From 8d5020c5b9d13718c52a1a1a7c3bbe640c83a5b1 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 11 Jul 2018 02:21:41 +0300
Subject: Update packet CZ_PC_BUY_CASH_POINT_ITEM.

---
 src/map/clif.c           | 34 +++++++++++++++++-----------------
 src/map/packets_struct.h | 25 +++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/src/map/clif.c b/src/map/clif.c
index a133b8da1..45dafc462 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -16288,33 +16288,33 @@ static void clif_parse_cashshop_buy(int fd, struct map_session_data *sd) __attri
 static void clif_parse_cashshop_buy(int fd, struct map_session_data *sd)
 {
 	int fail = 0;
+	const struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM *p = RFIFOP(fd, 0);
 
-	if( sd->state.trading || !sd->npc_shopid || pc_has_permission(sd,PC_PERM_DISABLE_STORE) )
+	if (sd->state.trading || !sd->npc_shopid || pc_has_permission(sd,PC_PERM_DISABLE_STORE)) {
 		fail = 1;
-	else {
-#if PACKETVER < 20101116
-		short nameid = RFIFOW(fd,2);
-		short amount = RFIFOW(fd,4);
-		int points = RFIFOL(fd,6);
-
-		fail = npc->cashshop_buy(sd, nameid, amount, points);
+	} else {
+#if PACKETVER < 20070711
+		fail = npc->cashshop_buy(sd, p->itemId, p->amount, 0);
+#elif PACKETVER < 20101116
+		fail = npc->cashshop_buy(sd, p->itemId, p->amount, p->kafraPoints);
 #else
-		int len = RFIFOW(fd,2);
+		int len = p->packetLength;
+		int needLen;
 		int points;
 		int count;
 		struct itemlist item_list = { 0 };
 		int i;
 
-		if (len < 10) {
+		if (len < sizeof(struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM)) {
 			ShowWarning("Player %d sent incorrect cash shop buy packet (len %d)!\n", sd->status.char_id, len);
 			return;
 		}
 
-		points = RFIFOL(fd, 4);
-		count = RFIFOW(fd, 8);
-
-		if (len != 10 + count * 4) {
-			ShowWarning("Player %d sent incorrect cash shop buy packet (len %d:%d)!\n", sd->status.char_id, len, 10 + count * 4);
+		points = p->kafraPoints;
+		count = p->count;
+		needLen = sizeof(struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM) + count * sizeof(struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM_sub);
+		if (len != needLen) {
+			ShowWarning("Player %d sent incorrect cash shop buy packet (len %d:%d)!\n", sd->status.char_id, len, needLen);
 			return;
 		}
 
@@ -16323,8 +16323,8 @@ static void clif_parse_cashshop_buy(int fd, struct map_session_data *sd)
 		for (i = 0; i < count; i++) {
 			struct itemlist_entry entry = { 0 };
 
-			entry.amount = RFIFOW(fd, 10 + 4 * i);
-			entry.id =     RFIFOW(fd, 10 + 4 * i + 2); // Nameid
+			entry.amount = p->items[i].amount;
+			entry.id =     p->items[i].itemId;
 
 			VECTOR_PUSH(item_list, entry);
 		}
diff --git a/src/map/packets_struct.h b/src/map/packets_struct.h
index 3db9c7322..ab78ed6b9 100644
--- a/src/map/packets_struct.h
+++ b/src/map/packets_struct.h
@@ -2499,6 +2499,31 @@ struct PACKET_ZC_PC_CASH_POINT_ITEMLIST {
 	struct PACKET_ZC_PC_CASH_POINT_ITEMLIST_sub items[];
 } __attribute__((packed));
 
+struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM_sub {
+	uint16 amount;
+#if PACKETVER_RE_NUM >= 20180704
+	uint32 itemId;
+#else
+	uint16 itemId;
+#endif
+} __attribute__((packed));
+
+struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM {
+	int16 packetType;
+#if PACKETVER >= 20101116
+	int16 packetLength;
+	uint32 kafraPoints;
+	uint16 count;
+	struct PACKET_CZ_PC_BUY_CASH_POINT_ITEM_sub items[];
+#else
+	uint16 itemId;
+	uint16 amount;
+#if PACKETVER >= 20070711
+	uint32 kafraPoints;
+#endif
+#endif
+} __attribute__((packed));
+
 #if !defined(sun) && (!defined(__NETBSD__) || __NetBSD_Version__ >= 600000000) // NetBSD 5 and Solaris don't like pragma pack but accept the packed attribute
 #pragma pack(pop)
 #endif // not NetBSD < 6 / Solaris
-- 
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