X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_sigmask.c;h=b274bd0d8ac19fcb54a3e32a81b2db6fccdc1d6b;hb=062446a85db9b58b4900df82e17cb8c07ec50453;hp=decc38f8d56514ab6d935edc93dc9ef7ebe2f1f5;hpb=40bd1726b6aa93a8311a77a1fec6da0fe0489fd0;p=musl

diff --git a/src/thread/pthread_sigmask.c b/src/thread/pthread_sigmask.c
index decc38f8..b274bd0d 100644
--- a/src/thread/pthread_sigmask.c
+++ b/src/thread/pthread_sigmask.c
@@ -3,11 +3,11 @@
 #include <pthread.h>
 #include "syscall.h"
 
-int pthread_sigmask(int how, const sigset_t *set, sigset_t *old)
+int pthread_sigmask(int how, const sigset_t *restrict set, sigset_t *restrict old)
 {
 	int ret;
-	if (how > 2U) return EINVAL;
-	ret = -__syscall(SYS_rt_sigprocmask, how, set, old, 8);
+	if ((unsigned)how - SIG_BLOCK > 2U) return EINVAL;
+	ret = -__syscall(SYS_rt_sigprocmask, how, set, old, _NSIG/8);
 	if (!ret && old) {
 		if (sizeof old->__bits[0] == 8) {
 			old->__bits[0] &= ~0x380000000ULL;