Alexandre Julliard : ntdll: Add memcpy_s and memmove_s.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: cbf5ad74fcf40a56788933d962cb157a0b3bacb8
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=cbf5ad74fcf40a56788933d96...

Author: Alexandre Julliard 
Date:   Wed Jun 29 11:52:23 2022 +0200

ntdll: Add memcpy_s and memmove_s.

Implementation copied from msvcrt.

Signed-off-by: Alexandre Julliard

---

dlls/ntdll/ntdll.spec |  2 ++
 dlls/ntdll/string.c   | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index 0cda13586f4..2a119c9a508 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -1581,7 +1581,9 @@
 @ cdecl memchr(ptr long long)
 @ cdecl memcmp(ptr ptr long)
 @ cdecl memcpy(ptr ptr long)
+@ cdecl memcpy_s(ptr long ptr long)
 @ cdecl memmove(ptr ptr long)
+@ cdecl memmove_s(ptr long ptr long)
 @ cdecl memset(ptr long long)
 @ cdecl pow(double double)
 @ cdecl qsort(ptr long long ptr)
diff --git a/dlls/ntdll/string.c b/dlls/ntdll/string.c
index 1bea000b2bd..c0db6f832ef 100644
--- a/dlls/ntdll/string.c
+++ b/dlls/ntdll/string.c
@@ -142,6 +142,42 @@ void * __cdecl memmove( void *dst, const void *src, size_t n )
 }

+/*********************************************************************
+ *		memcpy_s (MSVCRT.@)
+ */
+errno_t __cdecl memcpy_s( void *dst, size_t len, const void *src, size_t count )
+{
+    if (!count) return 0;
+    if (!dst) return EINVAL;
+    if (!src)
+    {
+        memset( dst, 0, len );
+        return EINVAL;
+    }
+    if (count > len)
+    {
+        memset( dst, 0, len );
+        return ERANGE;
+    }
+    memmove( dst, src, count );
+    return 0;
+}
+
+
+/*********************************************************************
+ *		memmove_s (MSVCRT.@)
+ */
+errno_t __cdecl memmove_s( void *dst, size_t len, const void *src, size_t count )
+{
+    if (!count) return 0;
+    if (!dst) return EINVAL;
+    if (!src) return EINVAL;
+    if (count > len) return ERANGE;
+    memmove( dst, src, count );
+    return 0;
+}
+
+
 static inline void memset_aligned_32( unsigned char *d, uint64_t v, size_t n )
 {
     unsigned char *end = d + n;