Piotr Caban : msvcrt: Copy strncat implementation from ntdll.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3b0fb2b175f96ba8e2c20e80be27ee348fc7547c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=3b0fb2b175f96ba8e2c20e80be27ee348fc7547c

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Wed Jul 22 11:10:42 2020 +0200

msvcrt: Copy strncat implementation from ntdll.

Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/msvcrt/string.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dlls/msvcrt/string.c b/dlls/msvcrt/string.c
index f646cee9df..9e747a1a0c 100644
--- a/dlls/msvcrt/string.c
+++ b/dlls/msvcrt/string.c
@@ -1171,7 +1171,11 @@ int CDECL MSVCRT_strncat_s( char* dst, MSVCRT_size_t elem, const char* src, MSVC
  */
 char* __cdecl MSVCRT_strncat(char *dst, const char *src, MSVCRT_size_t len)
 {
-    return strncat(dst, src, len);
+    char *d = dst;
+    while (*d) d++;
+    for ( ; len && *src; d++, src++, len--) *d = *src;
+    *d = 0;
+    return dst;
 }
 
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