LDAP_OPT_PROTOCOL_VERSION

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Use the LDAP_OPT_PROTOCOL_VERSION setting to specify the LDAP protocol to be used by the LDAP client library when it connects to an LDAP server.

The API is also used to determine which LDAP protocol is being used for the connection. For an application that uses ldap_init() to create the LDAP connection, the default value of this option is LDAP_VERSION3 for communicating with the LDAP server. The default value of this option is LDAP_VERSION2 if the application uses the deprecated ldap_open() API. In either case, the LDAP_OPT_PROTOCOL_VERSION option can be used with ldap_set_option() to change the default. The LDAP protocol version must be reset before you issue the bind, or any operation that causes an implicit bind. For example:

   version2 = LDAP_VERSION2;
   version3 = LDAP_VERSION3;
/* Example for Version 3 application setting version to version 2 */
   ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version2);
/* Example of Version 2 application setting version to version 3 */ 
   ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version3);
   ldap_get_option( ld, LDAP_OPT_PROTOCOL_VERSION, &value);