/[LeafOK_CVS]/pvpgn-1.7.4/src/d2cs/handle_d2cs.c
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Annotation of /pvpgn-1.7.4/src/d2cs/handle_d2cs.c

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Revision 1.5 - (hide annotations)
Tue Jun 13 16:07:52 2006 UTC (19 years, 9 months ago) by sysadm
Branch: MAIN
Changes since 1.4: +4 -5 lines
Content type: text/x-csrc
Antibot (for non-password protected game)

1 sysadm 1.1 /*
2     * Copyright (C) 2000,2001 Onlyer (onlyer@263.net)
3     * Copyright (C) 2004 Olaf Freyer (aaron@cs.tu-berlin.de)
4     *
5     * This program is free software; you can redistribute it and/or
6     * modify it under the terms of the GNU General Public License
7     * as published by the Free Software Foundation; either version 2
8     * of the License, or (at your option) any later version.
9     *
10     * This program is distributed in the hope that it will be useful,
11     * but WITHOUT ANY WARRANTY; without even the implied warranty of
12     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13     * GNU General Public License for more details.
14     *
15     * You should have received a copy of the GNU General Public License
16     * along with this program; if not, write to the Free Software
17     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18     */
19     #include "common/setup_before.h"
20     #include "setup.h"
21    
22     #include <stdio.h>
23     #ifdef HAVE_STRING_H
24     # include <string.h>
25     #else
26     # ifdef HAVE_STRINGS_H
27     # include <strings.h>
28     # endif
29     # ifdef HAVE_MEMORY_H
30     # include <memory.h>
31     # endif
32     #endif
33     #ifdef STDC_HEADERS
34     # include <stdlib.h>
35     #else
36     # ifdef HAVE_MALLOC_H
37     # include <malloc.h>
38     # endif
39     #endif
40     #include "compat/memcpy.h"
41     #ifdef TIME_WITH_SYS_TIME
42     # include <time.h>
43     # include <sys/time.h>
44     #else
45     # ifdef HAVE_SYS_TIME_H
46     # include <sys/time.h>
47     # else
48     # include <time.h>
49     # endif
50     #endif
51     #ifdef HAVE_UNISTD_H
52     # include <unistd.h>
53     #endif
54     #ifdef HAVE_SYS_STAT_H
55     # include <sys/stat.h>
56     #endif
57    
58     #ifdef HAVE_SYS_SOCKET_H
59     # include <sys/socket.h>
60     #endif
61     #ifdef HAVE_NETINET_IN_H
62     # include <netinet/in.h>
63     #endif
64     #include "compat/socket.h"
65     #include "compat/netinet_in.h"
66     #ifdef HAVE_ARPA_INET_H
67     # include <arpa/inet.h>
68     #endif
69     #include "compat/inet_ntoa.h"
70    
71     #include "compat/pdir.h"
72     #include "compat/mkdir.h"
73     #include "d2charfile.h"
74     #include "connection.h"
75 sysadm 1.4 #include "d2charstatus.h"
76 sysadm 1.1 #include "game.h"
77     #include "bnetd.h"
78     #include "d2cs_protocol.h"
79     #include "d2cs_bnetd_protocol.h"
80     #include "handle_d2cs.h"
81     #include "d2ladder.h"
82     #include "gamequeue.h"
83     #include "serverqueue.h"
84     #include "prefs.h"
85     #include "common/bn_type.h"
86     #include "common/queue.h"
87     #include "common/packet.h"
88     #include "common/eventlog.h"
89     #include "d2charlist.h"
90     #include "common/elist.h"
91     #include "common/xalloc.h"
92     #include "common/setup_after.h"
93    
94 sysadm 1.2 /* sowater */
95     #include "d2cs_random.h"
96 sysadm 1.1
97     static int d2cs_send_client_ladder(t_connection * c, unsigned char type, unsigned short from);
98     static unsigned int d2cs_try_joingame(t_connection const * c, t_game const * game, char const * gamepass);
99    
100     DECLARE_PACKET_HANDLER(on_client_loginreq)
101     DECLARE_PACKET_HANDLER(on_client_createcharreq)
102     DECLARE_PACKET_HANDLER(on_client_creategamereq)
103     DECLARE_PACKET_HANDLER(on_client_joingamereq)
104     DECLARE_PACKET_HANDLER(on_client_gamelistreq)
105     DECLARE_PACKET_HANDLER(on_client_gameinforeq)
106     DECLARE_PACKET_HANDLER(on_client_charloginreq)
107     DECLARE_PACKET_HANDLER(on_client_deletecharreq)
108     DECLARE_PACKET_HANDLER(on_client_ladderreq)
109     DECLARE_PACKET_HANDLER(on_client_motdreq)
110     DECLARE_PACKET_HANDLER(on_client_cancelcreategame)
111     DECLARE_PACKET_HANDLER(on_client_charladderreq)
112     DECLARE_PACKET_HANDLER(on_client_charlistreq)
113     DECLARE_PACKET_HANDLER(on_client_charlistreq_110)
114     DECLARE_PACKET_HANDLER(on_client_convertcharreq)
115    
116    
117     static t_packet_handle_table d2cs_packet_handle_table[]={
118     /* 0x00 */ { 0, conn_state_none, NULL },
119     /* 0x01 */ { sizeof(t_client_d2cs_loginreq), conn_state_connected, on_client_loginreq },
120     /* 0x02 */ { sizeof(t_client_d2cs_createcharreq), conn_state_authed|conn_state_char_authed, on_client_createcharreq },
121     /* 0x03 */ { sizeof(t_client_d2cs_creategamereq), conn_state_char_authed, on_client_creategamereq },
122     /* 0x04 */ { sizeof(t_client_d2cs_joingamereq), conn_state_char_authed, on_client_joingamereq },
123     /* 0x05 */ { sizeof(t_client_d2cs_gamelistreq), conn_state_char_authed, on_client_gamelistreq },
124     /* 0x06 */ { sizeof(t_client_d2cs_gameinforeq), conn_state_char_authed, on_client_gameinforeq },
125     /* 0x07 */ { sizeof(t_client_d2cs_charloginreq), conn_state_authed|conn_state_char_authed, on_client_charloginreq },
126     /* 0x08 */ { 0, conn_state_none, NULL },
127     /* 0x09 */ { 0, conn_state_none, NULL },
128     /* 0x0a */ { sizeof(t_client_d2cs_deletecharreq), conn_state_authed|conn_state_char_authed, on_client_deletecharreq },
129     /* 0x0b */ { 0, conn_state_none, NULL },
130     /* 0x0c */ { 0, conn_state_none, NULL },
131     /* 0x0d */ { 0, conn_state_none, NULL },
132     /* 0x0e */ { 0, conn_state_none, NULL },
133     /* 0x0f */ { 0, conn_state_none, NULL },
134     /* 0x10 */ { 0, conn_state_none, NULL },
135     /* 0x11 */ { sizeof(t_client_d2cs_ladderreq), conn_state_char_authed, on_client_ladderreq },
136     /* 0x12 */ { sizeof(t_client_d2cs_motdreq), conn_state_char_authed, on_client_motdreq },
137     /* 0x13 */ { sizeof(t_client_d2cs_cancelcreategame),conn_state_char_authed, on_client_cancelcreategame},
138     /* 0x14 */ { 0, conn_state_none, NULL },
139     /* 0x15 */ { 0, conn_state_none, NULL },
140     /* 0x16 */ { sizeof(t_client_d2cs_charladderreq), conn_state_char_authed, on_client_charladderreq },
141     /* 0x17 */ { sizeof(t_client_d2cs_charlistreq), conn_state_authed|conn_state_char_authed, on_client_charlistreq },
142     /* 0x18 */ { sizeof(t_client_d2cs_convertcharreq), conn_state_authed|conn_state_char_authed, on_client_convertcharreq },
143     /* 0x19 */ { sizeof(t_client_d2cs_charlistreq_110), conn_state_authed|conn_state_char_authed, on_client_charlistreq_110 }
144     };
145    
146    
147     extern int d2cs_handle_d2cs_packet(t_connection * c, t_packet * packet)
148     {
149     return conn_process_packet(c,packet,d2cs_packet_handle_table,NELEMS(d2cs_packet_handle_table));
150     }
151    
152     static int on_client_loginreq(t_connection * c, t_packet * packet)
153     {
154     t_packet * bnpacket;
155     char const * account;
156     t_sq * sq;
157     unsigned int sessionnum;
158    
159     if (!(account=packet_get_str_const(packet,sizeof(t_client_d2cs_loginreq),MAX_CHARNAME_LEN))) {
160     eventlog(eventlog_level_error,__FUNCTION__,"got bad account name");
161     return -1;
162     }
163     if (d2char_check_acctname(account)<0) {
164     eventlog(eventlog_level_error,__FUNCTION__,"got bad account name");
165     return -1;
166     }
167     if (!bnetd_conn()) {
168     eventlog(eventlog_level_warn,__FUNCTION__,"d2cs is offline with bnetd, login request will be rejected");
169     return -1;
170     }
171     sessionnum=bn_int_get(packet->u.client_d2cs_loginreq.sessionnum);
172     conn_set_bnetd_sessionnum(c,sessionnum);
173     eventlog(eventlog_level_info,__FUNCTION__,"got client (*%s) login request sessionnum=0x%X",account,sessionnum);
174     if ((bnpacket=packet_create(packet_class_d2cs_bnetd))) {
175     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,0))) {
176     packet_set_size(bnpacket,sizeof(t_d2cs_bnetd_accountloginreq));
177     packet_set_type(bnpacket,D2CS_BNETD_ACCOUNTLOGINREQ);
178     bn_int_set(&bnpacket->u.d2cs_bnetd_accountloginreq.h.seqno,sq_get_seqno(sq));
179     bn_int_set(&bnpacket->u.d2cs_bnetd_accountloginreq.seqno,
180     bn_int_get(packet->u.client_d2cs_loginreq.seqno));
181     bn_int_set(&bnpacket->u.d2cs_bnetd_accountloginreq.sessionkey,
182     bn_int_get(packet->u.client_d2cs_loginreq.sessionkey));
183     bn_int_set(&bnpacket->u.d2cs_bnetd_accountloginreq.sessionnum,sessionnum);
184     memcpy(bnpacket->u.d2cs_bnetd_accountloginreq.secret_hash,
185     packet->u.client_d2cs_loginreq.secret_hash,
186     sizeof(bnpacket->u.d2cs_bnetd_accountloginreq.secret_hash));
187     packet_append_string(bnpacket,account);
188     conn_push_outqueue(bnetd_conn(),bnpacket);
189     }
190     packet_del_ref(bnpacket);
191     }
192     return 0;
193     }
194    
195     static int on_client_createcharreq(t_connection * c, t_packet * packet)
196     {
197     t_packet * rpacket, * bnpacket;
198     char const * charname;
199     char const * account;
200     char * path;
201     t_pdir * dir;
202     t_sq * sq;
203     unsigned int reply;
204     unsigned short status, class;
205     t_d2charinfo_file data;
206 sysadm 1.2 char checknum;
207 sysadm 1.1 if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_createcharreq),MAX_CHARNAME_LEN))) {
208     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
209     return -1;
210     }
211     if (!(account=d2cs_conn_get_account(c))) {
212     eventlog(eventlog_level_error,__FUNCTION__,"missing account for character %s",charname);
213     return -1;
214     }
215     class=bn_short_get(packet->u.client_d2cs_createcharreq.class);
216     status=bn_short_get(packet->u.client_d2cs_createcharreq.status);
217    
218     path=xmalloc(strlen(prefs_get_charinfo_dir())+1+strlen(account)+1);
219     d2char_get_infodir_name(path,account);
220     if (!(dir=p_opendir(path))) {
221     eventlog(eventlog_level_info,__FUNCTION__,"(*%s) charinfo directory do not exist, building it",account);
222     p_mkdir(path,S_IRWXU);
223     }
224     else
225     p_closedir(dir);
226     xfree(path);
227    
228 sysadm 1.2 /* generate checknum, save it in t_connection, and send it to bnetd, by sowater */
229     do {
230     checknum=d2cs_random_char();
231     }while(d2cs_conn_get_checknum(c)==checknum);
232     d2cs_conn_set_checknum(c,checknum);
233     eventlog(eventlog_level_info,__FUNCTION__,"set checknum %c to connection",checknum);
234    
235 sysadm 1.1 if (d2char_create(account,charname,class,status)<0) {
236     eventlog(eventlog_level_warn,__FUNCTION__,"error create character %s for account %s",charname,account);
237     reply=D2CS_CLIENT_CREATECHARREPLY_ALREADY_EXIST;
238     } else if (d2charinfo_load(account,charname,&data)<0) {
239     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for character %s(*%s)",charname,account);
240     reply=D2CS_CLIENT_CREATECHARREPLY_FAILED;
241     } else {
242     eventlog(eventlog_level_info,__FUNCTION__,"character %s(*%s) created",charname,account);
243     reply=D2CS_CLIENT_CREATECHARREPLY_SUCCEED;
244     conn_set_charinfo(c,&data.summary);
245     if ((bnpacket=packet_create(packet_class_d2cs_bnetd))) {
246     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,0))) {
247     packet_set_size(bnpacket,sizeof(t_d2cs_bnetd_charloginreq));
248     packet_set_type(bnpacket,D2CS_BNETD_CHARLOGINREQ);
249     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.h.seqno,sq_get_seqno(sq));
250     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.sessionnum,
251     conn_get_bnetd_sessionnum(c));
252     packet_append_string(bnpacket,charname);
253     packet_append_string(bnpacket,(char const *)&data.portrait);
254 sysadm 1.2
255     /* sowater */
256     packet_append_data(bnpacket,&checknum,sizeof(checknum));
257    
258 sysadm 1.1 conn_push_outqueue(bnetd_conn(),bnpacket);
259     }
260     packet_del_ref(bnpacket);
261     }
262     return 0;
263     }
264     if ((rpacket=packet_create(packet_class_d2cs))) {
265     packet_set_size(rpacket,sizeof(t_d2cs_client_createcharreply));
266     packet_set_type(rpacket,D2CS_CLIENT_CREATECHARREPLY);
267     bn_int_set(&rpacket->u.d2cs_client_createcharreply.reply,reply);
268     conn_push_outqueue(c,rpacket);
269     packet_del_ref(rpacket);
270     }
271     return 0;
272     }
273    
274     static int on_client_creategamereq(t_connection * c, t_packet * packet)
275     {
276     char const * gamename;
277     char const * gamepass;
278     char const * gamedesc;
279     t_game * game;
280     t_d2gs * gs;
281     t_gq * gq;
282     unsigned int tempflag,gameflag;
283     unsigned int leveldiff, maxchar, difficulty, expansion, hardcore, ladder;
284     unsigned int seqno, reply;
285     unsigned int pos;
286     t_elem * elem;
287 sysadm 1.4 t_charstatus * cs;
288 sysadm 1.1
289 sysadm 1.2
290 sysadm 1.1 pos=sizeof(t_client_d2cs_creategamereq);
291     if (!(gamename=packet_get_str_const(packet,pos,MAX_GAMENAME_LEN))) {
292     eventlog(eventlog_level_error,__FUNCTION__,"got bad game name");
293     return -1;
294     }
295     pos+=strlen(gamename)+1;
296     if (!(gamepass=packet_get_str_const(packet,pos,MAX_GAMEPASS_LEN))) {
297     eventlog(eventlog_level_error,__FUNCTION__,"got bad game pass");
298     return -1;
299     }
300     pos+=strlen(gamepass)+1;
301     if (!(gamedesc=packet_get_str_const(packet,pos,MAX_GAMEDESC_LEN))) {
302     eventlog(eventlog_level_error,__FUNCTION__,"got bad game desc");
303     return -1;
304     }
305 sysadm 1.2
306 sysadm 1.1 tempflag=bn_int_get(packet->u.client_d2cs_creategamereq.gameflag);
307     leveldiff=bn_byte_get(packet->u.client_d2cs_creategamereq.leveldiff);
308     maxchar=bn_byte_get(packet->u.client_d2cs_creategamereq.maxchar);
309     difficulty=gameflag_get_difficulty(tempflag);
310     if (difficulty > conn_get_charinfo_difficulty(c)) {
311     eventlog(eventlog_level_error,__FUNCTION__,"game difficulty exceed character limit %d %d",difficulty,
312     conn_get_charinfo_difficulty(c));
313     return 0;
314     }
315     expansion=conn_get_charinfo_expansion(c);
316     hardcore=conn_get_charinfo_hardcore(c);
317     ladder=conn_get_charinfo_ladder(c);
318     gameflag=gameflag_create(ladder,expansion,hardcore,difficulty);
319    
320     gs = NULL;
321     game = NULL;
322     gq=conn_get_gamequeue(c);
323     if (d2cs_gamelist_find_game(gamename)) {
324     eventlog(eventlog_level_info,__FUNCTION__,"game name %s is already exist in gamelist",gamename);
325     reply=D2CS_CLIENT_CREATEGAMEREPLY_NAME_EXIST;
326 sysadm 1.2
327     /* right checknum? sowater */
328 sysadm 1.3 } else if((prefs_antibot_when_password()==0) && prefs_enable_antibot() && d2cs_conn_verify_checknum(c, *gamedesc)) {
329     eventlog(eventlog_level_info,__FUNCTION__,"checksum %c from packet not match checksum from connection",*gamedesc);
330 sysadm 1.2 reply=D2CS_CLIENT_CREATEGAMEREPLY_FAILED;
331     /* when antibot_when_password is true, by sowater, 20051001 */
332 sysadm 1.3 } else if((strlen(gamepass)!=0) && prefs_antibot_when_password() && prefs_enable_antibot()
333     && d2cs_conn_verify_checknum(c, *gamedesc)) {
334     eventlog(eventlog_level_info,__FUNCTION__,"checksum %c from packet not match checksum from connection",*gamedesc);
335 sysadm 1.2 reply=D2CS_CLIENT_CREATEGAMEREPLY_FAILED;
336 sysadm 1.1 } else if (!gq && gqlist_find_game(gamename)) {
337     eventlog(eventlog_level_info,__FUNCTION__,"game name %s is already exist in game queue",gamename);
338     reply=D2CS_CLIENT_CREATEGAMEREPLY_NAME_EXIST;
339     } else if (!(gs=d2gslist_choose_server(c))) {
340     if (gq) {
341     eventlog(eventlog_level_error,__FUNCTION__,"client %d is already in game queue",d2cs_conn_get_sessionnum(c));
342     conn_set_gamequeue(c,NULL);
343     gq_destroy(gq,&elem);
344     return 0;
345     } else if ((gq=gq_create(d2cs_conn_get_sessionnum(c), packet, gamename))) {
346     conn_set_gamequeue(c,gq);
347     d2cs_send_client_creategamewait(c,gqlist_get_length());
348     return 0;
349     }
350     reply=D2CS_CLIENT_CREATEGAMEREPLY_FAILED;
351     } else if (hardcore && conn_get_charinfo_dead(c)) {
352     reply=D2CS_CLIENT_CREATEGAMEREPLY_FAILED;
353     } else if (!(game=d2cs_game_create(gamename,gamepass,gamedesc,gameflag))) {
354     reply=D2CS_CLIENT_CREATEGAMEREPLY_NAME_EXIST;
355     } else {
356 sysadm 1.4 /* By Leaflet, 20060613 */
357     if ((cs=charstatus_list_find_charstatus_by_charname(c->charname)) == NULL)
358     cs = charstatus_create(c->charname);
359    
360 sysadm 1.5 if (time(NULL) - cs->last_create_time <= prefs_create_game_interval())
361 sysadm 1.4 cs->frequently_create_count++;
362    
363 sysadm 1.5 if (prefs_enable_antibot() && cs->frequently_create_count > prefs_frequently_create_limit()
364     && d2cs_conn_verify_checknum(c, *gamedesc)) {
365 sysadm 1.4 eventlog(eventlog_level_info,__FUNCTION__,"checksum %c from packet not match checksum from connection",*gamedesc);
366     reply=D2CS_CLIENT_CREATEGAMEREPLY_FAILED;
367     } else {
368     if (strlen(gamedesc)!=0 && !d2cs_conn_verify_checknum(c, *gamedesc))
369     cs->frequently_create_count = 0;
370    
371 sysadm 1.5 if (time(NULL) - cs->last_create_time > prefs_create_game_interval())
372 sysadm 1.4 {
373     cs->frequently_create_count--;
374     if (cs->frequently_create_count<0)
375     cs->frequently_create_count=0;
376     }
377     cs->last_create_time = time(NULL);
378    
379     reply=D2CS_CLIENT_CREATEGAMEREPLY_SUCCEED;
380     game_set_d2gs(game,gs);
381     d2gs_add_gamenum(gs, 1);
382     game_set_gameflag_ladder(game,ladder);
383     game_set_gameflag_expansion(game,expansion);
384     game_set_created(game,0);
385     game_set_leveldiff(game,leveldiff);
386     game_set_charlevel(game,conn_get_charinfo_level(c));
387     game_set_maxchar(game,maxchar);
388     game_set_gameflag_difficulty(game,difficulty);
389     game_set_gameflag_hardcore(game,hardcore);
390     }
391 sysadm 1.1 }
392    
393     seqno=bn_short_get(packet->u.client_d2cs_creategamereq.seqno);
394     if (reply!=D2CS_CLIENT_CREATEGAMEREPLY_SUCCEED) {
395     t_packet * rpacket;
396    
397     if ((rpacket=packet_create(packet_class_d2cs))) {
398     packet_set_size(rpacket,sizeof(t_d2cs_client_creategamereply));
399     packet_set_type(rpacket,D2CS_CLIENT_CREATEGAMEREPLY);
400     bn_short_set(&rpacket->u.d2cs_client_creategamereply.seqno,seqno);
401     bn_short_set(&rpacket->u.d2cs_client_creategamereply.u1,0);
402     bn_short_set(&rpacket->u.d2cs_client_creategamereply.gameid,0);
403     bn_int_set(&rpacket->u.d2cs_client_creategamereply.reply,reply);
404     conn_push_outqueue(c,rpacket);
405     packet_del_ref(rpacket);
406     }
407     } else {
408     t_packet * gspacket;
409     t_sq * sq;
410     struct in_addr addr;
411    
412     if ((gspacket=packet_create(packet_class_d2gs))) {
413     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,d2cs_game_get_id(game)))) {
414     packet_set_size(gspacket,sizeof(t_d2cs_d2gs_creategamereq));
415     packet_set_type(gspacket,D2CS_D2GS_CREATEGAMEREQ);
416     bn_int_set(&gspacket->u.d2cs_d2gs_creategamereq.h.seqno,sq_get_seqno(sq));
417     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.difficulty,difficulty);
418     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.hardcore,hardcore);
419     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.expansion,expansion);
420     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.ladder,ladder);
421     packet_append_string(gspacket,gamename);
422     packet_append_string(gspacket,gamepass);
423     packet_append_string(gspacket,gamedesc);
424     packet_append_string(gspacket,d2cs_conn_get_account(c));
425     packet_append_string(gspacket,d2cs_conn_get_charname(c));
426     addr.s_addr = htonl(d2cs_conn_get_addr(c));
427     packet_append_string(gspacket,inet_ntoa(addr));
428     conn_push_outqueue(d2gs_get_connection(gs),gspacket);
429     }
430     packet_del_ref(gspacket);
431     eventlog(eventlog_level_info,__FUNCTION__,"request create game %s on gs %d",gamename,d2gs_get_id(gs));
432     }
433     }
434     return 0;
435     }
436    
437     static int on_client_joingamereq(t_connection * c, t_packet * packet)
438     {
439     char const * gamename;
440     char const * gamepass;
441     char const * charname;
442     char const * account;
443     t_game * game;
444     t_d2gs * gs;
445     int reply;
446     unsigned int pos;
447     unsigned int seqno;
448    
449     gs = NULL;
450     pos=sizeof(t_client_d2cs_joingamereq);
451     if (!(gamename=packet_get_str_const(packet,pos,MAX_GAMENAME_LEN))) {
452     eventlog(eventlog_level_error,__FUNCTION__,"got bad game name");
453     return -1;
454     }
455     pos+=strlen(gamename)+1;
456     if (!(gamepass=packet_get_str_const(packet,pos,MAX_GAMEPASS_LEN))) {
457     eventlog(eventlog_level_error,__FUNCTION__,"got bad game pass");
458     return -1;
459     }
460     if (!(charname=d2cs_conn_get_charname(c))) {
461     eventlog(eventlog_level_error,__FUNCTION__,"missing character name for connection");
462     return -1;
463     }
464     if (!(account=d2cs_conn_get_account(c))) {
465     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
466     return -1;
467     }
468     if (conn_check_multilogin(c,charname)<0) {
469     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
470     return -1;
471     }
472     if (!(game=d2cs_gamelist_find_game(gamename))) {
473     eventlog(eventlog_level_info,__FUNCTION__,"game %s not found",gamename);
474     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
475     } else if (!(gs=game_get_d2gs(game))) {
476     eventlog(eventlog_level_error,__FUNCTION__,"missing game server for game %s",gamename);
477     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
478     } else {
479     reply=d2cs_try_joingame(c,game,gamepass);
480     }
481    
482     seqno=bn_short_get(packet->u.client_d2cs_joingamereq.seqno);
483     if (reply!=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED) {
484     t_packet * rpacket;
485    
486     if ((rpacket=packet_create(packet_class_d2cs))) {
487     packet_set_size(rpacket,sizeof(t_d2cs_client_joingamereply));
488     packet_set_type(rpacket,D2CS_CLIENT_JOINGAMEREPLY);
489     bn_short_set(&rpacket->u.d2cs_client_joingamereply.seqno,seqno);
490     bn_short_set(&rpacket->u.d2cs_client_joingamereply.u1,0);
491     bn_short_set(&rpacket->u.d2cs_client_joingamereply.gameid,0);
492     bn_int_set(&rpacket->u.d2cs_client_joingamereply.addr,0);
493     bn_int_set(&rpacket->u.d2cs_client_joingamereply.token,0);
494     bn_int_set(&rpacket->u.d2cs_client_joingamereply.reply,reply);
495     conn_push_outqueue(c,rpacket);
496     packet_del_ref(rpacket);
497     }
498     } else {
499     t_packet * gspacket;
500     t_sq * sq;
501     struct in_addr addr;
502    
503     if ((gspacket=packet_create(packet_class_d2gs))) {
504     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,d2cs_game_get_id(game)))) {
505     packet_set_size(gspacket,sizeof(t_d2cs_d2gs_joingamereq));
506     packet_set_type(gspacket,D2CS_D2GS_JOINGAMEREQ);
507     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.h.seqno,sq_get_seqno(sq));
508     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.gameid,
509     game_get_d2gs_gameid(game));
510     sq_set_gametoken(sq,d2gs_make_token(gs));
511     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.token,sq_get_gametoken(sq));
512     packet_append_string(gspacket,charname);
513     packet_append_string(gspacket,account);
514     addr.s_addr = htonl(d2cs_conn_get_addr(c));
515     packet_append_string(gspacket,inet_ntoa(addr));
516     conn_push_outqueue(d2gs_get_connection(gs),gspacket);
517     }
518     packet_del_ref(gspacket);
519     eventlog(eventlog_level_info,__FUNCTION__,"request join game %s for character %s on gs %d",gamename,
520     charname,d2gs_get_id(gs));
521     }
522     }
523     return 0;
524     }
525    
526     static int on_client_gamelistreq(t_connection * c, t_packet * packet)
527     {
528     t_packet * rpacket;
529     t_game * game;
530     unsigned int count;
531     unsigned int seqno;
532     time_t now;
533     unsigned int maxlifetime;
534     t_elem const * start_elem;
535     t_elem const * elem;
536    
537     seqno=bn_short_get(packet->u.client_d2cs_gamelistreq.seqno);
538     /* if (seqno%2) return 0; */
539     count=0;
540     now=time(NULL);
541     maxlifetime=prefs_get_game_maxlifetime();
542    
543     elem=start_elem=gamelist_get_curr_elem();
544     if (!elem) elem=list_get_first_const(d2cs_gamelist());
545     else elem=elem_get_next_const(d2cs_gamelist(),elem);
546    
547     for (; elem != start_elem; elem=elem_get_next_const(d2cs_gamelist(),elem)) {
548     if (!elem) {
549     elem=list_get_first_const(d2cs_gamelist());
550     if (elem == start_elem) break;
551     }
552     if (!(game=elem_get_data(elem))) {
553     eventlog(eventlog_level_error,__FUNCTION__,"got NULL game");
554     break;
555     }
556     if (maxlifetime && (now-game->create_time>maxlifetime)) continue;
557     if (!game_get_currchar(game)) continue;
558     if (!prefs_allow_gamelist_showall()) {
559     if (conn_get_charinfo_difficulty(c)!=game_get_gameflag_difficulty(game)) continue;
560     }
561     if (d2cs_try_joingame(c,game,"")!=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED) continue;
562     if ((rpacket=packet_create(packet_class_d2cs))) {
563     packet_set_size(rpacket,sizeof(t_d2cs_client_gamelistreply));
564     packet_set_type(rpacket,D2CS_CLIENT_GAMELISTREPLY);
565     bn_short_set(&rpacket->u.d2cs_client_gamelistreply.seqno,seqno);
566     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.token,d2cs_game_get_id(game));
567     bn_byte_set(&rpacket->u.d2cs_client_gamelistreply.currchar,game_get_currchar(game));
568     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.gameflag,game_get_gameflag(game));
569     packet_append_string(rpacket,d2cs_game_get_name(game));
570     packet_append_string(rpacket,game_get_desc(game));
571     conn_push_outqueue(c,rpacket);
572     packet_del_ref(rpacket);
573     count++;
574     if (prefs_get_maxgamelist() && count>=prefs_get_maxgamelist()) break;
575     }
576     }
577     gamelist_set_curr_elem(elem);
578     if (count) {
579     if ((rpacket=packet_create(packet_class_d2cs))) {
580     packet_set_size(rpacket,sizeof(t_d2cs_client_gamelistreply));
581     packet_set_type(rpacket,D2CS_CLIENT_GAMELISTREPLY);
582     bn_short_set(&rpacket->u.d2cs_client_gamelistreply.seqno,seqno);
583     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.token,0);
584     bn_byte_set(&rpacket->u.d2cs_client_gamelistreply.currchar,0);
585     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.gameflag,0);
586     packet_append_string(rpacket,"");
587     packet_append_string(rpacket,"");
588     packet_append_string(rpacket,"");
589     conn_push_outqueue(c,rpacket);
590     packet_del_ref(rpacket);
591     }
592     }
593     return 0;
594     }
595    
596     static int on_client_gameinforeq(t_connection * c, t_packet * packet)
597     {
598     t_game_charinfo * info;
599     t_packet * rpacket;
600     char const * gamename;
601     t_game * game;
602     unsigned int seqno, n;
603    
604     if (!(gamename=packet_get_str_const(packet,sizeof(t_client_d2cs_gameinforeq),MAX_GAMENAME_LEN))) {
605     eventlog(eventlog_level_error,__FUNCTION__,"got bad game name");
606     return -1;
607     }
608     if (!(game=d2cs_gamelist_find_game(gamename))) {
609     eventlog(eventlog_level_error,__FUNCTION__,"game %s not found",gamename);
610     return 0;
611     }
612     seqno=bn_short_get(packet->u.client_d2cs_gameinforeq.seqno);
613     if ((rpacket=packet_create(packet_class_d2cs))) {
614     packet_set_size(rpacket,sizeof(t_d2cs_client_gameinforeply));
615     packet_set_type(rpacket,D2CS_CLIENT_GAMEINFOREPLY);
616     bn_short_set(&rpacket->u.d2cs_client_gameinforeply.seqno,seqno);
617     bn_int_set(&rpacket->u.d2cs_client_gameinforeply.gameflag,game_get_gameflag(game));
618     bn_int_set(&rpacket->u.d2cs_client_gameinforeply.etime,time(NULL)-d2cs_game_get_create_time(game));
619     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.charlevel,game_get_charlevel(game));
620     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.leveldiff,game_get_leveldiff(game));
621     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.maxchar,game_get_maxchar(game));
622     packet_append_string(rpacket, game_get_desc(game) ? game_get_desc(game) : NULL);
623    
624     n=0;
625     BEGIN_LIST_TRAVERSE_DATA_CONST(game_get_charlist(game),info)
626     {
627     if (!info->charname) {
628     eventlog(eventlog_level_error,__FUNCTION__,"got NULL charname in game %s char list",gamename);
629     continue;
630     }
631     packet_append_string(rpacket,info->charname);
632     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.class[n],info->class);
633     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.level[n],info->level);
634     n++;
635     }
636     END_LIST_TRAVERSE_DATA_CONST()
637    
638     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.currchar,n);
639     if (n!=game_get_currchar(game)) {
640     eventlog(eventlog_level_error,__FUNCTION__,"game %s character list corrupted",gamename);
641     }
642     conn_push_outqueue(c,rpacket);
643     packet_del_ref(rpacket);
644     }
645     return 0;
646     }
647    
648     static int on_client_charloginreq(t_connection * c, t_packet * packet)
649     {
650     t_packet * bnpacket;
651     char const * charname;
652     char const * account;
653     t_sq * sq;
654     t_d2charinfo_file data;
655     unsigned int expire_time;
656 sysadm 1.2 char checknum;
657 sysadm 1.1
658     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_charloginreq),MAX_CHARNAME_LEN))) {
659     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
660     return -1;
661     }
662     if (!(account=d2cs_conn_get_account(c))) {
663     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
664     return -1;
665     }
666     if (d2charinfo_load(account,charname,&data)<0) {
667     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for character %s(*%s)",charname,account);
668     return -1;
669     } else if (!bnetd_conn()) {
670     eventlog(eventlog_level_error,__FUNCTION__,"no bnetd connection available,character login rejected");
671     return -1;
672     }
673     expire_time = prefs_get_char_expire_time();
674     if (expire_time && (time(NULL) > bn_int_get(data.header.last_time) + expire_time)) {
675     t_packet * rpacket;
676    
677     if ((rpacket=packet_create(packet_class_d2cs))) {
678     packet_set_size(rpacket,sizeof(t_d2cs_client_charloginreply));
679     packet_set_type(rpacket,D2CS_CLIENT_CHARLOGINREPLY);
680     bn_int_set(&rpacket->u.d2cs_client_charloginreply.reply, D2CS_CLIENT_CHARLOGINREPLY_EXPIRED);
681     conn_push_outqueue(c,rpacket);
682     packet_del_ref(rpacket);
683     }
684     eventlog(eventlog_level_info,__FUNCTION__,"character %s(*%s) login rejected due to char expired",charname,account);
685     return 0;
686     }
687    
688     conn_set_charinfo(c,&data.summary);
689     eventlog(eventlog_level_info,__FUNCTION__,"got character %s(*%s) login request",charname,account);
690 sysadm 1.2
691     /* generate checknum, save it in t_connection, and send it to bnetd, by sowater */
692     do {
693     checknum=d2cs_random_char();
694     }while(d2cs_conn_get_checknum(c)==checknum);
695     d2cs_conn_set_checknum(c,checknum);
696     eventlog(eventlog_level_info,__FUNCTION__,"set checknum %c to connection",checknum);
697    
698 sysadm 1.1 if ((bnpacket=packet_create(packet_class_d2cs_bnetd))) {
699     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,0))) {
700     packet_set_size(bnpacket,sizeof(t_d2cs_bnetd_charloginreq));
701     packet_set_type(bnpacket,D2CS_BNETD_CHARLOGINREQ);
702     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.h.seqno,sq_get_seqno(sq));
703     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.sessionnum,
704     conn_get_bnetd_sessionnum(c));
705     packet_append_string(bnpacket,charname);
706     packet_append_string(bnpacket,(char const *)&data.portrait);
707 sysadm 1.2
708     /*sowater */
709     packet_append_data(bnpacket,&checknum,sizeof(checknum));
710    
711 sysadm 1.1 conn_push_outqueue(bnetd_conn(),bnpacket);
712     }
713     packet_del_ref(bnpacket);
714     }
715     return 0;
716     }
717    
718     static int on_client_deletecharreq(t_connection * c, t_packet * packet)
719     {
720     t_packet * rpacket;
721     char const * charname;
722     char const * account;
723     unsigned int reply;
724    
725     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_deletecharreq),MAX_CHARNAME_LEN))) {
726     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
727     return -1;
728     }
729     if (conn_check_multilogin(c,charname)<0) {
730     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
731     return -1;
732     }
733     d2cs_conn_set_charname(c,NULL);
734     account=d2cs_conn_get_account(c);
735     if (d2char_delete(account,charname)<0) {
736     eventlog(eventlog_level_error,__FUNCTION__,"failed to delete character %s(*%s)",charname,account);
737     reply = D2CS_CLIENT_DELETECHARREPLY_FAILED;
738     } else {
739     reply = D2CS_CLIENT_DELETECHARREPLY_SUCCEED;
740     }
741     if ((rpacket=packet_create(packet_class_d2cs))) {
742     packet_set_size(rpacket,sizeof(t_d2cs_client_deletecharreply));
743     packet_set_type(rpacket,D2CS_CLIENT_DELETECHARREPLY);
744     bn_short_set(&rpacket->u.d2cs_client_deletecharreply.u1,0);
745     bn_int_set(&rpacket->u.d2cs_client_deletecharreply.reply,reply);
746     conn_push_outqueue(c,rpacket);
747     packet_del_ref(rpacket);
748     }
749     return 0;
750     }
751    
752     static int on_client_ladderreq(t_connection * c, t_packet * packet)
753     {
754     unsigned char type;
755     unsigned short start_pos;
756    
757     type=bn_byte_get(packet->u.client_d2cs_ladderreq.type);
758     start_pos=bn_short_get(packet->u.client_d2cs_ladderreq.start_pos);
759     d2cs_send_client_ladder(c,type,start_pos);
760     return 0;
761     }
762    
763     static int d2cs_send_client_ladder(t_connection * c, unsigned char type, unsigned short from)
764     {
765     t_packet * rpacket;
766     t_d2cs_client_ladderinfo const * ladderinfo;
767     unsigned int curr_len, cont_len, total_len;
768     t_d2cs_client_ladderheader ladderheader;
769     t_d2cs_client_ladderinfoheader infoheader;
770     unsigned int start_pos, count, count_per_packet, npacket;
771     unsigned int i, n, curr_pos;
772    
773     start_pos=from;
774     count=prefs_get_ladderlist_count();
775     if (d2ladder_get_ladder(&start_pos,&count,type,&ladderinfo)<0) {
776     eventlog(eventlog_level_error,__FUNCTION__,"error get ladder for type %d start_pos %d",type,from);
777     return 0;
778     }
779    
780     count_per_packet=14;
781     npacket=count/count_per_packet;
782     if (count % count_per_packet) npacket++;
783    
784     curr_len=0;
785     cont_len=0;
786     total_len = count * sizeof(*ladderinfo) + sizeof(ladderheader) + sizeof(infoheader) * npacket;
787     total_len -= 4;
788     bn_short_set(&ladderheader.start_pos,start_pos);
789     bn_short_set(&ladderheader.u1,0);
790     bn_int_set(&ladderheader.count1,count);
791    
792     for (i=0; i< npacket; i++) {
793     curr_len=0;
794     if ((rpacket=packet_create(packet_class_d2cs))) {
795     packet_set_size(rpacket,sizeof(t_d2cs_client_ladderreply));
796     packet_set_type(rpacket,D2CS_CLIENT_LADDERREPLY);
797     bn_byte_set(&rpacket->u.d2cs_client_ladderreply.type, type);
798     bn_short_set(&rpacket->u.d2cs_client_ladderreply.total_len, total_len);
799     bn_short_set(&rpacket->u.d2cs_client_ladderreply.cont_len,cont_len);
800     if (i==0) {
801     bn_int_set(&infoheader.count2,count);
802     packet_append_data(rpacket,&ladderheader,sizeof(ladderheader));
803     curr_len += sizeof(ladderheader);
804     } else {
805     bn_int_set(&infoheader.count2,0);
806     }
807     packet_append_data(rpacket,&infoheader,sizeof(infoheader));
808     curr_len += sizeof(infoheader);
809     for (n=0; n< count_per_packet; n++) {
810     curr_pos = n + i * count_per_packet;
811     if (curr_pos >= count) break;
812     packet_append_data(rpacket, ladderinfo+curr_pos, sizeof(*ladderinfo));
813     curr_len += sizeof(*ladderinfo);
814     }
815     if (i==0) {
816     packet_set_size(rpacket, packet_get_size(rpacket)-4);
817     curr_len -= 4;
818     }
819     bn_short_set(&rpacket->u.d2cs_client_ladderreply.curr_len,curr_len);
820     conn_push_outqueue(c,rpacket);
821     packet_del_ref(rpacket);
822     }
823     cont_len += curr_len;
824     }
825     return 0;
826     }
827    
828     static int on_client_motdreq(t_connection * c, t_packet * packet)
829     {
830     t_packet * rpacket;
831    
832     if (!packet)
833     return -1;
834    
835     if ((rpacket=packet_create(packet_class_d2cs))) {
836     packet_set_size(rpacket,sizeof(t_d2cs_client_motdreply));
837     packet_set_type(rpacket,D2CS_CLIENT_MOTDREPLY);
838     bn_byte_set(&rpacket->u.d2cs_client_motdreply.u1,0);
839     packet_append_string(rpacket,prefs_get_motd());
840     conn_push_outqueue(c,rpacket);
841     packet_del_ref(rpacket);
842     }
843     return 0;
844     }
845    
846     static int on_client_cancelcreategame(t_connection * c, t_packet * packet)
847     {
848     t_gq * gq;
849     t_elem * elem;
850    
851     if (!packet)
852     return -1;
853    
854     if (!(gq=conn_get_gamequeue(c))) {
855     return 0;
856     }
857     conn_set_gamequeue(c,NULL);
858     gq_destroy(gq,&elem);
859     return 0;
860     }
861    
862     static int on_client_charladderreq(t_connection * c, t_packet * packet)
863     {
864     t_packet * rpacket;
865     char const * charname;
866     unsigned int expansion, hardcore, type;
867     int pos;
868    
869     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_charladderreq),MAX_CHARNAME_LEN))) {
870     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
871     return -1;
872     }
873     expansion=bn_int_get(packet->u.client_d2cs_charladderreq.expansion);
874     hardcore=bn_int_get(packet->u.client_d2cs_charladderreq.hardcore);
875     type=0; /* avoid warning */
876     if (hardcore && expansion) {
877     type=D2LADDER_EXP_HC_OVERALL;
878     } else if (!hardcore && expansion) {
879     type=D2LADDER_EXP_STD_OVERALL;
880     } else if (hardcore && !expansion) {
881     type=D2LADDER_HC_OVERALL;
882     } else if (!hardcore && !expansion) {
883     type=D2LADDER_STD_OVERALL;
884     }
885     if ((pos=d2ladder_find_character_pos(type,charname))<0) {
886     if ((rpacket=packet_create(packet_class_d2cs))) {
887     packet_set_size(rpacket,sizeof(t_d2cs_client_ladderreply));
888     packet_set_type(rpacket,D2CS_CLIENT_LADDERREPLY);
889     bn_byte_set(&rpacket->u.d2cs_client_ladderreply.type, type);
890     bn_short_set(&rpacket->u.d2cs_client_ladderreply.total_len,0);
891     bn_short_set(&rpacket->u.d2cs_client_ladderreply.curr_len,0);
892     bn_short_set(&rpacket->u.d2cs_client_ladderreply.cont_len,0);
893     conn_push_outqueue(c,rpacket);
894     packet_del_ref(rpacket);
895     }
896     return 0;
897     }
898     pos -= prefs_get_ladderlist_count()/2;
899     if (pos < 0) pos=0;
900     d2cs_send_client_ladder(c,type,pos);
901     return 0;
902     }
903    
904     static int on_client_charlistreq(t_connection * c, t_packet * packet)
905     {
906     t_packet * rpacket;
907     t_pdir * dir;
908     char const * account;
909     char const * charname;
910     char * path;
911     t_d2charinfo_file * charinfo;
912     unsigned int n, maxchar;
913     t_elist charlist_head;
914     char const * charlist_sort_order;
915    
916     if (!packet)
917     return -1;
918    
919     if (!(account=d2cs_conn_get_account(c))) {
920     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
921     return -1;
922     }
923     path=xmalloc(strlen(prefs_get_charinfo_dir())+1+strlen(account)+1);
924     charlist_sort_order = prefs_get_charlist_sort_order();
925    
926     elist_init(&charlist_head);
927    
928     d2char_get_infodir_name(path,account);
929     maxchar=prefs_get_maxchar();
930     if ((rpacket=packet_create(packet_class_d2cs))) {
931     packet_set_size(rpacket,sizeof(t_d2cs_client_charlistreply));
932     packet_set_type(rpacket,D2CS_CLIENT_CHARLISTREPLY);
933     bn_short_set(&rpacket->u.d2cs_client_charlistreply.u1,0);
934     n=0;
935     if (!(dir=p_opendir(path))) {
936     eventlog(eventlog_level_info,__FUNCTION__,"(*%s) charinfo directory do not exist, building it",account);
937     p_mkdir(path,S_IRWXU);
938     } else {
939     while ((charname=p_readdir(dir))) {
940     if (charname[0]=='.') continue;
941     charinfo = xmalloc(sizeof(t_d2charinfo_file));
942     if (d2charinfo_load(account,charname,charinfo)<0) {
943     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for %s(*%s)",charname,account);
944     xfree((void *)charinfo);
945     continue;
946     }
947     eventlog(eventlog_level_debug,__FUNCTION__,"adding char %s (*%s)", charname, account);
948     d2charlist_add_char(&charlist_head,charinfo,0);
949     n++;
950     if (n>=maxchar) break;
951     }
952     if (prefs_allow_newchar() && (n<maxchar)) {
953     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,maxchar);
954     } else {
955     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,0);
956     }
957     p_closedir(dir);
958     if (!strcmp(charlist_sort_order, "ASC"))
959     {
960     t_elist * curr, * safe;
961     t_d2charlist * ccharlist;
962    
963     elist_for_each_safe(curr,&charlist_head,safe)
964     {
965     ccharlist = elist_entry(curr,t_d2charlist,list);
966     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
967     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
968     xfree((void *)ccharlist->charinfo);
969     xfree((void *)ccharlist);
970     }
971     }
972     else
973     {
974     t_elist * curr, * safe;
975     t_d2charlist * ccharlist;
976    
977     elist_for_each_safe_rev(curr,&charlist_head,safe)
978     {
979     ccharlist = elist_entry(curr,t_d2charlist,list);
980     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
981     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
982     xfree((void *)ccharlist->charinfo);
983     xfree((void *)ccharlist);
984    
985     }
986     }
987     }
988     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar,n);
989     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar2,n);
990     conn_push_outqueue(c,rpacket);
991     packet_del_ref(rpacket);
992     }
993     xfree(path);
994     return 0;
995     }
996    
997     static int on_client_charlistreq_110(t_connection * c, t_packet * packet)
998     {
999     t_packet * rpacket;
1000     t_pdir * dir;
1001     char const * account;
1002     char const * charname;
1003     char * path;
1004    
1005     t_d2charinfo_file * charinfo;
1006     unsigned int n, maxchar;
1007     t_elist charlist_head;
1008    
1009     unsigned int exp_time;
1010     unsigned int curr_exp_time;
1011     char const * charlist_sort_order;
1012    
1013     if (!packet)
1014     return -1;
1015    
1016     if (!(account=d2cs_conn_get_account(c))) {
1017     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
1018     return -1;
1019     }
1020     path=xmalloc(strlen(prefs_get_charinfo_dir())+1+strlen(account)+1);
1021     charlist_sort_order = prefs_get_charlist_sort_order();
1022    
1023     elist_init(&charlist_head);
1024    
1025     d2char_get_infodir_name(path,account);
1026     if (prefs_allow_newchar())
1027     maxchar=prefs_get_maxchar();
1028     else
1029     maxchar=0;
1030    
1031     if ((rpacket=packet_create(packet_class_d2cs))) {
1032     packet_set_size(rpacket,sizeof(t_d2cs_client_charlistreply_110));
1033     packet_set_type(rpacket,D2CS_CLIENT_CHARLISTREPLY_110);
1034     bn_short_set(&rpacket->u.d2cs_client_charlistreply_110.u1,0);
1035     n=0;
1036     if (!(dir=p_opendir(path))) {
1037     eventlog(eventlog_level_info,__FUNCTION__,"(*%s) charinfo directory do not exist, building it",account);
1038     p_mkdir(path,S_IRWXU);
1039     } else {
1040     exp_time = prefs_get_char_expire_time();
1041     while ((charname=p_readdir(dir))) {
1042     if (charname[0]=='.') continue;
1043     charinfo = xmalloc(sizeof(t_d2charinfo_file));
1044     if (d2charinfo_load(account,charname,charinfo)<0) {
1045     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for %s(*%s)",charname,account);
1046     xfree(charinfo);
1047     continue;
1048     }
1049     if (exp_time) {
1050     curr_exp_time = bn_int_get(charinfo->header.last_time)+exp_time;
1051     } else {
1052     curr_exp_time = 0x7FFFFFFF;
1053     }
1054     eventlog(eventlog_level_debug,__FUNCTION__,"adding char %s (*%s)", charname, account);
1055     d2charlist_add_char(&charlist_head,charinfo,curr_exp_time);
1056     n++;
1057     if (n>=maxchar) break;
1058     }
1059     if (n>=maxchar)
1060     maxchar = 0;
1061    
1062     p_closedir(dir);
1063     if (!strcmp(charlist_sort_order, "ASC"))
1064     {
1065     t_elist * curr, *safe;
1066     t_d2charlist * ccharlist;
1067    
1068     elist_for_each_safe(curr,&charlist_head,safe)
1069     {
1070     bn_int bn_exp_time;
1071    
1072     ccharlist = elist_entry(curr,t_d2charlist,list);
1073     bn_int_set(&bn_exp_time,ccharlist->expiration_time);
1074     packet_append_data(rpacket,bn_exp_time,sizeof(bn_exp_time));
1075     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
1076     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
1077     xfree((void *)ccharlist->charinfo);
1078     xfree((void *)ccharlist);
1079     }
1080     }
1081     else
1082     {
1083     t_elist * curr, *safe;
1084     t_d2charlist * ccharlist;
1085    
1086     elist_for_each_safe_rev(curr,&charlist_head,safe)
1087     {
1088     bn_int bn_exp_time;
1089    
1090     ccharlist = elist_entry(curr,t_d2charlist,list);
1091     bn_int_set(&bn_exp_time,ccharlist->expiration_time);
1092     packet_append_data(rpacket,bn_exp_time,sizeof(bn_exp_time));
1093     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
1094     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
1095     xfree((void *)ccharlist->charinfo);
1096     xfree((void *)ccharlist);
1097     }
1098     }
1099     }
1100     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar,n);
1101     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar2,n);
1102     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,maxchar);
1103    
1104     conn_push_outqueue(c,rpacket);
1105     packet_del_ref(rpacket);
1106     }
1107     xfree(path);
1108     return 0;
1109     }
1110    
1111     static int on_client_convertcharreq(t_connection * c, t_packet * packet)
1112     {
1113     t_packet * rpacket;
1114     char const * charname;
1115     char const * account;
1116     unsigned int reply;
1117    
1118     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_convertcharreq),MAX_CHARNAME_LEN))) {
1119     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
1120     return -1;
1121     }
1122     if (conn_check_multilogin(c,charname)<0) {
1123     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
1124     return -1;
1125     }
1126     account=d2cs_conn_get_account(c);
1127     if (d2char_convert(account,charname)<0) {
1128     eventlog(eventlog_level_error,__FUNCTION__,"failed to convert character %s(*%s)",charname,account);
1129     reply = D2CS_CLIENT_CONVERTCHARREPLY_FAILED;
1130     } else {
1131     reply = D2CS_CLIENT_CONVERTCHARREPLY_SUCCEED;
1132     }
1133     if ((rpacket=packet_create(packet_class_d2cs))) {
1134     packet_set_size(rpacket,sizeof(t_d2cs_client_convertcharreply));
1135     packet_set_type(rpacket,D2CS_CLIENT_CONVERTCHARREPLY);
1136     bn_int_set(&rpacket->u.d2cs_client_convertcharreply.reply,reply);
1137     conn_push_outqueue(c,rpacket);
1138     packet_del_ref(rpacket);
1139     }
1140     return 0;
1141     }
1142    
1143     extern int d2cs_send_client_creategamewait(t_connection * c, unsigned int position)
1144     {
1145     t_packet * packet;
1146    
1147     ASSERT(c,-1);
1148     if ((packet=packet_create(packet_class_d2cs))) {
1149     packet_set_size(packet,sizeof(t_d2cs_client_creategamewait));
1150     packet_set_type(packet,D2CS_CLIENT_CREATEGAMEWAIT);
1151     bn_int_set(&packet->u.d2cs_client_creategamewait.position,position);
1152     conn_push_outqueue(c,packet);
1153     packet_del_ref(packet);
1154     }
1155     return 0;
1156     }
1157    
1158     extern int d2cs_handle_client_creategame(t_connection * c, t_packet * packet)
1159     {
1160     return on_client_creategamereq(c,packet);
1161     }
1162    
1163     static unsigned int d2cs_try_joingame(t_connection const * c, t_game const * game, char const * gamepass)
1164     {
1165     unsigned int reply;
1166    
1167     ASSERT(c,D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST);
1168     ASSERT(game,D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST);
1169     if (!game_get_created(game)) {
1170     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
1171     } else if (!game_get_d2gs(game)) {
1172     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
1173     } else if (conn_get_charinfo_ladder(c) != game_get_gameflag_ladder(game)) {
1174     reply=D2CS_CLIENT_JOINGAMEREPLY_NORMAL_LADDER;
1175     } else if (conn_get_charinfo_expansion(c) != game_get_gameflag_expansion(game)) {
1176     reply=D2CS_CLIENT_JOINGAMEREPLY_CLASSIC_EXPANSION;
1177     } else if (conn_get_charinfo_hardcore(c) != game_get_gameflag_hardcore(game)) {
1178     reply=D2CS_CLIENT_JOINGAMEREPLY_HARDCORE_SOFTCORE;
1179     } else if (conn_get_charinfo_difficulty(c) < game_get_gameflag_difficulty(game)) {
1180     reply=D2CS_CLIENT_JOINGAMEREPLY_NORMAL_NIGHTMARE;
1181     } else if (prefs_allow_gamelimit()) {
1182     if (game_get_maxchar(game) <= game_get_currchar(game)) {
1183     reply=D2CS_CLIENT_JOINGAMEREPLY_GAME_FULL;
1184     } else if (conn_get_charinfo_level(c) > game_get_maxlevel(game)) {
1185     reply=D2CS_CLIENT_JOINGAMEREPLY_LEVEL_LIMIT;
1186     } else if (conn_get_charinfo_level(c) < game_get_minlevel(game)) {
1187     reply=D2CS_CLIENT_JOINGAMEREPLY_LEVEL_LIMIT;
1188     } else if (strcmp(d2cs_game_get_pass(game),gamepass)) {
1189     reply=D2CS_CLIENT_JOINGAMEREPLY_BAD_PASS;
1190     } else {
1191     reply=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED;
1192     }
1193     } else {
1194     if (game_get_currchar(game) >= MAX_CHAR_PER_GAME) {
1195     reply=D2CS_CLIENT_JOINGAMEREPLY_GAME_FULL;
1196     } else {
1197     reply=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED;
1198     }
1199     }
1200     return reply;
1201     }

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