From 0be7fe3329e2931202c1dcb05a45b9b5ae6e1d2d Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Thu, 4 Sep 2008 10:02:58 +0000
Subject: [PATCH] New option -check_media_defaults

---
 xorriso/xorriso.1           |  29 ++-
 xorriso/xorriso.c           | 401 ++++++++++++++++++++++++++----------
 xorriso/xorriso.h           |   8 +
 xorriso/xorriso_private.h   |   5 +-
 xorriso/xorriso_timestamp.h |   2 +-
 xorriso/xorrisoburn.c       |  11 +-
 6 files changed, 333 insertions(+), 123 deletions(-)

diff --git a/xorriso/xorriso.1 b/xorriso/xorriso.1
index 7e575428..7d9f25b7 100644
--- a/xorriso/xorriso.1
+++ b/xorriso/xorriso.1
@@ -1735,9 +1735,25 @@ Try to read data blocks from the indev drive, eventually copy them to a
 disk file, and finally report about the encountered quality. Several options
 may be used to modify the default behavior.
 .br
-An option consists of a keyword, a "=" character, and a value.
+The options given with this command override the default settings which
+may have been changed by option -check_media_defaults. See there for a
+description of options.
 .br
-Default is:
+The result list tells intervals of 2 KiB blocks with start address, number
+of blocks and quality. Qualities which begin with "+" are
+supposed to be valid readable data. Qualities with "-" are no valid data.
+.br
+Alternatively it is possible to report damaged files rather than blocks.
+.TP
+\fB\-check_media_defaults\fR [option [option ...]] --
+Preset options for runs of -check_media, -extract_cut and best_effort
+file extraction. Eventual options given with -check_media will override the
+preset options. -extract_cut will override some options automatically.
+.br
+An option consists of a keyword, a "=" character, and a value. Options
+may override each other. So their sequence matters.
+.br
+The default setting at program start is:
 .br
 use=indev what=tracks min_lba=-1 max_lba=-1 retry=default
 time_limit=28800 item_limit=100000
@@ -1746,11 +1762,9 @@ abort_file=/var/opt/xorriso/do_abort_check_media
 .br
 data_to='' sector_map='' map_with_volid=off patch_lba0=off report=blocks
 .br
-Non-default settings:
+Option "reset=now" restores these startup defaults.
 .br
-The result list tells intervals of 2 KiB blocks with start address, number
-of blocks and quality. Qualities which begin with "+" are
-supposed to be valid readable data. Qualities with "-" are no valid data.
+Non-default options are:
 .br
 "report=files" lists the files which use damaged blocks (not with use=outdev).
 The format is like with find -exec report_damage.
@@ -1887,7 +1901,8 @@ The data bytes of iso_rr_path need to be already stored in the loaded ISO image
 and byte_offset must be a multiple of 2048, e.g. an integer with suffix
 s, m, or g.
 .br
-This option is implemented by a special run of -check_media.
+This option is implemented by a special run of -check_media and governed by
+most of the options which can be set iby -check_media_defaults.
 Its main purpose is to allow handling of large files if they are not supported
 by mount -t iso9660 and if the reading system is unable to buffer them as
 a whole.
diff --git a/xorriso/xorriso.c b/xorriso/xorriso.c
index 8cbfc9fc..a9418051 100644
--- a/xorriso/xorriso.c
+++ b/xorriso/xorriso.c
@@ -3253,6 +3253,32 @@ int Checkmediajob_destroy(struct CheckmediajoB **o, int flag)
 }
 
 
+int Checkmediajob_copy(struct CheckmediajoB *from, struct CheckmediajoB *to,
+                       int flag)
+{  
+ to->use_dev= from->use_dev;
+ to->min_lba= from->min_lba;
+ to->max_lba= from->max_lba;
+ to->min_block_size= from->min_block_size;
+ to->mode= from->mode;
+ to->time_limit= from->time_limit;
+ to->item_limit= from->item_limit;
+ strcpy(to->abort_file_path, from->abort_file_path);
+ strcpy(to->data_to_path, from->data_to_path);
+ /* not copied: data_to_fd */
+ to->data_to_offset= from->data_to_offset;
+ to->data_to_limit= from->data_to_limit;
+ to->patch_lba0= from->patch_lba0;
+ to->patch_lba0_msc1= from->patch_lba0_msc1;
+ strcpy(to->sector_map_path, from->sector_map_path);
+ /* not copied: sector_map */
+ to->map_with_volid= from->map_with_volid;
+ to->retry= from->retry;
+ to->report_mode= from->report_mode;
+ return(1);
+}
+
+
 /* -------------------------- End CheckmediajoB --------------------------- */
 
 /* ------------------------------- Xorriso -------------------------------- */
@@ -3327,6 +3353,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->volset_change_pending= 0;
  m->no_volset_present= 0;
  m->in_sector_map= NULL;
+ m->check_media_default= NULL;
  m->outdev[0]= 0;
  m->out_drive_handle= NULL;
  m->dev_fd_1= -1;
@@ -4595,6 +4622,217 @@ bit1= do only report to fp
 }
 
 
+int Xorriso_check_media_setup_job(struct XorrisO *xorriso,
+                               struct CheckmediajoB *job,
+                               char **argv, int old_idx, int end_idx, int flag)
+{
+ int ret, i;
+ double num;
+ struct CheckmediajoB *default_job;
+
+ if(xorriso->check_media_default != NULL)
+   Checkmediajob_copy(xorriso->check_media_default, job, 0);
+ for(i= old_idx; i < end_idx; i++) {
+   if(strncmp(argv[i], "abort_file=", 11) == 0) {
+     ret= Sfile_str(job->abort_file_path, argv[i] + 11, 0);
+     if(ret <= 0)
+       goto ex;
+   } else if(strncmp(argv[i], "data_to=", 8) == 0) {
+     ret= Sfile_str(job->data_to_path, argv[i] + 8, 0);
+     if(ret <= 0)
+       goto ex;
+   } else if(strncmp(argv[i], "map_with_volid=", 15) == 0) {
+     if(strcmp(argv[i] + 15, "on") == 0)
+       job->map_with_volid= 1;
+     else if(strcmp(argv[i] + 15, "off") == 0)
+       job->map_with_volid= 0;
+     else
+       goto unknown_value;
+   } else if(strncmp(argv[i], "max_lba=", 8) == 0 ||
+      strncmp(argv[i], "min_lba=", 8) == 0) {
+     num= -1;
+     sscanf(argv[i] + 8, "%lf", &num);
+     if(num > 0x7fffffff || num < 0)
+       num= -1;
+     if(strncmp(argv[i], "max_lba=", 8) == 0)
+       job->max_lba= num;
+     else
+       job->min_lba= num;
+   } else if(strncmp(argv[i], "patch_lba0=", 11) == 0) {
+     job->patch_lba0_msc1= -1;
+     if(strcmp(argv[i] + 11, "on") == 0)
+       job->patch_lba0= 1;
+     else if(strcmp(argv[i] + 11, "off") == 0)
+       job->patch_lba0= 0;
+     else if(strcmp(argv[i] + 11, "force") == 0)
+       job->patch_lba0= 2;
+     else if(argv[i][11] >= '1' && argv[i][11] <= '9') {
+       num= -1;
+       sscanf(argv[i] + 11, "%lf", &num);
+       if(num > 0x7fffffff || num < 0)
+         goto unknown_value;
+       job->patch_lba0_msc1= num;
+       job->patch_lba0= (num >= 32) + (strstr(argv[i] + 11, ":force") != NULL);
+     } else 
+       goto unknown_value;
+   } else if(strncmp(argv[i], "report=", 7) == 0) {
+     if(strcmp(argv[i] + 7, "blocks") == 0)
+       job->report_mode= 0;
+     else if(strcmp(argv[i] + 7, "files") == 0)
+       job->report_mode= 1;
+     else if(strcmp(argv[i] + 7, "blocks_files") == 0)
+       job->report_mode= 2;
+     else
+       goto unknown_value;
+   } else if(strcmp(argv[i], "reset=now") == 0) {
+     ret= Checkmediajob_new(&default_job, 0);
+     if(ret <= 0) {
+       sprintf(xorriso->info_text,
+               "-check_media: Cannot reset optionis due to lack of resources");
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
+       ret= -1; goto ex;
+     }
+     Checkmediajob_copy(default_job, job, 0);
+     Checkmediajob_destroy(&default_job, 0);
+   } else if(strncmp(argv[i], "retry=", 6) == 0) {
+     if(strcmp(argv[i] + 6, "on") == 0)
+       job->retry= 1;
+     else if(strcmp(argv[i] + 6, "off") == 0)
+       job->retry= -1;
+     else if(strcmp(argv[i] + 6, "default") == 0)
+       job->retry= 0;
+     else
+       goto unknown_value;
+   } else if(strncmp(argv[i], "sector_map=", 11) == 0) {
+     ret= Sfile_str(job->sector_map_path, argv[i] + 11, 0);
+     if(ret <= 0)
+       goto ex;
+   } else if(strncmp(argv[i], "time_limit=", 11) == 0 ||
+             strncmp(argv[i], "item_limit=", 11) == 0 ) {
+     num= -1;
+     sscanf(argv[i] + 11, "%lf", &num);
+     if(num > 0x7fffffff || num < 0)
+       num= -1;
+     if(strncmp(argv[i], "time_limit=", 11) == 0)
+       job->time_limit= num;
+     else
+       job->item_limit= num;
+   } else if(strncmp(argv[i], "use=", 4) == 0) {
+     if(strcmp(argv[i] + 4, "outdev") == 0)
+       job->use_dev= 1;
+     else if(strcmp(argv[i] + 4, "indev") == 0)
+       job->use_dev= 0;
+     else if(strcmp(argv[i] + 4, "sector_map") == 0)
+       job->use_dev= 2;
+     else
+       goto unknown_value;
+   } else if(strncmp(argv[i], "what=", 5) == 0) {
+     if(strcmp(argv[i]+5, "tracks") == 0)
+       job->mode= 0;
+     else if(strcmp(argv[i]+5, "disc")== 0)
+       job->mode= 1;
+     else {
+unknown_value:;
+       sprintf(xorriso->info_text,
+               "-check_media: Unknown value with option %s", argv[i]);
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+       ret= 0; goto ex;
+     }
+   } else {
+     sprintf(xorriso->info_text, "-check_media: Unknown option '%s'", argv[i]);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+     ret= 0; goto ex;
+   }
+ }
+ ret= 1;
+ex:;
+ return(ret);
+}
+
+
+/* @param report Buffer of at least 10*SfileadrL
+   @param flag bit0= only report non-default settings
+   @return <=0 error , 1 ok , 2 with bit0: every option is on default setting
+*/
+int Xorriso_check_media_list_job(struct XorrisO *xorriso,
+                                 struct CheckmediajoB *job,
+                                 char *report, int flag)
+{
+ int all, ret;
+ struct CheckmediajoB *dflt= NULL;
+
+ all= !(flag&1);
+ report[0]= 0;
+ ret= Checkmediajob_new(&dflt, 0);
+ if(ret <= 0)
+   return(-1);
+ sprintf(report, "-check_media_defaults");
+ if(!all)
+   strcat(report, " reset=now");
+ if(all || job->use_dev != dflt->use_dev) 
+   sprintf(report + strlen(report), " use=%s",
+           job->use_dev == 1 ? "outdev" :
+           job->use_dev == 2 ? "sector_map" : "indev");
+ if(all || job->mode != dflt->mode)
+   sprintf(report + strlen(report), " what=%s",
+           job->mode == 1 ? "disc" : "tracks");
+ if(all || job->min_lba != dflt->min_lba)
+   sprintf(report + strlen(report), " min_lba=%d", job->min_lba);
+ if(all || job->max_lba != dflt->max_lba)
+   sprintf(report + strlen(report), " max_lba=%d", job->max_lba);
+ if(all || job->retry != dflt->retry)
+   sprintf(report + strlen(report), " retry=%s",
+           job->retry == 1 ? "on" : job->retry == -1 ? "off" : "default");
+ if(all || job->time_limit != dflt->time_limit)
+   sprintf(report + strlen(report), " time_limit=%d", job->time_limit);
+ if(all || job->item_limit != dflt->item_limit)
+   sprintf(report + strlen(report), " item_limit=%d", job->item_limit);
+ if(all || strcmp(job->abort_file_path, dflt->abort_file_path)) {
+   strcat(report, " abort_file=");
+   Text_shellsafe(job->abort_file_path, report + strlen(report), 0);
+ }
+ if(strlen(report) > 4 * SfileadrL)
+   {ret= 0; goto ex;}
+ if(all || strcmp(job->data_to_path, dflt->data_to_path)) {
+   strcat(report, " data_to=");
+   Text_shellsafe(job->data_to_path, report + strlen(report), 0);
+ }
+ if(strlen(report) > 4 * SfileadrL)
+   {ret= 0; goto ex;}
+ if(all || strcmp(job->sector_map_path, dflt->sector_map_path)) {
+   strcat(report, " sector_map=");
+   Text_shellsafe(job->sector_map_path, report + strlen(report), 0);
+ }
+ if(all || job->map_with_volid != dflt->map_with_volid)
+   sprintf(report + strlen(report), " map_with_volid=%s",
+           job->map_with_volid == 1 ? "on" : "off");
+ if(all || job->patch_lba0 != dflt->patch_lba0) {
+   sprintf(report + strlen(report), " patch_lba0=");
+   if(job->patch_lba0 == 0)
+     sprintf(report + strlen(report), "off");
+   else if(job->patch_lba0_msc1 >= 0)
+     sprintf(report + strlen(report), "%d%s",
+             job->patch_lba0_msc1, job->patch_lba0 == 2 ? ":force" : "");
+   else
+     sprintf(report + strlen(report), "%s",
+             job->patch_lba0 == 2 ? "force" : "on");
+ }
+ if(all || job->report_mode != dflt->report_mode)
+   sprintf(report + strlen(report), " report=%s",
+           job->report_mode == 0 ? "blocks" :
+           job->report_mode == 1 ? "files" : "blocks_files");
+ if(strlen(report) > 4 * SfileadrL)
+   {ret= 0; goto ex;}
+ ret= 1;
+ex:;
+ strcat(report, " --");
+ Checkmediajob_destroy(&dflt, 0);
+ if(ret > 0 && strcmp(report, "-check_media_defaults reset=now --") == 0)
+   return(2);
+ return(ret);
+}
+
+
 int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
 /*
  bit0= do only report non-default settings
@@ -4660,6 +4898,18 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
  if(!(is_default && no_defaults))
    Xorriso_status_result(xorriso,filter,fp,flag&2);
 
+ if(xorriso->check_media_default == NULL) {
+   is_default= 1;
+   sprintf(line, "-check_media_defaults --\n");
+ } else {
+   ret= Xorriso_check_media_list_job(xorriso, xorriso->check_media_default,
+                                     line, no_defaults);
+   is_default= (ret == 2);
+   strcat(line, "\n");
+ }
+ if(!(is_default && no_defaults))
+   Xorriso_status_result(xorriso,filter,fp,flag&2);
+
  is_default= (xorriso->img_read_error_mode==2);
  treatment= "best_effort";
  if(xorriso->img_read_error_mode==1)
@@ -9647,7 +9897,6 @@ int Xorriso_option_check_media(struct XorrisO *xorriso,
  int ret, i, count, lba, blocks, quality;
  int end_idx, old_idx, os_errno;
  char quality_name[80], head_buffer[64*1024];
- double num;
  struct SpotlisT *spotlist= NULL;
  struct CheckmediajoB *job= NULL;
  struct FindjoB *findjob= NULL;
@@ -9660,109 +9909,9 @@ int Xorriso_option_check_media(struct XorrisO *xorriso,
  ret= Checkmediajob_new(&job, 0);
  if(ret <= 0)
    goto ex;
-
- for(i= old_idx; i < end_idx; i++) {
-   if(strncmp(argv[i], "abort_file=", 11) == 0) {
-     ret= Sfile_str(job->abort_file_path, argv[i] + 11, 0);
-     if(ret <= 0)
-       goto ex;
-   } else if(strncmp(argv[i], "data_to=", 8) == 0) {
-     ret= Sfile_str(job->data_to_path, argv[i] + 8, 0);
-     if(ret <= 0)
-       goto ex;
-   } else if(strncmp(argv[i], "map_with_volid=", 15) == 0) {
-     if(strcmp(argv[i] + 15, "on") == 0)
-       job->map_with_volid= 1;
-     else if(strcmp(argv[i] + 15, "off") == 0)
-       job->map_with_volid= 0;
-     else
-       goto unknown_value;
-   } else if(strncmp(argv[i], "max_lba=", 8) == 0 ||
-      strncmp(argv[i], "min_lba=", 8) == 0) {
-     num= -1;
-     sscanf(argv[i] + 8, "%lf", &num);
-     if(num > 0x7fffffff || num < 0)
-       num= -1;
-     if(strncmp(argv[i], "max_lba=", 8) == 0)
-       job->max_lba= num;
-     else
-       job->min_lba= num;
-   } else if(strncmp(argv[i], "patch_lba0=", 11) == 0) {
-     job->patch_lba0_msc1= -1;
-     if(strcmp(argv[i] + 11, "on") == 0)
-       job->patch_lba0= 1;
-     else if(strcmp(argv[i] + 11, "off") == 0)
-       job->patch_lba0= 0;
-     else if(strcmp(argv[i] + 11, "force") == 0)
-       job->patch_lba0= 2;
-     else if(argv[i][11] >= '1' && argv[i][11] <= '9') {
-       num= -1;
-       sscanf(argv[i] + 11, "%lf", &num);
-       if(num > 0x7fffffff || num < 0)
-         goto unknown_value;
-       job->patch_lba0_msc1= num;
-       job->patch_lba0= (num >= 32) + (strstr(argv[i] + 11, ":force") != NULL);
-     } else 
-       goto unknown_value;
-   } else if(strncmp(argv[i], "report=", 7) == 0) {
-     if(strcmp(argv[i] + 7, "blocks") == 0)
-       job->report_mode= 0;
-     else if(strcmp(argv[i] + 7, "files") == 0)
-       job->report_mode= 1;
-     else if(strcmp(argv[i] + 7, "blocks_files") == 0)
-       job->report_mode= 2;
-     else
-       goto unknown_value;
-   } else if(strncmp(argv[i], "retry=", 6) == 0) {
-     if(strcmp(argv[i] + 6, "on") == 0)
-       job->retry= 1;
-     else if(strcmp(argv[i] + 6, "off") == 0)
-       job->retry= -1;
-     else if(strcmp(argv[i] + 6, "default") == 0)
-       job->retry= 0;
-     else
-       goto unknown_value;
-   } else if(strncmp(argv[i], "sector_map=", 11) == 0) {
-     ret= Sfile_str(job->sector_map_path, argv[i] + 11, 0);
-     if(ret <= 0)
-       goto ex;
-   } else if(strncmp(argv[i], "time_limit=", 11) == 0 ||
-             strncmp(argv[i], "item_limit=", 11) == 0 ) {
-     num= -1;
-     sscanf(argv[i] + 11, "%lf", &num);
-     if(num > 0x7fffffff || num < 0)
-       num= -1;
-     if(strncmp(argv[i], "time_limit=", 11) == 0)
-       job->time_limit= num;
-     else
-       job->item_limit= num;
-   } else if(strncmp(argv[i], "use=", 4) == 0) {
-     if(strcmp(argv[i] + 4, "outdev") == 0)
-       job->use_dev= 1;
-     else if(strcmp(argv[i] + 4, "indev") == 0)
-       job->use_dev= 0;
-     else if(strcmp(argv[i] + 4, "sector_map") == 0)
-       job->use_dev= 2;
-     else
-       goto unknown_value;
-   } else if(strncmp(argv[i], "what=", 5) == 0) {
-     if(strcmp(argv[i]+5, "tracks") == 0)
-       job->mode= 0;
-     else if(strcmp(argv[i]+5, "disc")== 0)
-       job->mode= 1;
-     else {
-unknown_value:;
-       sprintf(xorriso->info_text,
-               "-check_media: Unknown value with option %s", argv[i]);
-       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-       ret= 0; goto ex;
-     }
-   } else {
-     sprintf(xorriso->info_text, "-check_media: Unknown option '%s'", argv[i]);
-     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-     ret= 0; goto ex;
-   }
- }
+ ret= Xorriso_check_media_setup_job(xorriso, job, argv, old_idx, end_idx, 0);
+ if(ret <= 0)
+   goto ex;
 
  if((job->report_mode == 1 || job->report_mode == 2) && job->use_dev == 1) {
    sprintf(xorriso->info_text,
@@ -9855,6 +10004,33 @@ ex:;
 }
 
 
+/* Option -check_media_defaults */
+int Xorriso_option_check_media_defaults(struct XorrisO *xorriso,
+                                     int argc, char **argv, int *idx, int flag)
+{
+ int ret, old_idx, end_idx;
+ struct CheckmediajoB *job= NULL;
+
+ old_idx= *idx;
+ end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 1);
+ (*idx)= end_idx;
+
+ ret= Checkmediajob_new(&job, 0);
+ if(ret <= 0)
+   goto ex;
+ ret= Xorriso_check_media_setup_job(xorriso, job, argv, old_idx, end_idx, 0);
+ if(ret <= 0)
+   goto ex;
+ Checkmediajob_destroy(&(xorriso->check_media_default), 0);
+ xorriso->check_media_default= job;
+ job= NULL;
+ ret= 1;
+ex:;
+ Checkmediajob_destroy(&job, 0);
+ return(ret);
+}
+
+
 /* Option -chgrp alias -chgrpi , chgrp_r alias chgrpi */
 /* @param flag bit0=recursive (-chgrp_r)
 */
@@ -10738,8 +10914,8 @@ int Xorriso_option_extract(struct XorrisO *xorriso, char *iso_path,
 
 
 /* Option -extract_cut */
-int Xorriso_option_extract_cut(struct XorrisO *xorriso, char *isorr_path,
-               char *start, char *count, char *disk_path, int flag)
+int Xorriso_option_extract_cut(struct XorrisO *xorriso, char *iso_rr_path,
+                           char *start, char *count, char *disk_path, int flag)
 {
  int ret;
  double num;
@@ -10766,10 +10942,10 @@ int Xorriso_option_extract_cut(struct XorrisO *xorriso, char *isorr_path,
  sprintf(xorriso->info_text, 
          "-extract_cut from %s , byte %.f to %.f, and store as %s",
          disk_path, (double) startbyte, (double) (startbyte+bytecount),
-         isorr_path);
+         iso_rr_path);
  Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 
- ret= Xorriso_extract_cut(xorriso, isorr_path, disk_path,
+ ret= Xorriso_extract_cut(xorriso, iso_rr_path, disk_path,
                           startbyte, bytecount, 0); 
  return(ret);
 }
@@ -11445,6 +11621,7 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "                 Like -extract but with directory do not restore sub tree.",
 "  -extract_cut iso_rr_path byte_offset byte_count disk_path",
 "                 Copy a byte interval from iso_rr_path to disk_path.",
+"                 This is governed in part by -check_media_defaults.",
 "  -cpx iso_rr_path [***] disk_path",
 "                 Copy leaf file objects from ISO image to disk filesystem.",
 "  -cpax iso_rr_path [***] disk_path",
@@ -11467,6 +11644,8 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "                  sector_map=filepath , map_with_volid=on|off ,",
 "                  patch_lba0=on|off|force|blockadr[:force] ,",
 "                  report=blocks|files|blocks_files",
+"  -check_media_defaults [options] --",
+"                 Preset options for runs of -check_media and -extract_cut.",
 "",
 "Compatibility emulation (argument list may be ended by --):",
 "  -as mkisofs  [-help|-version|-o|-R|-J|-V|-P|-f|-m|-exclude-list|-no-pad|",
@@ -13523,7 +13702,8 @@ int Xorriso_count_args(struct XorrisO *xorriso, int argc, char **argv,
  };
  static char argn_commands[][40]= {
     "add","as",
-    "check_media","chgrp","chgrpi","chgrp_r","chgrp_ri","chmod","chmodi",
+    "check_media","check_media_defaults",
+    "chgrp","chgrpi","chgrp_r","chgrp_ri","chmod","chmodi",
     "chmod_r","chmod_ri","chown","chowni","chown_r","chown_ri",
     "compare_l","cpr","cpri","cp_rax","cp_rx","cpax","cpx",
     "du","dui","dus","dusi","dux","dusx","extract_l",
@@ -13692,6 +13872,9 @@ next_command:;
  } else if(strcmp(cmd,"check_media")==0) {
    ret= Xorriso_option_check_media(xorriso, argc, argv, idx, 0);
 
+ } else if(strcmp(cmd,"check_media_defaults")==0) {
+   ret= Xorriso_option_check_media_defaults(xorriso, argc, argv, idx, 0);
+
  } else if(strcmp(cmd,"chgrp")==0 || strcmp(cmd,"chgrpi")==0) {
    (*idx)+= 1;
    ret= Xorriso_option_chgrpi(xorriso, arg1, argc, argv, idx, 0);   
diff --git a/xorriso/xorriso.h b/xorriso/xorriso.h
index c47c3353..5467607a 100644
--- a/xorriso/xorriso.h
+++ b/xorriso/xorriso.h
@@ -305,6 +305,10 @@ int Xorriso_option_cdx(struct XorrisO *xorriso, char *disk_path, int flag);
 int Xorriso_option_check_media(struct XorrisO *xorriso,
                                int argc, char **argv, int *idx, int flag);
 
+/* Option -check_media_defaults */
+int Xorriso_option_check_media_defaults(struct XorrisO *xorriso,
+                                    int argc, char **argv, int *idx, int flag);
+
 /* Option -chgrp alias -chgrpi , chgrp_r alias chgrpi */
 /* @param flag bit0=recursive (-chgrp_r)
 */
@@ -410,6 +414,10 @@ int Xorriso_option_error_behavior(struct XorrisO *xorriso,
 int Xorriso_option_extract(struct XorrisO *xorriso, char *disk_path,
                        char *iso_path, int flag);
 
+/* Option -extract_cut */
+int Xorriso_option_extract_cut(struct XorrisO *xorriso, char *iso_rr_path,
+                          char *start, char *count, char *disk_path, int flag);
+
 /* Option -follow */
 int Xorriso_option_follow(struct XorrisO *xorriso, char *mode, int flag);
 
diff --git a/xorriso/xorriso_private.h b/xorriso/xorriso_private.h
index 06976dad..a7969597 100644
--- a/xorriso/xorriso_private.h
+++ b/xorriso/xorriso_private.h
@@ -157,6 +157,7 @@ struct XorrisO { /* the global context of xorriso */
  int volset_change_pending; /* whether -commit would make sense */
  int no_volset_present;     /* set to 1 on first failure */
 
+ struct CheckmediajoB *check_media_default;
  struct SectorbitmaP *in_sector_map; /* eventual sector validity bitmap */
 
 
@@ -311,7 +312,7 @@ struct XorrisO { /* the global context of xorriso */
  struct PermiteM *perm_stack; /* Temporarily altered dir access permissions */
 
  /* result (stdout, R: ) */
- char result_line[5*SfileadrL];
+ char result_line[10*SfileadrL];
  int result_line_counter;
  int result_page_counter;
  int result_open_line_len;
@@ -719,6 +720,8 @@ int Checkmediajob_new(struct CheckmediajoB **o, int flag);
 
 int Checkmediajob_destroy(struct CheckmediajoB **o, int flag);
 
+int Checkmediajob_copy(struct CheckmediajoB *from, struct CheckmediajoB *to,
+                       int flag);
 
 int Sectorbitmap_new(struct SectorbitmaP **o, int sectors, int sector_size,
                      int flag);
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 8c2f539c..94b024ce 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2008.09.03.143218"
+#define Xorriso_timestamP "2008.09.04.100158"
diff --git a/xorriso/xorrisoburn.c b/xorriso/xorrisoburn.c
index 4061156d..1efdce02 100644
--- a/xorriso/xorrisoburn.c
+++ b/xorriso/xorrisoburn.c
@@ -7629,17 +7629,18 @@ int Xorriso_read_file_data(struct XorrisO *xorriso, IsoNode *node,
  ret= Checkmediajob_new(&job, 0);
  if(ret <= 0)
    goto ex;
+ if(xorriso->check_media_default != NULL)
+   Checkmediajob_copy(xorriso->check_media_default, job, 0);
+ job->min_lba= -1;
+ job->max_lba= -1;
+ job->sector_map_path[0]= 0;
+
  ret= Spotlist_new(&spotlist, 0);
  if(ret <= 0)
    {ret= -1; goto ex;}
 
- /* do overall job programming: 
-    >>> ??? time_limit, item_limit
-    >>> ??? abort_file_path
- */
  if(Sfile_str(job->data_to_path, disk_path, 0) <= 0)
    {ret= -1; goto ex;}
-
  Xorriso_open_job_data_to(xorriso, job, 0);
  if(ret <= 0)
    goto ex;