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-rw-r--r--src/signal/sigaction.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 79989500..ac9a3ac2 100644
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -53,9 +53,9 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact
 		ksa.handler = sa->sa_handler;
 		ksa.flags = sa->sa_flags | SA_RESTORER;
 		ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
-		memcpy(&ksa.mask, &sa->sa_mask, sizeof ksa.mask);
+		memcpy(&ksa.mask, &sa->sa_mask, _NSIG/8);
 	}
-	int r = __syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, sizeof ksa.mask);
+	int r = __syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, _NSIG/8);
 	if (sig == SIGABRT && sa && sa->sa_handler != SIG_DFL) {
 		UNLOCK(__abort_lock);
 		__restore_sigs(&set);
@@ -63,7 +63,7 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact
 	if (old && !r) {
 		old->sa_handler = ksa_old.handler;
 		old->sa_flags = ksa_old.flags;
-		memcpy(&old->sa_mask, &ksa_old.mask, sizeof ksa_old.mask);
+		memcpy(&old->sa_mask, &ksa_old.mask, _NSIG/8);
 	}
 	return __syscall_ret(r);
 }