From 24241ad7410890baa4999bca4095699607923178 Mon Sep 17 00:00:00 2001
From: millert <>
Date: Mon, 2 Feb 1998 22:44:53 +0000
Subject: [PATCH] Don't override environ if realloc() fails.  Pointed out by
 Dave Bodenstab <imdave@mcs.net>

---
 src/lib/libc/stdlib/setenv.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/lib/libc/stdlib/setenv.c b/src/lib/libc/stdlib/setenv.c
index 8838eb87..b6f261e6 100644
--- a/src/lib/libc/stdlib/setenv.c
+++ b/src/lib/libc/stdlib/setenv.c
@@ -32,7 +32,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: setenv.c,v 1.2 1996/08/19 08:33:48 tholo Exp $";
+static char *rcsid = "$OpenBSD: setenv.c,v 1.3 1998/02/02 22:44:53 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <stdlib.h>
@@ -71,10 +71,11 @@ setenv(name, value, rewrite)
 
 		for (P = environ, cnt = 0; *P; ++P, ++cnt);
 		if (alloced) {			/* just increase size */
-			environ = (char **)realloc((char *)environ,
+			P = (char **)realloc((void *)environ,
 			    (size_t)(sizeof(char *) * (cnt + 2)));
-			if (!environ)
+			if (!P)
 				return (-1);
+			environ = P;
 		}
 		else {				/* get new space */
 			alloced = 1;		/* copy old entries into it */