Module Name: src
Committed By: christos
Date: Fri Sep 24 14:34:44 UTC 2010
Modified Files:
src/lib/libc/stdlib: unsetenv.c
Log Message:
protect the __allocenv call with the mutex; from Enami
To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/lib/libc/stdlib/unsetenv.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libc/stdlib/unsetenv.c
diff -u src/lib/libc/stdlib/unsetenv.c:1.4 src/lib/libc/stdlib/unsetenv.c:1.5
--- src/lib/libc/stdlib/unsetenv.c:1.4 Thu Sep 23 13:30:49 2010
+++ src/lib/libc/stdlib/unsetenv.c Fri Sep 24 10:34:44 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: unsetenv.c,v 1.4 2010/09/23 17:30:49 christos Exp $ */
+/* $NetBSD: unsetenv.c,v 1.5 2010/09/24 14:34:44 christos Exp $ */
/*
* Copyright (c) 1987, 1993
@@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "from: @(#)setenv.c 8.1 (Berkeley) 6/4/93";
#else
-__RCSID("$NetBSD: unsetenv.c,v 1.4 2010/09/23 17:30:49 christos Exp $");
+__RCSID("$NetBSD: unsetenv.c,v 1.5 2010/09/24 14:34:44 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@@ -66,10 +66,11 @@
return -1;
}
+ rwlock_wrlock(&__environ_lock);
+
if (__allocenv(-1) == -1)
return -1;
- rwlock_wrlock(&__environ_lock);
while (__findenv(name, &offset)) { /* if set multiple times */
if (bit_test(__environ_malloced, offset))
free(environ[offset]);
