Letting isoburn_disc_erase() invalidate UDF extended descriptors if present

libisoburn/isofs_wrap.c

@@ -670,11 +670,32 @@ ex:;
 */
 int isoburn_invalidate_iso(struct isoburn *o, int flag)
 {
+ int end_ed_found= 0, i;
+ char *head;
+
+ head= (char *) o->target_iso_head;
  /* 
   * replace CD001 with CDXX1 in PVM.
   * I think this is enought for invalidating an iso image
   */
- strncpy((char*)o->target_iso_head + 16 * 2048 + 1, "CDXX1", 5);
+ strncpy(head + 16 * 2048 + 1, "CDXX1", 5);
+
+ /* Look for UDF volume recognition sequence and invalidate */
+ for(i= 17 * 2048; i < 32 * 2048; i+= 2048) {
+   if(end_ed_found) {
+     if(head[i] == 0 && strncmp(head + i + 1, "BEA01", 5) == 0)
+       strncpy(head + i + 1, "BEAX1", 5);
+     else if(head[i] == 0 && strncmp(head + i + 1, "NSR", 3) == 0)
+       strncpy(head + i + 1, "NSRX", 4);
+     else if(head[i] == 0 && strncmp(head + i + 1, "TEA", 3) == 0) 
+       strncpy(head + i + 1, "TEAX", 4);
+   } else {
+     if(((unsigned char *) head)[i] == 0xff &&
+        strncmp(head + i + 1, "CD001", 5) == 0)
+       end_ed_found= 1;
+   }
+ }
+
  return isoburn_activate_session(o->drive);
 }
 

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2016.04.27.092902"
+#define Xorriso_timestamP "2016.05.03.075722"