/***************************************************************************
* Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer, *
* Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe. *
* *
* Merc Diku Mud improvments copyright (C) 1992, 1993 by Michael *
* Chastain, Michael Quan, and Mitchell Tse. *
* *
* In order to use any part of this Merc Diku Mud, you must comply with *
* both the original Diku license in 'license.doc' as well the Merc *
* license in 'license.txt'. In particular, you may not remove either of *
* these copyright notices. *
* *
* Thanks to abaddon for proof-reading our comm.c and pointing out bugs. *
* Any remaining bugs are, of course, our work, not his. :) *
* *
* Much time and thought has gone into this software and you are *
* benefitting. We hope that you share your changes too. What goes *
* around, comes around. *
***************************************************************************/
/*
* This file contains all of the OS-dependent stuff:
* startup, signals, BSD sockets for tcp/ip, i/o, timing.
*
* The data flow for input is:
* Game_loop ---> Read_from_descriptor ---> Read
* Game_loop ---> Read_from_buffer
*
* The data flow for output is:
* Game_loop ---> Process_Output ---> Write_to_descriptor -> Write
*
* The OS-dependent functions are Read_from_descriptor and Write_to_descriptor.
* -- Furey 26 Jan 1993
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
/*
* Socket and TCP/IP stuff.
*/
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <arpa/telnet.h>
#include "merc.h"
const char echo_off_str [] = { IAC, WILL, TELOPT_ECHO, '\0' };
const char echo_on_str [] = { IAC, WONT, TELOPT_ECHO, '\0' };
const char go_ahead_str [] = { IAC, GA, '\0' };
/*
* Global variables.
*/
DESCRIPTOR_DATA * descriptor_free; /* Free list for descriptors */
DESCRIPTOR_DATA * descriptor_list; /* All open descriptors */
DESCRIPTOR_DATA * d_next; /* Next descriptor in loop */
FILE * fpReserve; /* Reserved file handle */
bool god; /* All new chars are gods! */
bool merc_down; /* Shutdown */
bool wizlock; /* Game is wizlocked */
char str_boot_time[MAX_INPUT_LENGTH];
time_t current_time; /* Time of this pulse */
/*
* OS-dependent local functions.
*/
void game_loop_unix args( ( int control ) );
int init_socket args( ( int port ) );
void new_descriptor args( ( int control ) );
bool read_from_descriptor args( ( DESCRIPTOR_DATA *d ) );
bool write_to_descriptor args( ( int desc, char *txt, int length ) );
/*
* Other local functions (OS-independent).
*/
bool check_parse_name args( ( char *name ) );
bool check_reconnect args( ( DESCRIPTOR_DATA *d, char *name,
bool fConn ) );
bool check_playing args( ( DESCRIPTOR_DATA *d, char *name ) );
int main args( ( int argc, char **argv ) );
void nanny args( ( DESCRIPTOR_DATA *d, char *argument ) );
bool process_output args( ( DESCRIPTOR_DATA *d, bool fPrompt ) );
void read_from_buffer args( ( DESCRIPTOR_DATA *d ) );
void stop_idling args( ( CHAR_DATA *ch ) );
int main( int argc, char **argv )
{
struct timeval now_time;
int port;
int control;
/*
* Init time.
*/
gettimeofday( &now_time, NULL );
current_time = (time_t) now_time.tv_sec;
strcpy( str_boot_time, ctime( ¤t_time ) );
/*
* Reserve one channel for our use.
*/
if ( ( fpReserve = fopen( NULL_FILE, "r" ) ) == NULL ) {
perror( NULL_FILE );
exit( 1 );
}
/*
* Get the port number.
*/
port = 4000;
if ( argc > 1 ) {
if ( !is_number( argv[1] ) ) {
fprintf( stderr, "Usage: %s [port #]\n", argv[0] );
exit( 1 );
} else if ( ( port = atoi( argv[1] ) ) <= 1024 ) {
fprintf( stderr, "Port number must be above 1024.\n" );
exit( 1 );
}
}
/*
* Run the game.
*/
control = init_socket( port );
/*
* JES: load the global lua state
*/
load_global_lua();
boot_db( );
sprintf( log_buf, "Merc is ready to rock on port %d.", port );
log_string( log_buf );
game_loop_unix( control );
close( control );
/*
* That's all, folks.
*/
log_string( "Normal termination of game." );
exit( 0 );
return 0;
}
int init_socket( int port )
{
static struct sockaddr_in sa_zero;
struct sockaddr_in sa;
int x;
int fd;
if ( ( fd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 ) {
perror( "Init_socket: socket" );
exit( 1 );
}
if ( setsockopt( fd, SOL_SOCKET, SO_REUSEADDR,
(char *) &x, sizeof(x) ) < 0 ) {
perror( "Init_socket: SO_REUSEADDR" );
close( fd );
exit( 1 );
}
#if defined(SO_DONTLINGER) && !defined(SYSV)
{
struct linger ld;
ld.l_onoff = 1;
ld.l_linger = 1000;
if ( setsockopt( fd, SOL_SOCKET, SO_DONTLINGER,
(char *) &ld, sizeof(ld) ) < 0 ) {
perror( "Init_socket: SO_DONTLINGER" );
close( fd );
exit( 1 );
}
}
#endif
sa = sa_zero;
sa.sin_family = AF_INET;
sa.sin_port = htons( port );
if ( bind( fd, (struct sockaddr *) &sa, sizeof(sa) ) < 0 ) {
perror( "Init_socket: bind" );
close( fd );
exit( 1 );
}
if ( listen( fd, 3 ) < 0 ) {
perror( "Init_socket: listen" );
close( fd );
exit( 1 );
}
return fd;
}
void game_loop_unix( int control )
{
static struct timeval null_time;
struct timeval last_time;
signal( SIGPIPE, SIG_IGN );
gettimeofday( &last_time, NULL );
current_time = (time_t) last_time.tv_sec;
/* Main loop */
while ( !merc_down ) {
fd_set in_set;
fd_set out_set;
fd_set exc_set;
DESCRIPTOR_DATA *d;
int maxdesc;
/*
* Poll all active descriptors.
*/
FD_ZERO( &in_set );
FD_ZERO( &out_set );
FD_ZERO( &exc_set );
FD_SET( control, &in_set );
maxdesc = control;
for ( d = descriptor_list; d; d = d->next ) {
maxdesc = UMAX( maxdesc, d->descriptor );
FD_SET( d->descriptor, &in_set );
FD_SET( d->descriptor, &out_set );
FD_SET( d->descriptor, &exc_set );
}
if ( select( maxdesc+1, &in_set, &out_set, &exc_set, &null_time ) < 0 ) {
perror( "Game_loop: select: poll" );
exit( 1 );
}
/*
* New connection?
*/
if ( FD_ISSET( control, &in_set ) )
new_descriptor( control );
/*
* Kick out the freaky folks.
*/
for ( d = descriptor_list; d != NULL; d = d_next ) {
d_next = d->next;
if ( FD_ISSET( d->descriptor, &exc_set ) ) {
FD_CLR( d->descriptor, &in_set );
FD_CLR( d->descriptor, &out_set );
if ( d->character )
save_char_obj( d->character );
d->outtop = 0;
close_socket( d );
}
}
/*
* Process input.
*/
for ( d = descriptor_list; d != NULL; d = d_next ) {
d_next = d->next;
d->fcommand = FALSE;
if ( FD_ISSET( d->descriptor, &in_set ) ) {
if ( d->character != NULL )
d->character->timer = 0;
if ( !read_from_descriptor( d ) ) {
FD_CLR( d->descriptor, &out_set );
if ( d->character != NULL )
save_char_obj( d->character );
d->outtop = 0;
close_socket( d );
continue;
}
}
if ( d->character != NULL && d->character->wait > 0 ) {
--d->character->wait;
continue;
}
read_from_buffer( d );
if ( d->incomm[0] != '\0' ) {
d->fcommand = TRUE;
stop_idling( d->character );
if ( d->connected == CON_PLAYING ) {
if (!alt_menu(d))
interpret( d->character, d->incomm );
} else
nanny( d, d->incomm );
d->incomm[0] = '\0';
}
}
/*
* Autonomous game motion.
*/
update_handler( );
/*
* Output.
*/
for ( d = descriptor_list; d != NULL; d = d_next ) {
d_next = d->next;
if ( ( d->fcommand || d->outtop > 0 )
&& FD_ISSET(d->descriptor, &out_set) ) {
if ( !process_output( d, TRUE ) ) {
if ( d->character != NULL )
save_char_obj( d->character );
d->outtop = 0;
close_socket( d );
}
}
}
/*
* Synchronize to a clock.
* Sleep( last_time + 1/PULSE_PER_SECOND - now ).
* Careful here of signed versus unsigned arithmetic.
*/
{
struct timeval now_time;
long secDelta;
long usecDelta;
gettimeofday( &now_time, NULL );
usecDelta = ((int) last_time.tv_usec) - ((int) now_time.tv_usec)
+ 1000000 / PULSE_PER_SECOND;
secDelta = ((int) last_time.tv_sec ) - ((int) now_time.tv_sec );
while ( usecDelta < 0 ) {
usecDelta += 1000000;
secDelta -= 1;
}
while ( usecDelta >= 1000000 ) {
usecDelta -= 1000000;
secDelta += 1;
}
if ( secDelta > 0 || ( secDelta == 0 && usecDelta > 0 ) ) {
struct timeval stall_time;
stall_time.tv_usec = usecDelta;
stall_time.tv_sec = secDelta;
if ( select( 0, NULL, NULL, NULL, &stall_time ) < 0 ) {
perror( "Game_loop: select: stall" );
exit( 1 );
}
}
}
gettimeofday( &last_time, NULL );
current_time = (time_t) last_time.tv_sec;
}
return;
}
void new_descriptor( int control )
{
static DESCRIPTOR_DATA d_zero;
char buf[MAX_STRING_LENGTH];
DESCRIPTOR_DATA *dnew;
BAN_DATA *pban;
struct sockaddr_in sock;
struct hostent *from;
int desc;
size_t size;
size = sizeof(sock);
getsockname( control, (struct sockaddr *) &sock, &size );
if ( ( desc = accept( control, (struct sockaddr *) &sock, &size) ) < 0 ) {
perror( "New_descriptor: accept" );
return;
}
#if !defined(FNDELAY)
#define FNDELAY O_NDELAY
#endif
if ( fcntl( desc, F_SETFL, FNDELAY ) == -1 ) {
perror( "New_descriptor: fcntl: FNDELAY" );
return;
}
/*
* Cons a new descriptor.
*/
if ( descriptor_free == NULL ) {
dnew = alloc_perm( sizeof(*dnew) );
} else {
dnew = descriptor_free;
descriptor_free = descriptor_free->next;
}
*dnew = d_zero;
dnew->descriptor = desc;
dnew->connected = CON_GET_NAME;
dnew->outsize = 2000;
dnew->outbuf = alloc_mem( dnew->outsize );
size = sizeof(sock);
if ( getpeername( desc, (struct sockaddr *) &sock, &size ) < 0 ) {
perror( "New_descriptor: getpeername" );
dnew->host = str_dup( "(unknown)" );
} else {
/*
* Would be nice to use inet_ntoa here but it takes a struct arg,
* which ain't very compatible between gcc and system libraries.
*/
int addr;
addr = ntohl( sock.sin_addr.s_addr );
sprintf( buf, "%d.%d.%d.%d",
( addr >> 24 ) & 0xFF, ( addr >> 16 ) & 0xFF,
( addr >> 8 ) & 0xFF, ( addr ) & 0xFF
);
sprintf( log_buf, "Sock.sinaddr: %s", buf );
log_string( log_buf );
from = gethostbyaddr( (char *) &sock.sin_addr,
sizeof(sock.sin_addr), AF_INET );
dnew->host = str_dup( from ? from->h_name : buf );
}
/*
* Swiftest: I added the following to ban sites. I don't
* endorse banning of sites, but Copper has few descriptors now
* and some people from certain sites keep abusing access by
* using automated 'autodialers' and leaving connections hanging.
*
* Furey: added suffix check by request of Nickel of HiddenWorlds.
*/
for ( pban = ban_list; pban != NULL; pban = pban->next ) {
if ( !str_suffix( pban->name, dnew->host ) ) {
write_to_descriptor( desc,
"Your site has been banned from this Mud.\r\n", 0 );
close( desc );
free_string( dnew->host );
free_mem( dnew->outbuf, dnew->outsize );
dnew->next = descriptor_free;
descriptor_free = dnew;
return;
}
}
/*
* Init descriptor data.
*/
dnew->next = descriptor_list;
descriptor_list = dnew;
/*
* Send the greeting.
*/
{
extern char * help_greeting;
if ( help_greeting[0] == '.' )
write_to_buffer( dnew, help_greeting+1, 0 );
else
write_to_buffer( dnew, help_greeting , 0 );
}
return;
}
void close_socket( DESCRIPTOR_DATA *dclose )
{
CHAR_DATA *ch;
if ( dclose->outtop > 0 )
process_output( dclose, FALSE );
if ( dclose->snoop_by != NULL ) {
write_to_buffer( dclose->snoop_by,
"Your victim has left the game.\r\n", 0 );
}
{
DESCRIPTOR_DATA *d;
for ( d = descriptor_list; d != NULL; d = d->next ) {
if ( d->snoop_by == dclose )
d->snoop_by = NULL;
}
}
if ( ( ch = dclose->character ) != NULL ) {
sprintf( log_buf, "Closing link to %s.", ch->name );
log_string( log_buf );
if ( dclose->connected == CON_PLAYING ) {
act( "$n has lost $s link.", ch, NULL, NULL, TO_ROOM );
ch->desc = NULL;
} else {
free_char( dclose->character );
}
}
if ( d_next == dclose )
d_next = d_next->next;
if ( dclose == descriptor_list ) {
descriptor_list = descriptor_list->next;
} else {
DESCRIPTOR_DATA *d;
for ( d = descriptor_list; d && d->next != dclose; d = d->next )
;
if ( d != NULL )
d->next = dclose->next;
else
bug( "Close_socket: dclose not found.", 0 );
}
close( dclose->descriptor );
free_string( dclose->host );
dclose->next = descriptor_free;
descriptor_free = dclose;
return;
}
bool read_from_descriptor( DESCRIPTOR_DATA *d )
{
int iStart;
/* Hold horses if pending command already. */
if ( d->incomm[0] != '\0' )
return TRUE;
/* Check for overflow. */
iStart = strlen(d->inbuf);
if ( iStart >= sizeof(d->inbuf) - 10 ) {
sprintf( log_buf, "%s input overflow!", d->host );
log_string( log_buf );
write_to_descriptor( d->descriptor,
"\r\n*** PUT A LID ON IT!!! ***\r\n", 0 );
return FALSE;
}
/* Snarf input. */
for ( ; ; ) {
int nRead;
nRead = read( d->descriptor, d->inbuf + iStart,
sizeof(d->inbuf) - 10 - iStart );
if ( nRead > 0 ) {
iStart += nRead;
if ( d->inbuf[iStart-1] == '\n' || d->inbuf[iStart-1] == '\r' )
break;
} else if ( nRead == 0 ) {
log_string( "EOF encountered on read." );
return FALSE;
} else if ( errno == EWOULDBLOCK )
break;
else {
perror( "Read_from_descriptor" );
return FALSE;
}
}
d->inbuf[iStart] = '\0';
return TRUE;
}
/*
* Transfer one line from input buffer to input line.
*/
void read_from_buffer( DESCRIPTOR_DATA *d )
{
int i, j, k;
/*
* Hold horses if pending command already.
*/
if ( d->incomm[0] != '\0' )
return;
/*
* Look for at least one new line.
*/
for ( i = 0; d->inbuf[i] != '\n' && d->inbuf[i] != '\r'; i++ ) {
if ( d->inbuf[i] == '\0' )
return;
}
/*
* Canonical input processing.
*/
for ( i = 0, k = 0; d->inbuf[i] != '\n' && d->inbuf[i] != '\r'; i++ ) {
if ( k >= MAX_INPUT_LENGTH - 2 ) {
write_to_descriptor( d->descriptor, "Line too long.\r\n", 0 );
/* skip the rest of the line */
for ( ; d->inbuf[i] != '\0'; i++ ) {
if ( d->inbuf[i] == '\n' || d->inbuf[i] == '\r' )
break;
}
d->inbuf[i] = '\n';
d->inbuf[i+1] = '\0';
break;
}
if ( d->inbuf[i] == '\b' && k > 0 )
--k;
else if ( isascii(d->inbuf[i]) && isprint(d->inbuf[i]) )
d->incomm[k++] = d->inbuf[i];
}
/*
* Finish off the line.
*/
if ( k == 0 )
d->incomm[k++] = ' ';
d->incomm[k] = '\0';
/*
* Deal with bozos with #repeat 1000 ...
*/
if ( k > 1 || d->incomm[0] == '!' ) {
if ( d->incomm[0] != '!' && strcmp( d->incomm, d->inlast ) ) {
d->repeat = 0;
} else {
if ( ++d->repeat >= 20 ) {
sprintf( log_buf, "%s input spamming!", d->host );
log_string( log_buf );
write_to_descriptor( d->descriptor,
"\r\n*** PUT A LID ON IT!!! ***\r\n", 0 );
strcpy( d->incomm, "quit" );
}
}
}
/*
* Do '!' substitution.
*/
if ( d->incomm[0] == '!' )
strcpy( d->incomm, d->inlast );
else
strcpy( d->inlast, d->incomm );
/*
* Shift the input buffer.
*/
while ( d->inbuf[i] == '\n' || d->inbuf[i] == '\r' )
i++;
for ( j = 0; ( d->inbuf[j] = d->inbuf[i+j] ) != '\0'; j++ )
;
return;
}
/*
* Low level output function.
*/
bool process_output( DESCRIPTOR_DATA *d, bool fPrompt )
{
extern bool merc_down;
/*
* Bust a prompt.
*/
if ( fPrompt && !merc_down && d->connected == CON_PLAYING ) {
CHAR_DATA *ch;
ch = d->original ? d->original : d->character;
if ( IS_SET(ch->act, PLR_BLANK) )
write_to_buffer( d, "\r\n", 2 );
if ( IS_SET(ch->act, PLR_PROMPT) ) {
char buf[40];
ch = d->character;
sprintf( buf, "{W<{Y%d{yhp {G%d{gap {C%d{cmv{W>{x", ch->hit, ch->mana, ch->move );
write_to_buffer ( d, buf, 0 );
}
if ( IS_SET(ch->act, PLR_TELNET_GA) )
write_to_buffer( d, go_ahead_str, 0 );
}
/*
* Short-circuit if nothing to write.
*/
if ( d->outtop == 0 )
return TRUE;
/*
* Snoop-o-rama.
*/
if ( d->snoop_by != NULL ) {
write_to_buffer( d->snoop_by, "% ", 2 );
write_to_buffer( d->snoop_by, d->outbuf, d->outtop );
}
/*
* OS-dependent output.
*/
if ( !write_to_descriptor( d->descriptor, d->outbuf, d->outtop ) ) {
d->outtop = 0;
return FALSE;
} else {
d->outtop = 0;
return TRUE;
}
}
/*
* Append onto an output buffer.
*/
void write_to_buffer( DESCRIPTOR_DATA *d, const char *txt, int length )
{
/* color conversion in lua */
char *ctxt;
ctxt = call_lua( global_L, NULL, NULL, LCALL_COLOR, "do_color", (char*)txt );
/*
* Find length in case caller didn't.
*/
//if ( length <= 0 )
length = strlen(ctxt);
/*
* Initial \r\n if needed.
*/
if ( d->outtop == 0 && !d->fcommand ) {
d->outbuf[0] = '\r';
d->outbuf[1] = '\n';
d->outtop = 2;
}
/*
* Expand the buffer as needed.
*/
while ( d->outtop + length >= d->outsize ) {
char *outbuf;
outbuf = alloc_mem( 2 * d->outsize );
strncpy( outbuf, d->outbuf, d->outtop );
free_mem( d->outbuf, d->outsize );
d->outbuf = outbuf;
d->outsize *= 2;
}
/*
* Copy.
*/
strcpy( d->outbuf + d->outtop, ctxt );
d->outtop += length;
return;
}
/*
* Lowest level output function.
* Write a block of text to the file descriptor.
* If this gives errors on very long blocks (like 'ofind all'),
* try lowering the max block size.
*/
bool write_to_descriptor( int desc, char *txt, int length )
{
int iStart;
int nWrite;
int nBlock;
if ( length <= 0 )
length = strlen(txt);
for ( iStart = 0; iStart < length; iStart += nWrite ) {
nBlock = UMIN( length - iStart, 4096 );
if ( ( nWrite = write( desc, txt + iStart, nBlock ) ) < 0 ) {
perror( "Write_to_descriptor" );
return FALSE;
}
}
return TRUE;
}
/*
* Deal with sockets that haven't logged in yet.
*/
void nanny( DESCRIPTOR_DATA *d, char *argument )
{
char buf[MAX_STRING_LENGTH];
CHAR_DATA *ch;
char *pwdnew;
char *p;
int iClass;
bool fOld;
while ( isspace(*argument) )
argument++;
ch = d->character;
switch ( d->connected ) {
default:
bug( "Nanny: bad d->connected %d.", d->connected );
close_socket( d );
return;
case CON_GET_NAME:
if ( argument[0] == '\0' ) {
close_socket( d );
return;
}
argument[0] = UPPER(argument[0]);
if ( !check_parse_name( argument ) ) {
write_to_buffer( d, "Illegal name, try another.\r\nName: ", 0 );
return;
}
fOld = load_char_obj( d, argument );
ch = d->character;
if ( IS_SET(ch->act, PLR_DENY) ) {
sprintf( log_buf, "Denying access to %s@%s.", argument, d->host );
log_string( log_buf );
write_to_buffer( d, "You are denied access.\r\n", 0 );
close_socket( d );
return;
}
if ( check_reconnect( d, argument, FALSE ) ) {
fOld = TRUE;
} else {
if ( wizlock && !IS_HERO(ch) ) {
write_to_buffer( d, "The game is wizlocked.\r\n", 0 );
close_socket( d );
return;
}
}
if ( fOld ) {
/* Old player */
write_to_buffer( d, "Found Profile yo!\r\n", 0);
write_to_buffer( d, "Password: ", 0);
write_to_buffer( d, echo_off_str, 0 );
d->connected = CON_GET_OLD_PASSWORD;
return;
} else {
/* New player */
sprintf( buf, "Did I get that right, %s (Y/N)? ", argument );
write_to_buffer( d, buf, 0 );
d->connected = CON_CONFIRM_NEW_NAME;
return;
}
break;
case CON_GET_OLD_PASSWORD:
write_to_buffer( d, "\r\n", 2 );
if ( strcmp( crypt( argument, ch->pcdata->pwd ), ch->pcdata->pwd ) ) {
write_to_buffer( d, "Wrong password.\r\n", 0 );
close_socket( d );
return;
}
write_to_buffer( d, echo_on_str, 0 );
if ( check_reconnect( d, ch->name, TRUE ) )
return;
if ( check_playing( d, ch->name ) )
return;
sprintf( log_buf, "%s@%s has connected.", ch->name, d->host );
log_string( log_buf );
if ( IS_HERO(ch) )
do_help( ch, "imotd" );
do_help( ch, "motd" );
d->connected = CON_READ_MOTD;
break;
case CON_CONFIRM_NEW_NAME:
switch ( *argument ) {
case 'y':
case 'Y':
sprintf( buf, "New character.\r\nGive me a password for %s: %s",
ch->name, echo_off_str );
write_to_buffer( d, buf, 0 );
d->connected = CON_GET_NEW_PASSWORD;
break;
case 'n':
case 'N':
write_to_buffer( d, "Ok, what IS it, then? ", 0 );
free_char( d->character );
d->character = NULL;
d->connected = CON_GET_NAME;
break;
default:
write_to_buffer( d, "Please type Yes or No? ", 0 );
break;
}
break;
case CON_GET_NEW_PASSWORD:
write_to_buffer( d, "\r\n", 2 );
if ( strlen(argument) < 5 ) {
write_to_buffer( d,
"Password must be at least five characters long.\r\nPassword: ",
0 );
return;
}
pwdnew = crypt( argument, ch->name );
for ( p = pwdnew; *p != '\0'; p++ ) {
if ( *p == '~' ) {
write_to_buffer( d,
"New password not acceptable, try again.\r\nPassword: ",
0 );
return;
}
}
free_string( ch->pcdata->pwd );
ch->pcdata->pwd = str_dup( pwdnew );
write_to_buffer( d, "Please retype password: ", 0 );
d->connected = CON_CONFIRM_NEW_PASSWORD;
break;
case CON_CONFIRM_NEW_PASSWORD:
write_to_buffer( d, "\r\n", 2 );
if ( strcmp( crypt( argument, ch->pcdata->pwd ), ch->pcdata->pwd ) ) {
write_to_buffer( d, "Passwords don't match.\r\nRetype password: ",
0 );
d->connected = CON_GET_NEW_PASSWORD;
return;
}
write_to_buffer( d, echo_on_str, 0 );
write_to_buffer( d, "What is your sex (M/F/N)? ", 0 );
d->connected = CON_GET_NEW_SEX;
break;
case CON_GET_NEW_SEX:
switch ( argument[0] ) {
case 'm':
case 'M':
ch->sex = SEX_MALE;
break;
case 'f':
case 'F':
ch->sex = SEX_FEMALE;
break;
case 'n':
case 'N':
ch->sex = SEX_NEUTRAL;
break;
default:
write_to_buffer( d, "That's not a sex.\r\nWhat IS your sex? ", 0 );
return;
}
strcpy( buf, "Select a class [" );
for ( iClass = 0; iClass < MAX_CLASS; iClass++ ) {
if ( iClass > 0 )
strcat( buf, " " );
strcat( buf, class_table[iClass].who_name );
}
strcat( buf, "]: " );
write_to_buffer( d, buf, 0 );
d->connected = CON_GET_NEW_CLASS;
break;
case CON_GET_NEW_CLASS:
for ( iClass = 0; iClass < MAX_CLASS; iClass++ ) {
if ( !str_cmp( argument, class_table[iClass].who_name ) ) {
ch->class = iClass;
break;
}
}
if ( iClass == MAX_CLASS ) {
write_to_buffer( d,
"That's not a class.\r\nWhat IS your class? ", 0 );
return;
}
sprintf( log_buf, "%s@%s new player.", ch->name, d->host );
log_string( log_buf );
write_to_buffer( d, "\r\n", 2 );
do_help( ch, "motd" );
d->connected = CON_READ_MOTD;
break;
case CON_READ_MOTD:
write_to_buffer( d,
"\r\nWelcome to Merc Diku Mud. May your visit here be ... Mercenary.\r\n",
0 );
ch->next = char_list;
char_list = ch;
d->connected = CON_PLAYING;
if ( ch->level == 0 ) {
OBJ_DATA *obj;
switch ( class_table[ch->class].attr_prime ) {
case APPLY_STR:
ch->pcdata->perm_str = 16;
break;
case APPLY_INT:
ch->pcdata->perm_int = 16;
break;
case APPLY_WIS:
ch->pcdata->perm_wis = 16;
break;
case APPLY_DEX:
ch->pcdata->perm_dex = 16;
break;
case APPLY_CON:
ch->pcdata->perm_con = 16;
break;
}
ch->level = 1;
ch->exp = 1000;
ch->hit = ch->max_hit;
ch->mana = ch->max_mana;
ch->move = ch->max_move;
sprintf( buf, "the %s",
title_table [ch->class] [ch->level]
[ch->sex == SEX_FEMALE ? 1 : 0] );
set_title( ch, buf );
obj = create_object( get_obj_index(OBJ_VNUM_SCHOOL_BANNER), 0 );
obj_to_char( obj, ch );
equip_char( ch, obj, WEAR_LIGHT );
obj = create_object( get_obj_index(OBJ_VNUM_SCHOOL_VEST), 0 );
obj_to_char( obj, ch );
equip_char( ch, obj, WEAR_BODY );
obj = create_object( get_obj_index(OBJ_VNUM_SCHOOL_SHIELD), 0 );
obj_to_char( obj, ch );
equip_char( ch, obj, WEAR_SHIELD );
obj = create_object( get_obj_index(class_table[ch->class].weapon),
0 );
obj_to_char( obj, ch );
equip_char( ch, obj, WEAR_WIELD );
char_to_room( ch, get_room_index( ROOM_VNUM_SCHOOL ) );
} else if ( ch->in_room != NULL ) {
char_to_room( ch, ch->in_room );
} else if ( IS_IMMORTAL(ch) ) {
char_to_room( ch, get_room_index( ROOM_VNUM_CHAT ) );
} else {
char_to_room( ch, get_room_index( ROOM_VNUM_TEMPLE ) );
}
act( "$n has entered the game.", ch, NULL, NULL, TO_ROOM );
do_look( ch, "auto" );
break;
}
return;
}
/*
* Parse a name for acceptability.
*/
bool check_parse_name( char *name )
{
/*
* Reserved words.
*/
if ( is_name( name, "all auto immortal self someone" ) )
return FALSE;
/*
* Length restrictions.
*/
if ( strlen(name) < 3 )
return FALSE;
if ( strlen(name) > 12 )
return FALSE;
/*
* Alphanumerics only.
* Lock out IllIll twits.
*/
{
char *pc;
bool fIll;
fIll = TRUE;
for ( pc = name; *pc != '\0'; pc++ ) {
if ( !isalpha(*pc) )
return FALSE;
if ( LOWER(*pc) != 'i' && LOWER(*pc) != 'l' )
fIll = FALSE;
}
if ( fIll )
return FALSE;
}
/*
* Prevent players from naming themselves after mobs.
*/
{
extern MOB_INDEX_DATA *mob_index_hash[MAX_KEY_HASH];
MOB_INDEX_DATA *pMobIndex;
int iHash;
for ( iHash = 0; iHash < MAX_KEY_HASH; iHash++ ) {
for ( pMobIndex = mob_index_hash[iHash];
pMobIndex != NULL;
pMobIndex = pMobIndex->next ) {
if ( is_name( name, pMobIndex->player_name ) )
return FALSE;
}
}
}
return TRUE;
}
/*
* Look for link-dead player to reconnect.
*/
bool check_reconnect( DESCRIPTOR_DATA *d, char *name, bool fConn )
{
CHAR_DATA *ch;
for ( ch = char_list; ch != NULL; ch = ch->next ) {
if ( !IS_NPC(ch)
&& ( !fConn || ch->desc == NULL )
&& !str_cmp( d->character->name, ch->name ) ) {
if ( fConn == FALSE ) {
free_string( d->character->pcdata->pwd );
d->character->pcdata->pwd = str_dup( ch->pcdata->pwd );
} else {
free_char( d->character );
d->character = ch;
ch->desc = d;
ch->timer = 0;
send_to_char( "Reconnecting.\r\n", ch );
act( "$n has reconnected.", ch, NULL, NULL, TO_ROOM );
sprintf( log_buf, "%s@%s reconnected.", ch->name, d->host );
log_string( log_buf );
d->connected = CON_PLAYING;
}
return TRUE;
}
}
return FALSE;
}
/*
* Check if already playing.
*/
bool check_playing( DESCRIPTOR_DATA *d, char *name )
{
DESCRIPTOR_DATA *dold;
for ( dold = descriptor_list; dold; dold = dold->next ) {
if ( dold != d
&& dold->character != NULL
&& dold->connected != CON_GET_NAME
&& dold->connected != CON_GET_OLD_PASSWORD
&& !str_cmp( name, dold->original
? dold->original->name : dold->character->name ) ) {
write_to_buffer( d, "Already playing.\r\nName: ", 0 );
d->connected = CON_GET_NAME;
if ( d->character != NULL ) {
free_char( d->character );
d->character = NULL;
}
return TRUE;
}
}
return FALSE;
}
void stop_idling( CHAR_DATA *ch )
{
if ( ch == NULL
|| ch->desc == NULL
|| ch->desc->connected != CON_PLAYING
|| ch->was_in_room == NULL
|| ch->in_room != get_room_index( ROOM_VNUM_LIMBO ) )
return;
ch->timer = 0;
char_from_room( ch );
char_to_room( ch, ch->was_in_room );
ch->was_in_room = NULL;
act( "$n has returned from the void.", ch, NULL, NULL, TO_ROOM );
return;
}
/*
* Write to one char.
*/
void send_to_char( const char *txt, CHAR_DATA *ch )
{
if ( txt != NULL && ch->desc != NULL )
write_to_buffer( ch->desc, txt, strlen(txt) );
return;
}
/*
* JES: sendf (printf to char) added 11/09
*/
void sendf(CHAR_DATA *ch, char *fmt, ...)
{
char buf[MAX_STRING_LENGTH];
va_list args;
va_start (args, fmt);
vsprintf (buf, fmt, args);
va_end (args);
send_to_char(buf, ch);
}
/*
* The primary output interface for formatted output.
*/
void act( const char *format, CHAR_DATA *ch, const void *arg1, const void *arg2, int type )
{
static char * const he_she [] = { "it", "he", "she" };
static char * const him_her [] = { "it", "him", "her" };
static char * const his_her [] = { "its", "his", "her" };
char buf[MAX_STRING_LENGTH];
char fname[MAX_INPUT_LENGTH];
CHAR_DATA *to;
CHAR_DATA *vch = (CHAR_DATA *) arg2;
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
const char *str;
const char *i;
char *point;
/*
* Discard null and zero-length messages.
*/
if ( format == NULL || format[0] == '\0' )
return;
to = ch->in_room->people;
if ( type == TO_VICT ) {
if ( vch == NULL ) {
bug( "Act: null vch with TO_VICT.", 0 );
return;
}
to = vch->in_room->people;
}
for ( ; to != NULL; to = to->next_in_room ) {
if ( to->desc == NULL || !IS_AWAKE(to) )
continue;
if ( type == TO_CHAR && to != ch )
continue;
if ( type == TO_VICT && ( to != vch || to == ch ) )
continue;
if ( type == TO_ROOM && to == ch )
continue;
if ( type == TO_NOTVICT && (to == ch || to == vch) )
continue;
point = buf;
str = format;
while ( *str != '\0' ) {
if ( *str != '$' ) {
*point++ = *str++;
continue;
}
++str;
if ( arg2 == NULL && *str >= 'A' && *str <= 'Z' ) {
bug( "Act: missing arg2 for code %d.", *str );
i = " <@@@> ";
} else {
switch ( *str ) {
default:
bug( "Act: bad code %d.", *str );
i = " <@@@> ";
break;
/* Thx alex for 't' idea */
case 't':
i = (char *) arg1;
break;
case 'T':
i = (char *) arg2;
break;
case 'n':
i = PERS( ch, to );
break;
case 'N':
i = PERS( vch, to );
break;
case 'e':
i = he_she [URANGE(0, ch ->sex, 2)];
break;
case 'E':
i = he_she [URANGE(0, vch ->sex, 2)];
break;
case 'm':
i = him_her [URANGE(0, ch ->sex, 2)];
break;
case 'M':
i = him_her [URANGE(0, vch ->sex, 2)];
break;
case 's':
i = his_her [URANGE(0, ch ->sex, 2)];
break;
case 'S':
i = his_her [URANGE(0, vch ->sex, 2)];
break;
case 'p':
i = can_see_obj( to, obj1 )
? obj1->short_descr
: "something";
break;
case 'P':
i = can_see_obj( to, obj2 )
? obj2->short_descr
: "something";
break;
case 'd':
if ( arg2 == NULL || ((char *) arg2)[0] == '\0' ) {
i = "door";
} else {
one_argument( (char *) arg2, fname );
i = fname;
}
break;
}
}
++str;
while ( ( *point = *i ) != '\0' )
++point, ++i;
}
*point++ = '\r';
*point++ = '\n';
buf[0] = UPPER(buf[0]);
/*
* JES: Fixed, no more need to pass length
*/
char buffer[MAX_STRING_LENGTH];
int p = strlen(point);
int b = strlen(buf);
strncpy( buffer, buf, b - p);
buffer[b - p] = '\0';
write_to_buffer( to->desc, buffer, 0 );
}
return;
}