From 690dd44121e22b14085cae98eb965ac53ca2f2db Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 24 Nov 2016 10:48:39 +1000
Subject: [PATCH] util: if errno is nonzero, exit early from safe_atoi

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 13428f5d82a25c1f56fa247d4a201f805d80fde6)
---
 src/libinput-util.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libinput-util.h b/src/libinput-util.h
index 6c9afdc1..a42643d3 100644
--- a/src/libinput-util.h
+++ b/src/libinput-util.h
@@ -28,6 +28,7 @@
 #include "config.h"
 
 #include <assert.h>
+#include <errno.h>
 #include <limits.h>
 #include <math.h>
 #include <stdarg.h>
@@ -410,7 +411,10 @@ safe_atoi(const char *str, int *val)
 	char *endptr;
 	long v;
 
+	errno = 0;
 	v = strtol(str, &endptr, 10);
+	if (errno > 0)
+		return false;
 	if (str == endptr)
 		return false;
 	if (*str != '\0' && *endptr != '\0')