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-rw-r--r--src/map/clif.c23
-rw-r--r--src/map/npc.c72
-rw-r--r--src/map/npc.h4
3 files changed, 58 insertions, 41 deletions
diff --git a/src/map/clif.c b/src/map/clif.c
index eb67723e2..80eb7796a 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -10534,16 +10534,29 @@ void clif_parse_NpcBuyListSend(int fd, struct map_session_data* sd) __attribute_
/// 00c8 <packet len>.W { <amount>.W <name id>.W }*
void clif_parse_NpcBuyListSend(int fd, struct map_session_data* sd)
{
- int n = (RFIFOW(fd,2)-4) /4;
+ int n = ((int)RFIFOW(fd,2)-4) / 4;
int result;
+ Assert_retv(n >= 0);
+
if( sd->state.trading || !sd->npc_shopid || pc_has_permission(sd,PC_PERM_DISABLE_STORE) ) {
result = 1;
} else {
- unsigned short *item_list = aMalloc(sizeof(*item_list) * 2 * n);
- memcpy(item_list, RFIFOP(fd,4), sizeof(*item_list) * 2 * n);
- result = npc->buylist(sd,n,item_list);
- aFree(item_list);
+ struct itemlist item_list = { 0 };
+ int i;
+
+ VECTOR_INIT(item_list);
+ VECTOR_ENSURE(item_list, n, 1);
+ for (i = 0; i < n; i++) {
+ struct itemlist_entry entry = { 0 };
+
+ entry.amount = RFIFOW(fd, 4 + 4 * i);
+ entry.id = RFIFOW(fd, 4 + 4 * i + 2);
+
+ VECTOR_PUSH(item_list, entry);
+ }
+ result = npc->buylist(sd, &item_list);
+ VECTOR_CLEAR(item_list);
}
sd->npc_shopid = 0; //Clear shop data.
diff --git a/src/map/npc.c b/src/map/npc.c
index 25a972299..042aa43b5 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -1485,7 +1485,7 @@ int npc_cashshop_buylist(struct map_session_data *sd, int points, struct itemlis
}
//npc_buylist for script-controlled shops.
-int npc_buylist_sub(struct map_session_data* sd, int n, unsigned short* item_list, struct npc_data* nd)
+int npc_buylist_sub(struct map_session_data *sd, struct itemlist *item_list, struct npc_data *nd)
{
char npc_ev[EVENT_NAME_LENGTH];
int i;
@@ -1497,9 +1497,12 @@ int npc_buylist_sub(struct map_session_data* sd, int n, unsigned short* item_lis
script->cleararray_pc(sd, "@bought_quantity", (void*)0);
// save list of bought items
- for( i = 0; i < n; i++ ) {
- script->setarray_pc(sd, "@bought_nameid", i, (void*)(intptr_t)item_list[i*2+1], &key_nameid);
- script->setarray_pc(sd, "@bought_quantity", i, (void*)(intptr_t)item_list[i*2], &key_amount);
+ for (i = 0; i < VECTOR_LENGTH(*item_list); i++) {
+ struct itemlist_entry *entry = &VECTOR_INDEX(*item_list, i);
+ intptr_t nameid = entry->id;
+ intptr_t amount = entry->amount;
+ script->setarray_pc(sd, "@bought_nameid", i, (void *)nameid, &key_nameid);
+ script->setarray_pc(sd, "@bought_quantity", i, (void *)amount, &key_amount);
}
// invoke event
@@ -1803,11 +1806,15 @@ int npc_cashshop_buy(struct map_session_data *sd, int nameid, int amount, int po
return ERROR_TYPE_NONE;
}
-/// Player item purchase from npc shop.
-///
-/// @param item_list 'n' pairs <amount,itemid>
-/// @return result code for clif->parse_NpcBuyListSend
-int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list) {
+/**
+ * Processes a player item purchase from npc shop.
+ *
+ * @param sd Buyer character.
+ * @param item_list List of items.
+ * @return result code for clif->parse_NpcBuyListSend.
+ */
+int npc_buylist(struct map_session_data *sd, struct itemlist *item_list)
+{
struct npc_data* nd;
struct npc_item_list *shop = NULL;
int64 z;
@@ -1836,30 +1843,29 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list) {
w = 0;
new_ = 0;
// process entries in buy list, one by one
- for( i = 0; i < n; ++i ) {
- int nameid, amount, value;
+ for (i = 0; i < VECTOR_LENGTH(*item_list); ++i) {
+ int value;
+ struct itemlist_entry *entry = &VECTOR_INDEX(*item_list, i);
// find this entry in the shop's sell list
ARR_FIND( 0, shop_size, j,
- item_list[i*2+1] == shop[j].nameid || //Normal items
- item_list[i*2+1] == itemdb_viewid(shop[j].nameid) //item_avail replacement
+ entry->id == shop[j].nameid || //Normal items
+ entry->id == itemdb_viewid(shop[j].nameid) //item_avail replacement
);
-
- if( j == shop_size )
+ if (j == shop_size)
return 3; // no such item in shop
- amount = item_list[i*2+0];
- nameid = item_list[i*2+1] = shop[j].nameid; //item_avail replacement
+ entry->id = shop[j].nameid; //item_avail replacement
value = shop[j].value;
- if( !itemdb->exists(nameid) )
+ if (!itemdb->exists(entry->id))
return 3; // item no longer in itemdb
- if( !itemdb->isstackable(nameid) && amount > 1 ) {
+ if (!itemdb->isstackable(entry->id) && entry->amount > 1) {
//Exploit? You can't buy more than 1 of equipment types o.O
ShowWarning("Player %s (%d:%d) sent a hexed packet trying to buy %d of non-stackable item %d!\n",
- sd->status.name, sd->status.account_id, sd->status.char_id, amount, nameid);
- amount = item_list[i*2+0] = 1;
+ sd->status.name, sd->status.account_id, sd->status.char_id, entry->amount, entry->id);
+ entry->amount = 1;
}
if( nd->master_nd ) {
@@ -1867,7 +1873,7 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list) {
continue;
}
- switch( pc->checkadditem(sd,nameid,amount) ) {
+ switch (pc->checkadditem(sd, entry->id, entry->amount)) {
case ADDITEM_EXIST:
break;
@@ -1881,12 +1887,12 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list) {
value = pc->modifybuyvalue(sd,value);
- z += (int64)value * amount;
- w += itemdb_weight(nameid) * amount;
+ z += (int64)value * entry->amount;
+ w += itemdb_weight(entry->id) * entry->amount;
}
- if( nd->master_nd != NULL ) //Script-based shops.
- return npc->buylist_sub(sd,n,item_list,nd->master_nd);
+ if (nd->master_nd != NULL) //Script-based shops.
+ return npc->buylist_sub(sd, item_list, nd->master_nd);
if (z > sd->status.zeny)
return 1; // Not enough Zeny
@@ -1897,19 +1903,17 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list) {
pc->payzeny(sd, (int)z, LOG_TYPE_NPC, NULL);
- for( i = 0; i < n; ++i ) {
- int nameid = item_list[i*2+1];
- int amount = item_list[i*2+0];
-
- if (itemdb_type(nameid) == IT_PETEGG) {
- pet->create_egg(sd, nameid);
+ for (i = 0; i < VECTOR_LENGTH(*item_list); ++i) {
+ struct itemlist_entry *entry = &VECTOR_INDEX(*item_list, i);
+ if (itemdb_type(entry->id) == IT_PETEGG) {
+ pet->create_egg(sd, entry->id);
} else {
struct item item_tmp;
memset(&item_tmp,0,sizeof(item_tmp));
- item_tmp.nameid = nameid;
+ item_tmp.nameid = entry->id;
item_tmp.identify = 1;
- pc->additem(sd,&item_tmp,amount,LOG_TYPE_NPC);
+ pc->additem(sd, &item_tmp, entry->amount, LOG_TYPE_NPC);
}
}
diff --git a/src/map/npc.h b/src/map/npc.h
index 1c7ad8398..dbd740b46 100644
--- a/src/map/npc.h
+++ b/src/map/npc.h
@@ -233,9 +233,9 @@ struct npc_interface {
int (*scriptcont) (struct map_session_data *sd, int id, bool closing);
int (*buysellsel) (struct map_session_data *sd, int id, int type);
int (*cashshop_buylist) (struct map_session_data *sd, int points, struct itemlist *item_list);
- int (*buylist_sub) (struct map_session_data *sd, int n, unsigned short *item_list, struct npc_data *nd);
+ int (*buylist_sub) (struct map_session_data *sd, struct itemlist *item_list, struct npc_data *nd);
int (*cashshop_buy) (struct map_session_data *sd, int nameid, int amount, int points);
- int (*buylist) (struct map_session_data *sd, int n, unsigned short *item_list);
+ int (*buylist) (struct map_session_data *sd, struct itemlist *item_list);
int (*selllist_sub) (struct map_session_data *sd, int n, unsigned short *item_list, struct npc_data *nd);
int (*selllist) (struct map_session_data *sd, int n, unsigned short *item_list);
int (*remove_map) (struct npc_data *nd);
generated by cgit v1.2.3-60-g2f50 (git 2.42.0) at 2024-06-28 22:09:43 +0000