release/src/router/samba/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 1994-1998
   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 #define NO_SYSLOG
  24
  25 #include "includes.h"
  26
  27 extern int DEBUGLEVEL;
  28
  29 extern struct in_addr ipzero;
  30
  31 static BOOL use_bcast = True;
  32 static BOOL got_bcast = False;
  33 static struct in_addr bcast_addr;
  34 static BOOL recursion_desired = False;
  35 static BOOL translate_addresses = False;
  36 static int ServerFD= -1;
  37 static int RootPort = 0;
  38 static BOOL find_status=False;
  39
  40 /****************************************************************************
  41   open the socket communication
  42   **************************************************************************/
  43 static BOOL open_sockets(void)
  44 {
  45   ServerFD = open_socket_in( SOCK_DGRAM,
  46                              (RootPort ? 137 :0),
  47                              3,
  48                              interpret_addr(lp_socket_address()), True );
  49
  50   if (ServerFD == -1)
  51     return(False);
  52
  53   set_socket_options(ServerFD,"SO_BROADCAST");
  54
  55   DEBUG(3, ("Socket opened.\n"));
  56   return True;
  57 }
  58
  59
  60 /****************************************************************************
  61 usage on the program
  62 ****************************************************************************/
  63 static void usage(void)
  64 {
  65   printf("Usage: nmblookup [-M] [-B bcast address] [-d debuglevel] name\n");
  66   printf("Version %s\n",VERSION);
  67   printf("\t-d debuglevel         set the debuglevel\n");
  68   printf("\t-B broadcast address  the address to use for broadcasts\n");
  69   printf("\t-U unicast   address  the address to use for unicast\n");
  70   printf("\t-M                    searches for a master browser\n");
  71   printf("\t-R                    set recursion desired in packet\n");
  72   printf("\t-S                    lookup node status as well\n");
  73   printf("\t-T                    translate IP addresses into names\n");
  74   printf("\t-r                    Use root port 137 (Win95 only replies to this)\n");
  75   printf("\t-A                    Do a node status on <name> as an IP Address\n");
  76   printf("\t-i NetBIOS scope      Use the given NetBIOS scope for name queries\n");
  77   printf("\t-s smb.conf file      Use the given path to the smb.conf file\n");
  78   printf("\t-h                    Print this help message.\n");
  79   printf("\n  If you specify -M and name is \"-\", nmblookup looks up __MSBROWSE__<01>\n");
  80   printf("\n");
  81 }
  82
  83
  84 /****************************************************************************
  85 send out one query
  86 ****************************************************************************/
  87 static BOOL query_one(char *lookup, unsigned int lookup_type)
  88 {
  89         int j, count;
  90         struct in_addr *ip_list=NULL;
  91
  92         if (got_bcast) {
  93                 printf("querying %s on %s\n", lookup, inet_ntoa(bcast_addr));
  94                 ip_list = name_query(ServerFD,lookup,lookup_type,use_bcast,
  95                                      use_bcast?True:recursion_desired,
  96                                      bcast_addr,&count,NULL);
  97         } else {
  98                 struct in_addr *bcast;
  99                 for (j=iface_count() - 1;
 100                      !ip_list && j >= 0;
 101                      j--) {
 102                         bcast = iface_n_bcast(j);
 103                         printf("querying %s on %s\n",
 104                                lookup, inet_ntoa(*bcast));
 105                         ip_list = name_query(ServerFD,lookup,lookup_type,
 106                                              use_bcast,
 107                                              use_bcast?True:recursion_desired,
 108                                              *bcast,&count,NULL);
 109                 }
 110         }
 111
 112         if (!ip_list) return False;
 113
 114         for (j=0;j<count;j++) {
 115                 if (translate_addresses) {
 116                         struct hostent *host = gethostbyaddr((char *)&ip_list[j], sizeof(ip_list[j]), AF_INET);
 117                         if (host) {
 118                                 printf("%s, ", host -> h_name);
 119                         }
 120                 }
 121                 printf("%s %s<%02x>\n",inet_ntoa(ip_list[j]),lookup, lookup_type);
 122         }
 123
 124         /* We can only do find_status if the ip address returned
 125            was valid - ie. name_query returned true.
 126         */
 127         if (find_status) {
 128                 printf("Looking up status of %s\n",inet_ntoa(ip_list[0]));
 129                 name_status(ServerFD,lookup,lookup_type,True,ip_list[0],NULL,NULL,NULL);
 130                 printf("\n");
 131         }
 132
 133         if (ip_list) free(ip_list);
 134
 135         return (ip_list != NULL);
 136 }
 137
 138
 139 /****************************************************************************
 140   main program
 141 ****************************************************************************/
 142 int main(int argc,char *argv[])
 143 {
 144   int opt;
 145   unsigned int lookup_type = 0x0;
 146   pstring lookup;
 147   extern int optind;
 148   extern char *optarg;
 149   BOOL find_master=False;
 150   int i;
 151   static pstring servicesf = CONFIGFILE;
 152   BOOL lookup_by_ip = False;
 153   int commandline_debuglevel = -2;
 154
 155   DEBUGLEVEL = 1;
 156   *lookup = 0;
 157
 158   TimeInit();
 159
 160   setup_logging(argv[0],True);
 161
 162   charset_initialise();
 163
 164   while ((opt = getopt(argc, argv, "d:B:U:i:s:SMrhART")) != EOF)
 165     switch (opt)
 166       {
 167       case 'B':
 168         bcast_addr = *interpret_addr2(optarg);
 169         got_bcast = True;
 170         use_bcast = True;
 171         break;
 172       case 'U':
 173         bcast_addr = *interpret_addr2(optarg);
 174         got_bcast = True;
 175         use_bcast = False;
 176         break;
 177       case 'T':
 178         translate_addresses = !translate_addresses;
 179         break;
 180       case 'i':
 181                 {
 182                         extern pstring global_scope;
 183                         pstrcpy(global_scope,optarg);
 184                         strupper(global_scope);
 185                 }
 186         break;
 187       case 'M':
 188         find_master = True;
 189         break;
 190       case 'S':
 191         find_status = True;
 192         break;
 193       case 'R':
 194         recursion_desired = True;
 195         break;
 196       case 'd':
 197         commandline_debuglevel = DEBUGLEVEL = atoi(optarg);
 198         break;
 199       case 's':
 200         pstrcpy(servicesf, optarg);
 201         break;
 202       case 'r':
 203         RootPort = -1;
 204         break;
 205       case 'h':
 206         usage();
 207         exit(0);
 208         break;
 209       case 'A':
 210         lookup_by_ip = True;
 211         break;
 212       default:
 213         usage();
 214         exit(1);
 215       }
 216
 217   if (argc < 2) {
 218     usage();
 219     exit(1);
 220   }
 221
 222   if (!lp_load(servicesf,True,False,False)) {
 223     fprintf(stderr, "Can't load %s - run testparm to debug it\n", servicesf);
 224   }
 225
 226   /*
 227    * Ensure we reset DEBUGLEVEL if someone specified it
 228    * on the command line.
 229    */
 230
 231   if(commandline_debuglevel != -2)
 232     DEBUGLEVEL = commandline_debuglevel;
 233
 234   load_interfaces();
 235   if (!open_sockets()) return(1);
 236
 237   for (i=optind;i<argc;i++)
 238   {
 239       char *p;
 240       struct in_addr ip;
 241
 242       fstrcpy(lookup,argv[i]);
 243
 244       if(lookup_by_ip)
 245       {
 246         fstrcpy(lookup,"*");
 247         ip = *interpret_addr2(argv[i]);
 248         printf("Looking up status of %s\n",inet_ntoa(ip));
 249         name_status(ServerFD,lookup,lookup_type,True,ip,NULL,NULL,NULL);
 250         printf("\n");
 251         continue;
 252       }
 253
 254       if (find_master) {
 255         if (*lookup == '-') {
 256           fstrcpy(lookup,"\01\02__MSBROWSE__\02");
 257           lookup_type = 1;
 258         } else {
 259           lookup_type = 0x1d;
 260         }
 261       }
 262
 263       p = strchr(lookup,'#');
 264
 265       if (p) {
 266         *p = 0;
 267         sscanf(p+1,"%x",&lookup_type);
 268       }
 269
 270       if (!query_one(lookup, lookup_type)) {
 271               printf("name_query failed to find name %s\n", lookup);
 272       }
 273   }
 274
 275   return(0);
 276 }