New -osirrox sub-options o_excl_on/off. Program osirrox starts with o_excl_off.

xorriso/xorriso.1

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "Aug 31, 2009"
+.TH XORRISO 1 "Sep 19, 2009"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -2752,6 +2752,14 @@ allows to restore large numbers of hard links without exhausting
 -temp_mem_limit. It does not preserve directory mtime and it needs
 -osirrox option auto_chmod_on in order to extract directories which offer no
 write permission. Default is "sort_lba_off".
+.br
+Option "o_excl_on" is the default unless the program was started with leafname
+"osirrox". On Linux it tries to avoid using drives which are mounted or in
+use by other libburn programs.
+Option "o_excl_off" allows on Linux to access such drives. Drives which
+get aquired while "o_excl_off" will refuse to get blanked, formatted, 
+written, or ejected. But be aware that even harmless inquiries can spoil
+ongoing burns of CD-R[W] and DVD-R[W].
 .TP
 \fB\-extract\fR iso_rr_path disk_path
 Restore the file objects at and underneath iso_rr_path to their corresponding
@@ -2946,13 +2954,17 @@ X of Y MB written (fifo nn%) [buf mmm%]
 .br
 nn% done, estimate finish Tue Jul 15 20:13:28 2008
 .TP
-\fB\-scdbackup_tag\fR name timestamp
+\fB\-scdbackup_tag\fR list_path record_name
-Set the parameters "name" and "timestamp" for an scdbackup checksum tag.
+Set the parameter "name" for a scdbackup checksum record.
-It will be appended to the -md5 session tag if the image starts at LBA 0,
+It will be appended in an scdbackup checksum tag to the -md5 session tag if
-which is the case if output gets written as first session onto a sequential
+the image starts at LBA 0. This is the case if it gets written as first
-media, or piped into a program, named pipe or character device. 
+session onto a sequential media, or piped into a program, named pipe or
+character device.
 .br
-Program scdbackup_verify will recognize and verify these tags.
+If list_path is not empty then the record will also be appended to the
+data file given by this path.
+.br
+Program scdbackup_verify will recognize and verify tag resp. record.
 .TP
 .B Scripting, dialog and program control features:
 .TP

xorriso/xorriso.c

@@ -4739,12 +4739,14 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->toc_emulation_flag= 0;
  m->image_start_mode= 0;
  m->image_start_value[0]= 0;
+ m->drives_exclusive= 1;
  m->do_calm_drive= 1;
  m->indev[0]= 0;
  m->in_drive_handle= NULL;
  m->in_volset_handle= NULL;
  m->in_charset= NULL;
  m->isofs_st_out= time(0) - 1;
+ m->indev_is_exclusive= 1;
  m->isofs_st_in= 0;
  m->volset_change_pending= 0;
  m->no_volset_present= 0;
@@ -4754,6 +4756,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->out_drive_handle= NULL;
  m->out_charset= NULL;
  m->dev_fd_1= -1;
+ m->outdev_is_exclusive= 1;
  m->grow_blindly_msc2= -1;
  m->ban_stdio_write= 0;
  m->do_dummy= 0;
@@ -4882,9 +4885,10 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  ret= Sfile_leafname(progname, leafname, 0);
  if(ret<=0)
    goto failure;
- if(strcmp(leafname, "osirrox")==0)
+ if(strcmp(leafname, "osirrox")==0) {
    m->allow_restore= 1;
- else if(strcmp(leafname, "xorrisofs")==0 || strcmp(leafname, "genisofs")==0 ||
+   m->drives_exclusive= 0;
+ } else if(strcmp(leafname, "xorrisofs")==0 || strcmp(leafname, "genisofs")==0 ||
         strcmp(leafname, "mkisofs")==0 || strcmp(leafname, "genisoimage")==0) {
    m->argument_emulation= 1;
    m->pacifier_style= 1;
@@ -6545,8 +6549,10 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
 */
 {
  int is_default, no_defaults, i, ret, adr_mode, bin_path_in_use= 0, do_single;
+ int show_indev= 1, show_outdev= 1, show_dev= 0;
  char *line, sfe[5 * SfileadrL + 80], mode[80], *form, *treatment;
  char *in_pt, *out_pt, *nl_charset, *local_charset, *mode_pt;
+ char *dev_filter= NULL;
  static char channel_prefixes[4][4]= {".","R","I","M"};
  static char load_names[][20]= {"auto", "session", "track", "lba", "volid"};
  static int max_load_mode= 4;
@@ -6702,7 +6708,7 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
  }
 
  is_default= (xorriso->allow_restore==0 && xorriso->do_concat_split==1 &&
-              xorriso->do_auto_chmod==0);
+              xorriso->do_auto_chmod==0 && xorriso->drives_exclusive == 1);
  mode_pt= "off"; 
  if(xorriso->allow_restore == -1)
    mode_pt= "banned";
@@ -6713,10 +6719,11 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
  if(xorriso->allow_restore == -1)
    sprintf(line,"-osirrox %s\n", mode_pt);
  else
-   sprintf(line,"-osirrox %s:%s:%s:%s\n", mode_pt,
+   sprintf(line,"-osirrox %s:%s:%s:%s:%s\n", mode_pt,
          xorriso->do_concat_split ? "concat_split_on" : "concat_split_off",
          xorriso->do_auto_chmod ? "auto_chmod_on" : "auto_chmod_off",
-         xorriso->do_restore_sort_lba ? "sort_lba_on" : "sort_lba_off"
+         xorriso->do_restore_sort_lba ? "sort_lba_on" : "sort_lba_off",
+         xorriso->drives_exclusive ? "o_excl_on" : "o_excl_off"
         );
  
  if(!(is_default && no_defaults))
@@ -7196,19 +7203,57 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
  }
 
  do_single= 0;
- ret= Xorriso_status_filter(xorriso, filter, "-indev", 0);
+ dev_filter= filter;
- if(ret <= 0)
+ if(dev_filter != NULL) {
-   ret= Xorriso_status_filter(xorriso, filter, "-outdev", 0);
+   show_dev= Xorriso_status_filter(xorriso, filter, "-dev", 0);
- if(ret > 0)
+   if(show_dev > 0)
+     dev_filter= NULL; 
+ }
+ if(dev_filter != NULL) {
+   show_indev= Xorriso_status_filter(xorriso, filter, "-indev", 0);
+   show_outdev= Xorriso_status_filter(xorriso, filter, "-outdev", 0);
+   if(show_outdev > 0 || show_indev > 0)
+     do_single= 1;
+ }
+ if(xorriso->drives_exclusive != xorriso->indev_is_exclusive &&
+    xorriso->indev[0]) 
+   do_single= 1;
+ else if(xorriso->drives_exclusive != xorriso->outdev_is_exclusive &&
+         xorriso->outdev[0]) 
    do_single= 1;
  if(strcmp(xorriso->indev, xorriso->outdev) == 0 && !do_single) {
    sprintf(line,"-dev %s\n", Text_shellsafe(xorriso->indev,sfe,0));
-   Xorriso_status_result(xorriso,filter,fp,flag&2);
+   Xorriso_status_result(xorriso, dev_filter, fp, flag & 2);
  } else {
+   if(xorriso->drives_exclusive != xorriso->indev_is_exclusive &&
+      xorriso->indev[0] && show_indev) {
+     sprintf(line,"-osirrox o_excl_%s\n",
+             xorriso->indev_is_exclusive ? "on" : "off");
+     Xorriso_status_result(xorriso, NULL, fp, flag & 2);
+   }
    sprintf(line,"-indev %s\n", Text_shellsafe(xorriso->indev,sfe,0));
-   Xorriso_status_result(xorriso,filter,fp,flag&2);
+   Xorriso_status_result(xorriso, dev_filter, fp, flag & 2);
+   if(xorriso->drives_exclusive != xorriso->indev_is_exclusive &&
+      xorriso->indev[0] && show_indev) {
+     sprintf(line,"-osirrox o_excl_%s\n",
+             xorriso->drives_exclusive ? "on" : "off");
+     Xorriso_status_result(xorriso, NULL, fp, flag & 2);
+   }
+
+   if(xorriso->drives_exclusive != xorriso->outdev_is_exclusive &&
+      xorriso->outdev[0] && show_outdev) {
+     sprintf(line,"-osirrox o_excl_%s\n",
+             xorriso->outdev_is_exclusive ? "on" : "off");
+     Xorriso_status_result(xorriso, NULL, fp, flag & 2);
+   }
    sprintf(line,"-outdev %s\n", Text_shellsafe(xorriso->outdev,sfe,0));
-   Xorriso_status_result(xorriso,filter,fp,flag&2);
+   Xorriso_status_result(xorriso, dev_filter, fp, flag & 2);
+   if(xorriso->drives_exclusive != xorriso->outdev_is_exclusive &&
+      xorriso->outdev[0] && show_outdev) {
+     sprintf(line,"-osirrox o_excl_%s\n",
+             xorriso->drives_exclusive ? "on" : "off");
+     Xorriso_status_result(xorriso, NULL, fp, flag & 2);
+   }
  }
 
  return(1);
@@ -12680,6 +12725,23 @@ int Xorriso_append_scdbackup_record(struct XorrisO *xorriso, int flag)
 }
 
 
+int Xorriso_may_burn(struct XorrisO *xorriso, int flag)
+{
+
+ if(xorriso->outdev_is_exclusive)
+   return(1);
+ sprintf(xorriso->info_text, "The output drive was not aquired exclusively.");
+ Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+ sprintf(xorriso->info_text, "A possible remedy is: -ossirox 'o_excl_on'");
+ if(xorriso->outdev[0]) {
+   strcat(xorriso->info_text," -outdev ");
+   Text_shellsafe(xorriso->outdev, xorriso->info_text, 1);
+ }
+ Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
+ return(0);
+}
+
+
 /* ---------------------------- Options API ------------------------ */
 
 
@@ -17230,6 +17292,10 @@ int Xorriso_option_osirrox(struct XorrisO *xorriso, char *mode, int flag)
      xorriso->do_restore_sort_lba= 1;
    else if(strncmp(cpt, "sort_lba_off", l)==0)
      xorriso->do_restore_sort_lba= 0;
+   else if(strncmp(cpt, "o_excl_off", l)==0)
+     xorriso->drives_exclusive= 0;
+   else if(strncmp(cpt, "o_excl_on", l)==0)
+     xorriso->drives_exclusive= 1;
    else {
 unknown_mode:;
      sprintf(xorriso->info_text, "-osirrox: unknown mode '%s'", cpt);

xorriso/xorriso_private.h

@@ -204,12 +204,16 @@ struct XorrisO { /* the global context of xorriso */
                         */
  char image_start_value[81]; /* value according image_start_mode */
 
+ int drives_exclusive;   /* burn_preset_device_open() param exclusive */
+
  int do_calm_drive;      /* bit0= calm down drive after aquiring it */
 
  char indev[SfileadrL];
  void *in_drive_handle;  /* interpreted only by xorrisoburn.c */
  void *in_volset_handle; /* interpreted only by xorrisoburn.c */
  char *in_charset;       /* The charset to interpret the filename bytes */
+ int indev_is_exclusive;
+
  time_t isofs_st_out;    /* A time point at least 1 second before image
                             composition began. To be stored with image as
                             xattr "isofs.st". */
@@ -229,6 +233,7 @@ struct XorrisO { /* the global context of xorriso */
  int dev_fd_1; /* The fd which substitutes for /dev/fd/1 and is
                      connected to externaly perveived stdout.
                   */
+ int outdev_is_exclusive;
 
  int grow_blindly_msc2; /* if >= 0 this causes growing from drive to drive.
                            The value is used as block address offset for
@@ -691,6 +696,8 @@ int Xorriso_report_md5_outcome(struct XorrisO *xorriso, char *severity,
 
 int Xorriso_append_scdbackup_record(struct XorrisO *xorriso, int flag);
 
+int Xorriso_may_burn(struct XorrisO *xorriso, int flag);
+
 
 int Sfile_str(char target[SfileadrL], char *source, int flag);
 

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2009.09.17.144849"
+#define Xorriso_timestamP "2009.09.19.161026"

xorriso/xorrisoburn.c

@@ -1001,16 +1001,20 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
    if(ret<=0)
      goto ex;
    ret= burn_drive_equals_adr(out_drive, libburn_adr, 1);
-   if(ret==1)
+   if(ret==1) {
      dinfo= out_dinfo;
+     xorriso->indev_is_exclusive= xorriso->outdev_is_exclusive;
+   }
  } 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 outdev with indev", 0);
    if(ret<=0)
      goto ex;
    ret= burn_drive_equals_adr(in_drive, libburn_adr, 1);
-   if(ret==1)
+   if(ret==1) {
      dinfo= in_dinfo;
+     xorriso->outdev_is_exclusive= xorriso->indev_is_exclusive;
+   }
  }
 
  if(dinfo==NULL) {
@@ -1019,7 +1023,9 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
      aquire_flag|= 32;
    if((xorriso->ino_behavior & (1 | 2)) && !(xorriso->do_aaip & (4 | 32)))
      aquire_flag|= 64;
+   burn_preset_device_open(xorriso->drives_exclusive, 0, 0);
    ret= isoburn_drive_aquire(&dinfo, libburn_adr, aquire_flag);
+   burn_preset_device_open(1, 0, 0);
    Xorriso_process_msg_queues(xorriso,0);
    if(ret<=0) {
      sprintf(xorriso->info_text,"Cannot aquire drive '%s'", adr); 
@@ -1029,6 +1035,10 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
    if(flag&1)
      if(xorriso->image_start_mode&(1<<31)) /* used up setting */
        xorriso->image_start_mode= 0; /* no need to perform auto setting */
+   if(flag & 1)
+     xorriso->indev_is_exclusive= xorriso->drives_exclusive;
+   if(flag & 2)
+     xorriso->outdev_is_exclusive= xorriso->drives_exclusive;
  }
  drive= dinfo[0].drive;
  if(flag&1) {
@@ -1289,7 +1299,7 @@ ex:
 */
 int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
 {
- int in_is_out_too, ret;
+ int in_is_out_too, ret, do_eject;
  struct burn_drive_info *dinfo;
  struct burn_drive *drive;
  char sfe[5*SfileadrL];
@@ -1309,8 +1319,15 @@ int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
                              "on attempt to give up drive", 0);
 
    if(!in_is_out_too) {
+     do_eject= !!(flag&4);
+     if((flag & 4) && !xorriso->indev_is_exclusive) {
+       sprintf(xorriso->info_text,
+               "Will not eject media in non-exclusively aquired input drive.");
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
+       do_eject= 0;
+     }
      if(drive!=NULL)
-       isoburn_drive_release(drive,!!(flag&4));
+       isoburn_drive_release(drive, do_eject);
      if(dinfo!=NULL)
        burn_drive_info_free(dinfo);
    }
@@ -1333,11 +1350,18 @@ int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
    in_is_out_too= 0;
  }
  if((flag&2) && xorriso->out_drive_handle!=NULL) {
+   do_eject= !!(flag&4);
+   if((flag & 4) && !xorriso->outdev_is_exclusive) {
+     sprintf(xorriso->info_text,
+             "Will not eject media in non-exclusively aquired output drive.");
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
+     do_eject= 0;
+   }
    Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                              "on attempt to give up drive", 2);
    if(!in_is_out_too) {
      if(drive!=NULL)
-       isoburn_drive_release(drive,!!(flag&4));
+       isoburn_drive_release(drive, do_eject);
      if(dinfo!=NULL)
        burn_drive_info_free(dinfo);
    }
@@ -1543,6 +1567,10 @@ int Xorriso_auto_format(struct XorrisO *xorriso, int flag)
  off_t size;
  unsigned dummy;
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
+
  ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                 "on attempt to autoformat", 2);
  if(ret<=0)
@@ -1949,6 +1977,10 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
    goto ex;
  }
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   goto ex;
+
  xorriso->run_state= 1; /* Indicate that burning has started */
  isoburn_disc_write(burn_options, disc);
  burn_write_opts_free(burn_options);
@@ -5608,6 +5640,9 @@ int Xorriso_blank_media(struct XorrisO *xorriso, int flag)
  time_t start_time;
  char mode_names[4][80]= {"all", "fast", "deformat", "deformat_quickest"};
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
  ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                 "on attempt to -blank", 2);
  if(ret<=0)
@@ -5712,6 +5747,9 @@ int Xorriso_format_media(struct XorrisO *xorriso, off_t in_size, int flag)
  time_t start_time;
  enum burn_disc_status disc_state;
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
  ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                 "on attempt to -format", 2);
  if(ret<=0)
@@ -5864,6 +5902,9 @@ int Xorriso_blank_as_needed(struct XorrisO *xorriso, int flag)
  char current_profile_name[80];
  off_t size;
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
  ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                 "on attempt to blank or format", 2);
  if(ret<=0)
@@ -8717,6 +8758,9 @@ int Xorriso_update_iso_lba0(struct XorrisO *xorriso, int iso_lba, int isosize,
  struct burn_drive *drive;
  off_t seek_ret;
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
  if(flag & 1) {
    ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
                                  "on attempt to learn current session lba", 1);
@@ -8838,6 +8882,9 @@ int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
  char reasons[BURN_REASONS_LEN], sfe[5*SfileadrL], profile_name[80];
  char head_buffer[64*1024];
 
+ ret= Xorriso_may_burn(xorriso, 0);
+ if(ret <= 0)
+   return(0);
  ret= Xorriso_auto_format(xorriso, 0);
  if(ret <=0 )
    return(0);
@@ -10447,7 +10494,9 @@ int Xorriso_mount(struct XorrisO *xorriso, char *dev, int adr_mode,
      {ret= -1; goto ex;}
    if(ret == 0 && strncmp(dev, "stdio:", 6) != 0)
      sprintf(libburn_adr, "stdio:%s", dev);
+   burn_preset_device_open(xorriso->drives_exclusive, 0, 0);
    ret= isoburn_drive_aquire(&dinfo, libburn_adr, 1);
+   burn_preset_device_open(1, 0, 0);
    Xorriso_process_msg_queues(xorriso,0);
    if(ret <= 0)
      {ret= 0; goto ex;}