2 Samba Unix/Linux SMB client library
4 Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 #include "../utils/net.h"
23 int net_lookup_usage(int argc, const char **argv)
26 " net lookup host HOSTNAME <type>\n\tgives IP for a hostname\n\n"
27 " net lookup ldap [domain]\n\tgives IP of domain's ldap server\n\n"
28 " net lookup kdc [realm]\n\tgives IP of realm's kerberos KDC\n\n"
29 " net lookup dc [domain]\n\tgives IP of domains Domain Controllers\n\n"
30 " net lookup master [domain|wg]\n\tgive IP of master browser\n\n"
35 /* lookup a hostname giving an IP */
36 static int net_lookup_host(int argc, const char **argv)
41 if (argc == 0) return net_lookup_usage(argc, argv);
42 if (argc > 1) name_type = strtol(argv[1], NULL, 0);
44 if (!resolve_name(argv[0], &ip, name_type)) {
45 /* we deliberately use DEBUG() here to send it to stderr
46 so scripts aren't mucked up */
47 DEBUG(0,("Didn't find %s#%02x\n", argv[0], name_type));
51 d_printf("%s\n", inet_ntoa(ip));
55 static void print_ldap_srvlist(char *srvlist)
63 next = strchr(cur,':');
64 if (next) *next++='\0';
65 printit = resolve_name(cur, &ip, 0x20);
67 next=cur ? strchr(cur,' ') :NULL;
71 d_printf("%s:%s\n", inet_ntoa(ip), cur?cur:"");
77 static int net_lookup_ldap(int argc, const char **argv)
84 struct hostent *hostent;
89 domain = opt_target_workgroup;
91 DEBUG(9, ("Lookup up ldap for domain %s\n", domain));
92 rc = ldap_domain2hostlist(domain, &srvlist);
93 if ((rc == LDAP_SUCCESS) && srvlist) {
94 print_ldap_srvlist(srvlist);
98 DEBUG(9, ("Looking up DC for domain %s\n", domain));
99 if (!get_dc_list(True, domain, &addr, &count))
102 hostent = gethostbyaddr((char *) &addr->s_addr, sizeof(addr->s_addr),
107 DEBUG(9, ("Found DC with DNS name %s\n", hostent->h_name));
108 domain = strchr(hostent->h_name, '.');
113 DEBUG(9, ("Looking up ldap for domain %s\n", domain));
114 rc = ldap_domain2hostlist(domain, &srvlist);
115 if ((rc == LDAP_SUCCESS) && srvlist) {
116 print_ldap_srvlist(srvlist);
121 DEBUG(1,("No LDAP support\n"));
125 static int net_lookup_dc(int argc, const char **argv)
127 struct in_addr *ip_list;
128 char *pdc_str = NULL;
129 const char *domain=opt_target_workgroup;
136 if (!get_dc_list(True, domain, &ip_list, &count))
139 asprintf(&pdc_str, "%s", inet_ntoa(*ip_list));
140 d_printf("%s\n", pdc_str);
142 if (!get_dc_list(False, domain, &ip_list, &count)) {
146 for (i=0;i<count;i++) {
147 char *dc_str = inet_ntoa(ip_list[i]);
148 if (!strequal(pdc_str, dc_str))
149 d_printf("%s\n", dc_str);
155 static int net_lookup_master(int argc, const char **argv)
157 struct in_addr master_ip;
158 const char *domain=opt_target_workgroup;
163 if (!find_master_ip(domain, &master_ip))
165 d_printf("%s\n", inet_ntoa(master_ip));
169 static int net_lookup_kdc(int argc, const char **argv)
174 struct sockaddr_in *addrs;
179 rc = krb5_init_context(&ctx);
181 DEBUG(1,("krb5_init_context failed (%s)\n",
187 realm.data = (krb5_pointer) argv[0];
188 realm.length = strlen(argv[0]);
189 } else if (lp_realm() && *lp_realm()) {
190 realm.data = (krb5_pointer) lp_realm();
191 realm.length = strlen(realm.data);
193 rc = krb5_get_host_realm(ctx, NULL, &realms);
195 DEBUG(1,("krb5_gethost_realm failed (%s)\n",
199 realm.data = (krb5_pointer) *realms;
200 realm.length = strlen(realm.data);
203 rc = krb5_locate_kdc(ctx, &realm, &addrs, &num_kdcs, 0);
205 DEBUG(1, ("krb5_locate_kdc failed (%s)\n", error_message(rc)));
208 for (i=0;i<num_kdcs;i++)
209 if (addrs[i].sin_family == AF_INET)
210 d_printf("%s:%hd\n", inet_ntoa(addrs[i].sin_addr),
211 ntohs(addrs[i].sin_port));
215 DEBUG(1, ("No kerberos support\n"));
220 /* lookup hosts or IP addresses using internal samba lookup fns */
221 int net_lookup(int argc, const char **argv)
223 struct functable func[] = {
224 {"HOST", net_lookup_host},
225 {"LDAP", net_lookup_ldap},
226 {"DC", net_lookup_dc},
227 {"MASTER", net_lookup_master},
228 {"KDC", net_lookup_kdc},
232 return net_run_function(argc, argv, func, net_lookup_usage);