Fix incorrect PEB offsets

Author: dmex

phnt/include/ntpebteb.h

@@ -124,7 +124,7 @@ typedef struct _PEB
     ULONG NumberOfProcessors;
     ULONG NtGlobalFlag;
 
-    LARGE_INTEGER CriticalSectionTimeout;
+    ULARGE_INTEGER CriticalSectionTimeout;
     SIZE_T HeapSegmentReserve;
     SIZE_T HeapSegmentCommit;
     SIZE_T HeapDeCommitTotalFreeThreshold;
@@ -200,6 +200,14 @@ typedef struct _PEB
     ULONG CloudFileFlags;
 } PEB, *PPEB;
 
+#ifdef _WIN64
+C_ASSERT(FIELD_OFFSET(PEB, SessionId) == 0x2C0);
+C_ASSERT(sizeof(PEB) == 0x7B0);
+#else
+C_ASSERT(FIELD_OFFSET(PEB, SessionId) == 0x1D4);
+C_ASSERT(sizeof(PEB) == 0x468);
+#endif
+
 #define GDI_BATCH_BUFFER_SIZE 310
 
 typedef struct _GDI_TEB_BATCH

phnt/include/ntpsapi.h

@@ -44,7 +44,7 @@
 #define GDI_HANDLE_BUFFER_SIZE32 34
 #define GDI_HANDLE_BUFFER_SIZE64 60
 
-#ifndef WIN64
+#ifndef _WIN64
 #define GDI_HANDLE_BUFFER_SIZE GDI_HANDLE_BUFFER_SIZE32
 #else
 #define GDI_HANDLE_BUFFER_SIZE GDI_HANDLE_BUFFER_SIZE64