first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 234 insertions, 0 deletions

diff --git a/source4/utils/net_lookup.c b/source4/utils/net_lookup.c
new file mode 100644
index 0000000000..271094480c
--- /dev/null
+++ b/source4/utils/net_lookup.c
@@ -0,0 +1,234 @@
+/* 
+   Samba Unix/Linux SMB client library 
+   net lookup command
+   Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
+
+   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"
+#include "../utils/net.h"
+
+int net_lookup_usage(int argc, const char **argv)
+{
+	d_printf(
+"  net lookup host HOSTNAME <type>\n\tgives IP for a hostname\n\n"
+"  net lookup ldap [domain]\n\tgives IP of domain's ldap server\n\n"
+"  net lookup kdc [realm]\n\tgives IP of realm's kerberos KDC\n\n"
+"  net lookup dc [domain]\n\tgives IP of domains Domain Controllers\n\n"
+"  net lookup master [domain|wg]\n\tgive IP of master browser\n\n"
+);
+	return -1;
+}
+
+/* lookup a hostname giving an IP */
+static int net_lookup_host(int argc, const char **argv)
+{
+	struct in_addr ip;
+	int name_type = 0x20;
+
+	if (argc == 0) return net_lookup_usage(argc, argv);
+	if (argc > 1) name_type = strtol(argv[1], NULL, 0);
+
+	if (!resolve_name(argv[0], &ip, name_type)) {
+		/* we deliberately use DEBUG() here to send it to stderr 
+		   so scripts aren't mucked up */
+		DEBUG(0,("Didn't find %s#%02x\n", argv[0], name_type));
+		return -1;
+	}
+
+	d_printf("%s\n", inet_ntoa(ip));
+	return 0;
+}
+
+static void print_ldap_srvlist(char *srvlist)
+{
+	char *cur, *next;
+	struct in_addr ip;
+	BOOL printit;
+
+	cur = srvlist;
+	do {
+		next = strchr(cur,':');
+		if (next) *next++='\0';
+		printit = resolve_name(cur, &ip, 0x20);
+		cur=next;
+		next=cur ? strchr(cur,' ') :NULL;
+		if (next)
+			*next++='\0';
+		if (printit)
+			d_printf("%s:%s\n", inet_ntoa(ip), cur?cur:"");
+		cur = next;
+	} while (next);
+}
+		
+
+static int net_lookup_ldap(int argc, const char **argv)
+{
+#ifdef HAVE_LDAP
+	char *srvlist;
+	const char *domain;
+	int rc;
+	struct in_addr addr;
+	struct hostent *hostent;
+
+	if (argc > 0)
+		domain = argv[0];
+	else
+		domain = opt_target_workgroup;
+
+	DEBUG(9, ("Lookup up ldap for domain %s\n", domain));
+	rc = ldap_domain2hostlist(domain, &srvlist);
+	if ((rc == LDAP_SUCCESS) && srvlist) {
+		print_ldap_srvlist(srvlist);
+		return 0;
+	}
+
+     	DEBUG(9, ("Looking up DC for domain %s\n", domain));
+	if (!get_pdc_ip(domain, &addr))
+		return -1;
+
+	hostent = gethostbyaddr((char *) &addr.s_addr, sizeof(addr.s_addr),
+				AF_INET);
+	if (!hostent)
+		return -1;
+
+	DEBUG(9, ("Found DC with DNS name %s\n", hostent->h_name));
+	domain = strchr(hostent->h_name, '.');
+	if (!domain)
+		return -1;
+	domain++;
+
+	DEBUG(9, ("Looking up ldap for domain %s\n", domain));
+	rc = ldap_domain2hostlist(domain, &srvlist);
+	if ((rc == LDAP_SUCCESS) && srvlist) {
+		print_ldap_srvlist(srvlist);
+		return 0;
+	}
+	return -1;
+#endif
+	DEBUG(1,("No LDAP support\n"));
+	return -1;
+}
+
+static int net_lookup_dc(int argc, const char **argv)
+{
+	struct in_addr *ip_list, addr;
+	char *pdc_str = NULL;
+	const char *domain=opt_target_workgroup;
+	int count, i;
+	BOOL list_ordered;
+
+	if (argc > 0)
+		domain=argv[0];
+
+	/* first get PDC */
+	if (!get_pdc_ip(domain, &addr))
+		return -1;
+
+	asprintf(&pdc_str, "%s", inet_ntoa(addr));
+	d_printf("%s\n", pdc_str);
+
+	if (!get_dc_list(domain, &ip_list, &count, &list_ordered)) {
+		SAFE_FREE(pdc_str);
+		return 0;
+	}
+	for (i=0;i<count;i++) {
+		char *dc_str = inet_ntoa(ip_list[i]);
+		if (!strequal(pdc_str, dc_str))
+			d_printf("%s\n", dc_str);
+	}
+	SAFE_FREE(pdc_str);
+	return 0;
+}
+
+static int net_lookup_master(int argc, const char **argv)
+{
+	struct in_addr master_ip;
+	const char *domain=opt_target_workgroup;
+
+	if (argc > 0)
+		domain=argv[0];
+
+	if (!find_master_ip(domain, &master_ip))
+		return -1;
+	d_printf("%s\n", inet_ntoa(master_ip));
+	return 0;
+}
+
+static int net_lookup_kdc(int argc, const char **argv)
+{
+#ifdef HAVE_KRB5
+	krb5_error_code rc;
+	krb5_context ctx;
+	struct sockaddr_in *addrs;
+	int num_kdcs,i;
+	krb5_data realm;
+	char **realms;
+
+	rc = krb5_init_context(&ctx);
+	if (rc) {
+		DEBUG(1,("krb5_init_context failed (%s)\n", 
+			 error_message(rc)));
+		return -1;
+	}
+
+	if (argc>0) {
+		realm.data = (krb5_pointer) argv[0];
+		realm.length = strlen(argv[0]);
+	} else if (lp_realm() && *lp_realm()) {
+		realm.data = (krb5_pointer) lp_realm();
+		realm.length = strlen(realm.data);
+	} else {
+		rc = krb5_get_host_realm(ctx, NULL, &realms);
+		if (rc) {
+			DEBUG(1,("krb5_gethost_realm failed (%s)\n",
+				 error_message(rc)));
+			return -1;
+		}
+		realm.data = (krb5_pointer) *realms;
+		realm.length = strlen(realm.data);
+	}
+
+	rc = krb5_locate_kdc(ctx, &realm, &addrs, &num_kdcs, 0);
+	if (rc) {
+		DEBUG(1, ("krb5_locate_kdc failed (%s)\n", error_message(rc)));
+		return -1;
+	}
+	for (i=0;i<num_kdcs;i++)
+		if (addrs[i].sin_family == AF_INET) 
+			d_printf("%s:%hd\n", inet_ntoa(addrs[i].sin_addr),
+				 ntohs(addrs[i].sin_port));
+	return 0;
+
+#endif	
+	DEBUG(1, ("No kerberos support\n"));
+	return -1;
+}
+
+
+/* lookup hosts or IP addresses using internal samba lookup fns */
+int net_lookup(int argc, const char **argv)
+{
+	struct functable func[] = {
+		{"HOST", net_lookup_host},
+		{"LDAP", net_lookup_ldap},
+		{"DC", net_lookup_dc},
+		{"MASTER", net_lookup_master},
+		{"KDC", net_lookup_kdc},
+		{NULL, NULL}
+	};
+
+	return net_run_function(argc, argv, func, net_lookup_usage);
+}