[src/trunk]: src/lib/libc/stdlib Retain old variables when failed to allocate...

[enami <enami%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b3e86b0a60c6
branches:  trunk
changeset: 749545:b3e86b0a60c6
user:      enami <enami%NetBSD.org@localhost>
date:      Wed Dec 02 09:34:51 2009 +0000

description:
Retain old variables when failed to allocate memory.

diffstat:

 lib/libc/stdlib/setenv.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (30 lines):

diff -r 8e8409682a0e -r b3e86b0a60c6 lib/libc/stdlib/setenv.c
--- a/lib/libc/stdlib/setenv.c  Wed Dec 02 09:03:13 2009 +0000
+++ b/lib/libc/stdlib/setenv.c  Wed Dec 02 09:34:51 2009 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: setenv.c,v 1.31 2008/11/01 00:54:47 christos Exp $     */
+/*     $NetBSD: setenv.c,v 1.32 2009/12/02 09:34:51 enami Exp $        */
 
 /*
  * Copyright (c) 1987, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)setenv.c   8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: setenv.c,v 1.31 2008/11/01 00:54:47 christos Exp $");
+__RCSID("$NetBSD: setenv.c,v 1.32 2009/12/02 09:34:51 enami Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -103,9 +103,9 @@
                continue;
        size = cc - name;
        /* name + `=' + value */
-       if ((environ[offset] = malloc(size + l_value + 2)) == NULL)
+       if ((c = malloc(size + l_value + 2)) == NULL)
                goto bad;
-       c = environ[offset];
+       environ[offset] = c;
        (void)memcpy(c, name, size);
        c += size;
        *c++ = '=';