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      1 /*	$NetBSD: main.c,v 1.4 2025/09/05 21:16:25 christos Exp $	*/
      2 
      3 /* $OpenLDAP$ */
      4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      5  *
      6  * Copyright 1998-2024 The OpenLDAP Foundation.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted only as authorized by the OpenLDAP
     11  * Public License.
     12  *
     13  * A copy of this license is available in the file LICENSE in the
     14  * top-level directory of the distribution or, alternatively, at
     15  * <http://www.OpenLDAP.org/license.html>.
     16  */
     17 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
     18  * All rights reserved.
     19  *
     20  * Redistribution and use in source and binary forms are permitted
     21  * provided that this notice is preserved and that due credit is given
     22  * to the University of Michigan at Ann Arbor. The name of the University
     23  * may not be used to endorse or promote products derived from this
     24  * software without specific prior written permission. This software
     25  * is provided ``as is'' without express or implied warranty.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __RCSID("$NetBSD: main.c,v 1.4 2025/09/05 21:16:25 christos Exp $");
     30 
     31 #include "portable.h"
     32 
     33 #include <stdio.h>
     34 
     35 #include <ac/ctype.h>
     36 #include <ac/socket.h>
     37 #include <ac/string.h>
     38 #include <ac/time.h>
     39 #include <ac/unistd.h>
     40 #include <ac/wait.h>
     41 #include <ac/errno.h>
     42 
     43 #include "slap.h"
     44 #include "lutil.h"
     45 #include "ldif.h"
     46 
     47 #ifdef LDAP_SLAPI
     48 #include "slapi/slapi.h"
     49 #endif
     50 
     51 #ifdef LDAP_SIGCHLD
     52 static RETSIGTYPE wait4child( int sig );
     53 #endif
     54 
     55 #ifdef HAVE_NT_SERVICE_MANAGER
     56 #define MAIN_RETURN(x) return
     57 static struct sockaddr_in	bind_addr;
     58 
     59 #define SERVICE_EXIT( e, n )	do { \
     60 	if ( is_NT_Service ) { \
     61 		lutil_ServiceStatus.dwWin32ExitCode				= (e); \
     62 		lutil_ServiceStatus.dwServiceSpecificExitCode	= (n); \
     63 	} \
     64 } while ( 0 )
     65 
     66 #else
     67 #define SERVICE_EXIT( e, n )
     68 #define MAIN_RETURN(x) return(x)
     69 #endif
     70 
     71 typedef int (MainFunc) LDAP_P(( int argc, char *argv[] ));
     72 extern MainFunc slapadd, slapcat, slapdn, slapindex, slappasswd,
     73 	slaptest, slapauth, slapacl, slapschema, slapmodify;
     74 
     75 static struct {
     76 	char *name;
     77 	MainFunc *func;
     78 } tools[] = {
     79 	{"slapadd", slapadd},
     80 	{"slapcat", slapcat},
     81 	{"slapdn", slapdn},
     82 	{"slapindex", slapindex},
     83 	{"slapmodify", slapmodify},
     84 	{"slappasswd", slappasswd},
     85 	{"slapschema", slapschema},
     86 	{"slaptest", slaptest},
     87 	{"slapauth", slapauth},
     88 	{"slapacl", slapacl},
     89 	/* NOTE: new tools must be added in chronological order,
     90 	 * not in alphabetical order, because for backwards
     91 	 * compatibility name[4] is used to identify the
     92 	 * tools; so name[4]=='a' must refer to "slapadd" and
     93 	 * not to "slapauth".  Alphabetical order can be used
     94 	 * for tools whose name[4] is not used yet */
     95 	{NULL, NULL}
     96 };
     97 
     98 /*
     99  * when more than one slapd is running on one machine, each one might have
    100  * it's own LOCAL for syslogging and must have its own pid/args files
    101  */
    102 
    103 #ifndef HAVE_MKVERSION
    104 const char Versionstr[] =
    105 	OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
    106 #endif
    107 
    108 extern OverlayInit slap_oinfo[];
    109 extern BackendInfo slap_binfo[];
    110 
    111 #define	CHECK_NONE	0x00
    112 #define	CHECK_CONFIG	0x01
    113 #define	CHECK_LOGLEVEL	0x02
    114 static int check = CHECK_NONE;
    115 static int version = 0;
    116 
    117 void *slap_tls_ctx;
    118 LDAP *slap_tls_ld;
    119 
    120 static int
    121 slapd_opt_slp( const char *val, void *arg )
    122 {
    123 #ifdef HAVE_SLP
    124 	/* NULL is default */
    125 	if ( val == NULL || *val == '(' || strcasecmp( val, "on" ) == 0 ) {
    126 		slapd_register_slp = 1;
    127 		slapd_slp_attrs = (val != NULL && *val == '(') ? val : NULL;
    128 
    129 	} else if ( strcasecmp( val, "off" ) == 0 ) {
    130 		slapd_register_slp = 0;
    131 
    132 	/* NOTE: add support for URL specification? */
    133 
    134 	} else {
    135 		fprintf(stderr, "unrecognized value \"%s\" for SLP option\n", val );
    136 		return -1;
    137 	}
    138 
    139 	return 0;
    140 
    141 #else
    142 	fputs( "slapd: SLP support is not available\n", stderr );
    143 	return 0;
    144 #endif
    145 }
    146 
    147 /*
    148  * Option helper structure:
    149  *
    150  * oh_nam	is left-hand part of <option>[=<value>]
    151  * oh_fnc	is handler function
    152  * oh_arg	is an optional arg to oh_fnc
    153  * oh_usage	is the one-line usage string related to the option,
    154  *		which is assumed to start with <option>[=<value>]
    155  *
    156  * please leave valid options in the structure, and optionally #ifdef
    157  * their processing inside the helper, so that reasonable and helpful
    158  * error messages can be generated if a disabled option is requested.
    159  */
    160 struct option_helper {
    161 	struct berval	oh_name;
    162 	int		(*oh_fnc)(const char *val, void *arg);
    163 	void		*oh_arg;
    164 	const char	*oh_usage;
    165 } option_helpers[] = {
    166 	{ BER_BVC("slp"),	slapd_opt_slp,	NULL, "slp[={on|off|(attrs)}] enable/disable SLP using (attrs)" },
    167 	{ BER_BVNULL, 0, NULL, NULL }
    168 };
    169 
    170 static void
    171 usage( char *name )
    172 {
    173 	fprintf( stderr,
    174 		"usage: %s options\n", name );
    175 	fprintf( stderr,
    176 		"\t-4\t\tIPv4 only\n"
    177 #ifdef LDAP_PF_INET6
    178 		"\t-6\t\tIPv6 only\n"
    179 #endif
    180 		"\t-T {acl|add|auth|cat|dn|index|modify|passwd|test}\n"
    181 		"\t\t\tRun in Tool mode\n"
    182 		"\t-c cookie\tSync cookie of consumer\n"
    183 		"\t-d level\tDebug level" "\n"
    184 		"\t-f filename\tConfiguration file\n"
    185 		"\t-F dir\tConfiguration directory\n"
    186 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    187 		"\t-g group\tGroup (id or name) to run as\n"
    188 #endif
    189 		"\t-h URLs\t\tList of URLs to serve\n"
    190 #ifdef SLAP_DEFAULT_SYSLOG_USER
    191 		"\t-l facility\tSyslog facility (default: LOCAL4)\n"
    192 #endif
    193 		"\t-n serverName\tService name\n"
    194 		"\t-o <opt>[=val] generic means to specify options" );
    195 	if ( !BER_BVISNULL( &option_helpers[0].oh_name ) ) {
    196 		int	i;
    197 
    198 		fprintf( stderr, "; supported options:\n" );
    199 		for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name ); i++) {
    200 			fprintf( stderr, "\t\t%s\n", option_helpers[i].oh_usage );
    201 		}
    202 	} else {
    203 		fprintf( stderr, "\n" );
    204 	}
    205 	fprintf( stderr,
    206 #ifdef HAVE_CHROOT
    207 		"\t-r directory\tSandbox directory to chroot to\n"
    208 #endif
    209 		"\t-s level\tSyslog level\n"
    210 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    211 		"\t-u user\t\tUser (id or name) to run as\n"
    212 #endif
    213 		"\t-V\t\tprint version info (-VV exit afterwards, -VVV print\n"
    214 		"\t\t\tinfo about static overlays and backends)\n"
    215     );
    216 }
    217 
    218 #ifdef HAVE_NT_SERVICE_MANAGER
    219 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
    220 #else
    221 int main( int argc, char **argv )
    222 #endif
    223 {
    224 	int		i, no_detach = 0;
    225 	int		rc = 1;
    226 	char *urls = NULL;
    227 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    228 	char *username = NULL;
    229 	char *groupname = NULL;
    230 #endif
    231 #if defined(HAVE_CHROOT)
    232 	char *sandbox = NULL;
    233 #endif
    234 #ifdef SLAP_DEFAULT_SYSLOG_USER
    235 	int syslogUser = SLAP_DEFAULT_SYSLOG_USER;
    236 #endif
    237 
    238 #ifndef HAVE_WINSOCK
    239 	int pid, waitfds[2];
    240 #endif
    241 	int g_argc = argc;
    242 	char **g_argv = argv;
    243 
    244 	char *configfile = NULL;
    245 	char *configdir = NULL;
    246 	int serverMode = SLAP_SERVER_MODE;
    247 
    248 	struct sync_cookie *scp = NULL;
    249 	struct sync_cookie *scp_entry = NULL;
    250 
    251 	char *serverNamePrefix = "";
    252 	size_t	l;
    253 
    254 	int slapd_pid_file_unlink = 0, slapd_args_file_unlink = 0;
    255 	int firstopt = 1;
    256 
    257 #ifdef CSRIMALLOC
    258 	FILE *leakfile;
    259 	if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
    260 		leakfile = stderr;
    261 	}
    262 #endif
    263 
    264 	slap_sl_mem_init();
    265 
    266 	(void) ldap_pvt_thread_initialize();
    267 	ldap_pvt_thread_mutex_init( &logfile_mutex );
    268 
    269 #ifdef HAVE_TLS
    270 	rc = ldap_create( &slap_tls_ld );
    271 	if ( rc ) {
    272 		MAIN_RETURN( rc );
    273 	}
    274 	/* Library defaults to full certificate checking. This is correct when
    275 	 * a client is verifying a server because all servers should have a
    276 	 * valid cert. But few clients have valid certs, so we want our default
    277 	 * to be no checking. The config file can override this as usual.
    278 	 */
    279 	rc = LDAP_OPT_X_TLS_NEVER;
    280 	(void) ldap_pvt_tls_set_option( slap_tls_ld, LDAP_OPT_X_TLS_REQUIRE_CERT, &rc );
    281 #endif
    282 
    283 	global_host = ldap_pvt_get_fqdn( NULL );
    284 	ber_str2bv( global_host, 0, 0, &global_host_bv );
    285 
    286 	serverName = lutil_progname( "slapd", argc, argv );
    287 
    288 	if ( strcmp( serverName, "slapd" ) ) {
    289 #ifdef DEBUG_CLOSE
    290 		extern void slapd_debug_close();
    291 		slapd_debug_close();
    292 #endif
    293 		for (i=0; tools[i].name; i++) {
    294 			if ( !strcmp( serverName, tools[i].name ) ) {
    295 				rc = tools[i].func(argc, argv);
    296 				MAIN_RETURN(rc);
    297 			}
    298 		}
    299 	}
    300 
    301 #ifdef HAVE_NT_SERVICE_MANAGER
    302 	{
    303 		int *ip;
    304 		char *newConfigFile;
    305 		char *newConfigDir;
    306 		char *newUrls;
    307 		char *regService = NULL;
    308 
    309 		if ( is_NT_Service ) {
    310 			lutil_CommenceStartupProcessing( serverName, slap_sig_shutdown );
    311 			if ( strcmp(serverName, SERVICE_NAME) )
    312 			    regService = serverName;
    313 		}
    314 
    315 		ip = (int*)lutil_getRegParam( regService, "DebugLevel" );
    316 		if ( ip != NULL ) {
    317 			slap_debug = *ip;
    318 			Debug( LDAP_DEBUG_ANY,
    319 				"new debug level from registry is: %d\n", slap_debug );
    320 		}
    321 
    322 		newUrls = (char *) lutil_getRegParam(regService, "Urls");
    323 		if (newUrls) {
    324 		    urls = ch_strdup(newUrls);
    325 		    Debug(LDAP_DEBUG_ANY, "new urls from registry: %s\n",
    326 				urls );
    327 		}
    328 
    329 		newConfigFile = (char*)lutil_getRegParam( regService, "ConfigFile" );
    330 		if ( newConfigFile != NULL ) {
    331 			configfile = ch_strdup(newConfigFile);
    332 			Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile );
    333 		}
    334 
    335 		newConfigDir = (char*)lutil_getRegParam( regService, "ConfigDir" );
    336 		if ( newConfigDir != NULL ) {
    337 			configdir = ch_strdup(newConfigDir);
    338 			Debug ( LDAP_DEBUG_ANY, "new config dir from registry is: %s\n", configdir );
    339 		}
    340 	}
    341 #endif
    342 
    343 	while ( (i = getopt( argc, argv,
    344 			     "c:d:f:F:h:n:o:s:tT:V"
    345 #ifdef LDAP_PF_INET6
    346 				"46"
    347 #endif
    348 #ifdef HAVE_CHROOT
    349 				"r:"
    350 #endif
    351 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    352 				"S:"
    353 #ifdef LOG_LOCAL4
    354 				"l:"
    355 #endif
    356 #endif
    357 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    358 				"u:g:"
    359 #endif
    360 			     )) != EOF ) {
    361 		switch ( i ) {
    362 		case '4':
    363 			slap_inet4or6 = AF_INET;
    364 			break;
    365 #ifdef LDAP_PF_INET6
    366 		case '6':
    367 			slap_inet4or6 = AF_INET6;
    368 			break;
    369 #endif
    370 
    371 		case 'h':	/* listen URLs */
    372 			urls = optarg;
    373 			break;
    374 
    375 		case 'c':	/* provide sync cookie, override if exist in consumer */
    376 			scp = (struct sync_cookie *) ch_calloc( 1,
    377 										sizeof( struct sync_cookie ));
    378 			ber_str2bv( optarg, 0, 1, &scp->octet_str );
    379 
    380 			/* This only parses out the rid at this point */
    381 			slap_parse_sync_cookie( scp, NULL );
    382 
    383 			if ( scp->rid == -1 ) {
    384 				Debug( LDAP_DEBUG_ANY,
    385 						"main: invalid cookie \"%s\"\n",
    386 						optarg );
    387 				slap_sync_cookie_free( scp, 1 );
    388 				goto destroy;
    389 			}
    390 
    391 			LDAP_STAILQ_FOREACH( scp_entry, &slap_sync_cookie, sc_next ) {
    392 				if ( scp->rid == scp_entry->rid ) {
    393 					Debug( LDAP_DEBUG_ANY,
    394 						    "main: duplicated replica id in cookies\n" );
    395 					slap_sync_cookie_free( scp, 1 );
    396 					goto destroy;
    397 				}
    398 			}
    399 			LDAP_STAILQ_INSERT_TAIL( &slap_sync_cookie, scp, sc_next );
    400 			break;
    401 
    402 		case 'd': {	/* set debug level and 'do not detach' flag */
    403 			int	level = 0;
    404 
    405 			if ( strcmp( optarg, "?" ) == 0 ) {
    406 				check |= CHECK_LOGLEVEL;
    407 				break;
    408 			}
    409 
    410 			no_detach = 1;
    411 			if ( slap_parse_debug_level( optarg, &level, 0 ) ) {
    412 				goto destroy;
    413 			}
    414 #ifdef LDAP_DEBUG
    415 			slap_debug |= level;
    416 #else
    417 			if ( level != 0 )
    418 				fputs( "must compile with LDAP_DEBUG for debugging\n",
    419 				       stderr );
    420 #endif
    421 			} break;
    422 
    423 		case 'f':	/* read config file */
    424 			configfile = optarg;
    425 			break;
    426 
    427 		case 'F':	/* use config dir */
    428 			configdir = optarg;
    429 			break;
    430 
    431 		case 'o': {
    432 			char		*val = strchr( optarg, '=' );
    433 			struct berval	opt;
    434 
    435 			opt.bv_val = optarg;
    436 
    437 			if ( val ) {
    438 				opt.bv_len = ( val - optarg );
    439 				val++;
    440 
    441 			} else {
    442 				opt.bv_len = strlen( optarg );
    443 			}
    444 
    445 			for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name ); i++ ) {
    446 				if ( ber_bvstrcasecmp( &option_helpers[i].oh_name, &opt ) == 0 ) {
    447 					assert( option_helpers[i].oh_fnc != NULL );
    448 					if ( (*option_helpers[i].oh_fnc)( val, option_helpers[i].oh_arg ) == -1 ) {
    449 						/* we assume the option parsing helper
    450 						 * issues appropriate and self-explanatory
    451 						 * error messages... */
    452 						goto stop;
    453 					}
    454 					break;
    455 				}
    456 			}
    457 
    458 			if ( BER_BVISNULL( &option_helpers[i].oh_name ) ) {
    459 				goto unhandled_option;
    460 			}
    461 			break;
    462 		}
    463 
    464 		case 's':	/* set syslog level */
    465 			if ( strcmp( optarg, "?" ) == 0 ) {
    466 				check |= CHECK_LOGLEVEL;
    467 				break;
    468 			}
    469 
    470 			if ( slap_parse_debug_level( optarg, &ldap_syslog, 1 ) ) {
    471 				goto destroy;
    472 			}
    473 			break;
    474 
    475 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    476 		case 'S':
    477 			if ( slap_parse_syslog_level( optarg, &ldap_syslog_level ) ) {
    478 				goto destroy;
    479 			}
    480 			break;
    481 
    482 #ifdef LOG_LOCAL4
    483 		case 'l':	/* set syslog local user */
    484 			if ( slap_parse_syslog_user( optarg, &syslogUser ) ) {
    485 				goto destroy;
    486 			}
    487 			break;
    488 #endif
    489 #endif /* LDAP_DEBUG && LDAP_SYSLOG */
    490 
    491 #ifdef HAVE_CHROOT
    492 		case 'r':
    493 			sandbox = optarg;
    494 			break;
    495 #endif
    496 
    497 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    498 		case 'u':	/* user name */
    499 			username = optarg;
    500 			break;
    501 
    502 		case 'g':	/* group name */
    503 			groupname = optarg;
    504 			break;
    505 #endif /* SETUID && GETUID */
    506 
    507 		case 'n':  /* NT service name */
    508 			serverName = optarg;
    509 			break;
    510 
    511 		case 't':
    512 			/* deprecated; use slaptest instead */
    513 			fprintf( stderr, "option -t deprecated; "
    514 				"use slaptest command instead\n" );
    515 			check |= CHECK_CONFIG;
    516 			break;
    517 
    518 		case 'V':
    519 			version++;
    520 			break;
    521 
    522 		case 'T':
    523 			if ( firstopt == 0 ) {
    524 				fprintf( stderr, "warning: \"-T %s\" "
    525 					"should be the first option.\n",
    526 					optarg );
    527 			}
    528 
    529 #ifdef DEBUG_CLOSE
    530 			extern void slapd_debug_close();
    531 			slapd_debug_close();
    532 #endif
    533 			/* try full option string first */
    534 			for ( i = 0; tools[i].name; i++ ) {
    535 				if ( strcmp( optarg, &tools[i].name[4] ) == 0 ) {
    536 					rc = tools[i].func( argc, argv );
    537 					MAIN_RETURN( rc );
    538 				}
    539 			}
    540 
    541 			/* try bits of option string (backward compatibility for single char) */
    542 			l = strlen( optarg );
    543 			for ( i = 0; tools[i].name; i++ ) {
    544 				if ( strncmp( optarg, &tools[i].name[4], l ) == 0 ) {
    545 					rc = tools[i].func( argc, argv );
    546 					MAIN_RETURN( rc );
    547 				}
    548 			}
    549 
    550 			/* issue error */
    551 			serverName = optarg;
    552 			serverNamePrefix = "slap";
    553 			fprintf( stderr, "program name \"%s%s\" unrecognized; "
    554 					"aborting...\n", serverNamePrefix, serverName );
    555 			/* FALLTHRU */
    556 		default:
    557 unhandled_option:;
    558 			usage( argv[0] );
    559 			rc = 1;
    560 			SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
    561 			goto stop;
    562 		}
    563 
    564 		if ( firstopt ) {
    565 			firstopt = 0;
    566 		}
    567 	}
    568 
    569 	if ( optind != argc )
    570 		goto unhandled_option;
    571 
    572 	ber_set_option(NULL, LBER_OPT_LOG_PRINT_FN, slap_debug_print);
    573 	ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
    574 	ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
    575 	ldif_debug = slap_debug;
    576 	slap_debug_orig = slap_debug;
    577 
    578 	if ( version ) {
    579 		fprintf( stderr, "%s\n", Versionstr );
    580 		if ( version > 2 ) {
    581 			if ( slap_oinfo[0].ov_type ) {
    582 				fprintf( stderr, "Included static overlays:\n");
    583 				for ( i= 0 ; slap_oinfo[i].ov_type; i++ ) {
    584 					fprintf( stderr, "    %s\n", slap_oinfo[i].ov_type );
    585 				}
    586 			}
    587 			if ( slap_binfo[0].bi_type ) {
    588 				fprintf( stderr, "Included static backends:\n");
    589 				for ( i= 0 ; slap_binfo[i].bi_type; i++ ) {
    590 					fprintf( stderr, "    %s\n", slap_binfo[i].bi_type );
    591 				}
    592 			}
    593 		}
    594 
    595 		if ( version > 1 ) goto stop;
    596 	}
    597 
    598 #if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
    599 	{
    600 		char *logName;
    601 #ifdef HAVE_EBCDIC
    602 		logName = ch_strdup( serverName );
    603 		__atoe( logName );
    604 #else
    605 		logName = serverName;
    606 #endif
    607 
    608 #ifdef LOG_LOCAL4
    609 		openlog( logName, OPENLOG_OPTIONS, syslogUser );
    610 #elif defined LOG_DEBUG
    611 		openlog( logName, OPENLOG_OPTIONS );
    612 #endif
    613 #ifdef HAVE_EBCDIC
    614 		free( logName );
    615 #endif
    616 	}
    617 #endif /* LDAP_DEBUG && LDAP_SYSLOG */
    618 
    619 	Debug( LDAP_DEBUG_ANY, "%s", Versionstr );
    620 
    621 	if( check == CHECK_NONE && slapd_daemon_init( urls ) != 0 ) {
    622 		rc = 1;
    623 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
    624 		goto stop;
    625 	}
    626 
    627 #if defined(HAVE_CHROOT)
    628 	if ( sandbox ) {
    629 		if ( chdir( sandbox ) ) {
    630 			perror("chdir");
    631 			rc = 1;
    632 			goto stop;
    633 		}
    634 		if ( chroot( sandbox ) ) {
    635 			perror("chroot");
    636 			rc = 1;
    637 			goto stop;
    638 		}
    639 		if ( chdir( "/" ) ) {
    640 			perror("chdir");
    641 			rc = 1;
    642 			goto stop;
    643 		}
    644 	}
    645 #endif
    646 
    647 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
    648 	if ( username != NULL || groupname != NULL ) {
    649 		slap_init_user( username, groupname );
    650 	}
    651 #endif
    652 
    653 	extops_init();
    654 	lutil_passwd_init();
    655 
    656 	rc = slap_init( serverMode, serverName );
    657 	if ( rc ) {
    658 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
    659 		goto destroy;
    660 	}
    661 
    662 	if ( read_config( configfile, configdir ) != 0 ) {
    663 		rc = 1;
    664 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
    665 
    666 		if ( check & CHECK_CONFIG ) {
    667 			fprintf( stderr, "config check failed\n" );
    668 		}
    669 
    670 		goto destroy;
    671 	}
    672 
    673 	rc = slap_parse_debug_unknowns();
    674 	if ( rc )
    675 		goto destroy;
    676 
    677 	if ( check & CHECK_LOGLEVEL ) {
    678 		rc = 0;
    679 		goto destroy;
    680 	}
    681 
    682 	if ( check & CHECK_CONFIG ) {
    683 		fprintf( stderr, "config check succeeded\n" );
    684 
    685 		check &= ~CHECK_CONFIG;
    686 		if ( check == CHECK_NONE ) {
    687 			rc = 0;
    688 			goto destroy;
    689 		}
    690 	}
    691 
    692 	if ( glue_sub_attach( 0 ) != 0 ) {
    693 		Debug( LDAP_DEBUG_ANY,
    694 		    "subordinate config error\n" );
    695 
    696 		goto destroy;
    697 	}
    698 
    699 	if ( slap_schema_check( ) != 0 ) {
    700 		Debug( LDAP_DEBUG_ANY,
    701 		    "schema prep error\n" );
    702 
    703 		goto destroy;
    704 	}
    705 
    706 #ifdef HAVE_TLS
    707 	rc = ldap_pvt_tls_init( 1 );
    708 	if( rc != 0) {
    709 		Debug( LDAP_DEBUG_ANY,
    710 		    "main: TLS init failed: %d\n",
    711 		    rc );
    712 		rc = 1;
    713 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
    714 		goto destroy;
    715 	}
    716 
    717 	{
    718 		int opt = 1;
    719 
    720 		/* Force new ctx to be created */
    721 		rc = ldap_pvt_tls_set_option( slap_tls_ld, LDAP_OPT_X_TLS_NEWCTX, &opt );
    722 		if( rc == 0 ) {
    723 			/* The ctx's refcount is bumped up here */
    724 			ldap_pvt_tls_get_option( slap_tls_ld, LDAP_OPT_X_TLS_CTX, &slap_tls_ctx );
    725 			load_extop( &slap_EXOP_START_TLS, 0, starttls_extop );
    726 		} else if ( rc != LDAP_NOT_SUPPORTED ) {
    727 			char *errmsg = NULL;
    728 			ldap_get_option( slap_tls_ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, &errmsg );
    729 			Debug( LDAP_DEBUG_ANY,
    730 			    "main: TLS init def ctx failed: %d %s\n",
    731 			    rc, errmsg ? errmsg : "" );
    732 			ldap_memfree( errmsg );
    733 			rc = 1;
    734 			SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
    735 			goto destroy;
    736 		}
    737 	}
    738 #endif
    739 
    740 #ifdef HAVE_CYRUS_SASL
    741 	if( sasl_host == NULL ) {
    742 		sasl_host = ch_strdup( global_host );
    743 	}
    744 #endif
    745 
    746 	(void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
    747 	(void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
    748 
    749 #ifdef SIGPIPE
    750 	(void) SIGNAL( SIGPIPE, SIG_IGN );
    751 #endif
    752 #ifdef SIGHUP
    753 	(void) SIGNAL( SIGHUP, slap_sig_shutdown );
    754 #endif
    755 	(void) SIGNAL( SIGINT, slap_sig_shutdown );
    756 	(void) SIGNAL( SIGTERM, slap_sig_shutdown );
    757 #ifdef SIGTRAP
    758 	(void) SIGNAL( SIGTRAP, slap_sig_shutdown );
    759 #endif
    760 #ifdef LDAP_SIGCHLD
    761 	(void) SIGNAL( LDAP_SIGCHLD, wait4child );
    762 #endif
    763 #ifdef SIGBREAK
    764 	/* SIGBREAK is generated when Ctrl-Break is pressed. */
    765 	(void) SIGNAL( SIGBREAK, slap_sig_shutdown );
    766 #endif
    767 
    768 #ifndef HAVE_WINSOCK
    769 	if ( !no_detach ) {
    770 		if ( lutil_pair( waitfds ) < 0 ) {
    771 			Debug( LDAP_DEBUG_ANY,
    772 				"main: lutil_pair failed: %d\n",
    773 				0 );
    774 			rc = 1;
    775 			goto destroy;
    776 		}
    777 		pid = lutil_detach( no_detach, 0 );
    778 		if ( pid ) {
    779 			char buf[4];
    780 			rc = EXIT_SUCCESS;
    781 			close( waitfds[1] );
    782 			if ( read( waitfds[0], buf, 1 ) != 1 )
    783 				rc = EXIT_FAILURE;
    784 			_exit( rc );
    785 		} else {
    786 			close( waitfds[0] );
    787 		}
    788 	}
    789 #endif /* HAVE_WINSOCK */
    790 
    791 #ifdef CSRIMALLOC
    792 	mal_leaktrace(1);
    793 #endif
    794 
    795 	if ( slapd_pid_file != NULL ) {
    796 		FILE *fp = fopen( slapd_pid_file, "w" );
    797 
    798 		if ( fp == NULL ) {
    799 			char ebuf[128];
    800 			int save_errno = errno;
    801 
    802 			Debug( LDAP_DEBUG_ANY, "unable to open pid file "
    803 				"\"%s\": %d (%s)\n",
    804 				slapd_pid_file,
    805 				save_errno, AC_STRERROR_R( save_errno, ebuf, sizeof(ebuf) ) );
    806 
    807 			free( slapd_pid_file );
    808 			slapd_pid_file = NULL;
    809 
    810 			rc = 1;
    811 			goto destroy;
    812 		}
    813 		fprintf( fp, "%d\n", (int) getpid() );
    814 		fclose( fp );
    815 		slapd_pid_file_unlink = 1;
    816 	}
    817 
    818 	if ( slapd_args_file != NULL ) {
    819 		FILE *fp = fopen( slapd_args_file, "w" );
    820 
    821 		if ( fp == NULL ) {
    822 			char ebuf[128];
    823 			int save_errno = errno;
    824 
    825 			Debug( LDAP_DEBUG_ANY, "unable to open args file "
    826 				"\"%s\": %d (%s)\n",
    827 				slapd_args_file,
    828 				save_errno, AC_STRERROR_R( save_errno, ebuf, sizeof(ebuf) ) );
    829 
    830 			free( slapd_args_file );
    831 			slapd_args_file = NULL;
    832 
    833 			rc = 1;
    834 			goto destroy;
    835 		}
    836 
    837 		for ( i = 0; i < g_argc; i++ ) {
    838 			fprintf( fp, "%s ", g_argv[i] );
    839 		}
    840 		fprintf( fp, "\n" );
    841 		fclose( fp );
    842 		slapd_args_file_unlink = 1;
    843 	}
    844 
    845 	/*
    846 	 * FIXME: moved here from slapd_daemon_task()
    847 	 * because back-monitor db_open() needs it
    848 	 */
    849 	time( &starttime );
    850 
    851 	connections_init();
    852 
    853 	if ( slap_startup( NULL ) != 0 ) {
    854 		rc = 1;
    855 		SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
    856 		goto shutdown;
    857 	}
    858 
    859 	Debug( LDAP_DEBUG_ANY, "slapd starting\n" );
    860 
    861 #ifndef HAVE_WINSOCK
    862 	if ( !no_detach ) {
    863 		write( waitfds[1], "1", 1 );
    864 		close( waitfds[1] );
    865 	}
    866 #endif
    867 
    868 #ifdef HAVE_NT_EVENT_LOG
    869 	if (is_NT_Service)
    870 	lutil_LogStartedEvent( serverName, slap_debug, configfile ?
    871 		configfile : SLAPD_DEFAULT_CONFIGFILE , urls );
    872 #endif
    873 
    874 	rc = slapd_daemon();
    875 
    876 #ifdef HAVE_NT_SERVICE_MANAGER
    877 	/* Throw away the event that we used during the startup process. */
    878 	if ( is_NT_Service )
    879 		ldap_pvt_thread_cond_destroy( &started_event );
    880 #endif
    881 
    882 shutdown:
    883 	/* remember an error during shutdown */
    884 	rc |= slap_shutdown( NULL );
    885 
    886 destroy:
    887 	if ( check & CHECK_LOGLEVEL ) {
    888 		(void)loglevel_print( stdout );
    889 	}
    890 	/* remember an error during destroy */
    891 	rc |= slap_destroy();
    892 
    893 	while ( !LDAP_STAILQ_EMPTY( &slap_sync_cookie )) {
    894 		scp = LDAP_STAILQ_FIRST( &slap_sync_cookie );
    895 		LDAP_STAILQ_REMOVE_HEAD( &slap_sync_cookie, sc_next );
    896 		ch_free( scp );
    897 	}
    898 
    899 #ifdef SLAPD_MODULES
    900 	module_kill();
    901 #endif
    902 
    903 	extops_kill();
    904 
    905 	supported_feature_destroy();
    906 	entry_info_destroy();
    907 
    908 stop:
    909 #ifdef HAVE_NT_EVENT_LOG
    910 	if (is_NT_Service)
    911 	lutil_LogStoppedEvent( serverName );
    912 #endif
    913 
    914 	Debug( LDAP_DEBUG_ANY, "slapd stopped.\n" );
    915 
    916 
    917 #ifdef HAVE_NT_SERVICE_MANAGER
    918 	lutil_ReportShutdownComplete();
    919 #endif
    920 
    921 #ifdef LOG_DEBUG
    922     closelog();
    923 #endif
    924 	slapd_daemon_destroy();
    925 
    926 	controls_destroy();
    927 
    928 	filter_destroy();
    929 
    930 	schema_destroy();
    931 
    932 	lutil_passwd_destroy();
    933 
    934 #ifdef HAVE_TLS
    935 	if ( slap_tls_ld ) {
    936 		ldap_pvt_tls_ctx_free( slap_tls_ctx );
    937 		ldap_unbind_ext( slap_tls_ld, NULL, NULL );
    938 	}
    939 	ldap_pvt_tls_destroy();
    940 #endif
    941 
    942 	slap_sasl_regexp_destroy();
    943 
    944 	if ( slapd_pid_file_unlink ) {
    945 		unlink( slapd_pid_file );
    946 	}
    947 	if ( slapd_args_file_unlink ) {
    948 		unlink( slapd_args_file );
    949 	}
    950 
    951 	config_destroy();
    952 
    953 	if ( global_host )
    954 		ch_free( global_host );
    955 
    956 	/* kludge, get symbols referenced */
    957 	ldap_tavl_free( NULL, NULL );
    958 
    959 #ifdef CSRIMALLOC
    960 	mal_dumpleaktrace( leakfile );
    961 #endif
    962 
    963 	ldap_pvt_thread_mutex_destroy( &logfile_mutex );
    964 	MAIN_RETURN(rc);
    965 }
    966 
    967 
    968 #ifdef LDAP_SIGCHLD
    969 
    970 /*
    971  *  Catch and discard terminated child processes, to avoid zombies.
    972  */
    973 
    974 static RETSIGTYPE
    975 wait4child( int sig )
    976 {
    977     int save_errno = errno;
    978 
    979 #ifdef WNOHANG
    980     do
    981         errno = 0;
    982 #ifdef HAVE_WAITPID
    983     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR );
    984 #else
    985     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR );
    986 #endif
    987 #else
    988     (void) wait( NULL );
    989 #endif
    990     (void) SIGNAL_REINSTALL( sig, wait4child );
    991     errno = save_errno;
    992 }
    993 
    994 #endif /* LDAP_SIGCHLD */
    995