Implemented options -outdev and -indev

2007-11-14 14:28:44 +00:00 · 2007-11-14 14:28:44 +00:00 · 146debc163
commit 146debc163
parent 556b40c264
5 changed files with 276 additions and 134 deletions
--- a/test/xorriso.1
+++ b/test/xorriso.1
@ -45,7 +45,8 @@ Renames or deletes file objects in the ISO image.
 .br
 Changes file properties in the ISO image.
 .br
- > Can write result as completely new image to optical media or filesystem objects.
+Can write result as completely new image to optical media or
+filesystem objects.
 .br
 Can write result as add-on session to appendable multi-session media, 
 to overwriteable media, to regular files, and to block devices.
@ -98,19 +99,11 @@ MMC media like DVD-RAM, DVD+RW, formatted DVD-RW, and of course not to disk
 files or non-CD/DVD block devices.
 Program growisofs by Andy Polyakov showed how to extend this functionality
 to overwriteable media or disk files which carry valid ISO 9660 filesystems.
-These two expansion methods are referred as "growing" in this text.
-.PP
-xorriso provides growing as well as an own method which produces a completely
- > new ISO image from the old one and the modifications. This unique xorriso
- > method produces compact filesystem images with no waste by outdated data blocks
- > and it can write modified images to targets which are completely unsuitable
- > for multi-session operations. E.g. fast blanked DVD-RW, named pipes,
- > character devices, sockets.
- > Therefore this method is called "modifying". Its drawback is that the target
- > cannot be the same media which holds the unmodified ISO image but that this
- > media has to be present while the new image gets written to another media.
- > So typically one needs either two optical drives or has to work with
- > filesystem objects as source and/or target media.
+These two expansion methods are referred as \fBgrowing\fR in this text.
+.br
+xorriso provides both ways of growing as well as an own method which produces
+a completely new ISO image from the old one and the modifications.
+See below.
 .PP
 xorriso adopts the concept of session by loading an eventual image directory
 tree, allowing to manipulate it by several actions, and to write the new
@ -131,6 +124,18 @@ session.
 .br
 In some special situations (e.g. in a file-to-file situation) it can be
 useful to store intermediate states and to continue with image manipulations.
+.PP
+The unique xorriso method of \fBmodifying\fR produces compact filesystem
+images with no waste by outdated data blocks and it can write modified images
+to target media which are completely unsuitable for multi-session operations.
+E.g. fast blanked DVD-RW, named pipes, character devices, sockets.
+It is important to note that modified sessions can be written to blank
+media only.
+.br
+Modifying takes place whenever input drive and output drive are not the same.
+See options -dev, -indev, -outdev.
+So for this method one needs either two optical drives or has to work with
+filesystem objects as source and/or target media.
 .SS
 .B Libburn drives:
 .br
@ -239,21 +244,34 @@ Options with prefix '?' are not tested yet.
 .B Aquiring source and target drive:
 .TP
 \fB\-dev\fR address
-Set input and output drive and load eventual ISO image.
+Set input and output drive to the same address and load eventual ISO image.
+If there is no ISO image then create a blank one.
 Set the image expansion method to growing.
-Only allowed as long as no ISO image was loaded and
-altered, or after actions -rollback, or -commit.
+.br
+This is only allowed as long as no changes are pending in the currently
+loaded ISO image. Eventually  one has to perform -commit or -rollback first.
 Violation yields a SORRY event.
 .br
 An empty address string gives up the current device
 without aquiring a new one.
 .TP
-> \fB\-indev\fR address
-Set input drive and load eventual ISO image. Switch from
-growing to modifying. Same restrictions as with -dev
+\fB\-indev\fR address
+Set input drive and load eventual ISO image. If the new input drive differs
+from outdev then switch from growing to modifying. The same rules and
+restrictions apply as with -dev.
 .TP
-> \fB\-outdev\fR address
-Set output drive and switch from growing to modifying.
+\fB\-outdev\fR address
+Set output drive and if it differs from the input drive then switch from
+growing to modifying. Unlike -dev and -indev this action does not load a
+new ISO image. So it can be performed even if there are pending changes.
+.br
+-outdev can be performed without previous -dev or -indev. In that case an
+empty ISO image with no changes pending is created. It can either be populated
+by help of -add or it can be discarded silently if -dev or -indev are
+performed afterwards.
+.br
+An empty address string gives up the current output drive
+without aquiring a new one. No writing is possible without an output drive.
 .TP
 \fB\-ban_stdio_write\fR
 Allow for writing only the usage of optical drives. Disallow
@ -330,7 +348,7 @@ Delete the given files from the ISO image.
 Note: This does not free any space on the -indev media, even if
 the deletion is committed to that same media.
 .br
-> The image size will shrink if the image is written to a different
+The image size will shrink if the image is written to a different
 media in modification mode.
 .TP
 \fB\-rm_r\fR iso_rr_path [***]
@ -847,7 +865,7 @@ enter option and arguments :
 .br
 enter option and arguments :
 .br
-.B \-commit -eject -end
+.B \-commit -eject all -end
 .br
 .SS
 .B Modifying an existing ISO image
@ -870,7 +888,7 @@ Add new directory tree /movies. Burn to DVD and eject.
 /movies=/home/me/prepared_for_dvd/movies \\
 -- \\
 -commit \\
- -eject
+ -eject all
 .SS
 .B Examples of input timestrings
 .br
--- a/test/xorriso.c
+++ b/test/xorriso.c
@ -4322,15 +4322,10 @@ int Xorriso_option_commit(struct XorrisO *xorriso, int flag)
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
   return(2);
 }
-
- /* >>> care for modifying */
-
- ret= Xorriso_write_growing(xorriso, 0);
+ ret= Xorriso_write_session(xorriso, 0);
 if(ret<=0)
   return(ret);
-
 xorriso->volset_change_pending= 0;
-
 if(flag&1)
   return(1);
 strcpy(newdev, xorriso->outdev);
@ -4387,14 +4382,17 @@ int Xorriso_option_dev(struct XorrisO *xorriso, char *adr, int flag)
   return(0);
 }

+#ifdef NIX
 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);
 }
+#endif

 if(xorriso->volset_change_pending && (flag&1)) {
   sprintf(xorriso->info_text,
@ -5378,10 +5376,7 @@ int Xorriso_option_print_size(struct XorrisO *xorriso, int flag)
   Xorriso_result(xorriso,0);
   return(2);
 }
-
- /* >>> care for modifying */
-
- ret= Xorriso_write_growing(xorriso, 1);
+ ret= Xorriso_write_session(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);
@ -5559,7 +5554,7 @@ int Xorriso_option_rollback(struct XorrisO *xorriso, int flag)

 if(Sfile_str(indev, xorriso->indev, 0)<=0)
   return(-1);
- ret= Xorriso_give_up_drive(xorriso, 1);
+ ret= Xorriso_give_up_drive(xorriso, 1|8);
 if(ret<=0)
   return(ret);
 ret= Xorriso_option_dev(xorriso, indev,
@ -5657,7 +5652,7 @@ 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) {
+ if(ret<=0) {
   sprintf(xorriso->info_text, "Cannot -tell_media_space");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
@ -5697,9 +5692,23 @@ int Xorriso_option_temp_mem_limit(struct XorrisO *xorriso, char *size,
 /* Option -toc */
 int Xorriso_option_toc(struct XorrisO *xorriso, int flag)
 {
- int ret;
+ int ret, in_ret= 1000;

+ if(strcmp(xorriso->indev,xorriso->outdev)==0)
   ret= Xorriso_toc(xorriso, 0);
+ else {
+   if(xorriso->indev[0]!=0)
+     in_ret= Xorriso_toc(xorriso, 0);
+   if(xorriso->indev[0]!=0 && xorriso->outdev[0]!=0) {
+     strcpy(xorriso->result_line, "-------------: ---------------------------------------------------------------\n");
+     Xorriso_result(xorriso,0);
+   }
+   ret= 1;
+   if(xorriso->outdev[0]!=0)
+     ret= Xorriso_toc(xorriso, 2);
+   if(in_ret<ret)
+     ret= in_ret;
+ }
 return(ret);
 }

@ -5977,7 +5986,7 @@ next_command:;

 } else if(strcmp(cmd,"-outdev")==0) {
   (*idx)++;
-   ret= Xorriso_option_dev(xorriso, arg1, 1);
+   ret= Xorriso_option_dev(xorriso, arg1, 2);

 } else if(strcmp(cmd,"-page")==0) {
   (*idx)+= 2;
--- a/test/xorriso_timestamp.h
+++ b/test/xorriso_timestamp.h
@ -1 +1 @@
-#define Xorriso_timestamP "2007.11.14.142904"
+#define Xorriso_timestamP "2007.11.14.143119"
--- a/test/xorrisoburn.c
+++ b/test/xorrisoburn.c
@ -127,7 +127,8 @@ int Xorriso_get_drive_handles(struct XorrisO *xorriso,
   *dinfo= (struct burn_drive_info *) xorriso->in_drive_handle;
 if(*dinfo==NULL) {
   Xorriso_process_msg_queues(xorriso,0);
-   sprintf(xorriso->info_text, "No drive aquired %s", attempt);
+   sprintf(xorriso->info_text, "No %s drive aquired %s",
+           (flag&2 ? "output" : "input"), attempt);
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   return(0);
 }
@ -136,29 +137,84 @@ int Xorriso_get_drive_handles(struct XorrisO *xorriso,
 }


+int Xorriso_create_empty_iso(struct XorrisO *xorriso, int flag)
+{
+ int ret;
+ struct iso_volset *volset;
+ struct isoburn_read_opts ropts;
+ struct burn_drive_info *dinfo= NULL;
+ struct burn_drive *drive= NULL;
+
+ if(xorriso->out_drive_handle != NULL) {
+   ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
+                                  "on attempt to attach volset to drive", 2);
+   if(ret<=0)
+     return(ret);
+ }
+ if(xorriso->in_volset_handle!=NULL) {
+   iso_volset_free((struct iso_volset *) xorriso->in_volset_handle);
+   xorriso->in_volset_handle= NULL;
+   xorriso->volset_change_pending= 0;
+ }
+ memset(&ropts, sizeof(ropts), 0);
+ ropts.pretend_blank= 1;
+ ret= isoburn_read_volset(drive, &ropts, &volset);
+ Xorriso_process_msg_queues(xorriso,0);
+ if(ret<=0) {
+   sprintf(xorriso->info_text, "Failed to create new empty ISO image object");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
+   return(-1);
+ }
+ xorriso->in_volset_handle= volset;
+ xorriso->volset_change_pending= 0;
+ return(1);
+}
+
+
 /* @param flag bit0=aquire as isoburn input drive
               bit1=aquire as libburn output drive (as isoburn drive if bit0)
+   @return <=0 failure , 1= ok
+           2=success, but not writeable with bit1
+           3=success, but not blank and not ISO with bit0
 */
 int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
 {
- int ret;
- struct burn_drive_info *dinfo= NULL;
- struct burn_drive *drive;
+ int ret, hret, not_writeable= 0;
+ struct burn_drive_info *dinfo= NULL, *out_dinfo, *in_dinfo;
+ struct burn_drive *drive, *out_drive, *in_drive;
 enum burn_disc_status state;
 struct iso_volset *volset;
 struct isoburn_read_opts ropts;

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

+ if((flag&3)==1 && xorriso->out_drive_handle!=NULL) {
+   ret= Xorriso_get_drive_handles(xorriso, &out_dinfo, &out_drive,
+                         "on attempt to compare new indev with outdev", 2);
+   if(ret<=0)
+     goto ex;
+   ret= burn_drive_equals_adr(out_drive, adr, 1);
+   if(ret==1)
+     dinfo= out_dinfo;
+ } else if((flag&3)==2 && xorriso->in_drive_handle!=NULL) {
+   ret= Xorriso_get_drive_handles(xorriso, &in_dinfo, &in_drive,
+                         "on attempt to compare new indev with outdev", 0);
+   if(ret<=0)
+     goto ex;
+   ret= burn_drive_equals_adr(in_drive, adr, 1);
+   if(ret==1)
+     dinfo= in_dinfo;
+ }
+
+ if(dinfo==NULL) {
   ret= isoburn_drive_scan_and_grab(&dinfo, adr, 1);
   Xorriso_process_msg_queues(xorriso,0);
   if(ret<=0) {
@ -166,53 +222,92 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
     return(0);
   }
- if(flag&2) {
-   xorriso->out_drive_handle= dinfo;
-   if(Sfile_str(xorriso->indev, adr, 0)<=0)
-     return(-1);
 }
- if(flag&1) {
-   xorriso->in_drive_handle= dinfo;
-   if(Sfile_str(xorriso->outdev, adr, 0)<=0)
-     return(-1);
- } else
-   return(1);
-
 drive= dinfo[0].drive;
-
- /* check for invalid state */
 state= isoburn_disc_get_status(drive);
 Xorriso_process_msg_queues(xorriso,0);

- /* >>> show drive and media status */;
-
+ if(flag&2) {
+   xorriso->out_drive_handle= dinfo;
+   if(Sfile_str(xorriso->outdev, adr, 0)<=0)
+     return(-1);
   if(state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE) {
     sprintf(xorriso->info_text, "Disc status unsuitable for writing");
     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
+     not_writeable= 1;
+   }
+ }
+ if(flag&1) {
+   xorriso->in_drive_handle= dinfo;
+   if(Sfile_str(xorriso->indev, adr, 0)<=0)
+     return(-1);
+ } else if(flag&2) {
+   if(xorriso->in_volset_handle==NULL) {
+     /* No volume loaded: create empty one */
+     ret= Xorriso_create_empty_iso(xorriso, 0);
+     if(ret<=0)
+       return(ret);
+   } else {
+     iso_volset_ref(xorriso->in_volset_handle);
+     ret= isoburn_attach_volset(drive,
+                              (struct iso_volset *) xorriso->in_volset_handle);
+     if(ret<=0) {
+       sprintf(xorriso->info_text,
+               "Failed to attach ISO image object to outdev");
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
+       return(-1);
+     }
+   }
+   Xorriso_toc(xorriso, 1|2);
+   return(1+not_writeable);
+ }
+
+ if(xorriso->in_volset_handle!=NULL)
+   iso_volset_free((struct iso_volset *) xorriso->in_volset_handle);
+ xorriso->in_volset_handle= NULL;
+
+ /* check for invalid state */
+ if(state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE &&
+    state != BURN_DISC_FULL) {
+   sprintf(xorriso->info_text,
+           "Disc status not blank and unsuitable for reading");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+   return(0);
 }
 /* fill read opts */ 
+ memset(&ropts, sizeof(ropts), 0);
 ropts.norock= 0;
 ropts.nojoliet= 0;
 ropts.preferjoliet= 0;
 ropts.uid= 0;
 ropts.gid= 0;
 ropts.mode= 0555;
+ ropts.pretend_blank= 0;

 if(isoburn_read_volset(drive, &ropts, &volset) <= 0) {
   Xorriso_process_msg_queues(xorriso,0);
   sprintf(xorriso->info_text,"Cannot read ISO image volset");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
-   ret= 0; goto ex;
+   ret= 3; goto ex;
 }
 xorriso->in_volset_handle= volset;
+ if(xorriso->out_drive_handle != NULL &&
+    xorriso->out_drive_handle != xorriso->in_drive_handle) {
+   ret= Xorriso_get_drive_handles(xorriso, &out_dinfo, &out_drive,
+                         "on attempt to attach ISO image volset to outdev", 2);
+   if(ret<=0)
+     goto ex;
+   iso_volset_ref(xorriso->in_volset_handle);
+   isoburn_attach_volset(out_drive, xorriso->in_volset_handle);
+ }
 Xorriso_process_msg_queues(xorriso,0);
 Xorriso_toc(xorriso, 1);
- ret= 1;
+ ret= 1+not_writeable;
 ex:
- if(ret<0) {
-
-   /* >>> give up drive */;
-
+ if(ret<=0) {
+   hret= Xorriso_give_up_drive(xorriso, flag&3);
+   if(hret<ret)
+     ret= hret;
 }
 Xorriso_process_msg_queues(xorriso,0);
 return(ret);
@ -222,10 +317,11 @@ ex:
 /* @param flag bit0=input drive
               bit1=output drive
               bit2=eject
+               bit3=no info message or toc
 */
 int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
 {
- int in_is_out_too;
+ int in_is_out_too, ret;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
 
@ -233,33 +329,45 @@ int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
   
 if((flag&1) && xorriso->in_drive_handle != NULL) {
   Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
-                             "on attempt to give drive up", 0);
-   if(drive!=NULL)
+                             "on attempt to give up drive", 0);
+
+   if(!in_is_out_too) {
+     if(drive!=NULL && !in_is_out_too)
       isoburn_drive_release(drive,!!(flag&4));
+     if(dinfo!=NULL && !in_is_out_too)
+       burn_drive_info_free(dinfo);
+   }
+   xorriso->in_drive_handle= NULL;
+   xorriso->indev[0]= 0;

   if(xorriso->in_volset_handle!=NULL)
     iso_volset_free((struct iso_volset *) xorriso->in_volset_handle);
   xorriso->in_volset_handle= NULL;
   xorriso->volset_change_pending= 0;

-   if(dinfo!=NULL)
-     burn_drive_info_free(dinfo);
-   xorriso->in_drive_handle= NULL;
-   xorriso->indev[0]= 0;
-   if(in_is_out_too) {
-     xorriso->out_drive_handle= NULL;
-     xorriso->outdev[0]= 0;
-   }
+   in_is_out_too= 0;
 }
 if((flag&2) && xorriso->out_drive_handle!=NULL) {
   Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                             "on attempt to give drive up", 2);
+   if(!in_is_out_too) {
     if(drive!=NULL)
       isoburn_drive_release(drive,!!(flag&4));
     if(dinfo!=NULL)
       burn_drive_info_free(dinfo);
+   }
   xorriso->out_drive_handle= NULL;
   xorriso->outdev[0]= 0;
+ } else if((flag&1) && xorriso->out_drive_handle!=NULL) {
+   ret= Xorriso_create_empty_iso(xorriso, 0);
+   if(ret<=0)
+     return(ret);
+   if(!(flag&8)) {
+     sprintf(xorriso->info_text,
+             "Only the output drive remains. Created empty ISO image.\n");
+     Xorriso_info(xorriso, 0);
+     Xorriso_toc(xorriso, 1|2);
+   }
 }
 Xorriso_process_msg_queues(xorriso,0);
 return(1);
@ -287,19 +395,19 @@ int Xorriso_make_write_options(

 /* @param flag bit0= do not write but only prepare and return size in sectors
 */
-int Xorriso_write_growing(struct XorrisO *xorriso, int flag)
+int Xorriso_write_session(struct XorrisO *xorriso, int flag)
 {
 int ret, media_space;
 struct isoburn_source_opts sopts;
- struct burn_drive_info *dinfo;
- struct burn_drive *drive;
+ struct burn_drive_info *dinfo, *source_dinfo;
+ struct burn_drive *drive, *source_drive;
 struct burn_disc *disc= NULL;
 struct burn_write_opts *burn_options;
 off_t readcounter= 0,writecounter= 0;
 int num_sessions= 0, num_tracks= 0;
 struct burn_session **sessions;
 struct burn_track **tracks;
-
+ enum burn_disc_status s;

 ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                "on attempt to write", 2);
@ -327,9 +435,31 @@ int Xorriso_write_growing(struct XorrisO *xorriso, int flag)
 sopts.ouput_charset= NULL;
 sopts.fifo_size= xorriso->fs * 2048;

- if (isoburn_prepare_disc(drive, &disc, &sopts) <= 0) {
+ if(xorriso->out_drive_handle == xorriso->in_drive_handle ||
+    xorriso->in_drive_handle == NULL) {
+   ret= isoburn_prepare_disc(drive, &disc, &sopts);
+ } else {
+   s= isoburn_disc_get_status(drive);
+   if(s!=BURN_DISC_BLANK) {
+     s= burn_disc_get_status(drive);
+     if(s!=BURN_DISC_BLANK)
+       sprintf(xorriso->info_text,
+               "-indev differs from -outdev and -outdev media is not blank");
+     else
+       sprintf(xorriso->info_text,
+        "-indev differs from -outdev and -outdev media holds valid ISO image");
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+     {ret= 0; goto ex;}
+   }
+   ret= Xorriso_get_drive_handles(xorriso, &source_dinfo, &source_drive,
+                                  "on attempt to get source for write", 0);
+   if(ret<=0)
+     goto ex;
+   ret= isoburn_prepare_new_image(source_drive, &disc, &sopts);
+ }
+ if (ret <= 0) {
   Xorriso_process_msg_queues(xorriso,0);
-   sprintf(xorriso->info_text,"Cannot prepare disc");
+   sprintf(xorriso->info_text,"Failed to prepare session write run");
   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
   {ret= 0; goto ex;}
 }
@ -341,6 +471,7 @@ int Xorriso_write_growing(struct XorrisO *xorriso, int flag)
 ret= burn_disc_get_sectors(disc);
 if(flag&1)
   goto ex;
+
 media_space= burn_disc_available_space(drive, burn_options) / (off_t) 2048;
 if(media_space < ret) {
   Xorriso_process_msg_queues(xorriso,0);
@ -972,13 +1103,15 @@ int Xorriso_process_msg_queues(struct XorrisO *xorriso, int flag)


 /* @param flag bit0=short report form
+               bit1=report about output drive
 */
 int Xorriso_toc(struct XorrisO *xorriso, int flag)
 {
 int num_sessions= 0, num_tracks= 0, lba= 0, nwa= -1, pmin, psec, pframe, ret;
 int track_count= 0, session_no, track_no, profile_no= -1;
 int last_track_start= 0, last_track_size= -1, num_data= 0, is_data= 0;
- char profile_name[80],*respt;
+ int is_inout_drive= 0;
+ char profile_name[80],*respt,*devadr;
 struct burn_disc *disc= NULL;
 struct burn_session **sessions;
 struct burn_track **tracks;
@ -988,13 +1121,21 @@ int Xorriso_toc(struct XorrisO *xorriso, int flag)
 enum burn_disc_status s;

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

 respt= xorriso->result_line;

- sprintf(respt, "Drive current: -indev '%s'\n", xorriso->indev);
+ if(strcmp(xorriso->indev, xorriso->outdev)==0)
+   is_inout_drive= 1;
+ if(flag&2)
+   devadr= xorriso->outdev;
+ else
+   devadr= xorriso->indev;
+ sprintf(respt, "Drive current: %s '%s'\n",
+         (is_inout_drive ? "-dev" : (flag&2 ? "-outdev" : "-indev")),
+         devadr);
 Xorriso_result(xorriso,0);
 sprintf(respt, "Drive type   : vendor '%s' product '%s' revision '%s'\n",
        dinfo[0].vendor, dinfo[0].product, dinfo[0].revision);
@ -1211,10 +1352,7 @@ int Xorriso_tell_media_space(struct XorrisO *xorriso,
 burn_write_opts_free(burn_options);

 if(xorriso->volset_change_pending) {
-
-   /* >>> care for modifying */
-
-   ret= Xorriso_write_growing(xorriso, 1);
+   ret= Xorriso_write_session(xorriso, 1);
   if(ret>0)
     (*free_space)-= ret;
 }
@ -1321,12 +1459,6 @@ int Xorriso_format_media(struct XorrisO *xorriso, int flag)
 int ret, mode_flag= 0;
 struct burn_drive_info *dinfo;
 struct burn_drive *drive;
-
-#ifdef NIX
- struct burn_progress p;
- double percent = 1.0;
-#endif
-
 int current_profile;
 char current_profile_name[80];

@ -1363,30 +1495,6 @@ int Xorriso_format_media(struct XorrisO *xorriso, int flag)
 if(ret<=0)
   return(ret);

-#ifdef NIX
-
- usleep(1000000);
- while(burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
-   if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
-     percent = 1.0 + ((double) p.sector+1.0)
-               / ((double) p.sectors) * 98.0;
-   sprintf(xorriso->info_text, "Formatting  ( %.1f%% done )", percent);
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
-   usleep(1000000);
- }
-
- burn_disc_get_profile(dinfo[0].drive, &current_profile, current_profile_name);
- sprintf(xorriso->info_text, "Media type now: %4.4xh  \"%s\"\n",
-         current_profile, current_profile_name);
- Xorriso_info(xorriso, 0);
- if(current_profile != 0x13 && current_profile != 0x1a) {
-   sprintf(xorriso->info_text, 
-           "Failed to change media profile to desired value.");
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
-   return(0);
- }
-#endif
-
 Xorriso_process_msg_queues(xorriso,0);
 sprintf(xorriso->info_text, "Formatting done\n");
 Xorriso_info(xorriso,0);
--- a/test/xorrisoburn.h
+++ b/test/xorrisoburn.h
@ -18,11 +18,17 @@ struct XorrisO;

 int Xorriso_startup_libraries(struct XorrisO *xorriso, int flag);

+int Xorriso_create_empty_iso(struct XorrisO *xorriso, int flag);
+
+/* @param flag bit0=aquire as isoburn input drive
+               bit1=aquire as libburn output drive (as isoburn drive if bit0)
+   @return <=0 failure , 1=success , 2=neither readable or writeable
+*/
 int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag);

 int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag);

-int Xorriso_write_growing(struct XorrisO *xorriso, int flag);
+int Xorriso_write_session(struct XorrisO *xorriso, int flag);

 /* @param flag bit0=graft in as empty directory, not as copy from disk
   @return <=0 = error , 1 = added simple node , 2 = added directory
@ -32,7 +38,8 @@ int Xorriso_graft_in(struct XorrisO *xorriso, char *disk_path, char *img_path,

 int Xorriso__text_to_sev(char *severity_name, int *severity_number,int flag);

-/* @param flag bit0=short report form
+/* @param flag bit0=report about output drive 
+               bit1=short report form
 */
 int Xorriso_toc(struct XorrisO *xorriso, int flag);