Classified media with TOC read error as unsuitable (rather than as blank)

cdrskin/cdrskin.c

@@ -171,6 +171,7 @@ or
 #define Cdrskin_libburn_has_burn_aborT 1
 #define Cdrskin_libburn_has_audioxtR 1
 #define Cdrskin_libburn_has_get_start_end_lbA 1
+#define Cdrskin_libburn_has_burn_disc_unsuitablE 1
 #endif
 
 #ifndef Cdrskin_libburn_versioN
@@ -3156,6 +3157,18 @@ int Cdrskin_report_disc_status(struct CdrskiN *skin, enum burn_disc_status s,
         "BURN_DISC_APPENDABLE \"There is an incomplete disc in the drive\"\n");
  } else if(s==BURN_DISC_EMPTY) {
    printf("BURN_DISC_EMPTY \"There is no disc at all in the drive\"\n");
+ } else if(s==BURN_DISC_UNREADY) {
+   printf("BURN_DISC_UNREADY \"The current status is not yet known\"\n");
+
+#ifdef Cdrskin_libburn_has_burn_disc_unsuitablE
+
+ } else if(s==BURN_DISC_UNGRABBED) {
+   printf("BURN_DISC_UNGRABBED \"API usage error: drive not grabbed\"\n");
+ } else if(s==BURN_DISC_UNSUITABLE) {
+   printf("BURN_DISC_UNSUITABLE \"Media is not suitable\"\n");
+
+#endif /* Cdrskin_libburn_has_burn_disc_unsuitablE */
+
  } else 
    printf("-unknown status code-\n");
  return(1);

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2006.10.20.113421"
+#define Cdrskin_timestamP "2006.10.20.151602"

libburn/drive.c

@@ -45,7 +45,8 @@ void burn_drive_free(struct burn_drive *d)
 		sg_close_drive(d);
 	free((void *) d->idata);
 	free((void *) d->mdata);
-	free((void *) d->toc_entry);
+	if(d->toc_entry != NULL)
+		free((void *) d->toc_entry);
 	free(d->devname);
 	d->global_index = -1;
 }
@@ -162,7 +163,10 @@ int burn_drive_grab(struct burn_drive *d, int le)
 		d->load(d);
 
 	d->lock(d);
-	d->status = BURN_DISC_BLANK;
+
+	/* ts A61020 : this was BURN_DISC_BLANK as pure guess */
+	d->status = BURN_DISC_UNREADY;
+
 	if (d->mdata->cdr_write || d->mdata->cdrw_write ||
 	    d->mdata->dvdr_write || d->mdata->dvdram_write) {
 
@@ -186,6 +190,8 @@ int burn_drive_grab(struct burn_drive *d, int le)
 			old_erasable = new_erasable;
 
 			d->read_disc_info(d);
+			if(d->status == BURN_DISC_UNSUITABLE)
+		break;
 
 			new_speed = burn_drive_get_write_speed(d);
 			new_erasable = burn_disc_erasable(d);
@@ -309,7 +315,7 @@ void burn_drive_release(struct burn_drive *d, int le)
 
 	d->status = BURN_DISC_UNREADY;
 	d->released = 1;
-	if (d->toc_entry)
+	if (d->toc_entry != NULL)
 		free(d->toc_entry);
 	d->toc_entry = NULL;
 	d->toc_entries = 0;
@@ -1118,3 +1124,15 @@ int burn_drive_get_start_end_lba(struct burn_drive *d,
 	*end_lba= d->end_lba;
 	return 1;
 }
+
+
+/* ts A61020 API function */
+int burn_disc_pretend_blank(struct burn_drive *d)
+{
+	if (d->status != BURN_DISC_UNREADY && 
+	    d->status != BURN_DISC_UNSUITABLE)
+		return 0;
+	d->status = BURN_DISC_BLANK;
+	return 1;
+}
+

libburn/libburn.h

@@ -176,7 +176,11 @@ enum burn_disc_status
 
 	/* ts A61007 */
 	/** The drive was not grabbed when the status was inquired */
-	BURN_DISC_UNGRABBED
+	BURN_DISC_UNGRABBED,
+
+	/* ts A61020 */
+	/** The media seems not to be suitable for burning */
+	BURN_DISC_UNSUITABLE
 };
 
 
@@ -628,6 +632,16 @@ void burn_drive_release(struct burn_drive *drive, int eject);
 enum burn_disc_status burn_disc_get_status(struct burn_drive *drive);
 
 
+/* ts A61020 */
+/** WARNING: This revives an old bug-like behavior that might be dangerous.
+    Sets the drive status to BURN_DISC_BLANK if it is BURN_DISC_UNREADY
+    or BURN_DISC_UNSUITABLE. Thus marking media as writable which actually
+    failed to declare themselves either blank or (partially) filled.
+    @return 1 drive status has been set , 0 = unsuitable drive status
+*/
+int burn_disc_pretend_blank(struct burn_drive *d);
+
+
 /* ts A61020 */
 /** Returns start and end lba of the media which is currently inserted
     in the given drive. The drive has to be grabbed to have hope for reply.

libburn/libdax_msgs.h

@@ -318,7 +318,7 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x0002010a (FATAL,HIGH)   = Unsuitable track mode
  0x0002010b (FATAL,HIGH)   = Burn run failed
  0x0002010c (FATAL,HIGH)   = Failed to transfer command to drive
- 0x0002010d
+ 0x0002010d (DEBUG,HIGH)   = Could not inquire TOC
  0x0002010e
  0x0002010f
  0x00020110 (FATAL,HIGH)   = Persistent drive address too long

libburn/mmc.c

@@ -286,7 +286,23 @@ void mmc_read_toc(struct burn_drive *d)
 	d->issue_command(d, &c);
 
 	if (c.error) {
+
+		/* ts A61020 : this snaps on non-blank DVD media */
+		/* Very unsure wether this old measure is ok.
+		   Obviously higher levels do not care about this.
+		   DVD+RW burns go on after passing through here.
+
 		d->busy = BURN_DRIVE_IDLE;
+		*/
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+			 0x0002010d,
+			 LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
+			 "Could not inquire TOC (non-blank DVD media ?)", 0,0);
+		d->status = BURN_DISC_UNSUITABLE;
+		d->toc_entries = 0;
+		/* Prefering memory leaks over fandangos */
+		d->toc_entry = malloc(sizeof(struct burn_toc_entry));
+
 		return;
 	}