source/utils/nmblookup.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    NBT client - used to lookup netbios names
   5    Copyright (C) Andrew Tridgell 1994-1995
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 #ifdef SYSLOG
  24 #undef SYSLOG
  25 #endif
  26
  27 #include "includes.h"
  28
  29 extern int DEBUGLEVEL;
  30
  31 extern pstring scope;
  32
  33 extern pstring myhostname;
  34 extern struct in_addr ipzero;
  35
  36 int ServerFD= -1;
  37
  38 /****************************************************************************
  39   open the socket communication
  40   **************************************************************************/
  41 static BOOL open_sockets(void)
  42 {
  43   struct hostent *hp;
  44
  45   /* get host info */
  46   if ((hp = Get_Hostbyname(myhostname)) == 0)
  47     {
  48       DEBUG(0,( "Get_Hostbyname: Unknown host. %s\n",myhostname));
  49       return False;
  50     }
  51
  52   ServerFD = open_socket_in(SOCK_DGRAM, 0,3);
  53
  54   if (ServerFD == -1)
  55     return(False);
  56
  57   set_socket_options(ServerFD,"SO_BROADCAST");
  58
  59   DEBUG(3, ("Socket opened.\n"));
  60   return True;
  61 }
  62
  63
  64 /****************************************************************************
  65   initialise connect, service and file structs
  66 ****************************************************************************/
  67 static BOOL init_structs(void )
  68 {
  69   if (!get_myname(myhostname,NULL))
  70     return(False);
  71
  72   return True;
  73 }
  74
  75 /****************************************************************************
  76 usage on the program
  77 ****************************************************************************/
  78 static void usage(void)
  79 {
  80   printf("Usage: nmblookup [-M] [-B bcast address] [-d debuglevel] name\n");
  81   printf("Version %s\n",VERSION);
  82   printf("\t-d debuglevel         set the debuglevel\n");
  83   printf("\t-B broadcast address  the address to use for broadcasts\n");
  84   printf("\t-M                    searches for a master browser\n");
  85   printf("\t-S                    lookup node status as well\n");
  86   printf("\n");
  87 }
  88
  89
  90 /****************************************************************************
  91   main program
  92 ****************************************************************************/
  93 int main(int argc,char *argv[])
  94 {
  95   int opt;
  96   unsigned int lookup_type = 0x0;
  97   pstring lookup;
  98   extern int optind;
  99   extern char *optarg;
 100   BOOL find_master=False;
 101   BOOL find_status=False;
 102   int i;
 103
 104   DEBUGLEVEL = 1;
 105   *lookup = 0;
 106
 107   TimeInit();
 108
 109   setup_logging(argv[0],True);
 110
 111   charset_initialise();
 112
 113   while ((opt = getopt(argc, argv, "p:d:B:i:SMh")) != EOF)
 114     switch (opt)
 115       {
 116       case 'B':
 117         iface_set_default(NULL,optarg,NULL);
 118         break;
 119       case 'i':
 120         strcpy(scope,optarg);
 121         strupper(scope);
 122         break;
 123       case 'M':
 124         find_master = True;
 125         break;
 126       case 'S':
 127         find_status = True;
 128         break;
 129       case 'd':
 130         DEBUGLEVEL = atoi(optarg);
 131         break;
 132       case 'h':
 133         usage();
 134         exit(0);
 135         break;
 136       default:
 137         usage();
 138         exit(1);
 139       }
 140
 141   if (argc < 2) {
 142     usage();
 143     exit(1);
 144   }
 145
 146   load_interfaces();
 147   init_structs();
 148   if (!open_sockets()) return(1);
 149
 150   DEBUG(1,("Sending queries to %s\n",inet_ntoa(*iface_bcast(ipzero))));
 151
 152
 153   for (i=optind;i<argc;i++)
 154     {
 155       BOOL bcast = True;
 156       int retries = 2;
 157       char *p;
 158       struct in_addr ip;
 159
 160       strcpy(lookup,argv[i]);
 161
 162       if (find_master) {
 163         if (*lookup == '-') {
 164           strcpy(lookup,"\01\02__MSBROWSE__\02");
 165           lookup_type = 1;
 166         } else {
 167           lookup_type = 0x1d;
 168         }
 169       }
 170
 171       p = strchr(lookup,'#');
 172
 173       if (p) {
 174         *p = 0;
 175         sscanf(p+1,"%x",&lookup_type);
 176         bcast = False;
 177         retries = 1;
 178       }
 179
 180       if (name_query(ServerFD,lookup,lookup_type,bcast,True,
 181                      *iface_bcast(ipzero),&ip,NULL))
 182         {
 183           printf("%s %s\n",inet_ntoa(ip),lookup);
 184           if (find_status)
 185             {
 186               printf("Looking up status of %s\n",inet_ntoa(ip));
 187               name_status(ServerFD,lookup,lookup_type,True,ip,NULL,NULL,NULL);
 188               printf("\n");
 189             }
 190       } else {
 191         printf("couldn't find name %s\n",lookup);
 192       }
 193     }
 194
 195   return(0);
 196 }