Section (3) ldap_get_values

Linux manual pages Section 3  


ldap_get_values, ldap_get_values_len, ldap_count_values — LDAP attribute value handling routines


#include <ldap.h>
char **ldap_get_values( LDAP *ld,
  LDAPMessage *entry,
  char *attr);
struct berval **ldap_get_values_len( LDAP *ld,
  LDAPMessage *entry,
  char *attr);
int ldap_count_values( char **vals);
int ldap_count_values_len( struct berval **vals);
void ldap_value_free( char **vals);
void ldap_value_free_len( struct berval **vals);


OpenLDAP LDAP (libldap, −lldap)


These routines are used to retrieve and manipulate attribute values from an LDAP entry as returned by ldap_first_entry(3) or ldap_next_entry(3). ldap_get_values() takes the entry and the attribute attr whose values are desired and returns a NULL-terminated array of the attribute_zsingle_quotesz_s values. attr may be an attribute type as returned from ldap_first_attribute(3) or ldap_next_attribute(3), or if the attribute type is known it can simply be given.

The number of values in the array can be counted by calling ldap_count_values(). The array of values returned can be freed by calling ldap_value_free().

If the attribute values are binary in nature, and thus not suitable to be returned as an array of char *_zsingle_quotesz_s, the ldap_get_values_len() routine can be used instead. It takes the same parameters as ldap_get_values(), but returns a NULL-terminated array of pointers to berval structures, each containing the length of and a pointer to a value.

The number of values in the array can be counted by calling ldap_count_values_len(). The array of values returned can be freed by calling ldap_value_free_len().


If an error occurs in ldap_get_values() or ldap_get_values_len(), 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.


These routines dynamically allocate memory which the caller must free using the supplied routines.


ldap(3), ldap_first_entry(3), ldap_first_attribute(3), ldap_error(3)


OpenLDAP Software is developed and maintained by The OpenLDAP Project <>. OpenLDAP Software is derived from the University of Michigan LDAP 3.3 Release.

See the following documents: COPYRIGHTLICENSE