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--- ./libcdio-0.92/lib/iso9660/iso9660_fs.c 2018-06-06 11:52:23.464809984 +0200
+++ ../libcdio-fedora/libcdio-0.94/lib/iso9660/iso9660_fs.c 2018-06-05 18:18:31.235215219 +0200
@@ -714,6 +714,7 @@
iso711_t i_fname;
unsigned int stat_len;
iso9660_stat_t *p_stat;
+ bool err;
if (!dir_len) return NULL;
@@ -730,8 +731,16 @@
}
p_stat->type = (p_iso9660_dir->file_flags & ISO_DIRECTORY)
? _STAT_DIR : _STAT_FILE;
- p_stat->lsn = from_733 (p_iso9660_dir->extent);
- p_stat->size = from_733 (p_iso9660_dir->size);
+ p_stat->lsn = from_733_with_err (p_iso9660_dir->extent, &err);
+ if (err) {
+ free(p_stat);
+ return NULL;
+ }
+ p_stat->size = from_733_with_err (p_iso9660_dir->size, &err);
+ if (err) {
+ free(p_stat);
+ return NULL;
+ }
p_stat->secsize = _cdio_len2blocks (p_stat->size, ISO_BLOCKSIZE);
p_stat->rr.b3_rock = dunno; /*FIXME should do based on mask */
p_stat->b_xa = false;
@@ -754,6 +763,7 @@
if (!p_stat_new)
{
cdio_warn("Couldn't calloc(1, %d)", (int)(sizeof(iso9660_stat_t)+i_rr_fname+2));
+ free(p_stat);
return NULL;
}
memcpy(p_stat_new, p_stat, stat_len);
@@ -1098,6 +1108,12 @@
p_stat = _iso9660_dir_to_statbuf (p_iso9660_dir, p_iso->b_xa,
p_iso->u_joliet_level);
+ if (!p_stat) {
+ cdio_warn("Bad directory information for %s", splitpath[0]);
+ free(_dirbuf);
+ return NULL;
+ }
+
cmp = strcmp(splitpath[0], p_stat->filename);
if ( 0 != cmp && 0 == p_iso->u_joliet_level
@@ -1283,12 +1299,15 @@
if (!_dirbuf)
{
cdio_warn("Couldn't calloc(1, %d)", p_stat->secsize * ISO_BLOCKSIZE);
+ _cdio_list_free (retval, true);
return NULL;
}
if (cdio_read_data_sectors (p_cdio, _dirbuf, p_stat->lsn,
- ISO_BLOCKSIZE, p_stat->secsize))
- return NULL;
+ ISO_BLOCKSIZE, p_stat->secsize)) {
+ _cdio_list_free (retval, true);
+ return NULL;
+ }
while (offset < (p_stat->secsize * ISO_BLOCKSIZE))
{
@@ -1401,14 +1417,14 @@
}
free (_dirbuf);
+ free(p_stat->rr.psz_symlink);
- if (offset != (p_stat->secsize * ISO_BLOCKSIZE)) {
- free (p_stat);
+ if (offset != (p_stat->secsize * ISO_BLOCKSIZE)) {
+ free (p_stat);
_cdio_list_free (retval, true);
return NULL;
}
- free (p_stat->rr.psz_symlink);
free (p_stat);
return retval;
}
@@ -1528,6 +1563,16 @@
}
/*!
+ Free the passed iso9660_stat_t structure.
+ */
+void
+iso9660_stat_free(iso9660_stat_t *p_stat)
+{
+ if (p_stat != NULL)
+ free(p_stat);
+}
+
+/*!
Return true if ISO 9660 image has extended attrributes (XA).
*/
bool
@@ -1580,11 +1625,11 @@
if ( have_rr != yep) {
have_rr = iso_have_rr_traverse (p_iso, p_stat, &splitpath[1], pu_file_limit);
}
+ free(p_stat);
if (have_rr != nope) {
free (_dirbuf);
return have_rr;
}
- free(p_stat);
offset += iso9660_get_dir_len(p_iso9660_dir);
*pu_file_limit = (*pu_file_limit)-1;