From 9cc198f65ba914867c8146ab23e0c6adac22a1fb Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 23 Sep 2007 18:27:55 +0000
Subject: [BZ #4963]

	* wcsmbs/wcsnlen.c: Don't reference before checking the length.
	* string/stratcliff.c: Make usable to test wide char functions.
	* wcsmbs/wcsatcliff.c: New file.
	* wcsmbs/Makefiel (tests): Add wcsatcliff.
---
 wcsmbs/Makefile     |  3 ++-
 wcsmbs/wcsatcliff.c | 20 ++++++++++++++++++++
 wcsmbs/wcsnlen.c    | 13 ++++++++-----
 3 files changed, 30 insertions(+), 6 deletions(-)
 create mode 100644 wcsmbs/wcsatcliff.c

(limited to 'wcsmbs')

diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile
index 4afbc4cac4..907bb25580 100644
--- a/wcsmbs/Makefile
+++ b/wcsmbs/Makefile
@@ -43,7 +43,8 @@ routines := wcscat wcschr wcscmp wcscpy wcscspn wcsdup wcslen wcsncat \
 	    isoc99_swscanf isoc99_vswscanf
 
 tests := tst-wcstof wcsmbs-tst1 tst-wcsnlen tst-btowc tst-mbrtowc \
-	 tst-wcrtomb tst-wcpncpy tst-mbsrtowcs tst-wchar-h tst-mbrtowc2
+	 tst-wcrtomb tst-wcpncpy tst-mbsrtowcs tst-wchar-h tst-mbrtowc2 \
+	 wcsatcliff
 
 include ../Rules
 
diff --git a/wcsmbs/wcsatcliff.c b/wcsmbs/wcsatcliff.c
new file mode 100644
index 0000000000..22db60763f
--- /dev/null
+++ b/wcsmbs/wcsatcliff.c
@@ -0,0 +1,20 @@
+#include <wchar.h>
+
+#define WCSTEST 1
+#define L(c) L##c
+#define CHAR wchar_t
+#define MEMSET wmemset
+#define STRLEN wcslen
+#define STRNLEN wcsnlen
+#define STRCHR wcschr
+#define STRRCHR wcsrchr
+#define STRCPY wcscpy
+#define STRNCPY wcsncpy
+#define MEMCMP wmemcmp
+#define STPCPY wcpcpy
+#define STPNCPY wcpncpy
+#define MEMCPY wmemcpy
+#define MEMPCPY wmempcpy
+
+
+#include "../string/stratcliff.c"
diff --git a/wcsmbs/wcsnlen.c b/wcsmbs/wcsnlen.c
index 3cfbccad91..94abf1e574 100644
--- a/wcsmbs/wcsnlen.c
+++ b/wcsmbs/wcsnlen.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -28,13 +28,16 @@ __wcsnlen (s, maxlen)
 {
   size_t len = 0;
 
-  while (s[len] != L'\0' && maxlen > 0)
+  while (maxlen > 0 && s[len] != L'\0')
     {
-      if (s[++len] == L'\0' || --maxlen == 0)
+      ++len;
+      if (--maxlen == 0 || s[len] == L'\0')
 	return len;
-      if (s[++len] == L'\0' || --maxlen == 0)
+      ++len;
+      if (--maxlen == 0 || s[len] == L'\0')
 	return len;
-      if (s[++len] == L'\0' || --maxlen == 0)
+      ++len;
+      if (--maxlen == 0 || s[len] == L'\0')
 	return len;
       ++len;
       --maxlen;
-- 
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