git.sur5r.net Git - openldap/blob - servers/slapd/daemon.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <stdio.h>
  10
  11 #include <ac/ctype.h>
  12 #include <ac/errno.h>
  13 #include <ac/socket.h>
  14 #include <ac/string.h>
  15 #include <ac/time.h>
  16 #include <ac/unistd.h>
  17
  18 #include "ldap_pvt.h"
  19 #include "ldap_pvt_thread.h"
  20 #include "lutil.h"
  21 #include "slap.h"
  22
  23 #ifdef HAVE_TCPD
  24 #include <tcpd.h>
  25
  26 int allow_severity = LOG_INFO;
  27 int deny_severity = LOG_NOTICE;
  28 #endif /* TCP Wrappers */
  29
  30 #ifdef LDAP_PF_LOCAL
  31 #include <sys/stat.h>
  32 /* this should go in <ldap.h> as soon as it is accepted */
  33 #define LDAPI_MOD_URLEXT                "x-mod"
  34 #endif /* LDAP_PF_LOCAL */
  35
  36 /* globals */
  37 time_t starttime;
  38 ber_socket_t dtblsize;
  39
  40 Listener **slap_listeners = NULL;
  41
  42 #define SLAPD_LISTEN 10
  43
  44 static ber_socket_t wake_sds[2];
  45
  46 #ifdef NO_THREADS
  47 static int waking;
  48 #define WAKE_LISTENER(w) \
  49 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
  50 #else
  51 #define WAKE_LISTENER(w) \
  52 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
  53 #endif
  54
  55 #ifndef HAVE_WINSOCK
  56 static
  57 #endif
  58 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
  59
  60 static struct slap_daemon {
  61         ldap_pvt_thread_mutex_t sd_mutex;
  62
  63         ber_socket_t sd_nactives;
  64
  65 #ifndef HAVE_WINSOCK
  66         /* In winsock, accept() returns values higher than dtblsize
  67                 so don't bother with this optimization */
  68         int sd_nfds;
  69 #endif
  70
  71         fd_set sd_actives;
  72         fd_set sd_readers;
  73         fd_set sd_writers;
  74 } slap_daemon;
  75
  76
  77
  78 #ifdef HAVE_SLP
  79 /*
  80  * SLP related functions
  81  */
  82 #include <slp.h>
  83
  84 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
  85 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
  86 static char** slapd_srvurls = NULL;
  87 static SLPHandle slapd_hslp = 0;
  88
  89 void slapd_slp_init( const char* urls ) {
  90         int i;
  91
  92         slapd_srvurls = str2charray( urls, " " );
  93
  94         if( slapd_srvurls == NULL ) return;
  95
  96         /* find and expand INADDR_ANY URLs */
  97         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
  98                 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
  99                         char *host = ldap_pvt_get_fqdn( NULL );
 100                         if ( host != NULL ) {
 101                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 102                                         strlen( host ) +
 103                                         sizeof( LDAP_SRVTYPE_PREFIX ) );
 104                                 strcpy( slap_strcopy(slapd_srvurls[i],
 105                                         LDAP_SRVTYPE_PREFIX ), host );
 106
 107                                 ch_free( host );
 108                         }
 109
 110                 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
 111                         char *host = ldap_pvt_get_fqdn( NULL );
 112                         if ( host != NULL ) {
 113                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 114                                         strlen( host ) +
 115                                         sizeof( LDAPS_SRVTYPE_PREFIX ) );
 116                                 strcpy( slap_strcopy(slapd_srvurls[i],
 117                                         LDAPS_SRVTYPE_PREFIX ), host );
 118
 119                                 ch_free( host );
 120                         }
 121                 }
 122         }
 123
 124         /* open the SLP handle */
 125         SLPOpen( "en", 0, &slapd_hslp );
 126 }
 127
 128 void slapd_slp_deinit() {
 129         if( slapd_srvurls == NULL ) return;
 130
 131         charray_free( slapd_srvurls );
 132         slapd_srvurls = NULL;
 133
 134         /* close the SLP handle */
 135         SLPClose( slapd_hslp );
 136 }
 137
 138 void slapd_slp_regreport(
 139         SLPHandle hslp,
 140         SLPError errcode,
 141         void* cookie )
 142 {
 143         /* empty report */
 144 }
 145
 146 void slapd_slp_reg() {
 147         int i;
 148
 149         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 150                 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
 151                                 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
 152                     strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
 153                                 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
 154                 {
 155                         SLPReg( slapd_hslp,
 156                                 slapd_srvurls[i],
 157                                 SLP_LIFETIME_MAXIMUM,
 158                                 "ldap",
 159                                 "",
 160                                 1,
 161                                 slapd_slp_regreport,
 162                                 NULL );
 163                 }
 164         }
 165 }
 166
 167 void slapd_slp_dereg() {
 168         int i;
 169
 170         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 171                 SLPDereg( slapd_hslp,
 172                         slapd_srvurls[i],
 173                         slapd_slp_regreport,
 174                         NULL );
 175         }
 176 }
 177 #endif /* HAVE_SLP */
 178
 179 /*
 180  * Add a descriptor to daemon control
 181  */
 182 static void slapd_add(ber_socket_t s) {
 183         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 184
 185         assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
 186         assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
 187         assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
 188
 189 #ifndef HAVE_WINSOCK
 190         if (s >= slap_daemon.sd_nfds) {
 191                 slap_daemon.sd_nfds = s + 1;
 192         }
 193 #endif
 194
 195         slap_daemon.sd_nactives++;
 196
 197         FD_SET( s, &slap_daemon.sd_actives );
 198         FD_SET( s, &slap_daemon.sd_readers );
 199
 200 #ifdef NEW_LOGGING
 201         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 202                    "slapd_add: added %ld%s%s\n",
 203                    (long)s,
 204                    FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 205                    FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ));
 206 #else
 207         Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
 208                 (long) s,
 209             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 210                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 211 #endif
 212         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 213 }
 214
 215 /*
 216  * Remove the descriptor from daemon control
 217  */
 218 void slapd_remove(ber_socket_t s, int wake) {
 219         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 220
 221         slap_daemon.sd_nactives--;
 222
 223 #ifdef NEW_LOGGING
 224         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 225                    "slapd_remove: removing %ld%s%s\n",
 226                    (long) s,
 227                    FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 228                    FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : ""  ));
 229 #else
 230         Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
 231                 (long) s,
 232             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 233                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 234 #endif
 235         FD_CLR( s, &slap_daemon.sd_actives );
 236         FD_CLR( s, &slap_daemon.sd_readers );
 237         FD_CLR( s, &slap_daemon.sd_writers );
 238
 239         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 240         WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
 241 }
 242
 243 void slapd_clr_write(ber_socket_t s, int wake) {
 244         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 245
 246         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 247         FD_CLR( s, &slap_daemon.sd_writers );
 248
 249         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 250         WAKE_LISTENER(wake);
 251 }
 252
 253 void slapd_set_write(ber_socket_t s, int wake) {
 254         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 255
 256         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 257         if (!FD_ISSET(s, &slap_daemon.sd_writers))
 258             FD_SET( (unsigned) s, &slap_daemon.sd_writers );
 259
 260         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 261         WAKE_LISTENER(wake);
 262 }
 263
 264 void slapd_clr_read(ber_socket_t s, int wake) {
 265         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 266
 267         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 268         FD_CLR( s, &slap_daemon.sd_readers );
 269
 270         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 271         WAKE_LISTENER(wake);
 272 }
 273
 274 void slapd_set_read(ber_socket_t s, int wake) {
 275         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 276
 277         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 278         if (!FD_ISSET(s, &slap_daemon.sd_readers))
 279             FD_SET( s, &slap_daemon.sd_readers );
 280
 281         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 282         WAKE_LISTENER(wake);
 283 }
 284
 285 static void slapd_close(ber_socket_t s) {
 286 #ifdef NEW_LOGGING
 287         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 288                    "slapd_close: closing %ld\n", (long)s ));
 289 #else
 290         Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
 291                 (long) s, 0, 0 );
 292 #endif
 293         tcp_close(s);
 294 }
 295
 296 static void slap_free_listener_addresses(struct sockaddr **sal)
 297 {
 298         struct sockaddr **sap;
 299
 300         if (sal == NULL) {
 301                 return;
 302         }
 303
 304         for (sap = sal; *sap != NULL; sap++) {
 305                 ch_free(*sap);
 306         }
 307
 308         ch_free(sal);
 309 }
 310
 311 #ifdef LDAP_PF_LOCAL
 312 static int get_url_perms(
 313         char    **exts,
 314         mode_t  *perms,
 315         int     *crit )
 316 {
 317         int     i;
 318
 319         assert( exts );
 320         assert( perms );
 321         assert( crit );
 322
 323         *crit = 0;
 324         for ( i = 0; exts[ i ]; i++ ) {
 325                 char    *type = exts[ i ];
 326                 int     c = 0;
 327
 328                 if ( type[ 0 ] == '!' ) {
 329                         c = 1;
 330                         type++;
 331                 }
 332
 333                 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
 334                         char    *value = type + sizeof(LDAPI_MOD_URLEXT "=") - 1;
 335                         mode_t  p = 0;
 336                         int     j;
 337
 338                         if ( strlen(value) != 3 ) {
 339                                 return LDAP_OTHER;
 340                         }
 341
 342                         for ( j = 0; j < 3; j++ ) {
 343                                 static mode_t   m[ 3 ]
 344                                         = { S_IRWXU, S_IRWXG, S_IRWXO };
 345
 346                                 switch ( value[ j ] ) {
 347                                 case 'w':
 348                                         p |= m[ j ];
 349                                         break;
 350                                 case '-':
 351                                         break;
 352                                 default:
 353                                         return LDAP_OTHER;
 354                                 }
 355                         }
 356
 357                         *crit = c;
 358                         *perms = p;
 359
 360                         return LDAP_SUCCESS;
 361                 }
 362         }
 363
 364         return LDAP_OTHER;
 365 }
 366 #endif /* LDAP_PF_LOCAL */
 367
 368 /* port = 0 indicates AF_LOCAL */
 369 static int slap_get_listener_addresses(
 370         const char *host,
 371         unsigned short port,
 372         struct sockaddr ***sal)
 373 {
 374         struct sockaddr **sap;
 375
 376 #ifdef LDAP_PF_LOCAL
 377         if ( port == 0 ) {
 378                 *sal = ch_malloc(2 * sizeof(void *));
 379                 if (*sal == NULL) {
 380                         return -1;
 381                 }
 382
 383                 sap = *sal;
 384                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 385                 if (*sap == NULL)
 386                         goto errexit;
 387                 sap[1] = NULL;
 388
 389                 if ( strlen(host) >
 390                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 391 #ifdef NEW_LOGGING
 392                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 393                                    "slap_get_listener_addresses: domain socket path (%s) too long in URL\n",
 394                                    host ));
 395 #else
 396                         Debug( LDAP_DEBUG_ANY,
 397                                "daemon: domain socket path (%s) too long in URL",
 398                                host, 0, 0);
 399 #endif
 400                         goto errexit;
 401                 }
 402
 403                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 404                 (*sap)->sa_family = AF_LOCAL;
 405                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 406         } else
 407 #endif
 408         {
 409 #ifdef HAVE_GETADDRINFO
 410                 struct addrinfo hints, *res, *sai;
 411                 int n, err;
 412                 char serv[7];
 413
 414                 memset( &hints, '\0', sizeof(hints) );
 415                 hints.ai_flags = AI_PASSIVE;
 416                 hints.ai_socktype = SOCK_STREAM;
 417                 hints.ai_family = AF_UNSPEC;
 418                 snprintf(serv, sizeof serv, "%d", port);
 419
 420                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 421 #ifdef NEW_LOGGING
 422                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 423                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 424                                    AC_GAI_STRERROR(err) ));
 425 #else
 426                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 427                                 AC_GAI_STRERROR(err), 0, 0);
 428 #endif
 429                         return -1;
 430                 }
 431
 432                 sai = res;
 433                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 434                         /* EMPTY */ ;
 435                 }
 436                 *sal = ch_calloc(n, sizeof(void *));
 437                 if (*sal == NULL) {
 438                         return -1;
 439                 }
 440
 441                 sap = *sal;
 442                 *sap = NULL;
 443
 444                 for ( sai=res; sai; sai=sai->ai_next ) {
 445                         if( sai->ai_addr == NULL ) {
 446 #ifdef NEW_LOGGING
 447                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 448                                         "slap_get_listener_addresses: "
 449                                         "getaddrinfo ai_addr is NULL?\n" ));
 450 #else
 451                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 452                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 453 #endif
 454                                 freeaddrinfo(res);
 455                                 goto errexit;
 456                         }
 457
 458                         switch (sai->ai_family) {
 459 #  ifdef LDAP_PF_INET6
 460                         case AF_INET6:
 461                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 462                                 if (*sap == NULL) {
 463                                         freeaddrinfo(res);
 464                                         goto errexit;
 465                                 }
 466                                 *(struct sockaddr_in6 *)*sap =
 467                                         *((struct sockaddr_in6 *)sai->ai_addr);
 468                                 break;
 469 #  endif
 470                         case AF_INET:
 471                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 472                                 if (*sap == NULL) {
 473                                         freeaddrinfo(res);
 474                                         goto errexit;
 475                                 }
 476                                 *(struct sockaddr_in *)*sap =
 477                                         *((struct sockaddr_in *)sai->ai_addr);
 478                                 break;
 479                         default:
 480                                 *sap = NULL;
 481                                 break;
 482                         }
 483
 484                         if (*sap != NULL) {
 485                                 (*sap)->sa_family = sai->ai_family;
 486                                 sap++;
 487                                 *sap = NULL;
 488                         }
 489                 }
 490
 491                 freeaddrinfo(res);
 492 #else
 493                 int i, n = 1;
 494                 struct in_addr in;
 495                 struct hostent *he = NULL;
 496
 497                 if ( host == NULL ) {
 498                         in.s_addr = htonl(INADDR_ANY);
 499
 500                 } else if ( !inet_aton( host, &in ) ) {
 501                         he = gethostbyname( host );
 502                         if( he == NULL ) {
 503 #ifdef NEW_LOGGING
 504                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 505                                            "slap_get_listener_addresses: invalid host %s\n",
 506                                            host ));
 507 #else
 508                                 Debug( LDAP_DEBUG_ANY,
 509                                        "daemon: invalid host %s", host, 0, 0);
 510 #endif
 511                                 return -1;
 512                         }
 513                         for (n = 0; he->h_addr_list[n]; n++) ;
 514                 }
 515
 516                 *sal = ch_malloc((n+1) * sizeof(void *));
 517                 if (*sal == NULL) {
 518                         return -1;
 519                 }
 520
 521                 sap = *sal;
 522                 for ( i = 0; i<n; i++ ) {
 523                         sap[i] = ch_malloc(sizeof(struct sockaddr_in));
 524                         if (*sap == NULL) {
 525                                 goto errexit;
 526                         }
 527                         (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
 528                         sap[i]->sa_family = AF_INET;
 529                         ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
 530                         if (he) {
 531                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
 532                         } else {
 533                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
 534                         }
 535                 }
 536                 sap[i] = NULL;
 537 #endif
 538         }
 539
 540         return 0;
 541
 542 errexit:
 543         slap_free_listener_addresses(*sal);
 544         return -1;
 545 }
 546
 547 static int slap_open_listener(
 548         const char* url,
 549         int *listeners,
 550         int *cur
 551         )
 552 {
 553         int     num, tmp, rc;
 554         Listener l;
 555         Listener *li;
 556         LDAPURLDesc *lud;
 557         unsigned short port;
 558         int err, addrlen = 0;
 559         struct sockaddr **sal, **psal;
 560         int socktype = SOCK_STREAM;     /* default to COTS */
 561 #ifdef LDAP_PF_LOCAL
 562         mode_t  perms = S_IRWXU;
 563         int     crit = 1;
 564 #endif
 565
 566         rc = ldap_url_parse( url, &lud );
 567
 568         if( rc != LDAP_URL_SUCCESS ) {
 569 #ifdef NEW_LOGGING
 570                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 571                            "slap_open_listener: listen URL \"%s\" parse error %d\n",
 572                            url, rc ));
 573 #else
 574                 Debug( LDAP_DEBUG_ANY,
 575                         "daemon: listen URL \"%s\" parse error=%d\n",
 576                         url, rc, 0 );
 577 #endif
 578                 return rc;
 579         }
 580
 581 #ifndef HAVE_TLS
 582         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 583 #ifdef NEW_LOGGING
 584                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 585                            "slap_open_listener: TLS is not supported (%s)\n",
 586                            url ));
 587 #else
 588                 Debug( LDAP_DEBUG_ANY,
 589                         "daemon: TLS not supported (%s)\n",
 590                         url, 0, 0 );
 591 #endif
 592                 ldap_free_urldesc( lud );
 593                 return -1;
 594         }
 595
 596         if(! lud->lud_port ) {
 597                 lud->lud_port = LDAP_PORT;
 598         }
 599
 600 #else
 601         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 602
 603         if(! lud->lud_port ) {
 604                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 605         }
 606 #endif
 607
 608         port = (unsigned short) lud->lud_port;
 609
 610         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 611         if ( tmp == LDAP_PROTO_IPC ) {
 612 #ifdef LDAP_PF_LOCAL
 613                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 614                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 615                 } else {
 616                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 617                 }
 618
 619                 if ( lud->lud_exts ) {
 620                         err = get_url_perms( lud->lud_exts, &perms, &crit );
 621                 }
 622 #else
 623
 624 #ifdef NEW_LOGGING
 625                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 626                            "slap_open_listener: URL scheme is not supported: %s\n",
 627                            url ));
 628 #else
 629                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 630                         url, 0, 0);
 631 #endif
 632                 ldap_free_urldesc( lud );
 633                 return -1;
 634 #endif
 635         } else {
 636 #ifdef LDAP_CONNECTIONLESS
 637                 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 638 #endif
 639                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 640                         || strcmp(lud->lud_host, "*") == 0 )
 641                 {
 642                         err = slap_get_listener_addresses(NULL, port, &sal);
 643                 } else {
 644                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 645                 }
 646         }
 647
 648         ldap_free_urldesc( lud );
 649         if ( err ) {
 650                 return -1;
 651         }
 652
 653         /* If we got more than one address returned, we need to make space
 654          * for it in the slap_listeners array.
 655          */
 656         for ( num=0; sal[num]; num++ );
 657         if ( num > 1 ) {
 658                 *listeners += num-1;
 659                 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
 660         }
 661
 662         psal = sal;
 663         while ( *sal != NULL ) {
 664                 switch( (*sal)->sa_family ) {
 665                 case AF_INET:
 666 #ifdef LDAP_PF_INET6
 667                 case AF_INET6:
 668 #endif
 669 #ifdef LDAP_PF_LOCAL
 670                 case AF_LOCAL:
 671 #endif
 672                         break;
 673                 default:
 674                         sal++;
 675                         continue;
 676                 }
 677 #ifdef LDAP_CONNECTIONLESS
 678                 if (l.sl_is_udp)
 679                     socktype = SOCK_DGRAM;
 680 #endif
 681                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 682                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 683                         int err = sock_errno();
 684 #ifdef NEW_LOGGING
 685                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 686                                    "slap_open_listener: socket() failed errno=%d (%s)\n",
 687                                    err, sock_errstr(err) ));
 688 #else
 689                         Debug( LDAP_DEBUG_ANY,
 690                                 "daemon: socket() failed errno=%d (%s)\n", err,
 691                                 sock_errstr(err), 0 );
 692 #endif
 693                         sal++;
 694                         continue;
 695                 }
 696 #ifndef HAVE_WINSOCK
 697                 if ( l.sl_sd >= dtblsize ) {
 698 #ifdef NEW_LOGGING
 699                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 700                                    "slap_open_listener: listener descriptor %ld is too great %ld\n",
 701                                    (long)l.sl_sd, (long)dtblsize ));
 702 #else
 703                         Debug( LDAP_DEBUG_ANY,
 704                                "daemon: listener descriptor %ld is too great %ld\n",
 705                                (long) l.sl_sd, (long) dtblsize, 0 );
 706 #endif
 707                         tcp_close( l.sl_sd );
 708                         sal++;
 709                         continue;
 710                 }
 711 #endif
 712 #ifdef LDAP_PF_LOCAL
 713                 if ( (*sal)->sa_family == AF_LOCAL ) {
 714                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 715                 } else
 716 #endif
 717                 {
 718 #ifdef SO_REUSEADDR
 719                         /* enable address reuse */
 720                         tmp = 1;
 721                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 722                                          (char *) &tmp, sizeof(tmp) );
 723                         if ( rc == AC_SOCKET_ERROR ) {
 724                                 int err = sock_errno();
 725 #ifdef NEW_LOGGING
 726                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 727                                            "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) failed errno %d (%s)\n",
 728                                            (long)l.sl_sd, err, sock_errstr(err) ));
 729 #else
 730                                 Debug( LDAP_DEBUG_ANY,
 731                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 732                                        (long) l.sl_sd, err, sock_errstr(err) );
 733 #endif
 734                         }
 735 #endif
 736                 }
 737
 738                 switch( (*sal)->sa_family ) {
 739                 case AF_INET:
 740                         addrlen = sizeof(struct sockaddr_in);
 741                         break;
 742 #ifdef LDAP_PF_INET6
 743                 case AF_INET6:
 744                         addrlen = sizeof(struct sockaddr_in6);
 745                         break;
 746 #endif
 747 #ifdef LDAP_PF_LOCAL
 748                 case AF_LOCAL:
 749                         addrlen = sizeof(struct sockaddr_un);
 750                         break;
 751 #endif
 752                 }
 753
 754                 if (bind(l.sl_sd, *sal, addrlen)) {
 755                         err = sock_errno();
 756 #ifdef NEW_LOGGING
 757                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 758                            "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 759                            (long)l.sl_sd, err, sock_errstr(err) ));
 760 #else
 761                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 762                        (long) l.sl_sd, err, sock_errstr(err) );
 763 #endif
 764                         tcp_close( l.sl_sd );
 765                         sal++;
 766                         continue;
 767                 }
 768
 769         switch ( (*sal)->sa_family ) {
 770 #ifdef LDAP_PF_LOCAL
 771         case AF_LOCAL: {
 772                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 773                 if ( chmod( addr, perms ) < 0 && crit ) {
 774                         int err = sock_errno();
 775 #ifdef NEW_LOGGING
 776                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 777                                    "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 778                                    (long)l.sl_sd, err, sock_errstr(err) ));
 779 #else
 780                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 781                                (long) l.sl_sd, err, sock_errstr(err) );
 782 #endif
 783                         tcp_close( l.sl_sd );
 784                         slap_free_listener_addresses(psal);
 785                         return -1;
 786                 }
 787                 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
 788                 sprintf( l.sl_name, "PATH=%s", addr );
 789         } break;
 790 #endif /* LDAP_PF_LOCAL */
 791
 792         case AF_INET: {
 793                 char *s;
 794 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 795                 char addr[INET_ADDRSTRLEN];
 796                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 797                            addr, sizeof(addr) );
 798                 s = addr;
 799 #else
 800                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 801 #endif
 802                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 803                 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
 804                 sprintf( l.sl_name, "IP=%s:%d",
 805                          s != NULL ? s : "unknown" , port );
 806         } break;
 807
 808 #ifdef LDAP_PF_INET6
 809         case AF_INET6: {
 810                 char addr[INET6_ADDRSTRLEN];
 811                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 812                            addr, sizeof addr);
 813                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 814                 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
 815                 sprintf( l.sl_name, "IP=%s %d", addr, port );
 816         } break;
 817 #endif /* LDAP_PF_INET6 */
 818
 819         default:
 820 #ifdef NEW_LOGGING
 821                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 822                            "slap_open_listener: unsupported address family (%d)\n",
 823                            (int)(*sal)->sa_family ));
 824 #else
 825                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 826                         (int) (*sal)->sa_family, 0, 0 );
 827 #endif
 828                 break;
 829         }
 830
 831         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 832         l.sl_url = ch_strdup( url );
 833         li = ch_malloc( sizeof( Listener ) );
 834         *li = l;
 835         slap_listeners[*cur] = li;
 836         (*cur)++;
 837         sal++;
 838
 839         } /* while ( *sal != NULL ) */
 840
 841         slap_free_listener_addresses(psal);
 842
 843
 844 #ifdef NEW_LOGGING
 845         LDAP_LOG(( "connection", LDAP_LEVEL_RESULTS,
 846                    "slap_open_listener: daemon initialized %s\n", l.sl_url ));
 847 #else
 848         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 849                 l.sl_url, 0, 0 );
 850 #endif
 851         return 0;
 852 }
 853
 854 static int sockinit(void);
 855 static int sockdestroy(void);
 856
 857 int slapd_daemon_init( const char *urls )
 858 {
 859         int i, j, n, rc;
 860         char **u;
 861
 862 #ifdef NEW_LOGGING
 863         LDAP_LOG(( "connection", LDAP_LEVEL_ARGS,
 864                    "slapd_daemon_init: %s\n",
 865                    urls ? urls : "<null>" ));
 866 #else
 867         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 868                 urls ? urls : "<null>", 0, 0 );
 869 #endif
 870         if( (rc = sockinit()) != 0 ) {
 871                 return rc;
 872         }
 873
 874 #ifdef HAVE_SYSCONF
 875         dtblsize = sysconf( _SC_OPEN_MAX );
 876 #elif HAVE_GETDTABLESIZE
 877         dtblsize = getdtablesize();
 878 #else
 879         dtblsize = FD_SETSIZE;
 880 #endif
 881
 882 #ifdef FD_SETSIZE
 883         if(dtblsize > FD_SETSIZE) {
 884                 dtblsize = FD_SETSIZE;
 885         }
 886 #endif  /* !FD_SETSIZE */
 887
 888         /* open a pipe (or something equivalent connected to itself).
 889          * we write a byte on this fd whenever we catch a signal. The main
 890          * loop will be select'ing on this socket, and will wake up when
 891          * this byte arrives.
 892          */
 893         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 894 #ifdef NEW_LOGGING
 895                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 896                            "slap_daemon_init: lutil_pair() failed rc=%d\n", rc ));
 897 #else
 898                 Debug( LDAP_DEBUG_ANY,
 899                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 900 #endif
 901                 return rc;
 902         }
 903
 904         FD_ZERO( &slap_daemon.sd_readers );
 905         FD_ZERO( &slap_daemon.sd_writers );
 906
 907         if( urls == NULL ) {
 908                 urls = "ldap:///";
 909         }
 910
 911         u = str2charray( urls, " " );
 912
 913         if( u == NULL || u[0] == NULL ) {
 914 #ifdef NEW_LOGGING
 915                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 916                            "slap_daemon_init: no urls (%s) provided.\n", urls ));
 917 #else
 918                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
 919                         urls, 0, 0 );
 920 #endif
 921                 return -1;
 922         }
 923
 924         for( i=0; u[i] != NULL; i++ ) {
 925 #ifdef NEW_LOGGING
 926                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 927                            "slap_daemon_init: listen on %s\n.", u[i] ));
 928 #else
 929                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
 930                         u[i], 0, 0 );
 931 #endif
 932         }
 933
 934         if( i == 0 ) {
 935 #ifdef NEW_LOGGING
 936                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 937                            "slap_daemon_init: no listeners to open (%s)\n", urls ));
 938 #else
 939                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
 940                         urls, 0, 0 );
 941 #endif
 942                 charray_free( u );
 943                 return -1;
 944         }
 945
 946 #ifdef NEW_LOGGING
 947         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 948                    "slap_daemon_init: %d listeners to open...\n", i ));
 949 #else
 950         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
 951                 i, 0, 0 );
 952 #endif
 953         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
 954
 955         for(n = 0, j = 0; u[n]; n++ ) {
 956                 if ( slap_open_listener( u[n], &i, &j ) ) {
 957                         charray_free( u );
 958                         return -1;
 959                 }
 960         }
 961         slap_listeners[j] = NULL;
 962
 963 #ifdef NEW_LOGGING
 964         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 965                    "slap_daemon_init: %d listeners opened\n", i ));
 966 #else
 967         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
 968                 i, 0, 0 );
 969 #endif
 970
 971 #ifdef HAVE_SLP
 972         slapd_slp_init( urls );
 973         slapd_slp_reg();
 974 #endif
 975
 976         charray_free( u );
 977         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
 978         return !i;
 979 }
 980
 981
 982 int
 983 slapd_daemon_destroy(void)
 984 {
 985         connections_destroy();
 986         tcp_close( wake_sds[1] );
 987         tcp_close( wake_sds[0] );
 988         sockdestroy();
 989
 990 #ifdef HAVE_SLP
 991         slapd_slp_dereg();
 992         slapd_slp_deinit();
 993 #endif
 994
 995         return 0;
 996 }
 997
 998
 999 static void
1000 close_listeners(
1001         int remove
1002 )
1003 {
1004         int l;
1005
1006         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1007                 if ( remove )
1008                         slapd_remove( slap_listeners[l]->sl_sd, 0 );
1009                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1010 #ifdef LDAP_PF_LOCAL
1011                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1012                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1013                         }
1014 #endif /* LDAP_PF_LOCAL */
1015                         slapd_close( slap_listeners[l]->sl_sd );
1016                 }
1017                 if ( slap_listeners[l]->sl_url )
1018                         free ( slap_listeners[l]->sl_url );
1019                 if ( slap_listeners[l]->sl_name )
1020                         free ( slap_listeners[l]->sl_name );
1021                 free ( slap_listeners[l] );
1022                 slap_listeners[l] = NULL;
1023         }
1024 }
1025
1026
1027 static void *
1028 slapd_daemon_task(
1029         void *ptr
1030 )
1031 {
1032         int l;
1033         time_t  last_idle_check = 0;
1034         time( &starttime );
1035
1036         if ( global_idletimeout > 0 ) {
1037                 last_idle_check = slap_get_time();
1038         }
1039         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1040                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1041                         continue;
1042 #ifdef LDAP_CONNECTIONLESS
1043                 /* Since this is connectionless, the data port is the
1044                  * listening port. The listen() and accept() calls
1045                  * are unnecessary.
1046                  */
1047                 if ( slap_listeners[l]->sl_is_udp )
1048                 {
1049                         slapd_add( slap_listeners[l]->sl_sd );
1050                         continue;
1051                 }
1052 #endif
1053
1054                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1055                         int err = sock_errno();
1056 #ifdef NEW_LOGGING
1057                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1058                                    "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1059                                    slap_listeners[l]->sl_url, err, sock_errstr(err) ));
1060 #else
1061                         Debug( LDAP_DEBUG_ANY,
1062                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1063                                         slap_listeners[l]->sl_url, err,
1064                                         sock_errstr(err) );
1065 #endif
1066                         return( (void*)-1 );
1067                 }
1068
1069                 slapd_add( slap_listeners[l]->sl_sd );
1070         }
1071
1072 #ifdef HAVE_NT_SERVICE_MANAGER
1073         if ( started_event != NULL ) {
1074                 ldap_pvt_thread_cond_signal( &started_event );
1075         }
1076 #endif
1077         /* initialization complete. Here comes the loop. */
1078
1079         while ( !slapd_shutdown ) {
1080                 ber_socket_t i;
1081                 int ns;
1082                 int at;
1083                 ber_socket_t nfds;
1084 #define SLAPD_EBADF_LIMIT 16
1085                 int ebadf = 0;
1086                 int emfile = 0;
1087
1088 #define SLAPD_IDLE_CHECK_LIMIT 4
1089                 time_t  now;
1090
1091
1092                 fd_set                  readfds;
1093                 fd_set                  writefds;
1094                 Sockaddr                from;
1095
1096 #if defined(SLAPD_RLOOKUPS)
1097                 struct hostent          *hp;
1098 #endif
1099                 struct timeval          zero;
1100                 struct timeval          *tvp;
1101
1102                 if( emfile ) {
1103                         now = slap_get_time();
1104                         connections_timeout_idle( now );
1105                 }
1106                 else if ( global_idletimeout > 0 ) {
1107                         now = slap_get_time();
1108                         if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1109                                 connections_timeout_idle( now );
1110                         }
1111                 }
1112
1113 #ifdef SIGHUP
1114                 if( slapd_gentle_shutdown ) {
1115                         ber_socket_t active;
1116
1117                         if( slapd_gentle_shutdown == 1 ) {
1118                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1119                                 close_listeners( 1 );
1120                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1121                                 slapd_gentle_shutdown = 2;
1122                         }
1123
1124                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1125                         active = slap_daemon.sd_nactives;
1126                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1127                         if( active == 0 ) {
1128                                 slapd_shutdown = 2;
1129                                 break;
1130                         }
1131                 }
1132 #endif
1133
1134                 FD_ZERO( &writefds );
1135                 FD_ZERO( &readfds );
1136
1137                 zero.tv_sec = 0;
1138                 zero.tv_usec = 0;
1139
1140                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1141
1142 #ifdef FD_SET_MANUAL_COPY
1143                 for( s = 0; s < nfds; s++ ) {
1144                         if(FD_ISSET( &slap_sd_readers, s )) {
1145                                 FD_SET( s, &readfds );
1146                         }
1147                         if(FD_ISSET( &slap_sd_writers, s )) {
1148                                 FD_SET( s, &writefds );
1149                         }
1150                 }
1151 #else
1152                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1153                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1154 #endif
1155                 assert(!FD_ISSET(wake_sds[0], &readfds));
1156                 FD_SET( wake_sds[0], &readfds );
1157
1158                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1159                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1160                                 continue;
1161                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1162                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1163                 }
1164
1165 #ifndef HAVE_WINSOCK
1166                 nfds = slap_daemon.sd_nfds;
1167 #else
1168                 nfds = dtblsize;
1169 #endif
1170
1171                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1172
1173                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1174
1175 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1176                 tvp = NULL;
1177 #else
1178                 tvp = at ? &zero : NULL;
1179 #endif
1180
1181                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1182                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1183                                 continue;
1184
1185 #ifdef NEW_LOGGING
1186                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1187                                    "slapd_daemon_task: select: listen=%d active_threads=%d tvp=%s\n",
1188                                    slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" ));
1189 #else
1190                         Debug( LDAP_DEBUG_CONNS,
1191                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1192                                         slap_listeners[l]->sl_sd, at,
1193                                         tvp == NULL ? "NULL" : "zero" );
1194 #endif
1195                 }
1196
1197                 switch(ns = select( nfds, &readfds,
1198 #ifdef HAVE_WINSOCK
1199                         /* don't pass empty fd_set */
1200                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1201 #else
1202                         &writefds,
1203 #endif
1204                         NULL, tvp ))
1205                 {
1206                 case -1: {      /* failure - try again */
1207                                 int err = sock_errno();
1208
1209                                 if( err == EBADF
1210 #ifdef WSAENOTSOCK
1211                                         /* you'd think this would be EBADF */
1212                                         || err == WSAENOTSOCK
1213 #endif
1214                                 ) {
1215                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1216                                                 continue;
1217                                 }
1218
1219                                 if( err != EINTR ) {
1220 #ifdef NEW_LOGGING
1221                                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1222                                                    "slapd_daemon_task: select failed (%d): %s\n",
1223                                                    err, sock_errstr(err) ));
1224 #else
1225                                         Debug( LDAP_DEBUG_CONNS,
1226                                                 "daemon: select failed (%d): %s\n",
1227                                                 err, sock_errstr(err), 0 );
1228 #endif
1229                                         slapd_shutdown = 2;
1230                                 }
1231                         }
1232                         continue;
1233
1234                 case 0:         /* timeout - let threads run */
1235                         ebadf = 0;
1236 #ifdef NEW_LOGGING
1237                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1238                                    "slapd_daemon_task: select timeout - yielding\n" ));
1239 #else
1240                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1241                             0, 0, 0 );
1242 #endif
1243                         ldap_pvt_thread_yield();
1244                         continue;
1245
1246                 default:        /* something happened - deal with it */
1247                         if( slapd_shutdown ) continue;
1248
1249                         ebadf = 0;
1250 #ifdef NEW_LOGGING
1251                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1252                                    "slapd_daemon_task: activity on %d descriptors\n", ns ));
1253 #else
1254                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1255                                 ns, 0, 0 );
1256 #endif
1257                         /* FALL THRU */
1258                 }
1259
1260                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1261                         char c[BUFSIZ];
1262                         tcp_read( wake_sds[0], c, sizeof(c) );
1263 #ifdef NO_THREADS
1264                         waking = 0;
1265 #endif
1266                         continue;
1267                 }
1268
1269                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1270                         ber_socket_t s;
1271                         socklen_t len = sizeof(from);
1272                         long id;
1273                         slap_ssf_t ssf = 0;
1274                         char *authid = NULL;
1275
1276                         char    *dnsname = NULL;
1277                         char    *peeraddr;
1278 #ifdef LDAP_PF_LOCAL
1279                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1280 #elif defined(LDAP_PF_INET6)
1281                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1282 #else
1283                         char    peername[sizeof("IP=255.255.255.255:65336")];
1284 #endif /* LDAP_PF_LOCAL */
1285
1286                         peername[0] = '\0';
1287
1288                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1289                                 continue;
1290
1291                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1292                                 continue;
1293
1294 #ifdef LDAP_CONNECTIONLESS
1295                         if ( slap_listeners[l]->sl_is_udp )
1296                         {
1297                         /* The first time we receive a query, we set this
1298                          * up as a "connection". It remains open for the life
1299                          * of the slapd.
1300                          */
1301                                 if ( slap_listeners[l]->sl_is_udp < 2 )
1302                                 {
1303                                     id = connection_init(
1304                                         slap_listeners[l]->sl_sd,
1305                                         slap_listeners[l]->sl_url, "", "",
1306                                         slap_listeners[l]->sl_name,
1307                                         2, ssf, authid );
1308                                     slap_listeners[l]->sl_is_udp++;
1309                                 }
1310                                 continue;
1311                         }
1312 #endif
1313
1314                         s = accept( slap_listeners[l]->sl_sd,
1315                                 (struct sockaddr *) &from, &len );
1316                         if ( s == AC_SOCKET_INVALID ) {
1317                                 int err = sock_errno();
1318
1319 #ifdef EMFILE
1320                                 if( err == EMFILE ) {
1321                                         emfile++;
1322                                 } else
1323 #endif
1324 #ifdef ENFILE
1325                                 if( err == ENFILE ) {
1326                                         emfile++;
1327                                 } else
1328 #endif
1329                                 {
1330                                         emfile=0;
1331                                 }
1332
1333                                 if( emfile < 3 ) {
1334 #ifdef NEW_LOGGING
1335                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1336                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1337                                                 (long)slap_listeners[l]->sl_sd, err, sock_errstr(err) ));
1338 #else
1339                                         Debug( LDAP_DEBUG_ANY,
1340                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1341                                             (long) slap_listeners[l]->sl_sd, err,
1342                                             sock_errstr(err) );
1343 #endif
1344                                 } else {
1345                                         /* prevent busy loop */
1346 #  ifdef HAVE_USLEEP
1347                                         if( emfile % 4 == 3 ) usleep( 250 );
1348 #  else
1349                                         if( emfile % 8 == 7 ) sleep( 1 );
1350 #  endif
1351                                 }
1352
1353                                 ldap_pvt_thread_yield();
1354                                 continue;
1355                         }
1356                         emfile = 0;
1357
1358 #ifndef HAVE_WINSOCK
1359                         /* make sure descriptor number isn't too great */
1360                         if ( s >= dtblsize ) {
1361 #ifdef NEW_LOGGING
1362                                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1363                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1364                                    (long)s, (long)dtblsize ));
1365 #else
1366                                 Debug( LDAP_DEBUG_ANY,
1367                                         "daemon: %ld beyond descriptor table size %ld\n",
1368                                         (long) s, (long) dtblsize, 0 );
1369 #endif
1370
1371                                 slapd_close(s);
1372                                 ldap_pvt_thread_yield();
1373                                 continue;
1374                         }
1375 #endif
1376
1377 #ifdef LDAP_DEBUG
1378                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1379
1380                         /* newly accepted stream should not be in any of the FD SETS */
1381                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1382                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1383                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1384
1385                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1386 #endif
1387
1388 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1389 #ifdef LDAP_PF_LOCAL
1390                         /* for IPv4 and IPv6 sockets only */
1391                         if ( from.sa_addr.sa_family != AF_LOCAL )
1392 #endif /* LDAP_PF_LOCAL */
1393                         {
1394                                 int rc;
1395                                 int tmp;
1396 #ifdef SO_KEEPALIVE
1397                                 /* enable keep alives */
1398                                 tmp = 1;
1399                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1400                                         (char *) &tmp, sizeof(tmp) );
1401                                 if ( rc == AC_SOCKET_ERROR ) {
1402                                         int err = sock_errno();
1403 #ifdef NEW_LOGGING
1404                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1405                                                    "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE) failed errno=%d (%s)\n",
1406                                                    (long)s, err, sock_errstr(err) ));
1407 #else
1408                                         Debug( LDAP_DEBUG_ANY,
1409                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1410                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1411 #endif
1412                                 }
1413 #endif
1414 #ifdef TCP_NODELAY
1415                                 /* enable no delay */
1416                                 tmp = 1;
1417                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1418                                         (char *)&tmp, sizeof(tmp) );
1419                                 if ( rc == AC_SOCKET_ERROR ) {
1420                                         int err = sock_errno();
1421 #ifdef NEW_LOGGING
1422                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1423                                                    "slapd_daemon_task: setsockopt( %ld, TCP_NODELAY) failed errno=%d (%s)\n",
1424                                                    (long)s, err, sock_errstr(err) ));
1425 #else
1426                                         Debug( LDAP_DEBUG_ANY,
1427                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1428                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1429 #endif
1430                                 }
1431 #endif
1432                         }
1433 #endif
1434
1435 #ifdef NEW_LOGGING
1436                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1437                                    "slapd_daemon_task: new connection on %ld\n", (long)s ));
1438 #else
1439                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1440                                 (long) s, 0, 0 );
1441 #endif
1442                         switch ( from.sa_addr.sa_family ) {
1443 #  ifdef LDAP_PF_LOCAL
1444                         case AF_LOCAL:
1445                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1446                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1447                                 dnsname = "local";
1448                                 break;
1449 #endif /* LDAP_PF_LOCAL */
1450
1451 #  ifdef LDAP_PF_INET6
1452                         case AF_INET6:
1453                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1454                                 peeraddr = inet_ntoa( *((struct in_addr *)
1455                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1456                                 sprintf( peername, "IP=%s:%d",
1457                                          peeraddr != NULL ? peeraddr : "unknown",
1458                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1459                         } else {
1460                                 char addr[INET6_ADDRSTRLEN];
1461                                 sprintf( peername, "IP=%s %d",
1462                                          inet_ntop( AF_INET6,
1463                                                     &from.sa_in6_addr.sin6_addr,
1464                                                     addr, sizeof addr) ? addr : "unknown",
1465                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1466                         }
1467                         break;
1468 #  endif /* LDAP_PF_INET6 */
1469
1470                         case AF_INET:
1471                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1472                         sprintf( peername, "IP=%s:%d",
1473                                 peeraddr != NULL ? peeraddr : "unknown",
1474                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1475                                 break;
1476
1477                         default:
1478                                 slapd_close(s);
1479                                 continue;
1480                         }
1481
1482                         if ( ( from.sa_addr.sa_family == AF_INET )
1483 #ifdef LDAP_PF_INET6
1484                                 || ( from.sa_addr.sa_family == AF_INET6 )
1485 #endif
1486                         ) {
1487 #ifdef SLAPD_RLOOKUPS
1488                                 if ( use_reverse_lookup ) {
1489 #  ifdef LDAP_PF_INET6
1490                                         if ( from.sa_addr.sa_family == AF_INET6 )
1491                                                 hp = gethostbyaddr(
1492                                                         (char *)&(from.sa_in6_addr.sin6_addr),
1493                                                         sizeof(from.sa_in6_addr.sin6_addr),
1494                                                         AF_INET6 );
1495                                         else
1496 #  endif /* LDAP_PF_INET6 */
1497                                         hp = gethostbyaddr(
1498                                                 (char *) &(from.sa_in_addr.sin_addr),
1499                                                 sizeof(from.sa_in_addr.sin_addr),
1500                                                 AF_INET );
1501                                         dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1502                                 }
1503 #else
1504                                 dnsname = NULL;
1505 #endif /* SLAPD_RLOOKUPS */
1506
1507 #ifdef HAVE_TCPD
1508                                 if ( !hosts_ctl("slapd",
1509                                                 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1510                                                 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1511                                                 STRING_UNKNOWN ))
1512                                 {
1513                                         /* DENY ACCESS */
1514                                         Statslog( LDAP_DEBUG_ANY,
1515                                                 "fd=%ld host access from %s (%s) denied.\n",
1516                                                 (long) s,
1517                                                 dnsname != NULL ? dnsname : "unknown",
1518                                                 peeraddr != NULL ? peeraddr : "unknown",
1519                                                 0, 0 );
1520                                         slapd_close(s);
1521                                         continue;
1522                                 }
1523 #endif /* HAVE_TCPD */
1524                         }
1525
1526                         id = connection_init(s,
1527                                 slap_listeners[l]->sl_url,
1528                                 dnsname != NULL ? dnsname : "unknown",
1529                                 peername,
1530                                 slap_listeners[l]->sl_name,
1531 #ifdef HAVE_TLS
1532                                 slap_listeners[l]->sl_is_tls,
1533 #else
1534                                 0,
1535 #endif
1536                                 ssf,
1537                                 authid );
1538
1539                         if( authid ) ch_free(authid);
1540
1541                         if( id < 0 ) {
1542 #ifdef NEW_LOGGING
1543                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1544                                            "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1545                                            (long)s, peername, slap_listeners[l]->sl_name ));
1546 #else
1547                                 Debug( LDAP_DEBUG_ANY,
1548                                         "daemon: connection_init(%ld, %s, %s) failed.\n",
1549                                         (long) s,
1550                                         peername,
1551                                         slap_listeners[l]->sl_name );
1552 #endif
1553                                 slapd_close(s);
1554                                 continue;
1555                         }
1556
1557                         Statslog( LDAP_DEBUG_STATS,
1558                                 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1559                                 id, (long) s,
1560                                 peername,
1561                                 slap_listeners[l]->sl_name,
1562                                 0 );
1563
1564                         slapd_add( s );
1565                         continue;
1566                 }
1567
1568 #ifdef LDAP_DEBUG
1569 #ifdef NEW_LOGGING
1570                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1571                            "slapd_daemon_task: activity on " ));
1572 #else
1573                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1574 #endif
1575 #ifdef HAVE_WINSOCK
1576                 for ( i = 0; i < readfds.fd_count; i++ ) {
1577 #ifdef NEW_LOGGING
1578                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1579                                    " %d%s", readfds.fd_array[i], "r", 0 ));
1580 #else
1581                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1582                                 readfds.fd_array[i], "r", 0 );
1583 #endif
1584                 }
1585                 for ( i = 0; i < writefds.fd_count; i++ ) {
1586 #ifdef NEW_LOGGING
1587                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1588                                    " %d%s", writefds.fd_array[i], "w" ));
1589 #else
1590                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1591                                 writefds.fd_array[i], "w", 0 );
1592 #endif
1593                 }
1594
1595 #else
1596                 for ( i = 0; i < nfds; i++ ) {
1597                         int     r, w;
1598                         int     is_listener = 0;
1599
1600                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1601                                 if ( i == slap_listeners[l]->sl_sd ) {
1602 #ifdef LDAP_CONNECTIONLESS
1603                                 /* The listener is the data port. Don't
1604                                  * skip it.
1605                                  */
1606                                         if (slap_listeners[l]->sl_is_udp)
1607                                                 continue;
1608 #endif
1609                                         is_listener = 1;
1610                                         break;
1611                                 }
1612                         }
1613                         if ( is_listener ) {
1614                                 continue;
1615                         }
1616                         r = FD_ISSET( i, &readfds );
1617                         w = FD_ISSET( i, &writefds );
1618                         if ( r || w ) {
1619 #ifdef NEW_LOGGING
1620                                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1621                                            " %d%s%s", i,
1622                                            r ? "r" : "", w ? "w" : "" ));
1623 #else
1624                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1625                                     r ? "r" : "", w ? "w" : "" );
1626 #endif
1627                         }
1628                 }
1629 #endif
1630 #ifdef NEW_LOGGING
1631                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "\n" ));
1632 #else
1633                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1634 #endif
1635
1636 #endif
1637
1638                 /* loop through the writers */
1639 #ifdef HAVE_WINSOCK
1640                 for ( i = 0; i < writefds.fd_count; i++ )
1641 #else
1642                 for ( i = 0; i < nfds; i++ )
1643 #endif
1644                 {
1645                         ber_socket_t wd;
1646                         int is_listener = 0;
1647 #ifdef HAVE_WINSOCK
1648                         wd = writefds.fd_array[i];
1649 #else
1650                         if( ! FD_ISSET( i, &writefds ) ) {
1651                                 continue;
1652                         }
1653                         wd = i;
1654 #endif
1655
1656                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1657                                 if ( i == slap_listeners[l]->sl_sd ) {
1658 #ifdef LDAP_CONNECTIONLESS
1659                                         if (slap_listeners[l]->sl_is_udp)
1660                                                 continue;
1661 #endif
1662                                         is_listener = 1;
1663                                         break;
1664                                 }
1665                         }
1666                         if ( is_listener ) {
1667                                 continue;
1668                         }
1669 #ifdef NEW_LOGGING
1670                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1671                                    "slapd_daemon_task: write active on %d\n", wd ));
1672 #else
1673                         Debug( LDAP_DEBUG_CONNS,
1674                                 "daemon: write active on %d\n",
1675                                 wd, 0, 0 );
1676 #endif
1677                         /*
1678                          * NOTE: it is possible that the connection was closed
1679                          * and that the stream is now inactive.
1680                          * connection_write() must valid the stream is still
1681                          * active.
1682                          */
1683
1684                         if ( connection_write( wd ) < 0 ) {
1685                                 FD_CLR( (unsigned) wd, &readfds );
1686                                 slapd_close( wd );
1687                         }
1688                 }
1689
1690 #ifdef HAVE_WINSOCK
1691                 for ( i = 0; i < readfds.fd_count; i++ )
1692 #else
1693                 for ( i = 0; i < nfds; i++ )
1694 #endif
1695                 {
1696                         ber_socket_t rd;
1697                         int is_listener = 0;
1698
1699 #ifdef HAVE_WINSOCK
1700                         rd = readfds.fd_array[i];
1701 #else
1702                         if( ! FD_ISSET( i, &readfds ) ) {
1703                                 continue;
1704                         }
1705                         rd = i;
1706 #endif
1707
1708                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1709                                 if ( rd == slap_listeners[l]->sl_sd ) {
1710 #ifdef LDAP_CONNECTIONLESS
1711                                         if (slap_listeners[l]->sl_is_udp)
1712                                                 continue;
1713 #endif
1714                                         is_listener = 1;
1715                                         break;
1716                                 }
1717                         }
1718                         if ( is_listener ) {
1719                                 continue;
1720                         }
1721
1722 #ifdef NEW_LOGGING
1723                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1724                                    "slapd_daemon_task: read activity on %d\n", rd ));
1725 #else
1726                         Debug ( LDAP_DEBUG_CONNS,
1727                                 "daemon: read activity on %d\n", rd, 0, 0 );
1728 #endif
1729                         /*
1730                          * NOTE: it is possible that the connection was closed
1731                          * and that the stream is now inactive.
1732                          * connection_read() must valid the stream is still
1733                          * active.
1734                          */
1735
1736                         if ( connection_read( rd ) < 0 ) {
1737                                 slapd_close( rd );
1738                         }
1739                 }
1740                 ldap_pvt_thread_yield();
1741         }
1742
1743         if( slapd_shutdown == 1 ) {
1744 #ifdef NEW_LOGGING
1745                 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1746                            "slapd_daemon_task: shutdown requested and initiated.\n"));
1747 #else
1748                 Debug( LDAP_DEBUG_TRACE,
1749                         "daemon: shutdown requested and initiated.\n",
1750                         0, 0, 0 );
1751 #endif
1752
1753         } else if ( slapd_shutdown == 2 ) {
1754 #ifdef HAVE_NT_SERVICE_MANAGER
1755 #ifdef NEW_LOGGING
1756                         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1757                                    "slapd_daemon_task: shutdown initiated by Service Manager.\n"));
1758 #else
1759                         Debug( LDAP_DEBUG_TRACE,
1760                                "daemon: shutdown initiated by Service Manager.\n",
1761                                0, 0, 0);
1762 #endif
1763 #else /* !HAVE_NT_SERVICE_MANAGER */
1764 #ifdef NEW_LOGGING
1765                         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1766                                    "slapd_daemon_task: abnormal condition, shutdown initiated.\n" ));
1767 #else
1768                         Debug( LDAP_DEBUG_TRACE,
1769                                "daemon: abnormal condition, shutdown initiated.\n",
1770                                0, 0, 0 );
1771 #endif
1772 #endif /* !HAVE_NT_SERVICE_MANAGER */
1773         } else {
1774 #ifdef NEW_LOGGING
1775                 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1776                            "slapd_daemon_task: no active streams, shutdown initiated.\n" ));
1777 #else
1778                 Debug( LDAP_DEBUG_TRACE,
1779                        "daemon: no active streams, shutdown initiated.\n",
1780                        0, 0, 0 );
1781 #endif
1782         }
1783
1784         if( slapd_gentle_shutdown != 2 )
1785                 close_listeners ( 0 );
1786         free ( slap_listeners );
1787         slap_listeners = NULL;
1788
1789 #ifdef NEW_LOGGING
1790         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1791                    "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1792                    ldap_pvt_thread_pool_backload(&connection_pool) ));
1793 #else
1794         Debug( LDAP_DEBUG_ANY,
1795             "slapd shutdown: waiting for %d threads to terminate\n",
1796             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1797 #endif
1798         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1799
1800         return NULL;
1801 }
1802
1803
1804 int slapd_daemon( void )
1805 {
1806         int rc;
1807
1808         connections_init();
1809
1810 #define SLAPD_LISTENER_THREAD 1
1811 #if defined( SLAPD_LISTENER_THREAD )
1812         {
1813                 ldap_pvt_thread_t       listener_tid;
1814
1815                 /* listener as a separate THREAD */
1816                 rc = ldap_pvt_thread_create( &listener_tid,
1817                         0, slapd_daemon_task, NULL );
1818
1819                 if ( rc != 0 ) {
1820 #ifdef NEW_LOGGING
1821                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1822                                    "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n", rc ));
1823 #else
1824                         Debug( LDAP_DEBUG_ANY,
1825                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1826 #endif
1827                         return rc;
1828                 }
1829
1830                 /* wait for the listener thread to complete */
1831                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1832         }
1833 #else
1834         /* experimental code */
1835         slapd_daemon_task( NULL );
1836 #endif
1837
1838         return 0;
1839
1840 }
1841
1842 int sockinit(void)
1843 {
1844 #if defined( HAVE_WINSOCK2 )
1845     WORD wVersionRequested;
1846         WSADATA wsaData;
1847         int err;
1848
1849         wVersionRequested = MAKEWORD( 2, 0 );
1850
1851         err = WSAStartup( wVersionRequested, &wsaData );
1852         if ( err != 0 ) {
1853                 /* Tell the user that we couldn't find a usable */
1854                 /* WinSock DLL.                                  */
1855                 return -1;
1856         }
1857
1858         /* Confirm that the WinSock DLL supports 2.0.*/
1859         /* Note that if the DLL supports versions greater    */
1860         /* than 2.0 in addition to 2.0, it will still return */
1861         /* 2.0 in wVersion since that is the version we      */
1862         /* requested.                                        */
1863
1864         if ( LOBYTE( wsaData.wVersion ) != 2 ||
1865                 HIBYTE( wsaData.wVersion ) != 0 )
1866         {
1867             /* Tell the user that we couldn't find a usable */
1868             /* WinSock DLL.                                  */
1869             WSACleanup();
1870             return -1;
1871         }
1872
1873         /* The WinSock DLL is acceptable. Proceed. */
1874 #elif defined( HAVE_WINSOCK )
1875         WSADATA wsaData;
1876         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1877             return -1;
1878         }
1879 #endif
1880         return 0;
1881 }
1882
1883 int sockdestroy(void)
1884 {
1885 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1886         WSACleanup();
1887 #endif
1888         return 0;
1889 }
1890
1891 RETSIGTYPE
1892 slap_sig_shutdown( int sig )
1893 {
1894 #ifdef NEW_LOGGING
1895         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1896                    "slap_sig_shutdown: signal %d\n", sig ));
1897 #else
1898         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1899 #endif
1900
1901         /*
1902          * If the NT Service Manager is controlling the server, we don't
1903          * want SIGBREAK to kill the server. For some strange reason,
1904          * SIGBREAK is generated when a user logs out.
1905          */
1906
1907 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1908         if (is_NT_Service && sig == SIGBREAK)
1909 #ifdef NEW_LOGGING
1910             LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1911                        "slap_sig_shutdown: SIGBREAK ignored.\n" ));
1912 #else
1913             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1914                   0, 0, 0);
1915 #endif
1916         else
1917 #endif
1918 #ifdef SIGHUP
1919         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
1920                 slapd_gentle_shutdown = 1;
1921         else
1922 #endif
1923         slapd_shutdown = 1;
1924
1925         WAKE_LISTENER(1);
1926
1927         /* reinstall self */
1928         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1929 }
1930
1931 RETSIGTYPE
1932 slap_sig_wake( int sig )
1933 {
1934         WAKE_LISTENER(1);
1935
1936         /* reinstall self */
1937         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
1938 }
1939
1940
1941 void slapd_add_internal(ber_socket_t s) {
1942         slapd_add(s);
1943 }
1944
1945 Listener ** slapd_get_listeners(void) {
1946         return slap_listeners;
1947 }