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openldap/servers/lloadd/main.c
Quanah Gibson-Mount efaf9a4a17 Happy New Year!
2021-01-11 19:25:53 +00:00

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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2021 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 the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/ctype.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include <ac/wait.h>
#include <ac/errno.h>
#include <event2/event.h>
#include "lload.h"
#include "lutil.h"
#include "ldif.h"
#ifdef LDAP_SIGCHLD
static void wait4child( evutil_socket_t sig, short what, void *arg );
#endif
#ifdef SIGPIPE
static void sigpipe( evutil_socket_t sig, short what, void *arg );
#endif
#ifdef HAVE_NT_SERVICE_MANAGER
#define MAIN_RETURN(x) return
static struct sockaddr_in bind_addr;
#define SERVICE_EXIT( e, n ) \
do { \
if ( is_NT_Service ) { \
lutil_ServiceStatus.dwWin32ExitCode = (e); \
lutil_ServiceStatus.dwServiceSpecificExitCode = (n); \
} \
} while (0)
#else
#define SERVICE_EXIT( e, n )
#define MAIN_RETURN(x) return (x)
#endif
struct signal_handler {
int signal;
event_callback_fn handler;
struct event *event;
} signal_handlers[] = {
{ LDAP_SIGUSR2, lload_sig_shutdown },
#ifdef SIGPIPE
{ SIGPIPE, sigpipe },
#endif
#ifdef SIGHUP
{ SIGHUP, lload_sig_shutdown },
#endif
{ SIGINT, lload_sig_shutdown },
{ SIGTERM, lload_sig_shutdown },
#ifdef SIGTRAP
{ SIGTRAP, lload_sig_shutdown },
#endif
#ifdef LDAP_SIGCHLD
{ LDAP_SIGCHLD, wait4child },
#endif
#ifdef SIGBREAK
/* SIGBREAK is generated when Ctrl-Break is pressed. */
{ SIGBREAK, lload_sig_shutdown },
#endif
{ 0, NULL }
};
/*
* when more than one lloadd is running on one machine, each one might have
* it's own LOCAL for syslogging and must have its own pid/args files
*/
#ifndef HAVE_MKVERSION
const char Versionstr[] = OPENLDAP_PACKAGE
" " OPENLDAP_VERSION " LDAP Load Balancer Server (lloadd)";
#endif
#define CHECK_NONE 0x00
#define CHECK_CONFIG 0x01
#define CHECK_LOGLEVEL 0x02
static int check = CHECK_NONE;
static int version = 0;
static int
slapd_opt_slp( const char *val, void *arg )
{
#ifdef HAVE_SLP
/* NULL is default */
if ( val == NULL || *val == '(' || strcasecmp( val, "on" ) == 0 ) {
slapd_register_slp = 1;
slapd_slp_attrs = ( val != NULL && *val == '(' ) ? val : NULL;
} else if ( strcasecmp( val, "off" ) == 0 ) {
slapd_register_slp = 0;
/* NOTE: add support for URL specification? */
} else {
fprintf( stderr, "unrecognized value \"%s\" for SLP option\n", val );
return -1;
}
return 0;
#else
fputs( "lloadd: SLP support is not available\n", stderr );
return 0;
#endif
}
/*
* Option helper structure:
*
* oh_nam is left-hand part of <option>[=<value>]
* oh_fnc is handler function
* oh_arg is an optional arg to oh_fnc
* oh_usage is the one-line usage string related to the option,
* which is assumed to start with <option>[=<value>]
*
* please leave valid options in the structure, and optionally #ifdef
* their processing inside the helper, so that reasonable and helpful
* error messages can be generated if a disabled option is requested.
*/
struct option_helper {
struct berval oh_name;
int (*oh_fnc)( const char *val, void *arg );
void *oh_arg;
const char *oh_usage;
} option_helpers[] = {
{ BER_BVC("slp"), slapd_opt_slp, NULL,
"slp[={on|off|(attrs)}] enable/disable SLP using (attrs)" },
{ BER_BVNULL, 0, NULL, NULL }
};
#if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
#ifdef LOG_LOCAL4
int
parse_syslog_user( const char *arg, int *syslogUser )
{
static slap_verbmasks syslogUsers[] = {
{ BER_BVC("LOCAL0"), LOG_LOCAL0 },
{ BER_BVC("LOCAL1"), LOG_LOCAL1 },
{ BER_BVC("LOCAL2"), LOG_LOCAL2 },
{ BER_BVC("LOCAL3"), LOG_LOCAL3 },
{ BER_BVC("LOCAL4"), LOG_LOCAL4 },
{ BER_BVC("LOCAL5"), LOG_LOCAL5 },
{ BER_BVC("LOCAL6"), LOG_LOCAL6 },
{ BER_BVC("LOCAL7"), LOG_LOCAL7 },
#ifdef LOG_USER
{ BER_BVC("USER"), LOG_USER },
#endif /* LOG_USER */
#ifdef LOG_DAEMON
{ BER_BVC("DAEMON"), LOG_DAEMON },
#endif /* LOG_DAEMON */
{ BER_BVNULL, 0 }
};
int i = verb_to_mask( arg, syslogUsers );
if ( BER_BVISNULL( &syslogUsers[i].word ) ) {
Debug( LDAP_DEBUG_ANY, "unrecognized syslog user \"%s\".\n", arg );
return 1;
}
*syslogUser = syslogUsers[i].mask;
return 0;
}
#endif /* LOG_LOCAL4 */
int
parse_syslog_level( const char *arg, int *levelp )
{
static slap_verbmasks str2syslog_level[] = {
{ BER_BVC("EMERG"), LOG_EMERG },
{ BER_BVC("ALERT"), LOG_ALERT },
{ BER_BVC("CRIT"), LOG_CRIT },
{ BER_BVC("ERR"), LOG_ERR },
{ BER_BVC("WARNING"), LOG_WARNING },
{ BER_BVC("NOTICE"), LOG_NOTICE },
{ BER_BVC("INFO"), LOG_INFO },
{ BER_BVC("DEBUG"), LOG_DEBUG },
{ BER_BVNULL, 0 }
};
int i = verb_to_mask( arg, str2syslog_level );
if ( BER_BVISNULL( &str2syslog_level[i].word ) ) {
Debug( LDAP_DEBUG_ANY, "unknown syslog level \"%s\".\n", arg );
return 1;
}
*levelp = str2syslog_level[i].mask;
return 0;
}
#endif /* LDAP_DEBUG && LDAP_SYSLOG */
int
parse_debug_unknowns( char **unknowns, int *levelp )
{
int i, level, rc = 0;
for ( i = 0; unknowns[i] != NULL; i++ ) {
level = 0;
if ( str2loglevel( unknowns[i], &level ) ) {
fprintf( stderr, "unrecognized log level \"%s\"\n", unknowns[i] );
rc = 1;
} else {
*levelp |= level;
}
}
return rc;
}
int
parse_debug_level( const char *arg, int *levelp, char ***unknowns )
{
int level;
if ( arg && arg[0] != '-' && !isdigit( (unsigned char)arg[0] ) ) {
int i;
char **levels;
levels = ldap_str2charray( arg, "," );
for ( i = 0; levels[i] != NULL; i++ ) {
level = 0;
if ( str2loglevel( levels[i], &level ) ) {
/* remember this for later */
ldap_charray_add( unknowns, levels[i] );
fprintf( stderr, "unrecognized log level \"%s\" (deferred)\n",
levels[i] );
} else {
*levelp |= level;
}
}
ldap_charray_free( levels );
} else {
int rc;
if ( arg[0] == '-' ) {
rc = lutil_atoix( &level, arg, 0 );
} else {
unsigned ulevel;
rc = lutil_atoux( &ulevel, arg, 0 );
level = (int)ulevel;
}
if ( rc ) {
fprintf( stderr,
"unrecognized log level "
"\"%s\"\n",
arg );
return 1;
}
if ( level == 0 ) {
*levelp = 0;
} else {
*levelp |= level;
}
}
return 0;
}
static void
usage( char *name )
{
fprintf( stderr, "usage: %s options\n", name );
fprintf( stderr,
"\t-4\t\tIPv4 only\n"
"\t-6\t\tIPv6 only\n"
"\t-d level\tDebug level"
"\n"
"\t-f filename\tConfiguration file\n"
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"\t-g group\tGroup (id or name) to run as\n"
#endif
"\t-h URLs\t\tList of URLs to serve\n"
#ifdef SLAP_DEFAULT_SYSLOG_USER
"\t-l facility\tSyslog facility (default: LOCAL4)\n"
#endif
"\t-n serverName\tService name\n"
"\t-o <opt>[=val] generic means to specify options" );
if ( !BER_BVISNULL( &option_helpers[0].oh_name ) ) {
int i;
fprintf( stderr, "; supported options:\n" );
for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name ); i++ ) {
fprintf( stderr, "\t\t%s\n", option_helpers[i].oh_usage );
}
} else {
fprintf( stderr, "\n" );
}
fprintf( stderr,
#ifdef HAVE_CHROOT
"\t-r directory\tSandbox directory to chroot to\n"
#endif
"\t-s level\tSyslog level\n"
"\t-t\t\tCheck configuration file\n"
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"\t-u user\t\tUser (id or name) to run as\n"
#endif
"\t-V\t\tprint version info (-VV exit afterwards)\n" );
}
#ifdef HAVE_NT_SERVICE_MANAGER
void WINAPI
ServiceMain( DWORD argc, LPTSTR *argv )
#else
int
main( int argc, char **argv )
#endif
{
int i, no_detach = 0;
int rc = 1;
char *urls = NULL;
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
char *username = NULL;
char *groupname = NULL;
#endif
#if defined(HAVE_CHROOT)
char *sandbox = NULL;
#endif
#ifdef SLAP_DEFAULT_SYSLOG_USER
int syslogUser = SLAP_DEFAULT_SYSLOG_USER;
#endif
#ifndef HAVE_WINSOCK
int pid, waitfds[2];
#endif
int g_argc = argc;
char **g_argv = argv;
char *configfile = NULL;
char *configdir = NULL;
char *serverName;
int serverMode = SLAP_SERVER_MODE;
char **debug_unknowns = NULL;
char **syslog_unknowns = NULL;
int slapd_pid_file_unlink = 0, slapd_args_file_unlink = 0;
int firstopt = 1;
slap_sl_mem_init();
serverName = lutil_progname( "lloadd", argc, argv );
#ifdef HAVE_NT_SERVICE_MANAGER
{
int *ip;
char *newConfigFile;
char *newConfigDir;
char *newUrls;
char *regService = NULL;
if ( is_NT_Service ) {
lutil_CommenceStartupProcessing( serverName, lload_sig_shutdown );
if ( strcmp( serverName, SERVICE_NAME ) ) regService = serverName;
}
ip = (int *)lutil_getRegParam( regService, "DebugLevel" );
if ( ip != NULL ) {
slap_debug = *ip;
Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n",
slap_debug );
}
newUrls = (char *)lutil_getRegParam( regService, "Urls" );
if ( newUrls ) {
if ( urls ) ch_free( urls );
urls = ch_strdup( newUrls );
Debug( LDAP_DEBUG_ANY, "new urls from registry: %s\n", urls );
}
newConfigFile = (char *)lutil_getRegParam( regService, "ConfigFile" );
if ( newConfigFile != NULL ) {
configfile = ch_strdup( newConfigFile );
Debug( LDAP_DEBUG_ANY, "new config file from registry is: %s\n",
configfile );
}
newConfigDir = (char *)lutil_getRegParam( regService, "ConfigDir" );
if ( newConfigDir != NULL ) {
configdir = ch_strdup( newConfigDir );
Debug( LDAP_DEBUG_ANY, "new config dir from registry is: %s\n",
configdir );
}
}
#endif
epoch_init();
while ( (i = getopt( argc, argv,
"c:d:f:F:h:n:o:s:tV"
#ifdef LDAP_PF_INET6
"46"
#endif
#ifdef HAVE_CHROOT
"r:"
#endif
#if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
"S:"
#ifdef LOG_LOCAL4
"l:"
#endif
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"u:g:"
#endif
)) != EOF ) {
switch ( i ) {
#ifdef LDAP_PF_INET6
case '4':
slap_inet4or6 = AF_INET;
break;
case '6':
slap_inet4or6 = AF_INET6;
break;
#endif
case 'h': /* listen URLs */
if ( urls != NULL ) free( urls );
urls = ch_strdup( optarg );
break;
case 'd': { /* set debug level and 'do not detach' flag */
int level = 0;
if ( strcmp( optarg, "?" ) == 0 ) {
check |= CHECK_LOGLEVEL;
break;
}
no_detach = 1;
if ( parse_debug_level( optarg, &level, &debug_unknowns ) ) {
goto destroy;
}
#ifdef LDAP_DEBUG
slap_debug |= level;
#else
if ( level != 0 )
fputs( "must compile with LDAP_DEBUG for debugging\n",
stderr );
#endif
} break;
case 'f': /* read config file */
configfile = ch_strdup( optarg );
break;
case 'o': {
char *val = strchr( optarg, '=' );
struct berval opt;
opt.bv_val = optarg;
if ( val ) {
opt.bv_len = ( val - optarg );
val++;
} else {
opt.bv_len = strlen( optarg );
}
for ( i = 0; !BER_BVISNULL( &option_helpers[i].oh_name );
i++ ) {
if ( ber_bvstrcasecmp( &option_helpers[i].oh_name, &opt ) ==
0 ) {
assert( option_helpers[i].oh_fnc != NULL );
if ( (*option_helpers[i].oh_fnc)(
val, option_helpers[i].oh_arg ) == -1 ) {
/* we assume the option parsing helper
* issues appropriate and self-explanatory
* error messages... */
goto stop;
}
break;
}
}
if ( BER_BVISNULL( &option_helpers[i].oh_name ) ) {
goto unhandled_option;
}
break;
}
case 's': /* set syslog level */
if ( strcmp( optarg, "?" ) == 0 ) {
check |= CHECK_LOGLEVEL;
break;
}
if ( parse_debug_level(
optarg, &ldap_syslog, &syslog_unknowns ) ) {
goto destroy;
}
break;
#if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
case 'S':
if ( parse_syslog_level( optarg, &ldap_syslog_level ) ) {
goto destroy;
}
break;
#ifdef LOG_LOCAL4
case 'l': /* set syslog local user */
if ( parse_syslog_user( optarg, &syslogUser ) ) {
goto destroy;
}
break;
#endif
#endif /* LDAP_DEBUG && LDAP_SYSLOG */
#ifdef HAVE_CHROOT
case 'r':
if ( sandbox ) free( sandbox );
sandbox = ch_strdup( optarg );
break;
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
case 'u': /* user name */
if ( username ) free( username );
username = ch_strdup( optarg );
break;
case 'g': /* group name */
if ( groupname ) free( groupname );
groupname = ch_strdup( optarg );
break;
#endif /* SETUID && GETUID */
case 'n': /* NT service name */
serverName = ch_strdup( optarg );
break;
case 't':
check |= CHECK_CONFIG;
break;
case 'V':
version++;
break;
default:
unhandled_option:;
usage( argv[0] );
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
goto stop;
}
if ( firstopt ) {
firstopt = 0;
}
}
if ( optind != argc ) goto unhandled_option;
ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug );
ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug );
ldif_debug = slap_debug;
if ( version ) {
fprintf( stderr, "%s\n", Versionstr );
if ( version > 1 ) goto stop;
}
#if defined(LDAP_DEBUG) && defined(LDAP_SYSLOG)
{
char *logName;
#ifdef HAVE_EBCDIC
logName = ch_strdup( serverName );
__atoe( logName );
#else
logName = serverName;
#endif
#ifdef LOG_LOCAL4
openlog( logName, OPENLOG_OPTIONS, syslogUser );
#elif defined LOG_DEBUG
openlog( logName, OPENLOG_OPTIONS );
#endif
#ifdef HAVE_EBCDIC
free( logName );
#endif
}
#endif /* LDAP_DEBUG && LDAP_SYSLOG */
Debug( LDAP_DEBUG_ANY, "%s", Versionstr );
global_host = ldap_pvt_get_fqdn( NULL );
if ( check == CHECK_NONE && lloadd_listeners_init( urls ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
goto stop;
}
#if defined(HAVE_CHROOT)
if ( sandbox ) {
if ( chdir( sandbox ) ) {
perror( "chdir" );
rc = 1;
goto stop;
}
if ( chroot( sandbox ) ) {
perror( "chroot" );
rc = 1;
goto stop;
}
if ( chdir( "/" ) ) {
perror( "chdir" );
rc = 1;
goto stop;
}
}
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
if ( username != NULL || groupname != NULL ) {
slap_init_user( username, groupname );
}
#endif
rc = lload_init( serverMode, serverName );
if ( rc ) {
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
goto destroy;
}
if ( lload_read_config( configfile, configdir ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
if ( check & CHECK_CONFIG ) {
fprintf( stderr, "config check failed\n" );
}
goto destroy;
}
if ( debug_unknowns ) {
rc = parse_debug_unknowns( debug_unknowns, &slap_debug );
ldap_charray_free( debug_unknowns );
debug_unknowns = NULL;
if ( rc ) goto destroy;
}
if ( syslog_unknowns ) {
rc = parse_debug_unknowns( syslog_unknowns, &ldap_syslog );
ldap_charray_free( syslog_unknowns );
syslog_unknowns = NULL;
if ( rc ) goto destroy;
}
if ( check & CHECK_LOGLEVEL ) {
rc = 0;
goto destroy;
}
if ( check & CHECK_CONFIG ) {
fprintf( stderr, "config check succeeded\n" );
check &= ~CHECK_CONFIG;
if ( check == CHECK_NONE ) {
rc = 0;
goto destroy;
}
}
#ifdef HAVE_TLS
rc = ldap_pvt_tls_init();
if ( rc != 0 ) {
Debug( LDAP_DEBUG_ANY, "main: "
"TLS init failed: %d\n",
rc );
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
goto destroy;
}
if ( lload_tls_init() ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
goto destroy;
}
#endif
daemon_base = event_base_new();
if ( !daemon_base ) {
Debug( LDAP_DEBUG_ANY, "main: "
"main event base allocation failed\n" );
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
goto destroy;
}
for ( i = 0; signal_handlers[i].signal; i++ ) {
struct event *event;
event = evsignal_new( daemon_base, signal_handlers[i].signal,
signal_handlers[i].handler, daemon_base );
if ( !event || event_add( event, NULL ) ) {
Debug( LDAP_DEBUG_ANY, "main: "
"failed to register a handler for signal %d\n",
signal_handlers[i].signal );
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
goto destroy;
}
signal_handlers[i].event = event;
}
#ifndef HAVE_WINSOCK
if ( !no_detach ) {
if ( lutil_pair( waitfds ) < 0 ) {
Debug( LDAP_DEBUG_ANY, "main: "
"lutil_pair failed\n" );
rc = 1;
goto destroy;
}
pid = lutil_detach( no_detach, 0 );
if ( pid ) {
char buf[4];
rc = EXIT_SUCCESS;
close( waitfds[1] );
if ( read( waitfds[0], buf, 1 ) != 1 ) rc = EXIT_FAILURE;
_exit( rc );
} else {
close( waitfds[0] );
}
}
#endif /* HAVE_WINSOCK */
if ( slapd_pid_file != NULL ) {
FILE *fp = fopen( slapd_pid_file, "w" );
if ( fp == NULL ) {
char ebuf[128];
int save_errno = errno;
Debug( LDAP_DEBUG_ANY, "unable to open pid file "
"\"%s\": %d (%s)\n",
slapd_pid_file, save_errno,
AC_STRERROR_R( save_errno, ebuf, sizeof(ebuf) ) );
free( slapd_pid_file );
slapd_pid_file = NULL;
rc = 1;
goto destroy;
}
fprintf( fp, "%d\n", (int)getpid() );
fclose( fp );
slapd_pid_file_unlink = 1;
}
if ( slapd_args_file != NULL ) {
FILE *fp = fopen( slapd_args_file, "w" );
if ( fp == NULL ) {
char ebuf[128];
int save_errno = errno;
Debug( LDAP_DEBUG_ANY, "unable to open args file "
"\"%s\": %d (%s)\n",
slapd_args_file, save_errno,
AC_STRERROR_R( save_errno, ebuf, sizeof(ebuf) ) );
free( slapd_args_file );
slapd_args_file = NULL;
rc = 1;
goto destroy;
}
for ( i = 0; i < g_argc; i++ ) {
fprintf( fp, "%s ", g_argv[i] );
}
fprintf( fp, "\n" );
fclose( fp );
slapd_args_file_unlink = 1;
}
/*
* FIXME: moved here from lloadd_daemon_task()
* because back-monitor db_open() needs it
*/
time( &starttime );
Debug( LDAP_DEBUG_ANY, "lloadd starting\n" );
#ifndef HAVE_WINSOCK
if ( !no_detach ) {
write( waitfds[1], "1", 1 );
close( waitfds[1] );
}
#endif
#ifdef HAVE_NT_EVENT_LOG
if ( is_NT_Service )
lutil_LogStartedEvent( serverName, slap_debug,
configfile ? configfile : LLOADD_DEFAULT_CONFIGFILE, urls );
#endif
rc = lloadd_daemon( daemon_base );
#ifdef HAVE_NT_SERVICE_MANAGER
/* Throw away the event that we used during the startup process. */
if ( is_NT_Service ) ldap_pvt_thread_cond_destroy( &started_event );
#endif
destroy:
if ( daemon_base ) {
for ( i = 0; signal_handlers[i].signal; i++ ) {
if ( signal_handlers[i].event ) {
event_del( signal_handlers[i].event );
event_free( signal_handlers[i].event );
}
}
event_base_free( daemon_base );
}
if ( check & CHECK_LOGLEVEL ) {
(void)loglevel_print( stdout );
}
/* remember an error during destroy */
rc |= lload_destroy();
stop:
#ifdef HAVE_NT_EVENT_LOG
if ( is_NT_Service ) lutil_LogStoppedEvent( serverName );
#endif
Debug( LDAP_DEBUG_ANY, "lloadd stopped.\n" );
#ifdef HAVE_NT_SERVICE_MANAGER
lutil_ReportShutdownComplete();
#endif
#ifdef LOG_DEBUG
closelog();
#endif
lloadd_daemon_destroy();
#ifdef HAVE_TLS
if ( lload_tls_ld ) {
ldap_pvt_tls_ctx_free( lload_tls_ctx );
ldap_unbind_ext( lload_tls_ld, NULL, NULL );
}
ldap_pvt_tls_destroy();
#endif
if ( slapd_pid_file_unlink ) {
unlink( slapd_pid_file );
}
if ( slapd_args_file_unlink ) {
unlink( slapd_args_file );
}
lload_config_destroy();
if ( configfile ) ch_free( configfile );
if ( configdir ) ch_free( configdir );
if ( urls ) ch_free( urls );
if ( global_host ) ch_free( global_host );
/* kludge, get symbols referenced */
tavl_free( NULL, NULL );
MAIN_RETURN(rc);
}
#ifdef SIGPIPE
/*
* Catch and discard terminated child processes, to avoid zombies.
*/
static void
sigpipe( evutil_socket_t sig, short what, void *arg )
{
}
#endif /* SIGPIPE */
#ifdef LDAP_SIGCHLD
/*
* Catch and discard terminated child processes, to avoid zombies.
*/
static void
wait4child( evutil_socket_t sig, short what, void *arg )
{
int save_errno = errno;
#ifdef WNOHANG
do
errno = 0;
#ifdef HAVE_WAITPID
while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR );
#else
while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR );
#endif
#else
(void)wait( NULL );
#endif
errno = save_errno;
}
#endif /* LDAP_SIGCHLD */
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