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) {
  52                 control_fp = fopen("citadel.control", "wb+");
  53                 if (control_fp != NULL) {
  54                         memset(&CitControl, 0, sizeof(struct CitControl));
  55                         fwrite(&CitControl, sizeof(struct CitControl),
  56                                 1, control_fp);
  57                         rewind(control_fp);
  58                 }
  59         }
  60         if (control_fp == NULL) {
  61                 lprintf(1, "ERROR opening citadel.control: %s\n",
  62                         strerror(errno));
  63                 return;
  64         }
  65
  66         rewind(control_fp);
  67         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
  68         }
  69
  70 /*
  71  * put_control  -  write the control record to disk.
  72  */
  73 void put_control(void) {
  74
  75         if (control_fp != NULL) {
  76                 rewind(control_fp);
  77                 fwrite(&CitControl, sizeof(struct CitControl), 1, control_fp);
  78                 fflush(control_fp);
  79                 }
  80         }
  81
  82
  83 /*
  84  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
  85  */
  86 long get_new_message_number(void) {
  87         begin_critical_section(S_CONTROL);
  88         get_control();
  89         ++CitControl.MMhighest;
  90         put_control();
  91         end_critical_section(S_CONTROL);
  92         return(CitControl.MMhighest);
  93         }
  94
  95
  96 /*
  97  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
  98  */
  99 long get_new_user_number(void) {
 100         begin_critical_section(S_CONTROL);
 101         get_control();
 102         ++CitControl.MMnextuser;
 103         put_control();
 104         end_critical_section(S_CONTROL);
 105         return(CitControl.MMnextuser);
 106         }
 107
 108
 109
 110 /*
 111  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 112  */
 113 long get_new_room_number(void) {
 114         begin_critical_section(S_CONTROL);
 115         get_control();
 116         ++CitControl.MMnextroom;
 117         put_control();
 118         end_critical_section(S_CONTROL);
 119         return(CitControl.MMnextroom);
 120         }
 121
 122
 123
 124 /*
 125  * Get or set global configuration options
 126  */
 127 void cmd_conf(char *argbuf) {
 128         char cmd[256];
 129         char buf[256];
 130         int a;
 131
 132         if (!(CC->logged_in)) {
 133                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 134                 return;
 135                 }
 136
 137         if (CC->usersupp.axlevel < 6) {
 138                 cprintf("%d Higher access required.\n",
 139                         ERROR+HIGHER_ACCESS_REQUIRED);
 140                 return;
 141                 }
 142
 143         extract(cmd, argbuf, 0);
 144         if (!strcasecmp(cmd, "GET")) {
 145                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 146                 cprintf("%s\n", config.c_nodename);
 147                 cprintf("%s\n", config.c_fqdn);
 148                 cprintf("%s\n", config.c_humannode);
 149                 cprintf("%s\n", config.c_phonenum);
 150                 cprintf("%d\n", config.c_creataide);
 151                 cprintf("%d\n", config.c_sleeping);
 152                 cprintf("%d\n", config.c_initax);
 153                 cprintf("%d\n", config.c_regiscall);
 154                 cprintf("%d\n", config.c_twitdetect);
 155                 cprintf("%s\n", config.c_twitroom);
 156                 cprintf("%s\n", config.c_moreprompt);
 157                 cprintf("%d\n", config.c_restrict);
 158                 cprintf("%s\n", config.c_bbs_city);
 159                 cprintf("%s\n", config.c_sysadm);
 160                 cprintf("%d\n", config.c_maxsessions);
 161                 cprintf("%s\n", config.c_net_password);
 162                 cprintf("%d\n", config.c_userpurge);
 163                 cprintf("%d\n", config.c_roompurge);
 164                 cprintf("%s\n", config.c_logpages);
 165                 cprintf("%d\n", config.c_createax);
 166                 cprintf("%d\n", config.c_maxmsglen);
 167                 cprintf("000\n");
 168                 }
 169
 170         else if (!strcasecmp(cmd, "SET")) {
 171                 cprintf("%d Send configuration...\n", SEND_LISTING);
 172                 a = 0;
 173                 while (client_gets(buf), strcmp(buf, "000")) {
 174                     switch(a) {
 175                         case 0: safestrncpy(config.c_nodename, buf,
 176                                         sizeof config.c_nodename);
 177                                 break;
 178                         case 1: safestrncpy(config.c_fqdn, buf,
 179                                         sizeof config.c_fqdn);
 180                                 break;
 181                         case 2: safestrncpy(config.c_humannode, buf,
 182                                         sizeof config.c_humannode);
 183                                 break;
 184                         case 3: safestrncpy(config.c_phonenum, buf,
 185                                         sizeof config.c_phonenum);
 186                                 break;
 187                         case 4: config.c_creataide = atoi(buf);
 188                                 break;
 189                         case 5: config.c_sleeping = atoi(buf);
 190                                 break;
 191                         case 6: config.c_initax = atoi(buf);
 192                                 if (config.c_initax < 1) config.c_initax = 1;
 193                                 if (config.c_initax > 6) config.c_initax = 6;
 194                                 break;
 195                         case 7: config.c_regiscall = atoi(buf);
 196                                 if (config.c_regiscall != 0)
 197                                         config.c_regiscall = 1;
 198                                 break;
 199                         case 8: config.c_twitdetect = atoi(buf);
 200                                 if (config.c_twitdetect != 0)
 201                                         config.c_twitdetect = 1;
 202                                 break;
 203                         case 9: safestrncpy(config.c_twitroom, buf,
 204                                         sizeof config.c_twitroom);
 205                                 break;
 206                         case 10: safestrncpy(config.c_moreprompt, buf,
 207                                         sizeof config.c_moreprompt);
 208                                 break;
 209                         case 11: config.c_restrict = atoi(buf);
 210                                 if (config.c_restrict != 0)
 211                                         config.c_restrict = 1;
 212                                 break;
 213                         case 12: safestrncpy(config.c_bbs_city, buf,
 214                                         sizeof config.c_bbs_city);
 215                                 break;
 216                         case 13: safestrncpy(config.c_sysadm, buf,
 217                                         sizeof config.c_sysadm);
 218                                 break;
 219                         case 14: config.c_maxsessions = atoi(buf);
 220                                 if (config.c_maxsessions < 1)
 221                                         config.c_maxsessions = 1;
 222                                 break;
 223                         case 15: safestrncpy(config.c_net_password, buf,
 224                                         sizeof config.c_net_password);
 225                                 break;
 226                         case 16: config.c_userpurge = atoi(buf);
 227                                 break;
 228                         case 17: config.c_roompurge = atoi(buf);
 229                                 break;
 230                         case 18: safestrncpy(config.c_logpages, buf,
 231                                         sizeof config.c_logpages);
 232                                 break;
 233                         case 19: config.c_createax = atoi(buf);
 234                                 if (config.c_createax < 1)
 235                                         config.c_createax = 1;
 236                                 if (config.c_createax > 6)
 237                                         config.c_createax = 6;
 238                                 break;
 239                         case 20: if (atoi(buf) >= 8192)
 240                                         config.c_maxmsglen = atoi(buf);
 241                                 break;
 242                         }
 243                     ++a;
 244                     }
 245                 put_config();
 246                 snprintf(buf,sizeof buf,
 247                          "Global system configuration edited by %s\n",
 248                          CC->curr_user);
 249                 aide_message(buf);
 250
 251                 if (strlen(config.c_logpages) > 0)
 252                         create_room(config.c_logpages, 4, "", 0);
 253                 }
 254
 255         else {
 256                 cprintf("%d The only valid options are GET and SET.\n",
 257                         ERROR+ILLEGAL_VALUE);
 258                 }
 259         }