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| author | Rich Felker <dalias@aerifal.cx> | 2011-03-10 22:05:16 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-03-10 22:05:16 -0500 |
| commit | 682a0f271f8b9a5842679a0f7070139a1f456c0d (patch) | |
| tree | a185a4c831fe0351e4c56a14ae7476d790bab136 | |
| parent | cfe581b6bc795e3f00ac30791314ec0f9be4b4ad (diff) | |
| download | musl-682a0f271f8b9a5842679a0f7070139a1f456c0d.tar.gz musl-682a0f271f8b9a5842679a0f7070139a1f456c0d.tar.xz musl-682a0f271f8b9a5842679a0f7070139a1f456c0d.zip | |
fix failure behavior of sem_open when sem does not exist
| -rw-r--r-- | src/thread/sem_open.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/thread/sem_open.c b/src/thread/sem_open.c index 6fff71a8..809925d2 100644 --- a/src/thread/sem_open.c +++ b/src/thread/sem_open.c @@ -100,7 +100,7 @@ sem_t *sem_open(const char *name, int flags, ...) close(tfd); unlink(tmp); } - if (fstat(fd, &st) < 0) { + if (fd >= 0 && fstat(fd, &st) < 0) { close(fd); fd = -1; } @@ -118,6 +118,10 @@ sem_t *sem_open(const char *name, int flags, ...) break; } } + if (!(flags & O_CREAT)) { + pthread_spin_unlock(&lock); + return SEM_FAILED; + } if (!linkat(AT_FDCWD, tmp, dir, name, 0)) { fd = tfd; close(dir); |