B.4 Compare An Attribute
Appendix B:
B.4.1 Compare Using LDAP C API
/*
* Copyright (c) 1996. Netscape Communications Corporation. All
* rights reserved.
*
* Use ldap_compare() to compare values agains values contained in entry
* "cn=Barbara Jensen, ou=Product Development, o=Ace Industry, c=US".
* We test to see if (1) the value "person" is one of the values in the
* objectclass attribute (it is), and if (2) the value "xyzzy" is in the
* objectlass attribute (it isn't, or at least, it shouldn't be).
*
*/
#include "examples.h"
int
main( int main, char **argv )
{
LDAP *ld;
int rc;
/* get a handle to an LDAP connection */
if ( (ld = ldap_init( MY_HOST, MY_PORT )) == NULL ) {
perror( "ldap_init" );
return( 1 );
}
/* authenticate to the directory as nobody */
if ( ldap_simple_bind_s( ld, NULL, NULL ) != LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_simple_bind_s" );
return( 1 );
}
/* compare the value "person" against the objectclass attribute */
rc = ldap_compare_s( ld, ENTRYDN, "objectclass", "person" );
switch ( rc ) {
case LDAP_COMPARE_TRUE:
printf( "The value \"person\" is contained in the objectclass "
"attribute.\n" );
break;
case LDAP_COMPARE_FALSE:
printf( "The value \"person\" is not contained in the objectclass "
"attribute.\n" );
break;
default:
ldap_perror( ld, "ldap_compare_s" );
}
/* compare the value "xyzzy" against the objectclass attribute */
rc = ldap_compare_s( ld, ENTRYDN, "objectclass", "xyzzy" );
switch ( rc ) {
case LDAP_COMPARE_TRUE:
printf( "The value \"xyzzy\" is contained in the objectclass "
"attribute.\n" );
break;
case LDAP_COMPARE_FALSE:
printf( "The value \"xyzzy\" is not contained in the objectclass "
"attribute.\n" );
break;
default:
ldap_perror( ld, "ldap_compare_s" );
}
ldap_unbind( ld );
return( 0 );
}
B.4.2 Compare Using JNDI
/*
* @(#)Compare.java 1.2 99/07/26
*
* Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
import java.util.Hashtable;
import javax.naming.*;
import javax.naming.directory.*;
/*
* Use search() to compare values against values contained in entry
* "cn=Barbara Jensen, ou=Product Development, o=Ace Industry, c=US".
* We test to see if (1) the value "person" is one of the values in the
* objectclass attribute (it is), and if (2) the value "xyzzy" is in the
* objectlass attribute (it isn't, or at least, it shouldn't be).
*
* [equivalent to compare.c in Netscape SDK]
*
*/
class Compare {
public static void main(String[] args) {
Hashtable env = new Hashtable(5, 0.75f);
/*
* Specify the initial context implementation to use.
* This could also be set by using the -D option to the java program.
* For example,
* java -Djava.naming.factory.initial=com.sun.jndi.ldap.LdapCtxFactory \
* Compare
*/
env.put(Context.INITIAL_CONTEXT_FACTORY, Env.INITCTX);
/* Specify host and port to use for directory service */
env.put(Context.PROVIDER_URL, Env.MY_SERVICE);
DirContext ctx = null;
SearchControls ctls = new SearchControls();
ctls.setSearchScope(SearchControls.OBJECT_SCOPE);
ctls.setReturningAttributes(new String[0]); // do not return any attrs
try {
/* get a handle to an Initial DirContext */
ctx = new InitialDirContext(env);
} catch (NamingException e) {
System.err.println("Cannot get initial context.");
return;
}
try {
NamingEnumeration results =
ctx.search(Env.ENTRYDN, "objectclass=person", ctls);
if (results != null && results.hasMoreElements()) {
System.out.println(
"The value \"person\" is contained in the objectclass attribute.");
} else {
System.out.println(
"The value \"person\" is not contained in the objectclass attribute." );
}
} catch (NamingException e) {
System.err.println("Comparison of value person failed.");
}
try {
NamingEnumeration results =
ctx.search(Env.ENTRYDN, "objectclass=xyzzy", ctls);
if (results != null && results.hasMoreElements()) {
System.out.println(
"The value \"xyzzy\" is contained in the objectclass attribute.");
} else {
System.out.println(
"The value \"xyzzy\" is not contained in the objectclass attribute." );
}
} catch (NamingException e) {
System.err.println("Comparison of value xyzzy failed.");
}
}
}
CONTENTS | PREV | NEXT
