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fix possible (questionable) strict aliasing violations and ptr arith
[musl]
/
src
/
thread
/
sem_open.c
diff --git
a/src/thread/sem_open.c
b/src/thread/sem_open.c
index
6fff71a
..
809925d
100644
(file)
--- 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);
}
close(tfd);
unlink(tmp);
}
- if (fstat(fd, &st) < 0) {
+ if (f
d >= 0 && f
stat(fd, &st) < 0) {
close(fd);
fd = -1;
}
close(fd);
fd = -1;
}
@@
-118,6
+118,10
@@
sem_t *sem_open(const char *name, int flags, ...)
break;
}
}
break;
}
}
+ if (!(flags & O_CREAT)) {
+ pthread_spin_unlock(&lock);
+ return SEM_FAILED;
+ }
if (!linkat(AT_FDCWD, tmp, dir, name, 0)) {
fd = tfd;
close(dir);
if (!linkat(AT_FDCWD, tmp, dir, name, 0)) {
fd = tfd;
close(dir);