msvcrt: Implement and test rand_s.

dlls/msvcrt/Makefile.in

@@ -6,7 +6,7 @@ VPATH     = @srcdir@
 MODULE    = msvcrt.dll
 IMPORTLIB = msvcrt
 IMPORTS   = kernel32 ntdll
-DELAYIMPORTS = user32
+DELAYIMPORTS = advapi32 user32
 
 C_SRCS = \
 	console.c \

dlls/msvcrt/misc.c

@@ -25,6 +25,7 @@
 
 #include "msvcrt.h"
 #include "wine/debug.h"
+#include "ntsecapi.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
 
@@ -60,6 +61,19 @@ int CDECL MSVCRT_rand(void)
     return (data->random_seed >> 16) & MSVCRT_RAND_MAX;
 }
 
+/*********************************************************************
+ *		rand_s (MSVCRT.@)
+ */
+int CDECL MSVCRT_rand_s(unsigned int *pval)
+{
+    if (!pval || !RtlGenRandom(pval, sizeof(*pval)))
+    {
+        *MSVCRT__errno() = MSVCRT_EINVAL;
+        return MSVCRT_EINVAL;
+    }
+    return 0;
+}
+
 /*********************************************************************
  *		_sleep (MSVCRT.@)
  */

dlls/msvcrt/msvcrt.spec

@@ -736,6 +736,7 @@
 @ cdecl qsort(ptr long long ptr) ntdll.qsort
 @ cdecl raise(long) MSVCRT_raise
 @ cdecl rand() MSVCRT_rand
+@ cdecl rand_s(ptr) MSVCRT_rand_s
 @ cdecl realloc(ptr long) MSVCRT_realloc
 @ cdecl remove(str) MSVCRT_remove
 @ cdecl rename(str str) MSVCRT_rename

dlls/msvcrt/tests/Makefile.in

@@ -16,6 +16,7 @@ CTESTS = \
 	file.c \
 	headers.c \
 	heap.c \
+	misc.c \
 	printf.c \
 	scanf.c \
 	signal.c \

dlls/msvcrt/tests/misc.c

@@ -0,0 +1,58 @@
+/*
+ * Unit tests for miscellaneous msvcrt functions
+ *
+ * Copyright 2010 Andrew Nguyen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "wine/test.h"
+#include <errno.h>
+
+static int (__cdecl *prand_s)(unsigned int *);
+
+static void init(void)
+{
+    HMODULE hmod = GetModuleHandleA("msvcrt.dll");
+
+    prand_s = (void *)GetProcAddress(hmod, "rand_s");
+}
+
+static void test_rand_s(void)
+{
+    int ret;
+    unsigned int rand;
+
+    if (!prand_s)
+    {
+        win_skip("rand_s is not available\n");
+        return;
+    }
+
+    errno = EBADF;
+    ret = prand_s(NULL);
+    ok(ret == EINVAL, "Expected rand_s to return EINVAL, got %d\n", ret);
+    ok(errno == EINVAL, "Expected errno to return EINVAL, got %d\n", errno);
+
+    ret = prand_s(&rand);
+    ok(ret == 0, "Expected rand_s to return 0, got %d\n", ret);
+}
+
+START_TEST(misc)
+{
+    init();
+
+    test_rand_s();
+}