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authordjm <djm@openbsd.org>2008-08-23 07:51:35 +0000
committerdjm <djm@openbsd.org>2008-08-23 07:51:35 +0000
commitc59d7441e1d55e2065d63f280643aa4ca4f34323 (patch)
tree3ae2e93234bb35cc4e7f83cf4fd5f65927c7cc47 /lib/libc
parentunbreak MALLOC_OPTIONS=G that I broke in my last commit; (diff)
downloadwireguard-openbsd-c59d7441e1d55e2065d63f280643aa4ca4f34323.tar.xz
wireguard-openbsd-c59d7441e1d55e2065d63f280643aa4ca4f34323.zip
make mbstowcs(NULL, string, 0) correctly return the length of the
wchar_t string needed to represent "string", which in our case is just strlen(string); feedback & "looks right" deraadt@
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/locale/multibyte_sb.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/libc/locale/multibyte_sb.c b/lib/libc/locale/multibyte_sb.c
index 6f11625315d..4067b154b02 100644
--- a/lib/libc/locale/multibyte_sb.c
+++ b/lib/libc/locale/multibyte_sb.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: multibyte_sb.c,v 1.6 2005/12/10 02:01:51 deraadt Exp $ */
+/* $OpenBSD: multibyte_sb.c,v 1.7 2008/08/23 07:51:35 djm Exp $ */
/* $NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $ */
/*
@@ -132,7 +132,8 @@ mbstowcs(wchar_t *pwcs, const char *s, size_t n)
{
/* pwcs may be NULL */
- /* s may be NULL */
+ if (pwcs == NULL)
+ return strlen(s);
return mbsrtowcs(pwcs, &s, n, NULL);
}