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LDAP_CONTROLS(3)	   Library Functions Manual	      LDAP_CONTROLS(3)

       ldap_control_create,   ldap_control_find,  ldap_control_dup,  ldap_con-
       trols_dup, ldap_control_free, ldap_controls_free	- LDAP control manipu-
       lation routines

       OpenLDAP	LDAP (libldap, -lldap)

       #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);

       These  routines	are  used  to manipulate structures used for LDAP con-

       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

       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.

       ldap(3),	ldap_error(3)

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

OpenLDAP 2.4.45			  2017/06/01		      LDAP_CONTROLS(3)


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