-/*
- * A server for a multi-player version of Tetris
- *
- * Copyright (C) 1996 Roger Espel Llima <roger.espel.llima@pobox.com>
- *
- * Started: 10 Oct 1996
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation. See the file COPYING for details.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
+/***********************************************************
+* Rocks'n'Diamonds -- McDuffin Strikes Back! *
+*----------------------------------------------------------*
+* (c) 1995-98 Artsoft Entertainment *
+* Holger Schemel *
+* Oststrasse 11a *
+* 33604 Bielefeld *
+* phone: ++49 +521 290471 *
+* email: aeglos@valinor.owl.de *
+*----------------------------------------------------------*
+* network.c *
+***********************************************************/
+
#include <unistd.h>
#include <fcntl.h>
-#include <sys/types.h>
#include <sys/time.h>
#include <signal.h>
#include <sys/socket.h>
#include "misc.h"
static int clients = 0;
-static int bots = 0;
static int onceonly = 0;
-static int timetoplay = 0;
static int is_daemon = 0;
-static int levelnr = 5;
-static int mode = -1;
-static int paused = 0;
-struct user
+struct NetworkServerPlayerInfo
{
int fd;
- unsigned char nick[16];
+ unsigned char player_name[16];
unsigned char number;
- struct user *next, *nextvictim;
+ struct NetworkServerPlayerInfo *next;
char active;
char introduced;
unsigned char readbuf[MAX_BUFFER_SIZE];
- int nread;
unsigned char writbuf[MAX_BUFFER_SIZE];
- int nwrite;
- char playing;
- char isbot;
- int lines;
- unsigned int games;
- unsigned char action;
- int action_received;
+ int nread, nwrite;
+ byte action;
+ boolean action_received;
};
-static struct user *user0 = NULL;
+static struct NetworkServerPlayerInfo *user0 = NULL;
#define NEXT(u) ((u)->next ? (u)->next : user0)
static int interrupt;
static int tcp = -1;
-static unsigned long frame_counter = 0;
+static unsigned long ServerFrameCounter = 0;
static fd_set fds;
exit(1);
}
-static void addtobuffer(struct user *u, unsigned char *b, int len)
+static void addtobuffer(struct NetworkServerPlayerInfo *u,
+ unsigned char *b, int len)
{
if (u->nwrite + len >= MAX_BUFFER_SIZE)
Error(ERR_EXIT, "internal error: network send buffer overflow");
u->nwrite += len;
}
-static void flushuser(struct user *u)
+static void flushuser(struct NetworkServerPlayerInfo *u)
{
if (u->nwrite)
{
}
}
-static void broadcast(struct user *except, int len, int activeonly)
+static void broadcast(struct NetworkServerPlayerInfo *except,
+ int len, int activeonly)
{
- struct user *u;
+ struct NetworkServerPlayerInfo *u;
realbuf[0] = realbuf[1] = realbuf[2] = 0;
realbuf[3] = (unsigned char)len;
addtobuffer(u, realbuf, 4 + len);
}
-static void sendtoone(struct user *to, int len)
+static void sendtoone(struct NetworkServerPlayerInfo *to, int len)
{
realbuf[0] = realbuf[1] = realbuf[2] = 0;
realbuf[3] = (unsigned char)len;
addtobuffer(to, realbuf, 4 + len);
}
-static void dropuser(struct user *u)
+static void dropuser(struct NetworkServerPlayerInfo *u)
{
- struct user *v, *w;
+ struct NetworkServerPlayerInfo *v;
if (options.verbose)
- printf("RND_SERVER: dropping client %d (%s)\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "dropping client %d (%s)",
+ u->number, u->player_name);
if (u == user0)
user0 = u->next;
broadcast(u, 2, 0);
}
- for (v=user0; v; v=v->next)
- {
- if (v->nextvictim == u)
- {
- for (w=NEXT(v); w!=v; w=NEXT(w))
- {
- if (w->active && w->playing)
- {
- v->nextvictim = w;
- break;
- }
- }
- if (v->nextvictim == u)
- v->nextvictim = NULL;
- }
- }
-
- if (u->isbot)
- bots--;
-
free(u);
clients--;
- if (onceonly && clients == bots)
+ if (onceonly && clients == 0)
{
if (options.verbose)
{
- printf("RND_SERVER: no clients left\n");
- printf("RND_SERVER: aborting\n");
+ Error(ERR_NETWORK_SERVER, "no clients left");
+ Error(ERR_NETWORK_SERVER, "aborting");
}
exit(0);
}
-
- if (clients == 0)
- {
- mode = -1;
- levelnr = 5;
- timetoplay = 0;
- }
}
static void new_connect(int fd)
{
- struct user *u, *v;
+ struct NetworkServerPlayerInfo *u, *v;
unsigned char nxn;
- u = checked_malloc(sizeof (struct user));
+ u = checked_malloc(sizeof (struct NetworkServerPlayerInfo));
u->fd = fd;
- u->nick[0] = 0;
+ u->player_name[0] = 0;
u->next = user0;
- u->nextvictim = NULL;
u->active = 0;
u->nread = 0;
u->nwrite = 0;
- u->playing = 0;
- u->isbot = 0;
u->introduced = 0;
- u->games = 0;
u->action = 0;
- u->action_received = 0;
+ u->action_received = FALSE;
user0 = u;
u->number = nxn;
if (options.verbose)
- printf("RND_SERVER: client %d connecting from %s\n", nxn, inet_ntoa(saddr.sin_addr));
+ Error(ERR_NETWORK_SERVER, "client %d connecting from %s",
+ nxn, inet_ntoa(saddr.sin_addr));
clients++;
buf[0] = 0;
sendtoone(u, 3);
}
-static void Handle_OP_PROTOCOL_VERSION(struct user *u, unsigned int len)
+static void Handle_OP_PROTOCOL_VERSION(struct NetworkServerPlayerInfo *u,
+ unsigned int len)
{
- if (len != 5 || buf[2] != PROT_VERS_1 || buf[3] != PROT_VERS_2)
+ if (len != 5 || buf[2] != PROTOCOL_VERSION_1 || buf[3] != PROTOCOL_VERSION_2)
{
if (options.verbose)
- printf("RND_SERVER: client %d (%s) has wrong protocol version %d.%d.%d\n", u->number, u->nick, buf[2], buf[3], buf[4]);
+ Error(ERR_NETWORK_SERVER,
+ "client %d (%s) has wrong protocol version %d.%d.%d",
+ u->number, u->player_name, buf[2], buf[3], buf[4]);
buf[0] = 0;
- buf[1] = OP_BADVERS;
- buf[2] = PROT_VERS_1;
- buf[3] = PROT_VERS_2;
- buf[4] = PROT_VERS_3;
+ buf[1] = OP_BAD_PROTOCOL_VERSION;
+ buf[2] = PROTOCOL_VERSION_1;
+ buf[3] = PROTOCOL_VERSION_2;
+ buf[4] = PROTOCOL_VERSION_3;
sendtoone(u, 5);
flushuser(u);
else
{
if (options.verbose)
- printf("RND_SERVER: client %d (%s) uses protocol version %d.%d.%d\n", u->number, u->nick, buf[2], buf[3], buf[4]);
+ Error(ERR_NETWORK_SERVER,
+ "client %d (%s) uses protocol version %d.%d.%d",
+ u->number, u->player_name, buf[2], buf[3], buf[4]);
}
}
-static void Handle_OP_NUMBER_WANTED(struct user *u)
+static void Handle_OP_NUMBER_WANTED(struct NetworkServerPlayerInfo *u)
{
- struct user *v;
+ struct NetworkServerPlayerInfo *v;
int client_nr = u->number;
int nr_wanted = buf[2];
int nr_is_free = 1;
if (options.verbose)
- printf("RND_SERVER: client %d (%s) wants to switch to # %d\n",
- u->number, u->nick, nr_wanted);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) wants to switch to # %d",
+ u->number, u->player_name, nr_wanted);
for (v=user0; v; v=v->next)
{
if (options.verbose)
{
if (nr_is_free)
- printf("RND_SERVER: client %d (%s) switches to # %d\n",
- u->number, u->nick, nr_wanted);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) switches to # %d",
+ u->number, u->player_name, nr_wanted);
else if (u->number == nr_wanted)
- printf("RND_SERVER: client %d (%s) still has # %d\n",
- u->number, u->nick, nr_wanted);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) still has # %d",
+ u->number, u->player_name, nr_wanted);
else
- printf("RND_SERVER: client %d (%s) cannot switch (client %d still exists)\n",
- u->number, u->nick, nr_wanted);
+ Error(ERR_NETWORK_SERVER,
+ "client %d (%s) cannot switch (client %d still exists)",
+ u->number, u->player_name, nr_wanted);
}
if (nr_is_free)
broadcast(NULL, 4, 0);
}
-static void Handle_OP_NICKNAME(struct user *u, unsigned int len)
+static void Handle_OP_PLAYER_NAME(struct NetworkServerPlayerInfo *u,
+ unsigned int len)
{
- struct user *v;
+ struct NetworkServerPlayerInfo *v;
int i;
if (len>16)
len=16;
- memcpy(u->nick, &buf[2], len-2);
- u->nick[len-2] = 0;
+ memcpy(u->player_name, &buf[2], len-2);
+ u->player_name[len-2] = 0;
for (i=0; i<len-2; i++)
{
- if (u->nick[i] < ' ' ||
- (u->nick[i] > 0x7e && u->nick[i] <= 0xa0))
+ if (u->player_name[i] < ' ' ||
+ (u->player_name[i] > 0x7e && u->player_name[i] <= 0xa0))
{
- u->nick[i] = 0;
+ u->player_name[i] = 0;
break;
}
}
}
if (options.verbose)
- printf("RND_SERVER: client %d calls itself \"%s\"\n", u->number, u->nick);
- buf[1] = OP_NICKNAME;
+ Error(ERR_NETWORK_SERVER, "client %d calls itself \"%s\"",
+ u->number, u->player_name);
+ buf[1] = OP_PLAYER_NAME;
broadcast(u, len, 0);
if (!u->introduced)
{
buf[0] = v->number;
buf[1] = OP_PLAYER_CONNECTED;
- buf[2] = (v->games >> 8);
- buf[3] = (v->games & 0xff);
- sendtoone(u, 4);
- buf[1] = OP_NICKNAME;
- memcpy(&buf[2], v->nick, 14);
- sendtoone(u, 2+strlen(v->nick));
+ sendtoone(u, 2);
+ buf[1] = OP_PLAYER_NAME;
+ memcpy(&buf[2], v->player_name, 14);
+ sendtoone(u, 2+strlen(v->player_name));
}
}
- if (levelnr != 5)
- {
- buf[0] = 0;
- buf[1] = OP_LEVEL;
- buf[2] = levelnr;
- sendtoone(u, 3);
- }
- if (mode >= 0)
- {
- buf[1] = OP_MODE;
- buf[2] = mode;
- sendtoone(u, 3);
- }
}
u->introduced = 1;
}
-static void Handle_OP_START_PLAYING(struct user *u)
+static void Handle_OP_START_PLAYING(struct NetworkServerPlayerInfo *u)
{
- struct user *v, *w;
+ struct NetworkServerPlayerInfo *v, *w;
if (options.verbose)
- printf("RND_SERVER: client %d (%s) starts game [level %d from levedir %d (%s)]\n",
- u->number, u->nick,
- (buf[2] << 8) + buf[3],
- (buf[4] << 8) + buf[5],
- &buf[6]);
- timetoplay = 0;
+ Error(ERR_NETWORK_SERVER,
+ "client %d (%s) starts game [level %d from levedir %d (%s)]",
+ u->number, u->player_name,
+ (buf[2] << 8) + buf[3],
+ (buf[4] << 8) + buf[5],
+ &buf[6]);
for (w=user0; w; w=w->next)
- {
if (w->introduced)
- {
w->active = 1;
- w->playing = 1;
- w->lines = 0;
- w->nextvictim = NULL;
- for (v=NEXT(w); v!=w; v=NEXT(v))
- {
- if (v->introduced)
- {
- w->nextvictim = v;
- break;
- }
- }
- }
- }
-
- /*
- if (paused)
- {
- paused = 0;
- buf[1] = OP_CONT;
- broadcast(NULL, 2, 0);
- }
- buf[1] = OP_START_PLAYING;
- broadcast(NULL, 2, 0);
- */
/* reset frame counter */
- frame_counter = 0;
+ ServerFrameCounter = 0;
/* reset player actions */
for (v=user0; v; v=v->next)
{
v->action = 0;
- v->action_received = 0;
+ v->action_received = FALSE;
}
broadcast(NULL, 10 + strlen(&buf[10])+1, 0);
}
-static void Handle_OP_PAUSE_PLAYING(struct user *u)
+static void Handle_OP_PAUSE_PLAYING(struct NetworkServerPlayerInfo *u)
{
if (options.verbose)
- printf("RND_SERVER: client %d (%s) pauses game\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) pauses game",
+ u->number, u->player_name);
broadcast(NULL, 2, 0);
- paused = 1;
}
-static void Handle_OP_CONTINUE_PLAYING(struct user *u)
+static void Handle_OP_CONTINUE_PLAYING(struct NetworkServerPlayerInfo *u)
{
if (options.verbose)
- printf("RND_SERVER: client %d (%s) continues game\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) continues game",
+ u->number, u->player_name);
broadcast(NULL, 2, 0);
- paused = 0;
}
-static void Handle_OP_STOP_PLAYING(struct user *u)
+static void Handle_OP_STOP_PLAYING(struct NetworkServerPlayerInfo *u)
{
if (options.verbose)
- printf("RND_SERVER: client %d (%s) stops game\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) stops game",
+ u->number, u->player_name);
broadcast(NULL, 2, 0);
}
-static void Handle_OP_MOVE_FIGURE(struct user *u)
+static void Handle_OP_MOVE_FIGURE(struct NetworkServerPlayerInfo *u)
{
- struct user *v;
+ struct NetworkServerPlayerInfo *v;
int last_client_nr = 0;
int i;
if (v->number == u->number)
{
v->action = buf[2];
- v->action_received = 1;
+ v->action_received = TRUE;
}
}
{
buf[6 + v->number-1] = v->action;
v->action = 0;
- v->action_received = 0;
+ v->action_received = FALSE;
}
- buf[2] = (unsigned char)((frame_counter >> 24) & 0xff);
- buf[3] = (unsigned char)((frame_counter >> 16) & 0xff);
- buf[4] = (unsigned char)((frame_counter >> 8) & 0xff);
- buf[5] = (unsigned char)((frame_counter >> 0) & 0xff);
+ buf[2] = (unsigned char)((ServerFrameCounter >> 24) & 0xff);
+ buf[3] = (unsigned char)((ServerFrameCounter >> 16) & 0xff);
+ buf[4] = (unsigned char)((ServerFrameCounter >> 8) & 0xff);
+ buf[5] = (unsigned char)((ServerFrameCounter >> 0) & 0xff);
broadcast(NULL, 6 + last_client_nr, 0);
- frame_counter++;
-
- /*
- if (verbose)
- printf("RND_SERVER: frame %d: client %d (%s) moves player [0x%02x]\n",
- frame_counter,
- u->number, u->nick, buf[2]);
- */
+ ServerFrameCounter++;
}
void NetworkServer(int port, int serveronly)
{
int i, sl, on;
- struct user *u, *v, *w;
+ struct NetworkServerPlayerInfo *u;
int mfd;
int r;
unsigned int len;
#endif
if (port == 0)
- port = DEFAULTPORT;
+ port = DEFAULT_SERVER_PORT;
if (!serveronly)
onceonly = 1;
if (options.verbose)
{
- printf("rocksndiamonds network server: started up, listening on port %d\n",
- port);
- printf("rocksndiamonds network server: using protocol version %d.%d.%d\n",
- PROT_VERS_1, PROT_VERS_2, PROT_VERS_3);
+ Error(ERR_NETWORK_SERVER, "started up, listening on port %d", port);
+ Error(ERR_NETWORK_SERVER, "using protocol version %d.%d.%d",
+ PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, PROTOCOL_VERSION_3);
}
while(1)
{
interrupt = 0;
- /*
- if (timetoplay && time(NULL) >= timetoplay)
- {
- buf[0] = 0;
- do_play();
- if (options.verbose)
- printf("RND_SERVER: everyone lost... restarting game\n");
- timetoplay = 0;
- }
- */
-
for (u=user0; u; u=u->next)
flushuser(u);
tv.tv_sec = 0;
tv.tv_usec = 500000;
if ((sl = select(mfd + 1, &fds, NULL, NULL, &tv)) < 0)
+ {
if (errno != EINTR)
syserr("select");
- else continue;
-
- if (sl < 0)
- continue;
+ else
+ continue;
+ }
- if (clients > 0 && clients == bots)
- {
- if (options.verbose)
- printf("RND_SERVER: only bots left... dropping all bots\n");
- while (user0)
- dropuser(user0);
+ if (sl < 0)
continue;
- }
if (sl == 0)
continue;
if (r <= 0)
{
if (options.verbose)
- printf("RND_SERVER: EOF from client %d (%s)\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "EOF from client %d (%s)",
+ u->number, u->player_name);
dropuser(u);
interrupt = 1;
break;
if (u->readbuf[0] || u->readbuf[1] || u->readbuf[2])
{
if (options.verbose)
- printf("RND_SERVER: crap from client %d (%s)\n", u->number, u->nick);
+ Error(ERR_NETWORK_SERVER, "crap from client %d (%s)",
+ u->number, u->player_name);
write(u->fd, "\033]50;kanji24\007\033#8\033(0", 19);
dropuser(u);
interrupt = 1;
memmove(u->readbuf, u->readbuf + 4 + len, u->nread);
buf[0] = u->number;
- if (!u->introduced && buf[1] != OP_NICKNAME)
+ if (!u->introduced && buf[1] != OP_PLAYER_NAME)
{
if (options.verbose)
- printf("RND_SERVER: !(client %d)->introduced && buf[1]==%d (expected OP_NICKNAME)\n", buf[0], buf[1]);
+ Error(ERR_NETWORK_SERVER, "!(client %d)->introduced && buf[1]==%d (expected OP_PLAYER_NAME)", buf[0], buf[1]);
dropuser(u);
interrupt = 1;
switch(buf[1])
{
- case OP_NICKNAME:
- Handle_OP_NICKNAME(u, len);
+ case OP_PLAYER_NAME:
+ Handle_OP_PLAYER_NAME(u, len);
break;
case OP_PROTOCOL_VERSION:
Handle_OP_MOVE_FIGURE(u);
break;
- case OP_KILL:
- for (v=user0; v; v=v->next)
- {
- if (v->number == buf[2])
- break;
- }
- if (v)
- {
- if (v->isbot)
- {
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) kills bot %d (%s)\n", u->number, u->nick, v->number, v->nick);
-
- dropuser(v);
- interrupt = 1;
- break;
- }
- else
- {
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) attempting to kill non-bot %d (%s)\n", u->number, u->nick, v->number, v->nick);
- }
- }
- break;
-
- case OP_MODE:
- mode = buf[2];
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) sets mode %d (%s)\n", u->number, u->nick, buf[2], buf[2] == 0 ? "normal" : (buf[2] == 1 ? "fun" : "unknown"));
- broadcast(NULL, 3, 0);
- break;
-
- case OP_BOT:
- if (!u->isbot)
- bots++;
- u->isbot = 1;
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) declares itself to be a bot\n", u->number, u->nick);
- break;
-
- case OP_LEVEL:
- levelnr = buf[2];
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) sets level %d\n", u->number, u->nick, buf[2]);
- broadcast(NULL, 3, 0);
- break;
-
- case OP_LOST:
- {
- struct user *won = NULL;
-
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) has lost\n", u->number, u->nick);
- u->playing = 0;
- broadcast(u, 2, 1);
- i = 0;
- for (v=user0; v; v=v->next)
- {
- if (v->nextvictim == u)
- {
- for (w=NEXT(v); w!=v; w=NEXT(w))
- {
- if (w->active && w->playing)
- {
- v->nextvictim = w;
- break;
- }
- }
- if (v->nextvictim == u)
- v->nextvictim = NULL;
- }
- }
- for (v=user0; v; v=v->next)
- {
- if (v->playing)
- {
- i++;
- won = v;
- }
- }
- if (i == 1)
- {
- buf[0] = won->number;
- buf[1] = OP_WON;
- won->games++;
- broadcast(NULL, 2, 0);
- }
- else if (i == 0)
- {
- buf[0] = u->number;
- buf[1] = OP_WON;
- u->games++;
- broadcast(NULL, 2, 0);
- }
- if (i < 2 && clients > 1)
- timetoplay = time(NULL) + 4;
- }
- break;
-
- case OP_ZERO:
- broadcast(NULL, 2, 0);
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) resets the game counters\n", u->number, u->nick);
- for (v=user0; v; v=v->next)
- v->games = 0;
- break;
-
- case OP_CLEAR:
- case OP_GROW:
- broadcast(u, 2, 1);
- break;
-
- case OP_MSG:
+ case OP_BROADCAST_MESSAGE:
buf[len] = '\0';
if (options.verbose)
- printf("RND_SERVER: client %d (%s) sends message: %s\n", u->number, u->nick, &buf[2]);
+ Error(ERR_NETWORK_SERVER, "client %d (%s) sends message: %s",
+ u->number, u->player_name, &buf[2]);
broadcast(u, len, 0);
break;
-
- case OP_LINES:
- if (len != 3)
- {
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) sends crap for an OP_LINES\n", u->number, u->nick);
-
- dropuser(u);
- interrupt = 1;
- break;
- }
- if (u->nextvictim)
- {
- if (options.verbose)
- printf("RND_SERVER: client %d (%s) sends %d %s to client %d (%s)\n", u->number, u->nick, (int)buf[2], buf[2] == 1 ? "line" : "lines", u->nextvictim->number, u->nextvictim->nick);
- sendtoone(u->nextvictim, 3);
- buf[3] = u->nextvictim->number;
- buf[1] = OP_LINESTO;
- broadcast(u->nextvictim, 4, 1);
- for (v=NEXT(u->nextvictim); v!=u->nextvictim; v=NEXT(v))
- {
- if (v->active && v != u && v->playing)
- {
- u->nextvictim = v;
- break;
- }
- }
- }
- else if (options.verbose)
- printf("RND_SERVER: client %d (%s) makes %d %s but has no victim\n", u->number, u->nick, (int)buf[2], buf[2] == 1 ? "line" : "lines");
- break;
default:
if (options.verbose)
- printf("RND_SERVER: opcode %d from client %d (%s) not understood\n", buf[0], u->number, u->nick);
+ Error(ERR_NETWORK_SERVER,
+ "unknown opcode %d from client %d (%s)",
+ buf[0], u->number, u->player_name);
}
}
}
projects / rocksndiamonds.git / blobdiff