From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 24 May 2012 16:21:34 +0000 (-0400)
Subject: avoid deprecated (by linux) alarm syscall; use setitimer instead
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=e241896cd5ebe5d6b8e725fe4ac7a8d9c0980319;p=musl

avoid deprecated (by linux) alarm syscall; use setitimer instead
---

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;
 }