mingw-crt/add_memmove_s.patch
2014-07-31 08:46:38 +02:00

85 lines
2.2 KiB
Diff

From d51b0c6477f1ce5ca2cc0377be239339327fa252 Mon Sep 17 00:00:00 2001
From: Ruben De Smet <ruben.de.smet@telenet.be>
Date: Mon, 28 Jul 2014 21:15:57 +0200
Subject: [PATCH] Add secapi wrapper for memmove_s
---
mingw-w64-crt/Makefile.am | 1 +
mingw-w64-crt/Makefile.in | 73 ++++++++++++++++++++++++++++++++++-----
mingw-w64-crt/lib32/msvcrt.def.in | 2 +-
mingw-w64-crt/lib64/msvcrt.def.in | 2 +-
mingw-w64-crt/secapi/memmove_s.c | 60 ++++++++++++++++++++++++++++++++
5 files changed, 128 insertions(+), 10 deletions(-)
create mode 100644 mingw-w64-crt/secapi/memmove_s.c
diff --git a/mingw-w64-crt/secapi/memmove_s.c b/mingw-w64-crt/secapi/memmove_s.c
new file mode 100644
index 0000000..a7b8501
--- /dev/null
+++ b/mingw-w64-crt/secapi/memmove_s.c
@@ -0,0 +1,60 @@
+#include <windows.h>
+#include <malloc.h>
+#include <errno.h>
+#include <msvcrt.h>
+
+errno_t __cdecl memmove_s (void *, size_t, const void *, size_t);
+static errno_t __cdecl _int_memmove_s (void *, size_t, const void *, size_t);
+static errno_t __cdecl _stub (void *, size_t, const void *, size_t);
+
+errno_t __cdecl (*__MINGW_IMP_SYMBOL(memmove_s))(void *, size_t, const void *, size_t) =
+ _stub;
+
+static errno_t __cdecl
+_stub (void *d, size_t dn, const void *s, size_t n)
+{
+ errno_t __cdecl (*f)(void *, size_t, const void *, size_t) = __MINGW_IMP_SYMBOL(memmove_s);
+
+ if (f == _stub)
+ {
+ f = (errno_t __cdecl (*)(void *, size_t, const void *, size_t))
+ GetProcAddress (__mingw_get_msvcrt_handle (), "memmove_s");
+ if (!f)
+ f = _int_memmove_s;
+ __MINGW_IMP_SYMBOL(memmove_s) = f;
+ }
+ return (*f)(d, dn, s, n);
+}
+
+errno_t __cdecl
+memmove_s (void *d, size_t dn, const void *s, size_t n)
+{
+ return _stub (d, dn, s, n);
+}
+
+static errno_t __cdecl
+_int_memmove_s (void *d, size_t dn, const void *s, size_t n)
+{
+ if (!n)
+ return 0;
+
+ if (!d || !s)
+ {
+ if (d)
+ memset (d, 0, dn);
+ errno = EINVAL;
+ return EINVAL;
+ }
+
+ if (dn < n)
+ {
+ memset (d, 0, dn);
+
+ errno = ERANGE;
+ return ERANGE;
+ }
+
+ memmove (d, s, n);
+
+ return 0;
+}
--
1.8.3.1