2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * accept.c: Keep track of people logged in
30 * Known contributors to this file:
32 * Markus Armbruster, 2005
43 #include "prototypes.h"
46 #include "empthread.h"
55 #include <arpa/inet.h>
56 #include <sys/socket.h>
59 #include <netinet/in.h>
60 #include <sys/ioctl.h>
69 static struct emp_qelem Players;
70 static int player_socket;
71 static int player_addrlen;
76 emp_initque(&Players);
77 init_player_commands();
79 player_socket = tcp_listen(*listen_addr ? listen_addr : NULL,
80 loginport, &player_addrlen);
88 lp = malloc(sizeof(struct player));
91 memset(lp, 0, sizeof(struct player));
93 /* real player, not dummy created by update and market update */
95 IO_READ | IO_WRITE | IO_NBLOCK,
101 emp_insque(&lp->queue, &Players);
110 player_delete(struct player *lp)
114 back = (struct player *)lp->queue.q_back;
116 emp_remque(&lp->queue);
118 /* it's a real player */
123 /* XXX may need to free bigmap here */
128 player_next(struct player *lp)
131 lp = (struct player *)Players.q_forw;
133 lp = (struct player *)lp->queue.q_forw;
134 if (&lp->queue == &Players)
140 player_prev(struct player *lp)
143 lp = (struct player *)Players.q_back;
145 lp = (struct player *)lp->queue.q_back;
146 if (&lp->queue == &Players)
152 * Return player in state PS_PLAYING for CNUM.
155 getplayer(natid cnum)
157 struct emp_qelem *qp;
160 for (qp = Players.q_forw; qp != &Players; qp = qp->q_forw) {
161 pl = (struct player *)qp;
162 if (pl->cnum == cnum && pl->state == PS_PLAYING)
170 player_wakeup_all(natid cnum)
172 register struct player *lp;
174 if (NULL != (lp = getplayer(cnum)))
179 player_wakeup(struct player *pl)
182 empth_wakeup(pl->proc);
187 player_accept(void *unused)
189 struct sockaddr *sap;
191 int s = player_socket;
198 #ifdef RESOLVE_IPADDRESS
199 struct hostent *hostp;
202 /* auto sockaddr_storage would be simpler, but less portable */
203 sap = malloc(player_addrlen);
206 empth_select(s, EMPTH_FD_READ);
207 len = player_addrlen;
208 ns = accept(s, sap, &len);
209 /* FIXME accept() can block on some systems (RST after select() reported s ready) */
211 logerror("new socket accept");
214 /* FIXME SO_KEEPALIVE is useless, player_kill_idle() strikes long before */
215 (void)setsockopt(ns, SOL_SOCKET, SO_KEEPALIVE, &set, sizeof(set));
218 logerror("can't create player for fd %d", ns);
222 #ifdef HAVE_GETADDRINFO
223 inaddr = sap->sa_family == AF_INET
224 ? (void *)&((struct sockaddr_in *)sap)->sin_addr
225 : (void *)&((struct sockaddr_in6 *)sap)->sin6_addr;
226 /* Assumes that if you got getaddrinfo(), you got inet_ntop() too */
227 if (!inet_ntop(sap->sa_family, inaddr,
228 np->hostaddr, sizeof(np->hostaddr))) {
229 logerror("inet_ntop() failed: %s", strerror(errno));
234 inaddr = &((struct sockaddr_in *)sap)->sin_addr;
235 strcpy(np->hostaddr, inet_ntoa(*(struct in_addr *)inaddr));
237 #ifdef RESOLVE_IPADDRESS
238 hostp = gethostbyaddr(inaddr, player_addrlen, sap->sa_family);
240 strcpy(np->hostname, hostp->h_name);
241 #endif /* RESOLVE_IPADDRESS */
242 /* XXX may not be big enough */
244 /* budget */ + MAX(WORLD_X * WORLD_Y / 2 * sizeof(int) * 7,
245 /* power */ MAXNOC * sizeof(struct powstr));
246 sprintf(buf, "Player (fd #%d)", ns);
247 empth_create(PP_PLAYER, player_login, stacksize,
248 0, buf, "Empire player", np);