From 572dcc2b8397b149fab16a2e885598b59691ad47 Mon Sep 17 00:00:00 2001
From: Robert Ransom <rransom.8774@gmail.com>
Date: Sun, 20 May 2012 12:51:18 +0000
Subject: [PATCH] util/estrtol: Also check for out-of-range values using errno

---
 util/estrtol.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/util/estrtol.c b/util/estrtol.c
index 26c1fde..431b40c 100644
--- a/util/estrtol.c
+++ b/util/estrtol.c
@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include "../util.h"
@@ -9,8 +10,9 @@ estrtol(const char *s, int base)
 	char *end;
 	long n;
 	
+	errno = 0;
 	n = strtol(s, &end, base);
-	if(*end != '\0') {
+	if(*end != '\0' || errno != 0) {
 		if(base == 0)
 			eprintf("%s: not an integer\n", s);
 		else