LDAP_CONTROLS(3)LDAP_CONTROLS(3)NAME
ldap_control_create, ldap_control_find, ldap_control_dup, ldap_con‐
trols_dup, ldap_control_free, ldap_controls_free - LDAP control manipu‐
lation routines
LIBRARY
OpenLDAP LDAP (libldap, -lldap)
SYNOPSIS
#include <ldap.h>
int ldap_control_create(const char *oid, int iscritical, struct berval
*value, int dupval, LDAPControl **ctrlp);
LDAPControl *ldap_control_find( const char *oid, LDAPControl **ctrls,
LDAPControl ***nextctrlp);
LDAPControl *ldap_control_dup(LDAPControl *ctrl);
LDAPControl **ldap_controls_dup(LDAPControl **ctrls);
void ldap_control_free(LDAPControl *ctrl);
void ldap_controls_free(LDAPControl **ctrls);
DESCRIPTION
These routines are used to manipulate structures used for LDAP con‐
trols.
ldap_control_create() creates a control with the specified OID using
the contents of the value parameter for the control value, if any. The
content of value is duplicated if dupval is non-zero. The iscritical
parameter must be non-zero for a critical control. The created control
is returned in the ctrlp parameter. The routine returns LDAP_SUCCESS
on success or some other error code on failure. The content of value,
for supported control types, can be prepared using helpers provided by
this implementation of libldap, usually in the form ldap_create_<con‐
trol name>_control_value(). Otherwise, it can be BER-encoded using the
functionalities of liblber.
ldap_control_find() searches the NULL-terminated ctrls array for a con‐
trol whose OID matches the oid parameter. The routine returns a
pointer to the control if found, NULL otherwise. If the parameter
nextctrlp is not NULL, on return it will point to the next control in
the array, and can be passed to the ldap_control_find() routine for
subsequent calls, to find further occurrences of the same control type.
The use of this function is discouraged; the recommended way of han‐
dling controls in responses consists in going through the array of con‐
trols, dealing with each of them in the returned order, since it could
matter.
ldap_control_dup() duplicates an individual control structure, and
ldap_controls_dup() duplicates a NULL-terminated array of controls.
ldap_control_free() frees an individual control structure, and
ldap_controls_free() frees a NULL-terminated array of controls.
SEE ALSOldap(3), ldap_error(3)ACKNOWLEDGEMENTS
OpenLDAP Software is developed and maintained by The OpenLDAP Project
<http://www.openldap.org/>. OpenLDAP Software is derived from Univer‐
sity of Michigan LDAP 3.3 Release.
OpenLDAP 2.4.35 2013/03/31 LDAP_CONTROLS(3)
