2 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
3 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
12 #include <ac/signal.h>
13 #include <ac/socket.h>
14 #include <ac/string.h>
16 #include <ac/unistd.h>
19 #include "ldap_defaults.h"
25 int allow_severity = LOG_INFO;
26 int deny_severity = LOG_NOTICE;
27 #endif /* TCP Wrappers */
31 ber_socket_t dtblsize;
33 typedef struct slap_listener {
40 struct sockaddr_in sl_addr;
43 Listener **slap_listeners = NULL;
47 extern ldap_pvt_thread_cond_t started_event;
49 /* forward reference */
50 static void hit_socket(void);
52 char *WSAGetLastErrorString();
53 static ldap_pvt_thread_t hit_tid;
55 #define WAKE_LISTENER(w) \
58 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );\
63 #define WAKE_LISTENER(w) \
66 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );\
74 volatile sig_atomic_t slapd_shutdown = 0;
75 static int sel_exit_fd;
77 static ldap_pvt_thread_t listener_tid;
78 static volatile sig_atomic_t slapd_listener = 0;
80 static struct slap_daemon {
81 ldap_pvt_thread_mutex_t sd_mutex;
86 /* In winsock, accept() returns values higher than dtblsize
87 so don't bother with this optimization */
97 * Add a descriptor to daemon control
99 static void slapd_add(ber_socket_t s) {
100 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
102 assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
103 assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
104 assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
107 if (s >= slap_daemon.sd_nfds) {
108 slap_daemon.sd_nfds = s + 1;
112 FD_SET( s, &slap_daemon.sd_actives );
113 FD_SET( s, &slap_daemon.sd_readers );
115 Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
117 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
118 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
120 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
124 * Remove the descriptor from daemon control
126 void slapd_remove(ber_socket_t s, int wake) {
127 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
130 Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
132 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
133 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
135 FD_CLR( s, &slap_daemon.sd_actives );
136 FD_CLR( s, &slap_daemon.sd_readers );
137 FD_CLR( s, &slap_daemon.sd_writers );
139 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
142 void slapd_clr_write(ber_socket_t s, int wake) {
143 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
146 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
147 FD_CLR( s, &slap_daemon.sd_writers );
149 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
152 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );
156 void slapd_set_write(ber_socket_t s, int wake) {
157 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
160 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
161 FD_SET( (unsigned) s, &slap_daemon.sd_writers );
163 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
166 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );
170 void slapd_clr_read(ber_socket_t s, int wake) {
171 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
174 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
175 FD_CLR( s, &slap_daemon.sd_readers );
177 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
180 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );
184 void slapd_set_read(ber_socket_t s, int wake) {
185 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
188 assert( FD_ISSET( s, &slap_daemon.sd_actives) );
189 FD_SET( s, &slap_daemon.sd_readers );
191 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
194 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );
198 static void slapd_close(ber_socket_t s) {
199 Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
217 rc = ldap_url_parse( url, &lud );
219 if( rc != LDAP_URL_SUCCESS ) {
220 Debug( LDAP_DEBUG_ANY,
221 "daemon: listen URL \"%s\" parse error=%d\n",
227 if( lud->lud_ldaps ) {
228 Debug( LDAP_DEBUG_ANY,
229 "daemon: TLS not supported (%s)\n",
231 ldap_free_urldesc( lud );
235 if(! lud->lud_port ) {
236 lud->lud_port = port;
240 l.sl_is_tls = lud->lud_ldaps;
242 if(! lud->lud_port ) {
243 lud->lud_port = lud->lud_ldaps ? tls_port : port;
247 port = lud->lud_port;
249 (void) memset( (void*) &l.sl_addr, '\0', sizeof(l.sl_addr) );
251 l.sl_addr.sin_family = AF_INET;
252 l.sl_addr.sin_port = htons( (unsigned short) lud->lud_port );
254 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
255 || strcmp(lud->lud_host, "*") == 0 )
257 l.sl_addr.sin_addr.s_addr = htonl(INADDR_ANY);
260 /* host or address was specified */
261 if( !inet_aton( lud->lud_host, &l.sl_addr.sin_addr ) ) {
262 struct hostent *he = gethostbyname( lud->lud_host );
264 Debug( LDAP_DEBUG_ANY, "invalid host (%s) in URL: %s",
265 lud->lud_host, url, 0);
266 ldap_free_urldesc( lud );
270 memcpy( &l.sl_addr.sin_addr, he->h_addr,
271 sizeof( l.sl_addr.sin_addr ) );
275 ldap_free_urldesc( lud );
278 if ( (l.sl_sd = socket( AF_INET, SOCK_STREAM, 0 )) == AC_SOCKET_INVALID ) {
279 int err = sock_errno();
280 Debug( LDAP_DEBUG_ANY,
281 "daemon: socket() failed errno=%d (%s)\n", err,
287 if ( l.sl_sd >= dtblsize ) {
288 Debug( LDAP_DEBUG_ANY,
289 "daemon: listener descriptor %ld is too great %ld\n",
290 (long) l.sl_sd, (long) dtblsize, 0 );
291 tcp_close( l.sl_sd );
297 /* enable address reuse */
299 if ( setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
300 (char *) &tmp, sizeof(tmp) ) == -1 )
302 int err = sock_errno();
303 Debug( LDAP_DEBUG_ANY,
304 "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
305 (long) l.sl_sd, err, sock_errstr() );
309 /* enable keep alives */
311 if ( setsockopt( l.sl_sd, SOL_SOCKET, SO_KEEPALIVE,
312 (char *) &tmp, sizeof(tmp) ) == -1 )
314 int err = sock_errno();
315 Debug( LDAP_DEBUG_ANY,
316 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed errno=%d (%s)\n",
317 (long) l.sl_sd, err, sock_errstr() );
321 /* enable no delay */
323 if ( setsockopt( l.sl_sd, IPPROTO_TCP, TCP_NODELAY,
324 (char *)&tmp, sizeof(tmp) ) )
326 int err = sock_errno();
327 Debug( LDAP_DEBUG_ANY,
328 "slapd(%ld): setsockopt(TCP_NODELAY) failed errno=%d (%s)\n",
329 (long) l.sl_sd, err, sock_errstr() );
333 if ( bind( l.sl_sd, (struct sockaddr *) &l.sl_addr, sizeof(l.sl_addr) ) == -1 ) {
334 int err = sock_errno();
335 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
336 (long) l.sl_sd, err, sock_errstr() );
337 tcp_close( l.sl_sd );
341 l.sl_url = ch_strdup( url );
343 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65336") );
344 s = inet_ntoa( l.sl_addr.sin_addr );
345 sprintf( l.sl_name, "IP=%s:%d",
346 s != NULL ? s : "unknown" , port );
348 li = ch_malloc( sizeof( Listener ) );
351 Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
357 static int sockinit(void);
358 static int sockdestroy(void);
360 int slapd_daemon_init(char *urls, int port, int tls_port )
366 assert( tls_port == 0 );
369 Debug( LDAP_DEBUG_ARGS, "daemon_init: %s (%d/%d)\n",
370 urls ? urls : "<null>", port, tls_port );
372 if( rc = sockinit() ) {
377 dtblsize = sysconf( _SC_OPEN_MAX );
378 #elif HAVE_GETDTABLESIZE
379 dtblsize = getdtablesize();
381 dtblsize = FD_SETSIZE;
385 if(dtblsize > FD_SETSIZE) {
386 dtblsize = FD_SETSIZE;
388 #endif /* !FD_SETSIZE */
390 /* set up a datagram socket connected to itself. we write a byte
391 * on this socket whenever we catch a signal. The main loop will
392 * be select'ing on this socket, and will wake up when this byte
395 if( (sel_exit_fd = socket( AF_INET, SOCK_DGRAM, 0 )) < 0 )
397 int err = sock_errno();
398 Debug( LDAP_DEBUG_ANY,
399 "daemon: socket() failed errno=%d (%s)\n", err,
403 struct sockaddr_in si;
404 int len = sizeof(si);
407 (void) memset( (void*) &si, 0, len );
409 si.sin_family = AF_INET;
411 si.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
413 if( rc = bind( sel_exit_fd, (struct sockaddr *)&si, len ) )
416 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
417 (long) sel_exit_fd, err, sock_errstr() );
418 tcp_close( sel_exit_fd );
421 if( rc = getsockname( sel_exit_fd, (struct sockaddr *)&si, &len))
424 Debug( LDAP_DEBUG_ANY, "daemon: getsockname(%ld) failed errno=%d (%s)\n",
425 (long) sel_exit_fd, err, sock_errstr() );
426 tcp_close( sel_exit_fd );
429 if( rc = connect( sel_exit_fd, (struct sockaddr *)&si, len))
432 Debug( LDAP_DEBUG_ANY, "daemon: connect(%ld) failed errno=%d (%s)\n",
433 (long) sel_exit_fd, err, sock_errstr() );
434 tcp_close( sel_exit_fd );
439 FD_ZERO( &slap_daemon.sd_readers );
440 FD_ZERO( &slap_daemon.sd_writers );
446 u = str2charray( urls, " " );
448 if( u == NULL || u[0] == NULL ) {
449 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
455 for( i=0; u[i] != NULL; i++ ) {
456 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
461 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
467 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
470 slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
472 for(i = 0; u[i] != NULL; i++ ) {
473 slap_listeners[i] = open_listener( u[i], port, tls_port );
475 if( slap_listeners[i] == NULL ) {
480 slap_listeners[i] = NULL;
482 Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
486 ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
492 slapd_daemon_destroy(void)
494 connections_destroy();
509 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
510 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
513 if ( listen( slap_listeners[l]->sl_sd, 5 ) == -1 ) {
514 int err = sock_errno();
515 Debug( LDAP_DEBUG_ANY,
516 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
517 (long) slap_listeners[l]->sl_url, err,
522 slapd_add( slap_listeners[l]->sl_sd );
526 if ( started_event != NULL ) {
527 ldap_pvt_thread_cond_signal( &started_event );
530 /* initialization complete. Here comes the loop. */
532 while ( !slapd_shutdown ) {
537 #define SLAPD_EBADF_LIMIT 10
540 #define SLAPD_IDLE_CHECK_LIMIT 4
541 time_t last_idle_check = slap_get_time();
548 struct sockaddr_in from;
549 #if defined(SLAPD_RLOOKUPS) || defined(HAVE_TCPD)
555 if( global_idletimeout > 0 && difftime(
556 last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT,
559 connections_timeout_idle(now);
562 FD_ZERO( &writefds );
568 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
570 #ifdef FD_SET_MANUAL_COPY
571 for( s = 0; s < nfds; s++ ) {
572 if(FD_ISSET( &slap_sd_readers, s )) {
573 FD_SET( s, &readfds );
575 if(FD_ISSET( &slap_sd_writers, s )) {
576 FD_SET( s, &writefds );
580 memcpy( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
581 memcpy( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
583 FD_SET( sel_exit_fd, &readfds );
585 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
586 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
588 FD_SET( slap_listeners[l]->sl_sd, &readfds );
592 nfds = slap_daemon.sd_nfds;
597 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
599 ldap_pvt_thread_mutex_lock( &active_threads_mutex );
601 ldap_pvt_thread_mutex_unlock( &active_threads_mutex );
603 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
606 tvp = at ? &zero : NULL;
609 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
610 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
613 Debug( LDAP_DEBUG_CONNS,
614 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
615 slap_listeners[l]->sl_sd, at,
616 tvp == NULL ? "NULL" : "zero" );
619 switch(ns = select( nfds, &readfds,
621 /* don't pass empty fd_set */
622 ( writefds.fd_count > 0 ? &writefds : NULL ),
628 case -1: { /* failure - try again */
629 int err = sock_errno();
631 if( err == EBADF && ++ebadf < SLAPD_EBADF_LIMIT) {
636 Debug( LDAP_DEBUG_CONNS,
637 "daemon: select failed (%d): %s\n",
638 err, sock_errstr(), 0 );
645 case 0: /* timeout - let threads run */
647 Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
649 ldap_pvt_thread_yield();
652 default: /* something happened - deal with it */
654 Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
659 if( FD_ISSET( sel_exit_fd, &readfds ) )
662 read( sel_exit_fd, &c, 1 );
665 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
667 socklen_t len = sizeof(from);
673 char peername[sizeof("IP=255.255.255.255:65336")];
675 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
678 if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
681 if ( (s = accept( slap_listeners[l]->sl_sd,
682 (struct sockaddr *) &from, &len )) == AC_SOCKET_INVALID )
684 int err = sock_errno();
685 Debug( LDAP_DEBUG_ANY,
686 "daemon: accept(%ld) failed errno=%d (%s)\n",
687 (long) slap_listeners[l]->sl_sd, err,
693 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
695 /* newly accepted stream should not be in any of the FD SETS */
697 assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
698 assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
699 assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
701 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
705 /* make sure descriptor number isn't too great */
706 if ( s >= dtblsize ) {
707 Debug( LDAP_DEBUG_ANY,
708 "daemon: %ld beyond descriptor table size %ld\n",
709 (long) s, (long) dtblsize, 0 );
715 Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
720 if ( getpeername( s, (struct sockaddr *) &from, &len ) != 0 ) {
721 int err = sock_errno();
722 Debug( LDAP_DEBUG_ANY,
723 "daemon: getpeername( %ld ) failed: errno=%d (%s)\n",
724 (long) s, err, sock_errstr() );
729 peeraddr = inet_ntoa( from.sin_addr );
730 sprintf( peername, "IP=%s:%d",
731 peeraddr != NULL ? peeraddr : "unknown",
732 (unsigned) ntohs( from.sin_port ) );
734 #if defined(SLAPD_RLOOKUPS) || defined(HAVE_TCPD)
735 hp = gethostbyaddr( (char *)
736 &(from.sin_addr.s_addr),
737 sizeof(from.sin_addr.s_addr), AF_INET );
740 dnsname = ldap_pvt_str2lower( hp->h_name );
750 if( !hosts_ctl("slapd",
751 dnsname != NULL ? dnsname : STRING_UNKNOWN,
752 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
756 Statslog( LDAP_DEBUG_ANY,
757 "fd=%ld connection from %s (%s) denied.\n",
759 dnsname != NULL ? dnsname : "unknown",
760 peeraddr != NULL ? peeraddr : "unknown",
766 #endif /* HAVE_TCPD */
768 if( (id = connection_init(s,
769 slap_listeners[l]->sl_url,
770 dnsname != NULL ? dnsname : "unknown",
772 slap_listeners[l]->sl_name,
774 slap_listeners[l]->sl_is_tls
780 Debug( LDAP_DEBUG_ANY,
781 "daemon: connection_init(%ld, %s, %s) failed.\n",
784 slap_listeners[l]->sl_name );
789 Statslog( LDAP_DEBUG_STATS,
790 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
793 slap_listeners[l]->sl_name,
801 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
803 for ( i = 0; i < readfds.fd_count; i++ ) {
804 Debug( LDAP_DEBUG_CONNS, " %d%s",
805 readfds.fd_array[i], "r", 0 );
807 for ( i = 0; i < writefds.fd_count; i++ ) {
808 Debug( LDAP_DEBUG_CONNS, " %d%s",
809 writefds.fd_array[i], "w", 0 );
812 for ( i = 0; i < nfds; i++ ) {
816 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
817 if ( i == slap_listeners[l]->sl_sd ) {
825 r = FD_ISSET( i, &readfds );
826 w = FD_ISSET( i, &writefds );
828 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
829 r ? "r" : "", w ? "w" : "" );
833 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
836 /* loop through the writers */
838 for ( i = 0; i < writefds.fd_count; i++ )
840 for ( i = 0; i < nfds; i++ )
846 wd = writefds.fd_array[i];
848 if( ! FD_ISSET( i, &writefds ) ) {
854 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
855 if ( i == slap_listeners[l]->sl_sd ) {
863 Debug( LDAP_DEBUG_CONNS,
864 "daemon: write active on %d\n",
868 * NOTE: it is possible that the connection was closed
869 * and that the stream is now inactive.
870 * connection_write() must valid the stream is still
874 if ( connection_write( wd ) < 0 ) {
875 FD_CLR( (unsigned) wd, &readfds );
881 for ( i = 0; i < readfds.fd_count; i++ )
883 for ( i = 0; i < nfds; i++ )
890 rd = readfds.fd_array[i];
892 if( ! FD_ISSET( i, &readfds ) ) {
898 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
899 if ( rd == slap_listeners[l]->sl_sd ) {
908 Debug ( LDAP_DEBUG_CONNS,
909 "daemon: read activity on %d\n", rd, 0, 0 );
912 * NOTE: it is possible that the connection was closed
913 * and that the stream is now inactive.
914 * connection_read() must valid the stream is still
918 if ( connection_read( rd ) < 0 ) {
922 ldap_pvt_thread_yield();
925 if( slapd_shutdown > 0 ) {
926 Debug( LDAP_DEBUG_TRACE,
927 "daemon: shutdown requested and initiated.\n",
930 } else if ( slapd_shutdown < 0 ) {
931 Debug( LDAP_DEBUG_TRACE,
932 "daemon: abnormal condition, shutdown initiated.\n",
935 Debug( LDAP_DEBUG_TRACE,
936 "daemon: no active streams, shutdown initiated.\n",
940 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
941 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
942 slapd_close( slap_listeners[l]->sl_sd );
947 ldap_pvt_thread_mutex_lock( &active_threads_mutex );
948 Debug( LDAP_DEBUG_ANY,
949 "slapd shutdown: waiting for %d threads to terminate\n",
950 active_threads, 0, 0 );
951 while ( active_threads > 0 ) {
952 ldap_pvt_thread_cond_wait(&active_threads_cond, &active_threads_mutex);
954 ldap_pvt_thread_mutex_unlock( &active_threads_mutex );
960 int slapd_daemon( void )
966 #define SLAPD_LISTENER_THREAD 1
967 #if defined( SLAPD_LISTENER_THREAD ) || !defined(HAVE_PTHREADS)
969 /* listener as a separate THREAD */
970 rc = ldap_pvt_thread_create( &listener_tid,
971 0, slapd_daemon_task, NULL );
974 Debug( LDAP_DEBUG_ANY,
975 "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
979 /* wait for the listener thread to complete */
980 ldap_pvt_thread_join( listener_tid, (void *) NULL );
982 /* expermimental code */
983 listener_tid = pthread_self();
984 slapd_daemon_task( NULL );
994 WORD wVersionRequested;
998 wVersionRequested = MAKEWORD( 2, 0 );
1000 err = WSAStartup( wVersionRequested, &wsaData );
1002 /* Tell the user that we couldn't find a usable */
1007 /* Confirm that the WinSock DLL supports 2.0.*/
1008 /* Note that if the DLL supports versions greater */
1009 /* than 2.0 in addition to 2.0, it will still return */
1010 /* 2.0 in wVersion since that is the version we */
1013 if ( LOBYTE( wsaData.wVersion ) != 2 ||
1014 HIBYTE( wsaData.wVersion ) != 0 )
1016 /* Tell the user that we couldn't find a usable */
1022 /* The WinSock DLL is acceptable. Proceed. */
1026 int sockdestroy(void)
1032 void hit_socket(void)
1036 extern struct sockaddr_in bind_addr;
1038 /* throw something at the socket to terminate the select() in the daemon thread. */
1039 if (( s = socket( AF_INET, SOCK_STREAM, 0 )) == AC_SOCKET_INVALID )
1040 Debug( LDAP_DEBUG_ANY,
1041 "slap_set_shutdown: socket failed\n\tWSAGetLastError=%d (%s)\n",
1042 WSAGetLastError(), WSAGetLastErrorString(), 0 );
1044 if ( ioctlsocket( s, FIONBIO, &on ) == -1 )
1045 Debug( LDAP_DEBUG_ANY,
1046 "slap_set_shutdown:FIONBIO ioctl on %d faled\n\tWSAGetLastError=%d (%s)\n",
1047 s, WSAGetLastError(), WSAGetLastError() );
1049 bind_addr.sin_addr.s_addr = htonl( INADDR_LOOPBACK );
1051 if ( connect( s, (struct sockaddr *)&bind_addr, sizeof( struct sockaddr_in )) == SOCKET_ERROR ) {
1052 Debug( LDAP_DEBUG_ANY,
1053 "hit_socket: error on connect: %d\n",
1054 WSAGetLastError(), 0, 0 );
1055 /* we can probably expect some error to occur here, mostly WSAEWOULDBLOCK */
1062 static int sockinit(void)
1064 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1069 static int sockdestroy(void)
1076 static int sockinit(void)
1080 static int sockdestroy(void)
1087 slap_set_shutdown( int sig )
1090 slapd_shutdown = sig;
1091 #ifndef HAVE_WINSOCK
1092 if(slapd_listener) {
1093 ldap_pvt_thread_kill( listener_tid, LDAP_SIGUSR1 );
1096 /* trying to "hit" the socket seems to always get a */
1097 /* EWOULDBLOCK error, so just close the listen socket to */
1098 /* break out of the select since we're shutting down anyway */
1099 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1100 if ( slap_listeners[l]->sl_sd >= 0 ) {
1101 tcp_close( slap_listeners[l]->sl_sd );
1105 write( sel_exit_fd, "0", 1 );
1106 /* reinstall self */
1107 (void) SIGNAL( sig, slap_set_shutdown );
1111 slap_do_nothing( int sig )
1113 /* reinstall self */
1114 (void) SIGNAL( sig, slap_do_nothing );