Corrected strange behavior with non-ISO images on overwriteable media
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@ -485,6 +485,8 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast)
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{
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int ret;
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struct isoburn *o;
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enum burn_disc_status s;
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char zero_buffer[Libisoburn_target_head_sizE];
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ret= isoburn_find_emulator(&o, drive, 0);
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if(ret>0) {
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@ -494,9 +496,16 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast)
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return;
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}
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if(o->emulation_mode>0) {
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ret= isoburn_invalidate_iso(o, 0);
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s= isoburn_disc_get_status(drive);
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if(s==BURN_DISC_FULL) { /* unknown data format in first 64 kB */
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memset(zero_buffer, 0, Libisoburn_target_head_sizE);
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ret= burn_random_access_write(drive, (off_t) 0, zero_buffer,
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(off_t) Libisoburn_target_head_sizE, 1);
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} else {
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ret= isoburn_invalidate_iso(o, 0);
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}
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if(ret<=0)
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burn_drive_cancel(drive);
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burn_drive_cancel(drive); /* mark run as failure */
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return;
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}
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}
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@ -510,12 +519,16 @@ off_t isoburn_disc_available_space(struct burn_drive *d,
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int ret;
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struct isoburn *o;
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struct burn_write_opts *eff_opts= NULL, *local_opts= NULL;
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enum burn_disc_status s;
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off_t avail;
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eff_opts= opts;
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ret= isoburn_find_emulator(&o, d, 0);
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if(ret>0 && o!=NULL)
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if(o->emulation_mode!=0) {
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s= isoburn_disc_get_status(d);
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if(s==BURN_DISC_FULL) /* unknown data format in first 64 kB */
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return((off_t) 0);
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local_opts= burn_write_opts_new(d);
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eff_opts= local_opts;
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burn_write_opts_set_start_byte(eff_opts, ((off_t) o->nwa) * (off_t) 2048);
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@ -121,7 +121,7 @@ int isoburn_new(struct isoburn **objpt, int flag)
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o->fabricated_disc_status= BURN_DISC_UNREADY;
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o->toc= NULL;
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o->wrote_well= -1;
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for(i=0;i<65536;i++)
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for(i=0;i<Libisoburn_target_head_sizE;i++)
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o->target_iso_head[i]= 0;
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o->image= NULL;
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o->read_pacifier= NULL;
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@ -33,6 +33,11 @@ int isoburn_toc_entry_new(struct isoburn_toc_entry **objpt,
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int isoburn_toc_entry_destroy(struct isoburn_toc_entry **o, int flag);
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/* Size of target_iso_head which is to be written during
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isoburn_activate_session()
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*/
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#define Libisoburn_target_head_sizE (32*2048)
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struct isoburn {
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@ -89,7 +94,7 @@ struct isoburn {
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/* Buffered ISO head from media (should that become part of
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ecma119_read_opts ?) */
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uint8_t target_iso_head[65536];
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uint8_t target_iso_head[Libisoburn_target_head_sizE];
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/* Libisofs image context */
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IsoImage *image;
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@ -368,12 +373,7 @@ struct isoburn_imgen_opts {
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#define Libisoburn_toc_scan_max_gaP 8192
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/* Size of target_iso_head which is to be written during
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isoburn_activate_session()
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*/
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#define Libisoburn_target_head_sizE (32*2048)
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/* >>> Experiment to create a chain of image headers which form a TOC:
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/* Creating a chain of image headers which form a TOC:
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The header of the first session is written after the LBA 0 header.
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So it persists and can give the end of its session. By help of
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@ -283,7 +283,7 @@ int isoburn_activate_session(struct burn_drive *drive)
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o->zero_nwa > 0)))
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return 1;
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ret = burn_random_access_write(drive, 0, (char*)o->target_iso_head,
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ret = burn_random_access_write(drive, (off_t) 0, (char*)o->target_iso_head,
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Libisoburn_target_head_sizE, 1);
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return ret;
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@ -315,7 +315,7 @@ int isoburn_start_emulation(struct isoburn *o, int flag)
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/* we can assume 0 as start block for image */
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/* TODO what about ms? where we validate valid iso image in ms disc? */
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ret = burn_read_data(drive, (off_t) 0, (char*)o->target_iso_head,
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sizeof(o->target_iso_head), &data_count, 2);
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(off_t) Libisoburn_target_head_sizE, &data_count, 2);
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/* an error means an empty disc */
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if (ret <= 0) {
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@ -325,7 +325,7 @@ int isoburn_start_emulation(struct isoburn *o, int flag)
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/* check first 64K. If 0's, the disc is treated as a blank disc, and thus
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overwritten without extra check. */
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i = sizeof(o->target_iso_head);
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i = Libisoburn_target_head_sizE;
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while (i && !o->target_iso_head[i-1])
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--i;
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@ -184,7 +184,8 @@ Closed is the state of DVD-ROM media and of multi-session media which were
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written with option -close on. If the drive is incapable of writing it will
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probably show any media as closed CD-ROM resp. DVD-ROM.
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.br
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Overwriteable media assume this state only in such read-only drives.
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Overwriteable media assume this state in such read-only drives or if they
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contain unrecognizable data in the first 32 data blocks.
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.br
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\fBRead-only\fR drives may or may not show session histories of multi-session
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media. Often only the first and the last session are visible. Sometimes
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@ -1 +1 @@
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#define Xorriso_timestamP "2008.05.13.115901"
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#define Xorriso_timestamP "2008.05.13.135251"
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@ -928,7 +928,7 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
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"-indev differs from -outdev and -outdev media is not blank");
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else
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sprintf(xorriso->info_text,
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"-indev differs from -outdev and -outdev media holds valid ISO image");
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"-indev differs from -outdev and -outdev media holds non-zero data");
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
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{ret= 0; goto ex;}
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}
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@ -2260,7 +2260,7 @@ int Xorriso_toc(struct XorrisO *xorriso, int flag)
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int num_sessions= 0, num_tracks= 0, lba= 0, nwa= -1, pmin, psec, pframe, ret;
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int track_count= 0, session_no, track_no, profile_no= -1, track_size;
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int last_track_start= 0, last_track_size= -1, num_data= 0, is_data= 0;
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int is_inout_drive= 0, drive_role;
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int is_inout_drive= 0, drive_role, status, num_formats;
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int num_payload= 0, num_wasted= 0, num_nondata= 0;
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char profile_name[80],*respt,*devadr;
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struct burn_toc_entry toc_entry;
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@ -2268,7 +2268,8 @@ int Xorriso_toc(struct XorrisO *xorriso, int flag)
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struct burn_drive *drive;
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enum burn_disc_status s;
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char mem_text[80];
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off_t start_byte= 0, num_free= 0;
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off_t start_byte= 0, num_free= 0, size;
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unsigned dummy;
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#ifdef Xorriso_use_isoburn_toC
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struct isoburn_toc_disc *disc= NULL;
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@ -2385,6 +2386,11 @@ int Xorriso_toc(struct XorrisO *xorriso, int flag)
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sprintf(respt, "ISO session : %3d , %9d , %9ds , %s\n",
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1, 0, image_blocks, volume_id);
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} else {
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nwa= 0;
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ret= burn_disc_get_formats(drive, &status, &size, &dummy,
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&num_formats);
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if(ret>0 && status==BURN_FORMAT_IS_FORMATTED)
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nwa= size/2048;
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sprintf(respt, "Other session: %3d , %9d , %9ds , \n",
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1, 0, nwa);
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}
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