msvcrt: Copy strncat implementation from ntdll.

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

msvcrt: Copy strncat implementation from ntdll.
3b0fb2b1 · Piotr Caban · Alexandre Julliard · 770d3b86 · 3b0fb2b1
Commit 3b0fb2b1 authored Jul 22, 2020 by Piotr Caban Committed by Alexandre Julliard Jul 22, 2020
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string.c dlls/msvcrt/string.c +5 -1

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--- 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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