From 3910e93340990a8107d9d9d1e8d5e9102817315f Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Sun, 3 Apr 2011 19:18:43 -0400
Subject: [PATCH] make ualarm actually work (obsolete function removed from
 SUS)

---
 src/unistd/ualarm.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/unistd/ualarm.c b/src/unistd/ualarm.c
index 1eb08692..855504bc 100644
--- a/src/unistd/ualarm.c
+++ b/src/unistd/ualarm.c
@@ -1,8 +1,13 @@
+#define _GNU_SOURCE
 #include <unistd.h>
-#include "syscall.h"
+#include <sys/time.h>
 
-/* FIXME: ?? */
-unsigned ualarm(unsigned useconds, unsigned interval)
+unsigned ualarm(unsigned value, unsigned interval)
 {
-	return -1;
+	struct itimerval it = {
+		.it_interval.tv_usec = interval,
+		.it_value.tv_usec = value
+	};
+	setitimer(ITIMER_REAL, &it, &it);
+	return it.it_value.tv_sec*1000000 + it.it_value.tv_usec;
 }
-- 
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