src/statserv.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 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     return ptr;
 169 }
 170 #endif
 171
 172 #if YAZ_HAVE_XML2
 173 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
 174 {
 175     unsigned char *cp;
 176     xmlNodePtr p;
 177     int len = 1;  /* start with 1, because of trailing 0 */
 178     unsigned char *str;
 179     int first = 1; /* whitespace lead flag .. */
 180     /* determine length */
 181     for (p = ptr; p; p = p->next)
 182     {
 183         if (p->type == XML_TEXT_NODE)
 184             len += xmlStrlen(p->content);
 185     }
 186     /* now allocate for the string */
 187     str = (unsigned char *) nmem_malloc(n, len);
 188     *str = '\0'; /* so we can use strcat */
 189     for (p = ptr; p; p = p->next)
 190     {
 191         if (p->type == XML_TEXT_NODE)
 192         {
 193             cp = p->content;
 194             if (first)
 195             {
 196                 while(*cp && yaz_isspace(*cp))
 197                     cp++;
 198                 if (*cp)
 199                     first = 0;  /* reset if we got non-whitespace out */
 200             }
 201             strcat((char *)str, (const char *)cp); /* append */
 202         }
 203     }
 204     /* remove trailing whitespace */
 205     cp = strlen((const char *)str) + str;
 206     while (cp != str && yaz_isspace(cp[-1]))
 207         cp--;
 208     *cp = '\0';
 209     /* return resulting string */
 210     return (char *) str;
 211 }
 212 #endif
 213
 214 #if YAZ_HAVE_XML2
 215 static struct gfs_server * gfs_server_new(const char *id)
 216 {
 217     struct gfs_server *n = (struct gfs_server *)
 218         nmem_malloc(gfs_nmem, sizeof(*n));
 219     memcpy(&n->cb, &control_block, sizeof(control_block));
 220     n->next = 0;
 221     n->host = 0;
 222     n->listen_ref = 0;
 223     n->cql_transform = 0;
 224     n->ccl_transform = 0;
 225     n->server_node_ptr = 0;
 226     n->directory = 0;
 227     n->docpath = 0;
 228     n->stylesheet = 0;
 229     n->client_query_charset = 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                 listen_match = 1;
 291             else
 292             {
 293                 int i;
 294                 for (i = 0; gfs->listen_ref[i] != -1; i++)
 295                     if (gfs->listen_ref[i] == assoc->client_chan->chan_id)
 296                         listen_match = 1;
 297             }
 298             if (listen_match && host_match)
 299             {
 300                 if (force_open ||
 301                     (assoc->last_control != &gfs->cb && assoc->backend))
 302                 {
 303                     statserv_setcontrol(assoc->last_control);
 304                     if (assoc->backend && assoc->init)
 305                     {
 306                         gfs_server_chdir(gfs);
 307                         (assoc->last_control->bend_close)(assoc->backend);
 308                     }
 309                     assoc->backend = 0;
 310                     xfree(assoc->init);
 311                     assoc->init = 0;
 312                 }
 313                 assoc->server = gfs;
 314                 assoc->last_control = &gfs->cb;
 315                 statserv_setcontrol(&gfs->cb);
 316
 317                 gfs_server_chdir(gfs);
 318                 break;
 319             }
 320         }
 321         if (!gfs)
 322         {
 323             statserv_setcontrol(0);
 324             assoc->last_control = 0;
 325             return 0;
 326         }
 327     }
 328     else
 329     {
 330         statserv_setcontrol(&control_block);
 331         assoc->last_control = &control_block;
 332     }
 333     yaz_log(YLOG_DEBUG, "server select: config=%s",
 334             assoc->last_control->configname);
 335
 336     assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
 337     assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
 338     cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
 339     return 1;
 340 }
 341
 342 #if YAZ_HAVE_XML2
 343 static void xml_config_read(const char *base_path)
 344 {
 345     struct gfs_server **gfsp = &gfs_server_list;
 346     struct gfs_listen **gfslp = &gfs_listen_list;
 347     xmlNodePtr ptr = xml_config_get_root();
 348
 349     if (!ptr)
 350         return;
 351     for (ptr = ptr->children; ptr; ptr = ptr->next)
 352     {
 353         struct _xmlAttr *attr;
 354         if (ptr->type != XML_ELEMENT_NODE)
 355             continue;
 356         attr = ptr->properties;
 357         if (!strcmp((const char *) ptr->name, "listen"))
 358         {
 359             /*
 360               <listen id="listenerid">tcp:@:9999</listen>
 361             */
 362             const char *id = 0;
 363             const char *address =
 364                 nmem_dup_xml_content(gfs_nmem, ptr->children);
 365             for ( ; attr; attr = attr->next)
 366                 if (!xmlStrcmp(attr->name, BAD_CAST "id")
 367                     && attr->children && attr->children->type == XML_TEXT_NODE)
 368                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 369             if (address)
 370             {
 371                 *gfslp = gfs_listen_new(id, address);
 372                 gfslp = &(*gfslp)->next;
 373                 *gfslp = 0; /* make listener list consistent for search */
 374             }
 375         }
 376         else if (!strcmp((const char *) ptr->name, "server"))
 377         {
 378             xmlNodePtr ptr_server = ptr;
 379             xmlNodePtr ptr;
 380             const char *listenref = 0;
 381             const char *id = 0;
 382             struct gfs_server *gfs;
 383
 384             for ( ; attr; attr = attr->next)
 385                 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
 386                     && attr->children && attr->children->type == XML_TEXT_NODE)
 387                     listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
 388                 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
 389                          && attr->children
 390                          && attr->children->type == XML_TEXT_NODE)
 391                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 392                 else
 393                     yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
 394                             attr->name);
 395             gfs = *gfsp = gfs_server_new(id);
 396             gfs->server_node_ptr = ptr_server;
 397             if (listenref)
 398             {
 399                 char **refs;
 400                 int num, i;
 401                 nmem_strsplit(gfs_nmem, ",", listenref, &refs, &num);
 402                 gfs->listen_ref = (int*) nmem_malloc(gfs_nmem,
 403                                                      sizeof(int) * (num + 1));
 404                 for (i = 0; i < num; i++)
 405                 {
 406                     int id_no;
 407                     struct gfs_listen *gl = gfs_listen_list;
 408                     gfs->listen_ref[i] = 0;
 409                     for (id_no = 1; gl; gl = gl->next, id_no++)
 410                         if (gl->id && !strcmp(gl->id, refs[i]))
 411                         {
 412                             gfs->listen_ref[i] = id_no;
 413                             break;
 414                         }
 415                     if (!gl)
 416                         yaz_log(YLOG_WARN, "Non-existent listenref '%s' "
 417                                 "in server config element", refs[i]);
 418                 }
 419                 gfs->listen_ref[i] = -1;
 420             }
 421             for (ptr = ptr_server->children; ptr; ptr = ptr->next)
 422             {
 423                 if (ptr->type != XML_ELEMENT_NODE)
 424                     continue;
 425                 if (!strcmp((const char *) ptr->name, "host"))
 426                 {
 427                     gfs->host = nmem_dup_xml_content(gfs_nmem,
 428                                                      ptr->children);
 429                 }
 430                 else if (!strcmp((const char *) ptr->name, "config"))
 431                 {
 432                     char fpath[1024];
 433                     strcpy(gfs->cb.configname,
 434                            nmem_dup_xml_content(gfs_nmem, ptr->children));
 435
 436                     if (yaz_filepath_resolve(gfs->cb.configname,
 437                                              base_path, 0, fpath))
 438                         strcpy(gfs->cb.configname, fpath);
 439                 }
 440                 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
 441                 {
 442                     char fpath[1024];
 443                     char *fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
 444                     if (yaz_filepath_resolve(fname, base_path, 0, fpath))
 445                         fname = fpath;
 446
 447                     gfs->cql_transform = cql_transform_open_fname(fname);
 448                     if (!gfs->cql_transform)
 449                     {
 450                         yaz_log(YLOG_FATAL|YLOG_ERRNO,
 451                                 "open CQL transform file '%s'", fname);
 452                         exit(1);
 453                     }
 454                 }
 455                 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
 456                 {
 457                     char *fname, fpath[1024];
 458                     FILE *f;
 459
 460                     fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
 461                     if (yaz_filepath_resolve(fname, base_path, 0, fpath))
 462                         fname = fpath;
 463
 464                     if ((f = fopen(fname, "r")) == 0) {
 465                         yaz_log(YLOG_FATAL, "can't open CCL file '%s'", fname);
 466                         exit(1);
 467                     }
 468                     gfs->ccl_transform = ccl_qual_mk();
 469                     ccl_qual_file (gfs->ccl_transform, f);
 470                     fclose(f);
 471                 }
 472                 else if (!strcmp((const char *) ptr->name, "directory"))
 473                 {
 474                     gfs->directory =
 475                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 476                 }
 477                 else if (!strcmp((const char *) ptr->name, "docpath"))
 478                 {
 479                     gfs->docpath =
 480                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 481                 }
 482                 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
 483                 {
 484                     gfs->cb.maxrecordsize = atoi(
 485                         nmem_dup_xml_content(gfs_nmem, ptr->children));
 486                 }
 487                 else if (!strcmp((const char *) ptr->name, "stylesheet"))
 488                 {
 489                     char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
 490                     gfs->stylesheet = (char *)
 491                         nmem_malloc(gfs_nmem, strlen(s) + 2);
 492                     sprintf(gfs->stylesheet, "/%s", s);
 493                 }
 494                 else if (!strcmp((const char *) ptr->name,
 495                                  "client_query_charset"))
 496                 {
 497                     gfs->client_query_charset =
 498                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 499                 }
 500                 else if (!strcmp((const char *) ptr->name, "explain"))
 501                 {
 502                     ; /* being processed separately */
 503                 }
 504                 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
 505                 {
 506                     if (base_path)
 507                         yaz_retrieval_set_path(gfs->retrieval, base_path);
 508                     if (yaz_retrieval_configure(gfs->retrieval, ptr))
 509                     {
 510                         yaz_log(YLOG_FATAL, "%s in config %s",
 511                                 yaz_retrieval_get_error(gfs->retrieval),
 512                                 control_block.xml_config);
 513                         exit(1);
 514                     }
 515                 }
 516                 else
 517                 {
 518                     yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
 519                             ptr->name, control_block.xml_config);
 520                     exit(1);
 521                 }
 522             }
 523             gfsp = &(*gfsp)->next;
 524         }
 525     }
 526     *gfsp = 0;
 527 }
 528 #endif
 529
 530 static int xml_config_open(void)
 531 {
 532     const char *last_p;
 533     const char *fname = control_block.xml_config;
 534     if (!getcwd(gfs_root_dir, FILENAME_MAX))
 535     {
 536         yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
 537         gfs_root_dir[0] = '\0';
 538     }
 539 #ifdef WIN32
 540     init_control_tls = 1;
 541     current_control_tls = TlsAlloc();
 542 #elif YAZ_POSIX_THREADS
 543     init_control_tls = 1;
 544     pthread_key_create(&current_control_tls, 0);
 545 #endif
 546
 547     gfs_nmem = nmem_create();
 548 #if YAZ_HAVE_XML2
 549     if (fname[0] == '\0')
 550         return 0;
 551
 552     if (!xml_config_doc)
 553     {
 554         xml_config_doc = xmlParseFile(fname);
 555         if (!xml_config_doc)
 556         {
 557             yaz_log(YLOG_FATAL, "Could not parse %s", fname);
 558             return -1;
 559         }
 560         else
 561         {
 562             int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
 563             if (noSubstitutions == -1)
 564             {
 565                 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
 566                         fname);
 567                 return -1;
 568             }
 569         }
 570     }
 571     last_p = strrchr(fname,
 572 #ifdef WIN32
 573                      '\\'
 574 #else
 575                      '/'
 576 #endif
 577         );
 578     if (last_p)
 579     {
 580         WRBUF base_path = wrbuf_alloc();
 581         wrbuf_write(base_path, fname, last_p - fname);
 582         xml_config_read(wrbuf_cstr(base_path));
 583         wrbuf_destroy(base_path);
 584     }
 585     else
 586         xml_config_read(0);
 587 #endif
 588     return 0;
 589 }
 590
 591 static void xml_config_close(void)
 592 {
 593 #if YAZ_HAVE_XML2
 594     if (xml_config_doc)
 595     {
 596         xmlFreeDoc(xml_config_doc);
 597         xml_config_doc = 0;
 598     }
 599 #endif
 600     gfs_server_list = 0;
 601     nmem_destroy(gfs_nmem);
 602 #ifdef WIN32
 603     if (init_control_tls)
 604         TlsFree(current_control_tls);
 605 #elif YAZ_POSIX_THREADS
 606     if (init_control_tls)
 607         pthread_key_delete(current_control_tls);
 608 #endif
 609 }
 610
 611 static int xml_config_add_listeners(void)
 612 {
 613     struct gfs_listen *gfs = gfs_listen_list;
 614     int id_no;
 615     int ret = 0;
 616
 617     for (id_no = 1; gfs; gfs = gfs->next, id_no++)
 618     {
 619         if (!ret && gfs->address)
 620             ret = add_listener(gfs->address, id_no);
 621     }
 622     return ret;
 623 }
 624
 625 static void xml_config_bend_start(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_start config=%s",
 633                     gfs->cb.configname);
 634             statserv_setcontrol(&gfs->cb);
 635             if (control_block.bend_start)
 636             {
 637                 gfs_server_chdir(gfs);
 638                 (control_block.bend_start)(&gfs->cb);
 639             }
 640         }
 641     }
 642     else
 643     {
 644         yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
 645         statserv_setcontrol(&control_block);
 646         if (control_block.bend_start)
 647             (*control_block.bend_start)(&control_block);
 648     }
 649 }
 650
 651 static void xml_config_bend_stop(void)
 652 {
 653     if (control_block.xml_config[0])
 654     {
 655         struct gfs_server *gfs = gfs_server_list;
 656         for (; gfs; gfs = gfs->next)
 657         {
 658             yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
 659                     gfs->cb.configname);
 660             statserv_setcontrol(&gfs->cb);
 661             if (control_block.bend_stop)
 662                 (control_block.bend_stop)(&gfs->cb);
 663         }
 664     }
 665     else
 666     {
 667         yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
 668         statserv_setcontrol(&control_block);
 669         if (control_block.bend_stop)
 670             (*control_block.bend_stop)(&control_block);
 671     }
 672 }
 673
 674 static void remove_listeners(void);
 675
 676 /*
 677  * handle incoming connect requests.
 678  * The dynamic mode is a bit tricky mostly because we want to avoid
 679  * doing all of the listening and accepting in the parent - it's
 680  * safer that way.
 681  */
 682 #ifdef WIN32
 683
 684 typedef struct _ThreadList ThreadList;
 685
 686 struct _ThreadList
 687 {
 688     HANDLE hThread;
 689     IOCHAN pIOChannel;
 690     ThreadList *pNext;
 691 };
 692
 693 static ThreadList *pFirstThread;
 694 static CRITICAL_SECTION Thread_CritSect;
 695 static BOOL bInitialized = FALSE;
 696
 697 static void ThreadList_Initialize()
 698 {
 699     /* Initialize the critical Sections */
 700     InitializeCriticalSection(&Thread_CritSect);
 701
 702     /* Set the first thraed */
 703     pFirstThread = NULL;
 704
 705     /* we have been initialized */
 706     bInitialized = TRUE;
 707 }
 708
 709 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
 710 {
 711     /* Only one thread can go through this section at a time */
 712     EnterCriticalSection(&Thread_CritSect);
 713
 714     {
 715         /* Lets create our new object */
 716         ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
 717         pNewThread->hThread = hThread;
 718         pNewThread->pIOChannel = pIOChannel;
 719         pNewThread->pNext = pFirstThread;
 720         pFirstThread = pNewThread;
 721
 722         /* Lets let somebody else create a new object now */
 723         LeaveCriticalSection(&Thread_CritSect);
 724     }
 725 }
 726
 727 void statserv_remove(IOCHAN pIOChannel)
 728 {
 729     /* Only one thread can go through this section at a time */
 730     EnterCriticalSection(&Thread_CritSect);
 731
 732     {
 733         ThreadList *pCurrentThread = pFirstThread;
 734         ThreadList *pNextThread;
 735         ThreadList *pPrevThread =NULL;
 736
 737         /* Step through all the threads */
 738         for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
 739         {
 740             /* We only need to compare on the IO Channel */
 741             if (pCurrentThread->pIOChannel == pIOChannel)
 742             {
 743                 /* We have found the thread we want to delete */
 744                 /* First of all reset the next pointers */
 745                 if (pPrevThread == NULL)
 746                     pFirstThread = pCurrentThread->pNext;
 747                 else
 748                     pPrevThread->pNext = pCurrentThread->pNext;
 749
 750                 /* All we need todo now is delete the memory */
 751                 free(pCurrentThread);
 752
 753                 /* No need to look at any more threads */
 754                 pNextThread = NULL;
 755             }
 756             else
 757             {
 758                 /* We need to look at another thread */
 759                 pNextThread = pCurrentThread->pNext;
 760                 pPrevThread = pCurrentThread;
 761             }
 762         }
 763
 764         /* Lets let somebody else remove an object now */
 765         LeaveCriticalSection(&Thread_CritSect);
 766     }
 767 }
 768
 769 /* WIN32 statserv_closedown */
 770 static void statserv_closedown()
 771 {
 772     /* Shouldn't do anything if we are not initialized */
 773     if (bInitialized)
 774     {
 775         int iHandles = 0;
 776         HANDLE *pThreadHandles = NULL;
 777
 778         /* We need to stop threads adding and removing while we */
 779         /* start the closedown process */
 780         EnterCriticalSection(&Thread_CritSect);
 781
 782         {
 783             /* We have exclusive access to the thread stuff now */
 784             /* Y didn't i use a semaphore - Oh well never mind */
 785             ThreadList *pCurrentThread = pFirstThread;
 786
 787             /* Before we do anything else, we need to shutdown the listener */
 788             if (pListener != NULL)
 789                 iochan_destroy(pListener);
 790
 791             for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
 792             {
 793                 /* Just destroy the IOCHAN, that should do the trick */
 794                 iochan_destroy(pCurrentThread->pIOChannel);
 795                 closesocket(pCurrentThread->pIOChannel->fd);
 796
 797                 /* Keep a running count of our handles */
 798                 iHandles++;
 799             }
 800
 801             if (iHandles > 0)
 802             {
 803                 HANDLE *pCurrentHandle ;
 804
 805                 /* Allocate the thread handle array */
 806                 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
 807                 pCurrentHandle = pThreadHandles;
 808
 809                 for (pCurrentThread = pFirstThread;
 810                      pCurrentThread != NULL;
 811                      pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
 812                 {
 813                     /* Just the handle */
 814                     *pCurrentHandle = pCurrentThread->hThread;
 815                 }
 816             }
 817
 818             /* We can now leave the critical section */
 819             LeaveCriticalSection(&Thread_CritSect);
 820         }
 821
 822         /* Now we can really do something */
 823         if (iHandles > 0)
 824         {
 825             yaz_log(log_server, "waiting for %d to die", iHandles);
 826             /* This will now wait, until all the threads close */
 827             WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
 828
 829             /* Free the memory we allocated for the handle array */
 830             free(pThreadHandles);
 831         }
 832
 833         xml_config_bend_stop();
 834         /* No longer require the critical section, since all threads are dead */
 835         DeleteCriticalSection(&Thread_CritSect);
 836     }
 837     xml_config_close();
 838 }
 839
 840 void __cdecl event_loop_thread(IOCHAN iochan)
 841 {
 842     iochan_event_loop(&iochan, 0);
 843 }
 844
 845 /* WIN32 listener */
 846 static void listener(IOCHAN h, int event)
 847 {
 848     COMSTACK line = (COMSTACK) iochan_getdata(h);
 849     IOCHAN parent_chan = line->user;
 850     association *newas;
 851     int res;
 852     HANDLE newHandle;
 853
 854     if (event == EVENT_INPUT)
 855     {
 856         COMSTACK new_line;
 857         IOCHAN new_chan;
 858
 859         if ((res = cs_listen(line, 0, 0)) < 0)
 860         {
 861             yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
 862             return;
 863         }
 864         else if (res == 1)
 865             return; /* incomplete */
 866         yaz_log(YLOG_DEBUG, "listen ok");
 867         new_line = cs_accept(line);
 868         if (!new_line)
 869         {
 870             yaz_log(YLOG_FATAL, "Accept failed.");
 871             return;
 872         }
 873         yaz_log(YLOG_DEBUG, "Accept ok");
 874
 875         if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
 876                                        EVENT_INPUT, parent_chan->chan_id)))
 877         {
 878             yaz_log(YLOG_FATAL, "Failed to create iochan");
 879             iochan_destroy(h);
 880             return;
 881         }
 882
 883         yaz_log(YLOG_DEBUG, "Creating association");
 884         if (!(newas = create_association(new_chan, new_line,
 885                                          control_block.apdufile)))
 886         {
 887             yaz_log(YLOG_FATAL, "Failed to create new assoc.");
 888             iochan_destroy(h);
 889             return;
 890         }
 891         newas->cs_get_mask = EVENT_INPUT;
 892         newas->cs_put_mask = 0;
 893         newas->cs_accept_mask = 0;
 894
 895         yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
 896         iochan_setdata(new_chan, newas);
 897         iochan_settimeout(new_chan, 60);
 898
 899         /* Now what we need todo is create a new thread with this iochan as
 900            the parameter */
 901         newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
 902         if (newHandle == (HANDLE) -1)
 903         {
 904
 905             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
 906             iochan_destroy(h);
 907             return;
 908         }
 909         /* We successfully created the thread, so add it to the list */
 910         statserv_add(newHandle, new_chan);
 911
 912         yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
 913         iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 914     }
 915     else
 916     {
 917         yaz_log(YLOG_FATAL, "Bad event on listener.");
 918         iochan_destroy(h);
 919         return;
 920     }
 921 }
 922
 923 #else /* ! WIN32 */
 924
 925 /* To save having an #ifdef in event_loop we need to
 926    define this empty function
 927 */
 928 void statserv_remove(IOCHAN pIOChannel)
 929 {
 930 }
 931
 932 static void statserv_closedown(void)
 933 {
 934     IOCHAN p;
 935
 936     xml_config_bend_stop();
 937     for (p = pListener; p; p = p->next)
 938     {
 939         iochan_destroy(p);
 940     }
 941     xml_config_close();
 942 }
 943
 944 static void *new_session(void *vp);
 945 static int no_sessions = 0;
 946
 947 /* UNIX listener */
 948 static void listener(IOCHAN h, int event)
 949 {
 950     COMSTACK line = (COMSTACK) iochan_getdata(h);
 951     int res;
 952
 953     if (event == EVENT_INPUT)
 954     {
 955         COMSTACK new_line;
 956         if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
 957                                    control_block.daemon_name)) < 0)
 958         {
 959             yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
 960             return;
 961         }
 962         else if (res == 1)
 963         {
 964             yaz_log(YLOG_WARN, "cs_listen incomplete");
 965             return;
 966         }
 967         new_line = cs_accept(line);
 968         if (!new_line)
 969         {
 970             yaz_log(YLOG_FATAL, "Accept failed.");
 971             iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 972             return;
 973         }
 974
 975         if (control_block.one_shot)
 976             remove_listeners();
 977
 978         yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
 979
 980         no_sessions++;
 981         if (control_block.dynamic)
 982         {
 983             if ((res = fork()) < 0)
 984             {
 985                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
 986                 iochan_destroy(h);
 987                 return;
 988             }
 989             else if (res == 0) /* child */
 990             {
 991                 char nbuf[100];
 992                 IOCHAN pp;
 993
 994                 for (pp = pListener; pp; pp = iochan_getnext(pp))
 995                 {
 996                     COMSTACK l = (COMSTACK)iochan_getdata(pp);
 997                     cs_close(l);
 998                     iochan_destroy(pp);
 999                 }
1000                 sprintf(nbuf, "%s(%d)", me, no_sessions);
1001                 yaz_log_init_prefix(nbuf);
1002                 /* ensure that bend_stop is not called when each child exits -
1003                    only for the main process ..  */
1004                 control_block.bend_stop = 0;
1005             }
1006             else /* parent */
1007             {
1008                 cs_close(new_line);
1009                 return;
1010             }
1011         }
1012
1013         if (control_block.threads)
1014         {
1015 #if YAZ_POSIX_THREADS
1016             pthread_t child_thread;
1017             pthread_create(&child_thread, 0, new_session, new_line);
1018             pthread_detach(child_thread);
1019 #else
1020             new_session(new_line);
1021 #endif
1022         }
1023         else
1024             new_session(new_line);
1025     }
1026     else if (event == EVENT_TIMEOUT)
1027     {
1028         yaz_log(log_server, "Shutting down listener.");
1029         iochan_destroy(h);
1030     }
1031     else
1032     {
1033         yaz_log(YLOG_FATAL, "Bad event on listener.");
1034         iochan_destroy(h);
1035     }
1036 }
1037
1038 static void *new_session(void *vp)
1039 {
1040     const char *a;
1041     association *newas;
1042     IOCHAN new_chan;
1043     COMSTACK new_line = (COMSTACK) vp;
1044     IOCHAN parent_chan = (IOCHAN) new_line->user;
1045
1046     unsigned cs_get_mask, cs_accept_mask, mask =
1047         ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
1048         ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
1049
1050     if (mask)
1051     {
1052         cs_accept_mask = mask;  /* accept didn't complete */
1053         cs_get_mask = 0;
1054     }
1055     else
1056     {
1057         cs_accept_mask = 0;     /* accept completed.  */
1058         cs_get_mask = mask = EVENT_INPUT;
1059     }
1060
1061     if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1062                                    parent_chan->chan_id)))
1063     {
1064         yaz_log(YLOG_FATAL, "Failed to create iochan");
1065         return 0;
1066     }
1067     if (!(newas = create_association(new_chan, new_line,
1068                                      control_block.apdufile)))
1069     {
1070         yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1071         return 0;
1072     }
1073     newas->cs_accept_mask = cs_accept_mask;
1074     newas->cs_get_mask = cs_get_mask;
1075
1076     iochan_setdata(new_chan, newas);
1077     iochan_settimeout(new_chan, 60);
1078 #if 1
1079     a = cs_addrstr(new_line);
1080 #else
1081     a = 0;
1082 #endif
1083     yaz_log_xml_errors(0, YLOG_WARN);
1084     yaz_log(log_session, "Session - OK %d %s PID=%ld",
1085             no_sessions, a ? a : "[Unknown]", (long) getpid());
1086     if (max_sessions && no_sessions >= max_sessions)
1087         control_block.one_shot = 1;
1088     if (control_block.threads)
1089     {
1090         iochan_event_loop(&new_chan, 0);
1091     }
1092     else
1093     {
1094         new_chan->next = pListener;
1095         pListener = new_chan;
1096     }
1097     return 0;
1098 }
1099
1100 /* UNIX */
1101 #endif
1102
1103 static void inetd_connection(int what)
1104 {
1105     COMSTACK line;
1106     IOCHAN chan;
1107     association *assoc;
1108     const char *addr;
1109
1110     if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1111     {
1112         if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1113                                   0)))
1114         {
1115             if ((assoc = create_association(chan, line,
1116                                             control_block.apdufile)))
1117             {
1118                 iochan_setdata(chan, assoc);
1119                 iochan_settimeout(chan, 60);
1120                 addr = cs_addrstr(line);
1121                 yaz_log(log_sessiondetail, "Inetd association from %s",
1122                         addr ? addr : "[UNKNOWN]");
1123                 assoc->cs_get_mask = EVENT_INPUT;
1124             }
1125             else
1126             {
1127                 yaz_log(YLOG_FATAL, "Failed to create association structure");
1128             }
1129             chan->next = pListener;
1130             pListener = chan;
1131         }
1132         else
1133         {
1134             yaz_log(YLOG_FATAL, "Failed to create iochan");
1135         }
1136     }
1137     else
1138     {
1139         yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1140     }
1141 }
1142
1143 /*
1144  * Set up a listening endpoint, and give it to the event-handler.
1145  */
1146 static int add_listener(char *where, int listen_id)
1147 {
1148     COMSTACK l;
1149     void *ap;
1150     IOCHAN lst = NULL;
1151     const char *mode;
1152
1153     if (control_block.dynamic)
1154         mode = "dynamic";
1155     else if (control_block.threads)
1156         mode = "threaded";
1157     else
1158         mode = "static";
1159
1160     yaz_log(log_server, "Adding %s listener on %s id=%d PID=%ld", mode, where,
1161             listen_id, (long) getpid());
1162
1163     l = cs_create_host(where, 2, &ap);
1164     if (!l)
1165     {
1166         yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1167         return -1;
1168     }
1169     if (*control_block.cert_fname)
1170         cs_set_ssl_certificate_file(l, control_block.cert_fname);
1171
1172     if (cs_bind(l, ap, CS_SERVER) < 0)
1173     {
1174         if (cs_errno(l) == CSYSERR)
1175             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1176         else
1177             yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1178                     cs_strerror(l));
1179         cs_close(l);
1180         return -1;
1181     }
1182     if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1183                               EVENT_EXCEPT, listen_id)))
1184     {
1185         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1186         cs_close(l);
1187         return -1;
1188     }
1189     iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1190     l->user = lst;  /* user-defined data for COMSTACK is listener chan */
1191
1192     /* Add listener to chain */
1193     lst->next = pListener;
1194     pListener = lst;
1195     return 0; /* OK */
1196 }
1197
1198 static void remove_listeners(void)
1199 {
1200     IOCHAN l = pListener;
1201     for (; l; l = l->next)
1202         iochan_destroy(l);
1203 }
1204
1205 #ifndef WIN32
1206 /* UNIX only (for windows we don't need to catch the signals) */
1207 static void catchchld(int num)
1208 {
1209     while (waitpid(-1, 0, WNOHANG) > 0)
1210         ;
1211     signal(SIGCHLD, catchchld);
1212 }
1213 #endif
1214
1215 statserv_options_block *statserv_getcontrol(void)
1216 {
1217 #ifdef WIN32
1218     if (init_control_tls)
1219         return (statserv_options_block *) TlsGetValue(current_control_tls);
1220     else
1221         return &control_block;
1222 #elif YAZ_POSIX_THREADS
1223     if (init_control_tls)
1224         return (statserv_options_block *)
1225             pthread_getspecific(current_control_tls);
1226     else
1227         return &control_block;
1228 #else
1229     if (current_control_block)
1230         return current_control_block;
1231     return &control_block;
1232 #endif
1233 }
1234
1235 void statserv_setcontrol(statserv_options_block *block)
1236 {
1237     if (gfs_root_dir[0])
1238     {
1239         if (chdir(gfs_root_dir))
1240             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1241     }
1242 #ifdef WIN32
1243     if (init_control_tls)
1244         TlsSetValue(current_control_tls, block);
1245 #elif YAZ_POSIX_THREADS
1246     if (init_control_tls)
1247         pthread_setspecific(current_control_tls, block);
1248 #else
1249     current_control_block = block;
1250 #endif
1251 }
1252
1253 static void statserv_reset(void)
1254 {
1255 }
1256
1257 static int sig_received = 0;
1258
1259 #ifndef WIN32
1260 static void normal_stop_handler(int num)
1261 {
1262     sig_received = num;
1263 }
1264 #endif
1265
1266 static void daemon_handler(void *data)
1267 {
1268     IOCHAN *pListener = data;
1269     iochan_event_loop(pListener, &sig_received);
1270 }
1271
1272 static void show_version(void)
1273 {
1274     char vstr[20], sha1_str[41];
1275
1276     yaz_version(vstr, sha1_str);
1277     printf("YAZ version: %s %s\n", YAZ_VERSION, YAZ_VERSION_SHA1);
1278     if (strcmp(sha1_str, YAZ_VERSION_SHA1))
1279         printf("YAZ DLL/SO: %s %s\n", vstr, sha1_str);
1280     exit(0);
1281 }
1282
1283 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1284 {
1285     char sep;
1286 #ifdef WIN32
1287     /* We need to initialize the thread list */
1288     ThreadList_Initialize();
1289 /* WIN32 */
1290 #endif
1291
1292
1293 #ifdef WIN32
1294     sep = '\\';
1295 #else
1296     sep = '/';
1297 #endif
1298     if ((me = strrchr(argv[0], sep)))
1299         me++; /* get the basename */
1300     else
1301         me = argv[0];
1302     programname = argv[0];
1303
1304     if (control_block.options_func(argc, argv))
1305         return 1;
1306
1307     if (xml_config_open())
1308         return 1;
1309
1310     xml_config_bend_start();
1311
1312     if (control_block.inetd)
1313     {
1314 #ifdef WIN32
1315         ; /* no inetd on Windows */
1316 #else
1317         inetd_connection(control_block.default_proto);
1318 #endif
1319     }
1320     else
1321     {
1322         if (xml_config_add_listeners())
1323             return 1;
1324
1325         if (!pListener)
1326             add_listener("tcp:@:9999", 0);
1327
1328 #ifndef WIN32
1329         if (control_block.dynamic)
1330             signal(SIGCHLD, catchchld);
1331 #endif
1332     }
1333     if (pListener == NULL)
1334         return 1;
1335     if (s)
1336         yaz_sc_running(s);
1337
1338 #ifndef WIN32
1339     signal(SIGTERM, normal_stop_handler);
1340 #endif
1341     yaz_daemon(programname,
1342                (control_block.background ? YAZ_DAEMON_FORK : 0),
1343                daemon_handler, &pListener,
1344                *control_block.pid_fname ? control_block.pid_fname : 0,
1345                *control_block.setuid ? control_block.setuid : 0);
1346 #ifndef WIN32
1347     if (sig_received)
1348         yaz_log(YLOG_LOG, "Received SIGTERM PID=%ld", (long) getpid());
1349 #endif
1350     return 0;
1351 }
1352
1353 static void option_copy(char *dst, const char *src)
1354 {
1355     strncpy(dst, src ? src : "", BEND_NAME_MAX-1);
1356     dst[BEND_NAME_MAX-1] = '\0';
1357 }
1358
1359 int check_options(int argc, char **argv)
1360 {
1361     int ret = 0, r;
1362     char *arg;
1363
1364     yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1365
1366     get_logbits(1);
1367
1368     while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:V",
1369                           argv, argc, &arg)) != -2)
1370     {
1371         switch (ret)
1372         {
1373         case 0:
1374             if (add_listener(arg, 0))
1375                 return 1;  /* failed to create listener */
1376             break;
1377         case '1':
1378             control_block.one_shot = 1;
1379             control_block.dynamic = 0;
1380             break;
1381         case 'z':
1382             control_block.default_proto = PROTO_Z3950;
1383             break;
1384         case 's':
1385             fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1386             exit(1);
1387             break;
1388         case 'S':
1389             control_block.dynamic = 0;
1390             break;
1391         case 'T':
1392 #if YAZ_POSIX_THREADS
1393             control_block.dynamic = 0;
1394             control_block.threads = 1;
1395 #else
1396             fprintf(stderr, "%s: Threaded mode not available.\n", me);
1397             return 1;
1398 #endif
1399             break;
1400         case 'l':
1401             option_copy(control_block.logfile, arg);
1402             yaz_log_init_file(control_block.logfile);
1403             break;
1404         case 'm':
1405             if (!arg) {
1406                 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1407                 return(1);
1408             }
1409             yaz_log_time_format(arg);
1410             break;
1411         case 'v':
1412             yaz_log_init_level(yaz_log_mask_str(arg));
1413             get_logbits(1);
1414             break;
1415         case 'a':
1416             option_copy(control_block.apdufile, arg);
1417             break;
1418         case 'u':
1419             option_copy(control_block.setuid, arg);
1420             break;
1421         case 'c':
1422             option_copy(control_block.configname, arg);
1423             break;
1424         case 'C':
1425             option_copy(control_block.cert_fname, arg);
1426             break;
1427         case 'd':
1428             option_copy(control_block.daemon_name, arg);
1429             break;
1430         case 't':
1431             if (!arg || !(r = atoi(arg)))
1432             {
1433                 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1434                 return(1);
1435             }
1436             control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1437             break;
1438         case  'k':
1439             if (!arg || !(r = atoi(arg)))
1440             {
1441                 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1442                 return(1);
1443             }
1444             control_block.maxrecordsize = r * 1024;
1445             break;
1446         case 'K':
1447             control_block.keepalive = 0;
1448             break;
1449         case 'i':
1450             control_block.inetd = 1;
1451             break;
1452         case 'w':
1453             if (chdir(arg))
1454             {
1455                 perror(arg);
1456                 return 1;
1457             }
1458             break;
1459         case 'A':
1460             max_sessions = atoi(arg);
1461             break;
1462         case 'p':
1463             option_copy(control_block.pid_fname, arg);
1464             break;
1465         case 'f':
1466 #if YAZ_HAVE_XML2
1467             option_copy(control_block.xml_config, arg);
1468 #else
1469             fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1470             exit(1);
1471 #endif
1472             break;
1473         case 'D':
1474             control_block.background = 1;
1475             break;
1476         case 'r':
1477             if (!arg || !(r = atoi(arg)))
1478             {
1479                 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1480                 return(1);
1481             }
1482             yaz_log_init_max_size(r * 1024);
1483             break;
1484         case 'V':
1485             show_version();
1486             break;
1487         default:
1488             fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1489                     " -l <logfile> -u <user> -c <config> -t <minutes>"
1490                     " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1491                     " -zKiDSTV1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1492             return 1;
1493         }
1494     }
1495     return 0;
1496 }
1497
1498 void statserv_sc_stop(yaz_sc_t s)
1499 {
1500     statserv_closedown();
1501     statserv_reset();
1502 }
1503
1504 int statserv_main(int argc, char **argv,
1505                   bend_initresult *(*bend_init)(bend_initrequest *r),
1506                   void (*bend_close)(void *handle))
1507 {
1508     int ret;
1509     struct statserv_options_block *cb = &control_block;
1510
1511     /* control block does not have service_name member on Unix */
1512     yaz_sc_t s = yaz_sc_create(
1513 #ifdef WIN32
1514         cb->service_name, cb->service_display_name
1515 #else
1516         0, 0
1517 #endif
1518         );
1519
1520     cb->bend_init = bend_init;
1521     cb->bend_close = bend_close;
1522
1523     ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1524     yaz_sc_destroy(&s);
1525     return ret;
1526 }
1527
1528 /*
1529  * Local variables:
1530  * c-basic-offset: 4
1531  * c-file-style: "Stroustrup"
1532  * indent-tabs-mode: nil
1533  * End:
1534  * vim: shiftwidth=4 tabstop=8 expandtab
1535  */
1536