Merge branch 'memory-fixes' into 'master'

Memory fixes & improvements

See merge request metin2/server!1

db/src/Peer.cpp

@@ -63,12 +63,19 @@ void CPeer::SetUserCount(DWORD dwCount)
 
 bool CPeer::PeekPacket(int & iBytesProceed, BYTE & header, DWORD & dwHandle, DWORD & dwLength, const char ** data)
 {
+    // Return if not enough data was received to read the header
 	if (GetRecvLength() < iBytesProceed + 9)
 		return false;
 
 	const char * buf = (const char *) GetRecvBuffer(iBytesProceed + 9);
+    if (!buf) {
+        sys_err("PeekPacket: Failed to get network buffer!");
+        return false;
+    }
+
 	buf += iBytesProceed;
 
+    // Read the header data
 	header	= *(buf++);
 
 	dwHandle	= *((DWORD *) buf);
@@ -77,7 +84,7 @@ bool CPeer::PeekPacket(int & iBytesProceed, BYTE & header, DWORD & dwHandle, DWO
 	dwLength	= *((DWORD *) buf);
 	buf		+= sizeof(DWORD);
 
-	//sys_log(0, "%d header %d handle %u length %u", GetRecvLength(), header, dwHandle, dwLength);
+    // Ensure that all the data was fully received
 	if (iBytesProceed + dwLength + 9 > (DWORD) GetRecvLength())
 	{
 		sys_log(0, "PeekPacket: not enough buffer size: len %u, recv %d", 
@@ -85,6 +92,17 @@ bool CPeer::PeekPacket(int & iBytesProceed, BYTE & header, DWORD & dwHandle, DWO
 		return false;
 	}
 
+    // Ensure that all the required data is available in a contiguous area
+    buf = (const char *) GetRecvBuffer(iBytesProceed + dwLength + 9);
+    if (!buf) {
+        sys_err("PeekPacket: Failed to get network buffer!");
+        return false;
+    }
+
+    // Skip the header
+    buf += iBytesProceed + 9;
+
+    // Set the data pointer
 	*data = buf;
 	iBytesProceed += dwLength + 9;
 	return true;

game/CMakeLists.txt

@@ -49,4 +49,3 @@ find_package (Threads REQUIRED)
 target_link_libraries (${PROJECT_NAME} Threads::Threads)
 
 target_link_libraries(${PROJECT_NAME} libgame libpoly libsql libthecore liblua)
-

game/src/battle.cpp

@@ -22,8 +22,6 @@
 #include "ani.h"
 #include "locale_service.h"
 
-int battle_hit(LPCHARACTER ch, LPCHARACTER victim, int & iRetDam);
-
 bool battle_distance_valid_by_xy(int x, int y, int tx, int ty)
 {
 	int distance = DISTANCE_APPROX(x - tx, y - ty);
@@ -161,9 +159,7 @@ int battle_melee_attack(LPCHARACTER ch, LPCHARACTER victim)
 	const PIXEL_POSITION & vpos = victim->GetXYZ();
 	ch->SetRotationToXY(vpos.x, vpos.y);
 
-	int dam;
+	return battle_hit(ch, victim);
-	int ret = battle_hit(ch, victim, dam);
-	return (ret);
 }
 
 // 실제 GET_BATTLE_VICTIM을 NULL로 만들고 이벤트를 캔슬 시킨다.
@@ -633,12 +629,8 @@ void NormalAttackAffect(LPCHARACTER pkAttacker, LPCHARACTER pkVictim)
 	AttackAffect(pkAttacker, pkVictim, POINT_SLOW_PCT, IMMUNE_SLOW,  AFFECT_SLOW, POINT_MOV_SPEED, -30, AFF_SLOW, 20,		"SLOW");
 }
 
-int battle_hit(LPCHARACTER pkAttacker, LPCHARACTER pkVictim, int & iRetDam)
+int battle_hit(LPCHARACTER pkAttacker, LPCHARACTER pkVictim)
 {
-	//PROF_UNIT puHit("Hit");
-	if (test_server)
-		sys_log(0, "battle_hit : [%s] attack to [%s] : dam :%d type :%d", pkAttacker->GetName(), pkVictim->GetName(), iRetDam);
-
 	int iDam = CalcMeleeDamage(pkAttacker, pkVictim);
 
 	if (iDam <= 0)
@@ -684,7 +676,9 @@ int battle_hit(LPCHARACTER pkAttacker, LPCHARACTER pkVictim, int & iRetDam)
 	float tempIDam = iDam;
 	iDam = attMul * tempIDam + 0.5f;
 
-	iRetDam = iDam;
+    //PROF_UNIT puHit("Hit");
+    if (test_server)
+        sys_log(0, "battle_hit : [%s] attack to [%s] : dam: %d", pkAttacker->GetName(), pkVictim->GetName(), iDam);
 
 	//PROF_UNIT puDam("Dam");
 	if (pkVictim->Damage(pkAttacker, iDam, DAMAGE_TYPE_NORMAL))

game/src/battle.h

@@ -28,6 +28,8 @@ extern int	battle_count_attackers(LPCHARACTER ch);
 
 extern void	NormalAttackAffect(LPCHARACTER pkAttacker, LPCHARACTER pkVictim);
 
+extern int battle_hit(LPCHARACTER ch, LPCHARACTER victim);
+
 // 특성 공격
 inline void AttackAffect(LPCHARACTER pkAttacker,
 		LPCHARACTER pkVictim,

game/src/char.h

@@ -1982,8 +1982,8 @@ class CHARACTER : public CEntity, public CFSM, public CHorseRider
 
 		//독일 선물 기능 패킷 임시 저장
 	private:
-		unsigned int itemAward_vnum;
+		unsigned int itemAward_vnum = 0;
-		char		 itemAward_cmd[20];
+		char		 itemAward_cmd[20] = "";
 		//bool		 itemAward_flag;
 	public:
 		unsigned int GetItemAward_vnum() { return itemAward_vnum; }

game/src/config.cpp

@@ -169,18 +169,16 @@ void map_allow_add(int index)
 	s_set_map_allows.insert(index);
 }
 
-void map_allow_copy(LONG * pl, int size)
+void map_allow_copy(int * pl, int size)
 {
 	int iCount = 0;
-	std::set<int>::iterator it = s_set_map_allows.begin();
 
-	while (it != s_set_map_allows.end())
+	for (auto mapId: s_set_map_allows)
 	{
-		int i = *(it++);
+        if (iCount >= size)
-		*(pl++) = i;
-
-		if (++iCount > size)
             break;
+
+		pl[iCount++] = mapId;
 	}
 }
 

game/src/config.h

@@ -37,7 +37,7 @@ extern bool	g_bTrafficProfileOn;		///< true
 extern BYTE	g_bChannel;
 
 extern bool	map_allow_find(int index);
-extern void	map_allow_copy(LONG * pl, int size);
+extern void	map_allow_copy(int * pl, int size);
 extern bool	no_wander;
 
 extern int	g_iUserLimit;