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| author | Mattias Andrée <maandree@kth.se> | 2017-01-14 10:05:50 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2017-01-14 10:06:45 +0100 |
| commit | 9783831e37ca5718e20259be70c23e229d3583c4 (patch) | |
| tree | 6b40fd7a0337be63a8849a22a893c2f1dc76304f /src | |
| parent | blind-split: fix error check (diff) | |
| download | blind-9783831e37ca5718e20259be70c23e229d3583c4.tar.gz blind-9783831e37ca5718e20259be70c23e229d3583c4.tar.bz2 blind-9783831e37ca5718e20259be70c23e229d3583c4.tar.xz | |
Fix offset bug in blind-reverse and add example
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src')
| -rw-r--r-- | src/blind-reverse.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/blind-reverse.c b/src/blind-reverse.c index b6e456a..619a490 100644 --- a/src/blind-reverse.c +++ b/src/blind-reverse.c @@ -26,12 +26,14 @@ main(int argc, char *argv[]) frame_size = stream.width * stream.height * stream.pixel_size; if (stream.frames > SSIZE_MAX / frame_size) eprintf("%s: video is too large\n", stream.file); + if (stream.frames * frame_size > SSIZE_MAX - stream.headlen) + eprintf("%s: video is too large\n", stream.file); #if defined(POSIX_FADV_RANDOM) posix_fadvise(stream.fd, 0, 0, POSIX_FADV_RANDOM); #endif while (stream.frames--) { - ptr = stream.frames * frame_size; + ptr = stream.frames * frame_size + stream.headlen; end = ptr + frame_size; while (ptr < end) { r = pread(stream.fd, buf, sizeof(buf), ptr); |