/*************************************************************************** * 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 <string.h> #include <ctype.h> #include <sys/time.h> #include <time.h> #include <errno.h> #include <unistd.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 ) ); void bust_a_prompt 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 = 9500; 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( ); #ifdef IMC imc_startup( FALSE, -1, FALSE ); #endif sprintf( log_buf, "Merc is ready to rock on port %d.", port ); log_string( log_buf ); 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( int port ) { static struct sockaddr_in sa_zero; struct sockaddr_in sa; int x = 1; 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( d->showstr_point ) show_string( d, d->incomm ); else interpret( d->character, d->incomm ); else nanny( d, d->incomm ); d->incomm[0] = '\0'; } } #ifdef IMC imc_loop( ); #endif /* * 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; size_t desc, 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->showstr_head = NULL; dnew->showstr_point = NULL; 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 ) { if( d->showstr_point ) write_to_buffer( d, "[Please type (c)ontinue, (r)efresh, (b)ack, (h)elp, (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( ch ); 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; } } /* * Bust a prompt (player settable prompt) * coded by Morgenes for Aldara Mud */ void bust_a_prompt( CHAR_DATA * ch ) { char buf[MAX_STRING_LENGTH]; char buf2[MAX_STRING_LENGTH]; const char *str; const char *i; char *point; if( ch->prompt == NULL || ch->prompt[0] == '\0' ) { send_to_char( "\r\n\r\n", ch ); return; } point = buf; str = ch->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 'a': if( ch->level < 5 ) 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 != NULL ) sprintf( buf2, "%s", ch->in_room->name ); else sprintf( buf2, " " ); i = buf2; break; case 'R': if( IS_IMMORTAL( ch ) && ch->in_room != NULL ) sprintf( buf2, "%d", ch->in_room->vnum ); else sprintf( buf2, " " ); i = buf2; break; case 'z': if( IS_IMMORTAL( ch ) && ch->in_room != NULL ) sprintf( buf2, "%s", ch->in_room->area->name ); else sprintf( buf2, " " ); i = buf2; break; case '%': sprintf( buf2, "%%" ); i = buf2; break; } ++str; while( ( *point = *i ) != '\0' ) ++point, ++i; } write_to_buffer( ch->desc, 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. */ strcpy( d->outbuf + d->outtop, txt ); 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; NOTE_DATA *pnote; char *pwdnew; char *p; int iClass; int lines; int notes; 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 ) && !ch->wizbit ) { write_to_buffer( d, "The game is wizlocked.\r\n", 0 ); close_socket( d ); 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 */ /* * New characters with same name fix by Salem's Lot */ if( check_playing( d, ch->name ) ) return; 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 ); 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, "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 ); ch->pcdata->pagelen = 20; ch->prompt = "<%hhp %mm %vmv> "; 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 Merc Diku Mud. May your visit here be ... Mercenary.\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->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" ); /* * check for new notes */ notes = 0; for( pnote = note_list; pnote != NULL; 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 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; OBJ_DATA *obj; 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( "$n has reconnected.", ch, NULL, NULL, TO_ROOM ); sprintf( log_buf, "%s@%s reconnected.", ch->name, d->host ); log_string( log_buf ); d->connected = CON_PLAYING; /* * Contributed by Gene Choi */ if( ( obj = get_eq_char( ch, WEAR_LIGHT ) ) != NULL && obj->item_type == ITEM_LIGHT && obj->value[2] != 0 && ch->in_room != NULL ) ++ch->in_room->light; } return TRUE; } } return FALSE; } /* * Check if already playing. */ bool check_playing( DESCRIPTOR_DATA * d, char *name ) { DESCRIPTOR_DATA *dold; for( dold = descriptor_list; dold; dold = dold->next ) { if( dold != d && dold->character != NULL && dold->connected != CON_GET_NAME && dold->connected != CON_GET_OLD_PASSWORD && !str_cmp( name, dold->original ? dold->original->name : dold->character->name ) ) { write_to_buffer( d, "Already playing.\r\nName: ", 0 ); d->connected = CON_GET_NAME; if( d->character != NULL ) { free_char( d->character ); d->character = NULL; } return TRUE; } } return FALSE; } void stop_idling( CHAR_DATA * ch ) { if( ch == NULL || ch->desc == NULL || ch->desc->connected != CON_PLAYING || ch->was_in_room == NULL || ch->in_room != get_room_index( ROOM_VNUM_LIMBO ) ) return; ch->timer = 0; char_from_room( ch ); char_to_room( ch, ch->was_in_room ); ch->was_in_room = NULL; act( "$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 ) return; ch->desc->showstr_head = alloc_mem( strlen( txt ) + 1 ); strcpy( ch->desc->showstr_head, txt ); ch->desc->showstr_point = ch->desc->showstr_head; show_string( ch->desc, "" ); } /* 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 */ void show_string( struct descriptor_data *d, char *input ) { char buffer[MAX_STRING_LENGTH]; char buf[MAX_INPUT_LENGTH]; register char *scan, *chk; int lines = 0, toggle = 1; one_argument( input, buf ); switch ( UPPER( buf[0] ) ) { case '\0': case 'C': /* show next page of text */ lines = 0; break; case 'R': /* refresh current page of text */ lines = -1 - ( d->character->pcdata->pagelen ); break; case 'B': /* scroll back a page of text */ lines = -( 2 * d->character->pcdata->pagelen ); break; case 'H': /* Show some help */ write_to_buffer( d, "C, or Return = continue, R = redraw this page,\r\n", 0 ); write_to_buffer( d, "B = back one page, H = this help, Q or other keys = exit.\r\n\r\n", 0 ); lines = -1 - ( d->character->pcdata->pagelen ); break; default: /*otherwise, stop the text viewing */ if( d->showstr_head ) { free_string( d->showstr_head ); d->showstr_head = 0; } d->showstr_point = 0; return; } /* * do any backing up necessary */ if( lines < 0 ) { for( scan = d->showstr_point; scan > d->showstr_head; scan-- ) if( ( *scan == '\n' ) || ( *scan == '\r' ) ) { toggle = -toggle; if( toggle < 0 ) if( !( ++lines ) ) break; } d->showstr_point = scan; } /* * show a chunk */ lines = 0; toggle = 1; for( scan = buffer;; scan++, d->showstr_point++ ) if( ( ( *scan = *d->showstr_point ) == '\n' || *scan == '\r' ) && ( toggle = -toggle ) < 0 ) lines++; else if( !*scan || ( d->character && !IS_NPC( d->character ) && lines >= d->character->pcdata->pagelen ) ) { *scan = '\0'; write_to_buffer( d, buffer, strlen( buffer ) ); /* * See if this is the end (or near the end) of the string */ for( chk = d->showstr_point; isspace( *chk ); chk++ ); if( !*chk ) { if( d->showstr_head ) { free_string( d->showstr_head ); d->showstr_head = 0; } d->showstr_point = 0; } return; } return; } /* * 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_NPC( to ) && !( to->pIndexData->progtypes & ACT_PROG ) ) ) || !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] ); if( to->desc ) write_to_buffer( to->desc, buf, point - buf ); if( MOBtrigger ) mprog_act_trigger( buf, to, ch, obj1, vch ); /* * Added by Kahn */ } MOBtrigger = TRUE; return; }