summaryrefslogtreecommitdiff
path: root/src/map/trade.c
blob: 83426c40770329358a6c9df3b815e1826438becd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
// See the LICENSE file
// Portions Copyright (c) Athena Dev Teams

#define HERCULES_CORE

#include "trade.h"

#include <stdio.h>
#include <string.h>

#include "atcommand.h"
#include "battle.h"
#include "chrif.h"
#include "clif.h"
#include "intif.h"
#include "itemdb.h"
#include "log.h"
#include "map.h"
#include "npc.h"
#include "path.h"
#include "pc.h"
#include "storage.h"
#include "../common/nullpo.h"
#include "../common/socket.h"

struct trade_interface trade_s;

/*==========================================
 * Initiates a trade request.
 *------------------------------------------*/
void trade_traderequest(struct map_session_data *sd, struct map_session_data *target_sd)
{
	nullpo_retv(sd);

	if (map->list[sd->bl.m].flag.notrade) {
		clif->message (sd->fd, msg_txt(272));
		return; //Can't trade in notrade mapflag maps.
	}

	if (target_sd == NULL || sd == target_sd) {
		clif->tradestart(sd, 1); // character does not exist
		return;
	}

	if (target_sd->npc_id)
	{	//Trade fails if you are using an NPC.
		clif->tradestart(sd, 2);
		return;
	}

	if (!battle_config.invite_request_check) {
		if (target_sd->guild_invite > 0 || target_sd->party_invite > 0 || target_sd->adopt_invite) {
			clif->tradestart(sd, 2);
			return;
		}
	}

	if ( sd->trade_partner != 0 ) { // If a character tries to trade to another one then cancel the previous one
		struct map_session_data *previous_sd = map->id2sd(sd->trade_partner);
		if( previous_sd ){
			previous_sd->trade_partner = 0;
			clif->tradecancelled(previous_sd);
		} // Once cancelled then continue to the new one.
		sd->trade_partner = 0;
		clif->tradecancelled(sd);
	}

	if (target_sd->trade_partner != 0) {
		clif->tradestart(sd, 2); // person is in another trade
		return;
	}

	if (!pc_can_give_items(sd) || !pc_can_give_items(target_sd)) //check if both GMs are allowed to trade
	{
		clif->message(sd->fd, msg_txt(246));
		clif->tradestart(sd, 2); // GM is not allowed to trade
		return;
	}

	// Players can not request trade from far away, unless they are allowed to use @trade.
	if (!pc->can_use_command(sd, "@trade") &&
	    (sd->bl.m != target_sd->bl.m || !check_distance_bl(&sd->bl, &target_sd->bl, TRADE_DISTANCE))) {
		clif->tradestart(sd, 0); // too far
		return ;
	}

	target_sd->trade_partner = sd->status.account_id;
	sd->trade_partner = target_sd->status.account_id;
	clif->traderequest(target_sd, sd->status.name);
}

/*==========================================
 * Reply to a trade-request.
 * Type values:
 * 0: Char is too far
 * 1: Character does not exist
 * 2: Trade failed
 * 3: Accept
 * 4: Cancel
 * Weird enough, the client should only send 3/4
 * and the server is the one that can reply 0~2
 *------------------------------------------*/
void trade_tradeack(struct map_session_data *sd, int type) {
	struct map_session_data *tsd;
	nullpo_retv(sd);

	if (sd->state.trading || !sd->trade_partner)
		return; //Already trading or no partner set.

	if ((tsd = map->id2sd(sd->trade_partner)) == NULL) {
		clif->tradestart(sd, 1); // character does not exist
		sd->trade_partner=0;
		return;
	}

	if (tsd->state.trading || tsd->trade_partner != sd->bl.id)
	{
		clif->tradestart(sd, 2);
		sd->trade_partner=0;
		return; //Already trading or wrong partner.
	}

	if (type == 4) { // Cancel
		clif->tradestart(tsd, type);
		clif->tradestart(sd, type);
		sd->state.deal_locked = 0;
		sd->trade_partner = 0;
		tsd->state.deal_locked = 0;
		tsd->trade_partner = 0;
		return;
	}

	if (type != 3)
		return; //If client didn't send accept, it's a broken packet?

	// Players can not request trade from far away, unless they are allowed to use @trade.
	// Check here as well since the original character could had warped.
	if (!pc->can_use_command(sd, "@trade") &&
	    (sd->bl.m != tsd->bl.m || !check_distance_bl(&sd->bl, &tsd->bl, TRADE_DISTANCE))) {
		clif->tradestart(sd, 0); // too far
		sd->trade_partner=0;
		tsd->trade_partner = 0;
		return;
	}

	//Check if you can start trade.
	if (sd->npc_id || sd->state.vending || sd->state.buyingstore || sd->state.storage_flag ||
		tsd->npc_id || tsd->state.vending || tsd->state.buyingstore || tsd->state.storage_flag)
	{	//Fail
		clif->tradestart(sd, 2);
		clif->tradestart(tsd, 2);
		sd->state.deal_locked = 0;
		sd->trade_partner = 0;
		tsd->state.deal_locked = 0;
		tsd->trade_partner = 0;
		return;
	}

	//Initiate trade
	sd->state.trading = 1;
	tsd->state.trading = 1;
	memset(&sd->deal, 0, sizeof(sd->deal));
	memset(&tsd->deal, 0, sizeof(tsd->deal));
	clif->tradestart(tsd, type);
	clif->tradestart(sd, type);
}

/*==========================================
 * Check here hacker for duplicate item in trade
 * normal client refuse to have 2 same types of item (except equipment) in same trade window
 * normal client authorise only no equiped item and only from inventory
 *------------------------------------------*/
int impossible_trade_check(struct map_session_data *sd)
{
	struct item inventory[MAX_INVENTORY];
	char message_to_gm[200];
	int i, index;

	nullpo_retr(1, sd);

	if(sd->deal.zeny > sd->status.zeny) {
		pc_setglobalreg(sd,script->add_str("ZENY_HACKER"),1);
		return -1;
	}

	// get inventory of player
	memcpy(&inventory, &sd->status.inventory, sizeof(struct item) * MAX_INVENTORY);

	// remove this part: arrows can be trade and equiped
	// re-added! [celest]
	// remove equiped items (they can not be trade)
	for (i = 0; i < MAX_INVENTORY; i++)
		if (inventory[i].nameid > 0 && inventory[i].equip && !(inventory[i].equip & EQP_AMMO))
			memset(&inventory[i], 0, sizeof(struct item));

	// check items in player inventory
	for(i = 0; i < 10; i++) {
		if (!sd->deal.item[i].amount)
			continue;
		index = sd->deal.item[i].index;
		if (inventory[index].amount < sd->deal.item[i].amount) {
			// if more than the player have -> hack
			sprintf(message_to_gm, msg_txt(538), sd->status.name, sd->status.account_id); // Hack on trade: character '%s' (account: %d) try to trade more items that he has.
			intif->wis_message_to_gm(map->wisp_server_name, PC_PERM_RECEIVE_HACK_INFO, message_to_gm);
			sprintf(message_to_gm, msg_txt(539), inventory[index].amount, inventory[index].nameid, sd->deal.item[i].amount); // This player has %d of a kind of item (id: %d), and try to trade %d of them.
			intif->wis_message_to_gm(map->wisp_server_name, PC_PERM_RECEIVE_HACK_INFO, message_to_gm);
			// if we block people
			if (battle_config.ban_hack_trade < 0) {
				chrif->char_ask_name(-1, sd->status.name, 1, 0, 0, 0, 0, 0, 0); // type: 1 - block
				set_eof(sd->fd); // forced to disconnect because of the hack
				// message about the ban
				strcpy(message_to_gm, msg_txt(540)); //  This player has been definitively blocked.
			// if we ban people
			} else if (battle_config.ban_hack_trade > 0) {
				chrif->char_ask_name(-1, sd->status.name, 2, 0, 0, 0, 0, battle_config.ban_hack_trade, 0); // type: 2 - ban (year, month, day, hour, minute, second)
				set_eof(sd->fd); // forced to disconnect because of the hack
				// message about the ban
				sprintf(message_to_gm, msg_txt(507), battle_config.ban_hack_trade); //  This player has been banned for %d minute(s).
			} else
				// message about the ban
				strcpy(message_to_gm, msg_txt(508)); //  This player hasn't been banned (Ban option is disabled).

			intif->wis_message_to_gm(map->wisp_server_name, PC_PERM_RECEIVE_HACK_INFO, message_to_gm);
			return 1;
		}
		inventory[index].amount -= sd->deal.item[i].amount; // remove item from inventory
	}
	return 0;
}

/*==========================================
 * Checks if trade is possible (against zeny limits, inventory limits, etc)
 *------------------------------------------*/
int trade_check(struct map_session_data *sd, struct map_session_data *tsd)
{
	struct item inventory[MAX_INVENTORY];
	struct item inventory2[MAX_INVENTORY];
	struct item_data *data;
	int trade_i, i, n;
	short amount;

	// check zenys value against hackers (Zeny was already checked on time of adding, but you never know when you lost some zeny since then.
	if(sd->deal.zeny > sd->status.zeny || (tsd->status.zeny > MAX_ZENY - sd->deal.zeny))
		return 0;
	if(tsd->deal.zeny > tsd->status.zeny || (sd->status.zeny > MAX_ZENY - tsd->deal.zeny))
		return 0;

	// get inventory of player
	memcpy(&inventory, &sd->status.inventory, sizeof(struct item) * MAX_INVENTORY);
	memcpy(&inventory2, &tsd->status.inventory, sizeof(struct item) * MAX_INVENTORY);

	// check free slot in both inventory
	for(trade_i = 0; trade_i < 10; trade_i++) {
		amount = sd->deal.item[trade_i].amount;
		if (amount) {
			n = sd->deal.item[trade_i].index;
			if (amount > inventory[n].amount)
				return 0; //qty Exploit?

			data = itemdb->search(inventory[n].nameid);
			i = MAX_INVENTORY;
			if (itemdb->isstackable2(data)) { //Stackable item.
				for(i = 0; i < MAX_INVENTORY; i++)
					if (inventory2[i].nameid == inventory[n].nameid &&
						inventory2[i].card[0] == inventory[n].card[0] && inventory2[i].card[1] == inventory[n].card[1] &&
						inventory2[i].card[2] == inventory[n].card[2] && inventory2[i].card[3] == inventory[n].card[3]) {
						if (inventory2[i].amount + amount > MAX_AMOUNT)
							return 0;
						inventory2[i].amount += amount;
						inventory[n].amount -= amount;
						break;
					}
			}

			if (i == MAX_INVENTORY) {// look for an empty slot.
				for(i = 0; i < MAX_INVENTORY && inventory2[i].nameid; i++);
				if (i == MAX_INVENTORY)
					return 0;
				memcpy(&inventory2[i], &inventory[n], sizeof(struct item));
				inventory2[i].amount = amount;
				inventory[n].amount -= amount;
			}
		}
		amount = tsd->deal.item[trade_i].amount;
		if (!amount)
			continue;
		n = tsd->deal.item[trade_i].index;
		if (amount > inventory2[n].amount)
			return 0;
		// search if it's possible to add item (for full inventory)
		data = itemdb->search(inventory2[n].nameid);
		i = MAX_INVENTORY;
		if (itemdb->isstackable2(data)) {
			for(i = 0; i < MAX_INVENTORY; i++)
				if (inventory[i].nameid == inventory2[n].nameid &&
					inventory[i].card[0] == inventory2[n].card[0] && inventory[i].card[1] == inventory2[n].card[1] &&
					inventory[i].card[2] == inventory2[n].card[2] && inventory[i].card[3] == inventory2[n].card[3]) {
					if (inventory[i].amount + amount > MAX_AMOUNT)
						return 0;
					inventory[i].amount += amount;
					inventory2[n].amount -= amount;
					break;
				}
		}
		if (i == MAX_INVENTORY) {
			for(i = 0; i < MAX_INVENTORY && inventory[i].nameid; i++);
			if (i == MAX_INVENTORY)
				return 0;
			memcpy(&inventory[i], &inventory2[n], sizeof(struct item));
			inventory[i].amount = amount;
			inventory2[n].amount -= amount;
		}
	}

	return 1;
}

/*==========================================
 * Adds an item/qty to the trade window
 *------------------------------------------*/
void trade_tradeadditem(struct map_session_data *sd, short index, short amount) {
	struct map_session_data *target_sd;
	struct item *item;
	int trade_i, trade_weight;
	int src_lv, dst_lv;

	nullpo_retv(sd);
	if( !sd->state.trading || sd->state.deal_locked > 0 )
		return; //Can't add stuff.

	if( (target_sd = map->id2sd(sd->trade_partner)) == NULL )
	{
		trade->cancel(sd);
		return;
	}

	if( amount == 0 )
	{	//Why do this.. ~.~ just send an ack, the item won't display on the trade window.
		clif->tradeitemok(sd, index, TIO_SUCCESS);
		return;
	}

	index -= 2; // 0 is for zeny, 1 is unknown. Gravity, go figure...

	//Item checks...
	if( index < 0 || index >= MAX_INVENTORY )
		return;
	if( amount < 0 || amount > sd->status.inventory[index].amount )
		return;

	item = &sd->status.inventory[index];
	src_lv = pc_get_group_level(sd);
	dst_lv = pc_get_group_level(target_sd);
	if( !itemdb_cantrade(item, src_lv, dst_lv) && //Can't trade
		(pc->get_partner(sd) != target_sd || !itemdb_canpartnertrade(item, src_lv, dst_lv)) ) //Can't partner-trade
	{
		clif->message (sd->fd, msg_txt(260));
		clif->tradeitemok(sd, index+2, TIO_INDROCKS);
		return;
	}

	if( item->expire_time )
	{ // Rental System
		clif->message (sd->fd, msg_txt(260));
		clif->tradeitemok(sd, index+2, TIO_INDROCKS);
		return;
	}

	if( item->bound &&
			!( item->bound == IBT_GUILD && sd->status.guild_id == target_sd->status.guild_id ) &&
			!( item->bound == IBT_PARTY && sd->status.party_id == target_sd->status.party_id )
					&& !pc_can_give_bound_items(sd) ) {
		clif->message(sd->fd, msg_txt(293));
		clif->tradeitemok(sd, index+2, TIO_INDROCKS);
		return;
	}
	
	//Locate a trade position
	ARR_FIND( 0, 10, trade_i, sd->deal.item[trade_i].index == index || sd->deal.item[trade_i].amount == 0 );
	if( trade_i == 10 ) //No space left
	{
		clif->tradeitemok(sd, index+2, TIO_OVERWEIGHT);
		return;
	}

	trade_weight = sd->inventory_data[index]->weight * amount;
	if( target_sd->weight + sd->deal.weight + trade_weight > target_sd->max_weight )
	{	//fail to add item -- the player was over weighted.
		clif->tradeitemok(sd, index+2, TIO_OVERWEIGHT);
		return;
	}

	if( sd->deal.item[trade_i].index == index )
	{	//The same item as before is being readjusted.
		if( sd->deal.item[trade_i].amount + amount > sd->status.inventory[index].amount )
		{	//packet deal exploit check
			amount = sd->status.inventory[index].amount - sd->deal.item[trade_i].amount;
			trade_weight = sd->inventory_data[index]->weight * amount;
		}
		sd->deal.item[trade_i].amount += amount;
	}
	else
	{	//New deal item
		sd->deal.item[trade_i].index = index;
		sd->deal.item[trade_i].amount = amount;
	}
	sd->deal.weight += trade_weight;

	clif->tradeitemok(sd, index+2, TIO_SUCCESS); // Return the index as it was received
	clif->tradeadditem(sd, target_sd, index+2, amount);
}

/*==========================================
 * Adds the specified amount of zeny to the trade window
 *------------------------------------------*/
void trade_tradeaddzeny(struct map_session_data* sd, int amount)
{
	struct map_session_data* target_sd;
	nullpo_retv(sd);

	if( !sd->state.trading || sd->state.deal_locked > 0 )
		return; //Can't add stuff.

	if( (target_sd = map->id2sd(sd->trade_partner)) == NULL ) {
		trade->cancel(sd);
		return;
	}

	if( amount < 0 || amount > sd->status.zeny || amount > MAX_ZENY - target_sd->status.zeny )
	{	// invalid values, no appropriate packet for it => abort
		trade->cancel(sd);
		return;
	}

	sd->deal.zeny = amount;
	clif->tradeadditem(sd, target_sd, 0, amount);
}

/*==========================================
 * 'Ok' button on the trade window is pressed.
 *------------------------------------------*/
void trade_tradeok(struct map_session_data *sd) {
	struct map_session_data *target_sd;

	if(sd->state.deal_locked || !sd->state.trading)
		return;

	if ((target_sd = map->id2sd(sd->trade_partner)) == NULL) {
		trade->cancel(sd);
		return;
	}
	sd->state.deal_locked = 1;
	clif->tradeitemok(sd, 0, TIO_SUCCESS);
	clif->tradedeal_lock(sd, 0);
	clif->tradedeal_lock(target_sd, 1);
}

/*==========================================
 * 'Cancel' is pressed. (or trade was force-cancelled by the code)
 *------------------------------------------*/
void trade_tradecancel(struct map_session_data *sd) {
	struct map_session_data *target_sd;
	int trade_i;

	target_sd = map->id2sd(sd->trade_partner);

	if(!sd->state.trading)
	{ // Not trade acepted
		if( target_sd ) {
			target_sd->trade_partner = 0;
			clif->tradecancelled(target_sd);
		}
		sd->trade_partner = 0;
		clif->tradecancelled(sd);
		return;
	}

	for(trade_i = 0; trade_i < 10; trade_i++) { // give items back (only virtual)
		if (!sd->deal.item[trade_i].amount)
			continue;
		clif->additem(sd, sd->deal.item[trade_i].index, sd->deal.item[trade_i].amount, 0);
		sd->deal.item[trade_i].index = 0;
		sd->deal.item[trade_i].amount = 0;
	}
	if (sd->deal.zeny) {
		clif->updatestatus(sd, SP_ZENY);
		sd->deal.zeny = 0;
	}

	sd->state.deal_locked = 0;
	sd->state.trading = 0;
	sd->trade_partner = 0;
	clif->tradecancelled(sd);

	if (!target_sd)
		return;

	for(trade_i = 0; trade_i < 10; trade_i++) { // give items back (only virtual)
		if (!target_sd->deal.item[trade_i].amount)
			continue;
		clif->additem(target_sd, target_sd->deal.item[trade_i].index, target_sd->deal.item[trade_i].amount, 0);
		target_sd->deal.item[trade_i].index = 0;
		target_sd->deal.item[trade_i].amount = 0;
	}

	if (target_sd->deal.zeny) {
		clif->updatestatus(target_sd, SP_ZENY);
		target_sd->deal.zeny = 0;
	}
	target_sd->state.deal_locked = 0;
	target_sd->trade_partner = 0;
	target_sd->state.trading = 0;
	clif->tradecancelled(target_sd);
}

/*==========================================
 * lock sd and tsd trade data, execute the trade, clear, then save players
 *------------------------------------------*/
void trade_tradecommit(struct map_session_data *sd) {
	struct map_session_data *tsd;
	int trade_i;
	int flag;

	if (!sd->state.trading || !sd->state.deal_locked) //Locked should be 1 (pressed ok) before you can press trade.
		return;

	if ((tsd = map->id2sd(sd->trade_partner)) == NULL) {
		trade->cancel(sd);
		return;
	}

	sd->state.deal_locked = 2;

	if (tsd->state.deal_locked < 2)
		return; //Not yet time for trading.

	//Now is a good time (to save on resources) to check that the trade can indeed be made and it's not exploitable.
	// check exploit (trade more items that you have)
	if (trade->check_impossible(sd)) {
		trade->cancel(sd);
		return;
	}
	// check exploit (trade more items that you have)
	if (trade->check_impossible(tsd)) {
		trade->cancel(tsd);
		return;
	}
	// check for full inventory (can not add traded items)
	if (!trade->check(sd,tsd)) { // check the both players
		trade->cancel(sd);
		return;
	}

	// trade is accepted and correct.
	for( trade_i = 0; trade_i < 10; trade_i++ )
	{
		int n;
		if (sd->deal.item[trade_i].amount)
		{
			n = sd->deal.item[trade_i].index;

			flag = pc->additem(tsd, &sd->status.inventory[n], sd->deal.item[trade_i].amount,LOG_TYPE_TRADE);
			if (flag == 0)
				pc->delitem(sd, n, sd->deal.item[trade_i].amount, 1, 6, LOG_TYPE_TRADE);
			else
				clif->additem(sd, n, sd->deal.item[trade_i].amount, 0);
			sd->deal.item[trade_i].index = 0;
			sd->deal.item[trade_i].amount = 0;
		}
		if (tsd->deal.item[trade_i].amount)
		{
			n = tsd->deal.item[trade_i].index;

			flag = pc->additem(sd, &tsd->status.inventory[n], tsd->deal.item[trade_i].amount,LOG_TYPE_TRADE);
			if (flag == 0)
				pc->delitem(tsd, n, tsd->deal.item[trade_i].amount, 1, 6, LOG_TYPE_TRADE);
			else
				clif->additem(tsd, n, tsd->deal.item[trade_i].amount, 0);
			tsd->deal.item[trade_i].index = 0;
			tsd->deal.item[trade_i].amount = 0;
		}
	}

	if( sd->deal.zeny ) {
		pc->payzeny(sd ,sd->deal.zeny, LOG_TYPE_TRADE, tsd);
		pc->getzeny(tsd,sd->deal.zeny,LOG_TYPE_TRADE, sd);
		sd->deal.zeny = 0;

	}
	if ( tsd->deal.zeny) {
		pc->payzeny(tsd,tsd->deal.zeny,LOG_TYPE_TRADE, sd);
		pc->getzeny(sd ,tsd->deal.zeny,LOG_TYPE_TRADE, tsd);
		tsd->deal.zeny = 0;
	}

	sd->state.deal_locked = 0;
	sd->trade_partner = 0;
	sd->state.trading = 0;

	tsd->state.deal_locked = 0;
	tsd->trade_partner = 0;
	tsd->state.trading = 0;

	clif->tradecompleted(sd, 0);
	clif->tradecompleted(tsd, 0);

	// save both player to avoid crash: they always have no advantage/disadvantage between the 2 players
	if (map->save_settings&1)
  	{
		chrif->save(sd,0);
		chrif->save(tsd,0);
	}
}

void trade_defaults(void)
{
	trade = &trade_s;
	
	trade->request = trade_traderequest;
	trade->ack = trade_tradeack;
	trade->check_impossible = impossible_trade_check;
	trade->check = trade_check;
	trade->additem = trade_tradeadditem;
	trade->addzeny = trade_tradeaddzeny;
	trade->ok = trade_tradeok;
	trade->cancel = trade_tradecancel;
	trade->commit = trade_tradecommit;
}