/* Unix SMB/CIFS implementation. NBT client - used to lookup netbios names Copyright (C) Andrew Tridgell 1994-1998 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "includes.h" extern BOOL AllowDebugChange; static BOOL give_flags = False; static BOOL use_bcast = True; static BOOL got_bcast = False; static struct in_addr bcast_addr; static BOOL recursion_desired = False; static BOOL translate_addresses = False; static int ServerFD= -1; static int RootPort = False; static BOOL find_status=False; /**************************************************************************** open the socket communication **************************************************************************/ static BOOL open_sockets(void) { ServerFD = open_socket_in( SOCK_DGRAM, (RootPort ? 137 : 0), (RootPort ? 0 : 3), interpret_addr(lp_socket_address()), True ); if (ServerFD == -1) return(False); set_socket_options( ServerFD, "SO_BROADCAST" ); DEBUG(3, ("Socket opened.\n")); return True; } /**************************************************************************** usage on the program ****************************************************************************/ static void usage(void) { d_printf("Usage: nmblookup [options] name\n"); d_printf("Version %s\n",VERSION); d_printf("\t-d debuglevel set the debuglevel\n"); d_printf("\t-B broadcast address the address to use for broadcasts\n"); d_printf("\t-f list the NMB flags returned\n"); d_printf("\t-U unicast address the address to use for unicast\n"); d_printf("\t-M searches for a master browser\n"); d_printf("\t-R set recursion desired in packet\n"); d_printf("\t-S lookup node status as well\n"); d_printf("\t-T translate IP addresses into names\n"); d_printf("\t-r Use root port 137 (Win95 only replies to this)\n"); d_printf("\t-A Do a node status on <name> as an IP Address\n"); d_printf("\t-i NetBIOS scope Use the given NetBIOS scope for name queries\n"); d_printf("\t-s smb.conf file Use the given path to the smb.conf file\n"); d_printf("\t-h Print this help message.\n"); d_printf("\n If you specify -M and name is \"-\", nmblookup looks up __MSBROWSE__<01>\n"); d_printf("\n"); } /**************************************************************************** turn a node status flags field into a string ****************************************************************************/ static char *node_status_flags(unsigned char flags) { static fstring ret; fstrcpy(ret,""); fstrcat(ret, (flags & 0x80) ? "<GROUP> " : " "); if ((flags & 0x60) == 0x00) fstrcat(ret,"B "); if ((flags & 0x60) == 0x20) fstrcat(ret,"P "); if ((flags & 0x60) == 0x40) fstrcat(ret,"M "); if ((flags & 0x60) == 0x60) fstrcat(ret,"H "); if (flags & 0x10) fstrcat(ret,"<DEREGISTERING> "); if (flags & 0x08) fstrcat(ret,"<CONFLICT> "); if (flags & 0x04) fstrcat(ret,"<ACTIVE> "); if (flags & 0x02) fstrcat(ret,"<PERMANENT> "); return ret; } /**************************************************************************** turn the NMB Query flags into a string ****************************************************************************/ static char *query_flags(int flags) { static fstring ret1; fstrcpy(ret1, ""); if (flags & NM_FLAGS_RS) fstrcat(ret1, "Response "); if (flags & NM_FLAGS_AA) fstrcat(ret1, "Authoritative "); if (flags & NM_FLAGS_TC) fstrcat(ret1, "Truncated "); if (flags & NM_FLAGS_RD) fstrcat(ret1, "Recursion_Desired "); if (flags & NM_FLAGS_RA) fstrcat(ret1, "Recursion_Available "); if (flags & NM_FLAGS_B) fstrcat(ret1, "Broadcast "); return ret1; } /**************************************************************************** do a node status query ****************************************************************************/ static void do_node_status(int fd, const char *name, int type, struct in_addr ip) { struct nmb_name nname; int count, i, j; struct node_status *status; fstring cleanname; d_printf("Looking up status of %s\n",inet_ntoa(ip)); make_nmb_name(&nname, name, type); status = node_status_query(fd,&nname,ip, &count); if (status) { for (i=0;i<count;i++) { fstrcpy(cleanname, status[i].name); for (j=0;cleanname[j];j++) { if (!isprint((int)cleanname[j])) cleanname[j] = '.'; } d_printf("\t%-15s <%02x> - %s\n", cleanname,status[i].type, node_status_flags(status[i].flags)); } SAFE_FREE(status); } d_printf("\n"); } /**************************************************************************** send out one query ****************************************************************************/ static BOOL query_one(const char *lookup, unsigned int lookup_type) { int j, count, flags = 0; struct in_addr *ip_list=NULL; if (got_bcast) { d_printf("querying %s on %s\n", lookup, inet_ntoa(bcast_addr)); ip_list = name_query(ServerFD,lookup,lookup_type,use_bcast, use_bcast?True:recursion_desired, bcast_addr,&count, &flags, NULL); } else { struct in_addr *bcast; for (j=iface_count() - 1; !ip_list && j >= 0; j--) { bcast = iface_n_bcast(j); d_printf("querying %s on %s\n", lookup, inet_ntoa(*bcast)); ip_list = name_query(ServerFD,lookup,lookup_type, use_bcast, use_bcast?True:recursion_desired, *bcast,&count, &flags, NULL); } } if (!ip_list) return False; if (give_flags) d_printf("Flags: %s\n", query_flags(flags)); for (j=0;j<count;j++) { if (translate_addresses) { struct hostent *host = gethostbyaddr((char *)&ip_list[j], sizeof(ip_list[j]), AF_INET); if (host) { d_printf("%s, ", host -> h_name); } } d_printf("%s %s<%02x>\n",inet_ntoa(ip_list[j]),lookup, lookup_type); } /* We can only do find_status if the ip address returned was valid - ie. name_query returned true. */ if (find_status) { do_node_status(ServerFD, lookup, lookup_type, ip_list[0]); } safe_free(ip_list); return (ip_list != NULL); } /**************************************************************************** main program ****************************************************************************/ int main(int argc,char *argv[]) { int opt; unsigned int lookup_type = 0x0; fstring lookup; extern int optind; extern char *optarg; BOOL find_master=False; int i; BOOL lookup_by_ip = False; int commandline_debuglevel = -2; DEBUGLEVEL = 1; /* Prevent smb.conf setting from overridding */ AllowDebugChange = False; *lookup = 0; setup_logging(argv[0], DEBUG_STDOUT); while ((opt = getopt(argc, argv, "d:fB:U:i:s:SMrhART")) != EOF) switch (opt) { case 'B': bcast_addr = *interpret_addr2(optarg); got_bcast = True; use_bcast = True; break; case 'f': give_flags = True; break; case 'U': bcast_addr = *interpret_addr2(optarg); got_bcast = True; use_bcast = False; break; case 'T': translate_addresses = !translate_addresses; break; case 'i': lp_set_cmdline("netbios scope", optarg); break; case 'M': find_master = True; break; case 'S': find_status = True; break; case 'R': recursion_desired = True; break; case 'd': commandline_debuglevel = DEBUGLEVEL = atoi(optarg); break; case 's': pstrcpy(dyn_CONFIGFILE, optarg); break; case 'r': RootPort = True; break; case 'h': usage(); exit(0); break; case 'A': lookup_by_ip = True; break; default: usage(); exit(1); } if (argc < 2) { usage(); exit(1); } if (!lp_load(dyn_CONFIGFILE,True,False,False)) { fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE); } /* * Ensure we reset DEBUGLEVEL if someone specified it * on the command line. */ if(commandline_debuglevel != -2) DEBUGLEVEL = commandline_debuglevel; load_interfaces(); if (!open_sockets()) return(1); for (i=optind;i<argc;i++) { char *p; struct in_addr ip; fstrcpy(lookup,argv[i]); if(lookup_by_ip) { fstrcpy(lookup,"*"); ip = *interpret_addr2(argv[i]); do_node_status(ServerFD, lookup, lookup_type, ip); continue; } if (find_master) { if (*lookup == '-') { fstrcpy(lookup,"\01\02__MSBROWSE__\02"); lookup_type = 1; } else { lookup_type = 0x1d; } } p = strchr_m(lookup,'#'); if (p) { *p = '\0'; sscanf(++p,"%x",&lookup_type); } if (!query_one(lookup, lookup_type)) { d_printf( "name_query failed to find name %s", lookup ); if( 0 != lookup_type ) d_printf( "#%02x", lookup_type ); d_printf( "\n" ); } } return(0); }