2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * accept.c: Keep track of people logged in
30 * Known contributors to this file:
40 #include "prototypes.h"
43 #include "empthread.h"
52 #include <arpa/inet.h>
53 #include <sys/socket.h>
57 #include <netinet/in.h>
58 #include <sys/ioctl.h>
67 static struct emp_qelem Players;
68 static int player_socket;
73 struct sockaddr_in sin;
79 emp_initque(&Players);
80 init_player_commands();
82 sin.sin_family = AF_INET;
84 sin.sin_addr.s_addr = INADDR_ANY;
85 else if (isdigit(*listen_addr))
86 sin.sin_addr.s_addr = inet_addr(listen_addr);
88 hp = gethostbyname(listen_addr);
90 logerror("Can't resolve listen address %s", listen_addr);
93 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
95 if (isdigit(*loginport))
96 sin.sin_port = htons(atoi(loginport));
98 sp = getservbyname(loginport, "tcp");
100 logerror("Can't resolve service %s", loginport);
103 sin.sin_port = sp->s_port;
105 if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
106 logerror("inet socket create");
111 * WIN32's SO_REUSEADDR operates differently than POSIX's SO_REUSEADDR.
112 * WIN32's SO_REUSEADDR allows the port number to be used immediately
113 * even if the port number is currently being used by another program.
114 * In WIN32, there is no waiting time when a port is closed before it
115 * can be reused so SO_REUSEADDR is not required for WIN32.
118 if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0) {
119 logerror("inet socket setsockopt SO_REUSEADDR (%d)", errno);
123 if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
124 logerror("inet socket bind");
127 if (listen(s, SOMAXCONN) < 0) {
128 logerror("inet socket listen");
135 player_new(int s, struct sockaddr_in *sin)
138 #ifdef RESOLVE_IPADDRESS
139 struct hostent *hostp;
142 lp = malloc(sizeof(struct player));
145 memset(lp, 0, sizeof(struct player));
147 /* real player, not dummy created by update and market update */
149 IO_READ | IO_WRITE | IO_NBLOCK,
155 emp_insque(&lp->queue, &Players);
156 strcpy(lp->hostaddr, inet_ntoa(sin->sin_addr));
157 #ifdef RESOLVE_IPADDRESS
159 (hostp = gethostbyaddr(&sin->sin_addr, sizeof(sin->sin_addr),
161 strcpy(lp->hostname, hostp->h_name);
162 #endif /* RESOLVE_IPADDRESS */
171 player_delete(struct player *lp)
175 back = (struct player *)lp->queue.q_back;
177 emp_remque(&lp->queue);
179 /* it's a real player */
184 /* XXX may need to free bigmap here */
189 player_next(struct player *lp)
192 lp = (struct player *)Players.q_forw;
194 lp = (struct player *)lp->queue.q_forw;
195 if (&lp->queue == &Players)
201 player_prev(struct player *lp)
204 lp = (struct player *)Players.q_back;
206 lp = (struct player *)lp->queue.q_back;
207 if (&lp->queue == &Players)
213 * Return player in state PS_PLAYING for CNUM.
216 getplayer(natid cnum)
218 struct emp_qelem *qp;
221 for (qp = Players.q_forw; qp != &Players; qp = qp->q_forw) {
222 pl = (struct player *)qp;
223 if (pl->cnum == cnum && pl->state == PS_PLAYING)
231 player_find_other(struct player *us, register natid cnum)
233 register struct emp_qelem *qp;
235 for (qp = Players.q_forw; qp != &Players; qp = qp->q_forw)
236 if (((struct player *)qp)->cnum == cnum &&
237 ((struct player *)qp != us) &&
238 (((struct player *)qp)->state == PS_PLAYING))
239 return (struct player *)qp;
246 player_wakeup_all(natid cnum)
248 register struct player *lp;
250 if (NULL != (lp = getplayer(cnum)))
255 player_wakeup(struct player *pl)
258 empth_wakeup(pl->proc);
263 player_accept(void *unused)
265 struct sockaddr_in sin;
266 int s = player_socket;
275 empth_select(s, EMPTH_FD_READ);
277 ns = accept(s, (struct sockaddr *)&sin, &len);
279 logerror("new socket accept");
282 (void)setsockopt(ns, SOL_SOCKET, SO_KEEPALIVE, &set, sizeof(set));
283 np = player_new(ns, &sin);
285 logerror("can't create player for fd %d", ns);
289 /* XXX may not be big enough */
291 /* budget */ + max(WORLD_X * WORLD_Y / 2 * sizeof(int) * 7,
292 /* power */ MAXNOC * sizeof(struct powstr));
293 sprintf(buf, "Player (fd #%d)", ns);
294 empth_create(PP_PLAYER, player_login, stacksize,
295 0, buf, "Empire player", np);