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cws2fws: check lseek() return

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Fixes: CID733721
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-10-26 17:30:15 +02:00
parent 59eae88429
commit 86aba86b1b
1 changed files with 2 additions and 2 deletions
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4
tools/cws2fws.c
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@ -128,8 +128,8 @@ int main(int argc, char *argv[])
buf_in[2] = ((zstream.total_out + 8) >> 16) & 0xff;
buf_in[3] = ((zstream.total_out + 8) >> 24) & 0xff;
lseek(fd_out, 4, SEEK_SET);
if (write(fd_out, &buf_in, 4) < 4) {
if ( lseek(fd_out, 4, SEEK_SET) < 0
|| write(fd_out, &buf_in, 4) < 4) {
perror("Error writing output file");
return 1;
}