src/statserv.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2013 Index Data
   3  * See the file LICENSE for details.
   4  */
   5
   6 /**
   7  * \file statserv.c
   8  * \brief Implements GFS logic
   9  */
  10
  11 #if HAVE_CONFIG_H
  12 #include <config.h>
  13 #endif
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <string.h>
  18
  19 #ifdef WIN32
  20 #include <process.h>
  21 #include <winsock.h>
  22 #include <direct.h>
  23 #endif
  24
  25 #include <yaz/sc.h>
  26 #include <yaz/tpath.h>
  27
  28 #if HAVE_SYS_TYPES_H
  29 #include <sys/types.h>
  30 #endif
  31 #if HAVE_SYS_WAIT_H
  32 #include <sys/wait.h>
  33 #endif
  34 #if HAVE_UNISTD_H
  35 #include <unistd.h>
  36 #endif
  37 #if HAVE_PWD_H
  38 #include <pwd.h>
  39 #endif
  40
  41 #if YAZ_HAVE_XML2
  42 #include <libxml/parser.h>
  43 #include <libxml/tree.h>
  44 #include <libxml/xinclude.h>
  45 #endif
  46
  47 #if YAZ_POSIX_THREADS
  48 #include <pthread.h>
  49 #endif
  50
  51 #include <fcntl.h>
  52 #include <signal.h>
  53 #include <errno.h>
  54
  55 #include <yaz/comstack.h>
  56 #include <yaz/tcpip.h>
  57 #include <yaz/options.h>
  58 #include <yaz/errno.h>
  59 #ifdef USE_XTIMOSI
  60 #include <yaz/xmosi.h>
  61 #endif
  62 #include <yaz/log.h>
  63 #include "eventl.h"
  64 #include "session.h"
  65 #include <yaz/statserv.h>
  66 #include <yaz/daemon.h>
  67 #include <yaz/yaz-iconv.h>
  68
  69 static IOCHAN pListener = NULL;
  70
  71 static char gfs_root_dir[FILENAME_MAX+1];
  72 static struct gfs_server *gfs_server_list = 0;
  73 static struct gfs_listen *gfs_listen_list = 0;
  74 static NMEM gfs_nmem = 0;
  75
  76 static char *me = "statserver"; /* log prefix */
  77 static char *programname="statserver"; /* full program name */
  78 #ifdef WIN32
  79 DWORD current_control_tls;
  80 static int init_control_tls = 0;
  81 #elif YAZ_POSIX_THREADS
  82 static pthread_key_t current_control_tls;
  83 static int init_control_tls = 0;
  84 #else
  85 static statserv_options_block *current_control_block = 0;
  86 #endif
  87
  88 /*
  89  * default behavior.
  90  */
  91 #define STAT_DEFAULT_LOG_LEVEL "server,session,request"
  92
  93 int check_options(int argc, char **argv);
  94 statserv_options_block control_block = {
  95     1,                          /* dynamic mode */
  96     0,                          /* threaded mode */
  97     0,                          /* one shot (single session) */
  98     "",                         /* no PDUs */
  99     "",                         /* diagnostic output to stderr */
 100     PROTO_Z3950,                /* default application protocol */
 101     900,                        /* idle timeout (seconds) */
 102     64*1024*1024,               /* maximum PDU size (approx.) to allow */
 103     "default-config",           /* configuration name to pass to backend */
 104     "",                         /* set user id */
 105     0,                          /* bend_start handler */
 106     0,                          /* bend_stop handler */
 107     check_options,              /* Default routine, for checking the run-time arguments */
 108     check_ip_tcpd,
 109     "",
 110     0,                          /* default value for inet deamon */
 111     0,                          /* handle (for service, etc) */
 112     0,                          /* bend_init handle */
 113     0,                          /* bend_close handle */
 114 #ifdef WIN32
 115     "Z39.50 Server",            /* NT Service Name */
 116     "Server",                   /* NT application Name */
 117     "",                         /* NT Service Dependencies */
 118     "Z39.50 Server",            /* NT Service Display Name */
 119 #endif /* WIN32 */
 120     "",                         /* PID fname */
 121     0,                          /* background daemon */
 122     "",                         /* SSL certificate filename */
 123     "",                         /* XML config filename */
 124     1                           /* keepalive */
 125 };
 126
 127 static int max_sessions = 0;
 128
 129 static int logbits_set = 0;
 130 static int log_session = 0; /* one-line logs for session */
 131 static int log_sessiondetail = 0; /* more detailed stuff */
 132 static int log_server = 0;
 133
 134 /** get_logbits sets global loglevel bits */
 135 static void get_logbits(int force)
 136 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
 137     if (force || !logbits_set)
 138     {
 139         logbits_set = 1;
 140         log_session = yaz_log_module_level("session");
 141         log_sessiondetail = yaz_log_module_level("sessiondetail");
 142         log_server = yaz_log_module_level("server");
 143     }
 144 }
 145
 146
 147 static int add_listener(char *where, int listen_id);
 148
 149 #if YAZ_HAVE_XML2
 150 static xmlDocPtr xml_config_doc = 0;
 151 #endif
 152
 153 #if YAZ_HAVE_XML2
 154 static xmlNodePtr xml_config_get_root(void)
 155 {
 156     xmlNodePtr ptr = 0;
 157     if (xml_config_doc)
 158     {
 159         ptr = xmlDocGetRootElement(xml_config_doc);
 160         if (!ptr || ptr->type != XML_ELEMENT_NODE ||
 161             strcmp((const char *) ptr->name, "yazgfs"))
 162         {
 163             yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
 164                     control_block.xml_config);
 165             return 0;
 166
 167         }
 168     }
 169     return ptr;
 170 }
 171 #endif
 172
 173 #if YAZ_HAVE_XML2
 174 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
 175 {
 176     unsigned char *cp;
 177     xmlNodePtr p;
 178     int len = 1;  /* start with 1, because of trailing 0 */
 179     unsigned char *str;
 180     int first = 1; /* whitespace lead flag .. */
 181     /* determine length */
 182     for (p = ptr; p; p = p->next)
 183     {
 184         if (p->type == XML_TEXT_NODE)
 185             len += xmlStrlen(p->content);
 186     }
 187     /* now allocate for the string */
 188     str = (unsigned char *) nmem_malloc(n, len);
 189     *str = '\0'; /* so we can use strcat */
 190     for (p = ptr; p; p = p->next)
 191     {
 192         if (p->type == XML_TEXT_NODE)
 193         {
 194             cp = p->content;
 195             if (first)
 196             {
 197                 while(*cp && yaz_isspace(*cp))
 198                     cp++;
 199                 if (*cp)
 200                     first = 0;  /* reset if we got non-whitespace out */
 201             }
 202             strcat((char *)str, (const char *)cp); /* append */
 203         }
 204     }
 205     /* remove trailing whitespace */
 206     cp = strlen((const char *)str) + str;
 207     while (cp != str && yaz_isspace(cp[-1]))
 208         cp--;
 209     *cp = '\0';
 210     /* return resulting string */
 211     return (char *) str;
 212 }
 213 #endif
 214
 215 #if YAZ_HAVE_XML2
 216 static struct gfs_server * gfs_server_new(const char *id)
 217 {
 218     struct gfs_server *n = (struct gfs_server *)
 219         nmem_malloc(gfs_nmem, sizeof(*n));
 220     memcpy(&n->cb, &control_block, sizeof(control_block));
 221     n->next = 0;
 222     n->host = 0;
 223     n->listen_ref = 0;
 224     n->cql_transform = 0;
 225     n->ccl_transform = 0;
 226     n->server_node_ptr = 0;
 227     n->directory = 0;
 228     n->docpath = 0;
 229     n->stylesheet = 0;
 230     n->id = nmem_strdup_null(gfs_nmem, id);
 231     n->retrieval = yaz_retrieval_create();
 232     return n;
 233 }
 234 #endif
 235
 236 #if YAZ_HAVE_XML2
 237 static struct gfs_listen * gfs_listen_new(const char *id,
 238                                           const char *address)
 239 {
 240     struct gfs_listen *n = (struct gfs_listen *)
 241         nmem_malloc(gfs_nmem, sizeof(*n));
 242     if (id)
 243         n->id = nmem_strdup(gfs_nmem, id);
 244     else
 245         n->id = 0;
 246     n->next = 0;
 247     n->address = nmem_strdup(gfs_nmem, address);
 248     return n;
 249 }
 250 #endif
 251
 252 static void gfs_server_chdir(struct gfs_server *gfs)
 253 {
 254     if (gfs_root_dir[0])
 255     {
 256         if (chdir(gfs_root_dir))
 257             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
 258     }
 259     if (gfs->directory)
 260     {
 261         if (chdir(gfs->directory))
 262             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
 263                     gfs->directory);
 264     }
 265 }
 266
 267 int control_association(association *assoc, const char *host, int force_open)
 268 {
 269     char vhost[128], *cp;
 270     if (host)
 271     {
 272         strncpy(vhost, host, 127);
 273         vhost[127] = '\0';
 274         cp = strchr(vhost, ':');
 275         if (cp)
 276             *cp = '\0';
 277         host = vhost;
 278     }
 279     assoc->server = 0;
 280     if (control_block.xml_config[0])
 281     {
 282         struct gfs_server *gfs;
 283         for (gfs = gfs_server_list; gfs; gfs = gfs->next)
 284         {
 285             int listen_match = 0;
 286             int host_match = 0;
 287             if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
 288                 host_match = 1;
 289             if (!gfs->listen_ref ||
 290                 gfs->listen_ref == assoc->client_chan->chan_id)
 291                 listen_match = 1;
 292             if (listen_match && host_match)
 293             {
 294                 if (force_open ||
 295                     (assoc->last_control != &gfs->cb && assoc->backend))
 296                 {
 297                     statserv_setcontrol(assoc->last_control);
 298                     if (assoc->backend && assoc->init)
 299                     {
 300                         gfs_server_chdir(gfs);
 301                         (assoc->last_control->bend_close)(assoc->backend);
 302                     }
 303                     assoc->backend = 0;
 304                     xfree(assoc->init);
 305                     assoc->init = 0;
 306                 }
 307                 assoc->server = gfs;
 308                 assoc->last_control = &gfs->cb;
 309                 statserv_setcontrol(&gfs->cb);
 310
 311                 gfs_server_chdir(gfs);
 312                 break;
 313             }
 314         }
 315         if (!gfs)
 316         {
 317             statserv_setcontrol(0);
 318             assoc->last_control = 0;
 319             return 0;
 320         }
 321     }
 322     else
 323     {
 324         statserv_setcontrol(&control_block);
 325         assoc->last_control = &control_block;
 326     }
 327     yaz_log(YLOG_DEBUG, "server select: config=%s",
 328             assoc->last_control->configname);
 329
 330     assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
 331     assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
 332     cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
 333     return 1;
 334 }
 335
 336 #if YAZ_HAVE_XML2
 337 static void xml_config_read(const char *base_path)
 338 {
 339     struct gfs_server **gfsp = &gfs_server_list;
 340     struct gfs_listen **gfslp = &gfs_listen_list;
 341     xmlNodePtr ptr = xml_config_get_root();
 342
 343     if (!ptr)
 344         return;
 345     for (ptr = ptr->children; ptr; ptr = ptr->next)
 346     {
 347         struct _xmlAttr *attr;
 348         if (ptr->type != XML_ELEMENT_NODE)
 349             continue;
 350         attr = ptr->properties;
 351         if (!strcmp((const char *) ptr->name, "listen"))
 352         {
 353             /*
 354               <listen id="listenerid">tcp:@:9999</listen>
 355             */
 356             const char *id = 0;
 357             const char *address =
 358                 nmem_dup_xml_content(gfs_nmem, ptr->children);
 359             for ( ; attr; attr = attr->next)
 360                 if (!xmlStrcmp(attr->name, BAD_CAST "id")
 361                     && attr->children && attr->children->type == XML_TEXT_NODE)
 362                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 363             if (address)
 364             {
 365                 *gfslp = gfs_listen_new(id, address);
 366                 gfslp = &(*gfslp)->next;
 367                 *gfslp = 0; /* make listener list consistent for search */
 368             }
 369         }
 370         else if (!strcmp((const char *) ptr->name, "server"))
 371         {
 372             xmlNodePtr ptr_server = ptr;
 373             xmlNodePtr ptr;
 374             const char *listenref = 0;
 375             const char *id = 0;
 376             struct gfs_server *gfs;
 377
 378             for ( ; attr; attr = attr->next)
 379                 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
 380                     && attr->children && attr->children->type == XML_TEXT_NODE)
 381                     listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
 382                 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
 383                          && attr->children
 384                          && attr->children->type == XML_TEXT_NODE)
 385                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 386                 else
 387                     yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
 388                             attr->name);
 389             gfs = *gfsp = gfs_server_new(id);
 390             gfs->server_node_ptr = ptr_server;
 391             if (listenref)
 392             {
 393                 int id_no;
 394                 struct gfs_listen *gl = gfs_listen_list;
 395                 for (id_no = 1; gl; gl = gl->next, id_no++)
 396                     if (gl->id && !strcmp(gl->id, listenref))
 397                     {
 398                         gfs->listen_ref = id_no;
 399                         break;
 400                     }
 401                 if (!gl)
 402                     yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
 403                             "config element", listenref);
 404             }
 405             for (ptr = ptr_server->children; ptr; ptr = ptr->next)
 406             {
 407                 if (ptr->type != XML_ELEMENT_NODE)
 408                     continue;
 409                 if (!strcmp((const char *) ptr->name, "host"))
 410                 {
 411                     gfs->host = nmem_dup_xml_content(gfs_nmem,
 412                                                      ptr->children);
 413                 }
 414                 else if (!strcmp((const char *) ptr->name, "config"))
 415                 {
 416                     char fpath[1024];
 417                     strcpy(gfs->cb.configname,
 418                            nmem_dup_xml_content(gfs_nmem, ptr->children));
 419
 420                     if (yaz_filepath_resolve(gfs->cb.configname,
 421                                              base_path, 0, fpath))
 422                         strcpy(gfs->cb.configname, fpath);
 423                 }
 424                 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
 425                 {
 426                     char fpath[1024];
 427                     char *fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
 428                     if (yaz_filepath_resolve(fname, base_path, 0, fpath))
 429                         fname = fpath;
 430
 431                     gfs->cql_transform = cql_transform_open_fname(fname);
 432                     if (!gfs->cql_transform)
 433                     {
 434                         yaz_log(YLOG_FATAL|YLOG_ERRNO,
 435                                 "open CQL transform file '%s'", fname);
 436                         exit(1);
 437                     }
 438                 }
 439                 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
 440                 {
 441                     char *fname, fpath[1024];
 442                     FILE *f;
 443
 444                     fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
 445                     if (yaz_filepath_resolve(fname, base_path, 0, fpath))
 446                         fname = fpath;
 447
 448                     if ((f = fopen(fname, "r")) == 0) {
 449                         yaz_log(YLOG_FATAL, "can't open CCL file '%s'", fname);
 450                         exit(1);
 451                     }
 452                     gfs->ccl_transform = ccl_qual_mk();
 453                     ccl_qual_file (gfs->ccl_transform, f);
 454                     fclose(f);
 455                 }
 456                 else if (!strcmp((const char *) ptr->name, "directory"))
 457                 {
 458                     gfs->directory =
 459                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 460                 }
 461                 else if (!strcmp((const char *) ptr->name, "docpath"))
 462                 {
 463                     gfs->docpath =
 464                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 465                 }
 466                 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
 467                 {
 468                     gfs->cb.maxrecordsize = atoi(
 469                         nmem_dup_xml_content(gfs_nmem, ptr->children));
 470                 }
 471                 else if (!strcmp((const char *) ptr->name, "stylesheet"))
 472                 {
 473                     char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
 474                     gfs->stylesheet = (char *)
 475                         nmem_malloc(gfs_nmem, strlen(s) + 2);
 476                     sprintf(gfs->stylesheet, "/%s", s);
 477                 }
 478                 else if (!strcmp((const char *) ptr->name, "explain"))
 479                 {
 480                     ; /* being processed separately */
 481                 }
 482                 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
 483                 {
 484                     if (base_path)
 485                         yaz_retrieval_set_path(gfs->retrieval, base_path);
 486                     if (yaz_retrieval_configure(gfs->retrieval, ptr))
 487                     {
 488                         yaz_log(YLOG_FATAL, "%s in config %s",
 489                                 yaz_retrieval_get_error(gfs->retrieval),
 490                                 control_block.xml_config);
 491                         exit(1);
 492                     }
 493                 }
 494                 else
 495                 {
 496                     yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
 497                             ptr->name, control_block.xml_config);
 498                     exit(1);
 499                 }
 500             }
 501             gfsp = &(*gfsp)->next;
 502         }
 503     }
 504     *gfsp = 0;
 505 }
 506 #endif
 507
 508 static void xml_config_open(void)
 509 {
 510     WRBUF base_path;
 511     const char *last_p;
 512     const char *fname = control_block.xml_config;
 513     if (!getcwd(gfs_root_dir, FILENAME_MAX))
 514     {
 515         yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
 516         gfs_root_dir[0] = '\0';
 517     }
 518 #ifdef WIN32
 519     init_control_tls = 1;
 520     current_control_tls = TlsAlloc();
 521 #elif YAZ_POSIX_THREADS
 522     init_control_tls = 1;
 523     pthread_key_create(&current_control_tls, 0);
 524 #endif
 525
 526     gfs_nmem = nmem_create();
 527 #if YAZ_HAVE_XML2
 528     if (fname[0] == '\0')
 529         return;
 530
 531     if (!xml_config_doc)
 532     {
 533         xml_config_doc = xmlParseFile(fname);
 534         if (!xml_config_doc)
 535         {
 536             yaz_log(YLOG_FATAL, "Could not parse %s", fname);
 537             exit(1);
 538         }
 539         else
 540         {
 541             int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
 542             if (noSubstitutions == -1)
 543             {
 544                 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
 545                         fname);
 546                 exit(1);
 547             }
 548         }
 549     }
 550     base_path = wrbuf_alloc();
 551     last_p = strrchr(fname,
 552 #ifdef WIN32
 553                      '\\'
 554 #else
 555                      '/'
 556 #endif
 557         );
 558     if (last_p)
 559         wrbuf_write(base_path, fname, last_p - fname);
 560     else
 561         wrbuf_puts(base_path, ".");
 562     xml_config_read(wrbuf_cstr(base_path));
 563     wrbuf_destroy(base_path);
 564 #endif
 565 }
 566
 567 static void xml_config_close(void)
 568 {
 569 #if YAZ_HAVE_XML2
 570     if (xml_config_doc)
 571     {
 572         xmlFreeDoc(xml_config_doc);
 573         xml_config_doc = 0;
 574     }
 575 #endif
 576     gfs_server_list = 0;
 577     nmem_destroy(gfs_nmem);
 578 #ifdef WIN32
 579     if (init_control_tls)
 580         TlsFree(current_control_tls);
 581 #elif YAZ_POSIX_THREADS
 582     if (init_control_tls)
 583         pthread_key_delete(current_control_tls);
 584 #endif
 585 }
 586
 587 static void xml_config_add_listeners(void)
 588 {
 589     struct gfs_listen *gfs = gfs_listen_list;
 590     int id_no;
 591
 592     for (id_no = 1; gfs; gfs = gfs->next, id_no++)
 593     {
 594         if (gfs->address)
 595             add_listener(gfs->address, id_no);
 596     }
 597 }
 598
 599 static void xml_config_bend_start(void)
 600 {
 601     if (control_block.xml_config[0])
 602     {
 603         struct gfs_server *gfs = gfs_server_list;
 604         for (; gfs; gfs = gfs->next)
 605         {
 606             yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
 607                     gfs->cb.configname);
 608             statserv_setcontrol(&gfs->cb);
 609             if (control_block.bend_start)
 610             {
 611                 gfs_server_chdir(gfs);
 612                 (control_block.bend_start)(&gfs->cb);
 613             }
 614         }
 615     }
 616     else
 617     {
 618         yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
 619         statserv_setcontrol(&control_block);
 620         if (control_block.bend_start)
 621             (*control_block.bend_start)(&control_block);
 622     }
 623 }
 624
 625 static void xml_config_bend_stop(void)
 626 {
 627     if (control_block.xml_config[0])
 628     {
 629         struct gfs_server *gfs = gfs_server_list;
 630         for (; gfs; gfs = gfs->next)
 631         {
 632             yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
 633                     gfs->cb.configname);
 634             statserv_setcontrol(&gfs->cb);
 635             if (control_block.bend_stop)
 636                 (control_block.bend_stop)(&gfs->cb);
 637         }
 638     }
 639     else
 640     {
 641         yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
 642         statserv_setcontrol(&control_block);
 643         if (control_block.bend_stop)
 644             (*control_block.bend_stop)(&control_block);
 645     }
 646 }
 647
 648 static void remove_listeners(void);
 649
 650 /*
 651  * handle incoming connect requests.
 652  * The dynamic mode is a bit tricky mostly because we want to avoid
 653  * doing all of the listening and accepting in the parent - it's
 654  * safer that way.
 655  */
 656 #ifdef WIN32
 657
 658 typedef struct _ThreadList ThreadList;
 659
 660 struct _ThreadList
 661 {
 662     HANDLE hThread;
 663     IOCHAN pIOChannel;
 664     ThreadList *pNext;
 665 };
 666
 667 static ThreadList *pFirstThread;
 668 static CRITICAL_SECTION Thread_CritSect;
 669 static BOOL bInitialized = FALSE;
 670
 671 static void ThreadList_Initialize()
 672 {
 673     /* Initialize the critical Sections */
 674     InitializeCriticalSection(&Thread_CritSect);
 675
 676     /* Set the first thraed */
 677     pFirstThread = NULL;
 678
 679     /* we have been initialized */
 680     bInitialized = TRUE;
 681 }
 682
 683 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
 684 {
 685     /* Only one thread can go through this section at a time */
 686     EnterCriticalSection(&Thread_CritSect);
 687
 688     {
 689         /* Lets create our new object */
 690         ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
 691         pNewThread->hThread = hThread;
 692         pNewThread->pIOChannel = pIOChannel;
 693         pNewThread->pNext = pFirstThread;
 694         pFirstThread = pNewThread;
 695
 696         /* Lets let somebody else create a new object now */
 697         LeaveCriticalSection(&Thread_CritSect);
 698     }
 699 }
 700
 701 void statserv_remove(IOCHAN pIOChannel)
 702 {
 703     /* Only one thread can go through this section at a time */
 704     EnterCriticalSection(&Thread_CritSect);
 705
 706     {
 707         ThreadList *pCurrentThread = pFirstThread;
 708         ThreadList *pNextThread;
 709         ThreadList *pPrevThread =NULL;
 710
 711         /* Step through all the threads */
 712         for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
 713         {
 714             /* We only need to compare on the IO Channel */
 715             if (pCurrentThread->pIOChannel == pIOChannel)
 716             {
 717                 /* We have found the thread we want to delete */
 718                 /* First of all reset the next pointers */
 719                 if (pPrevThread == NULL)
 720                     pFirstThread = pCurrentThread->pNext;
 721                 else
 722                     pPrevThread->pNext = pCurrentThread->pNext;
 723
 724                 /* All we need todo now is delete the memory */
 725                 free(pCurrentThread);
 726
 727                 /* No need to look at any more threads */
 728                 pNextThread = NULL;
 729             }
 730             else
 731             {
 732                 /* We need to look at another thread */
 733                 pNextThread = pCurrentThread->pNext;
 734                 pPrevThread = pCurrentThread;
 735             }
 736         }
 737
 738         /* Lets let somebody else remove an object now */
 739         LeaveCriticalSection(&Thread_CritSect);
 740     }
 741 }
 742
 743 /* WIN32 statserv_closedown */
 744 static void statserv_closedown()
 745 {
 746     /* Shouldn't do anything if we are not initialized */
 747     if (bInitialized)
 748     {
 749         int iHandles = 0;
 750         HANDLE *pThreadHandles = NULL;
 751
 752         /* We need to stop threads adding and removing while we */
 753         /* start the closedown process */
 754         EnterCriticalSection(&Thread_CritSect);
 755
 756         {
 757             /* We have exclusive access to the thread stuff now */
 758             /* Y didn't i use a semaphore - Oh well never mind */
 759             ThreadList *pCurrentThread = pFirstThread;
 760
 761             /* Before we do anything else, we need to shutdown the listener */
 762             if (pListener != NULL)
 763                 iochan_destroy(pListener);
 764
 765             for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
 766             {
 767                 /* Just destroy the IOCHAN, that should do the trick */
 768                 iochan_destroy(pCurrentThread->pIOChannel);
 769                 closesocket(pCurrentThread->pIOChannel->fd);
 770
 771                 /* Keep a running count of our handles */
 772                 iHandles++;
 773             }
 774
 775             if (iHandles > 0)
 776             {
 777                 HANDLE *pCurrentHandle ;
 778
 779                 /* Allocate the thread handle array */
 780                 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
 781                 pCurrentHandle = pThreadHandles;
 782
 783                 for (pCurrentThread = pFirstThread;
 784                      pCurrentThread != NULL;
 785                      pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
 786                 {
 787                     /* Just the handle */
 788                     *pCurrentHandle = pCurrentThread->hThread;
 789                 }
 790             }
 791
 792             /* We can now leave the critical section */
 793             LeaveCriticalSection(&Thread_CritSect);
 794         }
 795
 796         /* Now we can really do something */
 797         if (iHandles > 0)
 798         {
 799             yaz_log(log_server, "waiting for %d to die", iHandles);
 800             /* This will now wait, until all the threads close */
 801             WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
 802
 803             /* Free the memory we allocated for the handle array */
 804             free(pThreadHandles);
 805         }
 806
 807         xml_config_bend_stop();
 808         /* No longer require the critical section, since all threads are dead */
 809         DeleteCriticalSection(&Thread_CritSect);
 810     }
 811     xml_config_close();
 812 }
 813
 814 void __cdecl event_loop_thread(IOCHAN iochan)
 815 {
 816     iochan_event_loop(&iochan);
 817 }
 818
 819 /* WIN32 listener */
 820 static void listener(IOCHAN h, int event)
 821 {
 822     COMSTACK line = (COMSTACK) iochan_getdata(h);
 823     IOCHAN parent_chan = line->user;
 824     association *newas;
 825     int res;
 826     HANDLE newHandle;
 827
 828     if (event == EVENT_INPUT)
 829     {
 830         COMSTACK new_line;
 831         IOCHAN new_chan;
 832
 833         if ((res = cs_listen(line, 0, 0)) < 0)
 834         {
 835             yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
 836             return;
 837         }
 838         else if (res == 1)
 839             return; /* incomplete */
 840         yaz_log(YLOG_DEBUG, "listen ok");
 841         new_line = cs_accept(line);
 842         if (!new_line)
 843         {
 844             yaz_log(YLOG_FATAL, "Accept failed.");
 845             return;
 846         }
 847         yaz_log(YLOG_DEBUG, "Accept ok");
 848
 849         if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
 850                                        EVENT_INPUT, parent_chan->chan_id)))
 851         {
 852             yaz_log(YLOG_FATAL, "Failed to create iochan");
 853             iochan_destroy(h);
 854             return;
 855         }
 856
 857         yaz_log(YLOG_DEBUG, "Creating association");
 858         if (!(newas = create_association(new_chan, new_line,
 859                                          control_block.apdufile)))
 860         {
 861             yaz_log(YLOG_FATAL, "Failed to create new assoc.");
 862             iochan_destroy(h);
 863             return;
 864         }
 865         newas->cs_get_mask = EVENT_INPUT;
 866         newas->cs_put_mask = 0;
 867         newas->cs_accept_mask = 0;
 868
 869         yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
 870         iochan_setdata(new_chan, newas);
 871         iochan_settimeout(new_chan, 60);
 872
 873         /* Now what we need todo is create a new thread with this iochan as
 874            the parameter */
 875         newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
 876         if (newHandle == (HANDLE) -1)
 877         {
 878
 879             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
 880             iochan_destroy(h);
 881             return;
 882         }
 883         /* We successfully created the thread, so add it to the list */
 884         statserv_add(newHandle, new_chan);
 885
 886         yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
 887         iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 888     }
 889     else
 890     {
 891         yaz_log(YLOG_FATAL, "Bad event on listener.");
 892         iochan_destroy(h);
 893         return;
 894     }
 895 }
 896
 897 #else /* ! WIN32 */
 898
 899 /* To save having an #ifdef in event_loop we need to
 900    define this empty function
 901 */
 902 void statserv_remove(IOCHAN pIOChannel)
 903 {
 904 }
 905
 906 static void statserv_closedown(void)
 907 {
 908     IOCHAN p;
 909
 910     xml_config_bend_stop();
 911     for (p = pListener; p; p = p->next)
 912     {
 913         iochan_destroy(p);
 914     }
 915     xml_config_close();
 916 }
 917
 918 static void *new_session(void *vp);
 919 static int no_sessions = 0;
 920
 921 /* UNIX listener */
 922 static void listener(IOCHAN h, int event)
 923 {
 924     COMSTACK line = (COMSTACK) iochan_getdata(h);
 925     int res;
 926
 927     if (event == EVENT_INPUT)
 928     {
 929         COMSTACK new_line;
 930         if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
 931                                    control_block.daemon_name)) < 0)
 932         {
 933             yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
 934             return;
 935         }
 936         else if (res == 1)
 937         {
 938             yaz_log(YLOG_WARN, "cs_listen incomplete");
 939             return;
 940         }
 941         new_line = cs_accept(line);
 942         if (!new_line)
 943         {
 944             yaz_log(YLOG_FATAL, "Accept failed.");
 945             iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 946             return;
 947         }
 948
 949         if (control_block.one_shot)
 950             remove_listeners();
 951
 952         yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
 953
 954         no_sessions++;
 955         if (control_block.dynamic)
 956         {
 957             if ((res = fork()) < 0)
 958             {
 959                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
 960                 iochan_destroy(h);
 961                 return;
 962             }
 963             else if (res == 0) /* child */
 964             {
 965                 char nbuf[100];
 966                 IOCHAN pp;
 967
 968                 for (pp = pListener; pp; pp = iochan_getnext(pp))
 969                 {
 970                     COMSTACK l = (COMSTACK)iochan_getdata(pp);
 971                     cs_close(l);
 972                     iochan_destroy(pp);
 973                 }
 974                 sprintf(nbuf, "%s(%d)", me, no_sessions);
 975                 yaz_log_init_prefix(nbuf);
 976                 /* ensure that bend_stop is not called when each child exits -
 977                    only for the main process ..  */
 978                 control_block.bend_stop = 0;
 979             }
 980             else /* parent */
 981             {
 982                 cs_close(new_line);
 983                 return;
 984             }
 985         }
 986
 987         if (control_block.threads)
 988         {
 989 #if YAZ_POSIX_THREADS
 990             pthread_t child_thread;
 991             pthread_create(&child_thread, 0, new_session, new_line);
 992             pthread_detach(child_thread);
 993 #else
 994             new_session(new_line);
 995 #endif
 996         }
 997         else
 998             new_session(new_line);
 999     }
1000     else if (event == EVENT_TIMEOUT)
1001     {
1002         yaz_log(log_server, "Shutting down listener.");
1003         iochan_destroy(h);
1004     }
1005     else
1006     {
1007         yaz_log(YLOG_FATAL, "Bad event on listener.");
1008         iochan_destroy(h);
1009     }
1010 }
1011
1012 static void *new_session(void *vp)
1013 {
1014     const char *a;
1015     association *newas;
1016     IOCHAN new_chan;
1017     COMSTACK new_line = (COMSTACK) vp;
1018     IOCHAN parent_chan = (IOCHAN) new_line->user;
1019
1020     unsigned cs_get_mask, cs_accept_mask, mask =
1021         ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
1022         ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
1023
1024     if (mask)
1025     {
1026         cs_accept_mask = mask;  /* accept didn't complete */
1027         cs_get_mask = 0;
1028     }
1029     else
1030     {
1031         cs_accept_mask = 0;     /* accept completed.  */
1032         cs_get_mask = mask = EVENT_INPUT;
1033     }
1034
1035     if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1036                                    parent_chan->chan_id)))
1037     {
1038         yaz_log(YLOG_FATAL, "Failed to create iochan");
1039         return 0;
1040     }
1041     if (!(newas = create_association(new_chan, new_line,
1042                                      control_block.apdufile)))
1043     {
1044         yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1045         return 0;
1046     }
1047     newas->cs_accept_mask = cs_accept_mask;
1048     newas->cs_get_mask = cs_get_mask;
1049
1050     iochan_setdata(new_chan, newas);
1051     iochan_settimeout(new_chan, 60);
1052 #if 1
1053     a = cs_addrstr(new_line);
1054 #else
1055     a = 0;
1056 #endif
1057     yaz_log_xml_errors(0, YLOG_WARN);
1058     yaz_log(log_session, "Session - OK %d %s PID=%ld",
1059             no_sessions, a ? a : "[Unknown]", (long) getpid());
1060     if (max_sessions && no_sessions >= max_sessions)
1061         control_block.one_shot = 1;
1062     if (control_block.threads)
1063     {
1064         iochan_event_loop(&new_chan);
1065     }
1066     else
1067     {
1068         new_chan->next = pListener;
1069         pListener = new_chan;
1070     }
1071     return 0;
1072 }
1073
1074 /* UNIX */
1075 #endif
1076
1077 static void inetd_connection(int what)
1078 {
1079     COMSTACK line;
1080     IOCHAN chan;
1081     association *assoc;
1082     const char *addr;
1083
1084     if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1085     {
1086         if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1087                                   0)))
1088         {
1089             if ((assoc = create_association(chan, line,
1090                                             control_block.apdufile)))
1091             {
1092                 iochan_setdata(chan, assoc);
1093                 iochan_settimeout(chan, 60);
1094                 addr = cs_addrstr(line);
1095                 yaz_log(log_sessiondetail, "Inetd association from %s",
1096                         addr ? addr : "[UNKNOWN]");
1097                 assoc->cs_get_mask = EVENT_INPUT;
1098             }
1099             else
1100             {
1101                 yaz_log(YLOG_FATAL, "Failed to create association structure");
1102             }
1103             chan->next = pListener;
1104             pListener = chan;
1105         }
1106         else
1107         {
1108             yaz_log(YLOG_FATAL, "Failed to create iochan");
1109         }
1110     }
1111     else
1112     {
1113         yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1114     }
1115 }
1116
1117 /*
1118  * Set up a listening endpoint, and give it to the event-handler.
1119  */
1120 static int add_listener(char *where, int listen_id)
1121 {
1122     COMSTACK l;
1123     void *ap;
1124     IOCHAN lst = NULL;
1125     const char *mode;
1126
1127     if (control_block.dynamic)
1128         mode = "dynamic";
1129     else if (control_block.threads)
1130         mode = "threaded";
1131     else
1132         mode = "static";
1133
1134     yaz_log(log_server, "Adding %s listener on %s id=%d PID=%ld", mode, where,
1135             listen_id, (long) getpid());
1136
1137     l = cs_create_host(where, 2, &ap);
1138     if (!l)
1139     {
1140         yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1141         return -1;
1142     }
1143     if (*control_block.cert_fname)
1144         cs_set_ssl_certificate_file(l, control_block.cert_fname);
1145
1146     if (cs_bind(l, ap, CS_SERVER) < 0)
1147     {
1148         if (cs_errno(l) == CSYSERR)
1149             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1150         else
1151             yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1152                     cs_strerror(l));
1153         cs_close(l);
1154         return -1;
1155     }
1156     if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1157                               EVENT_EXCEPT, listen_id)))
1158     {
1159         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1160         cs_close(l);
1161         return -1;
1162     }
1163     iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1164     l->user = lst;  /* user-defined data for COMSTACK is listener chan */
1165
1166     /* Add listener to chain */
1167     lst->next = pListener;
1168     pListener = lst;
1169     return 0; /* OK */
1170 }
1171
1172 static void remove_listeners(void)
1173 {
1174     IOCHAN l = pListener;
1175     for (; l; l = l->next)
1176         iochan_destroy(l);
1177 }
1178
1179 #ifndef WIN32
1180 /* UNIX only (for windows we don't need to catch the signals) */
1181 static void catchchld(int num)
1182 {
1183     while (waitpid(-1, 0, WNOHANG) > 0)
1184         ;
1185     signal(SIGCHLD, catchchld);
1186 }
1187 #endif
1188
1189 statserv_options_block *statserv_getcontrol(void)
1190 {
1191 #ifdef WIN32
1192     if (init_control_tls)
1193         return (statserv_options_block *) TlsGetValue(current_control_tls);
1194     else
1195         return &control_block;
1196 #elif YAZ_POSIX_THREADS
1197     if (init_control_tls)
1198         return (statserv_options_block *)
1199             pthread_getspecific(current_control_tls);
1200     else
1201         return &control_block;
1202 #else
1203     if (current_control_block)
1204         return current_control_block;
1205     return &control_block;
1206 #endif
1207 }
1208
1209 void statserv_setcontrol(statserv_options_block *block)
1210 {
1211     if (gfs_root_dir[0])
1212     {
1213         if (chdir(gfs_root_dir))
1214             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1215     }
1216 #ifdef WIN32
1217     if (init_control_tls)
1218         TlsSetValue(current_control_tls, block);
1219 #elif YAZ_POSIX_THREADS
1220     if (init_control_tls)
1221         pthread_setspecific(current_control_tls, block);
1222 #else
1223     current_control_block = block;
1224 #endif
1225 }
1226
1227 static void statserv_reset(void)
1228 {
1229 }
1230
1231 static void daemon_handler(void *data)
1232 {
1233     IOCHAN *pListener = data;
1234     iochan_event_loop(pListener);
1235 }
1236
1237 #ifndef WIN32
1238 static void normal_stop_handler(int num)
1239 {
1240     yaz_log(log_server, "Received SIGTERM. PID=%ld", (long) getpid());
1241     exit(0);
1242 }
1243 #endif
1244
1245 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1246 {
1247     char sep;
1248 #ifdef WIN32
1249     /* We need to initialize the thread list */
1250     ThreadList_Initialize();
1251 /* WIN32 */
1252 #endif
1253
1254
1255 #ifdef WIN32
1256     sep = '\\';
1257 #else
1258     sep = '/';
1259 #endif
1260     if ((me = strrchr(argv[0], sep)))
1261         me++; /* get the basename */
1262     else
1263         me = argv[0];
1264     programname = argv[0];
1265
1266     if (control_block.options_func(argc, argv))
1267         return 1;
1268
1269     xml_config_open();
1270
1271     xml_config_bend_start();
1272
1273     if (control_block.inetd)
1274     {
1275 #ifdef WIN32
1276         ; /* no inetd on Windows */
1277 #else
1278         inetd_connection(control_block.default_proto);
1279 #endif
1280     }
1281     else
1282     {
1283         xml_config_add_listeners();
1284
1285         if (!pListener)
1286             add_listener("tcp:@:9999", 0);
1287
1288 #ifndef WIN32
1289         if (control_block.dynamic)
1290             signal(SIGCHLD, catchchld);
1291 #endif
1292     }
1293     if (pListener == NULL)
1294         return 1;
1295     if (s)
1296         yaz_sc_running(s);
1297
1298 #ifndef WIN32
1299     signal(SIGTERM, normal_stop_handler);
1300 #endif
1301     yaz_daemon(programname,
1302                (control_block.background ? YAZ_DAEMON_FORK : 0),
1303                daemon_handler, &pListener,
1304                *control_block.pid_fname ? control_block.pid_fname : 0,
1305                *control_block.setuid ? control_block.setuid : 0);
1306     return 0;
1307 }
1308
1309 static void option_copy(char *dst, const char *src)
1310 {
1311     strncpy(dst, src ? src : "", BEND_NAME_MAX-1);
1312     dst[BEND_NAME_MAX-1] = '\0';
1313 }
1314
1315 int check_options(int argc, char **argv)
1316 {
1317     int ret = 0, r;
1318     char *arg;
1319
1320     yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1321
1322     get_logbits(1);
1323
1324     while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:",
1325                           argv, argc, &arg)) != -2)
1326     {
1327         switch (ret)
1328         {
1329         case 0:
1330             if (add_listener(arg, 0))
1331                 return 1;  /* failed to create listener */
1332             break;
1333         case '1':
1334             control_block.one_shot = 1;
1335             control_block.dynamic = 0;
1336             break;
1337         case 'z':
1338             control_block.default_proto = PROTO_Z3950;
1339             break;
1340         case 's':
1341             fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1342             exit(1);
1343             break;
1344         case 'S':
1345             control_block.dynamic = 0;
1346             break;
1347         case 'T':
1348 #if YAZ_POSIX_THREADS
1349             control_block.dynamic = 0;
1350             control_block.threads = 1;
1351 #else
1352             fprintf(stderr, "%s: Threaded mode not available.\n", me);
1353             return 1;
1354 #endif
1355             break;
1356         case 'l':
1357             option_copy(control_block.logfile, arg);
1358             yaz_log_init_file(control_block.logfile);
1359             break;
1360         case 'm':
1361             if (!arg) {
1362                 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1363                 return(1);
1364             }
1365             yaz_log_time_format(arg);
1366             break;
1367         case 'v':
1368             yaz_log_init_level(yaz_log_mask_str(arg));
1369             get_logbits(1);
1370             break;
1371         case 'a':
1372             option_copy(control_block.apdufile, arg);
1373             break;
1374         case 'u':
1375             option_copy(control_block.setuid, arg);
1376             break;
1377         case 'c':
1378             option_copy(control_block.configname, arg);
1379             break;
1380         case 'C':
1381             option_copy(control_block.cert_fname, arg);
1382             break;
1383         case 'd':
1384             option_copy(control_block.daemon_name, arg);
1385             break;
1386         case 't':
1387             if (!arg || !(r = atoi(arg)))
1388             {
1389                 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1390                 return(1);
1391             }
1392             control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1393             break;
1394         case  'k':
1395             if (!arg || !(r = atoi(arg)))
1396             {
1397                 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1398                 return(1);
1399             }
1400             control_block.maxrecordsize = r * 1024;
1401             break;
1402         case 'K':
1403             control_block.keepalive = 0;
1404             break;
1405         case 'i':
1406             control_block.inetd = 1;
1407             break;
1408         case 'w':
1409             if (chdir(arg))
1410             {
1411                 perror(arg);
1412                 return 1;
1413             }
1414             break;
1415         case 'A':
1416             max_sessions = atoi(arg);
1417             break;
1418         case 'p':
1419             option_copy(control_block.pid_fname, arg);
1420             break;
1421         case 'f':
1422 #if YAZ_HAVE_XML2
1423             option_copy(control_block.xml_config, arg);
1424 #else
1425             fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1426             exit(1);
1427 #endif
1428             break;
1429         case 'D':
1430             control_block.background = 1;
1431             break;
1432         case 'r':
1433             if (!arg || !(r = atoi(arg)))
1434             {
1435                 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1436                 return(1);
1437             }
1438             yaz_log_init_max_size(r * 1024);
1439             break;
1440         default:
1441             fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1442                     " -l <logfile> -u <user> -c <config> -t <minutes>"
1443                     " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1444                     " -zKiDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1445             return 1;
1446         }
1447     }
1448     return 0;
1449 }
1450
1451 void statserv_sc_stop(yaz_sc_t s)
1452 {
1453     statserv_closedown();
1454     statserv_reset();
1455 }
1456
1457 int statserv_main(int argc, char **argv,
1458                   bend_initresult *(*bend_init)(bend_initrequest *r),
1459                   void (*bend_close)(void *handle))
1460 {
1461     int ret;
1462     struct statserv_options_block *cb = &control_block;
1463
1464     /* control block does not have service_name member on Unix */
1465     yaz_sc_t s = yaz_sc_create(
1466 #ifdef WIN32
1467         cb->service_name, cb->service_display_name
1468 #else
1469         0, 0
1470 #endif
1471         );
1472
1473     cb->bend_init = bend_init;
1474     cb->bend_close = bend_close;
1475
1476     ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1477     yaz_sc_destroy(&s);
1478     return ret;
1479 }
1480
1481 /*
1482  * Local variables:
1483  * c-basic-offset: 4
1484  * c-file-style: "Stroustrup"
1485  * indent-tabs-mode: nil
1486  * End:
1487  * vim: shiftwidth=4 tabstop=8 expandtab
1488  */
1489