optimize posix_spawn to avoid spurious sigaction syscalls

[musl] / src / signal / sigismember.c

diff --git a/src/signal/sigismember.c b/src/signal/sigismember.c
index e887b95..1a22108 100644 (file)
--- a/src/signal/sigismember.c
+++ b/src/signal/sigismember.c
@@ -4,9 +4,6 @@
 int sigismember(const sigset_t *set, int sig)
 {
        unsigned s = sig-1;
-       if (s >= 8*sizeof(sigset_t) || sig-32U<3) {
-               errno = EINVAL;
-               return -1;
-       }
+       if (s >= 8*sizeof(sigset_t)) return 0;
        return !!(set->__bits[s/8/sizeof *set->__bits] & 1UL<<(s&8*sizeof *set->__bits-1));
 }