/***************************************************************************
* 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. *
* *
* Envy Diku Mud improvements copyright (C) 1994 by Michael Quan, David *
* Love, Guilherme 'Willie' Arnold, and Mitchell Tse. *
* *
* EnvyMud 2.0 improvements copyright (C) 1995 by Michael Quan and *
* Mitchell Tse. *
* *
* EnvyMud 2.2 improvements copyright (C) 1996, 1997 by Michael Quan. *
* *
* In order to use any part of this Envy Diku Mud, you must comply with *
* the original Diku license in 'license.doc', the Merc license in *
* 'license.txt', as well as the Envy license in 'license.nvy'. *
* 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 <stdio.h>
#include <stdlib.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 merc_down; /* Shutdown */
bool wizlock; /* Game is wizlocked */
int numlock = 0; /* Game is numlocked at <level> */
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( ( u_short 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 ) );
void bust_a_prompt args( ( DESCRIPTOR_DATA *d ) );
int main( int argc, char **argv )
{
struct timeval now_time;
u_short 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" ) ) )
{
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 );
boot_db( );
sprintf( log_buf, "EnvyMud is ready to rock on port %d.", port );
log_string( log_buf );
#ifdef IMC
imc_startup( FALSE, -1, FALSE );
#endif
game_loop_unix( control );
close( control );
#ifdef IMC
imc_shutdown( FALSE );
#endif
/*
* That's all, folks.
*/
log_string( "Normal termination of game." );
exit( 0 );
return 0;
}
int init_socket( u_short port )
{
static struct sockaddr_in sa_zero;
struct sockaddr_in sa;
int x = 1;
int fd;
system( "touch SHUTDOWN.TXT" );
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 );
}
system( "rm SHUTDOWN.TXT" );
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 )
{
DESCRIPTOR_DATA *d;
fd_set in_set;
fd_set out_set;
fd_set exc_set;
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( (unsigned) 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; 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; d = d_next )
{
d_next = d->next;
d->fcommand = FALSE;
if ( FD_ISSET( d->descriptor, &in_set ) )
{
if ( d->character )
d->character->timer = 0;
if ( !read_from_descriptor( d ) )
{
FD_CLR( d->descriptor, &out_set );
if ( d->character )
save_char_obj( d->character );
d->outtop = 0;
close_socket( d );
continue;
}
}
if ( d->character && 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 ( d->showstr_point )
show_string( d, d->incomm );
else
interpret( d->character, d->incomm );
else
nanny( d, d->incomm );
d->incomm[0] = '\0';
}
}
/*
* Autonomous game motion.
*/
update_handler( );
#ifdef IMC
imc_loop();
#endif
/*
* Output.
*/
for ( d = descriptor_list; d; 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 )
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;
DESCRIPTOR_DATA *dnew;
struct sockaddr_in sock;
struct hostent *from;
BAN_DATA *pban;
char buf [ MAX_STRING_LENGTH ];
size_t desc, size;
int addr;
size = sizeof( sock );
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 )
{
dnew = alloc_perm( sizeof( *dnew ) );
}
else
{
dnew = descriptor_free;
descriptor_free = descriptor_free->next;
}
*dnew = d_zero;
dnew->descriptor = desc;
dnew->character = NULL;
dnew->connected = CON_GET_NAME;
dnew->showstr_head = str_dup( "" );
dnew->showstr_point = 0;
dnew->outsize = 2000;
dnew->outbuf = alloc_mem( dnew->outsize );
size = sizeof( sock );
/*
* Would be nice to use inet_ntoa here but it takes a struct arg,
* which ain't very compatible between gcc and system libraries.
*/
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; 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 )
{
write_to_buffer( dclose->snoop_by,
"Your victim has left the game.\r\n", 0 );
}
{
DESCRIPTOR_DATA *d;
for ( d = descriptor_list; d; d = d->next )
{
if ( d->snoop_by == dclose )
d->snoop_by = NULL;
}
}
if ( ( ch = dclose->character ) )
{
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 )
d->next = dclose->next;
else
bug( "Close_socket: dclose not found.", 0 );
}
close( dclose->descriptor );
free_string( dclose->host );
/* RT socket leak fix */
free_mem( dclose->outbuf, dclose->outsize );
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 || errno == EAGAIN )
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;
int j;
int 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 )
{
if ( d->showstr_point )
{
write_to_buffer( d,
"[Please type (c)ontinue, (r)efresh, (b)ack, (q)uit, or RETURN]: ", 0 );
}
else
{
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 ) )
bust_a_prompt( d );
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 )
{
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;
}
}
/*
* Bust a prompt (player settable prompt)
* coded by Morgenes for Aldara Mud
*/
void bust_a_prompt( DESCRIPTOR_DATA *d )
{
CHAR_DATA *ch;
const char *str;
const char *i;
char *point;
char buf [ MAX_STRING_LENGTH ];
char buf2 [ MAX_STRING_LENGTH ];
/* Will always have a pc ch after this */
ch = ( d->original ? d->original : d->character );
if( !ch->pcdata->prompt || ch->pcdata->prompt[0] == '\0' )
{
send_to_char( "\r\n\r\n", ch );
return;
}
point = buf;
str = ch->pcdata->prompt;
while( *str != '\0' )
{
if( *str != '%' )
{
*point++ = *str++;
continue;
}
++str;
switch( *str )
{
default :
i = " "; break;
case 'h' :
sprintf( buf2, "%d", ch->hit );
i = buf2; break;
case 'H' :
sprintf( buf2, "%d", ch->max_hit );
i = buf2; break;
case 'm' :
sprintf( buf2, "%d", ch->mana );
i = buf2; break;
case 'M' :
sprintf( buf2, "%d", ch->max_mana );
i = buf2; break;
case 'v' :
sprintf( buf2, "%d", ch->move );
i = buf2; break;
case 'V' :
sprintf( buf2, "%d", ch->max_move );
i = buf2; break;
case 'x' :
sprintf( buf2, "%d", ch->exp );
i = buf2; break;
case 'g' :
sprintf( buf2, "%d", ch->gold );
i = buf2; break;
case 'w' :
sprintf( buf2, "%d", ch->wait );
i = buf2; break;
case 'a' :
if( ch->level > 10 )
sprintf( buf2, "%d", ch->alignment );
else
sprintf( buf2, "%s", IS_GOOD( ch ) ? "good"
: IS_EVIL( ch ) ? "evil" : "neutral" );
i = buf2; break;
case 'r' :
if( ch->in_room )
sprintf( buf2, "%s", ch->in_room->name );
else
sprintf( buf2, " " );
i = buf2; break;
case 'R' :
if( IS_IMMORTAL( ch ) && ch->in_room )
sprintf( buf2, "%d", ch->in_room->vnum );
else
sprintf( buf2, " " );
i = buf2; break;
case 'z' :
if( IS_IMMORTAL( ch ) && ch->in_room )
sprintf( buf2, "%s", ch->in_room->area->name );
else
sprintf( buf2, " " );
i = buf2; break;
case 'i' : /* Invisible notification on prompt sent by Kaneda */
sprintf( buf2, "%s", IS_AFFECTED( ch, AFF_INVISIBLE ) ?
"invisible" : "visible" );
i = buf2; break;
case 'I' :
if( IS_IMMORTAL( ch ) )
sprintf( buf2, "(wizinv: %s)", IS_SET( ch->act, PLR_WIZINVIS ) ?
"on" : "off" );
else
sprintf( buf2, " " );
i = buf2; break;
case '%' :
sprintf( buf2, "%%" );
i = buf2; break;
}
++str;
while( ( *point = *i ) != '\0' )
++point, ++i;
}
write_to_buffer( d, buf, point - buf );
return;
}
/*
* Append onto an output buffer.
*/
void write_to_buffer( DESCRIPTOR_DATA *d, const char *txt, int length )
{
/*
* Find length in case caller didn't.
*/
if ( length <= 0 )
length = strlen( txt );
/*
* 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. Modifications sent in by Zavod.
*/
strncpy( d->outbuf + d->outtop, txt, length );
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, 2048 );
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_DATA *ch;
NOTE_DATA *pnote;
char *pwdnew;
char *classname;
char *p;
char buf [ MAX_STRING_LENGTH ];
int iClass;
int iRace;
int lines;
int notes;
bool fOld;
while ( isspace( *argument ) )
argument++;
/* This is here so we wont get warnings. ch = NULL anyways - Kahn */
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
{
/* Must be immortal with wizbit in order to get in */
if ( wizlock
&& !IS_HERO( ch )
&& !IS_SET( ch->act, PLR_WIZBIT ) )
{
write_to_buffer( d, "The game is wizlocked.\r\n", 0 );
close_socket( d );
return;
}
if ( ch->level <= numlock
&& !IS_SET( ch->act, PLR_WIZBIT )
&& numlock != 0 )
{
write_to_buffer( d,
"The game is locked to your level character.\r\n\r\n",
0 );
if ( ch->level == 0 )
{
write_to_buffer( d,
"New characters are now temporarily in email ",
0 );
write_to_buffer( d, "registration mode.\r\n\r\n", 0 );
write_to_buffer( d,
"Please email <implementor addr here> to ", 0 );
write_to_buffer( d, "register your character.\r\n\r\n",
0 );
write_to_buffer( d,
"One email address per character please.\r\n", 0 );
write_to_buffer( d, "Thank you, EnvyMud Staff.\r\n\r\n",
0 );
}
close_socket( d ) ;
return;
}
}
if ( check_playing( d, ch->name ) )
return;
if ( fOld )
{
/* Old player */
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;
sprintf( log_buf, "%s@%s has connected.", ch->name, d->host );
log_string( log_buf );
lines = ch->pcdata->pagelen;
ch->pcdata->pagelen = 20;
if ( IS_HERO( ch ) )
do_help( ch, "imotd" );
do_help( ch, "motd" );
ch->pcdata->pagelen = lines;
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, "\r\nPress Return to continue:\r\n", 0 );
d->connected = CON_DISPLAY_RACE;
break;
case CON_DISPLAY_RACE:
strcpy( buf, "Select a race [" );
for ( iRace = 0; iRace < MAX_RACE; iRace++ )
{
if ( !IS_SET( race_table[ iRace ].race_abilities, RACE_PC_AVAIL ) )
continue;
if ( iRace > 0 )
strcat( buf, " " );
strcat( buf, race_table[iRace].name );
}
strcat( buf, "]: " );
write_to_buffer( d, buf, 0 );
d->connected = CON_GET_NEW_RACE;
break;
case CON_GET_NEW_RACE:
for ( iRace = 0; iRace < MAX_RACE; iRace++ )
if ( !str_prefix( argument, race_table[iRace].name )
&& IS_SET( race_table[ iRace ].race_abilities,
RACE_PC_AVAIL ) )
{
ch->race = race_lookup( race_table[iRace].name );
break;
}
if ( iRace == MAX_RACE )
{
write_to_buffer( d,
"That is not a race.\r\nWhat IS your race? ", 0 );
return;
}
write_to_buffer( d, "\r\n", 0 );
do_help( ch, race_table[ch->race].name );
write_to_buffer( d, "Are you sure you want this race? ", 0 );
d->connected = CON_CONFIRM_NEW_RACE;
break;
case CON_CONFIRM_NEW_RACE:
switch ( argument[0] )
{
case 'y': case 'Y': break;
default:
write_to_buffer( d, "\r\nPress Return to continue:\r\n", 0 );
d->connected = CON_DISPLAY_RACE;
return;
}
write_to_buffer( d, "\r\nWhat 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;
}
d->connected = CON_DISPLAY_CLASS;
write_to_buffer( d, "\r\nPress Return to continue:\r\n", 0 );
break;
case CON_DISPLAY_CLASS:
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_prefix( 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;
}
write_to_buffer( d, "\r\n", 0 );
/* define the classname for helps. */
switch ( ch->class )
{
default: classname = ""; break;
case 0: classname = "Mage"; break;
case 1: classname = "Cleric"; break;
case 2: classname = "Thief"; break;
case 3: classname = "Warrior"; break;
case 4: classname = "Psionicist"; break;
}
if ( classname != "" )
do_help( ch, classname );
else
bug( "Nanny CON_GET_NEW_CLASS: ch->class (%d) not valid",
ch->class );
write_to_buffer( d, "Are you sure you want this class? ", 0 );
d->connected = CON_CONFIRM_CLASS;
break;
case CON_CONFIRM_CLASS:
switch ( argument[0] )
{
case 'y': case 'Y': break;
default:
write_to_buffer( d, "\r\nPress Return to continue:\r\n", 0 );
d->connected = CON_DISPLAY_CLASS;
return;
}
sprintf( log_buf, "%s@%s new player.", ch->name, d->host );
log_string( log_buf );
write_to_buffer( d, "\r\n", 2 );
ch->pcdata->pagelen = 20;
do_help( ch, "motd" );
d->connected = CON_READ_MOTD;
break;
case CON_READ_MOTD:
ch->next = char_list;
char_list = ch;
d->connected = CON_PLAYING;
send_to_char(
"\r\nWelcome to Envy Diku Mud. May your visit here be ... Fun.\r\n",
ch );
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->gold = 5500 + number_fuzzy( 3 )
* number_fuzzy( 4 ) * number_fuzzy( 5 ) * 9;
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 );
free_string( ch->pcdata->prompt );
ch->pcdata->prompt = str_dup( "<%hhp %mm %vmv> " );
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 )
{
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 ) );
}
if ( !IS_SET( ch->act, PLR_WIZINVIS )
&& !IS_AFFECTED( ch, AFF_INVISIBLE ) )
act( "$n has entered the game.", ch, NULL, NULL, TO_ROOM );
do_look( ch, "auto" );
/* check for new notes */
notes = 0;
for ( pnote = note_list; pnote; pnote = pnote->next )
if ( is_note_to( ch, pnote ) && str_cmp( ch->name, pnote->sender )
&& pnote->date_stamp > ch->last_note )
notes++;
if ( notes == 1 )
send_to_char( "\r\nYou have one new note waiting.\r\n", ch );
else
if ( notes > 1 )
{
sprintf( buf, "\r\nYou have %d new notes waiting.\r\n",
notes );
send_to_char( buf, ch );
}
break;
}
return;
}
/*
* Parse a name for acceptability.
*/
bool check_parse_name( char *name )
{
/*
* Reserved words.
*/
if ( is_name( name, "all auto imm immortal self someone . .. ./ ../ /" ) )
return FALSE;
/*
* Obsenities
*/
if ( is_name( name, "damn fuck screw shit ass asshole bitch bastard gay lesbian pussy fart vagina penis" ) )
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;
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; ch = ch->next )
{
if ( ch->deleted )
continue;
if ( !IS_NPC( ch )
&& ( !fConn || !ch->desc )
&& !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( "$n has reconnected.", ch, NULL, NULL, TO_ROOM );
sprintf( log_buf, "%s@%s reconnected.", ch->name, d->host );
log_string( log_buf );
d->connected = CON_PLAYING;
}
return TRUE;
}
}
return FALSE;
}
/*
* Check if already playing.
*/
bool check_playing( DESCRIPTOR_DATA *d, char *name )
{
DESCRIPTOR_DATA *dold;
for ( dold = descriptor_list; dold; dold = dold->next )
{
if ( dold != d
&& dold->character
&& dold->connected != CON_GET_NAME
&& !str_cmp( name, dold->original
? dold->original->name : dold->character->name )
&& !dold->character->deleted )
{
write_to_buffer( d, "Already playing.\r\nName: ", 0 );
d->connected = CON_GET_NAME;
if ( d->character )
{
free_char( d->character );
d->character = NULL;
}
return TRUE;
}
}
return FALSE;
}
void stop_idling( CHAR_DATA *ch )
{
if ( !ch
|| !ch->desc
|| ch->desc->connected != CON_PLAYING
|| !ch->was_in_room
|| ch->in_room != get_room_index( ROOM_VNUM_LIMBO ) )
return;
ch->timer = 0;
char_from_room( ch );
char_to_room( ch, ch->was_in_room );
ch->was_in_room = NULL;
act( "$n has returned from the void.", ch, NULL, NULL, TO_ROOM );
return;
}
/*
* Write to all in the room.
*/
void send_to_room( const char *txt, ROOM_INDEX_DATA *room )
{
DESCRIPTOR_DATA *d;
for ( d = descriptor_list; d; d = d->next )
if ( d->character != NULL )
if ( d->character->in_room == room )
act( txt, d->character, NULL, NULL, TO_CHAR );
}
/*
* Write to all characters.
*/
void send_to_all_char( const char *text )
{
DESCRIPTOR_DATA *d;
if ( !text )
return;
for ( d = descriptor_list; d; d = d->next )
if ( d->connected == CON_PLAYING )
send_to_char( text, d->character );
return;
}
/*
* Write to one char.
*/
void send_to_char( const char *txt, CHAR_DATA *ch )
{
if ( !txt || !ch->desc )
return;
/*
* Bypass the paging procedure if the text output is small
* Saves process time.
*/
if ( strlen( txt ) < 600 )
write_to_buffer( ch->desc, txt, strlen( txt ) );
else
{
free_string( ch->desc->showstr_head );
ch->desc->showstr_head = str_dup( txt );
ch->desc->showstr_point = ch->desc->showstr_head;
show_string( ch->desc, "" );
}
return;
}
/* The heart of the pager. Thanks to N'Atas-Ha, ThePrincedom
for porting this SillyMud code for MERC 2.0 and laying down the groundwork.
Thanks to Blackstar, hopper.cs.uiowa.edu 4000 for which
the improvements to the pager was modeled from. - Kahn */
/* 12/1/94 Fixed bounds and overflow bugs in pager thanks to BoneCrusher
of EnvyMud Staff - Kahn */
void show_string( struct descriptor_data *d, char *input )
{
register char *scan;
char buffer[ MAX_STRING_LENGTH*6 ];
char buf [ MAX_INPUT_LENGTH ];
int line = 0;
int toggle = 0;
int pagelines = 20;
one_argument( input, buf );
switch( UPPER( buf[0] ) )
{
case '\0':
case 'C': /* show next page of text */
break;
case 'R': /* refresh current page of text */
toggle = 1;
break;
case 'B': /* scroll back a page of text */
toggle = 2;
break;
default: /*otherwise, stop the text viewing */
if ( d->showstr_head )
{
free_string( d->showstr_head );
d->showstr_head = str_dup( "" );
}
d->showstr_point = 0;
return;
}
if ( d->original )
pagelines = d->original->pcdata->pagelen;
else
pagelines = d->character->pcdata->pagelen;
if ( toggle )
{
if ( d->showstr_point == d->showstr_head )
return;
if ( toggle == 1 )
line = -1;
do
{
if ( *d->showstr_point == '\n' )
if ( ( line++ ) == ( pagelines * toggle ) )
break;
d->showstr_point--;
} while( d->showstr_point != d->showstr_head );
}
line = 0;
*buffer = 0;
scan = buffer;
if ( *d->showstr_point )
{
do
{
*scan = *d->showstr_point;
if ( *scan == '\n' )
if ( ( line++ ) == pagelines )
{
scan++;
break;
}
scan++;
d->showstr_point++;
if( *d->showstr_point == 0 )
break;
} while( 1 );
}
/* On advice by Scott Mobley and others */
*scan++ = '\n';
*scan++ = '\r';
*scan = 0;
write_to_buffer( d, buffer, strlen( buffer ) );
if ( *d->showstr_point == 0 )
{
free_string( d->showstr_head );
d->showstr_head = str_dup( "" );
d->showstr_point = 0;
}
return;
}
/*
* The primary output interface for formatted output.
*/
void act( const char *format, CHAR_DATA *ch, const void *arg1,
const void *arg2, int type )
{
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
CHAR_DATA *to;
CHAR_DATA *vch = (CHAR_DATA *) arg2;
static char * const he_she [ ] = { "it", "he", "she" };
static char * const him_her [ ] = { "it", "him", "her" };
static char * const his_her [ ] = { "its", "his", "her" };
const char *str;
const char *i;
char *point;
char buf [ MAX_STRING_LENGTH ];
char buf1 [ MAX_STRING_LENGTH ];
char fname [ MAX_INPUT_LENGTH ];
/*
* Discard null and zero-length messages.
*/
if ( !format || format[0] == '\0' )
return;
to = ch->in_room->people;
if ( type == TO_VICT )
{
if ( !vch )
{
bug( "Act: null vch with TO_VICT.", 0 );
sprintf( buf1, "Bad act string: %s", format );
bug( buf1, 0 );
return;
}
to = vch->in_room->people;
}
for ( ; to; to = to->next_in_room )
{
if ( ( to->deleted )
|| ( !to->desc && IS_NPC( to ) )
|| !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 && *str >= 'A' && *str <= 'Z' )
{
bug( "Act: missing arg2 for code %d.", *str );
sprintf( buf1, "Bad act string: %s", format );
bug( buf1, 0 );
i = " <@@@> ";
}
else
{
switch ( *str )
{
default: bug( "Act: bad code %d.", *str );
sprintf( buf1, "Bad act string: %s", format );
bug( buf1, 0 );
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 || ( (char *) arg2 )[0] == '\0' )
{
i = "door";
}
else
{
one_argument( (char *) arg2, fname );
i = fname;
}
break;
}
}
++str;
while ( ( *point = *i ) != '\0' )
++point, ++i;
}
*point++ = '\n';
*point++ = '\r';
buf[0] = UPPER( buf[0] );
if ( to->desc )
write_to_buffer( to->desc, buf, point - buf );
}
return;
}