#include <netdb.h>
#include "netserv.h"
-
-
-
-extern int verbose;
-
-extern void copydown(char *, char *, int);
-extern void fatal(char *);
-
-
+#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 level = 5;
+static int levelnr = 5;
static int mode = -1;
static int paused = 0;
static fd_set fds;
-void syserr(char *s)
+static void syserr(char *s)
{
if (!is_daemon)
fprintf(stderr, "fatal: %s failed.\n", s);
exit(1);
}
-void addtobuffer(struct user *u, unsigned char *b, int len)
+static void addtobuffer(struct user *u, unsigned char *b, int len)
{
if (u->nwrite + len >= MAX_BUFFER_SIZE)
- fatal("Internal error: send buffer overflow");
+ Error(ERR_EXIT, "internal error: network send buffer overflow");
+
memcpy(u->writbuf + u->nwrite, b, len);
u->nwrite += len;
}
-void flushuser(struct user *u)
+static void flushuser(struct user *u)
{
if (u->nwrite)
{
}
}
-void broadcast(struct user *except, int len, int activeonly)
+static void broadcast(struct user *except, int len, int activeonly)
{
struct user *u;
addtobuffer(u, realbuf, 4 + len);
}
-void sendtoone(struct user *to, int len)
+static void sendtoone(struct user *to, int len)
{
realbuf[0] = realbuf[1] = realbuf[2] = 0;
realbuf[3] = (unsigned char)len;
addtobuffer(to, realbuf, 4 + len);
}
-void dropuser(struct user *u)
+static void dropuser(struct user *u)
{
struct user *v, *w;
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: dropping client %d (%s)\n", u->number, u->nick);
if (u == user0)
if (onceonly && clients == bots)
{
- if (verbose)
+ if (options.verbose)
{
printf("RND_SERVER: no clients left\n");
printf("RND_SERVER: aborting\n");
if (clients == 0)
{
mode = -1;
- level = 5;
+ levelnr = 5;
timetoplay = 0;
}
}
-void do_play()
+static void new_connect(int fd)
+{
+ struct user *u, *v;
+ unsigned char nxn;
+
+ u = checked_malloc(sizeof (struct user));
+
+ u->fd = fd;
+ u->nick[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;
+
+ user0 = u;
+
+ nxn = 1;
+
+ again:
+ v = u->next;
+ while(v)
+ {
+ if (v->number == nxn)
+ {
+ nxn++;
+ goto again;
+ }
+ v = v->next;
+ }
+
+ u->number = nxn;
+ if (options.verbose)
+ printf("RND_SERVER: client %d connecting from %s\n", nxn, inet_ntoa(saddr.sin_addr));
+ clients++;
+
+ buf[0] = 0;
+ buf[1] = OP_YOUR_NUMBER;
+ buf[2] = u->number;
+ sendtoone(u, 3);
+}
+
+static void Handle_OP_PROTOCOL_VERSION(struct user *u, unsigned int len)
+{
+ if (len != 5 || buf[2] != PROT_VERS_1 || buf[3] != PROT_VERS_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]);
+
+ buf[0] = 0;
+ buf[1] = OP_BADVERS;
+ buf[2] = PROT_VERS_1;
+ buf[3] = PROT_VERS_2;
+ buf[4] = PROT_VERS_3;
+ sendtoone(u, 5);
+ flushuser(u);
+
+ dropuser(u);
+ interrupt = 1;
+ }
+ 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]);
+ }
+}
+
+static void Handle_OP_NUMBER_WANTED(struct user *u)
+{
+ struct user *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);
+
+ for (v=user0; v; v=v->next)
+ {
+ if (v->number == nr_wanted)
+ {
+ nr_is_free = 0;
+ break;
+ }
+ }
+
+ if (options.verbose)
+ {
+ if (nr_is_free)
+ printf("RND_SERVER: client %d (%s) switches to # %d\n",
+ u->number, u->nick, nr_wanted);
+ else if (u->number == nr_wanted)
+ printf("RND_SERVER: client %d (%s) still has # %d\n",
+ u->number, u->nick, nr_wanted);
+ else
+ printf("RND_SERVER: client %d (%s) cannot switch (client %d still exists)\n",
+ u->number, u->nick, nr_wanted);
+ }
+
+ if (nr_is_free)
+ u->number = nr_wanted;
+
+ buf[0] = client_nr;
+ buf[1] = OP_NUMBER_WANTED;
+ buf[2] = nr_wanted;
+ buf[3] = u->number;
+
+ /*
+ sendtoone(u, 4);
+ */
+
+ broadcast(NULL, 4, 0);
+}
+
+static void Handle_OP_NICKNAME(struct user *u, unsigned int len)
+{
+ struct user *v;
+ int i;
+
+ if (len>16)
+ len=16;
+ memcpy(u->nick, &buf[2], len-2);
+ u->nick[len-2] = 0;
+ for (i=0; i<len-2; i++)
+ {
+ if (u->nick[i] < ' ' ||
+ (u->nick[i] > 0x7e && u->nick[i] <= 0xa0))
+ {
+ u->nick[i] = 0;
+ break;
+ }
+ }
+
+ if (!u->introduced)
+ {
+ buf[0] = u->number;
+ buf[1] = OP_PLAYER_CONNECTED;
+ broadcast(u, 2, 0);
+ }
+
+ if (options.verbose)
+ printf("RND_SERVER: client %d calls itself \"%s\"\n", u->number, u->nick);
+ buf[1] = OP_NICKNAME;
+ broadcast(u, len, 0);
+
+ if (!u->introduced)
+ {
+ for (v=user0; v; v=v->next)
+ {
+ if (v != u && v->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));
+ }
+ }
+ 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)
{
struct user *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;
+
for (w=user0; w; w=w->next)
{
if (w->introduced)
}
broadcast(NULL, 10 + strlen(&buf[10])+1, 0);
-
}
-void new_connect(int fd)
+static void Handle_OP_PAUSE_PLAYING(struct user *u)
{
- struct user *u, *v;
- unsigned char nxn;
+ if (options.verbose)
+ printf("RND_SERVER: client %d (%s) pauses game\n", u->number, u->nick);
+ broadcast(NULL, 2, 0);
+ paused = 1;
+}
- u = malloc(sizeof (struct user));
- if (!u)
- fatal("Out of memory");
- u->fd = fd;
- u->nick[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;
+static void Handle_OP_CONTINUE_PLAYING(struct user *u)
+{
+ if (options.verbose)
+ printf("RND_SERVER: client %d (%s) continues game\n", u->number, u->nick);
+ broadcast(NULL, 2, 0);
+ paused = 0;
+}
- user0 = u;
+static void Handle_OP_STOP_PLAYING(struct user *u)
+{
+ if (options.verbose)
+ printf("RND_SERVER: client %d (%s) stops game\n", u->number, u->nick);
+ broadcast(NULL, 2, 0);
+}
- nxn = 1;
+static void Handle_OP_MOVE_FIGURE(struct user *u)
+{
+ struct user *v;
+ int last_client_nr = 0;
+ int i;
-again:
- v = u->next;
- while(v)
+ /* store player action */
+ for (v=user0; v; v=v->next)
{
- if (v->number == nxn)
+ if (v->number == u->number)
{
- nxn++;
- goto again;
+ v->action = buf[2];
+ v->action_received = 1;
}
- v = v->next;
}
- u->number = nxn;
- if (verbose)
- printf("RND_SERVER: client %d connecting from %s\n", nxn, inet_ntoa(saddr.sin_addr));
- clients++;
+ /* check if server received action from each player */
+ for (v=user0; v; v=v->next)
+ {
+ if (!v->action_received)
+ return;
- buf[0] = 0;
- buf[1] = OP_YOUR_NUMBER;
- buf[2] = u->number;
- sendtoone(u, 3);
+ if (v->number > last_client_nr)
+ last_client_nr = v->number;
+ }
+
+ /* initialize all player actions to zero */
+ for (i=0; i<last_client_nr; i++)
+ buf[6 + i] = 0;
+
+ /* broadcast actions of all players to all players */
+ for (v=user0; v; v=v->next)
+ {
+ buf[6 + v->number-1] = v->action;
+ v->action = 0;
+ v->action_received = 0;
+ }
+
+ 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);
+
+ 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]);
+ */
}
-void NetworkServer(int port, int onceonly)
+void NetworkServer(int port, int serveronly)
{
int i, sl, on;
struct user *u, *v, *w;
if (port == 0)
port = DEFAULTPORT;
+ if (!serveronly)
+ onceonly = 1;
+
if ((tcpproto = getprotobyname("tcp")) != NULL)
tcp = tcpproto->p_proto;
if (is_daemon)
{
/* become a daemon, breaking all ties with the controlling terminal */
- verbose = 0;
+ options.verbose = 0;
for (i=0; i<255; i++)
{
if (i != lfd)
close(i);
}
+
if (fork())
exit(0);
setsid();
if (fork())
exit(0);
chdir("/");
+
/* open a fake stdin, stdout, stderr, just in case */
open("/dev/null", O_RDONLY);
open("/dev/null", O_WRONLY);
open("/dev/null", O_WRONLY);
}
- if (verbose)
+ if (options.verbose)
{
printf("rocksndiamonds network server: started up, listening on port %d\n",
port);
{
interrupt = 0;
+ /*
if (timetoplay && time(NULL) >= timetoplay)
{
buf[0] = 0;
do_play();
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: everyone lost... restarting game\n");
timetoplay = 0;
}
+ */
for (u=user0; u; u=u->next)
flushuser(u);
if (clients > 0 && clients == bots)
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: only bots left... dropping all bots\n");
while (user0)
dropuser(user0);
r = read(u->fd, u->readbuf + u->nread, MAX_BUFFER_SIZE - u->nread);
if (r <= 0)
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: EOF from client %d (%s)\n", u->number, u->nick);
dropuser(u);
interrupt = 1;
len = u->readbuf[3];
if (u->readbuf[0] || u->readbuf[1] || u->readbuf[2])
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: crap from client %d (%s)\n", u->number, u->nick);
write(u->fd, "\033]50;kanji24\007\033#8\033(0", 19);
dropuser(u);
}
memcpy(buf, &u->readbuf[4], len);
u->nread -= 4 + len;
- copydown(u->readbuf, u->readbuf + 4 + len, u->nread);
+ memmove(u->readbuf, u->readbuf + 4 + len, u->nread);
buf[0] = u->number;
if (!u->introduced && buf[1] != OP_NICKNAME)
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: !(client %d)->introduced && buf[1]==%d (expected OP_NICKNAME)\n", buf[0], buf[1]);
dropuser(u);
switch(buf[1])
{
case OP_NICKNAME:
- if (len>16)
- len=16;
- memcpy(u->nick, &buf[2], len-2);
- u->nick[len-2] = 0;
- for (i=0; i<len-2; i++)
- {
- if (u->nick[i] < ' ' ||
- (u->nick[i] > 0x7e && u->nick[i] <= 0xa0))
- {
- u->nick[i] = 0;
- break;
- }
- }
+ Handle_OP_NICKNAME(u, len);
+ break;
- if (!u->introduced)
- {
- buf[0] = u->number;
- buf[1] = OP_PLAYER_CONNECTED;
- broadcast(u, 2, 0);
- }
-
- if (verbose)
- printf("RND_SERVER: client %d calls itself \"%s\"\n", u->number, u->nick);
- buf[1] = OP_NICKNAME;
- broadcast(u, len, 0);
+ case OP_PROTOCOL_VERSION:
+ Handle_OP_PROTOCOL_VERSION(u, len);
+ break;
- if (!u->introduced)
- {
- for (v=user0; v; v=v->next)
- {
- if (v != u && v->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));
- }
- }
- if (level != 5)
- {
- buf[0] = 0;
- buf[1] = OP_LEVEL;
- buf[2] = level;
- sendtoone(u, 3);
- }
- if (mode >= 0)
- {
- buf[1] = OP_MODE;
- buf[2] = mode;
- sendtoone(u, 3);
- }
- }
+ case OP_NUMBER_WANTED:
+ Handle_OP_NUMBER_WANTED(u);
+ break;
+
+ case OP_START_PLAYING:
+ Handle_OP_START_PLAYING(u);
+ break;
+
+ case OP_PAUSE_PLAYING:
+ Handle_OP_PAUSE_PLAYING(u);
+ break;
+
+ case OP_CONTINUE_PLAYING:
+ Handle_OP_CONTINUE_PLAYING(u);
+ break;
+
+ case OP_STOP_PLAYING:
+ Handle_OP_STOP_PLAYING(u);
+ break;
- u->introduced = 1;
+ case OP_MOVE_FIGURE:
+ Handle_OP_MOVE_FIGURE(u);
break;
case OP_KILL:
{
if (v->isbot)
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: client %d (%s) kills bot %d (%s)\n", u->number, u->nick, v->number, v->nick);
dropuser(v);
}
else
{
- if (verbose)
+ 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_START_PLAYING:
- if (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;
- do_play();
- break;
-
- case OP_MOVE_FIGURE:
- {
- int actions_complete = 1;
- int last_client_nr = 0;
-
- /* store player action */
- for (v=user0; v; v=v->next)
- {
- if (v->number == u->number)
- {
- v->action = buf[2];
- v->action_received = 1;
- }
- }
-
- /* check if server received action from each player */
- for (v=user0; v; v=v->next)
- {
- if (!v->action_received)
- {
- actions_complete = 0;
- break;
- }
- }
-
- if (!actions_complete)
- break;
-
- /* broadcast actions of all players to all players */
- for (v=user0; v; v=v->next)
- {
- buf[6 + v->number-1] = v->action;
- v->action = 0;
- v->action_received = 0;
-
- if (v->number > last_client_nr)
- last_client_nr = v->number;
- }
-
- 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);
-
- 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]);
- */
-
- break;
- }
-
case OP_MODE:
mode = buf[2];
- if (verbose)
+ 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_PAUSE:
- if (verbose)
- printf("RND_SERVER: client %d (%s) pauses game\n", u->number, u->nick);
- broadcast(NULL, 2, 0);
- paused = 1;
- break;
-
- case OP_CONT:
- if (verbose)
- printf("RND_SERVER: client %d (%s) continues game\n", u->number, u->nick);
- broadcast(NULL, 2, 0);
- paused = 0;
- break;
-
case OP_BOT:
if (!u->isbot)
bots++;
u->isbot = 1;
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: client %d (%s) declares itself to be a bot\n", u->number, u->nick);
break;
case OP_LEVEL:
- level = buf[2];
- if (verbose)
+ 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;
{
struct user *won = NULL;
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: client %d (%s) has lost\n", u->number, u->nick);
u->playing = 0;
broadcast(u, 2, 1);
case OP_ZERO:
broadcast(NULL, 2, 0);
- if (verbose)
+ 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;
case OP_MSG:
buf[len] = '\0';
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: client %d (%s) sends message: %s\n", u->number, u->nick, &buf[2]);
broadcast(u, len, 0);
break;
- case OP_NUMBER_WANTED:
- {
- int nr_wanted = buf[2];
- int nr_is_free = 1;
-
- if (verbose)
- printf("RND_SERVER: client %d (%s) wants to switch to # %d\n",
- u->number, u->nick, nr_wanted);
-
- for (v=user0; v; v=v->next)
- {
- if (v->number == nr_wanted)
- {
- nr_is_free = 0;
- break;
- }
- }
-
- if (verbose)
- {
- if (nr_is_free)
- printf("RND_SERVER: client %d (%s) switches to # %d\n",
- u->number, u->nick, nr_wanted);
- else if (u->number == nr_wanted)
- printf("RND_SERVER: client %d (%s) still has # %d\n",
- u->number, u->nick, nr_wanted);
- else
- printf("RND_SERVER: client %d (%s) cannot switch (client %d still exists)\n",
- u->number, u->nick, nr_wanted);
- }
-
- if (nr_is_free)
- u->number = nr_wanted;
-
- buf[0] = 0;
- buf[1] = OP_NUMBER_WANTED;
- buf[2] = nr_wanted;
- buf[3] = u->number;
- sendtoone(u, 4);
- break;
- }
-
- case OP_PROTOCOL_VERSION:
- if (len != 5 || buf[2] != PROT_VERS_1 || buf[3] != PROT_VERS_2)
- {
- if (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]);
-
- buf[0] = 0;
- buf[1] = OP_BADVERS;
- buf[2] = PROT_VERS_1;
- buf[3] = PROT_VERS_2;
- buf[4] = PROT_VERS_3;
- sendtoone(u, 5);
- flushuser(u);
-
- dropuser(u);
- interrupt = 1;
- }
- else
- {
- if (verbose)
- printf("RND_SERVER: client %d (%s) uses protocol version %d.%d.%d\n", u->number, u->nick, buf[2], buf[3], buf[4]);
- }
- break;
-
case OP_LINES:
if (len != 3)
{
- if (verbose)
+ if (options.verbose)
printf("RND_SERVER: client %d (%s) sends crap for an OP_LINES\n", u->number, u->nick);
dropuser(u);
}
if (u->nextvictim)
{
- if (verbose)
+ 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;
}
}
}
- else if (verbose)
+ 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 (verbose)
+ if (options.verbose)
printf("RND_SERVER: opcode %d from client %d (%s) not understood\n", buf[0], u->number, u->nick);
}
}
projects / rocksndiamonds.git / blobdiff