2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2008, 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
39 #include <sys/types.h>
40 #include <sys/socket.h>
41 #include <netinet/in.h>
42 #include <arpa/inet.h>
47 #include "empthread.h"
54 #include "prototypes.h"
56 static struct emp_qelem Players;
57 static int player_socket;
58 static size_t player_addrlen;
63 emp_initque(&Players);
64 init_player_commands();
66 player_socket = tcp_listen(*listen_addr ? listen_addr : NULL,
67 loginport, &player_addrlen);
75 lp = malloc(sizeof(struct player));
78 memset(lp, 0, sizeof(struct player));
80 /* real player, not dummy created by update and market update */
81 lp->iop = io_open(s, IO_READ | IO_WRITE | IO_NBLOCK, IO_BUFSIZE);
86 emp_insque(&lp->queue, &Players);
95 player_delete(struct player *lp)
99 back = (struct player *)lp->queue.q_back;
101 emp_remque(&lp->queue);
103 /* it's a real player */
108 /* XXX may need to free bigmap here */
113 player_next(struct player *lp)
116 lp = (struct player *)Players.q_forw;
118 lp = (struct player *)lp->queue.q_forw;
119 if (&lp->queue == &Players)
125 player_prev(struct player *lp)
128 lp = (struct player *)Players.q_back;
130 lp = (struct player *)lp->queue.q_back;
131 if (&lp->queue == &Players)
137 * Return player in state PS_PLAYING for CNUM.
140 getplayer(natid cnum)
142 struct emp_qelem *qp;
145 for (qp = Players.q_forw; qp != &Players; qp = qp->q_forw) {
146 pl = (struct player *)qp;
147 if (pl->cnum == cnum && pl->state == PS_PLAYING)
156 player_accept(void *unused)
158 struct sockaddr *sap;
160 int s = player_socket;
167 #ifdef RESOLVE_IPADDRESS
168 struct hostent *hostp;
171 /* auto sockaddr_storage would be simpler, but less portable */
172 sap = malloc(player_addrlen);
175 empth_select(s, EMPTH_FD_READ);
176 len = player_addrlen;
177 ns = accept(s, sap, &len);
178 /* FIXME accept() can block on some systems (RST after select() reports ready) */
180 logerror("new socket accept");
183 /* FIXME SO_KEEPALIVE is useless, player_kill_idle() strikes long before */
184 (void)setsockopt(ns, SOL_SOCKET, SO_KEEPALIVE, &set, sizeof(set));
187 logerror("can't create player for fd %d", ns);
191 #ifdef HAVE_GETADDRINFO
192 inaddr = sap->sa_family == AF_INET
193 ? (void *)&((struct sockaddr_in *)sap)->sin_addr
194 : (void *)&((struct sockaddr_in6 *)sap)->sin6_addr;
195 /* Assumes that if you got getaddrinfo(), you got inet_ntop() too */
196 if (!inet_ntop(sap->sa_family, inaddr,
197 np->hostaddr, sizeof(np->hostaddr))) {
198 logerror("inet_ntop() failed: %s", strerror(errno));
203 inaddr = &((struct sockaddr_in *)sap)->sin_addr;
204 strcpy(np->hostaddr, inet_ntoa(*(struct in_addr *)inaddr));
206 #ifdef RESOLVE_IPADDRESS
207 hostp = gethostbyaddr(inaddr, player_addrlen, sap->sa_family);
209 strcpy(np->hostname, hostp->h_name);
210 #endif /* RESOLVE_IPADDRESS */
211 /* FIXME ancient black magic; figure out true stack need */
213 /* budget */ + MAX(WORLD_SZ() * sizeof(int) * 7,
214 /* power */ MAXNOC * sizeof(struct powstr));
215 sprintf(buf, "Player (fd #%d)", ns);
216 empth_create(player_login, stacksize, 0, buf, np);