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main.c revision 1.1
      1 /* $OpenLDAP: pkg/ldap/servers/slapd/main.c,v 1.239.2.12 2008/02/12 00:46:46 quanah Exp $ */
      2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      3  *
      4  * Copyright 1998-2008 The OpenLDAP Foundation.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted only as authorized by the OpenLDAP
      9  * Public License.
     10  *
     11  * A copy of this license is available in the file LICENSE in the
     12  * top-level directory of the distribution or, alternatively, at
     13  * <http://www.OpenLDAP.org/license.html>.
     14  */
     15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
     16  * All rights reserved.
     17  *
     18  * Redistribution and use in source and binary forms are permitted
     19  * provided that this notice is preserved and that due credit is given
     20  * to the University of Michigan at Ann Arbor. The name of the University
     21  * may not be used to endorse or promote products derived from this
     22  * software without specific prior written permission. This software
     23  * is provided ``as is'' without express or implied warranty.
     24  */
     25 
     26 #include "portable.h"
     27 
     28 #include <stdio.h>
     29 
     30 #include <ac/ctype.h>
     31 #include <ac/socket.h>
     32 #include <ac/string.h>
     33 #include <ac/time.h>
     34 #include <ac/unistd.h>
     35 #include <ac/wait.h>
     36 #include <ac/errno.h>
     37 
     38 #include "slap.h"
     39 #include "lutil.h"
     40 #include "ldif.h"
     41 
     42 #ifdef LDAP_SLAPI
     43 #include "slapi/slapi.h"
     44 #endif
     45 
     46 #ifdef LDAP_SIGCHLD
     47 static RETSIGTYPE wait4child( int sig );
     48 #endif
     49 
     50 #ifdef HAVE_NT_SERVICE_MANAGER
     51 #define MAIN_RETURN(x) return
     52 static struct sockaddr_in	bind_addr;
     53 
     54 #define SERVICE_EXIT( e, n )	do { \
     55 	if ( is_NT_Service ) { \
     56 		lutil_ServiceStatus.dwWin32ExitCode				= (e); \
     57 		lutil_ServiceStatus.dwServiceSpecificExitCode	= (n); \
     58 	} \
     59 } while ( 0 )
     60 
     61 #else
     62 #define SERVICE_EXIT( e, n )
     63 #define MAIN_RETURN(x) return(x)
     64 #endif
     65 
     66 typedef int (MainFunc) LDAP_P(( int argc, char *argv[] ));
     67 extern MainFunc slapadd, slapcat, slapdn, slapindex, slappasswd,
     68 	slaptest, slapauth, slapacl;
     69 
     70 static struct {
     71 	char *name;
     72 	MainFunc *func;
     73 } tools[] = {
     74 	{"slapadd", slapadd},
     75 	{"slapcat", slapcat},
     76 	{"slapdn", slapdn},
     77 	{"slapindex", slapindex},
     78 	{"slappasswd", slappasswd},
     79 	{"slaptest", slaptest},
     80 	{"slapauth", slapauth},
     81 	{"slapacl", slapacl},
     82 	/* NOTE: new tools must be added in chronological order,
     83 	 * not in alphabetical order, because for backwards
     84 	 * compatibility name[4] is used to identify the
     85 	 * tools; so name[4]=='a' must refer to "slapadd" and
     86 	 * not to "slapauth".  Alphabetical order can be used
     87 	 * for tools whose name[4] is not used yet */
     88 	{NULL, NULL}
     89 };
     90 
     91 /*
     92  * when more than one slapd is running on one machine, each one might have
     93  * it's own LOCAL for syslogging and must have its own pid/args files
     94  */
     95 
     96 #ifndef HAVE_MKVERSION
     97 const char Versionstr[] =
     98 	OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
     99 #endif
    100 
    101 #define	CHECK_NONE	0x00
    102 #define	CHECK_CONFIG	0x01
    103 #define	CHECK_LOGLEVEL	0x02
    104 static int check = CHECK_NONE;
    105 static int version = 0;
    106 
    107 void *slap_tls_ctx;
    108 LDAP *slap_tls_ld;
    109 
    110 static int
    111 slapd_opt_slp( const char *val, void *arg )
    112 {
    113 #ifdef HAVE_SLP
    114 	/* NULL is default */
    115 	if ( val == NULL || *val == '(' || strcasecmp( val, "on" ) == 0 ) {
    116 		slapd_register_slp = 1;
    117 		slapd_slp_attrs = (val != NULL && *val == '(') ? val : NULL;
    118 
    119 	} else if ( strcasecmp( val, "off" ) == 0 ) {
    120 		slapd_register_slp = 0;
    121 
    122 	/* NOTE: add support for URL specification? */
    123 
    124 	} else {
    125 		fprintf(stderr, "unrecognized value \"%s\" for SLP option\n", val );
    126 		return -1;
    127 	}
    128 
    129 	return 0;
    130 
    131 #else
    132 	fputs( "slapd: SLP support is not available\n", stderr );
    133 	return 0;
    134 #endif
    135 }
    136 
    137 /*
    138  * Option helper structure:
    139  *
    140  * oh_nam	is left-hand part of <option>[=<value>]
    141  * oh_fnc	is handler function
    142  * oh_arg	is an optional arg to oh_fnc
    143  * oh_usage	is the one-line usage string related to the option,
    144  *		which is assumed to start with <option>[=<value>]
    145  *
    146  * please leave valid options in the structure, and optionally #ifdef
    147  * their processing inside the helper, so that reasonable and helpful
    148  * error messages can be generated if a disabled option is requested.
    149  */
    150 struct option_helper {
    151 	struct berval	oh_name;
    152 	int		(*oh_fnc)(const char *val, void *arg);
    153 	void		*oh_arg;
    154 	const char	*oh_usage;
    155 } option_helpers[] = {
    156 	{ BER_BVC("slp"),	slapd_opt_slp,	NULL, "slp[={on|off|(attrs)}] enable/disable SLP using (attrs)" },
    157 	{ BER_BVNULL, 0, NULL, NULL }
    158 };
    159 
    160 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    161 #ifdef LOG_LOCAL4
    162 int
    163 parse_syslog_user( const char *arg, int *syslogUser )
    164 {
    165 	static slap_verbmasks syslogUsers[] = {
    166 		{ BER_BVC( "LOCAL0" ), LOG_LOCAL0 },
    167 		{ BER_BVC( "LOCAL1" ), LOG_LOCAL1 },
    168 		{ BER_BVC( "LOCAL2" ), LOG_LOCAL2 },
    169 		{ BER_BVC( "LOCAL3" ), LOG_LOCAL3 },
    170 		{ BER_BVC( "LOCAL4" ), LOG_LOCAL4 },
    171 		{ BER_BVC( "LOCAL5" ), LOG_LOCAL5 },
    172 		{ BER_BVC( "LOCAL6" ), LOG_LOCAL6 },
    173 		{ BER_BVC( "LOCAL7" ), LOG_LOCAL7 },
    174 #ifdef LOG_USER
    175 		{ BER_BVC( "USER" ), LOG_USER },
    176 #endif /* LOG_USER */
    177 #ifdef LOG_DAEMON
    178 		{ BER_BVC( "DAEMON" ), LOG_DAEMON },
    179 #endif /* LOG_DAEMON */
    180 		{ BER_BVNULL, 0 }
    181 	};
    182 	int i = verb_to_mask( arg, syslogUsers );
    183 
    184 	if ( BER_BVISNULL( &syslogUsers[ i ].word ) ) {
    185 		Debug( LDAP_DEBUG_ANY,
    186 			"unrecognized syslog user \"%s\".\n",
    187 			arg, 0, 0 );
    188 		return 1;
    189 	}
    190 
    191 	*syslogUser = syslogUsers[ i ].mask;
    192 
    193 	return 0;
    194 }
    195 #endif /* LOG_LOCAL4 */
    196 
    197 int
    198 parse_syslog_level( const char *arg, int *levelp )
    199 {
    200 	static slap_verbmasks	str2syslog_level[] = {
    201 		{ BER_BVC( "EMERG" ),	LOG_EMERG },
    202 		{ BER_BVC( "ALERT" ),	LOG_ALERT },
    203 		{ BER_BVC( "CRIT" ),	LOG_CRIT },
    204 		{ BER_BVC( "ERR" ),	LOG_ERR },
    205 		{ BER_BVC( "WARNING" ),	LOG_WARNING },
    206 		{ BER_BVC( "NOTICE" ),	LOG_NOTICE },
    207 		{ BER_BVC( "INFO" ),	LOG_INFO },
    208 		{ BER_BVC( "DEBUG" ),	LOG_DEBUG },
    209 		{ BER_BVNULL, 0 }
    210 	};
    211 	int i = verb_to_mask( arg, str2syslog_level );
    212 	if ( BER_BVISNULL( &str2syslog_level[ i ].word ) ) {
    213 		Debug( LDAP_DEBUG_ANY,
    214 			"unknown syslog level \"%s\".\n",
    215 			arg, 0, 0 );
    216 		return 1;
    217 	}
    218 
    219 	*levelp = str2syslog_level[ i ].mask;
    220 
    221 	return 0;
    222 }
    223 #endif /* LDAP_DEBUG && LDAP_SYSLOG */
    224 
    225 int
    226 parse_debug_unknowns( char **unknowns, int *levelp )
    227 {
    228 	int i, level, rc = 0;
    229 
    230 	for ( i = 0; unknowns[ i ] != NULL; i++ ) {
    231 		level = 0;
    232 		if ( str2loglevel( unknowns[ i ], &level )) {
    233 			fprintf( stderr,
    234 				"unrecognized log level \"%s\"\n", unknowns[ i ] );
    235 			rc = 1;
    236 		} else {
    237 			*levelp |= level;
    238 		}
    239 	}
    240 	return rc;
    241 }
    242 
    243 int
    244 parse_debug_level( const char *arg, int *levelp, char ***unknowns )
    245 {
    246 	int	level;
    247 
    248 	if ( arg && arg[ 0 ] != '-' && !isdigit( (unsigned char) arg[ 0 ] ) )
    249 	{
    250 		int	i;
    251 		char	**levels;
    252 
    253 		levels = ldap_str2charray( arg, "," );
    254 
    255 		for ( i = 0; levels[ i ] != NULL; i++ ) {
    256 			level = 0;
    257 
    258 			if ( str2loglevel( levels[ i ], &level ) ) {
    259 				/* remember this for later */
    260 				ldap_charray_add( unknowns, levels[ i ] );
    261 				fprintf( stderr,
    262 					"unrecognized log level \"%s\" (deferred)\n",
    263 					levels[ i ] );
    264 			} else {
    265 				*levelp |= level;
    266 			}
    267 		}
    268 
    269 		ldap_charray_free( levels );
    270 
    271 	} else {
    272 		if ( lutil_atoix( &level, arg, 0 ) != 0 ) {
    273 			fprintf( stderr,
    274 				"unrecognized log level "
    275 				"\"%s\"\n", arg );
    276 			return 1;
    277 		}
    278 
    279 		if ( level == 0 ) {
    280 			*levelp = 0;
    281 
    282 		} else {
    283 			*levelp |= level;
    284 		}
    285 	}
    286 
    287 	return 0;
    288 }
    289 
    290 static void
    291 usage( char *name )
    292 {
    293 	fprintf( stderr,
    294 		"usage: %s options\n", name );
    295 	fprintf( stderr,
    296 		"\t-4\t\tIPv4 only\n"
    297 		"\t-6\t\tIPv6 only\n"
    298 		"\t-T {acl|add|auth|cat|dn|index|passwd|test}\n"
    299 		"\t\t\tRun in Tool mode\n"
    300 		"\t-c cookie\tSync cookie of consumer\n"
    301 		"\t-d level\tDebug level" "\n"
    302 		"\t-f filename\tConfiguration file\n"
    303 		"\t-F dir\tConfiguration directory\n"
    304 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    305 		"\t-g group\tGroup (id or name) to run as\n"
    306 #endif
    307 		"\t-h URLs\t\tList of URLs to serve\n"
    308 #ifdef SLAP_DEFAULT_SYSLOG_USER
    309 		"\t-l facility\tSyslog facility (default: LOCAL4)\n"
    310 #endif
    311 		"\t-n serverName\tService name\n"
    312 		"\t-o <opt>[=val] generic means to specify options" );
    313 	if ( !BER_BVISNULL( &option_helpers[0].oh_name ) ) {
    314 		int	i;
    315 
    316 		fprintf( stderr, "; supported options:\n" );
    317 		for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name ); i++) {
    318 			fprintf( stderr, "\t\t%s\n", option_helpers[i].oh_usage );
    319 		}
    320 	} else {
    321 		fprintf( stderr, "\n" );
    322 	}
    323 	fprintf( stderr,
    324 #ifdef HAVE_CHROOT
    325 		"\t-r directory\tSandbox directory to chroot to\n"
    326 #endif
    327 		"\t-s level\tSyslog level\n"
    328 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    329 		"\t-u user\t\tUser (id or name) to run as\n"
    330 #endif
    331 		"\t-V\t\tprint version info (-VV only)\n"
    332     );
    333 }
    334 
    335 #ifdef HAVE_NT_SERVICE_MANAGER
    336 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
    337 #else
    338 int main( int argc, char **argv )
    339 #endif
    340 {
    341 	int		i, no_detach = 0;
    342 	int		rc = 1;
    343 	char *urls = NULL;
    344 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    345 	char *username = NULL;
    346 	char *groupname = NULL;
    347 #endif
    348 #if defined(HAVE_CHROOT)
    349 	char *sandbox = NULL;
    350 #endif
    351 #ifdef SLAP_DEFAULT_SYSLOG_USER
    352 	int syslogUser = SLAP_DEFAULT_SYSLOG_USER;
    353 #endif
    354 
    355 	int g_argc = argc;
    356 	char **g_argv = argv;
    357 
    358 	char *configfile = NULL;
    359 	char *configdir = NULL;
    360 	char *serverName;
    361 	int serverMode = SLAP_SERVER_MODE;
    362 
    363 	struct sync_cookie *scp = NULL;
    364 	struct sync_cookie *scp_entry = NULL;
    365 
    366 	char **debug_unknowns = NULL;
    367 	char **syslog_unknowns = NULL;
    368 
    369 	char *serverNamePrefix = "";
    370 	size_t	l;
    371 
    372 	int slapd_pid_file_unlink = 0, slapd_args_file_unlink = 0;
    373 	int firstopt = 1;
    374 
    375 #ifdef CSRIMALLOC
    376 	FILE *leakfile;
    377 	if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
    378 		leakfile = stderr;
    379 	}
    380 #endif
    381 
    382 	slap_sl_mem_init();
    383 
    384 	(void) ldap_pvt_thread_initialize();
    385 
    386 	serverName = lutil_progname( "slapd", argc, argv );
    387 
    388 	if ( strcmp( serverName, "slapd" ) ) {
    389 		for (i=0; tools[i].name; i++) {
    390 			if ( !strcmp( serverName, tools[i].name ) ) {
    391 				rc = tools[i].func(argc, argv);
    392 				MAIN_RETURN(rc);
    393 			}
    394 		}
    395 	}
    396 
    397 #ifdef HAVE_NT_SERVICE_MANAGER
    398 	{
    399 		int *ip;
    400 		char *newConfigFile;
    401 		char *newConfigDir;
    402 		char *newUrls;
    403 		char *regService = NULL;
    404 
    405 		if ( is_NT_Service ) {
    406 			lutil_CommenceStartupProcessing( serverName, slap_sig_shutdown );
    407 			if ( strcmp(serverName, SERVICE_NAME) )
    408 			    regService = serverName;
    409 		}
    410 
    411 		ip = (int*)lutil_getRegParam( regService, "DebugLevel" );
    412 		if ( ip != NULL ) {
    413 			slap_debug = *ip;
    414 			Debug( LDAP_DEBUG_ANY,
    415 				"new debug level from registry is: %d\n", slap_debug, 0, 0 );
    416 		}
    417 
    418 		newUrls = (char *) lutil_getRegParam(regService, "Urls");
    419 		if (newUrls) {
    420 		    if (urls)
    421 			ch_free(urls);
    422 
    423 		    urls = ch_strdup(newUrls);
    424 		    Debug(LDAP_DEBUG_ANY, "new urls from registry: %s\n",
    425 				urls, 0, 0);
    426 		}
    427 
    428 		newConfigFile = (char*)lutil_getRegParam( regService, "ConfigFile" );
    429 		if ( newConfigFile != NULL ) {
    430 			configfile = newConfigFile;
    431 			Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
    432 		}
    433 
    434 		newConfigDir = (char*)lutil_getRegParam( regService, "ConfigDir" );
    435 		if ( newConfigDir != NULL ) {
    436 			configdir = newConfigDir;
    437 			Debug ( LDAP_DEBUG_ANY, "new config dir from registry is: %s\n", configdir, 0, 0 );
    438 		}
    439 	}
    440 #endif
    441 
    442 	while ( (i = getopt( argc, argv,
    443 			     "c:d:f:F:h:n:o:s:tT:V"
    444 #ifdef LDAP_PF_INET6
    445 				"46"
    446 #endif
    447 #ifdef HAVE_CHROOT
    448 				"r:"
    449 #endif
    450 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    451 				"S:"
    452 #ifdef LOG_LOCAL4
    453 				"l:"
    454 #endif
    455 #endif
    456 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    457 				"u:g:"
    458 #endif
    459 			     )) != EOF ) {
    460 		switch ( i ) {
    461 #ifdef LDAP_PF_INET6
    462 		case '4':
    463 			slap_inet4or6 = AF_INET;
    464 			break;
    465 		case '6':
    466 			slap_inet4or6 = AF_INET6;
    467 			break;
    468 #endif
    469 
    470 		case 'h':	/* listen URLs */
    471 			if ( urls != NULL ) free( urls );
    472 			urls = ch_strdup( optarg );
    473 			break;
    474 
    475 		case 'c':	/* provide sync cookie, override if exist in replica */
    476 			scp = (struct sync_cookie *) ch_calloc( 1,
    477 										sizeof( struct sync_cookie ));
    478 			ber_str2bv( optarg, 0, 1, &scp->octet_str );
    479 
    480 			/* This only parses out the rid at this point */
    481 			slap_parse_sync_cookie( scp, NULL );
    482 
    483 			if ( scp->rid == -1 ) {
    484 				Debug( LDAP_DEBUG_ANY,
    485 						"main: invalid cookie \"%s\"\n",
    486 						optarg, 0, 0 );
    487 				slap_sync_cookie_free( scp, 1 );
    488 				goto destroy;
    489 			}
    490 
    491 			LDAP_STAILQ_FOREACH( scp_entry, &slap_sync_cookie, sc_next ) {
    492 				if ( scp->rid == scp_entry->rid ) {
    493 					Debug( LDAP_DEBUG_ANY,
    494 						    "main: duplicated replica id in cookies\n",
    495 							0, 0, 0 );
    496 					slap_sync_cookie_free( scp, 1 );
    497 					goto destroy;
    498 				}
    499 			}
    500 			LDAP_STAILQ_INSERT_TAIL( &slap_sync_cookie, scp, sc_next );
    501 			break;
    502 
    503 		case 'd': {	/* set debug level and 'do not detach' flag */
    504 			int	level = 0;
    505 
    506 			if ( strcmp( optarg, "?" ) == 0 ) {
    507 				check |= CHECK_LOGLEVEL;
    508 				break;
    509 			}
    510 
    511 			no_detach = 1;
    512 			if ( parse_debug_level( optarg, &level, &debug_unknowns ) ) {
    513 				goto destroy;
    514 			}
    515 #ifdef LDAP_DEBUG
    516 			slap_debug |= level;
    517 #else
    518 			if ( level != 0 )
    519 				fputs( "must compile with LDAP_DEBUG for debugging\n",
    520 				       stderr );
    521 #endif
    522 			} break;
    523 
    524 		case 'f':	/* read config file */
    525 			configfile = ch_strdup( optarg );
    526 			break;
    527 
    528 		case 'F':	/* use config dir */
    529 			configdir = ch_strdup( optarg );
    530 			break;
    531 
    532 		case 'o': {
    533 			char		*val = strchr( optarg, '=' );
    534 			struct berval	opt;
    535 
    536 			opt.bv_val = optarg;
    537 
    538 			if ( val ) {
    539 				opt.bv_len = ( val - optarg );
    540 				val++;
    541 
    542 			} else {
    543 				opt.bv_len = strlen( optarg );
    544 			}
    545 
    546 			for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name ); i++ ) {
    547 				if ( ber_bvstrcasecmp( &option_helpers[i].oh_name, &opt ) == 0 ) {
    548 					assert( option_helpers[i].oh_fnc != NULL );
    549 					if ( (*option_helpers[i].oh_fnc)( val, option_helpers[i].oh_arg ) == -1 ) {
    550 						/* we assume the option parsing helper
    551 						 * issues appropriate and self-explanatory
    552 						 * error messages... */
    553 						goto stop;
    554 					}
    555 					break;
    556 				}
    557 			}
    558 
    559 			if ( BER_BVISNULL( &option_helpers[i].oh_name ) ) {
    560 				goto unhandled_option;
    561 			}
    562 			break;
    563 		}
    564 
    565 		case 's':	/* set syslog level */
    566 			if ( strcmp( optarg, "?" ) == 0 ) {
    567 				check |= CHECK_LOGLEVEL;
    568 				break;
    569 			}
    570 
    571 			if ( parse_debug_level( optarg, &ldap_syslog, &syslog_unknowns ) ) {
    572 				goto destroy;
    573 			}
    574 			break;
    575 
    576 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    577 		case 'S':
    578 			if ( parse_syslog_level( optarg, &ldap_syslog_level ) ) {
    579 				goto destroy;
    580 			}
    581 			break;
    582 
    583 #ifdef LOG_LOCAL4
    584 		case 'l':	/* set syslog local user */
    585 			if ( parse_syslog_user( optarg, &syslogUser ) ) {
    586 				goto destroy;
    587 			}
    588 			break;
    589 #endif
    590 #endif /* LDAP_DEBUG && LDAP_SYSLOG */
    591 
    592 #ifdef HAVE_CHROOT
    593 		case 'r':
    594 			if( sandbox ) free(sandbox);
    595 			sandbox = ch_strdup( optarg );
    596 			break;
    597 #endif
    598 
    599 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    600 		case 'u':	/* user name */
    601 			if( username ) free(username);
    602 			username = ch_strdup( optarg );
    603 			break;
    604 
    605 		case 'g':	/* group name */
    606 			if( groupname ) free(groupname);
    607 			groupname = ch_strdup( optarg );
    608 			break;
    609 #endif /* SETUID && GETUID */
    610 
    611 		case 'n':  /* NT service name */
    612 			serverName = ch_strdup( optarg );
    613 			break;
    614 
    615 		case 't':
    616 			/* deprecated; use slaptest instead */
    617 			fprintf( stderr, "option -t deprecated; "
    618 				"use slaptest command instead\n" );
    619 			check |= CHECK_CONFIG;
    620 			break;
    621 
    622 		case 'V':
    623 			version++;
    624 			break;
    625 
    626 		case 'T':
    627 			if ( firstopt == 0 ) {
    628 				fprintf( stderr, "warning: \"-T %s\" "
    629 					"should be the first option.\n",
    630 					optarg );
    631 			}
    632 
    633 			/* try full option string first */
    634 			for ( i = 0; tools[i].name; i++ ) {
    635 				if ( strcmp( optarg, &tools[i].name[4] ) == 0 ) {
    636 					rc = tools[i].func( argc, argv );
    637 					MAIN_RETURN( rc );
    638 				}
    639 			}
    640 
    641 			/* try bits of option string (backward compatibility for single char) */
    642 			l = strlen( optarg );
    643 			for ( i = 0; tools[i].name; i++ ) {
    644 				if ( strncmp( optarg, &tools[i].name[4], l ) == 0 ) {
    645 					rc = tools[i].func( argc, argv );
    646 					MAIN_RETURN( rc );
    647 				}
    648 			}
    649 
    650 			/* issue error */
    651 			serverName = optarg;
    652 			serverNamePrefix = "slap";
    653 			fprintf( stderr, "program name \"%s%s\" unrecognized; "
    654 					"aborting...\n", serverNamePrefix, serverName );
    655 			/* FALLTHRU */
    656 		default:
    657 unhandled_option:;
    658 			usage( argv[0] );
    659 			rc = 1;
    660 			SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
    661 			goto stop;
    662 		}
    663 
    664 		if ( firstopt ) {
    665 			firstopt = 0;
    666 		}
    667 	}
    668 
    669 	ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
    670 	ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
    671 	ldif_debug = slap_debug;
    672 
    673 	if ( version ) {
    674 		fprintf( stderr, "%s\n", Versionstr );
    675 		if ( version > 1 ) goto stop;
    676 	}
    677 
    678 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    679 	{
    680 		char *logName;
    681 #ifdef HAVE_EBCDIC
    682 		logName = ch_strdup( serverName );
    683 		__atoe( logName );
    684 #else
    685 		logName = serverName;
    686 #endif
    687 
    688 #ifdef LOG_LOCAL4
    689 		openlog( logName, OPENLOG_OPTIONS, syslogUser );
    690 #elif defined LOG_DEBUG
    691 		openlog( logName, OPENLOG_OPTIONS );
    692 #endif
    693 #ifdef HAVE_EBCDIC
    694 		free( logName );
    695 #endif
    696 	}
    697 #endif /* LDAP_DEBUG && LDAP_SYSLOG */
    698 
    699 	Debug( LDAP_DEBUG_ANY, "%s", Versionstr, 0, 0 );
    700 
    701 	global_host = ldap_pvt_get_fqdn( NULL );
    702 
    703 	if( check == CHECK_NONE && slapd_daemon_init( urls ) != 0 ) {
    704 		rc = 1;
    705 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
    706 		goto stop;
    707 	}
    708 
    709 #if defined(HAVE_CHROOT)
    710 	if ( sandbox ) {
    711 		if ( chdir( sandbox ) ) {
    712 			perror("chdir");
    713 			rc = 1;
    714 			goto stop;
    715 		}
    716 		if ( chroot( sandbox ) ) {
    717 			perror("chroot");
    718 			rc = 1;
    719 			goto stop;
    720 		}
    721 	}
    722 #endif
    723 
    724 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    725 	if ( username != NULL || groupname != NULL ) {
    726 		slap_init_user( username, groupname );
    727 	}
    728 #endif
    729 
    730 	extops_init();
    731 	lutil_passwd_init();
    732 
    733 #ifdef HAVE_TLS
    734 	rc = ldap_create( &slap_tls_ld );
    735 	if ( rc ) {
    736 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
    737 		goto destroy;
    738 	}
    739 	/* Library defaults to full certificate checking. This is correct when
    740 	 * a client is verifying a server because all servers should have a
    741 	 * valid cert. But few clients have valid certs, so we want our default
    742 	 * to be no checking. The config file can override this as usual.
    743 	 */
    744 	rc = LDAP_OPT_X_TLS_NEVER;
    745 	(void) ldap_pvt_tls_set_option( slap_tls_ld, LDAP_OPT_X_TLS_REQUIRE_CERT, &rc );
    746 #endif
    747 
    748 	rc = slap_init( serverMode, serverName );
    749 	if ( rc ) {
    750 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
    751 		goto destroy;
    752 	}
    753 
    754 	if ( read_config( configfile, configdir ) != 0 ) {
    755 		rc = 1;
    756 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
    757 
    758 		if ( check & CHECK_CONFIG ) {
    759 			fprintf( stderr, "config check failed\n" );
    760 		}
    761 
    762 		goto destroy;
    763 	}
    764 
    765 	if ( debug_unknowns ) {
    766 		rc = parse_debug_unknowns( debug_unknowns, &slap_debug );
    767 		ldap_charray_free( debug_unknowns );
    768 		debug_unknowns = NULL;
    769 		if ( rc )
    770 			goto destroy;
    771 	}
    772 	if ( syslog_unknowns ) {
    773 		rc = parse_debug_unknowns( syslog_unknowns, &ldap_syslog );
    774 		ldap_charray_free( syslog_unknowns );
    775 		syslog_unknowns = NULL;
    776 		if ( rc )
    777 			goto destroy;
    778 	}
    779 
    780 	if ( check & CHECK_LOGLEVEL ) {
    781 		rc = 0;
    782 		goto destroy;
    783 	}
    784 
    785 	if ( check & CHECK_CONFIG ) {
    786 		fprintf( stderr, "config check succeeded\n" );
    787 
    788 		check &= ~CHECK_CONFIG;
    789 		if ( check == CHECK_NONE ) {
    790 			rc = 0;
    791 			goto destroy;
    792 		}
    793 	}
    794 
    795 	if ( glue_sub_attach( ) != 0 ) {
    796 		Debug( LDAP_DEBUG_ANY,
    797 		    "subordinate config error\n",
    798 		    0, 0, 0 );
    799 
    800 		goto destroy;
    801 	}
    802 
    803 	if ( slap_schema_check( ) != 0 ) {
    804 		Debug( LDAP_DEBUG_ANY,
    805 		    "schema prep error\n",
    806 		    0, 0, 0 );
    807 
    808 		goto destroy;
    809 	}
    810 
    811 #ifdef HAVE_TLS
    812 	rc = ldap_pvt_tls_init();
    813 	if( rc != 0) {
    814 		Debug( LDAP_DEBUG_ANY,
    815 		    "main: TLS init failed: %d\n",
    816 		    0, 0, 0 );
    817 		rc = 1;
    818 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
    819 		goto destroy;
    820 	}
    821 
    822 	{
    823 		int opt = 1;
    824 
    825 		/* Force new ctx to be created */
    826 		rc = ldap_pvt_tls_set_option( slap_tls_ld, LDAP_OPT_X_TLS_NEWCTX, &opt );
    827 		if( rc == 0 ) {
    828 			/* The ctx's refcount is bumped up here */
    829 			ldap_pvt_tls_get_option( slap_tls_ld, LDAP_OPT_X_TLS_CTX, &slap_tls_ctx );
    830 			load_extop( &slap_EXOP_START_TLS, 0, starttls_extop );
    831 		} else if ( rc != LDAP_NOT_SUPPORTED ) {
    832 			Debug( LDAP_DEBUG_ANY,
    833 			    "main: TLS init def ctx failed: %d\n",
    834 			    rc, 0, 0 );
    835 			rc = 1;
    836 			SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
    837 			goto destroy;
    838 		}
    839 	}
    840 #endif
    841 
    842 #ifdef HAVE_CYRUS_SASL
    843 	if( sasl_host == NULL ) {
    844 		sasl_host = ch_strdup( global_host );
    845 	}
    846 #endif
    847 
    848 	(void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
    849 	(void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
    850 
    851 #ifdef SIGPIPE
    852 	(void) SIGNAL( SIGPIPE, SIG_IGN );
    853 #endif
    854 #ifdef SIGHUP
    855 	(void) SIGNAL( SIGHUP, slap_sig_shutdown );
    856 #endif
    857 	(void) SIGNAL( SIGINT, slap_sig_shutdown );
    858 	(void) SIGNAL( SIGTERM, slap_sig_shutdown );
    859 #ifdef SIGTRAP
    860 	(void) SIGNAL( SIGTRAP, slap_sig_shutdown );
    861 #endif
    862 #ifdef LDAP_SIGCHLD
    863 	(void) SIGNAL( LDAP_SIGCHLD, wait4child );
    864 #endif
    865 #ifdef SIGBREAK
    866 	/* SIGBREAK is generated when Ctrl-Break is pressed. */
    867 	(void) SIGNAL( SIGBREAK, slap_sig_shutdown );
    868 #endif
    869 
    870 #ifndef HAVE_WINSOCK
    871 	lutil_detach( no_detach, 0 );
    872 #endif /* HAVE_WINSOCK */
    873 
    874 #ifdef CSRIMALLOC
    875 	mal_leaktrace(1);
    876 #endif
    877 
    878 	if ( slapd_pid_file != NULL ) {
    879 		FILE *fp = fopen( slapd_pid_file, "w" );
    880 
    881 		if ( fp == NULL ) {
    882 			int save_errno = errno;
    883 
    884 			Debug( LDAP_DEBUG_ANY, "unable to open pid file "
    885 				"\"%s\": %d (%s)\n",
    886 				slapd_pid_file,
    887 				save_errno, strerror( save_errno ) );
    888 
    889 			free( slapd_pid_file );
    890 			slapd_pid_file = NULL;
    891 
    892 			rc = 1;
    893 			goto destroy;
    894 		}
    895 		fprintf( fp, "%d\n", (int) getpid() );
    896 		fclose( fp );
    897 		slapd_pid_file_unlink = 1;
    898 	}
    899 
    900 	if ( slapd_args_file != NULL ) {
    901 		FILE *fp = fopen( slapd_args_file, "w" );
    902 
    903 		if ( fp == NULL ) {
    904 			int save_errno = errno;
    905 
    906 			Debug( LDAP_DEBUG_ANY, "unable to open args file "
    907 				"\"%s\": %d (%s)\n",
    908 				slapd_args_file,
    909 				save_errno, strerror( save_errno ) );
    910 
    911 			free( slapd_args_file );
    912 			slapd_args_file = NULL;
    913 
    914 			rc = 1;
    915 			goto destroy;
    916 		}
    917 
    918 		for ( i = 0; i < g_argc; i++ ) {
    919 			fprintf( fp, "%s ", g_argv[i] );
    920 		}
    921 		fprintf( fp, "\n" );
    922 		fclose( fp );
    923 		slapd_args_file_unlink = 1;
    924 	}
    925 
    926 	/*
    927 	 * FIXME: moved here from slapd_daemon_task()
    928 	 * because back-monitor db_open() needs it
    929 	 */
    930 	time( &starttime );
    931 
    932 	if ( slap_startup( NULL ) != 0 ) {
    933 		rc = 1;
    934 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
    935 		goto shutdown;
    936 	}
    937 
    938 	Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
    939 
    940 #ifdef HAVE_NT_EVENT_LOG
    941 	if (is_NT_Service)
    942 	lutil_LogStartedEvent( serverName, slap_debug, configfile ?
    943 		configfile : SLAPD_DEFAULT_CONFIGFILE , urls );
    944 #endif
    945 
    946 	rc = slapd_daemon();
    947 
    948 #ifdef HAVE_NT_SERVICE_MANAGER
    949 	/* Throw away the event that we used during the startup process. */
    950 	if ( is_NT_Service )
    951 		ldap_pvt_thread_cond_destroy( &started_event );
    952 #endif
    953 
    954 shutdown:
    955 	/* remember an error during shutdown */
    956 	rc |= slap_shutdown( NULL );
    957 
    958 destroy:
    959 	if ( check & CHECK_LOGLEVEL ) {
    960 		(void)loglevel_print( stdout );
    961 	}
    962 	/* remember an error during destroy */
    963 	rc |= slap_destroy();
    964 
    965 	while ( !LDAP_STAILQ_EMPTY( &slap_sync_cookie )) {
    966 		scp = LDAP_STAILQ_FIRST( &slap_sync_cookie );
    967 		LDAP_STAILQ_REMOVE_HEAD( &slap_sync_cookie, sc_next );
    968 		ch_free( scp );
    969 	}
    970 
    971 #ifdef SLAPD_MODULES
    972 	module_kill();
    973 #endif
    974 
    975 	extops_kill();
    976 
    977 	supported_feature_destroy();
    978 	entry_info_destroy();
    979 
    980 stop:
    981 #ifdef HAVE_NT_EVENT_LOG
    982 	if (is_NT_Service)
    983 	lutil_LogStoppedEvent( serverName );
    984 #endif
    985 
    986 	Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
    987 
    988 
    989 #ifdef HAVE_NT_SERVICE_MANAGER
    990 	lutil_ReportShutdownComplete();
    991 #endif
    992 
    993 #ifdef LOG_DEBUG
    994     closelog();
    995 #endif
    996 	slapd_daemon_destroy();
    997 
    998 	controls_destroy();
    999 
   1000 	filter_destroy();
   1001 
   1002 	schema_destroy();
   1003 
   1004 	lutil_passwd_destroy();
   1005 
   1006 #ifdef HAVE_TLS
   1007 	if ( slap_tls_ld ) {
   1008 		ldap_pvt_tls_ctx_free( slap_tls_ctx );
   1009 		ldap_unbind_ext( slap_tls_ld, NULL, NULL );
   1010 	}
   1011 	ldap_pvt_tls_destroy();
   1012 #endif
   1013 
   1014 	slap_sasl_regexp_destroy();
   1015 
   1016 	if ( slapd_pid_file_unlink ) {
   1017 		unlink( slapd_pid_file );
   1018 	}
   1019 	if ( slapd_args_file_unlink ) {
   1020 		unlink( slapd_args_file );
   1021 	}
   1022 
   1023 	config_destroy();
   1024 
   1025 	if ( configfile )
   1026 		ch_free( configfile );
   1027 	if ( configdir )
   1028 		ch_free( configdir );
   1029 	if ( urls )
   1030 		ch_free( urls );
   1031 
   1032 	/* kludge, get symbols referenced */
   1033 	tavl_free( NULL, NULL );
   1034 
   1035 #ifdef CSRIMALLOC
   1036 	mal_dumpleaktrace( leakfile );
   1037 #endif
   1038 
   1039 	MAIN_RETURN(rc);
   1040 }
   1041 
   1042 
   1043 #ifdef LDAP_SIGCHLD
   1044 
   1045 /*
   1046  *  Catch and discard terminated child processes, to avoid zombies.
   1047  */
   1048 
   1049 static RETSIGTYPE
   1050 wait4child( int sig )
   1051 {
   1052     int save_errno = errno;
   1053 
   1054 #ifdef WNOHANG
   1055     errno = 0;
   1056 #ifdef HAVE_WAITPID
   1057     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR )
   1058 	;	/* NULL */
   1059 #else
   1060     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR )
   1061 	;	/* NULL */
   1062 #endif
   1063 #else
   1064     (void) wait( NULL );
   1065 #endif
   1066     (void) SIGNAL_REINSTALL( sig, wait4child );
   1067     errno = save_errno;
   1068 }
   1069 
   1070 #endif /* LDAP_SIGCHLD */
   1071 
   1072