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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-10-22 22:42:51 +0200 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2014-03-02 11:42:36 -0500 |
| commit | 92edc13d69188de1f12197996334c1cc6e2d12c5 (patch) | |
| tree | bee2560d03117a544f09803ffc3271a7d3a22761 | |
| parent | c9f015f1c6887ffcbfef119ea1e4846b800fdfff (diff) | |
| download | ffmpeg-92edc13d69188de1f12197996334c1cc6e2d12c5.tar.gz | |
qt-faststart: Check fseeko() return codes
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 5612244351b2eb3cb4e6225861a0f55aa5d0c475)
| -rw-r--r-- | tools/qt-faststart.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/tools/qt-faststart.c b/tools/qt-faststart.c index 69818be2da..0abcd2b67c 100644 --- a/tools/qt-faststart.c +++ b/tools/qt-faststart.c @@ -136,22 +136,27 @@ int main(int argc, char *argv[]) atom_size); goto error_out; } - fseeko(infile, -ATOM_PREAMBLE_SIZE, SEEK_CUR); - if (fread(ftyp_atom, atom_size, 1, infile) != 1) { + if (fseeko(infile, -ATOM_PREAMBLE_SIZE, SEEK_CUR) || + fread(ftyp_atom, atom_size, 1, infile) != 1) { perror(argv[1]); goto error_out; } start_offset = ftello(infile); } else { + int ret; /* 64-bit special case */ if (atom_size == 1) { if (fread(atom_bytes, ATOM_PREAMBLE_SIZE, 1, infile) != 1) { break; } atom_size = BE_64(&atom_bytes[0]); - fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE * 2, SEEK_CUR); + ret = fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE * 2, SEEK_CUR); } else { - fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE, SEEK_CUR); + ret = fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE, SEEK_CUR); + } + if (ret) { + perror(argv[1]); + goto error_out; } } printf("%c%c%c%c %10"PRIu64" %"PRIu64"\n", @@ -192,7 +197,10 @@ int main(int argc, char *argv[]) /* moov atom was, in fact, the last atom in the chunk; load the whole * moov atom */ - fseeko(infile, -atom_size, SEEK_END); + if (fseeko(infile, -atom_size, SEEK_END)) { + perror(argv[1]); + goto error_out; + } last_offset = ftello(infile); moov_atom_size = atom_size; moov_atom = malloc(moov_atom_size); @@ -268,7 +276,11 @@ int main(int argc, char *argv[]) } if (start_offset > 0) { /* seek after ftyp atom */ - fseeko(infile, start_offset, SEEK_SET); + if (fseeko(infile, start_offset, SEEK_SET)) { + perror(argv[1]); + goto error_out; + } + last_offset -= start_offset; } |