/[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 1.8 - (hide annotations)
Sat Jun 24 09:19:48 2006 UTC (19 years, 8 months ago) by sysadm
Branch: MAIN
CVS Tags: pvpgn_1-7-4-0_MIL
Changes since 1.7: +1 -1 lines
Content type: text/x-csrc
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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 1.8 } else if((strlen(gamepass)!=0 || maxchar==1 || leveldiff<30) && prefs_antibot_when_password() && prefs_enable_antibot()
333 sysadm 1.3 && 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 sysadm 1.6 if (strlen(gamedesc)!=0) {
369     if (!d2cs_conn_verify_checknum(c, *gamedesc))
370     cs->frequently_create_count = 0;
371     else
372     eventlog(eventlog_level_info,__FUNCTION__,"checksum %c from packet not match checksum from connection",
373     *gamedesc);
374     }
375 sysadm 1.4
376 sysadm 1.5 if (time(NULL) - cs->last_create_time > prefs_create_game_interval())
377 sysadm 1.4 {
378     cs->frequently_create_count--;
379     if (cs->frequently_create_count<0)
380     cs->frequently_create_count=0;
381     }
382     cs->last_create_time = time(NULL);
383    
384     reply=D2CS_CLIENT_CREATEGAMEREPLY_SUCCEED;
385     game_set_d2gs(game,gs);
386     d2gs_add_gamenum(gs, 1);
387     game_set_gameflag_ladder(game,ladder);
388     game_set_gameflag_expansion(game,expansion);
389     game_set_created(game,0);
390     game_set_leveldiff(game,leveldiff);
391     game_set_charlevel(game,conn_get_charinfo_level(c));
392     game_set_maxchar(game,maxchar);
393     game_set_gameflag_difficulty(game,difficulty);
394     game_set_gameflag_hardcore(game,hardcore);
395     }
396 sysadm 1.1 }
397    
398     seqno=bn_short_get(packet->u.client_d2cs_creategamereq.seqno);
399     if (reply!=D2CS_CLIENT_CREATEGAMEREPLY_SUCCEED) {
400     t_packet * rpacket;
401    
402     if ((rpacket=packet_create(packet_class_d2cs))) {
403     packet_set_size(rpacket,sizeof(t_d2cs_client_creategamereply));
404     packet_set_type(rpacket,D2CS_CLIENT_CREATEGAMEREPLY);
405     bn_short_set(&rpacket->u.d2cs_client_creategamereply.seqno,seqno);
406     bn_short_set(&rpacket->u.d2cs_client_creategamereply.u1,0);
407     bn_short_set(&rpacket->u.d2cs_client_creategamereply.gameid,0);
408     bn_int_set(&rpacket->u.d2cs_client_creategamereply.reply,reply);
409     conn_push_outqueue(c,rpacket);
410     packet_del_ref(rpacket);
411     }
412     } else {
413     t_packet * gspacket;
414     t_sq * sq;
415     struct in_addr addr;
416    
417     if ((gspacket=packet_create(packet_class_d2gs))) {
418     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,d2cs_game_get_id(game)))) {
419     packet_set_size(gspacket,sizeof(t_d2cs_d2gs_creategamereq));
420     packet_set_type(gspacket,D2CS_D2GS_CREATEGAMEREQ);
421     bn_int_set(&gspacket->u.d2cs_d2gs_creategamereq.h.seqno,sq_get_seqno(sq));
422     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.difficulty,difficulty);
423     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.hardcore,hardcore);
424     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.expansion,expansion);
425     bn_byte_set(&gspacket->u.d2cs_d2gs_creategamereq.ladder,ladder);
426     packet_append_string(gspacket,gamename);
427     packet_append_string(gspacket,gamepass);
428     packet_append_string(gspacket,gamedesc);
429     packet_append_string(gspacket,d2cs_conn_get_account(c));
430     packet_append_string(gspacket,d2cs_conn_get_charname(c));
431     addr.s_addr = htonl(d2cs_conn_get_addr(c));
432     packet_append_string(gspacket,inet_ntoa(addr));
433     conn_push_outqueue(d2gs_get_connection(gs),gspacket);
434     }
435     packet_del_ref(gspacket);
436     eventlog(eventlog_level_info,__FUNCTION__,"request create game %s on gs %d",gamename,d2gs_get_id(gs));
437     }
438     }
439     return 0;
440     }
441    
442     static int on_client_joingamereq(t_connection * c, t_packet * packet)
443     {
444     char const * gamename;
445     char const * gamepass;
446     char const * charname;
447     char const * account;
448     t_game * game;
449     t_d2gs * gs;
450     int reply;
451     unsigned int pos;
452     unsigned int seqno;
453    
454     gs = NULL;
455     pos=sizeof(t_client_d2cs_joingamereq);
456     if (!(gamename=packet_get_str_const(packet,pos,MAX_GAMENAME_LEN))) {
457     eventlog(eventlog_level_error,__FUNCTION__,"got bad game name");
458     return -1;
459     }
460     pos+=strlen(gamename)+1;
461     if (!(gamepass=packet_get_str_const(packet,pos,MAX_GAMEPASS_LEN))) {
462     eventlog(eventlog_level_error,__FUNCTION__,"got bad game pass");
463     return -1;
464     }
465     if (!(charname=d2cs_conn_get_charname(c))) {
466     eventlog(eventlog_level_error,__FUNCTION__,"missing character name for connection");
467     return -1;
468     }
469     if (!(account=d2cs_conn_get_account(c))) {
470     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
471     return -1;
472     }
473     if (conn_check_multilogin(c,charname)<0) {
474     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
475     return -1;
476     }
477     if (!(game=d2cs_gamelist_find_game(gamename))) {
478     eventlog(eventlog_level_info,__FUNCTION__,"game %s not found",gamename);
479     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
480     } else if (!(gs=game_get_d2gs(game))) {
481     eventlog(eventlog_level_error,__FUNCTION__,"missing game server for game %s",gamename);
482     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
483     } else {
484     reply=d2cs_try_joingame(c,game,gamepass);
485     }
486    
487     seqno=bn_short_get(packet->u.client_d2cs_joingamereq.seqno);
488     if (reply!=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED) {
489     t_packet * rpacket;
490    
491     if ((rpacket=packet_create(packet_class_d2cs))) {
492     packet_set_size(rpacket,sizeof(t_d2cs_client_joingamereply));
493     packet_set_type(rpacket,D2CS_CLIENT_JOINGAMEREPLY);
494     bn_short_set(&rpacket->u.d2cs_client_joingamereply.seqno,seqno);
495     bn_short_set(&rpacket->u.d2cs_client_joingamereply.u1,0);
496     bn_short_set(&rpacket->u.d2cs_client_joingamereply.gameid,0);
497     bn_int_set(&rpacket->u.d2cs_client_joingamereply.addr,0);
498     bn_int_set(&rpacket->u.d2cs_client_joingamereply.token,0);
499     bn_int_set(&rpacket->u.d2cs_client_joingamereply.reply,reply);
500     conn_push_outqueue(c,rpacket);
501     packet_del_ref(rpacket);
502     }
503     } else {
504     t_packet * gspacket;
505     t_sq * sq;
506     struct in_addr addr;
507    
508     if ((gspacket=packet_create(packet_class_d2gs))) {
509     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,d2cs_game_get_id(game)))) {
510     packet_set_size(gspacket,sizeof(t_d2cs_d2gs_joingamereq));
511     packet_set_type(gspacket,D2CS_D2GS_JOINGAMEREQ);
512     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.h.seqno,sq_get_seqno(sq));
513     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.gameid,
514     game_get_d2gs_gameid(game));
515     sq_set_gametoken(sq,d2gs_make_token(gs));
516     bn_int_set(&gspacket->u.d2cs_d2gs_joingamereq.token,sq_get_gametoken(sq));
517     packet_append_string(gspacket,charname);
518     packet_append_string(gspacket,account);
519     addr.s_addr = htonl(d2cs_conn_get_addr(c));
520     packet_append_string(gspacket,inet_ntoa(addr));
521     conn_push_outqueue(d2gs_get_connection(gs),gspacket);
522     }
523     packet_del_ref(gspacket);
524     eventlog(eventlog_level_info,__FUNCTION__,"request join game %s for character %s on gs %d",gamename,
525     charname,d2gs_get_id(gs));
526     }
527     }
528     return 0;
529     }
530    
531     static int on_client_gamelistreq(t_connection * c, t_packet * packet)
532     {
533     t_packet * rpacket;
534     t_game * game;
535     unsigned int count;
536     unsigned int seqno;
537     time_t now;
538     unsigned int maxlifetime;
539     t_elem const * start_elem;
540     t_elem const * elem;
541    
542     seqno=bn_short_get(packet->u.client_d2cs_gamelistreq.seqno);
543     /* if (seqno%2) return 0; */
544     count=0;
545     now=time(NULL);
546     maxlifetime=prefs_get_game_maxlifetime();
547    
548     elem=start_elem=gamelist_get_curr_elem();
549     if (!elem) elem=list_get_first_const(d2cs_gamelist());
550     else elem=elem_get_next_const(d2cs_gamelist(),elem);
551    
552     for (; elem != start_elem; elem=elem_get_next_const(d2cs_gamelist(),elem)) {
553     if (!elem) {
554     elem=list_get_first_const(d2cs_gamelist());
555     if (elem == start_elem) break;
556     }
557     if (!(game=elem_get_data(elem))) {
558     eventlog(eventlog_level_error,__FUNCTION__,"got NULL game");
559     break;
560     }
561     if (maxlifetime && (now-game->create_time>maxlifetime)) continue;
562     if (!game_get_currchar(game)) continue;
563     if (!prefs_allow_gamelist_showall()) {
564     if (conn_get_charinfo_difficulty(c)!=game_get_gameflag_difficulty(game)) continue;
565     }
566     if (d2cs_try_joingame(c,game,"")!=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED) continue;
567     if ((rpacket=packet_create(packet_class_d2cs))) {
568     packet_set_size(rpacket,sizeof(t_d2cs_client_gamelistreply));
569     packet_set_type(rpacket,D2CS_CLIENT_GAMELISTREPLY);
570     bn_short_set(&rpacket->u.d2cs_client_gamelistreply.seqno,seqno);
571     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.token,d2cs_game_get_id(game));
572     bn_byte_set(&rpacket->u.d2cs_client_gamelistreply.currchar,game_get_currchar(game));
573     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.gameflag,game_get_gameflag(game));
574     packet_append_string(rpacket,d2cs_game_get_name(game));
575     packet_append_string(rpacket,game_get_desc(game));
576     conn_push_outqueue(c,rpacket);
577     packet_del_ref(rpacket);
578     count++;
579     if (prefs_get_maxgamelist() && count>=prefs_get_maxgamelist()) break;
580     }
581     }
582     gamelist_set_curr_elem(elem);
583     if (count) {
584     if ((rpacket=packet_create(packet_class_d2cs))) {
585     packet_set_size(rpacket,sizeof(t_d2cs_client_gamelistreply));
586     packet_set_type(rpacket,D2CS_CLIENT_GAMELISTREPLY);
587     bn_short_set(&rpacket->u.d2cs_client_gamelistreply.seqno,seqno);
588     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.token,0);
589     bn_byte_set(&rpacket->u.d2cs_client_gamelistreply.currchar,0);
590     bn_int_set(&rpacket->u.d2cs_client_gamelistreply.gameflag,0);
591     packet_append_string(rpacket,"");
592     packet_append_string(rpacket,"");
593     packet_append_string(rpacket,"");
594     conn_push_outqueue(c,rpacket);
595     packet_del_ref(rpacket);
596     }
597     }
598     return 0;
599     }
600    
601     static int on_client_gameinforeq(t_connection * c, t_packet * packet)
602     {
603     t_game_charinfo * info;
604     t_packet * rpacket;
605     char const * gamename;
606     t_game * game;
607     unsigned int seqno, n;
608    
609     if (!(gamename=packet_get_str_const(packet,sizeof(t_client_d2cs_gameinforeq),MAX_GAMENAME_LEN))) {
610     eventlog(eventlog_level_error,__FUNCTION__,"got bad game name");
611     return -1;
612     }
613     if (!(game=d2cs_gamelist_find_game(gamename))) {
614     eventlog(eventlog_level_error,__FUNCTION__,"game %s not found",gamename);
615     return 0;
616     }
617     seqno=bn_short_get(packet->u.client_d2cs_gameinforeq.seqno);
618     if ((rpacket=packet_create(packet_class_d2cs))) {
619     packet_set_size(rpacket,sizeof(t_d2cs_client_gameinforeply));
620     packet_set_type(rpacket,D2CS_CLIENT_GAMEINFOREPLY);
621     bn_short_set(&rpacket->u.d2cs_client_gameinforeply.seqno,seqno);
622     bn_int_set(&rpacket->u.d2cs_client_gameinforeply.gameflag,game_get_gameflag(game));
623     bn_int_set(&rpacket->u.d2cs_client_gameinforeply.etime,time(NULL)-d2cs_game_get_create_time(game));
624     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.charlevel,game_get_charlevel(game));
625     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.leveldiff,game_get_leveldiff(game));
626     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.maxchar,game_get_maxchar(game));
627     packet_append_string(rpacket, game_get_desc(game) ? game_get_desc(game) : NULL);
628    
629     n=0;
630     BEGIN_LIST_TRAVERSE_DATA_CONST(game_get_charlist(game),info)
631     {
632     if (!info->charname) {
633     eventlog(eventlog_level_error,__FUNCTION__,"got NULL charname in game %s char list",gamename);
634     continue;
635     }
636     packet_append_string(rpacket,info->charname);
637     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.class[n],info->class);
638     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.level[n],info->level);
639     n++;
640     }
641     END_LIST_TRAVERSE_DATA_CONST()
642    
643     bn_byte_set(&rpacket->u.d2cs_client_gameinforeply.currchar,n);
644     if (n!=game_get_currchar(game)) {
645     eventlog(eventlog_level_error,__FUNCTION__,"game %s character list corrupted",gamename);
646     }
647     conn_push_outqueue(c,rpacket);
648     packet_del_ref(rpacket);
649     }
650     return 0;
651     }
652    
653     static int on_client_charloginreq(t_connection * c, t_packet * packet)
654     {
655     t_packet * bnpacket;
656     char const * charname;
657     char const * account;
658     t_sq * sq;
659     t_d2charinfo_file data;
660     unsigned int expire_time;
661 sysadm 1.2 char checknum;
662 sysadm 1.1
663     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_charloginreq),MAX_CHARNAME_LEN))) {
664     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
665     return -1;
666     }
667     if (!(account=d2cs_conn_get_account(c))) {
668     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
669     return -1;
670     }
671     if (d2charinfo_load(account,charname,&data)<0) {
672     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for character %s(*%s)",charname,account);
673     return -1;
674     } else if (!bnetd_conn()) {
675     eventlog(eventlog_level_error,__FUNCTION__,"no bnetd connection available,character login rejected");
676     return -1;
677     }
678     expire_time = prefs_get_char_expire_time();
679     if (expire_time && (time(NULL) > bn_int_get(data.header.last_time) + expire_time)) {
680     t_packet * rpacket;
681    
682     if ((rpacket=packet_create(packet_class_d2cs))) {
683     packet_set_size(rpacket,sizeof(t_d2cs_client_charloginreply));
684     packet_set_type(rpacket,D2CS_CLIENT_CHARLOGINREPLY);
685     bn_int_set(&rpacket->u.d2cs_client_charloginreply.reply, D2CS_CLIENT_CHARLOGINREPLY_EXPIRED);
686     conn_push_outqueue(c,rpacket);
687     packet_del_ref(rpacket);
688     }
689     eventlog(eventlog_level_info,__FUNCTION__,"character %s(*%s) login rejected due to char expired",charname,account);
690     return 0;
691     }
692    
693     conn_set_charinfo(c,&data.summary);
694     eventlog(eventlog_level_info,__FUNCTION__,"got character %s(*%s) login request",charname,account);
695 sysadm 1.2
696     /* generate checknum, save it in t_connection, and send it to bnetd, by sowater */
697     do {
698     checknum=d2cs_random_char();
699     }while(d2cs_conn_get_checknum(c)==checknum);
700     d2cs_conn_set_checknum(c,checknum);
701     eventlog(eventlog_level_info,__FUNCTION__,"set checknum %c to connection",checknum);
702    
703 sysadm 1.1 if ((bnpacket=packet_create(packet_class_d2cs_bnetd))) {
704     if ((sq=sq_create(d2cs_conn_get_sessionnum(c),packet,0))) {
705     packet_set_size(bnpacket,sizeof(t_d2cs_bnetd_charloginreq));
706     packet_set_type(bnpacket,D2CS_BNETD_CHARLOGINREQ);
707     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.h.seqno,sq_get_seqno(sq));
708     bn_int_set(&bnpacket->u.d2cs_bnetd_charloginreq.sessionnum,
709     conn_get_bnetd_sessionnum(c));
710     packet_append_string(bnpacket,charname);
711     packet_append_string(bnpacket,(char const *)&data.portrait);
712 sysadm 1.2
713     /*sowater */
714     packet_append_data(bnpacket,&checknum,sizeof(checknum));
715    
716 sysadm 1.1 conn_push_outqueue(bnetd_conn(),bnpacket);
717     }
718     packet_del_ref(bnpacket);
719     }
720     return 0;
721     }
722    
723     static int on_client_deletecharreq(t_connection * c, t_packet * packet)
724     {
725     t_packet * rpacket;
726     char const * charname;
727     char const * account;
728     unsigned int reply;
729    
730     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_deletecharreq),MAX_CHARNAME_LEN))) {
731     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
732     return -1;
733     }
734     if (conn_check_multilogin(c,charname)<0) {
735     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
736     return -1;
737     }
738     d2cs_conn_set_charname(c,NULL);
739     account=d2cs_conn_get_account(c);
740     if (d2char_delete(account,charname)<0) {
741     eventlog(eventlog_level_error,__FUNCTION__,"failed to delete character %s(*%s)",charname,account);
742     reply = D2CS_CLIENT_DELETECHARREPLY_FAILED;
743     } else {
744     reply = D2CS_CLIENT_DELETECHARREPLY_SUCCEED;
745     }
746     if ((rpacket=packet_create(packet_class_d2cs))) {
747     packet_set_size(rpacket,sizeof(t_d2cs_client_deletecharreply));
748     packet_set_type(rpacket,D2CS_CLIENT_DELETECHARREPLY);
749     bn_short_set(&rpacket->u.d2cs_client_deletecharreply.u1,0);
750     bn_int_set(&rpacket->u.d2cs_client_deletecharreply.reply,reply);
751     conn_push_outqueue(c,rpacket);
752     packet_del_ref(rpacket);
753     }
754     return 0;
755     }
756    
757     static int on_client_ladderreq(t_connection * c, t_packet * packet)
758     {
759     unsigned char type;
760     unsigned short start_pos;
761    
762     type=bn_byte_get(packet->u.client_d2cs_ladderreq.type);
763     start_pos=bn_short_get(packet->u.client_d2cs_ladderreq.start_pos);
764     d2cs_send_client_ladder(c,type,start_pos);
765     return 0;
766     }
767    
768     static int d2cs_send_client_ladder(t_connection * c, unsigned char type, unsigned short from)
769     {
770     t_packet * rpacket;
771     t_d2cs_client_ladderinfo const * ladderinfo;
772     unsigned int curr_len, cont_len, total_len;
773     t_d2cs_client_ladderheader ladderheader;
774     t_d2cs_client_ladderinfoheader infoheader;
775     unsigned int start_pos, count, count_per_packet, npacket;
776     unsigned int i, n, curr_pos;
777    
778     start_pos=from;
779     count=prefs_get_ladderlist_count();
780     if (d2ladder_get_ladder(&start_pos,&count,type,&ladderinfo)<0) {
781     eventlog(eventlog_level_error,__FUNCTION__,"error get ladder for type %d start_pos %d",type,from);
782     return 0;
783     }
784    
785     count_per_packet=14;
786     npacket=count/count_per_packet;
787     if (count % count_per_packet) npacket++;
788    
789     curr_len=0;
790     cont_len=0;
791     total_len = count * sizeof(*ladderinfo) + sizeof(ladderheader) + sizeof(infoheader) * npacket;
792     total_len -= 4;
793     bn_short_set(&ladderheader.start_pos,start_pos);
794     bn_short_set(&ladderheader.u1,0);
795     bn_int_set(&ladderheader.count1,count);
796    
797     for (i=0; i< npacket; i++) {
798     curr_len=0;
799     if ((rpacket=packet_create(packet_class_d2cs))) {
800     packet_set_size(rpacket,sizeof(t_d2cs_client_ladderreply));
801     packet_set_type(rpacket,D2CS_CLIENT_LADDERREPLY);
802     bn_byte_set(&rpacket->u.d2cs_client_ladderreply.type, type);
803     bn_short_set(&rpacket->u.d2cs_client_ladderreply.total_len, total_len);
804     bn_short_set(&rpacket->u.d2cs_client_ladderreply.cont_len,cont_len);
805     if (i==0) {
806     bn_int_set(&infoheader.count2,count);
807     packet_append_data(rpacket,&ladderheader,sizeof(ladderheader));
808     curr_len += sizeof(ladderheader);
809     } else {
810     bn_int_set(&infoheader.count2,0);
811     }
812     packet_append_data(rpacket,&infoheader,sizeof(infoheader));
813     curr_len += sizeof(infoheader);
814     for (n=0; n< count_per_packet; n++) {
815     curr_pos = n + i * count_per_packet;
816     if (curr_pos >= count) break;
817     packet_append_data(rpacket, ladderinfo+curr_pos, sizeof(*ladderinfo));
818     curr_len += sizeof(*ladderinfo);
819     }
820     if (i==0) {
821     packet_set_size(rpacket, packet_get_size(rpacket)-4);
822     curr_len -= 4;
823     }
824     bn_short_set(&rpacket->u.d2cs_client_ladderreply.curr_len,curr_len);
825     conn_push_outqueue(c,rpacket);
826     packet_del_ref(rpacket);
827     }
828     cont_len += curr_len;
829     }
830     return 0;
831     }
832    
833     static int on_client_motdreq(t_connection * c, t_packet * packet)
834     {
835     t_packet * rpacket;
836    
837     if (!packet)
838     return -1;
839    
840     if ((rpacket=packet_create(packet_class_d2cs))) {
841     packet_set_size(rpacket,sizeof(t_d2cs_client_motdreply));
842     packet_set_type(rpacket,D2CS_CLIENT_MOTDREPLY);
843     bn_byte_set(&rpacket->u.d2cs_client_motdreply.u1,0);
844     packet_append_string(rpacket,prefs_get_motd());
845     conn_push_outqueue(c,rpacket);
846     packet_del_ref(rpacket);
847     }
848     return 0;
849     }
850    
851     static int on_client_cancelcreategame(t_connection * c, t_packet * packet)
852     {
853     t_gq * gq;
854     t_elem * elem;
855    
856     if (!packet)
857     return -1;
858    
859     if (!(gq=conn_get_gamequeue(c))) {
860     return 0;
861     }
862     conn_set_gamequeue(c,NULL);
863     gq_destroy(gq,&elem);
864     return 0;
865     }
866    
867     static int on_client_charladderreq(t_connection * c, t_packet * packet)
868     {
869     t_packet * rpacket;
870     char const * charname;
871     unsigned int expansion, hardcore, type;
872     int pos;
873    
874     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_charladderreq),MAX_CHARNAME_LEN))) {
875     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
876     return -1;
877     }
878     expansion=bn_int_get(packet->u.client_d2cs_charladderreq.expansion);
879     hardcore=bn_int_get(packet->u.client_d2cs_charladderreq.hardcore);
880     type=0; /* avoid warning */
881     if (hardcore && expansion) {
882     type=D2LADDER_EXP_HC_OVERALL;
883     } else if (!hardcore && expansion) {
884     type=D2LADDER_EXP_STD_OVERALL;
885     } else if (hardcore && !expansion) {
886     type=D2LADDER_HC_OVERALL;
887     } else if (!hardcore && !expansion) {
888     type=D2LADDER_STD_OVERALL;
889     }
890     if ((pos=d2ladder_find_character_pos(type,charname))<0) {
891     if ((rpacket=packet_create(packet_class_d2cs))) {
892     packet_set_size(rpacket,sizeof(t_d2cs_client_ladderreply));
893     packet_set_type(rpacket,D2CS_CLIENT_LADDERREPLY);
894     bn_byte_set(&rpacket->u.d2cs_client_ladderreply.type, type);
895     bn_short_set(&rpacket->u.d2cs_client_ladderreply.total_len,0);
896     bn_short_set(&rpacket->u.d2cs_client_ladderreply.curr_len,0);
897     bn_short_set(&rpacket->u.d2cs_client_ladderreply.cont_len,0);
898     conn_push_outqueue(c,rpacket);
899     packet_del_ref(rpacket);
900     }
901     return 0;
902     }
903     pos -= prefs_get_ladderlist_count()/2;
904     if (pos < 0) pos=0;
905     d2cs_send_client_ladder(c,type,pos);
906     return 0;
907     }
908    
909     static int on_client_charlistreq(t_connection * c, t_packet * packet)
910     {
911     t_packet * rpacket;
912     t_pdir * dir;
913     char const * account;
914     char const * charname;
915     char * path;
916     t_d2charinfo_file * charinfo;
917     unsigned int n, maxchar;
918     t_elist charlist_head;
919     char const * charlist_sort_order;
920    
921     if (!packet)
922     return -1;
923    
924     if (!(account=d2cs_conn_get_account(c))) {
925     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
926     return -1;
927     }
928     path=xmalloc(strlen(prefs_get_charinfo_dir())+1+strlen(account)+1);
929     charlist_sort_order = prefs_get_charlist_sort_order();
930    
931     elist_init(&charlist_head);
932    
933     d2char_get_infodir_name(path,account);
934     maxchar=prefs_get_maxchar();
935     if ((rpacket=packet_create(packet_class_d2cs))) {
936     packet_set_size(rpacket,sizeof(t_d2cs_client_charlistreply));
937     packet_set_type(rpacket,D2CS_CLIENT_CHARLISTREPLY);
938     bn_short_set(&rpacket->u.d2cs_client_charlistreply.u1,0);
939     n=0;
940     if (!(dir=p_opendir(path))) {
941     eventlog(eventlog_level_info,__FUNCTION__,"(*%s) charinfo directory do not exist, building it",account);
942     p_mkdir(path,S_IRWXU);
943     } else {
944     while ((charname=p_readdir(dir))) {
945     if (charname[0]=='.') continue;
946     charinfo = xmalloc(sizeof(t_d2charinfo_file));
947     if (d2charinfo_load(account,charname,charinfo)<0) {
948     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for %s(*%s)",charname,account);
949     xfree((void *)charinfo);
950     continue;
951     }
952     eventlog(eventlog_level_debug,__FUNCTION__,"adding char %s (*%s)", charname, account);
953     d2charlist_add_char(&charlist_head,charinfo,0);
954     n++;
955     if (n>=maxchar) break;
956     }
957     if (prefs_allow_newchar() && (n<maxchar)) {
958     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,maxchar);
959     } else {
960     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,0);
961     }
962     p_closedir(dir);
963     if (!strcmp(charlist_sort_order, "ASC"))
964     {
965     t_elist * curr, * safe;
966     t_d2charlist * ccharlist;
967    
968     elist_for_each_safe(curr,&charlist_head,safe)
969     {
970     ccharlist = elist_entry(curr,t_d2charlist,list);
971     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
972     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
973     xfree((void *)ccharlist->charinfo);
974     xfree((void *)ccharlist);
975     }
976     }
977     else
978     {
979     t_elist * curr, * safe;
980     t_d2charlist * ccharlist;
981    
982     elist_for_each_safe_rev(curr,&charlist_head,safe)
983     {
984     ccharlist = elist_entry(curr,t_d2charlist,list);
985     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
986     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
987     xfree((void *)ccharlist->charinfo);
988     xfree((void *)ccharlist);
989    
990     }
991     }
992     }
993     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar,n);
994     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar2,n);
995     conn_push_outqueue(c,rpacket);
996     packet_del_ref(rpacket);
997     }
998     xfree(path);
999     return 0;
1000     }
1001    
1002     static int on_client_charlistreq_110(t_connection * c, t_packet * packet)
1003     {
1004     t_packet * rpacket;
1005     t_pdir * dir;
1006     char const * account;
1007     char const * charname;
1008     char * path;
1009    
1010     t_d2charinfo_file * charinfo;
1011     unsigned int n, maxchar;
1012     t_elist charlist_head;
1013    
1014     unsigned int exp_time;
1015     unsigned int curr_exp_time;
1016     char const * charlist_sort_order;
1017    
1018     if (!packet)
1019     return -1;
1020    
1021     if (!(account=d2cs_conn_get_account(c))) {
1022     eventlog(eventlog_level_error,__FUNCTION__,"missing account for connection");
1023     return -1;
1024     }
1025     path=xmalloc(strlen(prefs_get_charinfo_dir())+1+strlen(account)+1);
1026     charlist_sort_order = prefs_get_charlist_sort_order();
1027    
1028     elist_init(&charlist_head);
1029    
1030     d2char_get_infodir_name(path,account);
1031     if (prefs_allow_newchar())
1032     maxchar=prefs_get_maxchar();
1033     else
1034     maxchar=0;
1035    
1036     if ((rpacket=packet_create(packet_class_d2cs))) {
1037     packet_set_size(rpacket,sizeof(t_d2cs_client_charlistreply_110));
1038     packet_set_type(rpacket,D2CS_CLIENT_CHARLISTREPLY_110);
1039     bn_short_set(&rpacket->u.d2cs_client_charlistreply_110.u1,0);
1040     n=0;
1041     if (!(dir=p_opendir(path))) {
1042     eventlog(eventlog_level_info,__FUNCTION__,"(*%s) charinfo directory do not exist, building it",account);
1043     p_mkdir(path,S_IRWXU);
1044     } else {
1045     exp_time = prefs_get_char_expire_time();
1046     while ((charname=p_readdir(dir))) {
1047     if (charname[0]=='.') continue;
1048     charinfo = xmalloc(sizeof(t_d2charinfo_file));
1049     if (d2charinfo_load(account,charname,charinfo)<0) {
1050     eventlog(eventlog_level_error,__FUNCTION__,"error loading charinfo for %s(*%s)",charname,account);
1051     xfree(charinfo);
1052     continue;
1053     }
1054     if (exp_time) {
1055     curr_exp_time = bn_int_get(charinfo->header.last_time)+exp_time;
1056     } else {
1057     curr_exp_time = 0x7FFFFFFF;
1058     }
1059     eventlog(eventlog_level_debug,__FUNCTION__,"adding char %s (*%s)", charname, account);
1060     d2charlist_add_char(&charlist_head,charinfo,curr_exp_time);
1061     n++;
1062     if (n>=maxchar) break;
1063     }
1064     if (n>=maxchar)
1065     maxchar = 0;
1066    
1067     p_closedir(dir);
1068     if (!strcmp(charlist_sort_order, "ASC"))
1069     {
1070     t_elist * curr, *safe;
1071     t_d2charlist * ccharlist;
1072    
1073     elist_for_each_safe(curr,&charlist_head,safe)
1074     {
1075     bn_int bn_exp_time;
1076    
1077     ccharlist = elist_entry(curr,t_d2charlist,list);
1078     bn_int_set(&bn_exp_time,ccharlist->expiration_time);
1079     packet_append_data(rpacket,bn_exp_time,sizeof(bn_exp_time));
1080     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
1081     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
1082     xfree((void *)ccharlist->charinfo);
1083     xfree((void *)ccharlist);
1084     }
1085     }
1086     else
1087     {
1088     t_elist * curr, *safe;
1089     t_d2charlist * ccharlist;
1090    
1091     elist_for_each_safe_rev(curr,&charlist_head,safe)
1092     {
1093     bn_int bn_exp_time;
1094    
1095     ccharlist = elist_entry(curr,t_d2charlist,list);
1096     bn_int_set(&bn_exp_time,ccharlist->expiration_time);
1097     packet_append_data(rpacket,bn_exp_time,sizeof(bn_exp_time));
1098     packet_append_string(rpacket,ccharlist->charinfo->header.charname);
1099     packet_append_string(rpacket,(char *)&ccharlist->charinfo->portrait);
1100     xfree((void *)ccharlist->charinfo);
1101     xfree((void *)ccharlist);
1102     }
1103     }
1104     }
1105     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar,n);
1106     bn_short_set(&rpacket->u.d2cs_client_charlistreply.currchar2,n);
1107     bn_short_set(&rpacket->u.d2cs_client_charlistreply.maxchar,maxchar);
1108    
1109     conn_push_outqueue(c,rpacket);
1110     packet_del_ref(rpacket);
1111     }
1112     xfree(path);
1113     return 0;
1114     }
1115    
1116     static int on_client_convertcharreq(t_connection * c, t_packet * packet)
1117     {
1118     t_packet * rpacket;
1119     char const * charname;
1120     char const * account;
1121     unsigned int reply;
1122    
1123     if (!(charname=packet_get_str_const(packet,sizeof(t_client_d2cs_convertcharreq),MAX_CHARNAME_LEN))) {
1124     eventlog(eventlog_level_error,__FUNCTION__,"got bad character name");
1125     return -1;
1126     }
1127     if (conn_check_multilogin(c,charname)<0) {
1128     eventlog(eventlog_level_error,__FUNCTION__,"character %s is already logged in",charname);
1129     return -1;
1130     }
1131     account=d2cs_conn_get_account(c);
1132     if (d2char_convert(account,charname)<0) {
1133     eventlog(eventlog_level_error,__FUNCTION__,"failed to convert character %s(*%s)",charname,account);
1134     reply = D2CS_CLIENT_CONVERTCHARREPLY_FAILED;
1135     } else {
1136     reply = D2CS_CLIENT_CONVERTCHARREPLY_SUCCEED;
1137     }
1138     if ((rpacket=packet_create(packet_class_d2cs))) {
1139     packet_set_size(rpacket,sizeof(t_d2cs_client_convertcharreply));
1140     packet_set_type(rpacket,D2CS_CLIENT_CONVERTCHARREPLY);
1141     bn_int_set(&rpacket->u.d2cs_client_convertcharreply.reply,reply);
1142     conn_push_outqueue(c,rpacket);
1143     packet_del_ref(rpacket);
1144     }
1145     return 0;
1146     }
1147    
1148     extern int d2cs_send_client_creategamewait(t_connection * c, unsigned int position)
1149     {
1150     t_packet * packet;
1151    
1152     ASSERT(c,-1);
1153     if ((packet=packet_create(packet_class_d2cs))) {
1154     packet_set_size(packet,sizeof(t_d2cs_client_creategamewait));
1155     packet_set_type(packet,D2CS_CLIENT_CREATEGAMEWAIT);
1156     bn_int_set(&packet->u.d2cs_client_creategamewait.position,position);
1157     conn_push_outqueue(c,packet);
1158     packet_del_ref(packet);
1159     }
1160     return 0;
1161     }
1162    
1163     extern int d2cs_handle_client_creategame(t_connection * c, t_packet * packet)
1164     {
1165     return on_client_creategamereq(c,packet);
1166     }
1167    
1168     static unsigned int d2cs_try_joingame(t_connection const * c, t_game const * game, char const * gamepass)
1169     {
1170     unsigned int reply;
1171    
1172     ASSERT(c,D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST);
1173     ASSERT(game,D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST);
1174     if (!game_get_created(game)) {
1175     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
1176     } else if (!game_get_d2gs(game)) {
1177     reply=D2CS_CLIENT_JOINGAMEREPLY_NOT_EXIST;
1178     } else if (conn_get_charinfo_ladder(c) != game_get_gameflag_ladder(game)) {
1179     reply=D2CS_CLIENT_JOINGAMEREPLY_NORMAL_LADDER;
1180     } else if (conn_get_charinfo_expansion(c) != game_get_gameflag_expansion(game)) {
1181     reply=D2CS_CLIENT_JOINGAMEREPLY_CLASSIC_EXPANSION;
1182     } else if (conn_get_charinfo_hardcore(c) != game_get_gameflag_hardcore(game)) {
1183     reply=D2CS_CLIENT_JOINGAMEREPLY_HARDCORE_SOFTCORE;
1184     } else if (conn_get_charinfo_difficulty(c) < game_get_gameflag_difficulty(game)) {
1185     reply=D2CS_CLIENT_JOINGAMEREPLY_NORMAL_NIGHTMARE;
1186     } else if (prefs_allow_gamelimit()) {
1187     if (game_get_maxchar(game) <= game_get_currchar(game)) {
1188     reply=D2CS_CLIENT_JOINGAMEREPLY_GAME_FULL;
1189     } else if (conn_get_charinfo_level(c) > game_get_maxlevel(game)) {
1190     reply=D2CS_CLIENT_JOINGAMEREPLY_LEVEL_LIMIT;
1191     } else if (conn_get_charinfo_level(c) < game_get_minlevel(game)) {
1192     reply=D2CS_CLIENT_JOINGAMEREPLY_LEVEL_LIMIT;
1193     } else if (strcmp(d2cs_game_get_pass(game),gamepass)) {
1194     reply=D2CS_CLIENT_JOINGAMEREPLY_BAD_PASS;
1195     } else {
1196     reply=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED;
1197     }
1198     } else {
1199     if (game_get_currchar(game) >= MAX_CHAR_PER_GAME) {
1200     reply=D2CS_CLIENT_JOINGAMEREPLY_GAME_FULL;
1201     } else {
1202     reply=D2CS_CLIENT_JOINGAMEREPLY_SUCCEED;
1203     }
1204     }
1205     return reply;
1206     }

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