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       ldap_search,	ldap_search_s,	   ldap_search_st,    ldap_search_ext,
       ldap_search_ext_s - Perform an LDAP search operation

       OpenLDAP LDAP (libldap, -lldap)

       #include <sys/types.h>
       #include <ldap.h>

       int ldap_search_ext(
	      LDAP *ld,
	      char *base,
	      int scope,
	      char *filter,
	      char *attrs[],
	      int attrsonly,
	      LDAPControl **serverctrls,
	      LDAPControl **clientctrls,
	      struct timeval *timeout,
	      int sizelimit,
	      int *msgidp );

       int ldap_search_ext_s(
	      LDAP *ld,
	      char *base,
	      int scope,
	      char *filter,
	      char *attrs[],
	      int attrsonly,
	      LDAPControl **serverctrls,
	      LDAPControl **clientctrls,
	      struct timeval *timeout,
	      int sizelimit,
	      LDAPMessage **res );

       These routines  are  used  to  perform  LDAP  search  operations.   The
       ldap_search_ext_s()  routine  does  the search synchronously (i.e., not
       returning until the operation completes), providing a  pointer  to  the
       resulting  LDAP	messages at the location pointed to by the res parame‐

       The ldap_search_ext() routine is the asynchronous  version,  initiating
       the  search  and returning the message id of the operation it initiated
       in the integer pointed to by the msgidp parameter.

       The base parameter is the DN of the entry at which to start the search.

       The scope parameter is the scope of the search and  should  be  one  of
       LDAP_SCOPE_BASE,	 to  search the object itself, LDAP_SCOPE_ONELEVEL, to
       search the object's immediate children, LDAP_SCOPE_SUBTREE,  to	search
       the  object  and all its descendants, or LDAP_SCOPE_CHILDREN, to search
       all of the descendants.	 Note that the latter requires the server sup‐
       port the LDAP Subordinates Search Scope extension.

       The  filter  is	a  string representation of the filter to apply in the
       search.	The string should conform to the format specified in RFC  4515
       as extended by RFC 4526.	 For instance, "(cn=Jane Doe)".	 Note that use
       of the extension requires the  server  to  support  the	LDAP  Absolute
       True/False  Filter  extension.	NULL  may be specified to indicate the
       library should send the filter (objectClass=*).

       The attrs parameter is a null-terminated array  of  attribute  descrip‐
       tions  to  return  from	matching  entries.   If NULL is specified, the
       return of all  user  attributes	is  requested.	 The  description  "*"
       (LDAP_ALL_USER_ATTRIBUTES)  may	be used to request all user attributes
       to be returned.	The  description  "+"(LDAP_ALL_OPERATIONAL_ATTRIBUTES)
       may be used to request all operational attributes to be returned.  Note
       that this requires the server  to  support  the	LDAP  All  Operational
       Attribute  extension.   To request no attributes, the description "1.1"
       (LDAP_NO_ATTRS) should be listed by itself.

       The attrsonly parameter should be set  to  a  non-zero  value  if  only
       attribute  descriptions	are  wanted.   It should be set to zero (0) if
       both attributes descriptions and attribute values are wanted.

       The serverctrls and clientctrls	parameters  may	 be  used  to  specify
       server and client controls, respectively.

       The   ldap_search_ext_s()   routine   is	 the  synchronous  version  of

       It also returns a code indicating success or, in the case  of  failure,
       indicating   the	  nature   of  the  failure  of	 the  operation.   See
       ldap_error(3) for details.

       Note that both read and list functionality are subsumed by  these  rou‐
       tines,  by  using  a  filter  like  "(objectclass=*)"  and  a  scope of
       LDAP_SCOPE_BASE (to emulate read) or  LDAP_SCOPE_ONELEVEL  (to  emulate

       These routines may dynamically allocate memory. The caller is responsi‐
       ble for freeing	such  memory  using  supplied  deallocation  routines.
       Return values are contained in <ldap.h>.

       Note  that  res	parameter  of  ldap_search_ext_s() and ldap_search_s()
       should be freed with ldap_msgfree() regardless of return value of these

       The   ldap_search()   routine   is   deprecated	 in   favor   of   the
       ldap_search_ext() routine.  The	ldap_search_s()	 and  ldap_search_st()
       routines are deprecated in favor of the ldap_search_ext_s() routine.

       Deprecated  interfaces  generally  remain  in  the  library.  The macro
       LDAP_DEPRECATED can be defined to a non-zero value (e.g., -DLDAP_DEPRE‐
       CATED=1)	 when compiling program designed to use deprecated interfaces.
       It is recommended that developers writing new programs, or updating old
       programs,  avoid	 use  of  deprecated  interfaces.   Over  time,	 it is
       expected that documentation (and, eventually, support)  for  deprecated
       interfaces to be eliminated.

       ldap(3), ldap_result(3), ldap_error(3)

       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 2.4.39			  2014/01/26			LDAP_SEARCH(3)

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