Provided by: libldap2-dev_2.4.28-1.1ubuntu4_i386 bug

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 previously 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
       invocation 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   indefinitely.    To  effect   a   poll,  the  timeout argument
       should be  a  non-NULL  pointer,  pointing  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 references, 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.openldap.org/>.    OpenLDAP   Software   is   derived  from
       University of Michigan LDAP 3.3 Release.