X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Funistd%2Falarm.c;h=2e3263ac5986019f57576f6b0777f483b449eba7;hb=f78cdbe8993d072bf60a65754544199016a1fe29;hp=244af1c0470f0e3e2ff2d2bd20d5600448eb6320;hpb=aa398f56fa398f2202b04e82c67f822f3233786f;p=musl

diff --git a/src/unistd/alarm.c b/src/unistd/alarm.c
index 244af1c0..2e3263ac 100644
--- a/src/unistd/alarm.c
+++ b/src/unistd/alarm.c
@@ -1,7 +1,10 @@
 #include <unistd.h>
+#include <sys/time.h>
 #include "syscall.h"
 
 unsigned alarm(unsigned seconds)
 {
-	return syscall(SYS_alarm, seconds);
+	struct itimerval it = { .it_value.tv_sec = seconds };
+	__syscall(SYS_setitimer, ITIMER_REAL, &it, &it);
+	return it.it_value.tv_sec + !!it.it_value.tv_usec;
 }