Implemented oncatenation of split files during -cpx

xorriso/xorriso.1

@@ -1603,7 +1603,7 @@ pseudo-drives or as log files.
 But its alter ego, osirrox, is able to extract file objects
 from ISO images and to create, overwrite, or delete file objects on disk.
 .TP
-\fB\-osirrox\fR "on"|"device_files"|"off"
+\fB\-osirrox\fR ["on"|"device_files"|"off"][:"concat_split_on"|"concat_split_off"]
 Setting "off" disables disk filesystem manipulations. This is the default
 unless the program was started with leafname "osirrox". Elsewise
 the capability to restore files can be enabled explicitly by -osirrox "on".
@@ -1618,6 +1618,11 @@ are ignored during restore operations.
 Due to a bug of previous versions, device files from previous sessions might
 have been altered to major=0, minor=1. So this combination does not get
 restored.
+.br
+"concat_split_on" is default. It enables restoring of split file directories
+as data files if the directory contains a complete  collection of -cut_out
+part files. With "concat_split_off" such directories are handled as any
+other ISO image directory.
 .TP
 \fB\-cpx\fR iso_rr_path [***] disk_path
 Extract single leaf file objects from the ISO image and store them under
@@ -1628,6 +1633,10 @@ created. The extracted files get installed in it with the same leafnames.
 Missing directory components in disk_path will get created, if possible.
 Disk file exclusions are in effect. If this is undesired then perform
 -not_mgt "off" first.
+.br
+Directories are allowed as iso_rr_path only with -osirrox "concat_split_on"
+and only if they actually represent a complete collection of -cut_out split
+file parts.
 .TP
 .B Command compatibility emulations:
 .PP

xorriso/xorriso.c

@@ -2460,6 +2460,32 @@ int Splitpart__compose(char *adr, int partno, int total_parts,
 }
 
 
+int Splitparts_cmp(const void *v1, const void *v2)
+{
+ struct SplitparT *p1, *p2;
+
+ p1= (struct SplitparT *) v1;
+ p2= (struct SplitparT *) v2;
+ 
+ if(p1->partno>p2->partno)
+   return(1);
+ if(p1->partno<p2->partno)
+   return(-1);
+ if(p1->offset>p2->offset)
+   return(1);
+ if(p1->offset<p2->offset)
+   return(-1);
+ return(0);
+}
+
+
+int Splitparts_sort(struct SplitparT *o, int count, int flag)
+{
+ qsort(o, (size_t) count, sizeof(struct SplitparT), Splitparts_cmp);
+ return(1);
+}
+
+
 /* ---------------------------- End SplitparT ------------------------- */
 
 /* ------------------------------ ExclusionS ------------------------------ */
@@ -2795,6 +2821,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->patch_isolinux_image= 0;
  m->allow_graft_points= 0;
  m->allow_restore= 0;
+ m->do_concat_split= 1;
  m->dialog= 0;
  m->search_mode= 0;
  m->structured_search= 1;
@@ -3902,10 +3929,12 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
    Xorriso_status_result(xorriso,filter,fp,flag&2);
  }
 
- is_default= (xorriso->allow_restore==0);
+ is_default= (xorriso->allow_restore==0 && xorriso->do_concat_split==1);
- sprintf(line,"-osirrox %s\n",
+ sprintf(line,"-osirrox %s:%s\n",
-    xorriso->allow_restore ? xorriso->allow_restore==2 ? "device_files" : "on"
+         xorriso->allow_restore ? xorriso->allow_restore==2 ?
-                           : "off");
+                                                 "device_files" : "on" : "off",
+         xorriso->do_concat_split ? "concat_split_on" : "concat_split_off");
+ 
  if(!(is_default && no_defaults))
    Xorriso_status_result(xorriso,filter,fp,flag&2);
 
@@ -4644,7 +4673,7 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *disk_adr,
                       &offset, &bytes, &total_bytes, 0);
        strcpy(part_path, iso_adr);
        if(Sfile_add_to_path(part_path, part_name, 0)<=0) {
-         Xorriso_much_too_long(xorriso, strlen(iso_adr)+strlen(part_path)+1,
+         Xorriso_much_too_long(xorriso, strlen(iso_adr)+strlen(part_name)+1,
                                2);
          {ret= -1; goto ex;}
        }
@@ -8693,6 +8722,14 @@ int Xorriso_option_cpx(struct XorrisO *xorriso, int argc, char **argv,
  char **optv= NULL;
  struct stat stbuf;
 
+ ret= Xorriso_cpmv_args(xorriso, "-cpx", argc, argv, idx,
+                        &optc, &optv, eff_dest, 1|4);
+ if(ret<=0)
+   goto ex;
+ if(ret==2) {
+   is_dir= 1;
+   strcpy(dest_dir, eff_dest);
+ }
  if(!xorriso->allow_restore) {
    sprintf(xorriso->info_text,
           "-cpx: image-to-disk copies are not enabled by option -osirrox");
@@ -8705,14 +8742,6 @@ int Xorriso_option_cpx(struct XorrisO *xorriso, int argc, char **argv,
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
    ret= 0; goto ex;
  }
- ret= Xorriso_cpmv_args(xorriso, "-cpx", argc, argv, idx,
-                        &optc, &optv, eff_dest, 1|4);
- if(ret<=0)
-   goto ex;
- if(ret==2) {
-   is_dir= 1;
-   strcpy(dest_dir, eff_dest);
- }
 
  /* Perform copying */
  Xorriso_pacifier_reset(xorriso, 0);
@@ -8726,10 +8755,18 @@ int Xorriso_option_cpx(struct XorrisO *xorriso, int argc, char **argv,
    if(ret==-1)
      goto problem_handler;
    if(S_ISDIR(stbuf.st_mode)) {
-     sprintf(xorriso->info_text, "-cpx: May not copy directory %s",
+     /* only allow directories if they actually represent split data files */
-             Text_shellsafe(eff_origin, sfe, 0));
+     ret= 0;
-     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+     if(xorriso->do_concat_split)
-     ret= 0; goto problem_handler;
+       ret= Xorriso_is_split(xorriso, eff_origin, NULL, 2);
+     if(ret<0)
+       goto problem_handler;
+     if(ret==0) {
+       sprintf(xorriso->info_text, "-cpx: May not copy directory %s",
+               Text_shellsafe(eff_origin, sfe, 0));
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+       ret= 0; goto problem_handler;
+     }
    }
 
    if(is_dir) {
@@ -9684,8 +9721,8 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "  -compare_r disk_path iso_rr_path ",
 "                 Like -compare but affecting all files below directories.",
 "",
-"Restore options (copying file objects from ISO image to disk filesystem):",
+"Restore options which copy file objects from ISO image to disk filesystem:",
-"  -osirrox \"on\"|\"device_files\"|\"off\"",
+"  -osirrox \"on\"|\"device_files\"|\"off\":\"concat_split_on\"|\"concat_split_off\"",
 "                 By default \"off\" the inverse operation of xorriso from ISO",
 "                 image to disk filesystem is disabled. \"on\" allows xorriso",
 "                 to create, overwrite, delete files in the disk filesystem.", 
@@ -10567,16 +10604,34 @@ ex:;
 /* Option -osirrox "on"|"off" */
 int Xorriso_option_osirrox(struct XorrisO *xorriso, char *mode, int flag)
 {
- if(strcmp(mode, "off")==0)
+ int l;
-   xorriso->allow_restore= 0;
+ char *npt, *cpt;
- else if(strcmp(mode, "device_files")==0)
+
-   xorriso->allow_restore= 2;
+ npt= cpt= mode;
- else if(strcmp(mode, "on")==0 || mode[0]==0)
+ for(cpt= mode; npt!=NULL; cpt= npt+1) {
-   xorriso->allow_restore= 1;
+   npt= strchr(cpt,':');
- else {
+   if(npt==NULL)
-   sprintf(xorriso->info_text, "-osirrox: unknown mode '%s'", mode);
+     l= strlen(cpt);
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+   else
-   return(0);
+     l= npt-cpt;
+   if(l==0 && mode[0]!=0)
+     goto unknown_mode;
+   if(strncmp(cpt, "off", l)==0)
+     xorriso->allow_restore= 0;
+   else if(strncmp(cpt, "device_files", l)==0)
+     xorriso->allow_restore= 2;
+   else if(strncmp(cpt, "on", l)==0 || mode[0]==0)
+     xorriso->allow_restore= 1;
+   else if(strncmp(cpt, "concat_split_on", l)==0)
+     xorriso->do_concat_split= 1;
+   else if(strncmp(cpt, "concat_split_off", l)==0)
+     xorriso->do_concat_split= 0;
+   else {
+unknown_mode:;
+     sprintf(xorriso->info_text, "-osirrox: unknown mode '%s'", cpt);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+     return(0);
+   }
  }
  sprintf(xorriso->info_text,
          "%s copying of file objects from ISO image to disk filesystem\n",

xorriso/xorriso_private.h

@@ -161,6 +161,9 @@ struct XorrisO { /* the global context of xorriso */
  int allow_graft_points;
 
  int allow_restore; /* 0= disallowed, 1=allowed, 2=device files allowed */
+ int do_concat_split;  /* 1= restore complete split file directories as
+                             regular files
+                        */
 
  int dialog;
 
@@ -534,6 +537,8 @@ int Splitpart__parse(char *name, int *partno, int *total_parts,
 int Splitpart__compose(char *adr, int partno, int total_parts,
                        off_t offset, off_t bytes, off_t total_bytes, int flag);
 
+int Splitparts_sort(struct SplitparT *o, int count, int flag);
+
 struct LstrinG {
   char *text;
   struct LstrinG *prev,*next;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2008.05.27.201513"
+#define Xorriso_timestamP "2008.05.31.174045"

xorriso/xorrisoburn.c

@@ -69,8 +69,6 @@ int Xorriso_tree_graft_node(struct XorrisO *xorriso, IsoImage *volume,
                             off_t offset, off_t cut_size,
                             IsoNode **node, int flag);
 
-int Xorriso_is_split(struct XorrisO *xorriso, IsoNode *node, int flag);
-
 
 #define LIBISO_ISDIR(node) (iso_node_get_type(node) == LIBISO_DIR)
 #define LIBISO_ISREG(node) (iso_node_get_type(node) == LIBISO_FILE)
@@ -1949,7 +1947,7 @@ cannot_lstat:;
      target_is_dir= LIBISO_ISDIR(node);
      target_is_split= 0;
      if(target_is_dir)
-       target_is_split= Xorriso_is_split(xorriso, node, 0);
+       target_is_split= Xorriso_is_split(xorriso, "", (void *) node, 1);
 
      if(!((target_is_dir && !target_is_split) && source_is_dir)) {
        Xorriso_process_msg_queues(xorriso,0);
@@ -2264,7 +2262,7 @@ int Xorriso_graft_in(struct XorrisO *xorriso, void *boss_iter,
 
      target_is_split= 0;
      if(target_is_dir) 
-       target_is_split= Xorriso_is_split(xorriso, node, 0);
+       target_is_split= Xorriso_is_split(xorriso, "", (void *) node, 1);
 
      if(!((target_is_dir && !target_is_split) && source_is_dir)) {
        Xorriso_process_msg_queues(xorriso,0);
@@ -2489,9 +2487,10 @@ int Xorriso_restore_properties(struct XorrisO *xorriso, char *disk_path,
 }
 
 
-/* @param flag >>> bit0= cut_out mode : base on leaf parent directory
+/* @param flag
                bit1= minimal transfer: access permissions only
                bit2= keep directory open: keep owner, allow rwx for owner
+                     push to xorriso->perm_stack
 */
 int Xorriso_restore_implicit_properties(struct XorrisO *xorriso,
           char *full_disk_path, char *disk_path, char *full_img_path, int flag)
@@ -2516,10 +2515,7 @@ int Xorriso_restore_implicit_properties(struct XorrisO *xorriso,
  nfdc= Sfile_count_components(nfd, 0);
  ndc= Sfile_count_components(nd, 0);
  nfic= Sfile_count_components(nfi, 0);
-
+ d= nfdc-ndc;
- /* >>> ??? (flag&1) */
- d= nfdc-(flag&1)-ndc;
-
  if(d<0)
    return(-1);
  if(d>nfic)
@@ -2535,38 +2531,48 @@ int Xorriso_restore_implicit_properties(struct XorrisO *xorriso,
  ret= Xorriso_fake_stbuf(xorriso, nfi, &stbuf, &node, 0);
  if(ret<=0)
    return(0);
- ret= Xorriso_restore_properties(xorriso, nfd, node, !!(flag&2));
+ if(flag&4) {
+   ret= Permstack_push(&(xorriso->perm_stack), nd, &stbuf, 0);
+   if(ret<=0) {
+     Xorriso_msgs_submit(xorriso, 0, nfd, 0, "ERRFILE", 0);
+     strcpy(xorriso->info_text,
+            "Cannot memorize permissions for disk directory");
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
+     return(-1);
+   }
+ }
+ ret= Xorriso_restore_properties(xorriso, nd, node, !!(flag&2));
  if(ret<=0)
    return(ret);
  sprintf(xorriso->info_text,
          "Restored properties for %s", Text_shellsafe(nd, sfe, 0));
  sprintf(xorriso->info_text+strlen(xorriso->info_text),
          " from %s", Text_shellsafe(nfi, sfe, 0));
-
+ Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
- /* >>> ??? (flag&1) */
- if(!((flag&1) && d==0))
-
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
  return(1);
 }
 
 
 /* @param flag bit0= Minimal transfer: access permissions only
+               bit1= offset and bytes is valid for writing to regular file
                bit2= This is not a parameter. Do not report if ignored
+               bit3= do not restore properties
    @return <0 severe error , 0 failure , 1 success ,
            2 regularly not installed (disallowed device, UNIX domain socket)
 */
 int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
-                              char *img_path, char *disk_path, int flag)
+                              char *img_path, char *disk_path,
+                              off_t offset, off_t bytes, int flag)
 {
- int ret= 0, write_fd= -1, wanted, wret;
+ int ret= 0, write_fd= -1, wanted, wret, open_flags;
  char *what= "[unknown filetype]", sfe[5*SfileadrL], sfe2[5*SfileadrL];
  char buf[32*1024];
  char *link_target;
- off_t todo, size;
+ off_t todo, size, seek_ret;
  void *data_stream= NULL;
  mode_t mode;
  dev_t dev= 0;
+ struct stat stbuf;
 
  if(LIBISO_ISDIR(node)) {
    what= "directory";
@@ -2577,13 +2583,38 @@ int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
 
    /* >>> need to exploit node rather  than img_path */
    ret= Xorriso_iso_file_open(xorriso, img_path, &data_stream, 0);
-
    if(ret<=0)
      goto ex;
-   write_fd= open(disk_path,O_WRONLY|O_EXCL|O_CREAT);
+
+   open_flags= O_WRONLY|O_CREAT;
+   if(flag&2) {
+     ret= stat(disk_path, &stbuf);
+     if(ret!=-1 && !S_ISREG(stbuf.st_mode)) {
+       sprintf(xorriso->info_text,
+      "Restore offset demanded. But filesystem path leads to non-data file %s",
+               Text_shellsafe(disk_path, sfe, 0));
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
+       goto cannot_restore;
+     }
+   }
+   if(offset==0 || !(flag&2))
+     open_flags|= O_EXCL;
+   write_fd= open(disk_path, open_flags, S_IRUSR|S_IWUSR);
    if(write_fd==-1)
      goto cannot_restore;
-   todo= size= iso_file_get_size((IsoFile *) node);
+
+   if(flag&2) {
+     todo= size= bytes;
+     seek_ret= lseek(write_fd, offset, SEEK_SET);
+     if(seek_ret == -1) {
+       sprintf(xorriso->info_text,
+               "Cannot address byte %.f in filesystem path %s",
+               (double) offset, Text_shellsafe(disk_path, sfe, 0));
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
+       goto cannot_restore;
+     }
+   } else
+     todo= size= iso_file_get_size((IsoFile *) node);
    while(todo>0) {
      wanted= sizeof(buf);
      if(wanted>todo)
@@ -2687,7 +2718,7 @@ cannot_restore:;
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
    ret= 0; goto ex;
  }
- if(LIBISO_ISLNK(node))
+ if((flag&8) || LIBISO_ISLNK(node))
    ret= 1;
  else
    ret= Xorriso_restore_properties(xorriso, disk_path, node, flag&1);
@@ -2717,23 +2748,26 @@ int Xorriso_restore(struct XorrisO *xorriso,
 {
  IsoImage *volume;
  char path[SfileadrL], *apt, *npt, sfe[5*SfileadrL], sfe2[5*SfileadrL];
- char *img_path_pt;
+ char *img_path_pt, *part_name;
- IsoNode *node= NULL;
+ IsoNode *node= NULL, *part_node, *first_part_node;
- int done= 0, is_dir= 0, ret, target_is_dir, source_is_dir, stbuf_ret;
+ int done= 0, is_dir= 0, ret, target_is_dir, source_is_dir, stbuf_ret, hret;
+ int leaf_is_split= 0, source_is_split= 0, split_count, partno, total_parts, i;
+ off_t offset, bytes, total_bytes;
  struct stat stbuf, target_stbuf;
  struct PermiteM *perm_stack_mem;
+ struct SplitparT *split_parts= NULL;
 
  perm_stack_mem= xorriso->perm_stack;
 
  ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&4));
  if(ret<0)
-   return(ret);
+   goto ex;
  if(ret>0)
-   return(3*!!(flag&16));
+   {ret= 3*!!(flag&16); goto ex;}
 
  ret= Xorriso_get_volume(xorriso, &volume, 0);
  if(ret<=0)
-   return(ret);
+   goto ex;
 
  strncpy(path, disk_path, sizeof(path)-1);
  path[sizeof(path)-1]= 0;
@@ -2765,17 +2799,11 @@ int Xorriso_restore(struct XorrisO *xorriso,
             "Cannot determine attributes of (ISO) source file %s",
             Text_shellsafe(img_path, sfe, 0));
      Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
-     return(0);
+     ret= 0; goto ex;
    }
-
+   if(is_dir && xorriso->do_concat_split)
-#ifdef Osirrox_not_yeT
+     leaf_is_split= Xorriso_identify_split(xorriso, img_path, node,
-     /* >>> */
+                                      &split_parts, &split_count, &stbuf, 1|2);
- int source_is_split= 0;
-
-   if(is_dir) 
-     source_is_split= Xorriso_is_split(xorriso, node, 0);
-#endif
-
  }
  for(npt= apt; !done; apt= npt+1) {
    npt= strchr(apt, '/');
@@ -2792,28 +2820,23 @@ int Xorriso_restore(struct XorrisO *xorriso,
  continue;
    }
    source_is_dir= (is_dir || (flag&1) || !done);
+   source_is_split= done && leaf_is_split;
    stbuf_ret= stat(path, &target_stbuf);
    if(stbuf_ret!=-1) {
      target_is_dir= S_ISDIR(target_stbuf.st_mode);
-
+     if(!(target_is_dir && (source_is_dir && !source_is_split))) {
-#ifdef Osirrox_not_yeT
-     /* >>> Take into respect source_is_split */
-#endif
-     if((!target_is_dir) && source_is_dir) {
-
        Xorriso_process_msg_queues(xorriso,0);
-
        /* handle overwrite situation */
        if(xorriso->do_overwrite==1 ||
           (xorriso->do_overwrite==2 && !target_is_dir)) {
          ret= Xorriso_rmx(xorriso, (off_t) 0, path, 1|8);
          if(ret<=0)
-           return(ret);
+           goto ex;
          if(ret==3) {
            sprintf(xorriso->info_text, "User revoked restoring of: %s",
                    Text_shellsafe(disk_path, sfe, 0));
            Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
-           return(3*!!(flag&16));
+           {ret= 3*!!(flag&16); goto ex;}
          }
          stbuf_ret= -1;
          goto handle_path_node;
@@ -2823,12 +2846,13 @@ int Xorriso_restore(struct XorrisO *xorriso,
                "While restoring '%s' : '%s' exists and may not be overwritten",
                disk_path, path);
        Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-       return(0);
+       {ret= 0; goto ex;}
      }
    }
 
 handle_path_node:;
-   if(stbuf_ret==-1 && source_is_dir) { /* make a directory */
+   if(stbuf_ret==-1 && (source_is_dir && !source_is_split)) {
+                                                         /* make a directory */
      ret= mkdir(path, 0777);
      if(ret==-1) {
        Xorriso_process_msg_queues(xorriso,0);
@@ -2838,22 +2862,14 @@ handle_path_node:;
        sprintf(xorriso->info_text,
               "While restoring '%s' : could not insert '%s'", disk_path, path);
        Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-       return(0);
+       {ret= 0; goto ex;}
      }
      if(!done) {
-       ret= Permstack_push(&(xorriso->perm_stack), path, &stbuf, 0);
-       if(ret<=0) {
-         Xorriso_msgs_submit(xorriso, 0, disk_path, 0, "ERRFILE", 0);
-         Xorriso_report_iso_error(xorriso, disk_path, ret,
-              "Cannot memorize permissions for disk directory", 0, "FATAL", 1);
-         return(-1);
-       }
        /* keep rwx for the owner */
        Xorriso_restore_implicit_properties(xorriso, disk_path, path,
                                            img_path, 4);
-                                                    /* >>> ???(flag&8) */
      }
-   } else if(source_is_dir) {
+   } else if(source_is_dir && !source_is_split) {
 
      /* >>> If owner: eventually try to obtain rwx-permssions, stack path */;
 
@@ -2864,7 +2880,7 @@ attach_source:;
      if(flag&1) {
        /* directory was created above */;
 
-     } else if(is_dir) {
+     } else if(is_dir && !source_is_split) {
        Xorriso_restore_properties(xorriso, disk_path, node, !!(flag&64));
 
 #ifdef Osirrox_not_yeT
@@ -2872,38 +2888,68 @@ attach_source:;
        /* >>> */
 
        if(!(flag&32)) {
-         ret= Xorriso_add_tree(xorriso, dir, img_path, disk_path, NULL,
+         ret= Xorriso_add_tree(xorriso, dir, img_path, path, NULL,
                                flag&2);
          if(ret<=0)
-           return(ret);
+           goto ex;
        }
 #endif
 
      } else {
+       if(source_is_split) {
+         /* map all files in directory img_path into regular file disk_path */
+
+         for(i=0 ; i<split_count; i++) {
+           Splitparts_get(split_parts, i, &part_name, &partno, &total_parts,
+                          &offset, &bytes, &total_bytes, 0);
+           strcpy(sfe2, img_path);
+           if(Sfile_add_to_path(sfe2, part_name, 0)<=0) {
+             Xorriso_much_too_long(xorriso, 
+                                   strlen(img_path)+strlen(part_name)+1, 2);
+             goto restoring_failed;
+           }
+           ret= Xorriso_node_from_path(xorriso, volume, sfe2, &part_node, 0);
+           if(ret<=0)
+             goto restoring_failed;
+           if(i==0)
+             first_part_node= part_node;
+           if(offset+bytes>total_bytes)
+             bytes= total_bytes-offset;
+           ret= Xorriso_tree_restore_node(xorriso, part_node, sfe2, path,
+                                          offset, bytes,
+                                          (!!(flag&64)) | 2 | (flag&4) | 8);
+           if(ret<=0)
+             goto restoring_failed;
+         }
+         Xorriso_restore_properties(xorriso, path, first_part_node,
+                                    !!(flag&64));
+ break;
 
 #ifdef Osirrox_not_yeT
 
-       if(resolve_link) {
+       } else if(resolve_link) {
          ret= Xorriso_resolve_link(xorriso, disk_path, resolved_disk_path, 0);
          if(ret<=0)
-           return(ret);
+           goto ex;
          disk_path_pt= resolved_disk_path;
-       } else
 
 #endif /* Osirrox_not_yeT */
 
+       } else
          img_path_pt= img_path;
 
        ret= Xorriso_tree_restore_node(xorriso, node, img_path_pt, path,
+                                      (off_t) 0, (off_t) 0,
                                       (flag&4) | !!(flag&64));
        if(ret<=0) {
+restoring_failed:;
          sprintf(xorriso->info_text, "Restoring failed:  %s = %s",
              Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
          Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-         return(0);
+         {ret= 0; goto ex;}
        }
        if(ret==2)
-         return(3);
+         {ret= 3; goto ex;}
        xorriso->pacifier_count++;
        if(xorriso->pacifier_count%100 && !(flag&2))
          Xorriso_pacifier_callback(xorriso, "files restored",
@@ -2914,13 +2960,16 @@ attach_source:;
      *npt= '/';
  }
  Xorriso_process_msg_queues(xorriso,0);
-
+ ret= 1 + (is_dir && !leaf_is_split); 
+ex:;
  /* restore exact access permissions of stacked paths */
- ret= Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso,
+ hret= Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso,
-                    !!(flag&64));
+                     !!(flag&64));
- if(ret<=0)
+ if(hret<=0 && hret<ret)
-   return(ret);
+   ret= hret;
- return(1+!!is_dir);
+ if(split_parts!=NULL)
+   Splitparts_destroy(&split_parts, split_count, 0);
+ return(ret);
 }
 
 
@@ -5872,16 +5921,18 @@ int Xorriso_iso_file_close(struct XorrisO *xorriso, void **stream, int flag)
 
 
 /* @param flag bit0= in_node is valid, do not resolve iso_adr
+               bit1= insist in complete collection of part files
 */
 int Xorriso_identify_split(struct XorrisO *xorriso, char *iso_adr,
                            void *in_node,
                            struct SplitparT **parts, int *count,
                            struct stat *total_stbuf,  int flag)
 {
- int ret, i;
+ int ret, i, incomplete= 0, overlapping= 0;
  int partno, total_parts, first_total_parts= -1;
  off_t offset, bytes, total_bytes, first_total_bytes= -1, first_bytes= -1;
- off_t size;
+ off_t size, covered;
+
  IsoImage *volume;
  IsoDir *dir_node;
  IsoDirIter *iter= NULL;
@@ -5970,14 +6021,24 @@ cannot_iter:;
      goto ex;
  }
 
- /* >>> ??? sort list ? */
+ Splitparts_sort(*parts, *count, 0);
- for(i= 0; i<*count; i++) {
-   /* >>> check for disjointness */;
- }
 
+ covered= 0;
+ for(i= 0; i<*count; i++) {
+   Splitparts_get(*parts, i, &name, &partno, &total_parts, &offset, &bytes,
+                  &total_bytes, 0);
+   if(offset>covered)
+     incomplete= 1;
+   else if(offset<covered)
+     overlapping= 1;
+   if(offset+bytes > covered)
+     covered= offset+bytes;
+ }
+ if(total_bytes>covered)
+   incomplete= 1;
  memcpy(total_stbuf, &first_stbuf, sizeof(struct stat));
  total_stbuf->st_size= total_bytes;
- ret= 1;
+ ret= !(overlapping || ((flag&2)&&incomplete));
 ex:;
  if(iter!=NULL)
    iso_dir_iter_free(iter);
@@ -5985,14 +6046,18 @@ ex:;
 }
 
 
-int Xorriso_is_split(struct XorrisO *xorriso, IsoNode *node, int flag)
+/* @param flag bit0= node is valid, do not resolve path
+               bit1= insist in complete collection of part files
+*/
+int Xorriso_is_split(struct XorrisO *xorriso, char *path, void *node,
+                     int flag)
 {
  struct SplitparT *split_parts= NULL;
  int split_count= 0, ret;
  struct stat stbuf;
 
- ret= Xorriso_identify_split(xorriso, "", (void *) node, &split_parts,
+ ret= Xorriso_identify_split(xorriso, path, node, &split_parts,
-                             &split_count, &stbuf, 1);
+                             &split_count, &stbuf, flag&1);
  if(split_parts!=NULL)
    Splitparts_destroy(&split_parts, split_count, 0);
  return(ret>0);

xorriso/xorrisoburn.h

@@ -225,8 +225,14 @@ int Xorriso_identify_split(struct XorrisO *xorriso, char *iso_adr,
                            struct SplitparT **parts, int *count,
                            struct stat *total_stbuf, int flag);
 
-/*
+/* @param flag bit0= node is valid, do not resolve path
-   @param flag
+               bit1= insist in complete collection of part files
+*/
+int Xorriso_is_split(struct XorrisO *xorriso, char *path, void *node,
+                     int flag);
+
+
+/* @param flag
            >>> bit0= mkdir: graft in as empty directory, not as copy from iso
                bit1= do not report copied files
                bit2= -follow, -not_*: this is not a command parameter