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