From bff5e90eda5c559e9191d9ac7f62e2f95409a868 Mon Sep 17 00:00:00 2001
From: Jason Hood <jadoxa@yahoo.com.au>
Date: Thu, 26 Oct 2017 12:58:17 +1000
Subject: [PATCH] Add some comments

---
 injdll.c   | 3 ++-
 proctype.c | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/injdll.c b/injdll.c
index 74a4aeb..e243d3a 100644
--- a/injdll.c
+++ b/injdll.c
@@ -24,9 +24,10 @@ static PVOID FindMem( HANDLE hProcess, PBYTE base, DWORD len )
     if ((minfo.State & MEM_FREE) && minfo.RegionSize >= len)
     {
 #ifdef _WIN64
-      if ((PBYTE)minfo.BaseAddress - base > 0xFfFfFfFf - len)
+      if ((PBYTE)minfo.BaseAddress - base > 0xFFFFffff - len)
 	return NULL;
 #endif
+      // Round up to the allocation granularity, presumed to be 64Ki.
       mem = VirtualAllocEx( hProcess, (PVOID)
 			    (((DWORD_PTR)minfo.BaseAddress + 0xFFFF) & ~0xFFFF),
 			    len, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE );
diff --git a/proctype.c b/proctype.c
index 0dca45e..7bb6d43 100644
--- a/proctype.c
+++ b/proctype.c
@@ -63,8 +63,8 @@ int ProcessType( LPPROCESS_INFORMATION ppi, PBYTE* pBase, BOOL* gui )
 	&& !(nt_header.FileHeader.Characteristics & IMAGE_FILE_DLL))
     {
       // Don't load into ansicon.exe, it wants to do that itself.
-      if (nt_header.OptionalHeader.MajorImageVersion == 20033 &&
-	  nt_header.OptionalHeader.MinorImageVersion == 18771)
+      if (nt_header.OptionalHeader.MajorImageVersion == 20033 &&    // 'AN'
+	  nt_header.OptionalHeader.MinorImageVersion == 18771)	    // 'SI'
 	return -1;
 
       *pBase = minfo.BaseAddress;