LDAP_FIRST_ATTRIBUTE(3)    Library Functions Manual    LDAP_FIRST_ATTRIBUTE(3)

       ldap_first_attribute, ldap_next_attribute - step through LDAP entry at-

       OpenLDAP LDAP (libldap, -lldap)

       #include <ldap.h>

       char *ldap_first_attribute(
            LDAP *ld, LDAPMessage *entry, BerElement **berptr )

       char *ldap_next_attribute(
            LDAP *ld, LDAPMessage *entry, BerElement *ber )

       The ldap_first_attribute() and ldap_next_attribute() routines are  used
       to  step  through  the  attributes in an LDAP entry.  ldap_first_attri-
       bute()  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  in-
       stance, 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.

       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 de-
       scription of possible error codes.

       The ldap_first_attribute() and ldap_next_attribute() return dynamically
       allocated memory that must be freed by the caller via ldap_memfree(3).

       ldap(3), ldap_first_entry(3), ldap_get_values(3), ldap_error(3)

       OpenLDAP  Software  is developed and maintained by The OpenLDAP Project
       <http://www.openldap.org/>.  OpenLDAP Software is derived from the Uni-
       versity of Michigan LDAP 3.3 Release.

OpenLDAP                          2020/01/30           LDAP_FIRST_ATTRIBUTE(3)
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