wine-staging/patches/kernel32-SetProcessDEPPolicy/0002-kernel32-Implement-GetSystemDEPPolicy.patch

From 9e92b5b796193d5de1c342576df7ecc07bc09c7d Mon Sep 17 00:00:00 2001
From: "Olivier F. R. Dierick" <o.dierick@piezo-forte.be>
Date: Tue, 19 Apr 2016 07:33:32 +0200
Subject: [PATCH 2/3] kernel32: Implement GetSystemDEPPolicy().

---
 dlls/kernel32/process.c | 70 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 68 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index 7a89207388..6bf31516ca 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -56,6 +56,7 @@
 #define WIN32_NO_STATUS
 #include "winternl.h"
 #include "kernel_private.h"
+#include "winreg.h"
 #include "psapi.h"
 #include "wine/exception.h"
 #include "wine/library.h"
@@ -4369,8 +4370,73 @@ DWORD WINAPI WTSGetActiveConsoleSessionId(void)
  */
 DEP_SYSTEM_POLICY_TYPE WINAPI GetSystemDEPPolicy(void)
 {
-    FIXME("stub\n");
-    return OptIn;
+    char buffer[MAX_PATH+10];
+    DWORD size = sizeof(buffer);
+    HKEY hkey = 0;
+    HKEY appkey = 0;
+    DWORD len, tmpvalue;
+    WINADVAPI LSTATUS   (WINAPI *pRegOpenKeyA)(HKEY,LPCSTR,PHKEY);
+    WINADVAPI LSTATUS   (WINAPI *pRegQueryValueExA)(HKEY,LPCSTR,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
+    WINADVAPI LSTATUS   (WINAPI *pRegCloseKey)(HKEY);
+
+    TRACE("()\n");
+
+    pRegOpenKeyA = (void*)GetProcAddress(GetModuleHandleA("advapi32"), "RegOpenKeyA");
+    pRegQueryValueExA = (void*)GetProcAddress(GetModuleHandleA("advapi32"), "RegQueryValueExA");
+    pRegCloseKey = (void*)GetProcAddress(GetModuleHandleA("advapi32"), "RegCloseKey");
+    if ( !pRegOpenKeyA || !pRegQueryValueExA || !pRegCloseKey ) return OptIn;
+
+    /* @@ Wine registry key: HKCU\Software\Wine\Boot.ini */
+    if ( pRegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Boot.ini", &hkey ) ) hkey = 0;
+
+    len = GetModuleFileNameA( 0, buffer, MAX_PATH );
+    if (len && len < MAX_PATH)
+    {
+        HKEY tmpkey;
+        /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Boot.ini */
+        if (!pRegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
+        {
+            char *p, *appname = buffer;
+            if ((p = strrchr( appname, '/' ))) appname = p + 1;
+            if ((p = strrchr( appname, '\\' ))) appname = p + 1;
+            strcat( appname, "\\Boot.ini" );
+            TRACE("appname = [%s]\n", appname);
+            if (pRegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
+            pRegCloseKey( tmpkey );
+        }
+    }
+
+    if (hkey || appkey)
+    {
+        if ((appkey && !pRegQueryValueExA(appkey, "NoExecute", 0, NULL, (BYTE *)buffer, &size)) ||
+            (hkey && !pRegQueryValueExA(hkey, "NoExecute", 0, NULL, (BYTE *)buffer, &size)))
+        {
+            if (!strcmp(buffer,"OptIn"))
+            {
+                TRACE("System DEP policy set to OptIn\n");
+                system_DEP_policy = OptIn;
+            }
+            else if (!strcmp(buffer,"OptOut"))
+            {
+                TRACE("System DEP policy set to OptOut\n");
+                system_DEP_policy = OptIn;
+            }
+            else if (!strcmp(buffer,"AlwaysOn"))
+            {
+                TRACE("System DEP policy set to AlwaysOn\n");
+                system_DEP_policy = AlwaysOn;
+            }
+            else if (!strcmp(buffer,"AlwaysOff"))
+            {
+                TRACE("System DEP policy set to AlwaysOff\n");
+                system_DEP_policy = AlwaysOff;
+            }
+        }
+    }
+
+    if (appkey) pRegCloseKey( appkey );
+    if (hkey) pRegCloseKey( hkey );
+    return system_DEP_policy;
 }
 
 /**********************************************************************
-- 
2.17.1