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NetBSD 6.1.5 - man page for ldap_msgtype (netbsd section 3)

LDAP_RESULT(3)									   LDAP_RESULT(3)

NAME
       ldap_result - Wait for the result of an LDAP operation

LIBRARY
       OpenLDAP LDAP (libldap, -lldap)

SYNOPSIS
       #include <ldap.h>

       int ldap_result( LDAP *ld, int msgid, int all,
	    struct timeval *timeout, LDAPMessage **result );

       int ldap_msgfree( LDAPMessage *msg );

       int ldap_msgtype( LDAPMessage *msg );

       int ldap_msgid( LDAPMessage *msg );

DESCRIPTION
       The ldap_result() routine is used to wait for and return the result of an operation previ-
       ously  initiated  by  one   of	the   LDAP   asynchronous   operation	routines   (e.g.,
       ldap_search_ext(3),  ldap_modify_ext(3),  etc.).   Those routines all return -1 in case of
       error, and an invocation identifier upon successful initiation of the operation. The invo-
       cation  identifier is picked by the library and is guaranteed to be unique across the LDAP
       session.  It can be used to request the result of a specific operation from  ldap_result()
       through the msgid parameter.

       The  ldap_result()  routine  will  block or not, depending upon the setting of the timeout
       parameter.  If timeout is not a NULL pointer,  it  specifies  a	maximum interval  to wait
       for  the selection to complete.	If timeout is a NULL  pointer, the LDAP_OPT_TIMEOUT value
       set by ldap_set_option(3) is used. With the default setting, the  select  blocks   indefi-
       nitely.	  To effect  a	poll,  the  timeout argument should be a non-NULL pointer, point-
       ing to a zero-valued timeval structure.	To obtain the behavior of  the	default  setting,
       bypassing  any  value set by ldap_set_option(3), set to -1 the tv_sec field of the timeout
       parameter.  See select(2) for further details.

       If the result of a specific operation is required, msgid should be set to  the  invocation
       identifier   returned   when  the  operation  was  initiated,  otherwise  LDAP_RES_ANY  or
       LDAP_RES_UNSOLICITED should be supplied to wait for any or unsolicited response.

       The all parameter, if non-zero, causes ldap_result() to return all responses  with  msgid,
       otherwise  only	the  next  response is returned.  This is commonly used to obtain all the
       responses of a search operation.

       A search response is made up of zero or more search entries, zero or  more  search  refer-
       ences, and zero or more extended partial responses followed by a search result.	If all is
       set to 0, search entries will be returned one at a time as  they  come  in,  via  separate
       calls  to  ldap_result().   If it's set to 1, the search response will only be returned in
       its entirety, i.e., after all entries, all references, all extended partial responses, and
       the final search result have been received.

RETURN VALUE
       Upon  success,  the  type of the result received is returned and the result parameter will
       contain the result of the operation; otherwise, the result parameter is	undefined.   This
       result  should  be passed to the LDAP parsing routines, ldap_first_message(3) and friends,
       for interpretation.

       The possible result types returned are:

	    LDAP_RES_BIND (0x61)
	    LDAP_RES_SEARCH_ENTRY (0x64)
	    LDAP_RES_SEARCH_REFERENCE (0x73)
	    LDAP_RES_SEARCH_RESULT (0x65)
	    LDAP_RES_MODIFY (0x67)
	    LDAP_RES_ADD (0x69)
	    LDAP_RES_DELETE (0x6b)
	    LDAP_RES_MODDN (0x6d)
	    LDAP_RES_COMPARE (0x6f)
	    LDAP_RES_EXTENDED (0x78)
	    LDAP_RES_INTERMEDIATE (0x79)

       The ldap_msgfree() routine  is  used  to  free  the  memory  allocated  for  result(s)  by
       ldap_result()  or  ldap_search_ext_s(3)	and friends.  It takes a pointer to the result or
       result chain to be freed and returns the type of the last message in the  chain.   If  the
       parameter is NULL, the function does nothing and returns zero.

       The ldap_msgtype() routine returns the type of a message.

       The ldap_msgid() routine returns the message id of a message.

ERRORS
       ldap_result()  returns  -1 if something bad happens, and zero if the timeout specified was
       exceeded.  ldap_msgtype() and ldap_msgid() return -1 on error.

SEE ALSO
       ldap(3), ldap_first_message(3), select(2)

ACKNOWLEDGEMENTS
       OpenLDAP Software is developed and maintained by The OpenLDAP  Project  <http://www.openl-
       dap.org/>.  OpenLDAP Software is derived from University of Michigan LDAP 3.3 Release.

OpenLDAP 2.4.23 			    2010/06/30				   LDAP_RESULT(3)


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