#include <unistd.h>
#endif
+#ifdef USE_LIBRETRO_VFS
+#include <streams/file_stream_transforms.h>
+#undef fseeko
+#undef ftello
+#define ftello rftell
+#define fseeko rfseek
+#endif
+
#define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1))
unsigned int cdrIsoMultidiskCount;
}
}
// check if it's really a TOC named as a .cue
- fgets(linebuf, sizeof(linebuf), fi);
- token = strtok(linebuf, " ");
- if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
- fclose(fi);
- return -1;
+ if (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
+ token = strtok(linebuf, " ");
+ if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
+ fclose(fi);
+ return -1;
+ }
}
fseek(fi, 0, SEEK_SET);
}
memset(&ti, 0, sizeof(ti));
// check if it's a valid mds file
- fread(&i, 1, sizeof(unsigned int), fi);
+ if (fread(&i, 1, sizeof(i), fi) != sizeof(i))
+ goto fail_io;
i = SWAP32(i);
if (i != 0x4944454D) {
// not an valid mds file
// get offset to session block
fseek(fi, 0x50, SEEK_SET);
- fread(&offset, 1, sizeof(unsigned int), fi);
+ if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset))
+ goto fail_io;
offset = SWAP32(offset);
// get total number of tracks
offset += 14;
fseek(fi, offset, SEEK_SET);
- fread(&s, 1, sizeof(unsigned short), fi);
+ if (fread(&s, 1, sizeof(s), fi) != sizeof(s))
+ goto fail_io;
s = SWAP16(s);
numtracks = s;
// get offset to track blocks
fseek(fi, 4, SEEK_CUR);
- fread(&offset, 1, sizeof(unsigned int), fi);
+ if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset))
+ goto fail_io;
offset = SWAP32(offset);
// skip lead-in data
ti[i].start[1] = fgetc(fi);
ti[i].start[2] = fgetc(fi);
- fread(&extra_offset, 1, sizeof(unsigned int), fi);
+ if (fread(&extra_offset, 1, sizeof(extra_offset), fi) != sizeof(extra_offset))
+ goto fail_io;
extra_offset = SWAP32(extra_offset);
// get track start offset (in .mdf)
fseek(fi, offset + 0x28, SEEK_SET);
- fread(&l, 1, sizeof(unsigned int), fi);
+ if (fread(&l, 1, sizeof(l), fi) != sizeof(l))
+ goto fail_io;
l = SWAP32(l);
ti[i].start_offset = l;
// get pregap
fseek(fi, extra_offset, SEEK_SET);
- fread(&l, 1, sizeof(unsigned int), fi);
+ if (fread(&l, 1, sizeof(l), fi) != sizeof(l))
+ goto fail_io;
l = SWAP32(l);
if (l != 0 && i > 1)
pregapOffset = msf2sec(ti[i].start);
// get the track length
- fread(&l, 1, sizeof(unsigned int), fi);
+ if (fread(&l, 1, sizeof(l), fi) != sizeof(l))
+ goto fail_io;
l = SWAP32(l);
sec2msf(l, ti[i].length);
offset += 0x50;
}
-
fclose(fi);
return 0;
+fail_io:
+#ifndef NDEBUG
+ SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__);
+#endif
+ fclose(fi);
+ return -1;
}
static int handlepbp(const char *isofile) {
}
psisoimg_offs = pbp_hdr.psar_offs;
- fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
+ if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig))
+ goto fail_io;
psar_sig[10] = 0;
if (strcmp(psar_sig, "PSTITLEIMG") == 0) {
// multidisk image?
goto fail_io;
}
- fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
+ if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig))
+ goto fail_io;
psar_sig[10] = 0;
}
// first 3 entries are special
fseek(cdHandle, sizeof(toc_entry), SEEK_CUR);
- fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
+ if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry))
+ goto fail_io;
numtracks = btoi(toc_entry.index1[0]);
- fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
+ if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry))
+ goto fail_io;
cd_length = btoi(toc_entry.index1[0]) * 60 * 75 +
btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]);
for (i = 1; i <= numtracks; i++) {
- fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
+ if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry))
+ goto fail_io;
ti[i].type = (toc_entry.type == 1) ? CDDA : DATA;
fail_index:
free(compr_img->index_table);
compr_img->index_table = NULL;
+ goto done;
+
fail_io:
+#ifndef NDEBUG
+ SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__);
+#endif
+
+done:
if (compr_img != NULL) {
free(compr_img);
compr_img = NULL;
fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET);
ret = fread(dest, 1, CD_FRAMESIZE_RAW, f);
- fread(subbuffer, 1, SUB_FRAMESIZE, f);
+ if (fread(subbuffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE)
+ goto fail_io;
if (subChanRaw) DecodeRawSubData();
+ goto done;
+
+fail_io:
+#ifndef NDEBUG
+ SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__);
+#endif
+done:
return ret;
}
if (ftello(cdHandle) % 2048 == 0) {
unsigned int modeTest = 0;
fseek(cdHandle, 0, SEEK_SET);
- fread(&modeTest, 4, 1, cdHandle);
+ if (fread(&modeTest, sizeof(modeTest), 1, cdHandle) != sizeof(modeTest)) {
+#ifndef NDEBUG
+ SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__);
+#endif
+ return -1;
+ }
if (SWAP32(modeTest) != 0xffffff00) {
strcat(image_str, "[2048]");
isMode1ISO = TRUE;
if (subHandle != NULL) {
fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET);
- fread(subbuffer, 1, SUB_FRAMESIZE, subHandle);
+ if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE)
+ /* Faulty subchannel data shouldn't cause a read failure */
+ return 0;
if (subChanRaw) DecodeRawSubData();
}