New API calls isoburn_get_attached_start_lba(), isoburn_attach_start_lba()

libisoburn/isoburn.c

@@ -142,6 +142,7 @@ int isoburn_new(struct isoburn **objpt, int flag)
  o->target_iso_head_size= Libisoburn_target_head_sizE;
  o->target_iso_head= NULL;
  o->image= NULL;
+ o->image_start_lba= -1;
  o->iso_data_source= NULL;
  o->read_pacifier= NULL;
  o->read_pacifier_handle= NULL;

libisoburn/isoburn.h

@@ -141,6 +141,9 @@ struct isoburn {
  /* Libisofs image context */
  IsoImage *image;
 
+ /* The start LBA of the image */
+ int image_start_lba;
+
  /* The block data source from which the existing image is read.
  */
  IsoDataSource *iso_data_source;

libisoburn/isofs_wrap.c

@@ -105,6 +105,21 @@ IsoImage *isoburn_get_attached_image(struct burn_drive *d)
 }
 
 
+/* API */
+int isoburn_get_attached_start_lba(struct burn_drive *d)
+{
+ int ret;
+ struct isoburn *o= NULL;
+
+ ret = isoburn_find_emulator(&o, d, 0);
+ if (ret < 0 || o == NULL)
+   return -1;
+ if(o->image == NULL)
+   return -1;
+ return o->image_start_lba;
+}
+
+
 static void isoburn_idle_free_function(void *ignored)
 {
  return;
@@ -133,6 +148,7 @@ int isoburn_read_image(struct burn_drive *d,
    if (ret < 0 || o == NULL)
      {ret= 0; goto ex;}
    status = isoburn_disc_get_status(d);
+   o->image_start_lba= -1;
  }
  if(read_opts==NULL) {
    isoburn_msgs_submit(o, 0x00060000,
@@ -193,6 +209,8 @@ create_blank_image:;
  if (ret <= 0)
    {ret= -2; goto ex;}
  ms_block= int_num;
+ if (o != NULL)
+   o->image_start_lba= ms_block;
  ret = isoburn_read_iso_head(d, int_num, &dummy, NULL, 0);
  if (ret <= 0) {
    sprintf(msg, "No ISO 9660 image at LBA %d. Creating blank image.", int_num);
@@ -312,10 +330,29 @@ int isoburn_attach_image(struct burn_drive *d, IsoImage *image)
  if(o->image != NULL)
    iso_image_unref(o->image);
  o->image = image;
+ o->image_start_lba = -1;
  return(1);
 }
 
 
+/* API */
+int isoburn_attach_start_lba(struct burn_drive *d, int lba, int flag)
+{
+ int ret;
+ struct isoburn *o;
+
+ ret = isoburn_find_emulator(&o, d, 0);
+ if(ret < 0)
+   return ret;
+ if(o == NULL)
+   return 0;
+ if(o->image == NULL)
+   return 0;
+ o->image_start_lba = lba;
+ return 1;
+}
+
+
 /* API function. See libisoburn.h
 */
 int isoburn_activate_session(struct burn_drive *drive)

libisoburn/libisoburn.h

@@ -1629,6 +1629,14 @@ int isoburn_igopt_get_disc_label(struct isoburn_imgen_opts *opts,
 */
 IsoImage *isoburn_get_attached_image(struct burn_drive *d);
 
+/** Get the start address of the image that is attached to the drive, if any.
+    @since 1.2.2
+    @param d The drive to inquire
+    @return  The logical block address where the System Area of the image
+             starts. <0 means that the address is invalid.
+*/
+int isoburn_get_attached_start_lba(struct burn_drive *d);
+
 
 /** Load the ISO filesystem directory tree from the medium in the given drive.
     This will give libisoburn the base on which it can let libisofs perform
@@ -1714,6 +1722,17 @@ int isoburn_get_img_partition_offset(struct burn_drive *drive,
 int isoburn_attach_image(struct burn_drive *d, IsoImage *image);
 
 
+/** Set the start address of the image that is attached to the drive, if any.
+    @since 1.2.2
+    @param d    The drive to inquire
+    @param lba  The logical block address where the System Area of the image
+                starts. <0 means that the address is invalid.
+    @param flag Bitfield, submit 0 for now.
+    @return     <=0 error (e.g. because no image is attached), 1 = success
+*/
+int isoburn_attach_start_lba(struct burn_drive *d, int lba, int flag);
+
+
 /** Return the best possible estimation of the currently available capacity of
     the medium. This might depend on particular write option settings and on
     drive state.

libisoburn/libisoburn.ver

@@ -2,6 +2,7 @@ LIBISOBURN1 {
 global:
 isoburn_activate_session;
 isoburn_attach_image;
+isoburn_attach_start_lba;
 isoburn_cancel_prepared_write;
 isoburn_disc_available_space;
 isoburn_disc_erasable;
@@ -18,6 +19,7 @@ isoburn_drive_set_msgs_submit;
 isoburn_drive_wrote_well;
 isoburn_finish;
 isoburn_get_attached_image;
+isoburn_get_attached_start_lba;
 isoburn_get_fifo_status;
 isoburn_get_min_start_byte;
 isoburn_get_mount_params;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2012.02.01.163200"
+#define Xorriso_timestamP "2012.02.14.103107"