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| author | Rich Felker <dalias@aerifal.cx> | 2013-02-03 17:09:47 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2013-02-03 17:09:47 -0500 |
| commit | 4862864fc1a6d162b297db09c216b136db83d7dd (patch) | |
| tree | e7005707af3b8b89eb827423c6d02c154f86c0b7 /src/process | |
| parent | fb6b159d9ec7cf1e037daa974eeeacf3c8b3b3f1 (diff) | |
| download | musl-4862864fc1a6d162b297db09c216b136db83d7dd.tar.gz musl-4862864fc1a6d162b297db09c216b136db83d7dd.tar.xz musl-4862864fc1a6d162b297db09c216b136db83d7dd.zip | |
fix unsigned comparison bug in posix_spawn
read should never return anything but 0 or sizeof ec here, but if it does, we want to treat any other return as "success". then the caller will get back the pid and is responsible for waiting on it when it immediately exits.
Diffstat (limited to 'src/process')
| -rw-r--r-- | src/process/posix_spawn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c index c55907d3..dd450129 100644 --- a/src/process/posix_spawn.c +++ b/src/process/posix_spawn.c @@ -152,7 +152,7 @@ int __posix_spawnx(pid_t *restrict res, const char *restrict path, close(args.p[1]); if (pid > 0) { - if (read(args.p[0], &ec, sizeof ec) < sizeof ec) ec = 0; + if (read(args.p[0], &ec, sizeof ec) != sizeof ec) ec = 0; else waitpid(pid, &(int){0}, 0); } else { ec = -pid; |