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Code Issues Releases Activity

avcodec/dvdsubdec: Check all fseek()s return codes

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Fixes CID1254660

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-11-16 17:38:46 +01:00
parent 530eb6acf8
commit 1de786777e
1 changed files with 12 additions and 3 deletions
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15
libavcodec/dvdsubdec.c
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@ -605,13 +605,22 @@ static int parse_ifo_palette(DVDSubContext *ctx, char *p)
ret = AVERROR_INVALIDDATA;
goto end;
}
fseek(ifo, 0xCC, SEEK_SET);
if (fseek(ifo, 0xCC, SEEK_SET) == -1) {
ret = AVERROR(errno);
goto end;
}
if (fread(&sp_pgci, 4, 1, ifo) == 1) {
pgci = av_be2ne32(sp_pgci) * 2048;
fseek(ifo, pgci + 0x0C, SEEK_SET);
if (fseek(ifo, pgci + 0x0C, SEEK_SET) == -1) {
ret = AVERROR(errno);
goto end;
}
if (fread(&off_pgc, 4, 1, ifo) == 1) {
pgc = pgci + av_be2ne32(off_pgc);
fseek(ifo, pgc + 0xA4, SEEK_SET);
if (fseek(ifo, pgc + 0xA4, SEEK_SET) == -1) {
ret = AVERROR(errno);
goto end;
}
if (fread(yuv, 64, 1, ifo) == 1) {
buf = yuv;
for(i=0; i<16; i++) {