first public release of samba4 code

source/libads/ads_struct.c

@@ -0,0 +1,141 @@
+/* 
+   Unix SMB/CIFS implementation.
+   ads (active directory) utility library
+   Copyright (C) Andrew Tridgell 2001
+   Copyright (C) Andrew Bartlett 2001
+   
+   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"
+
+/* return a ldap dn path from a string, given separators and field name
+   caller must free
+*/
+char *ads_build_path(const char *realm, const char *sep, const char *field, int reverse)
+{
+	char *p, *r;
+	int numbits = 0;
+	char *ret;
+	int len;
+	
+	r = strdup(realm);
+
+	if (!r || !*r)
+		return r;
+
+	for (p=r; *p; p++)
+		if (strchr(sep, *p))
+			numbits++;
+
+	len = (numbits+1)*(strlen(field)+1) + strlen(r) + 1;
+
+	ret = malloc(len);
+	if (!ret)
+		return NULL;
+
+	strlcpy(ret,field, len);
+	p=strtok(r,sep); 
+	strlcat(ret, p, len);
+
+	while ((p=strtok(NULL,sep))) {
+		char *s;
+		if (reverse)
+			asprintf(&s, "%s%s,%s", field, p, ret);
+		else
+			asprintf(&s, "%s,%s%s", ret, field, p);
+		free(ret);
+		ret = s;
+	}
+
+	free(r);
+	return ret;
+}
+
+/* return a dn of the form "dc=AA,dc=BB,dc=CC" from a 
+   realm of the form AA.BB.CC 
+   caller must free
+*/
+char *ads_build_dn(const char *realm)
+{
+	return ads_build_path(realm, ".", "dc=", 0);
+}
+
+
+#ifndef LDAP_PORT
+#define LDAP_PORT 389
+#endif
+
+/*
+  initialise a ADS_STRUCT, ready for some ads_ ops
+*/
+ADS_STRUCT *ads_init(const char *realm, 
+		     const char *workgroup,
+		     const char *ldap_server)
+{
+	ADS_STRUCT *ads;
+	
+	ads = (ADS_STRUCT *)smb_xmalloc(sizeof(*ads));
+	ZERO_STRUCTP(ads);
+	
+	ads->server.realm = realm? strdup(realm) : NULL;
+	ads->server.workgroup = workgroup ? strdup(workgroup) : NULL;
+	ads->server.ldap_server = ldap_server? strdup(ldap_server) : NULL;
+
+	/* we need to know if this is a foreign realm to know if we can
+	   use lp_ads_server() */
+	if (realm && *realm && strcasecmp(lp_realm(), realm) != 0) {
+		ads->server.foreign = 1;
+	}
+	if (workgroup && *workgroup && strcasecmp(lp_workgroup(), workgroup) != 0) {
+		ads->server.foreign = 1;
+	}
+
+	return ads;
+}
+
+/* a simpler ads_init() interface using all defaults */
+ADS_STRUCT *ads_init_simple(void)
+{
+	return ads_init(NULL, NULL, NULL);
+}
+
+/*
+  free the memory used by the ADS structure initialized with 'ads_init(...)'
+*/
+void ads_destroy(ADS_STRUCT **ads)
+{
+	if (ads && *ads) {
+#if HAVE_LDAP
+		if ((*ads)->ld) ldap_unbind((*ads)->ld);
+#endif
+		SAFE_FREE((*ads)->server.realm);
+		SAFE_FREE((*ads)->server.workgroup);
+		SAFE_FREE((*ads)->server.ldap_server);
+		SAFE_FREE((*ads)->server.ldap_uri);
+
+		SAFE_FREE((*ads)->auth.realm);
+		SAFE_FREE((*ads)->auth.password);
+		SAFE_FREE((*ads)->auth.user_name);
+		SAFE_FREE((*ads)->auth.kdc_server);
+
+		SAFE_FREE((*ads)->config.realm);
+		SAFE_FREE((*ads)->config.bind_path);
+		SAFE_FREE((*ads)->config.ldap_server_name);
+
+		ZERO_STRUCTP(*ads);
+		SAFE_FREE(*ads);
+	}
+}