From 85358f11fd312fb530e39930e8ec278fa3b34449 Mon Sep 17 00:00:00 2001
From: Vitaly Lipatov <lav@etersoft.ru>
Date: Fri, 7 Apr 2017 11:16:45 +0300
Subject: [PATCH 2/2] add fast hack for RegQueryValueEx HKEY_PERFORMANCE_DATA
 (eterbug #11712)
To: wine-patches <wine-patches@winehq.org>

---
 dlls/advapi32/registry.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/dlls/advapi32/registry.c b/dlls/advapi32/registry.c
index e32f48a..000ae96 100644
--- a/dlls/advapi32/registry.c
+++ b/dlls/advapi32/registry.c
@@ -37,6 +37,7 @@
 #include "winerror.h"
 #include "winternl.h"
 #include "winuser.h"
+#include "winperf.h"
 #include "sddl.h"
 #include "advapi32_misc.h"
 
@@ -1502,6 +1503,41 @@ LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDW
           (count && data) ? *count : 0 );
 
     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
+
+    /* Etersoft hack (eterbug #11712) */
+    if (hkey == HKEY_PERFORMANCE_DATA) {
+        status = STATUS_SUCCESS;
+        if (*count < sizeof(PERF_DATA_BLOCK)) {
+            FIXME("HKEY_PERF ERROR_MORE_DATA: %d but needed %d\n", *count, sizeof(PERF_DATA_BLOCK));
+            *count = sizeof(PERF_DATA_BLOCK);
+            return ERROR_MORE_DATA;
+        }
+        {
+            PERF_DATA_BLOCK *pdb = (PERF_DATA_BLOCK *)data;
+            LARGE_INTEGER li;
+            li.QuadPart = 0L;
+            pdb->Signature[0] = 'P';
+            pdb->Signature[1] = 'E';
+            pdb->Signature[2] = 'R';
+            pdb->Signature[3] = 'F';
+            pdb->LittleEndian = 1; /* little endian */
+            pdb->Version = 1;
+            pdb->Revision = 1;
+            pdb->TotalByteLength = sizeof(*pdb);
+            pdb->HeaderLength = sizeof(*pdb);
+            pdb->NumObjectTypes = 0;
+            pdb->PerfTime = li;
+            pdb->PerfFreq = li; // can be 0
+            pdb->PerfTime100nSec = li;
+            pdb->SystemNameLength = 0;
+            pdb->SystemNameOffset = 0;
+            *count = sizeof(PERF_DATA_BLOCK);
+            FIXME("PERF_DATA_BLOCK %d\n", *count);
+        }
+        return RtlNtStatusToDosError(status);
+    }
+    /* END of Etersoft hack */
+
     if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
 
     RtlInitUnicodeString( &name_str, name );
@@ -1592,6 +1628,41 @@ LSTATUS WINAPI DECLSPEC_HOTPATCH RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWO
           hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
 
     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
+
+    /* Etersoft hack (eterbug #11712) */
+    if (hkey == HKEY_PERFORMANCE_DATA) {
+        status = STATUS_SUCCESS;
+        if (*count < sizeof(PERF_DATA_BLOCK)) {
+            FIXME("HKEY_PERF ERROR_MORE_DATA: %d but needed %d\n", *count, sizeof(PERF_DATA_BLOCK));
+            *count = sizeof(PERF_DATA_BLOCK);
+            return ERROR_MORE_DATA;
+        }
+        {
+            PERF_DATA_BLOCK *pdb = (PERF_DATA_BLOCK *)data;
+            LARGE_INTEGER li;
+            li.QuadPart = 0L;
+            pdb->Signature[0] = 'P';
+            pdb->Signature[1] = 'E';
+            pdb->Signature[2] = 'R';
+            pdb->Signature[3] = 'F';
+            pdb->LittleEndian = 1; /* little endian */
+            pdb->Version = 1;
+            pdb->Revision = 1;
+            pdb->TotalByteLength = sizeof(*pdb);
+            pdb->HeaderLength = sizeof(*pdb);
+            pdb->NumObjectTypes = 0;
+            pdb->PerfTime = li;
+            pdb->PerfFreq = li; // can be 0
+            pdb->PerfTime100nSec = li;
+            pdb->SystemNameLength = 0;
+            pdb->SystemNameOffset = 0;
+            *count = sizeof(PERF_DATA_BLOCK);
+            FIXME("PERF_DATA_BLOCK %d\n", *count);
+        }
+        return RtlNtStatusToDosError(status);
+    }
+    /* END of Etersoft hack */
+
     if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
 
     if (count) datalen = *count;
-- 
2.10.2