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Augmented structs isoburn, isoburn_toc_entry, isoburn_imgen_opts for long block addresses

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This commit is contained in:
Thomas Schmitt 2024-03-09 19:08:11 +01:00
parent 280c78a2a6
commit c1e563341d
4 changed files with 74 additions and 30 deletions
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67
libisoburn/burn_wrap.c
View File

@ -6,7 +6,7 @@
*/
/* libburn wrappers for libisoburn
Copyright 2007 - 2017 Thomas Schmitt, <scdbackup@gmx.net>
Copyright 2007 - 2024 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
*/
@ -786,7 +786,7 @@ off_t isoburn_disc_available_space(struct burn_drive *d,
return((off_t) 0);
local_opts= burn_write_opts_new(d);
eff_opts= local_opts;
burn_write_opts_set_start_byte(eff_opts, ((off_t) o->nwa) * (off_t) 2048);
burn_write_opts_set_start_byte(eff_opts, o->nwa * (off_t) 2048);
}
avail= burn_disc_available_space(d, eff_opts);
if(local_opts!=NULL)
@ -1251,7 +1251,7 @@ int isoburn_report_iso_error(int iso_error_code, char msg_text[], int os_errno,
@return 1 seems to be a valid ISO image , 0 format not recognized, <0 error
*/
int isoburn_read_iso_head_parse(unsigned char *data,
int *image_blocks, char *info, int flag)
off_t *image_blocks, char *info, int flag)
{
int i, info_mode;
@ -1300,8 +1300,8 @@ int isoburn_read_iso_head_parse(unsigned char *data,
@return 1 seems to be a valid ISO image , 2 found in first half buffer,
0 format not recognized, <0 error
*/
int isoburn_read_iso_head(struct burn_drive *d, int lba,
int *image_blocks, char *info, int flag)
int isoburn_read_iso_head_v2(struct burn_drive *d, off_t lba,
off_t *image_blocks, char *info, int flag)
{
unsigned char *buffer= NULL;
int ret, info_mode, capacity, role;
@ -1368,6 +1368,25 @@ ex:;
}
int isoburn_read_iso_head(struct burn_drive *d, int lba,
int *image_blocks, char *info, int flag)
{
int ret;
off_t long_lba, long_image_blocks;
long_lba= lba;
ret= isoburn_read_iso_head_v2(d, long_lba, &long_image_blocks, info, flag);
if(ret <= 0)
return(ret);
if(long_image_blocks > 0x7fffffff) {
*image_blocks= 0x7fffffff;
return(0);
}
*image_blocks= long_image_blocks;
return(ret);
}
int isoburn_make_toc_entry(struct isoburn *o, int *session_count, int lba,
int track_blocks, char *volid, int flag)
{
@ -1901,19 +1920,40 @@ void isoburn_toc_disc_free(struct isoburn_toc_disc *d)
}
int isoburn_get_track_lba(struct isoburn_toc_track *track, int *lba, int flag)
int isoburn_get_track_lba_v2(struct isoburn_toc_track *track, off_t *lba,
int flag)
{
struct burn_toc_entry entry;
isoburn_toc_track_get_entry(track, &entry);
if (entry.extensions_valid & 1)
if (entry.extensions_valid & 8) {
*lba= entry.long_start_lba;
} else if (entry.extensions_valid & 1) {
*lba= entry.start_lba;
else
} else {
*lba= burn_msf_to_lba(entry.pmin, entry.psec, entry.pframe);
}
return(1);
}
int isoburn_get_track_lba(struct isoburn_toc_track *track, int *lba, int flag)
{
off_t long_lba;
int ret;
ret= isoburn_get_track_lba_v2(track, &long_lba, flag);
if(ret <= 0)
return(ret);
if(long_lba > 0x7fffffff) {
*lba= 0x7fffffff;
return(0);
}
*lba= long_lba;
return(ret);
}
int isoburn_drive_set_msgs_submit(struct burn_drive *d,
int (*msgs_submit)(void *handle, int error_code,
char msg_text[], int os_errno,
@ -1953,6 +1993,7 @@ int isoburn_set_msc1(struct burn_drive *d, int adr_mode, char *adr_value,
regex_t re;
regmatch_t match[1];
enum burn_disc_status s;
off_t long_size;
ret= isoburn_find_emulator(&o, d, 0);
if(ret<0)
@ -1987,7 +2028,7 @@ not_found:;
&num_tracks);
if(tracks==NULL || num_tracks<=0)
goto not_found;
isoburn_get_track_lba(tracks[0], &(o->fabricated_msc1), 0);
isoburn_get_track_lba_v2(tracks[0], &(o->fabricated_msc1), 0);
} else if(adr_mode==1) {
/* Use adr_num as session index (first session is 1, not 0) */
@ -1996,7 +2037,7 @@ not_found:;
tracks= isoburn_toc_session_get_tracks(sessions[adr_num-1], &num_tracks);
if(tracks==NULL || num_tracks<=0)
goto not_found;
isoburn_get_track_lba(tracks[0], &(o->fabricated_msc1), 0);
isoburn_get_track_lba_v2(tracks[0], &(o->fabricated_msc1), 0);
} else if(adr_mode==2) {
/* use adr_num as track index */
@ -2008,7 +2049,7 @@ not_found:;
for(j= 0; j<num_tracks; j++) {
total_tracks++;
if(total_tracks==adr_num) {
isoburn_get_track_lba(tracks[j], &(o->fabricated_msc1), 0);
isoburn_get_track_lba_v2(tracks[j], &(o->fabricated_msc1), 0);
ret= 1; goto ex;
}
}
@ -2027,7 +2068,9 @@ not_found:;
}
if((flag & 1) && o->fabricated_msc1 >= 16) {
/* adr_num is possibly 16 blocks too high */
ret= isoburn_read_iso_head(d, o->fabricated_msc1, &size,volid, 1|(1<<14));
ret= isoburn_read_iso_head_v2(d, o->fabricated_msc1, &long_size, volid,
1 | (1 << 14));
size= long_size;
if(ret==2)
o->fabricated_msc1-= 16;
}

20
libisoburn/isoburn.h
View File

@ -3,7 +3,7 @@
Class struct of libisoburn.
Copyright 2007 - 2009 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
Copyright 2007 - 2023 Thomas Schmitt <scdbackup@gmx.net>
Copyright 2007 - 2024 Thomas Schmitt <scdbackup@gmx.net>
Provided under GPL version 2 or later.
*/
@ -27,8 +27,8 @@
struct isoburn_toc_entry {
int session;
int track_no; /* point */
int start_lba;
int track_blocks;
off_t start_lba;
off_t track_blocks;
char *volid; /* For caching a volume id from emulated toc on overwritables */
struct isoburn_toc_entry *next;
@ -82,26 +82,26 @@ struct isoburn {
/* If >= 0, this address is used as reply for isoburn_disc_get_msc1()
*/
int fabricated_msc1;
off_t fabricated_msc1;
/* If >= 0, this address is used in isoburn_disc_track_lba_nwa()
as reply parameter nwa.
(The other nwa parameters below apply only to the effective write address
on random access media. msc2 is handed to libisofs but not to libburn.)
*/
int fabricated_msc2;
off_t fabricated_msc2;
/* The nwa to be used for a first session on the present kind of overwritable
media (usually Libisoburn_overwriteable_starT, but might be forced to 0)
*/
int zero_nwa;
off_t zero_nwa;
/* Start address as given by image examination (bytes, not blocks) */
off_t min_start_byte;
/* Aligned start address to be used for processing (counted in blocks) */
int nwa;
off_t nwa;
/* Truncate to .nwa an eventual regular file serving as output drive */
@ -142,7 +142,7 @@ struct isoburn {
IsoImage *image;
/* The start LBA of the image */
int image_start_lba;
off_t image_start_lba;
/* The block data source from which the existing image is read.
*/
@ -629,14 +629,14 @@ struct isoburn_imgen_opts {
If <0 : Invalid
If >=0: Valid block number. Block size is always 2 KiB.
*/
int effective_lba;
off_t effective_lba;
/** Output value: Block address of data section start as predicted by
libisofs.
If < 16: Invalid
If >=16: Valid block number. Block size is always 2 KiB.
*/
int data_start_lba;
off_t data_start_lba;
/**
* If not empty: Parameters "name" and "timestamp" for a scdbackup stream

13
libisoburn/isofs_wrap.c
View File

@ -7,7 +7,7 @@
libisofs related functions of libisoburn.
Copyright 2007 - 2009 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
Copyright 2007 - 2020 Thomas Schmitt <scdbackup@gmx.net>
Copyright 2007 - 2024 Thomas Schmitt <scdbackup@gmx.net>
Provided under GPL version 2 or later.
*/
@ -796,7 +796,8 @@ ex:;
*/
int isoburn_start_emulation(struct isoburn *o, int flag)
{
int ret, i, capacity = -1, role, dummy;
int ret, i, role;
off_t capacity = -1, dummy;
off_t data_count, to_read;
struct burn_drive *drive;
struct ecma119_pri_vol_desc *pvm;
@ -824,13 +825,13 @@ int isoburn_start_emulation(struct isoburn *o, int flag)
The data there point to the most recent session.
*/
role = burn_drive_get_drive_role(drive);
ret = burn_get_read_capacity(drive, &capacity, 0);
ret = burn_get_read_capacity_v2(drive, &capacity, 0);
if (ret <= 0)
capacity = -1;
if (role == 5) { /* random access write-only medium */
s = burn_disc_get_status(drive);
o->fabricated_disc_status= s;
burn_disc_track_lba_nwa(drive, NULL, 0, &dummy, &(o->nwa));
burn_disc_track_lba_nwa_v2(drive, NULL, 0, &dummy, &(o->nwa));
if(o->nwa < o->zero_nwa)
o->zero_nwa= 0;
{ret= 1; goto ex;}
@ -839,8 +840,8 @@ int isoburn_start_emulation(struct isoburn *o, int flag)
size. Try to read anyway. */
to_read = o->target_iso_head_size;
memset(o->target_iso_head, 0, to_read);
if(capacity > 0 && (off_t) capacity * (off_t) 2048 < to_read)
to_read = (off_t) capacity * (off_t) 2048;
if(capacity > 0 && capacity * (off_t) 2048 < to_read)
to_read = capacity * (off_t) 2048;
ret = burn_read_data(drive, (off_t) 0, (char*)o->target_iso_head,
to_read, &data_count, 32 | 8);
if (ret <= 0) {

2
xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2024.03.09.170230"
#define Xorriso_timestamP "2024.03.09.180620"