Alexandre Julliard : ntdll: Avoid using LdrQueryProcessModuleInformation() in the Unix library.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: afb16545671e7420c7a8bbb4ef97333c33001564
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=afb16545671e7420c7a8bbb4ef97333c33001564

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Fri Jul 10 07:58:35 2020 +0200

ntdll: Avoid using LdrQueryProcessModuleInformation() in the Unix library.

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ntdll/unix/system.c | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/unix/system.c b/dlls/ntdll/unix/system.c
index 07a3ad2154..c3dca7ffe2 100644
--- a/dlls/ntdll/unix/system.c
+++ b/dlls/ntdll/unix/system.c
@@ -2292,10 +2292,41 @@ NTSTATUS WINAPI NtQuerySystemInformation( SYSTEM_INFORMATION_CLASS class,
     }
 
     case SystemModuleInformation:
-        /* FIXME: should be system-wide */
+    {
+        /* FIXME: return some fake info for now */
+        static const char *fake_modules[] =
+        {
+            "\\SystemRoot\\system32\\ntoskrnl.exe",
+            "\\SystemRoot\\system32\\hal.dll",
+            "\\SystemRoot\\system32\\drivers\\mountmgr.sys"
+        };
+
         if (!info) ret = STATUS_ACCESS_VIOLATION;
-        else ret = LdrQueryProcessModuleInformation( info, size, &len );
+        else
+        {
+            ULONG i;
+            SYSTEM_MODULE_INFORMATION *smi = info;
+
+            len = offsetof( SYSTEM_MODULE_INFORMATION, Modules[ARRAY_SIZE(fake_modules)] );
+            if (len <= size)
+            {
+                memset( smi, 0, len );
+                for (i = 0; i < ARRAY_SIZE(fake_modules); i++)
+                {
+                    SYSTEM_MODULE *sm = &smi->Modules[i];
+                    sm->ImageBaseAddress = (char *)0x10000000 + 0x200000 * i;
+                    sm->ImageSize = 0x200000;
+                    sm->LoadOrderIndex = i;
+                    sm->LoadCount = 1;
+                    strcpy( (char *)sm->Name, fake_modules[i] );
+                    sm->NameOffset = strrchr( fake_modules[i], '\\' ) - fake_modules[i] + 1;
+                }
+                smi->ModulesCount = i;
+            }
+            else ret = STATUS_INFO_LENGTH_MISMATCH;
+        }
         break;
+    }
 
     case SystemHandleInformation:
     {