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4e51bba217
================ Written by Hallvard B. Furuseth and placed into the public domain. This software is not subject to any license of the University of Oslo. ================ A surrogate parent is supposed to keep back-shell children from deadlocking due to resources locked by a threading parent. Implementation note: The surrogate parent closes all unused file descriptors, so it logs errors to stderr instead of via Debug() and uses relloc() instead of ch_realloc(). Also close a file descriptor leak if fork() fails in fork.c. Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, May 2002.
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* search.c - shell backend search function */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include "slap.h"
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#include "shell.h"
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int
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shell_back_search(
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Backend *be,
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Connection *conn,
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Operation *op,
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struct berval *base,
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struct berval *nbase,
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int scope,
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int deref,
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int size,
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int time,
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Filter *filter,
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struct berval *filterstr,
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AttributeName *attrs,
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int attrsonly
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)
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{
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struct shellinfo *si = (struct shellinfo *) be->be_private;
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FILE *rfp, *wfp;
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AttributeName *an;
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if ( IS_NULLCMD( si->si_search ) ) {
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send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM, NULL,
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"search not implemented", NULL, NULL );
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return( -1 );
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}
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if ( (op->o_private = (void *) forkandexec( si->si_search, &rfp, &wfp ))
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== (void *) -1 ) {
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL,
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"could not fork/exec", NULL, NULL );
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return( -1 );
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}
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/* write out the request to the search process */
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fprintf( wfp, "SEARCH\n" );
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fprintf( wfp, "opid: %ld/%ld\n", op->o_connid, (long) op->o_msgid );
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fprintf( wfp, "msgid: %ld\n", (long) op->o_msgid );
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print_suffixes( wfp, be );
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fprintf( wfp, "base: %s\n", base->bv_val );
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fprintf( wfp, "scope: %d\n", scope );
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fprintf( wfp, "deref: %d\n", deref );
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fprintf( wfp, "sizelimit: %d\n", size );
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fprintf( wfp, "timelimit: %d\n", time );
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fprintf( wfp, "filter: %s\n", filterstr->bv_val );
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fprintf( wfp, "attrsonly: %d\n", attrsonly ? 1 : 0 );
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fprintf( wfp, "attrs:%s", attrs == NULL ? " all" : "" );
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for ( an = attrs; an && an->an_name.bv_val; an++ ) {
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fprintf( wfp, " %s", an->an_name.bv_val );
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}
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fprintf( wfp, "\n" );
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fclose( wfp );
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/* read in the results and send them along */
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read_and_send_results( be, conn, op, rfp, attrs, attrsonly );
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fclose( rfp );
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return( 0 );
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}
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