citadel/control.c

   1 /*
   2  * control.c
   3  *
   4  * This module handles states which are global to the entire server.
   5  *
   6  * $Id$
   7  *
   8  */
   9
  10 #include "sysdep.h"
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13 #include <stdio.h>
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <time.h>
  17 #include <ctype.h>
  18 #include <string.h>
  19 #include <errno.h>
  20 #include <limits.h>
  21 #ifdef HAVE_PTHREAD_H
  22 #include <pthread.h>
  23 #endif
  24 #include <syslog.h>
  25 #include "citadel.h"
  26 #include "server.h"
  27 #include "control.h"
  28 #include "sysdep_decls.h"
  29 #include "support.h"
  30 #include "config.h"
  31 #include "msgbase.h"
  32 #include "tools.h"
  33 #include "room_ops.h"
  34
  35 struct CitControl CitControl;
  36 struct config config;
  37 FILE *control_fp = NULL;
  38
  39 /*
  40  * get_control  -  read the control record into memory.
  41  */
  42 void get_control(void) {
  43
  44         /* Zero it out.  If the control record on disk is missing or short,
  45          * the system functions with all control record fields initialized
  46          * to zero.
  47          */
  48         memset(&CitControl, 0, sizeof(struct CitControl));
  49         if (control_fp == NULL)
  50                 control_fp = fopen("citadel.control", "rb+");
  51         if (control_fp == NULL) return;
  52
  53         rewind(control_fp);
  54         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
  55         }
  56
  57 /*
  58  * put_control  -  write the control record to disk.
  59  */
  60 void put_control(void) {
  61
  62         if (control_fp != NULL) {
  63                 rewind(control_fp);
  64                 fwrite(&CitControl, sizeof(struct CitControl), 1, control_fp);
  65                 fflush(control_fp);
  66                 }
  67         }
  68
  69
  70 /*
  71  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
  72  */
  73 long get_new_message_number(void) {
  74         begin_critical_section(S_CONTROL);
  75         get_control();
  76         ++CitControl.MMhighest;
  77         put_control();
  78         end_critical_section(S_CONTROL);
  79         return(CitControl.MMhighest);
  80         }
  81
  82
  83 /*
  84  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
  85  */
  86 long get_new_user_number(void) {
  87         begin_critical_section(S_CONTROL);
  88         get_control();
  89         ++CitControl.MMnextuser;
  90         put_control();
  91         end_critical_section(S_CONTROL);
  92         return(CitControl.MMnextuser);
  93         }
  94
  95
  96
  97 /*
  98  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
  99  */
 100 long get_new_room_number(void) {
 101         begin_critical_section(S_CONTROL);
 102         get_control();
 103         ++CitControl.MMnextroom;
 104         put_control();
 105         end_critical_section(S_CONTROL);
 106         return(CitControl.MMnextroom);
 107         }
 108
 109
 110
 111 /*
 112  * Get or set global configuration options
 113  */
 114 void cmd_conf(char *argbuf) {
 115         char cmd[256];
 116         char buf[256];
 117         int a;
 118
 119         if (!(CC->logged_in)) {
 120                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 121                 return;
 122                 }
 123
 124         if (CC->usersupp.axlevel < 6) {
 125                 cprintf("%d Higher access required.\n",
 126                         ERROR+HIGHER_ACCESS_REQUIRED);
 127                 return;
 128                 }
 129
 130         extract(cmd, argbuf, 0);
 131         if (!strcasecmp(cmd, "GET")) {
 132                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 133                 cprintf("%s\n", config.c_nodename);
 134                 cprintf("%s\n", config.c_fqdn);
 135                 cprintf("%s\n", config.c_humannode);
 136                 cprintf("%s\n", config.c_phonenum);
 137                 cprintf("%d\n", config.c_creataide);
 138                 cprintf("%d\n", config.c_sleeping);
 139                 cprintf("%d\n", config.c_initax);
 140                 cprintf("%d\n", config.c_regiscall);
 141                 cprintf("%d\n", config.c_twitdetect);
 142                 cprintf("%s\n", config.c_twitroom);
 143                 cprintf("%s\n", config.c_moreprompt);
 144                 cprintf("%d\n", config.c_restrict);
 145                 cprintf("%s\n", config.c_bbs_city);
 146                 cprintf("%s\n", config.c_sysadm);
 147                 cprintf("%d\n", config.c_maxsessions);
 148                 cprintf("%s\n", config.c_net_password);
 149                 cprintf("%d\n", config.c_userpurge);
 150                 cprintf("%d\n", config.c_roompurge);
 151                 cprintf("%s\n", config.c_logpages);
 152                 cprintf("%d\n", config.c_createax);
 153                 cprintf("000\n");
 154                 }
 155
 156         else if (!strcasecmp(cmd, "SET")) {
 157                 cprintf("%d Send configuration...\n", SEND_LISTING);
 158                 a = 0;
 159                 while (client_gets(buf), strcmp(buf, "000")) {
 160                     switch(a) {
 161                         case 0: strncpy(config.c_nodename, buf, 16);
 162                                 break;
 163                         case 1: strncpy(config.c_fqdn, buf, 64);
 164                                 break;
 165                         case 2: strncpy(config.c_humannode, buf, 21);
 166                                 break;
 167                         case 3: strncpy(config.c_phonenum, buf, 16);
 168                                 break;
 169                         case 4: config.c_creataide = atoi(buf);
 170                                 break;
 171                         case 5: config.c_sleeping = atoi(buf);
 172                                 break;
 173                         case 6: config.c_initax = atoi(buf);
 174                                 if (config.c_initax < 1) config.c_initax = 1;
 175                                 if (config.c_initax > 6) config.c_initax = 6;
 176                                 break;
 177                         case 7: config.c_regiscall = atoi(buf);
 178                                 if (config.c_regiscall != 0)
 179                                         config.c_regiscall = 1;
 180                                 break;
 181                         case 8: config.c_twitdetect = atoi(buf);
 182                                 if (config.c_twitdetect != 0)
 183                                         config.c_twitdetect = 1;
 184                                 break;
 185                         case 9: strncpy(config.c_twitroom,
 186                                         buf, ROOMNAMELEN);
 187                                 break;
 188                         case 10: strncpy(config.c_moreprompt, buf, 80);
 189                                 break;
 190                         case 11: config.c_restrict = atoi(buf);
 191                                 if (config.c_restrict != 0)
 192                                         config.c_restrict = 1;
 193                                 break;
 194                         case 12: strncpy(config.c_bbs_city, buf, 32);
 195                                 break;
 196                         case 13: strncpy(config.c_sysadm, buf, 26);
 197                                 break;
 198                         case 14: config.c_maxsessions = atoi(buf);
 199                                 if (config.c_maxsessions < 1)
 200                                         config.c_maxsessions = 1;
 201                                 break;
 202                         case 15: strncpy(config.c_net_password, buf, 20);
 203                                 break;
 204                         case 16: config.c_userpurge = atoi(buf);
 205                                 break;
 206                         case 17: config.c_roompurge = atoi(buf);
 207                                 break;
 208                         case 18: strncpy(config.c_logpages,
 209                                         buf, ROOMNAMELEN);
 210                                 break;
 211                         case 19: config.c_createax = atoi(buf);
 212                                 if (config.c_createax < 1)
 213                                         config.c_createax = 1;
 214                                 if (config.c_createax > 6)
 215                                         config.c_createax = 6;
 216                                 break;
 217                                 }
 218                     ++a;
 219                     }
 220                 put_config();
 221                 snprintf(buf,sizeof buf,
 222                          "Global system configuration edited by %s",
 223                          CC->curr_user);
 224                 aide_message(buf);
 225
 226                 if (strlen(config.c_logpages) > 0)
 227                         create_room(config.c_logpages, 4, "", 0);
 228                 }
 229
 230         else {
 231                 cprintf("%d The only valid options are GET and SET.\n",
 232                         ERROR+ILLEGAL_VALUE);
 233                 }
 234         }