/*
SillyMUD Distribution V1.1b (c) 1993 SillyMUD Developement
See license.doc for distribution terms. SillyMUD is based on DIKUMUD
*/
#include <errno.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <netdb.h>
#include <string.h>
#include <sys/time.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/resource.h>
#include "protos.h"
#define DFLT_PORT 4000 /* default port */
#define MAX_NAME_LENGTH 15
#define MAX_HOSTNAME 256
#if 1
#define OPT_USEC 250000 /* time delay corresponding to 4 passes/sec */
#else
#if TITAN
#define OPT_USEC 125000 /* lets see if this changes the lag any */
#else
#define OPT_USEC 250000 /* time delay corresponding to 4 passes/sec */
#endif
#endif
#define STATE(d) ((d)->connected)
extern int errno;
extern char *sector_types[];
/* extern struct char_data *character_list; */
#if HASH
extern struct hash_header room_db; /* In db.c */
#else
extern struct room_data *room_db; /* In db.c */
#endif
extern int top_of_world; /* In db.c */
extern struct time_info_data time_info; /* In db.c */
extern char help[];
extern char login[];
extern char *room_bits[];
struct descriptor_data *descriptor_list, *next_to_process;
int lawful = 0; /* work like the game regulator */
int slow_death = 0; /* Shut her down, Martha, she's sucking mud */
int mudshutdown = 0; /* clean shutdown */
int reboot = 0; /* reboot the game after a shutdown */
int no_specials = 0; /* Suppress ass. of special routines */
long Uptime; /* time that the game has been up */
int pulse;
#if SITELOCK
char hostlist[MAX_BAN_HOSTS][30]; /* list of sites to ban */
int numberhosts;
#endif
int maxdesc, avail_descs;
int tics = 0; /* for extern checkpointing */
/* *********************************************************************
* main game loop and related stuff *
********************************************************************* */
int __main ()
{
return(1);
}
/* jdb code - added to try to handle all the different ways the connections
can die, and try to keep these 'invalid' sockets from getting to select
*/
int close_socket_fd( int desc)
{
struct descriptor_data *d;
extern struct descriptor_data *descriptor_list;
for (d = descriptor_list;d;d=d->next) {
if (d->descriptor == desc) {
close_socket(d);
}
}
}
int main (int argc, char **argv)
{
int port, pos=1;
char buf[512], *dir;
extern int WizLock;
#ifdef sun
struct rlimit rl;
int res;
#endif
port = DFLT_PORT;
dir = DFLT_DIR;
#ifdef sun
/*
** this block sets the max # of connections.
** # of files = 128, so #of players approx = 110
*/
res = getrlimit(RLIMIT_NOFILE, &rl);
rl.rlim_cur = 128;
res = setrlimit(RLIMIT_NOFILE, &rl);
#endif
#if DEBUG
malloc_debug(0);
#endif
while ((pos < argc) && (*(argv[pos]) == '-')) {
switch (*(argv[pos] + 1)) {
case 'l':
lawful = 1;
log("Lawful mode selected.");
break;
case 'd':
if (*(argv[pos] + 2))
dir = argv[pos] + 2;
else if (++pos < argc)
dir = argv[pos];
else {
log("Directory arg expected after option -d.");
assert(0);
}
break;
case 's':
no_specials = 1;
log("Suppressing assignment of special routines.");
break;
default:
sprintf(buf, "Unknown option -% in argument string.",
*(argv[pos] + 1));
log(buf);
break;
}
pos++;
}
if (pos < argc)
if (!isdigit(*argv[pos])) {
fprintf(stderr, "Usage: %s [-l] [-s] [-d pathname] [ port # ]\n",
argv[0]);
assert(0);
} else if ((port = atoi(argv[pos])) <= 1024) {
printf("Illegal port #\n");
assert(0);
}
Uptime = time(0);
sprintf(buf, "Running game on port %d.", port);
log(buf);
if (chdir(dir) < 0) {
perror("chdir");
assert(0);
}
sprintf(buf, "Using %s as data directory.", dir);
log(buf);
srandom(time(0));
WizLock = FALSE;
#if SITELOCK
log("Blanking denied hosts.");
for(a = 0 ; a<= MAX_BAN_HOSTS ; a++)
strcpy(hostlist[a]," \0\0\0\0");
numberhosts = 0;
#if LOCKGROVE
log("Locking out Host: oak.grove.iup.edu.");
strcpy(hostlist[0],"oak.grove.iup.edu");
numberhosts = 1;
log("Locking out Host: everest.rutgers.edu.");
strcpy(hostlist[1],"everest.rutgers.edu");
numberhosts = 2;
#endif /* LOCKGROVE */
#endif
/* close stdin */
close(0);
run_the_game(port);
return(0);
}
#define PROFILE(x)
/* Init sockets, run game, and cleanup sockets */
int run_the_game(int port)
{
int s;
PROFILE(extern etext();)
void signal_setup(void);
int load(void);
PROFILE(monstartup((int) 2, etext);)
descriptor_list = NULL;
log("Signal trapping.");
signal_setup();
log("Opening mother connection.");
s = init_socket(port);
if (lawful && load() >= 6)
{
log("System load too high at startup.");
coma(1);
}
boot_db();
log("Entering game loop.");
game_loop(s);
close_sockets(s);
PROFILE(monitor(0);)
if (reboot) {
log("Rebooting.");
assert(52); /* what's so great about HHGTTG, anyhow? */
}
log("Normal termination of game.");
}
/* Accept new connects, relay commands, and call 'heartbeat-functs' */
int game_loop(int s)
{
fd_set input_set, output_set, exc_set;
#if 0
fd_set tin, tout, tex;
fd_set mtin, mtout, mtex;
#endif
static int cap;
struct timeval last_time, now, timespent, timeout, null_time;
static struct timeval opt_time;
char comm[MAX_INPUT_LENGTH];
char promptbuf[80];
struct descriptor_data *point, *next_point;
int mask;
struct room_data *rm;
extern struct descriptor_data *descriptor_list;
extern int pulse;
extern int maxdesc;
null_time.tv_sec = 0;
null_time.tv_usec = 0;
opt_time.tv_usec = OPT_USEC; /* Init time values */
opt_time.tv_sec = 0;
gettimeofday(&last_time, (struct timeval *) 0);
maxdesc = s;
/* !! Change if more needed !! */
avail_descs = getdtablesize() -2;
mask = sigmask(SIGUSR1) | sigmask(SIGUSR2) | sigmask(SIGINT) |
sigmask(SIGPIPE) | sigmask(SIGALRM) | sigmask(SIGTERM) |
sigmask(SIGURG) | sigmask(SIGXCPU) | sigmask(SIGHUP);
/* Main loop */
while (!mudshutdown) {
/* Check what's happening out there */
FD_ZERO(&input_set);
FD_ZERO(&output_set);
FD_ZERO(&exc_set);
FD_SET(s, &input_set);
#if TITAN
maxdesc = 0;
if (cap < 20)
cap = 20;
for (point = descriptor_list; point; point = point->next) {
if (point->descriptor <= cap && point->descriptor >= cap-20) {
FD_SET(point->descriptor, &input_set);
FD_SET(point->descriptor, &exc_set);
FD_SET(point->descriptor, &output_set);
}
if (maxdesc < point->descriptor)
maxdesc = point->descriptor;
}
if (cap > maxdesc)
cap = 0;
else
cap += 20;
#else
for (point = descriptor_list; point; point = point->next) {
FD_SET(point->descriptor, &input_set);
FD_SET(point->descriptor, &exc_set);
FD_SET(point->descriptor, &output_set);
if (maxdesc < point->descriptor)
maxdesc = point->descriptor;
}
#endif
/* check out the time */
gettimeofday(&now, (struct timeval *) 0);
timespent = timediff(&now, &last_time);
timeout = timediff(&opt_time, ×pent);
last_time.tv_sec = now.tv_sec + timeout.tv_sec;
last_time.tv_usec = now.tv_usec + timeout.tv_usec;
if (last_time.tv_usec >= 1000000) {
last_time.tv_usec -= 1000000;
last_time.tv_sec++;
}
sigsetmask(mask);
if (select(maxdesc + 1, &input_set, &output_set, &exc_set, &null_time)
< 0) {
perror("Select poll");
/* one of the descriptors is broken... */
for (point = descriptor_list; point; point = next_point) {
next_point = point->next;
write_to_descriptor(point->descriptor, "\n\r");
}
}
if (select(0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0, &timeout) < 0) {
perror("Select sleep");
/*assert(0);*/
}
sigsetmask(0);
/* Respond to whatever might be happening */
/* New connection? */
if (FD_ISSET(s, &input_set))
if (new_descriptor(s) < 0) {
perror("New connection");
}
/* kick out the freaky folks */
for (point = descriptor_list; point; point = next_point) {
next_point = point->next;
if (FD_ISSET(point->descriptor, &exc_set)) {
FD_CLR(point->descriptor, &input_set);
FD_CLR(point->descriptor, &output_set);
close_socket(point);
}
}
for (point = descriptor_list; point; point = next_point) {
next_point = point->next;
if (FD_ISSET(point->descriptor, &input_set))
if (process_input(point) < 0)
close_socket(point);
}
/* process_commands; */
for (point = descriptor_list; point; point = next_to_process){
next_to_process = point->next;
if ((--(point->wait) <= 0) && get_from_q(&point->input, comm)) {
if (point->character && point->connected == CON_PLYNG &&
point->character->specials.was_in_room != NOWHERE) {
point->character->specials.was_in_room = NOWHERE;
act("$n has returned.", TRUE, point->character, 0, 0, TO_ROOM);
}
point->wait = 1;
if (point->character)
point->character->specials.timer = 0;
point->prompt_mode = 1;
if (point->str)
string_add(point, comm);
else if (!point->connected) {
if (point->showstr_point)
show_string(point, comm);
else
command_interpreter(point->character, comm);
}
else if(point->connected == CON_EDITING)
RoomEdit(point->character, comm);
else
nanny(point, comm);
}
}
/* either they are out of the game */
/* or they want a prompt. */
for (point = descriptor_list; point; point = next_point) {
next_point = point->next;
if (FD_ISSET(point->descriptor, &output_set) && point->output.head)
if (process_output(point) < 0)
close_socket(point);
else
point->prompt_mode = 1;
}
/* give the people some prompts */
for (point = descriptor_list; point; point = point->next)
if (point->prompt_mode) {
if (point->str)
write_to_descriptor(point->descriptor, "-> ");
else if (!point->connected)
if (point->showstr_point)
write_to_descriptor(point->descriptor,
"[Return to continue/Q to quit]");
else {
struct char_data *ch;
ch = point->character;
if(point->character->term == VT100) {
int update = 0;
if(GET_MOVE(ch) != ch->last.move) {
SET_BIT(update, INFO_MOVE);
ch->last.move = GET_MOVE(ch);
}
if(GET_MAX_MOVE(ch) != ch->last.mmove) {
SET_BIT(update, INFO_MOVE);
ch->last.mmove = GET_MAX_MOVE(ch);
}
if(GET_HIT(ch) != ch->last.hit) {
SET_BIT(update, INFO_HP);
ch->last.hit = GET_HIT(ch);
}
if(GET_MAX_HIT(ch) != ch->last.mhit) {
SET_BIT(update, INFO_HP);
ch->last.mhit = GET_MAX_HIT(ch);
}
if(GET_MANA(ch) != ch->last.mana) {
SET_BIT(update, INFO_MANA);
ch->last.mana = GET_MANA(ch);
}
if(GET_MAX_MANA(ch) != ch->last.mmana) {
SET_BIT(update, INFO_MANA);
ch->last.mmana = GET_MAX_MANA(ch);
}
if(GET_GOLD(ch) != ch->last.gold) {
SET_BIT(update, INFO_GOLD);
ch->last.gold = GET_GOLD(ch);
}
if(GET_EXP(ch) != ch->last.exp) {
SET_BIT(update, INFO_EXP);
ch->last.exp = GET_EXP(ch);
}
if(update)
UpdateScreen(ch, update);
}
if (point->character->term != VT100) {
if (IS_IMMORTAL(point->character)) {
rm = real_roomp(point->character->in_room);
if (!rm) {
char_to_room(point->character, 0);
rm = real_roomp(point->character->in_room);
}
if(IS_SET(ch->specials.prompt, PROMPT_R)) {
sprintf(promptbuf,"<Rm: %d ", rm->number);
write_to_descriptor(point->descriptor, promptbuf);
}
if(IS_SET(ch->specials.prompt, PROMPT_S)) {
sprinttype(rm->sector_type,sector_types,promptbuf);
write_to_descriptor(point->descriptor, promptbuf);
write_to_descriptor(point->descriptor, " ");
}
if(IS_SET(ch->specials.prompt, PROMPT_F)) {
sprintbit((unsigned long)rm->room_flags,room_bits,promptbuf);
write_to_descriptor(point->descriptor, promptbuf);
}
sprintf(promptbuf, "> ");
write_to_descriptor(point->descriptor, promptbuf);
} else {
if(IS_SET(ch->specials.prompt, PROMPT_H)) {
sprintf(promptbuf,"H:%d ",
point->character->points.hit);
write_to_descriptor(point->descriptor, promptbuf);
}
if(IS_SET(ch->specials.prompt, PROMPT_M)) {
sprintf(promptbuf,"M:%d ",
point->character->points.mana);
write_to_descriptor(point->descriptor, promptbuf);
}
if(IS_SET(ch->specials.prompt, PROMPT_V)) {
sprintf(promptbuf,"V:%d ",
point->character->points.move);
write_to_descriptor(point->descriptor, promptbuf);
}
sprintf(promptbuf, "> ");
write_to_descriptor(point->descriptor, promptbuf);
}
} else {
sprintf(promptbuf, "> ");
write_to_descriptor(point->descriptor, promptbuf);
}
}
point->prompt_mode = 0;
}
/* handle heartbeat stuff */
/* Note: pulse now changes every 1/4 sec */
pulse++;
if (!(pulse % PULSE_ZONE)) {
zone_update();
if (lawful)
gr(s);
}
if (!(pulse % PULSE_RIVER)) {
RiverPulseStuff(pulse);
}
if (!(pulse % PULSE_TELEPORT)) {
TeleportPulseStuff(pulse);
}
if (!(pulse % PULSE_VIOLENCE))
perform_violence( pulse );
if (!(pulse % (SECS_PER_MUD_HOUR*4))){
weather_and_time(1);
affect_update(pulse); /* things have been sped up by combining */
if ( time_info.hours == 1 )
update_time();
}
if (pulse >= 2400) {
pulse = 0;
if (lawful)
night_watchman();
check_reboot();
}
tics++; /* tics since last checkpoint signal */
}
}
/* ******************************************************************
* general utility stuff (for local use) *
****************************************************************** */
int get_from_q(struct txt_q *queue, char *dest)
{
struct txt_block *tmp;
/* Q empty? */
if (!queue->head)
return(0);
if (!dest) {
log_sev("Sending message to null destination.", 5);
return(0);
}
tmp = queue->head;
if (dest && queue->head->text) {
strcpy(dest, queue->head->text);
}
queue->head = queue->head->next;
free(tmp->text);
free(tmp);
return(1);
}
void write_to_q(char *txt, struct txt_q *queue)
{
struct txt_block *new;
int strl;
if (!queue) {
log("Output message to non-existant queue");
return;
}
CREATE(new, struct txt_block, 1);
strl = strlen(txt);
if (strl < 0 || strl > 15000) {
log("strlen returned bogus length in write_to_q");
free(new);
return;
}
#if 0 /* Changed for test */
CREATE(new->text, char, strl+1);
strcpy(new->text, txt);
#else
new->text = (char *)strdup(txt);
#endif
new->next = NULL;
/* Q empty? */
if (!queue->head) {
queue->head = queue->tail = new;
} else {
queue->tail->next = new;
queue->tail = new;
}
}
struct timeval timediff(struct timeval *a, struct timeval *b)
{
struct timeval rslt, tmp;
tmp = *a;
if ((rslt.tv_usec = tmp.tv_usec - b->tv_usec) < 0)
{
rslt.tv_usec += 1000000;
--(tmp.tv_sec);
}
if ((rslt.tv_sec = tmp.tv_sec - b->tv_sec) < 0)
{
rslt.tv_usec = 0;
rslt.tv_sec =0;
}
return(rslt);
}
/* Empty the queues before closing connection */
void flush_queues(struct descriptor_data *d)
{
char dummy[MAX_STRING_LENGTH];
while (get_from_q(&d->output, dummy));
while (get_from_q(&d->input, dummy));
}
/* ******************************************************************
* socket handling *
****************************************************************** */
int init_socket(int port)
{
int s;
char *opt;
char hostname[MAX_HOSTNAME+1];
struct sockaddr_in sa;
struct hostent *hp;
struct linger ld;
bzero(&sa, sizeof(struct sockaddr_in));
gethostname(hostname, MAX_HOSTNAME);
hp = gethostbyname(hostname);
if (hp == NULL) {
perror("gethostbyname");
assert(0);
}
sa.sin_family = hp->h_addrtype;
sa.sin_port = htons(port);
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
perror("Init-socket");
assert(0);
}
if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR,
(char *) &opt, sizeof (opt)) < 0) {
perror ("setsockopt REUSEADDR");
exit (1);
}
ld.l_onoff = 1;
ld.l_linger = 100;
if (setsockopt(s, SOL_SOCKET, SO_LINGER, &ld, sizeof(ld)) < 0) {
perror("setsockopt LINGER");
assert(0);
}
if (bind(s, &sa, sizeof(sa), 0) < 0) {
perror("bind");
exit(0);
}
listen(s, 5);
return(s);
}
int new_connection(int s)
{
struct sockaddr_in isa;
#ifdef sun
struct sockaddr peer;
#endif
int i;
int t;
char buf[100];
i = sizeof(isa);
#ifdef 0
getsockname(s, &isa, &i);
#endif
if ((t = accept(s, (struct sockaddr *)&isa, &i)) < 0){
perror("Accept");
return(-1);
}
nonblock(t);
#if 0
#ifdef sun
i = sizeof(peer);
if (!getpeername(t, &peer, &i)) {
if (i > 0) {
*(peer.sa_data + 49) = '\0';
sprintf(buf, "New connection from addr %s.", peer.sa_data);
log(buf);
}
}
#endif
#endif
return(t);
}
/* print an internet host address prettily */
static void printhost(addr, buf)
struct in_addr *addr;
char *buf;
{
struct hostent *h;
char *s;
h = gethostbyaddr(addr, sizeof(*addr),AF_INET);
s = (h==NULL) ? NULL : h->h_name;
if (s) {
strcpy(buf, s);
} else {
strcpy(buf, (char *)inet_ntoa(addr));
}
}
/* print an internet host address prettily */
static void printhostaddr(addr, buf)
struct in_addr *addr;
char *buf;
{
struct hostent *h;
char *s;
h = gethostbyaddr(addr, sizeof(*addr),AF_INET);
s = (h==NULL) ? "1.1.1.1" : h->h_name;
strcpy(buf, s);
}
int new_descriptor(int s)
{
int desc;
struct descriptor_data *newd;
int size;
#ifdef sun
struct hostent *from;
struct sockaddr peer;
#endif
struct sockaddr_in sock;
char buf[200];
if ((desc = new_connection(s)) < 0)
return (-1);
if ((desc + 1) >= 64) {
struct descriptor_data *d;
write_to_descriptor(desc, "Sorry.. The game is full. Try again later\n\r");
close(desc);
for (d = descriptor_list; d; d = d->next) {
if (!d->character)
close_socket(d);
}
return(0);
}
else
if (desc > maxdesc)
maxdesc = desc;
CREATE(newd, struct descriptor_data, 1);
*newd->host = '\0';
/* find info */
size = sizeof(sock);
if (getpeername(desc, (struct sockaddr *) &sock, &size) < 0) {
perror("getpeername");
*newd->host = '\0';
}
if(*newd->host == '\0') {
#ifndef sun
if ((long) strncpy(newd->host, inet_ntoa(sock.sin_addr), 49) > 0) {
*(newd->host + 49) = '\0';
sprintf(buf, "New connection from addr %s: %d: %d", newd->host, desc, maxdesc);
log_sev(buf,3);
}
#else
strcpy(newd->host, (char *)inet_ntoa(&sock.sin_addr));
sprintf(buf, "New connection from addr %s: %d: %d", newd->host, desc, maxdesc);
log_sev(buf,3);
#endif
}
/* init desc data */
newd->descriptor = desc;
newd->connected = CON_NME;
newd->wait = 1;
newd->prompt_mode = 0;
*newd->buf = '\0';
newd->str = 0;
newd->showstr_head = 0;
newd->showstr_point = 0;
*newd->last_input= '\0';
newd->output.head = NULL;
newd->input.head = NULL;
newd->next = descriptor_list;
newd->character = 0;
newd->original = 0;
newd->snoop.snooping = 0;
newd->snoop.snoop_by = 0;
/* prepend to list */
descriptor_list = newd;
SEND_TO_Q(login, newd);
SEND_TO_Q("What is thy name? ", newd);
return(0);
}
int process_output(struct descriptor_data *t)
{
char i[MAX_STRING_LENGTH + MAX_STRING_LENGTH];
if (!t->prompt_mode && !t->connected)
if (write_to_descriptor(t->descriptor, "\n\r") < 0)
return(-1);
/* Cycle thru output queue */
while (get_from_q(&t->output, i)) {
if ((t->snoop.snoop_by) && (t->snoop.snoop_by->desc)) {
write_to_q("% ",&t->snoop.snoop_by->desc->output);
write_to_q(i,&t->snoop.snoop_by->desc->output);
}
if (write_to_descriptor(t->descriptor, i))
return(-1);
}
if (!t->connected && !(t->character && !IS_NPC(t->character) &&
IS_SET(t->character->specials.act, PLR_COMPACT)))
if (write_to_descriptor(t->descriptor, "\n\r") < 0)
return(-1);
return(1);
}
int write_to_descriptor(int desc, char *txt)
{
int sofar, thisround, total;
total = strlen(txt);
sofar = 0;
do {
thisround = write(desc, txt + sofar, total - sofar);
if (thisround < 0) {
if (errno == EWOULDBLOCK)
break;
perror("Write to socket");
close_socket_fd(desc);
return(-1);
}
sofar += thisround;
}
while (sofar < total);
return(0);
}
int process_input(struct descriptor_data *t)
{
int sofar, thisround, begin, squelch, i, k, flag;
char tmp[MAX_INPUT_LENGTH+2], buffer[MAX_INPUT_LENGTH + 60];
sofar = 0;
flag = 0;
begin = strlen(t->buf);
/* Read in some stuff */
do {
if ((thisround = read(t->descriptor, t->buf + begin + sofar,
MAX_STRING_LENGTH - (begin + sofar) - 1)) > 0) {
sofar += thisround;
} else {
if (thisround < 0) {
if (errno != EWOULDBLOCK) {
perror("Read1 - ERROR");
return(-1);
} else {
break;
}
} else {
log("EOF encountered on socket read.");
return(-1);
}
}
} while (!ISNEWL(*(t->buf + begin + sofar - 1)));
*(t->buf + begin + sofar) = 0;
/* if no newline is contained in input, return without proc'ing */
for (i = begin; !ISNEWL(*(t->buf + i)); i++)
if (!*(t->buf + i))
return(0);
/* input contains 1 or more newlines; process the stuff */
for (i = 0, k = 0; *(t->buf + i);) {
if (!ISNEWL(*(t->buf + i)) && !(flag=(k>=(MAX_INPUT_LENGTH - 2))))
if (*(t->buf + i) == '\b') { /* backspace */
if (k) { /* more than one char ? */
if (*(tmp + --k) == '$')
k--;
i++;
} else {
i++; /* no or just one char.. Skip backsp */
}
} else {
if (isascii(*(t->buf + i)) && isprint(*(t->buf + i))) {
/*
trans char, double for '$' (printf)
*/
if ((*(tmp + k) = *(t->buf + i)) == '$')
*(tmp + ++k) = '$';
k++;
i++;
} else {
i++;
}
} else {
*(tmp + k) = 0;
if(*tmp == '!')
strcpy(tmp,t->last_input);
else
strcpy(t->last_input,tmp);
write_to_q(tmp, &t->input);
if ((t->snoop.snoop_by) && (t->snoop.snoop_by->desc)){
write_to_q("% ",&t->snoop.snoop_by->desc->output);
write_to_q(tmp,&t->snoop.snoop_by->desc->output);
write_to_q("\n\r",&t->snoop.snoop_by->desc->output);
}
if (flag) {
sprintf(buffer,
"Line too long. Truncated to:\n\r%s\n\r", tmp);
if (write_to_descriptor(t->descriptor, buffer) < 0)
return(-1);
/* skip the rest of the line */
for (; !ISNEWL(*(t->buf + i)); i++);
}
/* find end of entry */
for (; ISNEWL(*(t->buf + i)); i++);
/* squelch the entry from the buffer */
for (squelch = 0;; squelch++)
if ((*(t->buf + squelch) =
*(t->buf + i + squelch)) == '\0')
break;
k = 0;
i = 0;
}
}
return(1);
}
void close_sockets(int s)
{
log("Closing all sockets.");
while (descriptor_list)
close_socket(descriptor_list);
close(s);
}
void close_socket(struct descriptor_data *d)
{
struct descriptor_data *tmp;
char buf[100];
struct txt_block *txt, *txt2;
void do_save(struct char_data *ch, char *argument, int cmd);
if (!d) return;
close(d->descriptor);
flush_queues(d);
if (d->descriptor == maxdesc)
--maxdesc;
/* Forget snooping */
if (d->snoop.snooping)
d->snoop.snooping->desc->snoop.snoop_by = 0;
if (d->snoop.snoop_by) {
send_to_char("Your victim is no longer among us.\n\r",d->snoop.snoop_by);
d->snoop.snoop_by->desc->snoop.snooping = 0;
}
if (d->character)
if (d->connected == CON_PLYNG) {
do_save(d->character, "", 0);
act("$n has lost $s link.", TRUE, d->character, 0, 0, TO_ROOM);
sprintf(buf, "Closing link to: %s.", GET_NAME(d->character));
log(buf);
if (IS_NPC(d->character)) { /* poly, or switched god */
if (d->character->desc)
d->character->orig = d->character->desc->original;
}
d->character->desc = 0;
d->character->invis_level = LOW_IMMORTAL;
if (!IS_AFFECTED(d->character, AFF_CHARM)) {
if (d->character->master) {
stop_follower(d->character);
}
}
} else {
if (GET_NAME(d->character)) {
sprintf(buf, "Losing player: %s.", GET_NAME(d->character));
log(buf);
}
free_char(d->character);
}
else
log("Losing descriptor without char.");
if (next_to_process == d) /* to avoid crashing the process loop */
next_to_process = next_to_process->next;
if (d == descriptor_list) /* this is the head of the list */
descriptor_list = descriptor_list->next;
else /* This is somewhere inside the list */ {
/* Locate the previous element */
for (tmp = descriptor_list; tmp && (tmp->next != d);
tmp = tmp->next);
if (tmp)
tmp->next = d->next;
else {
/* die a slow death you motherfucking piece of shit machine */
/* :-) */
}
}
#if 0
if (d->showstr_head) /* this piece of code causes core dumps on */
free(d->showstr_head); /* ardent titans */
#endif
/*
free the input and output queues.
*/
txt = d->output.head;
while(txt) {
if (txt->text) {
free(txt->text);
txt2 = txt;
txt = txt2->next;
free(txt2);
}
}
txt = d->input.head;
while(txt) {
if (txt->text) {
free(txt->next);
txt2 = txt;
txt = txt->next;
free(txt2);
}
}
free(d);
}
void nonblock(int s)
{
if (fcntl(s, F_SETFL, FNDELAY) == -1) {
perror("Noblock");
assert(0);
}
}
#define COMA_SIGN \
"\n\r\
DikuMUD is currently inactive due to excessive load on the host machine.\n\r\
Please try again later.\n\r\n\
\n\r\
Sadly,\n\r\
\n\r\
the DikuMUD system operators\n\r\n\r"
/* sleep while the load is too high */
void coma(int s)
{
fd_set input_set;
static struct timeval timeout =
{
60,
0
};
int conn;
int workhours(void);
int load(void);
log("Entering comatose state.");
sigsetmask(sigmask(SIGUSR1) | sigmask(SIGUSR2) | sigmask(SIGINT) |
sigmask(SIGPIPE) | sigmask(SIGALRM) | sigmask(SIGTERM) |
sigmask(SIGURG) | sigmask(SIGXCPU) | sigmask(SIGHUP));
while (descriptor_list)
close_socket(descriptor_list);
FD_ZERO(&input_set);
do {
FD_SET(s, &input_set);
if (select(64, &input_set, 0, 0, &timeout) < 0){
perror("coma select");
assert(0);
}
if (FD_ISSET(s, &input_set)) {
if (load() < 6){
log("Leaving coma with visitor.");
sigsetmask(0);
return;
}
if ((conn = new_connection(s)) >= 0) {
write_to_descriptor(conn, COMA_SIGN);
sleep(2);
close(conn);
}
}
tics = 1;
if (workhours()) {
log("Working hours collision during coma. Exit.");
assert(0);
}
}
while (load() >= 6);
log("Leaving coma.");
sigsetmask(0);
}
/* ****************************************************************
* Public routines for system-to-player-communication *
**************************************************************** */
void send_to_char(char *messg, struct char_data *ch)
{
if (ch)
if (ch->desc && messg)
write_to_q(messg, &ch->desc->output);
}
void save_all()
{
struct descriptor_data *i;
for (i = descriptor_list; i; i = i->next)
if (i->character)
save_char(i->character,AUTO_RENT);
}
void send_to_all(char *messg)
{
struct descriptor_data *i;
if (messg)
for (i = descriptor_list; i; i = i->next)
if (!i->connected)
write_to_q(messg, &i->output);
}
void send_to_outdoor(char *messg)
{
struct descriptor_data *i;
if (messg)
for (i = descriptor_list; i; i = i->next)
if (!i->connected)
if (OUTSIDE(i->character) )
write_to_q(messg, &i->output);
}
void send_to_desert(char *messg)
{
struct descriptor_data *i;
struct room_data *rp;
extern struct zone_data *zone_table;
if (messg) {
for (i = descriptor_list; i; i = i->next) {
if (!i->connected) {
if (OUTSIDE(i->character)) {
if ((rp = real_roomp(i->character->in_room))!=NULL) {
if (IS_SET(zone_table[rp->zone].reset_mode, ZONE_DESERT) ||
rp->sector_type == SECT_DESERT) {
write_to_q(messg, &i->output);
}
}
}
}
}
}
}
void send_to_out_other(char *messg)
{
struct descriptor_data *i;
struct room_data *rp;
extern struct zone_data *zone_table;
if (messg) {
for (i = descriptor_list; i; i = i->next) {
if (!i->connected) {
if (OUTSIDE(i->character)) {
if ((rp = real_roomp(i->character->in_room))!=NULL) {
if (!IS_SET(zone_table[rp->zone].reset_mode, ZONE_DESERT) &&
!IS_SET(zone_table[rp->zone].reset_mode, ZONE_ARCTIC) &&
rp->sector_type != SECT_DESERT) {
write_to_q(messg, &i->output);
}
}
}
}
}
}
}
void send_to_arctic(char *messg)
{
struct descriptor_data *i;
struct room_data *rp;
extern struct zone_data *zone_table;
if (messg) {
for (i = descriptor_list; i; i = i->next) {
if (!i->connected) {
if (OUTSIDE(i->character)) {
if ((rp = real_roomp(i->character->in_room))!=NULL) {
if (IS_SET(zone_table[rp->zone].reset_mode, ZONE_ARCTIC)) {
write_to_q(messg, &i->output);
}
}
}
}
}
}
}
void send_to_except(char *messg, struct char_data *ch)
{
struct descriptor_data *i;
if (messg)
for (i = descriptor_list; i; i = i->next)
if (ch->desc != i && !i->connected)
write_to_q(messg, &i->output);
}
void send_to_zone(char *messg, struct char_data *ch)
{
struct descriptor_data *i;
if (messg)
for (i = descriptor_list; i; i = i->next)
if (ch->desc != i && !i->connected)
if (real_roomp(i->character->in_room)->zone ==
real_roomp(ch->in_room)->zone)
write_to_q(messg, &i->output);
}
void send_to_room(char *messg, int room)
{
struct char_data *i;
if (messg)
for (i = real_roomp(room)->people; i; i = i->next_in_room)
if (i->desc)
write_to_q(messg, &i->desc->output);
}
void send_to_room_except(char *messg, int room, struct char_data *ch)
{
struct char_data *i;
if (messg)
for (i = real_roomp(room)->people; i; i = i->next_in_room)
if (i != ch && i->desc)
write_to_q(messg, &i->desc->output);
}
void send_to_room_except_two
(char *messg, int room, struct char_data *ch1, struct char_data *ch2)
{
struct char_data *i;
if (messg)
for (i = real_roomp(room)->people; i; i = i->next_in_room)
if (i != ch1 && i != ch2 && i->desc)
write_to_q(messg, &i->desc->output);
}
/* higher-level communication */
void act(char *str, int hide_invisible, struct char_data *ch,
struct obj_data *obj, void *vict_obj, int type)
{
register char *strp, *point, *i;
struct char_data *to;
char buf[MAX_STRING_LENGTH];
if (!str)
return;
if (!*str)
return;
if (ch->in_room <= -1)
return; /* can't do it. in room -1 */
if (type == TO_VICT)
to = (struct char_data *) vict_obj;
else if (type == TO_CHAR)
to = ch;
else
to = real_roomp(ch->in_room)->people;
for (; to; to = to->next_in_room) {
if (to->desc && ((to != ch) || (type == TO_CHAR)) &&
(CAN_SEE(to, ch) || !hide_invisible) && AWAKE(to) &&
!((type == TO_NOTVICT)&&(to==(struct char_data *) vict_obj))){
for (strp = str, point = buf;;)
if (*strp == '$') {
switch (*(++strp)) {
case 'n': i = PERS(ch, to);
break;
case 'N': i = PERS((struct char_data *) vict_obj, to);
break;
case 'm': i = HMHR(ch);
break;
case 'M': i = HMHR((struct char_data *) vict_obj);
break;
case 's': i = HSHR(ch);
break;
case 'S': i = HSHR((struct char_data *) vict_obj);
break;
case 'e': i = HSSH(ch);
break;
case 'E': i = HSSH((struct char_data *) vict_obj);
break;
case 'o': i = OBJN(obj, to);
break;
case 'O': i = OBJN((struct obj_data *) vict_obj, to);
break;
case 'p': i = OBJS(obj, to);
break;
case 'P': i = OBJS((struct obj_data *) vict_obj, to);
break;
case 'a': i = SANA(obj);
break;
case 'A': i = SANA((struct obj_data *) vict_obj);
break;
case 'T': i = (char *) vict_obj;
break;
case 'F': i = fname((char *) vict_obj);
break;
case '$': i = "$";
break;
default:
log("Illegal $-code to act():");
log(str);
break;
}
while (*point = *(i++))
++point;
++strp;
} else if (!(*(point++) = *(strp++)))
break;
*(--point) = '\n';
*(++point) = '\r';
*(++point) = '\0';
write_to_q(CAP(buf), &to->desc->output);
}
if ((type == TO_VICT) || (type == TO_CHAR))
return;
}
}
int raw_force_all( char *to_force)
{
struct descriptor_data *i;
char buf[400];
for (i = descriptor_list; i; i = i->next)
if (!i->connected) {
sprintf(buf, "The game has forced you to '%s'.\n\r", to_force);
send_to_char(buf, i->character);
command_interpreter(i->character, to_force);
}
}
#if 0
#endif
void UpdateScreen(struct char_data *ch, int update)
{
char buf[255];
int size;
size = ch->size;
if(IS_SET(update, INFO_MANA)) {
sprintf(buf, VT_CURSAVE);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 2, 7);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, " ");
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 2, 7);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, "%d(%d)", GET_MANA(ch), GET_MAX_MANA(ch));
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURREST);
write_to_descriptor(ch->desc->descriptor, buf);
}
if(IS_SET(update, INFO_MOVE)) {
sprintf(buf, VT_CURSAVE);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 3, 58);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, " ");
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 3, 58);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, "%d(%d)", GET_MOVE(ch), GET_MAX_MOVE(ch));
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURREST);
write_to_descriptor(ch->desc->descriptor, buf);
}
if(IS_SET(update, INFO_HP)) {
sprintf(buf, VT_CURSAVE);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 3, 13);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, " ");
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 3, 13);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, "%d(%d)", GET_HIT(ch), GET_MAX_HIT(ch));
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURREST);
write_to_descriptor(ch->desc->descriptor, buf);
}
if(IS_SET(update, INFO_GOLD)) {
sprintf(buf, VT_CURSAVE);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 2, 47);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, " ");
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 2, 47);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, "%d", GET_GOLD(ch));
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURREST);
write_to_descriptor(ch->desc->descriptor, buf);
}
if(IS_SET(update, INFO_EXP)) {
sprintf(buf, VT_CURSAVE);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 1, 20);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, " ");
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURSPOS, size - 1, 20);
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, "%d", GET_EXP(ch));
write_to_descriptor(ch->desc->descriptor, buf);
sprintf(buf, VT_CURREST);
write_to_descriptor(ch->desc->descriptor, buf);
}
}
void InitScreen(struct char_data *ch)
{
char buf[255];
int size;
size = ch->size;
sprintf(buf, VT_HOMECLR);
send_to_char(buf, ch);
sprintf(buf, VT_MARGSET, 0, size - 5);
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 4, 1);
send_to_char(buf, ch);
sprintf(buf, "-===========================================================================-");
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 3, 1);
send_to_char(buf, ch);
sprintf(buf, "Hit Points: ");
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 3, 40);
send_to_char(buf, ch);
sprintf(buf, "Movement Points: ");
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 2, 1);
send_to_char(buf, ch);
sprintf(buf, "Mana: ");
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 2, 40);
send_to_char(buf, ch);
sprintf(buf, "Gold: ");
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 1, 1);
send_to_char(buf, ch);
sprintf(buf, "Experience Points: ");
send_to_char(buf, ch);
ch->last.mana = GET_MANA(ch);
ch->last.mmana = GET_MAX_MANA(ch);
ch->last.hit = GET_HIT(ch);
ch->last.mhit = GET_MAX_HIT(ch);
ch->last.move = GET_MOVE(ch);
ch->last.mmove = GET_MAX_MOVE(ch);
ch->last.exp = GET_EXP(ch);
ch->last.gold = GET_GOLD(ch);
/* Update all of the info parts */
sprintf(buf, VT_CURSPOS, size - 3, 13);
send_to_char(buf, ch);
sprintf(buf, "%d(%d)", GET_HIT(ch), GET_MAX_HIT(ch));
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 3, 58);
send_to_char(buf, ch);
sprintf(buf, "%d(%d)", GET_MOVE(ch), GET_MAX_MOVE(ch));
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 2, 7);
send_to_char(buf, ch);
sprintf(buf, "%d(%d)", GET_MANA(ch), GET_MAX_MANA(ch));
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 2, 47);
send_to_char(buf, ch);
sprintf(buf, "%d", GET_GOLD(ch));
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, size - 1, 20);
send_to_char(buf, ch);
sprintf(buf, "%d", GET_EXP(ch));
send_to_char(buf, ch);
sprintf(buf, VT_CURSPOS, 0, 0);
send_to_char(buf, ch);
}