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