text: /* $OpenLDAP$ */
  /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   *
   * Copyright 1999-2014 The OpenLDAP Foundation.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted only as authorized by the OpenLDAP
   * Public License.
   *
   * A copy of this license is available in file LICENSE in the
   * top-level directory of the distribution or, alternatively, at
   * <http://www.OpenLDAP.org/license.html>.
   */
  /* ACKNOWLEDGEMENTS:
   * This work was initially developed by Kurt Spanier for inclusion
   * in OpenLDAP Software.
   */
  
  /*
   * This tool is a MT reader.  It behaves like slapd-read however
   * with one or more threads simultaneously using the same connection.
   * If -M is enabled, then M threads will also perform write operations.
   */
  
  #include "portable.h"
  
  #include <stdio.h>
  #include "ldap_pvt_thread.h"
  
  #include "ac/stdlib.h"
  
  #include "ac/ctype.h"
  #include "ac/param.h"
  #include "ac/socket.h"
  #include "ac/string.h"
  #include "ac/unistd.h"
  #include "ac/wait.h"
  
  #include "ldap.h"
  #include "lutil.h"
  
  #include "ldap_pvt.h"
  
  #include "slapd-common.h"
  
  #define MAXCONN	512
  #define LOOPS	100
  #define RETRIES	0
  #define DEFAULT_BASE	"ou=people,dc=example,dc=com"
  
  static void
  do_conn( char *uri, char *manager, struct berval *passwd,
  	LDAP **ld, int nobind, int maxretries, int conn_num );
  
  static void
  do_read( LDAP *ld, char *entry,
  	char **attrs, int noattrs, int nobind, int maxloop,
  	int maxretries, int delay, int force, int chaserefs, int idx );
  
  static void
  do_random( LDAP *ld,
  	char *sbase, char *filter, char **attrs, int noattrs, int nobind,
  	int innerloop, int maxretries, int delay, int force, int chaserefs,
  	int idx );
  
  static void
  do_random2( LDAP *ld,
  	char *sbase, char *filter, char **attrs, int noattrs, int nobind,
  	int innerloop, int maxretries, int delay, int force, int chaserefs,
  	int idx );
  
  static void *
  do_onethread( void *arg );
  
  static void *
  do_onerwthread( void *arg );
  
  #define MAX_THREAD	1024
  /* Use same array for readers and writers, offset writers by MAX_THREAD */
  int	rt_pass[MAX_THREAD*2];
  int	rt_fail[MAX_THREAD*2];
  int	*rwt_pass = rt_pass + MAX_THREAD;
  int	*rwt_fail = rt_fail + MAX_THREAD;
  ldap_pvt_thread_t	rtid[MAX_THREAD*2], *rwtid = rtid + MAX_THREAD;
  
  /*
   * Shared globals (command line args)
   */
  LDAP		*ld = NULL;
  char		*entry = NULL;
  char		*filter  = NULL;
  int		loops = LOOPS;
  int		outerloops = 1;
  int		retries = RETRIES;
  int		delay = 0;
  int		force = 0;
  int		chaserefs = 0;
  char		*srchattrs[] = { "1.1", NULL };
  char		**attrs = srchattrs;
  int		noattrs = 0;
  int		nobind = 0;
  int		threads = 1;
  int		rwthreads = 0;
  int		verbose = 0;
  
  int		noconns = 1;
  LDAP		**lds = NULL;
  
  static void
  thread_error(int idx, char *string)
  {
  	char		thrstr[BUFSIZ];
  
  	snprintf(thrstr, BUFSIZ, "error on tidx: %d: %s", idx, string);
  	tester_error( thrstr );
  }
  
  static void
  thread_output(int idx, char *string)
  {
  	char		thrstr[BUFSIZ];
  
  	snprintf(thrstr, BUFSIZ, "tidx: %d says: %s", idx, string);
  	tester_error( thrstr );
  }
  
  static void
  thread_verbose(int idx, char *string)
  {
  	char		thrstr[BUFSIZ];
  
  	if (!verbose)
  		return;
  	snprintf(thrstr, BUFSIZ, "tidx: %d says: %s", idx, string);
  	tester_error( thrstr );
  }
  
  static void
  usage( char *name )
  {
          fprintf( stderr,
  		"usage: %s "
  		"-H <uri> | ([-h <host>] -p <port>) "
  		"-D <manager> "
  		"-w <passwd> "
  		"-e <entry> "
  		"[-A] "
  		"[-C] "
  		"[-F] "
  		"[-N] "
  		"[-v] "
  		"[-c connections] "
  		"[-f filter] "
  		"[-i <ignore>] "
  		"[-l <loops>] "
  		"[-L <outerloops>] "
  		"[-m threads] "
  		"[-M threads] "
  		"[-r <maxretries>] "
  		"[-t <delay>] "
  		"[-T <attrs>] "
  		"[<attrs>] "
  		"\n",
  		name );
  	exit( EXIT_FAILURE );
  }
  
  int
  main( int argc, char **argv )
  {
  	int		i;
  	char		*uri = NULL;
  	char		*host = "localhost";
  	int		port = -1;
  	char		*manager = NULL;
  	struct berval	passwd = { 0, NULL };
  	char		outstr[BUFSIZ];
  	int		ptpass;
  	int		testfail = 0;
  
  
  	tester_init( "slapd-mtread", TESTER_READ );
  
  	/* by default, tolerate referrals and no such object */
  	tester_ignore_str2errlist( "REFERRAL,NO_SUCH_OBJECT" );
  
  	while ( (i = getopt( argc, argv, "ACc:D:e:Ff:H:h:i:L:l:M:m:p:r:t:T:w:v" )) != EOF ) {
  		switch ( i ) {
  		case 'A':
  			noattrs++;
  			break;
  
  		case 'C':
  			chaserefs++;
  			break;
  
  		case 'H':		/* the server uri */
  			uri = strdup( optarg );
  			break;
  
  		case 'h':		/* the servers host */
  			host = strdup( optarg );
  
  		case 'i':
  			tester_ignore_str2errlist( optarg );
  			break;
  
  		case 'N':
  			nobind++;
  			break;
  
  		case 'v':
  			verbose++;
  			break;
  
  		case 'p':		/* the servers port */
  			if ( lutil_atoi( &port, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 'D':		/* the servers manager */
  			manager = strdup( optarg );
  			break;
  
  		case 'w':		/* the server managers password */
  			passwd.bv_val = strdup( optarg );
  			passwd.bv_len = strlen( optarg );
  			memset( optarg, '*', passwd.bv_len );
  			break;
  
  		case 'c':		/* the number of connections */
  			if ( lutil_atoi( &noconns, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 'e':		/* DN to search for */
  			entry = strdup( optarg );
  			break;
  
  		case 'f':		/* the search request */
  			filter = strdup( optarg );
  			break;
  
  		case 'F':
  			force++;
  			break;
  
  		case 'l':		/* the number of loops */
  			if ( lutil_atoi( &loops, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 'L':		/* the number of outerloops */
  			if ( lutil_atoi( &outerloops, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 'M':		/* the number of R/W threads */
  			if ( lutil_atoi( &rwthreads, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			if (rwthreads > MAX_THREAD)
  				rwthreads = MAX_THREAD;
  			break;
  
  		case 'm':		/* the number of threads */
  			if ( lutil_atoi( &threads, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			if (threads > MAX_THREAD)
  				threads = MAX_THREAD;
  			break;
  
  		case 'r':		/* the number of retries */
  			if ( lutil_atoi( &retries, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 't':		/* delay in seconds */
  			if ( lutil_atoi( &delay, optarg ) != 0 ) {
  				usage( argv[0] );
  			}
  			break;
  
  		case 'T':
  			attrs = ldap_str2charray( optarg, "," );
  			if ( attrs == NULL ) {
  				usage( argv[0] );
  			}
  			break;
  
  		default:
  			usage( argv[0] );
  			break;
  		}
  	}
  
  	if (( entry == NULL ) || ( port == -1 && uri == NULL ))
  		usage( argv[0] );
  
  	if ( *entry == '\0' ) {
  		fprintf( stderr, "%s: invalid EMPTY entry DN.\n",
  				argv[0] );
  		exit( EXIT_FAILURE );
  	}
  
  	if ( argv[optind] != NULL ) {
  		attrs = &argv[optind];
  	}
  
  	if (noconns < 1)
  		noconns = 1;
  	if (noconns > MAXCONN)
  		noconns = MAXCONN;
  	lds = (LDAP **) calloc( sizeof(LDAP *), noconns);
  	if (lds == NULL) {
  		fprintf( stderr, "%s: Memory error: calloc noconns.\n",
  				argv[0] );
  		exit( EXIT_FAILURE );
  	}
  
  	uri = tester_uri( uri, host, port );
  	/* One connection and one connection only */
  	do_conn( uri, manager, &passwd, &ld, nobind, retries, 0 );
  	lds[0] = ld;
  	for(i = 1; i < noconns; i++) {
  		do_conn( uri, manager, &passwd, &lds[i], nobind, retries, i );
  	}
  
  	ldap_pvt_thread_initialize();
  
  	snprintf(outstr, BUFSIZ, "MT Test Start: conns: %d (%s)", noconns, uri);
  	tester_error(outstr);
  	snprintf(outstr, BUFSIZ, "Threads: RO: %d RW: %d", threads, rwthreads);
  	tester_error(outstr);
  
  	/* Set up read only threads */
  	for ( i = 0; i < threads; i++ ) {
  		ldap_pvt_thread_create( &rtid[i], 0, do_onethread, &rtid[i]);
  		snprintf(outstr, BUFSIZ, "Created RO thread %d", i);
  		thread_verbose(-1, outstr);
  	}
  	/* Set up read/write threads */
  	for ( i = 0; i < rwthreads; i++ ) {
  		ldap_pvt_thread_create( &rwtid[i], 0, do_onerwthread, &rwtid[i]);
  		snprintf(outstr, BUFSIZ, "Created RW thread %d", i + MAX_THREAD);
  		thread_verbose(-1, outstr);
  	}
  
  	ptpass =  outerloops * loops;
  
  	/* wait for read only threads to complete */
  	for ( i = 0; i < threads; i++ )
  		ldap_pvt_thread_join(rtid[i], NULL);
  	/* wait for read/write threads to complete */
  	for ( i = 0; i < rwthreads; i++ )
  		ldap_pvt_thread_join(rwtid[i], NULL);
  
  	for(i = 0; i < noconns; i++) {
  		if ( lds[i] != NULL ) {
  			ldap_unbind_ext( lds[i], NULL, NULL );
  		}
  	}
  	free( lds );
  
  	for ( i = 0; i < threads; i++ ) {
  		snprintf(outstr, BUFSIZ, "RO thread %d pass=%d fail=%d", i,
  			rt_pass[i], rt_fail[i]);
  		tester_error(outstr);
  		if (rt_fail[i] != 0 || rt_pass[i] != ptpass) {
  			snprintf(outstr, BUFSIZ, "FAIL RO thread %d", i);
  			tester_error(outstr);
  			testfail++;
  		}
  	}
  	for ( i = 0; i < rwthreads; i++ ) {
  		snprintf(outstr, BUFSIZ, "RW thread %d pass=%d fail=%d", i + MAX_THREAD,
  			rwt_pass[i], rwt_fail[i]);
  		tester_error(outstr);
  		if (rwt_fail[i] != 0 || rwt_pass[i] != ptpass) {
  			snprintf(outstr, BUFSIZ, "FAIL RW thread %d", i);
  			tester_error(outstr);
  			testfail++;
  		}
  	}
  	snprintf(outstr, BUFSIZ, "MT Test complete" );
  	tester_error(outstr);
  
  	if (testfail)
  		exit( EXIT_FAILURE );
  	exit( EXIT_SUCCESS );
  }
  
  static void *
  do_onethread( void *arg )
  {
  	int		i, j, thisconn;
  	LDAP		**mlds;
  	char		thrstr[BUFSIZ];
  	int		rc, refcnt = 0;
  	int		idx = (ldap_pvt_thread_t *)arg - rtid;
  
  	mlds = (LDAP **) calloc( sizeof(LDAP *), noconns);
  	if (mlds == NULL) {
  		thread_error( idx, "Memory error: thread calloc for noconns" );
  		exit( EXIT_FAILURE );
  	}
  
  	for ( j = 0; j < outerloops; j++ ) {
  		for(i = 0; i < noconns; i++) {
  			mlds[i] = ldap_dup(lds[i]);
  			if (mlds[i] == NULL) {
  				thread_error( idx, "ldap_dup error" );
  			}
  		}
  		rc = ldap_get_option(mlds[0], LDAP_OPT_SESSION_REFCNT, &refcnt);
  		snprintf(thrstr, BUFSIZ,
  			"RO Thread conns: %d refcnt: %d (rc = %d)",
  			noconns, refcnt, rc);
  		thread_verbose(idx, thrstr);
  
  		thisconn = (idx + j) % noconns;
  		if (thisconn < 0 || thisconn >= noconns)
  			thisconn = 0;
  		if (mlds[thisconn] == NULL) {
  			thread_error( idx, "(failed to dup)");
  			tester_perror( "ldap_dup", "(failed to dup)" );
  			exit( EXIT_FAILURE );
  		}
  		snprintf(thrstr, BUFSIZ, "Using conn %d", thisconn);
  		thread_verbose(idx, thrstr);
  		if ( filter != NULL ) {
  			if (strchr(filter, '['))
  				do_random2( mlds[thisconn], entry, filter, attrs,
  					noattrs, nobind, loops, retries, delay, force,
  					chaserefs, idx );
  			else
  				do_random( mlds[thisconn], entry, filter, attrs,
  					noattrs, nobind, loops, retries, delay, force,
  					chaserefs, idx );
  
  		} else {
  			do_read( mlds[thisconn], entry, attrs,
  				noattrs, nobind, loops, retries, delay, force,
  				chaserefs, idx );
  		}
  		for(i = 0; i < noconns; i++) {
  			(void) ldap_destroy(mlds[i]);
  			mlds[i] = NULL;
  		}
  	}
  	free( mlds );
  	return( NULL );
  }
  
  static void *
  do_onerwthread( void *arg )
  {
  	int		i, j, thisconn;
  	LDAP		**mlds, *ld;
  	char		thrstr[BUFSIZ];
  	char		dn[256], uids[32], cns[32], *base;
  	LDAPMod		*attrp[5], attrs[4];
  	char		*oc_vals[] = { "top", "OpenLDAPperson", NULL };
  	char		*cn_vals[] = { NULL, NULL };
  	char		*sn_vals[] = { NULL, NULL };
  	char		*uid_vals[] = { NULL, NULL };
  	int		ret;
  	int		adds = 0;
  	int		dels = 0;
  	int		rc, refcnt = 0;
  	int		idx = (ldap_pvt_thread_t *)arg - rtid;
  
  	mlds = (LDAP **) calloc( sizeof(LDAP *), noconns);
  	if (mlds == NULL) {
  		thread_error( idx, "Memory error: thread calloc for noconns" );
  		exit( EXIT_FAILURE );
  	}
  
  	snprintf(uids, sizeof(uids), "rwtest%04d", idx);
  	snprintf(cns, sizeof(cns), "rwtest%04d", idx);
  	/* add setup */
  	for (i = 0; i < 4; i++) {
  		attrp[i] = &attrs[i];
  		attrs[i].mod_op = 0;
  	}
  	attrp[4] = NULL;
  	attrs[0].mod_type = "objectClass";
  	attrs[0].mod_values = oc_vals;
  	attrs[1].mod_type = "cn";
  	attrs[1].mod_values = cn_vals;
  	cn_vals[0] = &cns[0];
  	attrs[2].mod_type = "sn";
  	attrs[2].mod_values = sn_vals;
  	sn_vals[0] = &cns[0];
  	attrs[3].mod_type = "uid";
  	attrs[3].mod_values = uid_vals;
  	uid_vals[0] = &uids[0];
  
  	for ( j = 0; j < outerloops; j++ ) {
  		for(i = 0; i < noconns; i++) {
  			mlds[i] = ldap_dup(lds[i]);
  			if (mlds[i] == NULL) {
  				thread_error( idx, "ldap_dup error" );
  			}
  		}
  		rc = ldap_get_option(mlds[0], LDAP_OPT_SESSION_REFCNT, &refcnt);
  		snprintf(thrstr, BUFSIZ,
  			"RW Thread conns: %d refcnt: %d (rc = %d)",
  			noconns, refcnt, rc);
  		thread_verbose(idx, thrstr);
  
  		thisconn = (idx + j) % noconns;
  		if (thisconn < 0 || thisconn >= noconns)
  			thisconn = 0;
  		if (mlds[thisconn] == NULL) {
  			thread_error( idx, "(failed to dup)");
  			tester_perror( "ldap_dup", "(failed to dup)" );
  			exit( EXIT_FAILURE );
  		}
  		snprintf(thrstr, BUFSIZ, "START RW Thread using conn %d", thisconn);
  		thread_verbose(idx, thrstr);
  
  		ld = mlds[thisconn];
  		if (entry != NULL)
  			base = entry;
  		else
  			base = DEFAULT_BASE;
  		snprintf(dn, 256, "cn=%s,%s", cns, base);
  
  		adds = 0;
  		dels = 0;
  		for (i = 0; i < loops; i++) {
  			ret = ldap_add_ext_s(ld, dn, &attrp[0], NULL, NULL);
  			if (ret == LDAP_SUCCESS) {
  				adds++;
  				ret = ldap_delete_ext_s(ld, dn, NULL, NULL);
  				if (ret == LDAP_SUCCESS) {
  					dels++;
  					rt_pass[idx]++;
  				} else {
  					thread_output(idx, ldap_err2string(ret));
  					rt_fail[idx]++;
  				}
  			} else {
  				thread_output(idx, ldap_err2string(ret));
  				rt_fail[idx]++;
  			}
  		}
  
  		snprintf(thrstr, BUFSIZ,
  			"INNER STOP RW Thread using conn %d (%d/%d)",
  			thisconn, adds, dels);
  		thread_verbose(idx, thrstr);
  
  		for(i = 0; i < noconns; i++) {
  			(void) ldap_destroy(mlds[i]);
  			mlds[i] = NULL;
  		}
  	}
  
  	free( mlds );
  	return( NULL );
  }
  
  static void
  do_conn( char *uri, char *manager, struct berval *passwd,
  	LDAP **ldp, int nobind, int maxretries, int conn_num )
  {
  	LDAP	*ld = NULL;
  	int	version = LDAP_VERSION3;
  	int  	i = 0, do_retry = maxretries;
  	int     rc = LDAP_SUCCESS;
  	char	thrstr[BUFSIZ];
  
  retry:;
  	ldap_initialize( &ld, uri );
  	if ( ld == NULL ) {
  		snprintf( thrstr, BUFSIZ, "connection: %d", conn_num );
  		tester_error( thrstr );
  		tester_perror( "ldap_initialize", NULL );
  		exit( EXIT_FAILURE );
  	}
  
  	(void) ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version ); 
  	(void) ldap_set_option( ld, LDAP_OPT_REFERRALS,
  		chaserefs ? LDAP_OPT_ON : LDAP_OPT_OFF );
  
  	if ( do_retry == maxretries ) {
  		snprintf( thrstr, BUFSIZ, "do_conn #%d\n", conn_num );
  		thread_verbose( -1, thrstr );
  	}
  
  	if ( nobind == 0 ) {
  		rc = ldap_sasl_bind_s( ld, manager, LDAP_SASL_SIMPLE, passwd, NULL, NULL, NULL );
  		if ( rc != LDAP_SUCCESS ) {
  			snprintf( thrstr, BUFSIZ, "connection: %d", conn_num );
  			tester_error( thrstr );
  			tester_ldap_error( ld, "ldap_sasl_bind_s", NULL );
  			switch ( rc ) {
  			case LDAP_BUSY:
  			case LDAP_UNAVAILABLE:
  				if ( do_retry > 0 ) {
  					ldap_unbind_ext( ld, NULL, NULL );
  					ld = NULL;
  					do_retry--;
  					if ( delay != 0 ) {
  					    sleep( delay );
  					}
  					goto retry;
  				}
  			/* fallthru */
  			default:
  				break;
  			}
  			exit( EXIT_FAILURE );
  		}
  	}
  	*ldp = ld;
  }
  
  static void
  do_random( LDAP *ld,
  	char *sbase, char *filter, char **srchattrs, int noattrs, int nobind,
  	int innerloop, int maxretries, int delay, int force, int chaserefs,
  	int idx )
  {
  	int  	i = 0, do_retry = maxretries;
  	char	*attrs[ 2 ];
  	int     rc = LDAP_SUCCESS;
  	int	nvalues = 0;
  	char	**values = NULL;
  	LDAPMessage *res = NULL, *e = NULL;
  	char	thrstr[BUFSIZ];
  
  	attrs[ 0 ] = LDAP_NO_ATTRS;
  	attrs[ 1 ] = NULL;
  
  	snprintf( thrstr, BUFSIZ,
  			"Read(%d): base=\"%s\", filter=\"%s\".\n",
  			innerloop, sbase, filter );
  	thread_verbose( idx, thrstr );
  
  	rc = ldap_search_ext_s( ld, sbase, LDAP_SCOPE_SUBTREE,
  		filter, attrs, 0, NULL, NULL, NULL, LDAP_NO_LIMIT, &res );
  	switch ( rc ) {
  	case LDAP_SIZELIMIT_EXCEEDED:
  	case LDAP_TIMELIMIT_EXCEEDED:
  	case LDAP_SUCCESS:
  		nvalues = ldap_count_entries( ld, res );
  		if ( nvalues == 0 ) {
  			if ( rc ) {
  				tester_ldap_error( ld, "ldap_search_ext_s", NULL );
  			}
  			break;
  		}
  
  		values = malloc( ( nvalues + 1 ) * sizeof( char * ) );
  		for ( i = 0, e = ldap_first_entry( ld, res ); e != NULL; i++, e = ldap_next_entry( ld, e ) )
  		{
  			values[ i ] = ldap_get_dn( ld, e );
  		}
  		values[ i ] = NULL;
  
  		ldap_msgfree( res );
  
  		if ( do_retry == maxretries ) {
  			snprintf( thrstr, BUFSIZ,
  				"Read base=\"%s\" filter=\"%s\" got %d values.\n",
  				sbase, filter, nvalues );
  			thread_verbose( idx, thrstr );
  		}
  
  		for ( i = 0; i < innerloop; i++ ) {
  			int	r = ((double)nvalues)*rand()/(RAND_MAX + 1.0);
  
  			do_read( ld, values[ r ],
  				srchattrs, noattrs, nobind, 1, maxretries,
  				delay, force, chaserefs, idx );
  		}
  		for( i = 0; i < nvalues; i++) {
  			if (values[i] != NULL)
  				ldap_memfree( values[i] );
  		}
  		free( values );
  		break;
  
  	default:
  		tester_ldap_error( ld, "ldap_search_ext_s", NULL );
  		break;
  	}
  
  	snprintf( thrstr, BUFSIZ, "Search done (%d).\n", rc );
  	thread_verbose( idx, thrstr );
  }
  
  /* substitute a generated int into the filter */
  static void
  do_random2( LDAP *ld,
  	char *sbase, char *filter, char **srchattrs, int noattrs, int nobind,
  	int innerloop, int maxretries, int delay, int force, int chaserefs,
  	int idx )
  {
  	int  	i = 0, do_retry = maxretries;
  	int     rc = LDAP_SUCCESS;
  	int		lo, hi, range;
  	int	flen;
  	LDAPMessage *res = NULL, *e = NULL;
  	char	*ptr, *ftail;
  	char	thrstr[BUFSIZ];
  	char	fbuf[BUFSIZ];
  
  	snprintf( thrstr, BUFSIZ,
  			"Read(%d): base=\"%s\", filter=\"%s\".\n",
  			innerloop, sbase, filter );
  	thread_verbose( idx, thrstr );
  
  	ptr = strchr(filter, '[');
  	if (!ptr)
  		return;
  	ftail = strchr(filter, ']');
  	if (!ftail || ftail < ptr)
  		return;
  
  	sscanf(ptr, "[%d-%d]", &lo, &hi);
  	range = hi - lo + 1;
  
  	flen = ptr - filter;
  	ftail++;
  
  	for ( i = 0; i < innerloop; i++ ) {
  		int	r = ((double)range)*rand()/(RAND_MAX + 1.0);
  		sprintf(fbuf, "%.*s%d%s", flen, filter, r, ftail);
  
  		rc = ldap_search_ext_s( ld, sbase, LDAP_SCOPE_SUBTREE,
  				fbuf, srchattrs, noattrs, NULL, NULL, NULL,
  				LDAP_NO_LIMIT, &res );
  		if ( res != NULL ) {
  			ldap_msgfree( res );
  		}
  		if ( rc == 0 ) {
  			rt_pass[idx]++;
  		} else {
  			int		first = tester_ignore_err( rc );
  			char		buf[ BUFSIZ ];
  
  			rt_fail[idx]++;
  			snprintf( buf, sizeof( buf ), "ldap_search_ext_s(%s)", entry );
  
  			/* if ignore.. */
  			if ( first ) {
  				/* only log if first occurrence */
  				if ( ( force < 2 && first > 0 ) || abs(first) == 1 ) {
  					tester_ldap_error( ld, buf, NULL );
  				}
  				continue;
  			}
  
  			/* busy needs special handling */
  			tester_ldap_error( ld, buf, NULL );
  			if ( rc == LDAP_BUSY && do_retry > 0 ) {
  				do_retry--;
  				continue;
  			}
  			break;
  		}
  	}
  
  	snprintf( thrstr, BUFSIZ, "Search done (%d).\n", rc );
  	thread_verbose( idx, thrstr );
  }
  
  static void
  do_read( LDAP *ld, char *entry,
  	char **attrs, int noattrs, int nobind, int maxloop,
  	int maxretries, int delay, int force, int chaserefs, int idx )
  {
  	int  	i = 0, do_retry = maxretries;
  	int     rc = LDAP_SUCCESS;
  	char	thrstr[BUFSIZ];
  
  retry:;
  	if ( do_retry == maxretries ) {
  		snprintf( thrstr, BUFSIZ, "Read(%d): entry=\"%s\".\n",
  			maxloop, entry );
  		thread_verbose( idx, thrstr );
  	}
  
  	snprintf(thrstr, BUFSIZ, "LD %p cnt: %d (retried %d) (%s)", \
  		 (void *) ld, maxloop, (do_retry - maxretries), entry);
  	thread_verbose( idx, thrstr );
  
  	for ( ; i < maxloop; i++ ) {
  		LDAPMessage *res = NULL;
  
  		rc = ldap_search_ext_s( ld, entry, LDAP_SCOPE_BASE,
  				NULL, attrs, noattrs, NULL, NULL, NULL,
  				LDAP_NO_LIMIT, &res );
  		if ( res != NULL ) {
  			ldap_msgfree( res );
  		}
  
  		if ( rc == 0 ) {
  			rt_pass[idx]++;
  		} else {
  			int		first = tester_ignore_err( rc );
  			char		buf[ BUFSIZ ];
  
  			rt_fail[idx]++;
  			snprintf( buf, sizeof( buf ), "ldap_search_ext_s(%s)", entry );
  
  			/* if ignore.. */
  			if ( first ) {
  				/* only log if first occurrence */
  				if ( ( force < 2 && first > 0 ) || abs(first) == 1 ) {
  					tester_ldap_error( ld, buf, NULL );
  				}
  				continue;
  			}
  
  			/* busy needs special handling */
  			tester_ldap_error( ld, buf, NULL );
  			if ( rc == LDAP_BUSY && do_retry > 0 ) {
  				do_retry--;
  				goto retry;
  			}
  			break;
  		}
  	}
  }
  