso_info(xorriso, 0);
 } 
 ret= 1;
ex:;
 (*idx)= end_idx;
 return(ret);
}


/* Option -alter_date */
int Xorriso_option_alter_date(struct XorrisO *xorriso,
                               char *time_type, char *timestring,
                               int argc, char **argv, int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> XORRISO : decode timestring %s\n", timestring);
 fprintf(stderr, ">>> LIBISOFS : -alter_date %s %s  ",
                 time_type, timestring);
 for(i= *idx; i<end_idx; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -ban_stdio_write */
int Xorriso_option_ban_stdio_write(struct XorrisO *xorriso, int flag)
{
 xorriso->ban_stdio_write= 1;
 return(1);
}


/* Option -blank and -format */
/* @param flag bit0= format rather than blank */
int Xorriso_option_blank(struct XorrisO *xorriso, char *mode, int flag)
{
 char drive_name[SfileadrL], *cmd= "-blank", sfe[4*SfileadrL];
 int ret, aq_flag= 2, mode_flag;

 if(flag&1)
   cmd= "-format";
 if(xorriso->out_drive_handle == NULL) {
   sprintf(xorriso->info_text,
           "%s: No output drive set by -dev -or -outdev", cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 if(xorriso->in_drive_handle == xorriso->out_drive_handle) {
   if(xorriso->volset_change_pending) {
     sprintf(xorriso->info_text,
             "%s: Image changes pending. -commit or -rollback first.", cmd);
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(0);
   }
   aq_flag= 3;
 }

 if(strcmp(mode, "all")==0 || strcmp(mode, "full")==0)
   mode_flag= 0;
 else if(strcmp(mode, "deformat")==0 || strcmp(mode, "deformat_sequential")==0)
   mode_flag= 2;
 else if(strcmp(mode, "deformat_quickest")==0 ||
         strcmp(mode, "deformat_sequential_quickest")==0)
   mode_flag= 3;
 else if(strcmp(mode, "fast")==0 || mode[0]==0)
   mode_flag= 1;
 else {
   sprintf(xorriso->info_text,
           "%s: Unknown %s mode '%s'",
           cmd, ((flag&1) ? "format" : "blank"), mode);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 if(flag&1)
   ret= Xorriso_format_media(xorriso, 0);
 else
   ret= Xorriso_blank_media(xorriso, mode_flag);
 if(ret==0)
   return(ret);
 strcpy(drive_name, xorriso->outdev);
 if(ret!=2) {
   Xorriso_give_up_drive(xorriso, aq_flag);
   if(ret<=0) {    /* this is the return value of the blank|format function */
     sprintf(xorriso->info_text,"Gave up -outdev %s",
             Text_shellsafe(xorriso->outdev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     return(ret);
   }
   sprintf(xorriso->info_text,"Re-aquiring -outdev %s",
           Text_shellsafe(drive_name, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   ret= Xorriso_aquire_drive(xorriso, drive_name, aq_flag); 
   if(ret<=0) {
     sprintf(xorriso->info_text,"Could not re-aquire -outdev %s",
             Text_shellsafe(xorriso->outdev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(ret);
   }
 }
 return(1);
}


/* Option -cd alias -cdi */
int Xorriso_option_cdi(struct XorrisO *xorriso, char *iso_rr_path, int flag)
{
 char sfe[4*SfileadrL], path[SfileadrL], eff_path[SfileadrL];
 int ret;

 if (strlen(iso_rr_path)>sizeof(xorriso->wdi)) {
   sprintf(xorriso->info_text,"-cdi: iso_rr_path too long (%d > %d)",
           strlen(iso_rr_path), sizeof(xorriso->wdi)-1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 Xorriso_warn_of_wildcards(xorriso, iso_rr_path, 0);
 sprintf(xorriso->info_text,"previous working directory:\n");
 Xorriso_info(xorriso,0);
 sprintf(xorriso->result_line,"%s/\n",Text_shellsafe(xorriso->wdi, sfe, 0));
 Xorriso_result(xorriso,0);
 if(strcmp(iso_rr_path,"/")==0 || iso_rr_path[0]==0) {
   strcpy(xorriso->wdi,"");
   Xorriso_option_pwdi(xorriso, 0);
   return(1);
 } else if(iso_rr_path[0]!='/') {
   strcpy(path, xorriso->wdi);
   if(Sfile_add_to_path(path,iso_rr_path,0)<=0)
     return(-1);
 } else {
   if(Sfile_str(path,iso_rr_path,0)<=0)
     return(-1);
 }

 ret= Xorriso_normalize_img_path(xorriso, path, eff_path, 1);
 if(ret<0)
   return(ret);
 if(ret==0) {
   sprintf(xorriso->info_text, "-cdi: not existing yet in ISO image : %s",
           Text_shellsafe(path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   ret= Xorriso_normalize_img_path(xorriso, path, eff_path, 2);
   if(ret<=0)
     return(ret);
 } else if(ret!=2) {
   sprintf(xorriso->info_text, "-cdi: not a directory : %s",
           Text_shellsafe(eff_path, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 strcpy(xorriso->wdi, eff_path);

 Xorriso_option_pwdi(xorriso, 0);
 return(1);
}


/* Option -cdx */
int Xorriso_option_cdx(struct XorrisO *xorriso, char *disk_path, int flag)
{
 char sfe[4*SfileadrL], path[SfileadrL], eff_path[SfileadrL];;
 int ret;

 if (strlen(disk_path)>sizeof(xorriso->wdx)) {
   sprintf(xorriso->info_text,"-cdx: disk_path too long (%d > %d)",
           strlen(disk_path), sizeof(xorriso->wdx)-1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 Xorriso_warn_of_wildcards(xorriso, disk_path, 0);
 sprintf(xorriso->info_text,"previous working directory on hard disk:\n");
 Xorriso_info(xorriso,0);
 sprintf(xorriso->result_line,"%s/\n",Text_shellsafe(xorriso->wdx, sfe, 0));
 Xorriso_result(xorriso,0);
 if(strcmp(disk_path,"/")==0) {
   strcpy(xorriso->wdx,"");
   Xorriso_option_pwdx(xorriso, 0);
   return(1);
 } else if(disk_path[0]!='/') {
   strcpy(path, xorriso->wdi);
   if(Sfile_add_to_path(path,disk_path,0)<=0)
     return(-1);
 } else {
   if(Sfile_str(path,disk_path,0)<=0)
     return(-1);
 }

 ret= Xorriso_normalize_img_path(xorriso, path, eff_path, 2|4);
 if(ret<=0)
   return(ret);
 if(eff_path[0]) {
   ret= Sfile_type(eff_path,1|4|8);
   if(ret<0) {
     sprintf(xorriso->info_text,"-cdx: file not found : %s",
             Text_shellsafe(eff_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(0);
   }
   if(ret!=2) {
     sprintf(xorriso->info_text,
             "-cdx: not a directory : %s",
             Text_shellsafe(eff_path, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(0);
   }
 }
 if(Sfile_str(xorriso->wdx,eff_path,0)<=0)
   return(-1);
 Xorriso_option_pwdx(xorriso, 0);
 return(1);
}


/* Option -chgrp alias -chgrpi */
int Xorriso_option_chgrpi(struct XorrisO *xorriso, char *gid, char *path,
                          int argc, char **argv, int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> LIBISOFS : would perform -chgrpi %s %s  ", gid, path);
 for(i= *idx; i<end_idx; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -chmod alias -chmodi */
int Xorriso_option_chmodi(struct XorrisO *xorriso, char *mode, char *path,
                          int argc, char **argv, int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> LIBISOFS : would perform -chmodi %s %s  ", mode, path);
 for(i= *idx; i<end_idx; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -chown alias -chowni */
int Xorriso_option_chowni(struct XorrisO *xorriso, char *uid, char *path,
                          int argc, char **argv, int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> LIBISOFS : would perform -chowni %s %s  ", uid, path);
 for(i= *idx; i<end_idx; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -close "on"|"off" */
int Xorriso_option_close(struct XorrisO *xorriso, char *mode, int flag)
{
 xorriso->do_close= !!strcmp(mode, "off");
 return(1);
}


/* Option -commit */
/* @param flag bit0= do not aquire outdrive as new indrive */
int Xorriso_option_commit(struct XorrisO *xorriso, int flag)
{
 int ret;
 char newdev[SfileadrL];

 if(!xorriso->volset_change_pending) {
   sprintf(xorriso->info_text,"-commit: No image modifications pending");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(2);
 }

 /* >>> care for modifying */

 ret= Xorriso_write_growing(xorriso, 0);
 if(ret<=0)
   return(ret);

 xorriso->volset_change_pending= 0;

 if(flag&1)
   return(1);
 strcpy(newdev, xorriso->outdev);
 ret= Xorriso_option_dev(xorriso, newdev, 3);
 return(ret);
}


/* Option -cp_r alias -cp_ri */
int Xorriso_option_cp_ri(struct XorrisO *xorriso, int argc, char **argv,
                         int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> LIBISOFS : -cp_ri  X: ");
 for(i= *idx; i<end_idx-1; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, " -> I: %s", argv[end_idx-1]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -cut_out */
int Xorriso_option_cut_out(struct XorrisO *xorriso, char *disk_path,
                off_t startbyte, off_t bytecount, char *iso_rr_path, int flag)
{

 fprintf(stderr, 
     ">>> LIBISOFS : would cut out from %s , byte %.f to %.f, and graft as %s",
     disk_path, (double) startbyte, (double) (startbyte+bytecount),
     iso_rr_path);

 return(1);
}


/* Options -dev , -indev, -outdev */
/** @param flag bit0=use as indev , bit1= use as outdev */
int Xorriso_option_dev(struct XorrisO *xorriso, char *adr, int flag)
{
 int ret;
 char sfe[4*SfileadrL];

 if(xorriso->ban_stdio_write && strncmp(adr, "stdio:", 6)==0) {
   sprintf(xorriso->info_text,
           "Drive address banned by -ban_stdio_write : '%s'",
           adr);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }

 if((flag&3)==0 || xorriso->in_drive_handle == xorriso->out_drive_handle)
   flag|= 3;
 if((flag&3)!=3) {
   /* <<< for now only -dev */;
   fprintf(stderr, ">>> XORRISO : would execute -%sdev %s\n",
           ((flag&3)==1 ? "in" : ((flag&3)==2 ? "out" : "")), adr);
   return(1);
 }

 if(xorriso->volset_change_pending && (flag&1)) {
   sprintf(xorriso->info_text,
           "%s: Image changes pending. -commit or -rollback first",
           (flag&2) ? "-dev" : "-indev");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }

 if(adr[0]==0) {
   if((flag&1) && xorriso->in_drive_handle != NULL) {
     if(xorriso->in_drive_handle == xorriso->out_drive_handle)
       sprintf(xorriso->info_text,"Giving up -dev %s", 
               Text_shellsafe(xorriso->indev, sfe, 0));
     else
       sprintf(xorriso->info_text,"Giving up -indev %s",
               Text_shellsafe(xorriso->indev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }
   if((flag&2) && xorriso->in_drive_handle != NULL &&
      xorriso->in_drive_handle != xorriso->out_drive_handle) {
     sprintf(xorriso->info_text,"Giving up -outdev %s",
             Text_shellsafe(xorriso->outdev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }
   ret= Xorriso_give_up_drive(xorriso, flag&3);
 } else
   ret= Xorriso_aquire_drive(xorriso, adr, flag&3); 
 if(ret<0)
   return(ret);
 return(1);
}


/* Option -devices */
int Xorriso_option_devices(struct XorrisO *xorriso, int flag)
{
 int ret;
 char sfe[4*SfileadrL];

 if(xorriso->volset_change_pending) {
   sprintf(xorriso->info_text,
           "-devices: Image changes pending. -commit or -rollback first");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->info_text[0]= 0;
 if(xorriso->in_drive_handle!=NULL || xorriso->out_drive_handle!=NULL) {
   if(xorriso->in_drive_handle == xorriso->out_drive_handle) {
     sprintf(xorriso->info_text, "Gave up -dev %s", 
             Text_shellsafe(xorriso->indev, sfe, 0));
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
   }else {
     if(xorriso->in_drive_handle) {
       sprintf(xorriso->info_text, "Gave up -indev %s", 
               Text_shellsafe(xorriso->indev, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     }
     if(xorriso->out_drive_handle) {
       sprintf(xorriso->info_text, "Gave up -outdev %s", 
               Text_shellsafe(xorriso->outdev, sfe, 0));
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
     }
   }
   Xorriso_give_up_drive(xorriso, 3);
 }
 ret= Xorriso_show_devices(xorriso, 0);
 return(ret);
}


/* Option -dialog "on"|"off" */
int Xorriso_option_dialog(struct XorrisO *xorriso, char *mode, int flag)
{
 xorriso->dialog= !!strcmp(mode, "off");
 return(1);
}


/* Option -dummy "on"|"off" */
int Xorriso_option_dummy(struct XorrisO *xorriso, char *mode, int flag)
{
 xorriso->do_dummy= !!strcmp(mode, "off");
 return(1);
}


/* Option -eject */
int Xorriso_option_eject(struct XorrisO *xorriso, char *which, int flag)
{
 int gu_flag= 4, ret;

 if(strncmp(which,"in",2)==0)
   gu_flag|= 1;
 else if(strncmp(which,"out",3)==0)
   gu_flag|= 2;
 else
   gu_flag|= 3;
 if((gu_flag&1) && xorriso->volset_change_pending) {
   sprintf(xorriso->info_text,
           "-eject: Image changes pending. -commit or -rollback first");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 ret= Xorriso_give_up_drive(xorriso, gu_flag);
 return(ret);
}


/* Option -end */
int Xorriso_option_end(struct XorrisO *xorriso, int flag)
{
 int ret;

 if(xorriso->volset_change_pending) {
   ret= Xorriso_option_commit(xorriso, 1);
   if(ret<=0)
     return(ret);
 }
 ret= Xorriso_give_up_drive(xorriso, 3);
 if(ret<=0)
   return(ret);
 return(1);
}


/* Option -f */
int Xorriso_option_f(struct XorrisO *xorriso, int flag)
{
 xorriso->do_follow_links= 1;
 return(1);
}


/* Option -find alias -findi */
int Xorriso_option_findi(struct XorrisO *xorriso, char *pattern, int flag)
{
 char sfe[4*SfileadrL];

 fprintf(stderr, ">>> XORRISO : filter by pattern %s\n", pattern);
 /* >>> prepare regex */

 fprintf(stderr, ">>> LIBISOFS : traverse ISO tree beginning at %s\n",
         Text_shellsafe(xorriso->wdi, sfe, 0));

 return(1);
}


/* Option -findx */
int Xorriso_option_findx(struct XorrisO *xorriso, char *pattern, int flag)
{
 char sfe[4*SfileadrL];

 fprintf(stderr, ">>> XORRISO : filter by pattern %s\n", pattern);
 /* >>> prepare regex */

 fprintf(stderr, ">>> XORRISO : traverse disk tree beginning at %s\n",
         Text_shellsafe(xorriso->wdx, sfe, 0));

 return(1);
}


/* Option -fs */
int Xorriso_option_fs(struct XorrisO *xorriso, char *size, int flag)
{
 double num;

 num= Scanf_io_size(size, 0);
 if(num < 64*1024 || num > 1024.0 * 1024.0 * 1024.0) {
   sprintf(xorriso->info_text, "-fs: wrong size %.f (allowed: %.f - %.f)",
           num, 64.0 * 1024.0, 1024.0 * 1024.0 * 1024.0);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->fs= num / 2048.0;
 if(xorriso->fs * 2048 < num)
   xorriso->fs++;
 return(1);
}


/* Option -gid */
int Xorriso_option_gid(struct XorrisO *xorriso, char *gid, int flag)
{
 double num;
 char text[80];
 struct group *grp;

 if(gid[0]==0 || strcmp(gid,"-")==0)
   xorriso->do_global_gid= 0;

 sscanf(gid, "%lf", &num);
 sprintf(text,"%.f",num);
 if(strcmp(text,gid)==0) {
   xorriso->global_gid= num;
   xorriso->do_global_gid= 1;
   return(1);
 }
 grp= getgrnam(gid);
 if(grp==NULL) {
   sprintf(xorriso->info_text, "-gid: Not a known group: '%s'", gid);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->global_gid= grp->gr_gid;
 xorriso->do_global_gid= 1;
 return(1);
}


/* Option -graft-points */
int Xorriso_option_graft_points(struct XorrisO *xorriso, int flag)
{
 xorriso->allow_graft_points= 1;
 return(1);
}


/* Option -help and part of -prog_help */
int Xorriso_option_help(struct XorrisO *xorriso, int flag)
{
 static char text[][80]={

#ifdef Xorriso_no_helP

"This binary program does not contain a help text.",
"If available, read: man 1 xorriso",

#else

"This program creates, loads, manipulates and writes ISO 9660 filesystem",
"images with Rock Ridge extensions. Write targets can be drives with optical",
"media or local filesystem objects.",
"",
"Note: Options marked by prefix \"> \" are not implemented yet.",
"",
"Preparation options:",
"Drive addresses are either /dev/... as listed with option -devices or",
"disk files with prefix \"stdio:\", e.g. stdio:/tmp/pseudo_drive .",
"  -dev address   Set input and output drive and load eventual ISO image.",
"                 Set the image expansion method to growing.",
"> -indev address  Set input drive and load eventual ISO image. Switch from",
"                 growing to modifying.",
"> -outdev address",
"                 Set output drive and switch from growing to modifying.",
"  -ban_stdio_write",
"                 Allow for writing only the usage of optical drives.",
"  -blank \"fast\"|\"all\"|\"deformat\"|\"deformat_quickest\"",
"                 Blank media resp. invalidate ISO image on media.",
"  -format \"full\"",
"                 Format DVD-RW to overwriteable state or de-ice DVD+RW.",
"> -V volume_id   Specifies the volume ID text.",
"",
"  -J             Generate Joliet info additional to Rock Ridge info.",
"",
"  -uid uid       User id to be used for all iso_rr_paths.",
"  -gid gid       Group id for the same purpose.",
"",
"  -devices       Show list of available optical drives and their addresses.",
"",
"  -toc           Show media specific table of content. (MMC, not ISO 9660)",
"",
"  -print-size    Print the foreseeable consumption by next -commit.",
"",
"  -tell_media_space",
"                 Print foreseeable available space on output media",
"",
"Manipulation options:",
"disk_path is a path to an object in the local filesystem tree.",
"iso_rr_path is the Rock Ridge name of a file object in the ISO image.",
"pathspec is either a disk_path or (if allowed) a pair: iso_rr_path=disk_path",
"Options with variable length path list [...] need \"--\" as end mark",
"if they are followed by another option. In dialog and with options read from",
"files, the line end serves as such a mark. With program arguments this mark",
"can be omitted only with the last option in the list of arguments.",
"",
"  -add pathspec [...] Insert the given files or directory trees from",
"                 filesystem into the ISO image. Much like mkisofs.",
"  -path-list disk_path",
"                 Like -add but read the pathspecs from file disk_path.",
"  -graft-points  Allow pathspecs of form  iso_rr_path=disk_path",
"",
"> -cp_r disk_path [...] iso_rr_path",
"                 Insert the given files or directory trees from filesystem",
"                 into the ISO image.",
"  -rm iso_rr_path [...]",
"                 Delete the given files from the ISO image.",
"  -rm_r iso_rr_path [...]",
"                 Delete the given directory trees from ISO image.",
"  -mv iso_rr_path [...] iso_rr_path",
"                 Rename the given file objects in the ISO tree to the last",
"                 argument in the list.",
"> -chown uid iso_rr_path [...]",
"                 Equivalent to chown in the ISO image.",
"> -chgrp gid iso_rr_path [...]",
"                 Equivalent to chgrp in the ISO image.",
"> -chmod mode iso_rr_path [...]",
"                 Equivalent to chmod in the ISO image.",
"> -alter_date type timestring iso_rr_path [...]",
"                 Alter the date entries of a file in the ISO image. type is",
"                 one of \"a\", \"m\", \"b\" for:",
"                 access time, modification time, both times.",
"  -mkdir iso_rr_path [...]",
"                 Create empty directories if they do not exist yet",
"> -rmdir iso_rr_path [...]",
"                 Delete empty directories.",
"  --             Mark end of particular action argument list.",
"",
"> -f             Follow symbolic links within disk_path.",
"",
"> -overwrite \"on\"|\"off\"",
"                 Allow or disallow to overwrite existing files in ISO image.",
"> -reassure \"on\"|\"off\"",
"                 If \"on\" then ask the user for \"y\" or \"n\" with any",
"                 file before deleting or overwriting it in the ISO image.",
"",
"Write-to-media options:",
"",
"  -rollback      Discard the manipulated ISO image and reload it.",
"",
"  -commit        Perform the write operation and then perform -dev outdrive.",
"                 Hint: To perform a final write operation with no new -dev",
"                       and no new loading of image, execute option -end.",
"  -close \"on\"|\"off\"",
"                 If \"on\" then mark the written media as not appendable.",
"  -dummy \"on\"|\"off\"",
"                 If \"on\" simulate burning. Refuse if media cannot simulate.",
"  -speed number[\"k\"|\"m\"|\"[x]CD\"|\"[x]DVD\"]",
"                 Set the burn speed. Default is 0 = maximum speed.",
"  -fs number[\"k\"|\"m\"]",
"                 Set the size of the fifo buffer. (Default is 4m)",
"  -eject \"in\"|\"out\"|\"all\"",
"                 Immediately eject the media in -indev, resp. -outdev,",
"                 resp. both.",
"",
"Navigation options:",
"",
"  -cd iso_rr_path  Change working directory in the ISO image. iso_rr_paths",
"                 which do not begin with '/' will be inserted beginning at",
"                 the path given with -cd. -ls patterns will eventually",
"                 looked up at this path.",
"  -cdi disk_path   Same as -cd disk_path",
"  -cdx disk_path  Change the current working directory in the local",
"                 filesystem. disk_paths which do not begin with '/'",
"                 will be looked up beginning at the path given with -cdx.",
"                 -lsx patterns will eventually be looked up at this path.",
"  -pwd           tells the current working directory in the ISO image.",
"  -pwdi          same as -pwd.",
"  -pwdx          tells the current working directory in the local filesystem.",
"",
"  -ls pattern [...]  lists files of the ISO image which match one of the",
"                 given shell parser patterns. (I.e. wildcards '*' '?')",
"  -lsi pattern [...]   same as -ls.",
"> -lsx pattern [...]   lists files of the local filesystem which match one",
"                 of the patterns.",
"",
"  -ls_l pattern [...]  like -ls but also telling some file attributes.",
"  -ls_li pattern [...] same as -ls_l.",
"> -ls_lx pattern [...] like -lsx but also telling some file attributes.",
"",
"  -du pattern [...]  recursively lists sizes of files or directories which",
"                 match one of the shell parser patterns.",
"  -dui pattern [...]  same as -du.",
"  -du_s pattern [...]  like -du but summing up subdirectories without",
"                 listing them explicitely.",
"  -dui pattern [...]  same as -du_s.",
"",
"> -find  pattern  lists matching files below current working directory in",
"                 the ISO image.",
"> -findi pattern  same as -find.",
"> -findx pattern  lists matching files below current working directory in",
"                 the local filesystem.",
"",
"General options:",
"  -help       Print this text",
"  -abort_on severity   Set the threshhold for events to abort the program.",
"              Useful severities are: NEVER, ABORT, FATAL, SORRY, WARNING",
"  -report_about severity   Set the threshhold for events to be reported.",
"              Use -abort_on severities or: HINT, NOTE, UPDATE, DEBUG, ALL",
"  -dialog     after all arguments are processed, enter dialog mode.",
"              In this mode you may enter searchtexts or any of the options",
"              described here. One per line.",
"  -dialog_reset  Revoke -dialog (works only if given as argument)",
"  -page len width  Prompt user after len output lines (0=no prompt).",
"              width (default 80) can adjust line number computation",
"              to the output terminal's line width.",
#ifdef Xorriso_with_readlinE
"  -use_stdin  Use raw standard input even if libreadline is available",
"  -use_readline  Use libreadline for dialog if available",
"  -history text  Copy text into libreadline history. This command",
"              itself is not copied to the history list.",
#endif /* Xorriso_with_readlinE */
"  -pkt_output \"on\"|\"off\"  Direct output to stdout and prefix each line",
"              by a short header which tells channel id and a mode number.",
"              Each such output packet is finalized by a newline.",
"              Channel ids are 'R:' for result lines, 'I:' for notes",
"              and error messages, 'M:' for -mark texts. Bit 0 of the",
"              mode number tells whether the newline is also part of the",
"              packet payload. Example of a info message with newline:",
"                I:1: enter option text :",
"              -pkt_output:on is intended for use by frontend programs.",
"  -logfile channel fileaddress  Copy output of a channel to the given file.",
"              channel may be 'R','I','M' as with -pkt_output or '.'",
"              for the consolidated -pkt_output stream.",
"  -mark text  If text is not empty it will get put out each time an",
"              option is completed.",
"  -temp_mem_limit number[\"k\"|\"m\"]",
"              Set the maximum size for pattern expansion. (Default is 16m)",
"  -prog text  Use text as this program's name in subsequent messages",
"  -prog_help text  Use text as this program's name and perform -help",
"  -status mode|filter  Report the current settings of persistent options.",
"              Modes:",
"                 short... print only important or altered options",
"                 long ... print options even if they have default settings",
"                 long_history  like long plus -history: lines",
"              Filters begin with '-' and are compared literally against the",
"              output lines of -status long_history. A line is put out only",
"              if its start matches the filter.",
"  -status_history_max number  Maximum number of history lines to be reported",
"              with -status:long_history",
"  -options_from_file fileaddress",
"              Reads lines from the given file and executes them as program",
"              options.",
"  -no_rc      Only if used as first command line argument this option",
"              prevents reading and interpretation of startup files.",
"  -print text",
"              Print a text to result channel.",
"  -prompt text",
"              Wait for Enter key resp. for a line of input at stdin.",
"  # any text  Is ignored. In dialog mode the input line will be stored in",
"              the eventual readline history, nevertheless.", 
"  -version    Tell program and version number",
"  -end        End program immediately",
"",
"",
"Option -page causes a user prompt after the given number of result lines.",
"Empty input resumes output until the next prompt. Other input may be:",
"  @     suppresses paging until the current action is done",
"  @@    suppresses further result output but continues the action",
"  @@@   aborts the current action",
"  other aborts the current action and executes input as new",
"        option",
"",

#endif /* ! Xorriso_no_helP */

"@ENDE_OF_HELPTEXT_(HOPEFULLY_UNIQUELY_SILLY_TEXT)@"
 };

 char *tpt= NULL;
 int i,pass;

 Xorriso_restxt(xorriso,"\n"); 
 sprintf(xorriso->result_line,"usage: %s [settings|actions]\n",
         xorriso->progname); 
 Xorriso_result(xorriso,0);
 Xorriso_restxt(xorriso,"\n"); 
 for(pass=0;pass<1;pass++) {
   for(i=0;1;i++) {
     if(pass==0)
       tpt= text[i];
     
     if(strcmp(tpt,"@ENDE_OF_HELPTEXT_(HOPEFULLY_UNIQUELY_SILLY_TEXT)@")==0)
   break;
     sprintf(xorriso->result_line,"%s\n",tpt);
     Xorriso_result(xorriso,0);
     if(xorriso->request_to_abort)
       return(1);
   }
 }
 Xorriso_restxt(xorriso,"\n"); 
 return(1);
}


/* Option -history */
int Xorriso_option_history(struct XorrisO *xorriso, char *line, int flag)
{
 Xorriso_dialog_input(xorriso,line,strlen(line)+1,2);
 return(1);
}


/* Option -J */
int Xorriso_option_j_capital(struct XorrisO *xorriso, int flag)
{
 xorriso->do_joliet= 1;
 return(1);
}


/* Options -ls alias -lsi and -ls_l alias -ls_li
       and -du alias -dui and -du_s alias -du_si
   @param flag bit0= long format (-ls_l , -du)
               bit1= do not expand patterns but use literally
               bit2= du rather than ls
*/
int Xorriso_option_lsi(struct XorrisO *xorriso, int argc, char **argv,
                      int *idx, int flag)
{
 int ret, end_idx, filec= 0, nump, i;
 char **filev= NULL, **patterns= NULL;
 off_t mem= 0;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 1);

 nump= end_idx - *idx;
 if(flag&2) {
   if(nump <= 0)
     return(0);
 } else if(nump <= 0) {
   patterns= calloc(sizeof(char *), 1);
   if(patterns == NULL) {
no_memory:;
     sprintf(xorriso->info_text,
             "Cannot allocate enough memory for pattern expansion");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
     {ret= -1; goto ex;}
   }
   nump= 1;
   patterns[0]= "*";
 } else {
   patterns= calloc(sizeof(char *), nump);
   if(patterns==NULL)
     goto no_memory;
   for(i= 0; i<nump; i++) {
     if(argv[i + *idx][0]==0)
       patterns[i]= "*";
     else
       patterns[i]= argv[i + *idx];
   }
 }
 if(flag&2) {
   ret= Xorriso_ls_filev(xorriso, nump, argv + (*idx), mem, flag&1); 
 } else if(nump==1 && strcmp(patterns[0],"*")==0 && !(flag&4)){
   /* save temporary memory by calling simpler function */
   ret= Xorriso_ls(xorriso, (flag&1)|4);
 } else {
   ret= Xorriso_expand_pattern(xorriso, nump, patterns, &filec, &filev,
                               &mem, 0);
   if(ret<=0)
     {ret= 0; goto ex;}
   ret= Xorriso_ls_filev(xorriso, filec, filev, mem, flag&(1|4)); 
 }
 if(ret<=0)
   {ret= 0; goto ex;}

 ret= 1;
ex:;
 if(patterns!=NULL)
   free((char *) patterns);
 Sfile_destroy_argv(&filec, &filev, 0);
 (*idx)= end_idx;
 return(ret);
}


/* Options -lsx and -ls_lx */
/* @param flag bit0= long format (-ls_l) */
int Xorriso_option_lsx(struct XorrisO *xorriso, char *pattern, int flag)
{
 char sfe[4*SfileadrL];

 fprintf(stderr, ">>> XORRISO : filter by pattern %s\n", pattern);
 /* >>> prepare regex */

 fprintf(stderr, ">>> XORRISO : -ls of disk directory %s\n",
         Text_shellsafe(xorriso->wdx, sfe, 0));

 return(1);
}


/* Option -logfile */
int Xorriso_option_logfile(struct XorrisO *xorriso, char *channel,
                                                      char *fileadr, int flag)
{
 int hflag,channel_no= 0, ret;
   
 if(channel[0]==0) {
logfile_wrong_form:;
   sprintf(xorriso->info_text,"Wrong form. Correct would be: -logfile \".\"|\"R\"|\"I\"|\"M\" file_address");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 hflag= 2;
 if(channel[0]=='R')
   channel_no= 1;
 else if(channel[0]=='I')
   channel_no= 2;
 else if(channel[0]=='M')
   channel_no= 3;
 else if(channel[0]=='.')
   hflag= 4;
 else
   goto logfile_wrong_form;
 if(strcmp(fileadr,"-")==0 || fileadr[0]==0)
     hflag|= (1<<15);
 xorriso->logfile[channel_no][0]= 0;
 ret= Write_to_channel(fileadr,channel_no,hflag);
 if(ret<=0) {
   sprintf(xorriso->info_text, "Cannot open logfile:  %s", fileadr);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
 } else if(!(hflag&(1<<15)))
   if(Sfile_str(xorriso->logfile[channel_no], fileadr, 0)<=0)
     return(-1);
 return(ret>0);
}


/* Option -mark */
int Xorriso_option_mark(struct XorrisO *xorriso, char *mark, int flag)
{
 if(mark[0]==0)
   xorriso->mark_text[0]= 0;
 else
   strncpy(xorriso->mark_text,mark,sizeof(xorriso->mark_text)-1);
 xorriso->mark_text[sizeof(xorriso->mark_text)-1]= 0;
 return(1);
}


/* Option -mkdir alias -mkdiri */
int Xorriso_option_mkdiri(struct XorrisO *xorriso, int argc, char **argv,
                          int *idx, int flag)
{
 int i, end_idx, ret, was_failure= 0;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 for(i= *idx; i<end_idx; i++) {
   ret= Xorriso_mkdir(xorriso, argv[i], 0);
   if(ret<0)
     {ret= 0; goto ex;}
   if(ret==0)
     was_failure= 1;
 }
 ret= 1; 
ex:;
 (*idx)= end_idx;
 return(ret>0 && !was_failure);
}


/* Option -mv alias -mvi */
int Xorriso_option_mvi(struct XorrisO *xorriso, int argc, char **argv,
                      int *idx, int flag)
{
 int i, end_idx, ret, is_dir= 0, was_failure= 0;
 char sfe[4*SfileadrL], sfe2[4*SfileadrL];
 char eff_origin[SfileadrL], eff_dest[SfileadrL];
 char dest_dir[SfileadrL], *leafname;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);
 if(end_idx - *idx < 2) {
   sprintf(xorriso->info_text, "-mvi: not enough arguments");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}
 }

 /* Check existence of old addresses */
 for(i= *idx; i<end_idx-1; i++) {
   ret= Xorriso_normalize_img_path(xorriso, argv[i], eff_origin, 0);
   if(ret<=0)
     {ret= 0; goto ex;}
 }
 /* Evaluate target address */
 ret= Xorriso_normalize_img_path(xorriso, argv[end_idx-1], eff_dest, 1);
 if(ret<0)
   {ret= 0; goto ex;}
 if(ret==2) {
   is_dir= 1;
   strcpy(dest_dir, eff_dest);
 } else if(end_idx - *idx > 2) {
   sprintf(xorriso->info_text,
        "-mvi: more than one origin given, destination is a non-directory: %s",
        Text_shellsafe(argv[end_idx-1], sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}
 }
 if(ret==0) { /* compute complete eff_dest */
   ret= Xorriso_normalize_img_path(xorriso, argv[end_idx-1], eff_dest, 2);
   if(ret<0)
     {ret= 0; goto ex;}
 }
 /* Perform movements */
 for(i= *idx; i<end_idx-1; i++) {
   ret= Xorriso_normalize_img_path(xorriso, argv[i], eff_origin, 0);
   if(ret<=0)
     {ret= 0; goto ex;}
   if(is_dir) {
     leafname= strrchr(eff_origin, '/');
     if(leafname==NULL)
       leafname= eff_origin;
     else
       leafname++;
     strcpy(eff_dest, dest_dir);
     ret= Sfile_add_to_path(eff_dest, leafname, 0);
     if(ret<=0) {
       printf(xorriso->info_text, "Effective path gets much too long (%d)",
             strlen(eff_dest)+strlen(leafname)+1);
       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
       {ret= 0; goto ex;}
     }
   }
   ret= Xorriso_rename(xorriso, eff_origin, eff_dest, 0);
   if(ret<0)
     goto ex;
   if(ret==0)
     was_failure= 1;
   else {
     sprintf(xorriso->info_text, "Renamed in ISO image: %s to %s\n",
             Text_shellsafe(eff_origin,sfe,0),Text_shellsafe(eff_dest,sfe2,0));
     Xorriso_info(xorriso, 0);
   }
 }
 ret= !was_failure;
ex:;
 (*idx)= end_idx;
 return(ret);
}


/* Option -no_rc */
int Xorriso_option_no_rc(struct XorrisO *xorriso, int flag)
{
 xorriso->no_rc= 1;
 return(1);
}


/* Option -options_from_file*/
int Xorriso_option_options_from_file(struct XorrisO *xorriso, char *adr,
                                     int flag)
/*
 bit0= called from Xorriso_prescan_args,
       therefore execute via that same function
*/
/*
return:
 <=0 error , 1 = success , 3 = end program run
*/
{
 int ret,linecount= 0, argc;
 FILE *fp= NULL;
 char line[4*SfileadrL], shellsafe[5*SfileadrL];
 char **argv= NULL;

 if(adr[0]==0) {
   sprintf(xorriso->info_text,"Empty file name given with -options_from_file");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 Text_shellsafe(adr,shellsafe,0);
 if(xorriso->is_dialog) {
   sprintf(xorriso->info_text,"+ performing command lines from file %s :\n",
           shellsafe);
   Xorriso_info(xorriso,1);
 }
 fp= Afile_fopen(adr,"rb",((!!xorriso->packet_output)<<6));
 if(fp==NULL)
   return(0);
 while(1) {
   if(Sfile_fgets(line,sizeof(line),fp)==NULL) {
     ret= 1;
     if(ferror(fp))
       ret= 0;
 break;
   }
   linecount++;
   if(line[0]==0 || line[0]=='#')
 continue;

   if(flag&1) {
     ret= Sfile_make_argv(xorriso->progname, line, &argc, &argv, 4|8);
     if(ret<=0)
       goto ex;
     ret= Xorriso_prescan_args(xorriso,argc,argv,1);
     Sfile_make_argv("", "", &argc, &argv, 2); /* release memory */
     if(ret==0)
       {ret= 3; goto ex;}
     if(ret<0)
       goto ex;
   } else {
     if(xorriso->is_dialog) {
       sprintf(xorriso->info_text,"+ %d:  %s\n",linecount,line);
       Xorriso_info(xorriso,1);
     }
     ret= Xorriso_execute_option(xorriso,line,1|(1<<16));
     if(ret<=0 || ret==3)
       goto ex;
   }
 }
ex:;
 Xorriso_reset_counters(xorriso,1);
 if(fp!=NULL)
   fclose(fp);
 if(ret<=0) {
   sprintf(xorriso->info_text,
           "error triggered by line %d of file:\n    %s\n",
           linecount,shellsafe);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 1);
 }
 return(ret);
}


/* Option -overwrite "on"|"off" */
int Xorriso_option_overwrite(struct XorrisO *xorriso, char *mode, int flag)
{
 xorriso->do_overwrite= !!strcmp(mode, "off");
 return(1);
}


/* Option -page */
int Xorriso_option_page(struct XorrisO *xorriso, int len, int width, int flag)
{
 if(len<0 || width<=0) {
   sprintf(xorriso->info_text,
             "Improper numeric value of arguments of -page:  %d  %d",
             len, width);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->result_page_length= len;
 xorriso->result_page_width= width;
 return(1);
}


/* Option -path-list */
int Xorriso_option_path_list(struct XorrisO *xorriso, char *adr, int flag)
{
 int ret,linecount= 0, insertcount= 0, null= 0;
 FILE *fp= NULL;
 char *argpt, sfe[4*SfileadrL],line[SfileadrL];
 
 if(adr[0]==0) {
   sprintf(xorriso->info_text,"Empty file name given with -path-list");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 fp= Afile_fopen(adr,"rb",((!!xorriso->packet_output)<<6));
 if(fp==NULL)
   return(0);
 while(1) {
   if(Sfile_fgets(line,sizeof(line),fp)==NULL) {
     ret= 1;
     if(ferror(fp))
       ret= 0;
 break;
   }
   linecount++;
   if(line[0]==0)
 continue;
   argpt= line;
   null= 0;
   ret= Xorriso_option_add(xorriso, 1, &argpt, &null, 1);
   if(ret<=0)
     goto ex;
   insertcount++;
 }
 ret= 1;
ex:;
 if(ret<=0) {
   sprintf(xorriso->info_text, "Aborted reading of file %s in line number %d",
           Text_shellsafe(adr, sfe, 0), linecount);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
 }
 sprintf(xorriso->info_text, "Added %d items from file %s\n",
         insertcount, Text_shellsafe(adr, sfe, 0));
 Xorriso_info(xorriso,0);
 return(ret);
}


/* Option -pkt_output */
int Xorriso_option_pkt_output(struct XorrisO *xorriso, char *mode, int flag)
{
 if(strcmp(mode,"off")==0)
   xorriso->packet_output= 0;
 else
   xorriso->packet_output= 1;
 return(1);
}


/* Option -print */
int Xorriso_option_print(struct XorrisO *xorriso, char *text, int flag)
{
 sprintf(xorriso->result_line,"%s\n",text);
 Xorriso_result(xorriso,1);
 return(1);
}


/* Option -print-size */
int Xorriso_option_print_size(struct XorrisO *xorriso, int flag)
{
 int ret;

 if(!xorriso->volset_change_pending) {
   sprintf(xorriso->info_text,"-print-size: No image modifications pending");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   sprintf(xorriso->result_line,"Image size   : 0\n");
   Xorriso_result(xorriso,0);
   return(2);
 }

 /* >>> care for modifying */

 ret= Xorriso_write_growing(xorriso, 1);
 if(ret<=0) {
   sprintf(xorriso->info_text,"-print-size: Failed to set up virtual -commit");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 sprintf(xorriso->result_line,"Image size   : %d\n", ret);
 Xorriso_result(xorriso,0);
 return(1);
}


/* Option -prog */
int Xorriso_option_prog(struct XorrisO *xorriso, char *name, int flag)
{
 if(strlen(name)>=sizeof(xorriso->progname)) {
   sprintf(xorriso->info_text,
           "Name too long with option -prog (%d > %d)",
           strlen(name), sizeof(xorriso->progname)-1);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 if(Sfile_str(xorriso->progname,name,0)<=0)
   return(-1);
 return(1);
}


/* Option -prog_help */
int Xorriso_option_prog_help(struct XorrisO *xorriso, char *name, int flag)
{
 int ret;

 ret= Xorriso_option_prog(xorriso, name, 0);
 if(ret<=0)
   return(ret);
 ret= Xorriso_option_help(xorriso, 0);
 return(ret);
}


/* Option -prompt */
int Xorriso_option_prompt(struct XorrisO *xorriso, char *text, int flag)
{
 int ret;
 char line[80];

 strncpy(xorriso->result_line,text,sizeof(xorriso->result_line)-1);
 xorriso->result_line[sizeof(xorriso->result_line)-1]= 0;
 Xorriso_result(xorriso,0);
 ret= Xorriso_dialog_input(xorriso, line, sizeof(line),1);
 return(ret);
}


/* Option -pwd alias -pwdi */
int Xorriso_option_pwdi(struct XorrisO *xorriso, int flag)
{
 sprintf(xorriso->info_text,"current working directory in ISO image:\n");
 Xorriso_info(xorriso,0);
 sprintf(xorriso->result_line,"%s/\n",xorriso->wdi);
 Xorriso_result(xorriso,0);
 return(1);
}


/* Option -pwdx */
int Xorriso_option_pwdx(struct XorrisO *xorriso, int flag)
{
 sprintf(xorriso->info_text,"current working directory on hard disk:\n");
 Xorriso_info(xorriso,0);
 sprintf(xorriso->result_line,"%s/\n",xorriso->wdx);
 Xorriso_result(xorriso,0);
 return(1);
}


/* Option -reassure "on"|"off" */
int Xorriso_option_reassure(struct XorrisO *xorriso, char *mode, int flag)
{
 xorriso->do_reassure= !!strcmp(mode, "off");
 return(1);
}


/* Option -report_about */
int Xorriso_option_report_about(struct XorrisO *xorriso, char *severity,
                                int flag)
{
 int ret, sev;
 char sfe[4*SfileadrL];

 ret= Xorriso__text_to_sev(severity, &sev, 0);
 if(ret<=0) {
   sprintf(xorriso->info_text,
           "-report_about: Not a known severity name : %s",
           Text_shellsafe(severity, sfe, 0));
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(ret);
 }
 if(Sfile_str(xorriso->report_about_text,severity,0)<=0)
   return(-1);
 xorriso->report_about_severity= sev;
 return(1);
}


/* Options -rm alias -rmi , and -rm_r aias -rm_ri */
/* @param flag bit0=recursive */
int Xorriso_option_rmi(struct XorrisO *xorriso, int argc, char **argv,
                       int *idx, int flag)
{
 int i, end_idx, ret;
 char path[SfileadrL], eff_path[SfileadrL];

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 for(i= *idx; i<end_idx; i++) {
   if(Sfile_str(path,argv[i],0)<=0)
     {ret= -1; goto ex;}
   if(path[0]!='/') {
     ret= Sfile_prepend_path(xorriso->wdi, path, 0);
     if(ret<=0)
       goto ex;
   }
   ret= Xorriso_normalize_img_path(xorriso, path, eff_path, 2);
   if(ret<=0)
     return(ret);
   strcpy(path, eff_path);

   ret= Xorriso_rmi(xorriso, path, flag&1);
   if(ret<=0)
     goto ex;
   sprintf(xorriso->info_text, "Removed from ISO image: %s '%s'\n",
           (ret>1 ? "subtree" : "file"), path);
   Xorriso_info(xorriso, 0);
 }
 ret= 1;
ex:; 
 (*idx)= end_idx;
 return(ret);
}


/* Option -rmdir alias -rmdiri */
int Xorriso_option_rmdiri(struct XorrisO *xorriso, int argc, char **argv,
                          int *idx, int flag)
{
 int i, end_idx;

 end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 0);

 fprintf(stderr, ">>> LIBISOFS : -rmdiri  ");
 for(i= *idx; i<end_idx; i++)
   fprintf(stderr, "%s ", argv[i]);
 fprintf(stderr, "\n");
 
 (*idx)= end_idx;
 return(1);
}


/* Option -rollback */
int Xorriso_option_rollback(struct XorrisO *xorriso, int flag)
{
 int ret;
 char indev[SfileadrL];

 if(Sfile_str(indev, xorriso->indev, 0)<=0)
   return(-1);
 ret= Xorriso_give_up_drive(xorriso, 1);
 if(ret<=0)
   return(ret);
 ret= Xorriso_option_dev(xorriso, indev,
                         1|((xorriso->out_drive_handle==NULL)<<1));
 return(ret);
}


/* Option -speed */
int Xorriso_option_speed(struct XorrisO *xorriso, char *speed, int flag)
{
 int is_cd= 1, unit_found= 0;
 double num;
 char *cpt;

 if(speed[0]==0) {
   xorriso->speed= 0; /* full speed */
   return(1);
 }

 sscanf(speed,"%lf",&num);
 for(cpt= speed+strlen(speed)-1; cpt>=speed; cpt--)
   if(isdigit(*cpt) || *cpt=='.')
 break;
 cpt++;

 if(*cpt=='k' || *cpt=='K') {
   /* is merchand kilobyte, stays merchand kilobyte */
   unit_found= 1;
 } else if(*cpt=='m' || *cpt=='M') {
   num*= 1000;
   unit_found= 1;
 } else if(*cpt=='x' || *cpt=='X')
   cpt++;

 if(*cpt=='c' || *cpt=='C') {
cd_speed:;
   num*= 176.4;
 } else if(*cpt=='d' || *cpt=='D') {
dvd_speed:;
   num*= 1385;
 } else if (!unit_found) {

   /* >>> try to determine target media */;

   if(is_cd)
     goto cd_speed;
   else
     goto dvd_speed;
 }

 if(num> 2.0e9) {
   sprintf(xorriso->info_text,
           "-speed: Value too large or not recognizable: '%s'", speed);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->speed= num;
 if(xorriso->speed<num)
   xorriso->speed++;
 return(1);
}


/* Option -status */
int Xorriso_option_status(struct XorrisO *xorriso, char *mode, int flag)
{
 if(strcmp(mode,"short")==0)
   Xorriso_status(xorriso,NULL,NULL,1);
 else if(strcmp(mode,"long")==0)
   Xorriso_status(xorriso,NULL,NULL,0);
 else if(strcmp(mode,"long_history")==0)
   Xorriso_status(xorriso,NULL,NULL,8);
 else if(mode[0]=='-')
   Xorriso_status(xorriso,mode,NULL,8);
 else
   Xorriso_status(xorriso,NULL,NULL,1);
 return(1);
}


/* Option -status_history_max */
int Xorriso_option_status_history_max(struct XorrisO *xorriso, int num,
                                      int flag)
{
 if(num>=0 && num<1000000)
   xorriso->status_history_max= num;
 return(1);
}


/* Option -tell_media_space */
int Xorriso_option_tell_media_space(struct XorrisO *xorriso, int flag)
{
 int ret, free_space= 0, media_space= 0;

 ret= Xorriso_tell_media_space(xorriso, &media_space, &free_space, 0);
 if(ret<0) {
   sprintf(xorriso->info_text, "Cannot -tell_media_space");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 if(free_space<0) {
   sprintf(xorriso->info_text,
           "Pending image size larger than free space on media");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
 }
 sprintf(xorriso->result_line, "Write space  : %d\n", media_space);
 Xorriso_result(xorriso, 0);
 sprintf(xorriso->result_line, "Free space   : %d\n", free_space);
 Xorriso_result(xorriso, 0);
 return(1);
}


/* Option -temp_mem_limit */
int Xorriso_option_temp_mem_limit(struct XorrisO *xorriso, char *size,
                                  int flag)
{
 double num;

 num= Scanf_io_size(size, 0);
 if(num < 64.0 * 1024.0 || num > 1024.0 * 1024.0 * 1024.0) {
   sprintf(xorriso->info_text,
           "-temp_mem_limit: wrong size %.f (allowed: %.f - %.f)",
           num, 64.0 * 1024.0, 1024.0 * 1024.0 * 1024.0);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->temp_mem_limit= num;
 return(1);
}


/* Option -toc */
int Xorriso_option_toc(struct XorrisO *xorriso, int flag)
{
 int ret;

 ret= Xorriso_toc(xorriso, 0);
 return(ret);
}


/* Option -uid */
int Xorriso_option_uid(struct XorrisO *xorriso, char *uid, int flag)
{
 double num;
 char text[80];
 struct passwd *pwd;

 if(uid[0]==0 || strcmp(uid,"-")==0)
   xorriso->do_global_uid= 0;

 sscanf(uid, "%lf", &num);
 sprintf(text,"%.f",num);
 if(strcmp(text,uid)==0) {
   xorriso->global_uid= num;
   xorriso->do_global_uid= 1;
   return(1);
 }

 pwd= getpwnam(uid);
 if(pwd==NULL) {
   sprintf(xorriso->info_text, "-gid: Not a known user: '%s'", uid);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
 xorriso->global_uid= pwd->pw_uid;
 xorriso->do_global_uid= 1;
 return(1);
}


/* Option -use_readline */
int Xorriso_option_use_readline(struct XorrisO *xorriso, char *mode, int flag)
{
 if(strcmp(mode,"off")==0)
   xorriso->use_stdin= 1;
 else
   xorriso->use_stdin= 0;
 return(1);
}


/* Option -uid */
int Xorriso_option_v_capital(struct XorrisO *xorriso, char *volid, int flag)
{
 fprintf(stderr, ">>> LIBISOFS : -V %s\n", volid);
 return(1);
}


/* Option -version */
int Xorriso_option_version(struct XorrisO *xorriso, int flag)
{

 /* >>> print rather to result channel */;

 printf("xorriso %s : RockRidge filesystem manipulator\n", PROG_VERSION);
 printf("Copyright (C) 2007, Thomas Schmitt <scdbackup@gmx.net>, libburnia project\n");
 printf("Version timestamp :  %s\n",Xorriso_timestamP);
 printf("Build timestamp   :  %s\n",Xorriso_build_timestamP);

 return(1);
}


/* ---------------------------- End Options API ------------------------ */


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
*/
/*
 bit0= recursion
*/
{
 int ret;
 int num1, num2;
 double d1, d2;
 char *cmd, *arg1, *arg2, *arg4;
 
 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:;
 xorriso->prepended_wd= 0;
 xorriso->request_to_abort= 0;
 Xorriso_set_problem_status(xorriso, "", 0);
 if((*idx)<argc)
   cmd= argv[*idx];
 else
   cmd= "";
 (*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,"-add")==0) {
   ret= Xorriso_option_add(xorriso, argc, argv, idx, 0);

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

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

 } else if(strcmp(cmd,"-blank")==0) {
   (*idx)++;
   ret= Xorriso_option_blank(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,"-chgrp")==0 || strcmp(cmd,"-chgrpi")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_chgrpi(xorriso, arg1, arg2, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"-chmod")==0 || strcmp(cmd,"-chmodi")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_chmodi(xorriso, arg1, arg2, argc, argv, idx, 0);   

 } else if(strcmp(cmd,"-chown")==0 || strcmp(cmd,"-chowni")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_chowni(xorriso, arg1, arg2, argc, argv, idx, 0);   

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

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

 } else if(strcmp(cmd,"-cp_r")==0 || strcmp(cmd,"-cp_ri")==0) {
   ret= Xorriso_option_cp_ri(xorriso, argc, argv, idx, 0);

 } else if(strcmp(cmd,"-cut_out")==0) {
   (*idx)+= 2;
   d1= d2= -1;
   sscanf(arg2,"%lf", &d1);
   if((*idx)<argc)
     sscanf(argv[*idx],"%lf", &d2);
   if((*idx)+1<argc)
     arg4= argv[(*idx)+1];
   else
     arg4= "";
   (*idx)+= 2;
   ret= Xorriso_option_cut_out(xorriso, arg1, (off_t) d1, (off_t) d2, arg4, 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,"-dummy")==0) {
   (*idx)++;
   ret= Xorriso_option_dummy(xorriso, arg1, 0);

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

 } else if(strcmp(cmd,"-du")==0   || strcmp(cmd,"-dui")==0 ||
           strcmp(cmd,"-du_s")==0 || strcmp(cmd,"-du_si")==0) {
   ret= Xorriso_option_lsi(xorriso, argc, argv, idx, (strlen(cmd)<5)|4);

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

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

 } else if(strcmp(cmd,"-f")==0) {
   ret= Xorriso_option_f(xorriso, 0);

 } else if(strcmp(cmd,"-find")==0 || strcmp(cmd,"-findi")==0) {
   (*idx)++;
   ret= Xorriso_option_findi(xorriso, arg1, 0);

 } else if(strcmp(cmd,"-findx")==0) {
   (*idx)++;
   ret= Xorriso_option_findx(xorriso, arg1, 0);

 } 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,"-gid")==0) {
   (*idx)++;
   ret= Xorriso_option_gid(xorriso,arg1,0);

 } else if(strcmp(cmd,"-graft-points")==0 || strcmp(cmd,"-graft_points")==0) {
   ret= Xorriso_option_graft_points(xorriso, 0);

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

 } 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,"-J")==0) {
   ret= Xorriso_option_j_capital(xorriso, 0);

 } else if(strcmp(cmd,"-ls")==0 || strcmp(cmd,"-lsi")==0 ||
           strcmp(cmd,"-ls_l")==0 || strcmp(cmd,"-ls_li")==0 ||
           strcmp(cmd,"-ls-l")==0 || strcmp(cmd,"-ls-li")==0) {
   ret= Xorriso_option_lsi(xorriso, argc, argv, idx, strlen(cmd)>4);

 } else if(strcmp(cmd,"-lsx")==0 || strcmp(cmd,"-ls_lx")==0
           || strcmp(cmd,"-ls-lx")==0) {
   (*idx)++;
   ret= Xorriso_option_lsx(xorriso, arg1,strlen(cmd)>4);

 } else if(strcmp(cmd,"-logfile")==0) {
   (*idx)+= 2;
   ret= Xorriso_option_logfile(xorriso, arg1, arg2, 0);
   
 } else if(strcmp(cmd,"-mark")==0) {
   (*idx)++;
   ret= Xorriso_option_mark(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,"-options_from_file")==0) {
   (*idx)++;
   ret= Xorriso_option_options_from_file(xorriso,arg1,0);
   if(ret==3)
     goto ex;

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

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

 } 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,"-path-list")==0 || strcmp(cmd,"-path_list")==0) {
   (*idx)++;
   ret= Xorriso_option_path_list(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 || 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,"-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,"-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,"-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_rmdiri(xorriso, argc, argv, idx, 0);

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

 } else if(strcmp(cmd,"-speed")==0) {
   (*idx)++;
   ret= Xorriso_option_speed(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,"-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. */
   char line[4096],**hargv= NULL;
   int hargc, i;

   printf("XORRISO: -test : enter a line for test parsing\n");
   ret= Xorriso_dialog_input(xorriso,line,sizeof(line),4);
   if(ret<=0)
     goto ex;
   ret= Sfile_make_argv(xorriso->progname, line, &hargc, &hargv, 4|8);
   if(ret<=0) {
     fprintf(stderr, "--- Malformed quotation marking encountered\n");
     goto ex;
   }
   for(i=0; i<hargc; i++) {
     sprintf(xorriso->result_line,"%d : |%s|\n", i, hargv[i]);
     ret= Xorriso_result(xorriso,0);
     if(ret<=0)
       goto ex;
   }
   Sfile_make_argv(xorriso->progname, line, &hargc, &hargv, 2);

 } 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,"-V")==0) {
   (*idx)++;
   ret= Xorriso_option_v_capital(xorriso,arg1,0);

 } 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,"--")==0){
   /* tis ok */;

 } else if(cmd[0]=='-') {
unknown_option:;
   sprintf(xorriso->info_text,
           "=== Not a known option:\n");
   sprintf(xorriso->info_text+strlen(xorriso->info_text),
           "===  '%s'\n",cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}

 } else {
   goto unknown_option;

   /* >>> ??? pathspecs for option -add */;

   sprintf(xorriso->info_text, "Ignored argument : '%s'", cmd);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
 }

 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,1);
 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|8);
 if(ret<=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.lf 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,1);
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];

 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)
 break;
   xorriso->did_something_useful= 1;
 }
 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;
 char *cmd, *arg1;

 for(i=1+(flag&1);i<argc;i++) {
   cmd= argv[i];
   arg1= "";
   if(i+1<argc)
     arg1= argv[i+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;
       return(0);
     } else if(strcmp(cmd,"-help")==0) {
       Xorriso_option_help(xorriso,0);
       xorriso->did_something_useful= 1;
       return(0);
     } else if(strcmp(cmd,"-version")==0) {
       Xorriso_option_version(xorriso, 0);
       xorriso->did_something_useful= 1;
       return(0);
     }
   } else if(strcmp(cmd,"-no_rc")==0) {
     ret= Xorriso_option_no_rc(xorriso, 0);
     if(ret<=0)
       return(ret);
   }
 }
 return(1);
}


/** Load content startup files into preskin cache */
int Xorriso_read_rc(struct XorrisO *xorriso, int flag)
{
 int ret,i;

 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);
 }
 return(1);
}


#ifdef Xorriso_with_maiN

int main(int argc, char **argv)
{

#else

int Xorriso_main(int argc, char **argv)
{

#endif /* Xorriso_with_maiN */

 int ret,i;
 struct XorrisO *xorriso= NULL;

 if(argc<2) {
   fprintf(stderr,
       "xorriso %s : RockRidge filesystem manipulator, libburnia project.\n\n",
       PROG_VERSION);
   fprintf(stderr,"usage : %s [options]\n",
           argv[0]);
   fprintf(stderr,"        More is told by option -help\n");
   exit(2);
 }
 ret= Xorriso_new(&xorriso,argv[0],0);
 if(ret<=0) {
   fprintf(stderr,"Creation of XorrisO object failed. (not enough memory ?)\n");
   exit(3);
 }

 /* The prescan of arguments performs actions which have to happen before
    the normal processing of startup files and arguments. Currently:
     -no_rc and single-argument runs like  -help or -version.
 */
 ret= Xorriso_prescan_args(xorriso,argc,argv,0);
 if(ret==0)
   goto end_sucessfully;
 if(ret<0)
   exit(5);

 ret= Xorriso_startup_libraries(xorriso, 0);
 if(ret<=0)
   exit(4);
 Xorriso_process_msg_queues(xorriso, 0);

 /* Interpret startup file */
 if(!xorriso->no_rc) {
   ret= Xorriso_read_rc(xorriso, 0);
   if(ret==3)
     goto end_sucessfully;
   if(ret<=0)
     exit(5);
 }

 /* Interpret program arguments */
 i= 1;
 ret= Xorriso_interpreter(xorriso,argc,argv,&i,0);
 if(ret==3)
   goto end_sucessfully;
 if(ret<=0)
   exit(5);
 
 if(xorriso->dialog) {
   ret= Xorriso_dialog(xorriso,0);
   if(ret<=0)
     exit(6);
 }
end_sucessfully:;
 Xorriso_process_msg_queues(xorriso, 0);
 Xorriso_destroy(&xorriso,0);
 exit(0);
}