/**************************************************************************** * Eldhamud Codebase V2.2 * * ------------------------------------------------------------------------ * * EldhaMUD code (C) 2003-2008 by Robert Powell (Tommi) * * ------------------------------------------------------------------------ * * Original SMAUG 1.4a written by Thoric (Derek Snider) with Altrag, * * Blodkai, Haus, Narn, Scryn, Swordbearer, Tricops, Gorog, Rennard, * * Grishnakh, Fireblade, and Nivek. * * * * Original MERC 2.1 code by Hatchet, Furey, and Kahn. * * * * Original DikuMUD code by: Hans Staerfeldt, Katja Nyboe, Tom Madsen, * * Michael Seifert, and Sebastian Hammer. * * ------------------------------------------------------------------------ * * Command interpretation module * ****************************************************************************/ #include <ctype.h> #include <stdio.h> #include <string.h> #include <time.h> #include "./Headers/mud.h" /* * Externals */ void refresh_page( CHAR_DATA * ch ); void subtract_times( struct timeval *etime, struct timeval *sttime ); bool check_social args( ( CHAR_DATA * ch, char *command, char *argument ) ); char *check_cmd_flags args( ( CHAR_DATA * ch, CMDTYPE * cmd ) ); /* * Log-all switch. */ bool fLogAll = FALSE; CMDTYPE *command_hash[126]; /* hash table for cmd_table */ SOCIALTYPE *social_index[27]; /* hash table for socials */ /* * Character not in position for command? */ bool check_pos( CHAR_DATA * ch, short position ) { if( IS_NPC( ch ) && ch->position > 3 ) /*Band-aid alert? -- Blod */ return TRUE; if( ch->position < position ) { switch ( ch->position ) { case POS_DEAD: send_to_char( "A little difficult to do when you are DEAD...\r\n", ch ); break; case POS_MORTAL: case POS_INCAP: send_to_char( "You are hurt far too bad for that.\r\n", ch ); break; case POS_STUNNED: send_to_char( "You are too stunned to do that.\r\n", ch ); break; case POS_SLEEPING: send_to_char( "You are unable to do that while asleep!\r\n", ch ); break; case POS_RESTING: send_to_char( "Nah... You feel too relaxed...\r\n", ch ); break; case POS_SITTING: send_to_char( "You can't do that sitting down.\r\n", ch ); break; case POS_FIGHTING: if( position <= POS_EVASIVE ) { send_to_char( "This fighting style is too demanding for that!\r\n", ch ); } else { send_to_char( "No way! You are still fighting!\r\n", ch ); } break; case POS_DEFENSIVE: if( position <= POS_EVASIVE ) { send_to_char( "This fighting style is too demanding for that!\r\n", ch ); } else { send_to_char( "No way! You are still fighting!\r\n", ch ); } break; case POS_AGGRESSIVE: if( position <= POS_EVASIVE ) { send_to_char( "This fighting style is too demanding for that!\r\n", ch ); } else { send_to_char( "No way! You are still fighting!\r\n", ch ); } break; case POS_BERSERK: if( position <= POS_EVASIVE ) { send_to_char( "This fighting style is too demanding for that!\r\n", ch ); } else { send_to_char( "No way! You are still fighting!\r\n", ch ); } break; case POS_EVASIVE: send_to_char( "No way! You are still fighting!\r\n", ch ); break; } return FALSE; } return TRUE; } extern char lastplayercmd[MAX_INPUT_LENGTH * 2]; /* * The main entry point for executing commands. * Can be recursively called from 'at', 'order', 'force'. */ void interpret( CHAR_DATA * ch, char *argument ) { char command[MAX_INPUT_LENGTH]; char logline[MAX_INPUT_LENGTH]; char logname[MAX_INPUT_LENGTH]; char *buf; TIMER *timer = NULL; CMDTYPE *cmd = NULL; int trust; int loglvl; bool found; struct timeval time_used; long tmptime; if( !ch ) { bug( "interpret: null ch!", 0 ); return; } if( !ch->in_room ) { bug( "interpret: null in_room!", 0 ); return; } found = FALSE; if( ch->substate == SUB_REPEATCMD ) { DO_FUN *fun; if( ( fun = ch->last_cmd ) == NULL ) { ch->substate = SUB_NONE; bug( "interpret: SUB_REPEATCMD with NULL last_cmd", 0 ); return; } else { int x; /* * yes... we lose out on the hashing speediness here... * but the only REPEATCMDS are wizcommands (currently) */ for( x = 0; x < 126; x++ ) { for( cmd = command_hash[x]; cmd; cmd = cmd->next ) if( cmd->do_fun == fun ) { found = TRUE; break; } if( found ) break; } if( !found ) { cmd = NULL; bug( "interpret: SUB_REPEATCMD: last_cmd invalid", 0 ); return; } sprintf( logline, "(%s) %s", cmd->name, argument ); } } if( !cmd ) { /* * Changed the order of these ifchecks to prevent crashing. */ if( !argument || !strcmp( argument, "" ) ) { bug( "interpret: null argument!", 0 ); return; } /* * Strip leading spaces. */ while( isspace( *argument ) ) argument++; if( argument[0] == STRING_NULL ) return; /* * xREMOVE_BIT( ch->affected_by, AFF_HIDE ); */ /* * Implement freeze command. */ if( !IS_NPC( ch ) && xIS_SET( ch->act, PLR_FREEZE ) ) { send_to_char( "You're totally frozen!\r\n", ch ); return; } /* * Grab the command word. * Special parsing so ' can be a command, * also no spaces needed after punctuation. */ strcpy( logline, argument ); if( !isalpha( argument[0] ) && !isdigit( argument[0] ) ) { command[0] = argument[0]; command[1] = STRING_NULL; argument++; while( isspace( *argument ) ) argument++; } else argument = one_argument( argument, command ); /* * Look for command in command table. * Check for council powers and/or bestowments */ trust = get_trust( ch ); for( cmd = command_hash[LOWER( command[0] ) % 126]; cmd; cmd = cmd->next ) if( !str_prefix( command, cmd->name ) && ( cmd->level <= trust || ( !IS_NPC( ch ) && ch->pcdata->bestowments && ch->pcdata->bestowments[0] != STRING_NULL && is_name( cmd->name, ch->pcdata->bestowments ) && cmd->level <= ( trust + sysdata.bestow_dif ) ) ) ) { found = TRUE; break; } /* * Turn off afk bit when any command performed. */ if( !IS_NPC( ch ) && xIS_SET( ch->act, PLR_AFK ) && ( str_cmp( command, "AFK" ) ) ) { xREMOVE_BIT( ch->act, PLR_AFK ); /* act( AT_GREY, "$n is no longer afk.", ch, NULL, NULL, TO_ROOM ); */ act( AT_GREY, "$n is no longer afk.", ch, NULL, NULL, TO_CANSEE ); } } /* * Log and snoop. */ /* sprintf( lastplayercmd, "** %s: %s", ch->name, logline ); */ sprintf( lastplayercmd, "%s used %s", ch->name, logline ); if( found && cmd->log == LOG_NEVER ) strcpy( logline, "XXXXXXXX XXXXXXXX XXXXXXXX" ); loglvl = found ? cmd->log : LOG_NORMAL; if( ( !IS_NPC( ch ) && xIS_SET( ch->act, PLR_LOG ) ) || fLogAll || loglvl == LOG_BUILD || loglvl == LOG_HIGH || loglvl == LOG_ALWAYS ) { /* * Added by Narn to show who is switched into a mob that executes * a logged command. Check for descriptor in case force is used. */ if( ch->desc && ch->desc->original ) sprintf( log_buf, "Log %s (%s): %s", ch->name, ch->desc->original->name, logline ); else sprintf( log_buf, "Log %s: %s", ch->name, logline ); /* * Make it so a 'log all' will send most output to the log * file only, and not spam the log channel to death -Thoric */ if( fLogAll && loglvl == LOG_NORMAL && ( IS_NPC( ch ) || !xIS_SET( ch->act, PLR_LOG ) ) ) loglvl = LOG_ALL; /* * This is handled in get_trust already */ /* if ( ch->desc && ch->desc->original ) log_string_plus( log_buf, loglvl, ch->desc->original->level ); else*/ log_string_plus( log_buf, loglvl, get_trust( ch ) ); } if( ch->desc && ch->desc->snoop_by ) { sprintf( logname, "%s", ch->name ); write_to_buffer( ch->desc->snoop_by, logname, 0 ); write_to_buffer( ch->desc->snoop_by, "% ", 2 ); write_to_buffer( ch->desc->snoop_by, logline, 0 ); write_to_buffer( ch->desc->snoop_by, "\r\n", 2 ); } /* * check for a timer delayed command (search, dig, detrap, etc) */ if( ( timer = get_timerptr( ch, TIMER_DO_FUN ) ) != NULL ) { int tempsub; tempsub = ch->substate; ch->substate = SUB_TIMER_DO_ABORT; ( timer->do_fun ) ( ch, "" ); if( char_died( ch ) ) return; if( ch->substate != SUB_TIMER_CANT_ABORT ) { ch->substate = tempsub; extract_timer( ch, timer ); } else { ch->substate = tempsub; return; } } /* * Look for command in skill and socials table. */ if( !found ) { if( !check_skill( ch, command, argument ) && !check_social( ch, command, argument ) #ifdef IMC && !imc_command_hook( ch, command, argument ) #endif ) { EXIT_DATA *pexit; /* * check for an auto-matic exit command */ if( ( pexit = find_door( ch, command, TRUE ) ) != NULL && IS_SET( pexit->exit_info, EX_xAUTO ) ) { if( IS_SET( pexit->exit_info, EX_CLOSED ) && ( !IS_AFFECTED( ch, AFF_PASS_DOOR ) || IS_SET( pexit->exit_info, EX_NOPASSDOOR ) ) ) { if( !IS_SET( pexit->exit_info, EX_SECRET ) ) act( AT_PLAIN, "The $d is closed.", ch, NULL, pexit->keyword, TO_CHAR ); else send_to_char( "You cannot do that here.\r\n", ch ); return; } move_char( ch, pexit, 0, pexit->vdir ); return; } send_to_char( "Huh?\r\n", ch ); } return; } /* * Character not in position for command? */ if( !check_pos( ch, cmd->position ) ) return; /* * So we can check commands for things like Posses and Polymorph * * But still keep the online editing ability. -- Shaddai * * Send back the message to print out, so we have the option * * this function might be usefull elsewhere. Also using the * * send_to_char_color so we can colorize the strings if need be. --Shaddai */ buf = check_cmd_flags( ch, cmd ); if( buf[0] != STRING_NULL ) { send_to_char_color( buf, ch ); return; } /* * Dispatch the command. */ ch->prev_cmd = ch->last_cmd; /* haus, for automapping */ ch->last_cmd = cmd->do_fun; start_timer( &time_used ); ( *cmd->do_fun ) ( ch, argument ); end_timer( &time_used ); /* * Update the record of how many times this command has been used (haus) */ update_userec( &time_used, &cmd->userec ); tmptime = UMIN( time_used.tv_sec, 19 ) * 1000000 + time_used.tv_usec; /* * laggy command notice: command took longer than 1.5 seconds */ if( tmptime > 1500000 ) { sprintf( log_buf, "[*****] LAG: %s: %s %s (R:%d S:%ld.%06ld)", ch->name, cmd->name, ( cmd->log == LOG_NEVER ? "XXX" : argument ), ch->in_room ? ch->in_room->vnum : 0, time_used.tv_sec, time_used.tv_usec ); log_string_plus( log_buf, LOG_NORMAL, get_trust( ch ) ); cmd->lag_count++; /* count the lag flags */ } tail_chain( ); } CMDTYPE *find_command( char *command ) { CMDTYPE *cmd; int hash; hash = LOWER( command[0] ) % 126; for( cmd = command_hash[hash]; cmd; cmd = cmd->next ) if( !str_prefix( command, cmd->name ) ) return cmd; return NULL; } SOCIALTYPE *find_social( char *command ) { SOCIALTYPE *social; int hash; if( command[0] < 'a' || command[0] > 'z' ) hash = 0; else hash = ( command[0] - 'a' ) + 1; for( social = social_index[hash]; social; social = social->next ) if( !str_prefix( command, social->name ) ) return social; return NULL; } bool check_social( CHAR_DATA * ch, char *command, char *argument ) { char arg[MAX_INPUT_LENGTH]; CHAR_DATA *victim, *victim_next; SOCIALTYPE *social; CHAR_DATA *removed[128]; /* What are the chances of more than 128? */ ROOM_INDEX_DATA *room; int i = 0, k = 0; if( ( social = find_social( command ) ) == NULL ) return FALSE; if( !IS_NPC( ch ) && xIS_SET( ch->act, PLR_NO_EMOTE ) ) { send_to_char( "You are anti-social!\r\n", ch ); return TRUE; } switch ( ch->position ) { case POS_DEAD: send_to_char( "Lie still; you are DEAD.\r\n", ch ); return TRUE; case POS_INCAP: case POS_MORTAL: send_to_char( "You are hurt far too bad for that.\r\n", ch ); return TRUE; case POS_STUNNED: send_to_char( "You are too stunned to do that.\r\n", ch ); return TRUE; case POS_SLEEPING: if( !str_cmp( social->name, "snore" ) ) break; send_to_char( "You are unable to do that while asleep!\r\n", ch ); return TRUE; } /* * Search room for chars ignoring social sender and */ /* * remove them from the room until social has been */ /* * completed */ room = ch->in_room; for( victim = ch->in_room->first_person; victim; victim = victim_next ) { if( i == 127 ) break; victim_next = victim->next_in_room; if( is_ignoring( victim, ch ) ) { if( !IS_IMMORTAL( ch ) || get_trust( victim ) > get_trust( ch ) ) { removed[i] = victim; i++; UNLINK( victim, room->first_person, room->last_person, next_in_room, prev_in_room ); } else { set_char_color( AT_IGNORE, victim ); ch_printf( victim, "You attempt to ignore %s," " but are unable to do so.\r\n", ch->name ); } } } one_argument( argument, arg ); victim = NULL; if( arg[0] == STRING_NULL ) { act( AT_SOCIAL, social->others_no_arg, ch, NULL, victim, TO_ROOM ); act( AT_SOCIAL, social->char_no_arg, ch, NULL, victim, TO_CHAR ); } else if( ( victim = get_char_room( ch, arg ) ) == NULL ) { /* * If they aren't in the room, they may be in the list of */ /* * people ignoring... */ if( i != 0 ) { for( k = 0, victim = removed[0]; k < i; k++, victim = removed[k] ) { if( nifty_is_name( victim->name, arg ) || nifty_is_name_prefix( arg, victim->name ) ) { set_char_color( AT_IGNORE, ch ); ch_printf( ch, "%s is ignoring you.\r\n", victim->name ); break; } } } if( !victim ) send_to_char( "They aren't here.\r\n", ch ); } else if( victim == ch ) { act( AT_SOCIAL, social->others_auto, ch, NULL, victim, TO_ROOM ); act( AT_SOCIAL, social->char_auto, ch, NULL, victim, TO_CHAR ); } else { act( AT_SOCIAL, social->others_found, ch, NULL, victim, TO_NOTVICT ); act( AT_SOCIAL, social->char_found, ch, NULL, victim, TO_CHAR ); act( AT_SOCIAL, social->vict_found, ch, NULL, victim, TO_VICT ); if( !IS_NPC( ch ) && IS_NPC( victim ) && !IS_AFFECTED( victim, AFF_CHARM ) && IS_AWAKE( victim ) && !HAS_PROG( victim->pIndexData, ACT_PROG ) ) { switch ( number_bits( 4 ) ) { case 0: if( IS_NEUTRAL( ch ) ) { act( AT_ACTION, "$n slaps $N.", victim, NULL, ch, TO_NOTVICT ); act( AT_ACTION, "You slap $N.", victim, NULL, ch, TO_CHAR ); act( AT_ACTION, "$n slaps you.", victim, NULL, ch, TO_VICT ); } else { act( AT_ACTION, "$n acts like $N doesn't even exist.", victim, NULL, ch, TO_NOTVICT ); act( AT_ACTION, "You just ignore $N.", victim, NULL, ch, TO_CHAR ); act( AT_ACTION, "$n appears to be ignoring you.", victim, NULL, ch, TO_VICT ); } break; case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8: act( AT_SOCIAL, social->others_found, victim, NULL, ch, TO_NOTVICT ); act( AT_SOCIAL, social->char_found, victim, NULL, ch, TO_CHAR ); act( AT_SOCIAL, social->vict_found, victim, NULL, ch, TO_VICT ); break; case 9: case 10: case 11: case 12: act( AT_ACTION, "$n slaps $N.", victim, NULL, ch, TO_NOTVICT ); act( AT_ACTION, "You slap $N.", victim, NULL, ch, TO_CHAR ); act( AT_ACTION, "$n slaps you.", victim, NULL, ch, TO_VICT ); break; } } } /* * Replace the chars in the ignoring list to the room */ /* * note that the ordering of the players in the room */ /* * might change */ if( i != 0 ) { for( k = 0, victim = removed[0]; k < i; k++, victim = removed[k] ) { LINK( victim, room->first_person, room->last_person, next_in_room, prev_in_room ); } } return TRUE; } /* * Return true if an argument is completely numeric. */ bool is_number( char *arg ) { bool first = TRUE; if( *arg == STRING_NULL ) return FALSE; for( ; *arg != STRING_NULL; arg++ ) { if( first && *arg == '-' ) { first = FALSE; continue; } if( !isdigit( *arg ) ) return FALSE; first = FALSE; } return TRUE; } /* * Given a string like 14.foo, return 14 and 'foo' */ int number_argument( char *argument, char *arg ) { char *pdot; int number; for( pdot = argument; *pdot != STRING_NULL; pdot++ ) { if( *pdot == '.' ) { *pdot = STRING_NULL; number = atoi( argument ); *pdot = '.'; strcpy( arg, pdot + 1 ); return number; } } strcpy( arg, argument ); return 1; } /* * Pick off one argument from a string and return the rest. * Understands quotes. */ char *one_argument( char *argument, char *arg_first ) { char cEnd; short count; count = 0; if( !argument || argument[0] == STRING_NULL ) { arg_first[0] = STRING_NULL; return argument; } while( isspace( *argument ) ) argument++; cEnd = ' '; if( *argument == '\'' || *argument == '"' ) cEnd = *argument++; while( *argument != STRING_NULL || ++count >= 255 ) { if( *argument == cEnd ) { argument++; break; } *arg_first = *argument; arg_first++; argument++; } *arg_first = STRING_NULL; while( isspace( *argument ) ) argument++; return argument; } /* * Pick off one argument from a string and return the rest. * Understands quotes. Delimiters = { ' ', '-' } */ char *one_argument2( char *argument, char *arg_first ) { char cEnd; short count; count = 0; if( !argument || argument[0] == STRING_NULL ) { arg_first[0] = STRING_NULL; return argument; } while( isspace( *argument ) ) argument++; cEnd = ' '; if( *argument == '\'' || *argument == '"' ) cEnd = *argument++; while( *argument != STRING_NULL || ++count >= 255 ) { if( *argument == cEnd || *argument == '-' ) { argument++; break; } *arg_first = LOWER( *argument ); arg_first++; argument++; } *arg_first = STRING_NULL; while( isspace( *argument ) ) argument++; return argument; } void do_timecmd( CHAR_DATA * ch, char *argument ) { struct timeval sttime; struct timeval etime; static bool timing; extern CHAR_DATA *timechar; char arg[MAX_INPUT_LENGTH]; send_to_char( "Timing\r\n", ch ); if( timing ) return; one_argument( argument, arg ); if( !*arg ) { send_to_char( "No command to time.\r\n", ch ); return; } if( !str_cmp( arg, "update" ) ) { if( timechar ) send_to_char( "Another person is already timing updates.\r\n", ch ); else { timechar = ch; send_to_char( "Setting up to record next update loop.\r\n", ch ); } return; } set_char_color( AT_PLAIN, ch ); send_to_char( "Starting timer.\r\n", ch ); timing = TRUE; gettimeofday( &sttime, NULL ); interpret( ch, argument ); gettimeofday( &etime, NULL ); timing = FALSE; set_char_color( AT_PLAIN, ch ); send_to_char( "Timing complete.\r\n", ch ); subtract_times( &etime, &sttime ); ch_printf( ch, "Timing took %ld.%06ld seconds.\r\n", ( time_t ) etime.tv_sec, ( time_t ) etime.tv_usec ); return; } void start_timer( struct timeval *sttime ) { if( !sttime ) { bug( "Start_timer: NULL sttime.", 0 ); return; } gettimeofday( sttime, NULL ); return; } time_t end_timer( struct timeval * sttime ) { struct timeval etime; /* * Mark etime before checking stime, so that we get a better reading.. */ gettimeofday( &etime, NULL ); if( !sttime || ( !sttime->tv_sec && !sttime->tv_usec ) ) { bug( "End_timer: bad sttime.", 0 ); return 0; } subtract_times( &etime, sttime ); /* * sttime becomes time used */ *sttime = etime; return ( etime.tv_sec * 1000000 ) + etime.tv_usec; } void send_timer( struct timerset *vtime, CHAR_DATA * ch ) { struct timeval ntime; int carry; if( vtime->num_uses == 0 ) return; ntime.tv_sec = vtime->total_time.tv_sec / vtime->num_uses; carry = ( vtime->total_time.tv_sec % vtime->num_uses ) * 1000000; ntime.tv_usec = ( vtime->total_time.tv_usec + carry ) / vtime->num_uses; ch_printf( ch, "Has been used %d times this boot.\r\n", vtime->num_uses ); ch_printf( ch, "Time (in secs): min %ld.%06ld; avg: %ld.%06ld; max %ld.%06ld" "\r\n", vtime->min_time.tv_sec, vtime->min_time.tv_usec, ntime.tv_sec, ntime.tv_usec, vtime->max_time.tv_sec, vtime->max_time.tv_usec ); return; } void update_userec( struct timeval *time_used, struct timerset *userec ) { userec->num_uses++; if( !timerisset( &userec->min_time ) || timercmp( time_used, &userec->min_time, < ) ) { userec->min_time.tv_sec = time_used->tv_sec; userec->min_time.tv_usec = time_used->tv_usec; } if( !timerisset( &userec->max_time ) || timercmp( time_used, &userec->max_time, > ) ) { userec->max_time.tv_sec = time_used->tv_sec; userec->max_time.tv_usec = time_used->tv_usec; } userec->total_time.tv_sec += time_used->tv_sec; userec->total_time.tv_usec += time_used->tv_usec; while( userec->total_time.tv_usec >= 1000000 ) { userec->total_time.tv_sec++; userec->total_time.tv_usec -= 1000000; } return; } /* * This function checks the command against the command flags to make * sure they can use the command online. This allows the commands to be * edited online to allow or disallow certain situations. May be an idea * to rework this so we can edit the message sent back online, as well as * maybe a crude parsing language so we can add in new checks online without * haveing to hard-code them in. -- Shaddai August 25, 1997 */ /* Needed a global here */ char cmd_flag_buf[MAX_STRING_LENGTH]; char *check_cmd_flags( CHAR_DATA * ch, CMDTYPE * cmd ) { if( IS_AFFECTED( ch, AFF_POSSESS ) && IS_SET( cmd->flags, CMD_FLAG_POSSESS ) ) sprintf( cmd_flag_buf, "You can't %s while you are possessing someone!\r\n", cmd->name ); else cmd_flag_buf[0] = STRING_NULL; return cmd_flag_buf; }