LDAP_GET_VALUES(3LDAP) LDAP Library Functions LDAP_GET_VALUES(3LDAP)
NAME
ldap_get_values, ldap_get_values_len, ldap_count_values,
ldap_count_values_len, ldap_value_free, ldap_value_free_len - LDAP
attribute value handling functions
SYNOPSIS
cc[
flag... ]
file... -lldap[
library... ]
#include <lber.h>
#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);
ldap_count_values(
char **vals);
ldap_count_values_len(
struct berval **vals);
ldap_value_free(
char **vals);
ldap_value_free_len(
struct berval **vals);
DESCRIPTION
These functions are used to retrieve and manipulate attribute values
from an LDAP entry as returned by
ldap_first_entry(3LDAP) or
ldap_next_entry(3LDAP).
ldap_get_values() takes the
entry and the
attribute
attr whose values are desired and returns a null-terminated
array of the attribute's values.
attr may be an attribute type as
returned from
ldap_first_attribute(3LDAP) or
ldap_next_attribute(3LDAP), 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 *'s, the
ldap_get_values_len() function 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().
ERRORS
If an error occurs in
ldap_get_values() or
ldap_get_values_len(),
NULL returned and the
ld_errno field in the
ld parameter is set to
indicate the error. See
ldap_error(3LDAP) for a description of
possible error codes.
ATTRIBUTES
See
attributes(7) for a description of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Interface Stability | Evolving |
+--------------------+-----------------+
SEE ALSO
ldap(3LDAP),
ldap_error(3LDAP),
ldap_first_attribute(3LDAP),
ldap_first_entry(3LDAP),
attributes(7)NOTES
These functions allocates memory that the caller must free.
January 28, 2002 LDAP_GET_VALUES(3LDAP)