From b582709d38680d33f74c74f83fbabbb2f4d49232 Mon Sep 17 00:00:00 2001
From: Anders Jenbo <anders@jenbo.dk>
Date: Mon, 14 Jan 2019 02:20:53 +0100
Subject: [PATCH] dthread_send_delta bin exact (#563)

---
 Source/dthread.cpp | 34 ++++++++++++++++++----------------
 Source/msg.cpp     |  2 +-
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/Source/dthread.cpp b/Source/dthread.cpp
index e2da38c00..d2c790683 100644
--- a/Source/dthread.cpp
+++ b/Source/dthread.cpp
@@ -57,24 +57,26 @@ void __fastcall dthread_send_delta(int pnum, char cmd, void *pbSrc, int dwLen)
 {
 	TMegaPkt *pkt;
 	TMegaPkt *p;
-	TMegaPkt **last;
 
-	if (gbMaxPlayers != 1) {
-		pkt = (TMegaPkt *)DiabloAllocPtr(dwLen + 20);
-		pkt->pNext = 0;
-		pkt->dwSpaceLeft = pnum;
-		pkt->data[0] = cmd;
-		*(_DWORD *)&pkt->data[4] = dwLen;
-		memcpy(&pkt->data[8], pbSrc, dwLen);
-		EnterCriticalSection(&sgMemCrit);
-		last = &sgpInfoHead;
-		for (p = sgpInfoHead; p != NULL; p = p->pNext) {
-			last = &p->pNext;
-		}
-		*last = pkt;
-		SetEvent(sghWorkToDoEvent);
-		LeaveCriticalSection(&sgMemCrit);
+	if (gbMaxPlayers == 1) {
+		return;
 	}
+
+	pkt = (TMegaPkt *)DiabloAllocPtr(dwLen + 20);
+	pkt->pNext = NULL;
+	pkt->dwSpaceLeft = pnum;
+	pkt->data[0] = cmd;
+	*(_DWORD *)&pkt->data[4] = dwLen;
+	memcpy(&pkt->data[8], pbSrc, dwLen);
+	EnterCriticalSection(&sgMemCrit);
+	p = (TMegaPkt *)&sgpInfoHead;
+	while (p->pNext) {
+		p = p->pNext;
+	}
+	p->pNext = pkt;
+
+	SetEvent(sghWorkToDoEvent);
+	LeaveCriticalSection(&sgMemCrit);
 }
 // 679660: using guessed type char gbMaxPlayers;
 
diff --git a/Source/msg.cpp b/Source/msg.cpp
index bcb132f83..837e42139 100644
--- a/Source/msg.cpp
+++ b/Source/msg.cpp
@@ -55,7 +55,7 @@ TMegaPkt *__cdecl msg_get_next_packet()
 	TMegaPkt *result;
 
 	sgpCurrPkt = (TMegaPkt *)DiabloAllocPtr(32008);
-	sgpCurrPkt->pNext = 0;
+	sgpCurrPkt->pNext = NULL;
 	sgpCurrPkt->dwSpaceLeft = 32000;
 
 	result = (TMegaPkt *)&sgpMegaPkt;