src/setup/misc.c

   1 /* SmoothWall setup program.
   2  *
   3  * This program is distributed under the terms of the GNU General Public
   4  * Licence.  See the file COPYING for details.
   5  *
   6  * (c) Lawrence Manning, 2001
   7  * Misc. stuff for the lib.
   8  *
   9  */
  10
  11 // Translation
  12 #include <libintl.h>
  13 #define _(x) dgettext("setup", x)
  14
  15 #include "setup.h"
  16
  17 extern FILE *flog;
  18 extern char *mylog;
  19
  20 extern int automode;
  21
  22 /* This will rewrite /etc/hosts, /etc/hosts.*, and the apache ServerName file. */
  23 int writehostsfiles(void)
  24 {
  25         char address[STRING_SIZE] = "";
  26         char netaddress[STRING_SIZE] = "";
  27         char netmask[STRING_SIZE] = "";
  28         char message[1000];
  29         FILE *file, *hosts;
  30         struct keyvalue *kv;
  31         char hostname[STRING_SIZE];
  32         char domainname[STRING_SIZE] = "localdomain";
  33         char commandstring[STRING_SIZE];
  34         char buffer[STRING_SIZE];
  35
  36         kv = initkeyvalues();
  37         if (!(readkeyvalues(kv, CONFIG_ROOT "/ethernet/settings")))
  38         {
  39                 freekeyvalues(kv);
  40                 errorbox(_("Unable to open settings file"));
  41                 return 0;
  42         }
  43         findkey(kv, "GREEN_ADDRESS", address);
  44         findkey(kv, "GREEN_NETADDRESS", netaddress);
  45         findkey(kv, "GREEN_NETMASK", netmask);
  46         freekeyvalues(kv);
  47
  48         kv = initkeyvalues();
  49         if (!(readkeyvalues(kv, CONFIG_ROOT "/main/settings")))
  50         {
  51                 freekeyvalues(kv);
  52                 errorbox(_("Unable to open settings file"));
  53                 return 0;
  54         }
  55         strcpy(hostname, SNAME );
  56         findkey(kv, "HOSTNAME", hostname);
  57         findkey(kv, "DOMAINNAME", domainname);
  58         freekeyvalues(kv);
  59
  60         if (!(file = fopen(CONFIG_ROOT "/main/hosts", "r")))
  61         {
  62                 errorbox(_("Unable to open main hosts file."));
  63                 return 0;
  64         }
  65         if (!(hosts = fopen("/etc/hosts", "w")))
  66         {
  67                 errorbox(_("Unable to write /etc/hosts."));
  68                 return 0;
  69         }
  70         fprintf(hosts, "127.0.0.1\tlocalhost\n");
  71         if (strlen(domainname))
  72                 fprintf(hosts, "%s\t%s.%s\t%s\n",address,hostname,domainname,hostname);
  73         else
  74                 fprintf(hosts, "%s\t%s\n",address,hostname);
  75         while (fgets(buffer, STRING_SIZE, file))
  76         {
  77                 char *token, *ip, *host, *domain;
  78
  79                 buffer[strlen(buffer) - 1] = 0;
  80
  81                 token = strtok(buffer, ",");
  82
  83                 ip = strtok(NULL, ",");
  84                 host = strtok(NULL, ",");
  85                 domain = strtok(NULL, ",");
  86
  87                 if (!(ip && host))
  88                         break;
  89
  90                 if (strlen(ip) < 7 || strlen(ip) > 15
  91                  || strspn(ip, "0123456789.") != strlen(ip))
  92                         break;
  93
  94                 if (strspn(host, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-") != strlen(host))
  95                         break;
  96
  97                 if (domain)
  98                         fprintf(hosts, "%s\t%s.%s\t%s\n",ip,host,domain,host);
  99                 else
 100                         fprintf(hosts, "%s\t%s\n",ip,host);
 101         }
 102         fclose(file);
 103         fclose(hosts);
 104
 105         /* TCP wrappers stuff. */
 106         if (!(file = fopen("/etc/hosts.deny", "w")))
 107         {
 108                 errorbox(_("Unable to write /etc/hosts.deny."));
 109                 return 0;
 110         }
 111         fprintf(file, "ALL : ALL\n");
 112         fclose(file);
 113
 114         if (!(file = fopen("/etc/hosts.allow", "w")))
 115         {
 116                 errorbox(_("Unable to write /etc/hosts.allow."));
 117                 return 0;
 118         }
 119         fprintf(file, "sshd : ALL\n");
 120         fprintf(file, "ALL  : localhost\n");
 121         fprintf(file, "ALL  : %s/%s\n", netaddress, netmask);
 122         fclose(file);
 123
 124         sprintf(commandstring, "/bin/hostname %s.%s", hostname, domainname);
 125         if (mysystem(NULL, commandstring))
 126         {
 127                 errorbox(_("Unable to set hostname."));
 128                 return 0;
 129         }
 130
 131         return 1;
 132 }