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Correcting previous commit for supporting multi-session

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This commit is contained in:
Thomas Schmitt 2017-08-21 12:34:13 +02:00
parent 2a64d89e6e
commit a7152f5794
1 changed files with 12 additions and 3 deletions
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15
libisofs/fs_image.c
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@ -325,6 +325,11 @@ typedef struct
*/ */
int aaip_version; int aaip_version;
/**
* Start block of loaded session.
*/
uint32_t session_lba;
/** /**
* Number of blocks of the volume, as reported in the PVM. * Number of blocks of the volume, as reported in the PVM.
*/ */
@ -1577,7 +1582,8 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
SuspIterator *iter; SuspIterator *iter;
iter = susp_iter_new(fsdata->src, record, fsdata->nblocks, iter = susp_iter_new(fsdata->src, record,
fsdata->session_lba + fsdata->nblocks,
fsdata->len_skp, fsdata->msgid); fsdata->len_skp, fsdata->msgid);
if (iter == NULL) { if (iter == NULL) {
{ret = ISO_OUT_OF_MEM; goto ex;} {ret = ISO_OUT_OF_MEM; goto ex;}
@ -2404,8 +2410,8 @@ int read_root_susp_entries(_ImageFsData *data, uint32_t block)
* In that case, we need to set info->len_skp to 15!! * In that case, we need to set info->len_skp to 15!!
*/ */
iter = susp_iter_new(data->src, record, data->nblocks, data->len_skp, iter = susp_iter_new(data->src, record, data->session_lba + data->nblocks,
data->msgid); data->len_skp, data->msgid);
if (iter == NULL) { if (iter == NULL) {
ret = ISO_OUT_OF_MEM; goto ex; ret = ISO_OUT_OF_MEM; goto ex;
} }
@ -2602,6 +2608,9 @@ int read_pvm(_ImageFsData *data, uint32_t block)
data->effective_time = data->effective_time =
iso_util_strcopy_untail((char*) pvm->vol_effective_time, 17); iso_util_strcopy_untail((char*) pvm->vol_effective_time, 17);
data->session_lba = 0;
if (block >= 16) /* The session begins 16 blocks before the PVD */
data->session_lba = block - 16;
data->nblocks = iso_read_bb(pvm->vol_space_size, 4, NULL); data->nblocks = iso_read_bb(pvm->vol_space_size, 4, NULL);
rootdr = (struct ecma119_dir_record*) pvm->root_dir_record; rootdr = (struct ecma119_dir_record*) pvm->root_dir_record;