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LDAP_FIRST_ATTRIBUTE(3) Library Functions Manual LDAP_FIRST_ATTRIBUTE(3) NAME ldap_first_attribute, ldap_next_attribute - step through LDAP entry attributes LIBRARY OpenLDAP LDAP (libldap, -lldap) SYNOPSIS #include <ldap.h> char *ldap_first_attribute( LDAP *ld, LDAPMessage *entry, BerElement **berptr ) char *ldap_next_attribute( LDAP *ld, LDAPMessage *entry, BerElement *ber ) DESCRIPTION The ldap_first_attribute() and ldap_next_attribute() routines are used to step through the attributes in an LDAP entry. ldap_first_attribute() takes an entry as returned by ldap_first_entry(3) or ldap_next_entry(3) and returns a pointer to character string containing the first attribute description in the entry. ldap_next_attribute() returns the next attribute description in the entry. It also returns, in berptr, a pointer to a BerElement it has allocated to keep track of its current position. This pointer should be passed to subsequent calls to ldap_next_attribute() and is used to effectively step through the entry's attributes. The caller is solely responsible for freeing the BerElement pointed to by berptr when it is no longer needed by calling ber_free(3). When calling ber_free(3) in this instance, be sure the second argument is 0. The attribute names returned are suitable for inclusion in a call to ldap_get_values(3) to retrieve the attribute's values. ERRORS If an error occurs, NULL is returned and the ld_errno field in the ld parameter is set to indicate the error. See ldap_error(3) for a description of possible error codes. NOTES The ldap_first_attribute() and ldap_next_attribute() return dynamically allocated memory that must be freed by the caller via ldap_memfree(3). SEE ALSO ldap(3), ldap_first_entry(3), ldap_get_values(3), ldap_error(3) ACKNOWLEDGEMENTS OpenLDAP Software is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>. OpenLDAP Software is derived from University of Michigan LDAP 3.3 Release. OpenLDAP 2.4.39 2014/01/26 LDAP_FIRST_ATTRIBUTE(3)