ldap_get_values_len()

The ldap_get_values_len() function returns a NULL-terminated array of pointers to berval structures, each containing the length and pointer to a binary value of an attribute for a given entry. Use the ldap_get_values() routine instead of this routine if the attribute values are string values.

#include <ldap.h>
struct berval ** ldap_get_values_len( LDAP *ld, 
   LDAPMessage *entry, const char *target );

#include <stdio.h>

#include <ldap.h>

...

LDAP *ld;

LDAPMessage *result, *e;

BerElement *ber;

struct berval photo_data;

struct berval **list_of_photos;

FILE *out;

char *my_searchbase = "o=Airius.com";

char *my_filter = "(sn=Jensen)";

...

/* Search the directory */

if ( ldap_search_s( ld, my_searchbase, LDAP_SCOPE_SUBTREE, my_filter, NULL, 0, &result ) != LDAP_SUCCESS ) {

   ldap_perror( ld, "ldap_search_s" );

   return( 1 );

/* Get the first matching entry.*/

e = ldap_first_entry( ld, result );

/* Get the value of the jpegPhoto attribute */

if ( ( list_of_photos = ldap_get_values_len( ld, e, "jpegPhoto" ) ) != NULL ) {

   /* Prepare to write the JPEG data to a file */

   if ( ( out = fopen( "photo.jpg", "wb" ) ) == NULL ) {

      perror( "fopen" );

      return( 1 );

   /* Get the first JPEG */

   photo_data = *list_of_photos[0];

   /* Write the JPEG data to a file */

   fwrite( photo_data.bv_val, photo_data.bv_len, 1, out );

   fclose( out );

   /* Free the attribute values from memory when done. */

   ldap_value_free_len( list_of_photos );

...

ld	Connection handle, which is a pointer to an `LDAP` structure containing information about the connection to the LDAP server.
entry	Result returned by the `ldap_result()` or `ldap_search_s()` function.
target	Attribute returned by `ldap_first_attribute()` or `ldap_next_attribute()`, or the attribute as a literal string, such as "jpegPhoto" or "audio".