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LDAP_FIRST_ATTRIBUTE(3)                                                              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 descrip-tion description
       tion 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 2.4.28                                  2011/11/24                          LDAP_FIRST_ATTRIBUTE(3)