/release/src/router/samba3/source/utils/nmblookup.c
C | 298 lines | 212 code | 44 blank | 42 comment | 51 complexity | 4a717d7c55522cd574a0db2322becd20 MD5 | raw file
- /*
- Unix SMB/CIFS implementation.
- NBT client - used to lookup netbios names
- Copyright (C) Andrew Tridgell 1994-1998
- Copyright (C) Jelmer Vernooij 2003 (Conversion to popt)
-
- 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;
- }
- /****************************************************************************
- 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;
- NODE_STATUS_STRUCT *status;
- struct node_status_extra extra;
- 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, &extra);
- if (status) {
- for (i=0;i<count;i++) {
- pull_ascii_fstring(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));
- }
- d_printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
- extra.mac_addr[0], extra.mac_addr[1],
- extra.mac_addr[2], extra.mac_addr[3],
- extra.mac_addr[4], extra.mac_addr[5]);
- d_printf("\n");
- SAFE_FREE(status);
- } else {
- d_printf("No reply from %s\n\n",inet_ntoa(ip));
- }
- }
- /****************************************************************************
- 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[j]);
- }
- }
- 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;
- static BOOL find_master=False;
- static BOOL lookup_by_ip = False;
- poptContext pc;
- struct poptOption long_options[] = {
- POPT_AUTOHELP
- { "broadcast", 'B', POPT_ARG_STRING, NULL, 'B', "Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
- { "flags", 'f', POPT_ARG_VAL, &give_flags, True, "List the NMB flags returned" },
- { "unicast", 'U', POPT_ARG_STRING, NULL, 'U', "Specify address to use for unicast" },
- { "master-browser", 'M', POPT_ARG_VAL, &find_master, True, "Search for a master browser" },
- { "recursion", 'R', POPT_ARG_VAL, &recursion_desired, True, "Set recursion desired in package" },
- { "status", 'S', POPT_ARG_VAL, &find_status, True, "Lookup node status as well" },
- { "translate", 'T', POPT_ARG_NONE, NULL, 'T', "Translate IP addresses into names" },
- { "root-port", 'r', POPT_ARG_VAL, &RootPort, True, "Use root port 137 (Win95 only replies to this)" },
- { "lookup-by-ip", 'A', POPT_ARG_VAL, &lookup_by_ip, True, "Do a node status on <name> as an IP Address" },
- POPT_COMMON_SAMBA
- POPT_COMMON_CONNECTION
- { 0, 0, 0, 0 }
- };
-
- *lookup = 0;
- load_case_tables();
- setup_logging(argv[0],True);
- pc = poptGetContext("nmblookup", argc, (const char **)argv, long_options,
- POPT_CONTEXT_KEEP_FIRST);
- poptSetOtherOptionHelp(pc, "<NODE> ...");
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case 'B':
- bcast_addr = *interpret_addr2(poptGetOptArg(pc));
- got_bcast = True;
- use_bcast = True;
- break;
- case 'U':
- bcast_addr = *interpret_addr2(poptGetOptArg(pc));
- got_bcast = True;
- use_bcast = False;
- break;
- case 'T':
- translate_addresses = !translate_addresses;
- break;
- }
- }
- poptGetArg(pc); /* Remove argv[0] */
- if(!poptPeekArg(pc)) {
- poptPrintUsage(pc, stderr, 0);
- exit(1);
- }
- if (!lp_load(dyn_CONFIGFILE,True,False,False,True)) {
- fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
- }
- load_interfaces();
- if (!open_sockets()) return(1);
- while(poptPeekArg(pc))
- {
- char *p;
- struct in_addr ip;
- fstrcpy(lookup,poptGetArg(pc));
- if(lookup_by_ip)
- {
- ip = *interpret_addr2(lookup);
- fstrcpy(lookup,"*");
- 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" );
- }
- }
- poptFreeContext(pc);
- return(0);
- }