src/statserv.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2010 Index Data
   3  * See the file LICENSE for details.
   4  */
   5
   6 /**
   7  * \file statserv.c
   8  * \brief Implements GFS logic
   9  */
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include <ctype.h>
  15
  16 #ifdef WIN32
  17 #include <process.h>
  18 #include <winsock.h>
  19 #include <direct.h>
  20 #endif
  21
  22 #include <yaz/sc.h>
  23
  24 #if HAVE_SYS_TYPES_H
  25 #include <sys/types.h>
  26 #endif
  27 #if HAVE_SYS_WAIT_H
  28 #include <sys/wait.h>
  29 #endif
  30 #if HAVE_UNISTD_H
  31 #include <unistd.h>
  32 #endif
  33 #if HAVE_PWD_H
  34 #include <pwd.h>
  35 #endif
  36
  37 #if YAZ_HAVE_XML2
  38 #include <libxml/parser.h>
  39 #include <libxml/tree.h>
  40 #include <libxml/xinclude.h>
  41 #endif
  42
  43 #if YAZ_POSIX_THREADS
  44 #include <pthread.h>
  45 #elif YAZ_GNU_THREADS
  46 #include <pth.h>
  47 #endif
  48
  49 #include <fcntl.h>
  50 #include <signal.h>
  51 #include <errno.h>
  52
  53 #include <yaz/comstack.h>
  54 #include <yaz/tcpip.h>
  55 #include <yaz/options.h>
  56 #include <yaz/errno.h>
  57 #ifdef USE_XTIMOSI
  58 #include <yaz/xmosi.h>
  59 #endif
  60 #include <yaz/log.h>
  61 #include "eventl.h"
  62 #include "session.h"
  63 #include <yaz/statserv.h>
  64
  65 static IOCHAN pListener = NULL;
  66
  67 static char gfs_root_dir[FILENAME_MAX+1];
  68 static struct gfs_server *gfs_server_list = 0;
  69 static struct gfs_listen *gfs_listen_list = 0;
  70 static NMEM gfs_nmem = 0;
  71
  72 static char *me = "statserver"; /* log prefix */
  73 static char *programname="statserver"; /* full program name */
  74 #ifdef WIN32
  75 DWORD current_control_tls;
  76 static int init_control_tls = 0;
  77 #elif YAZ_POSIX_THREADS
  78 static pthread_key_t current_control_tls;
  79 static int init_control_tls = 0;
  80 #else
  81 static statserv_options_block *current_control_block = 0;
  82 #endif
  83
  84 /*
  85  * default behavior.
  86  */
  87 #define STAT_DEFAULT_LOG_LEVEL "server,session,request"
  88
  89 int check_options(int argc, char **argv);
  90 statserv_options_block control_block = {
  91     1,                          /* dynamic mode */
  92     0,                          /* threaded mode */
  93     0,                          /* one shot (single session) */
  94     "",                         /* no PDUs */
  95     "",                         /* diagnostic output to stderr */
  96     "tcp:@:9999",               /* default listener port */
  97     PROTO_Z3950,                /* default application protocol */
  98     900,                        /* idle timeout (seconds) */
  99     1024*1024,                  /* maximum PDU size (approx.) to allow */
 100     "default-config",           /* configuration name to pass to backend */
 101     "",                         /* set user id */
 102     0,                          /* bend_start handler */
 103     0,                          /* bend_stop handler */
 104     check_options,              /* Default routine, for checking the run-time arguments */
 105     check_ip_tcpd,
 106     "",
 107     0,                          /* default value for inet deamon */
 108     0,                          /* handle (for service, etc) */
 109     0,                          /* bend_init handle */
 110     0,                          /* bend_close handle */
 111 #ifdef WIN32
 112     "Z39.50 Server",            /* NT Service Name */
 113     "Server",                   /* NT application Name */
 114     "",                         /* NT Service Dependencies */
 115     "Z39.50 Server",            /* NT Service Display Name */
 116 #endif /* WIN32 */
 117     0,                          /* SOAP handlers */
 118     "",                         /* PID fname */
 119     0,                          /* background daemon */
 120     "",                         /* SSL certificate filename */
 121     ""                          /* XML config filename */
 122 };
 123
 124 static int max_sessions = 0;
 125
 126 static int logbits_set = 0;
 127 static int log_session = 0; /* one-line logs for session */
 128 static int log_sessiondetail = 0; /* more detailed stuff */
 129 static int log_server = 0;
 130
 131 /** get_logbits sets global loglevel bits */
 132 static void get_logbits(int force)
 133 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
 134     if (force || !logbits_set)
 135     {
 136         logbits_set = 1;
 137         log_session = yaz_log_module_level("session");
 138         log_sessiondetail = yaz_log_module_level("sessiondetail");
 139         log_server = yaz_log_module_level("server");
 140     }
 141 }
 142
 143
 144 static int add_listener(char *where, int listen_id);
 145
 146 #if YAZ_HAVE_XML2
 147 static xmlDocPtr xml_config_doc = 0;
 148 #endif
 149
 150 #if YAZ_HAVE_XML2
 151 static xmlNodePtr xml_config_get_root(void)
 152 {
 153     xmlNodePtr ptr = 0;
 154     if (xml_config_doc)
 155     {
 156         ptr = xmlDocGetRootElement(xml_config_doc);
 157         if (!ptr || ptr->type != XML_ELEMENT_NODE ||
 158             strcmp((const char *) ptr->name, "yazgfs"))
 159         {
 160             yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
 161                     control_block.xml_config);
 162             return 0;
 163
 164         }
 165     }
 166     return ptr;
 167 }
 168 #endif
 169
 170 #if YAZ_HAVE_XML2
 171 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
 172 {
 173     unsigned char *cp;
 174     xmlNodePtr p;
 175     int len = 1;  /* start with 1, because of trailing 0 */
 176     unsigned char *str;
 177     int first = 1; /* whitespace lead flag .. */
 178     /* determine length */
 179     for (p = ptr; p; p = p->next)
 180     {
 181         if (p->type == XML_TEXT_NODE)
 182             len += xmlStrlen(p->content);
 183     }
 184     /* now allocate for the string */
 185     str = (unsigned char *) nmem_malloc(n, len);
 186     *str = '\0'; /* so we can use strcat */
 187     for (p = ptr; p; p = p->next)
 188     {
 189         if (p->type == XML_TEXT_NODE)
 190         {
 191             cp = p->content;
 192             if (first)
 193             {
 194                 while(*cp && isspace(*cp))
 195                     cp++;
 196                 if (*cp)
 197                     first = 0;  /* reset if we got non-whitespace out */
 198             }
 199             strcat((char *)str, (const char *)cp); /* append */
 200         }
 201     }
 202     /* remove trailing whitespace */
 203     cp = strlen((const char *)str) + str;
 204     while (cp != str && isspace(cp[-1]))
 205         cp--;
 206     *cp = '\0';
 207     /* return resulting string */
 208     return (char *) str;
 209 }
 210 #endif
 211
 212 #if YAZ_HAVE_XML2
 213 static struct gfs_server * gfs_server_new(void)
 214 {
 215     struct gfs_server *n = (struct gfs_server *)
 216         nmem_malloc(gfs_nmem, sizeof(*n));
 217     memcpy(&n->cb, &control_block, sizeof(control_block));
 218     n->next = 0;
 219     n->host = 0;
 220     n->listen_ref = 0;
 221     n->cql_transform = 0;
 222     n->ccl_transform = 0;
 223     n->server_node_ptr = 0;
 224     n->directory = 0;
 225     n->docpath = 0;
 226     n->stylesheet = 0;
 227     n->retrieval = yaz_retrieval_create();
 228     return n;
 229 }
 230 #endif
 231
 232 #if YAZ_HAVE_XML2
 233 static struct gfs_listen * gfs_listen_new(const char *id,
 234                                           const char *address)
 235 {
 236     struct gfs_listen *n = (struct gfs_listen *)
 237         nmem_malloc(gfs_nmem, sizeof(*n));
 238     if (id)
 239         n->id = nmem_strdup(gfs_nmem, id);
 240     else
 241         n->id = 0;
 242     n->next = 0;
 243     n->address = nmem_strdup(gfs_nmem, address);
 244     return n;
 245 }
 246 #endif
 247
 248 static void gfs_server_chdir(struct gfs_server *gfs)
 249 {
 250     if (gfs_root_dir[0])
 251     {
 252         if (chdir(gfs_root_dir))
 253             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
 254     }
 255     if (gfs->directory)
 256     {
 257         if (chdir(gfs->directory))
 258             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
 259                     gfs->directory);
 260     }
 261 }
 262
 263 int control_association(association *assoc, const char *host, int force_open)
 264 {
 265     char vhost[128], *cp;
 266     if (host)
 267     {
 268         strncpy(vhost, host, 127);
 269         vhost[127] = '\0';
 270         cp = strchr(vhost, ':');
 271         if (cp)
 272             *cp = '\0';
 273         host = vhost;
 274     }
 275     assoc->server = 0;
 276     if (control_block.xml_config[0])
 277     {
 278         struct gfs_server *gfs;
 279         for (gfs = gfs_server_list; gfs; gfs = gfs->next)
 280         {
 281             int listen_match = 0;
 282             int host_match = 0;
 283             if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
 284                 host_match = 1;
 285             if (!gfs->listen_ref ||
 286                 gfs->listen_ref == assoc->client_chan->chan_id)
 287                 listen_match = 1;
 288             if (listen_match && host_match)
 289             {
 290                 if (force_open ||
 291                     (assoc->last_control != &gfs->cb && assoc->backend))
 292                 {
 293                     statserv_setcontrol(assoc->last_control);
 294                     if (assoc->backend && assoc->init)
 295                     {
 296                         gfs_server_chdir(gfs);
 297                         (assoc->last_control->bend_close)(assoc->backend);
 298                     }
 299                     assoc->backend = 0;
 300                     xfree(assoc->init);
 301                     assoc->init = 0;
 302                 }
 303                 assoc->server = gfs;
 304                 assoc->last_control = &gfs->cb;
 305                 statserv_setcontrol(&gfs->cb);
 306
 307                 gfs_server_chdir(gfs);
 308                 break;
 309             }
 310         }
 311         if (!gfs)
 312         {
 313             statserv_setcontrol(0);
 314             assoc->last_control = 0;
 315             return 0;
 316         }
 317     }
 318     else
 319     {
 320         statserv_setcontrol(&control_block);
 321         assoc->last_control = &control_block;
 322     }
 323     yaz_log(YLOG_DEBUG, "server select: config=%s",
 324             assoc->last_control->configname);
 325
 326     assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
 327     assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
 328     cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
 329     return 1;
 330 }
 331
 332 #if YAZ_HAVE_XML2
 333 static void xml_config_read(void)
 334 {
 335     struct gfs_server **gfsp = &gfs_server_list;
 336     struct gfs_listen **gfslp = &gfs_listen_list;
 337     xmlNodePtr ptr = xml_config_get_root();
 338
 339     if (!ptr)
 340         return;
 341     for (ptr = ptr->children; ptr; ptr = ptr->next)
 342     {
 343         struct _xmlAttr *attr;
 344         if (ptr->type != XML_ELEMENT_NODE)
 345             continue;
 346         attr = ptr->properties;
 347         if (!strcmp((const char *) ptr->name, "listen"))
 348         {
 349             /*
 350               <listen id="listenerid">tcp:@:9999</listen>
 351             */
 352             const char *id = 0;
 353             const char *address =
 354                 nmem_dup_xml_content(gfs_nmem, ptr->children);
 355             for ( ; attr; attr = attr->next)
 356                 if (!xmlStrcmp(attr->name, BAD_CAST "id")
 357                     && attr->children && attr->children->type == XML_TEXT_NODE)
 358                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 359             if (address)
 360             {
 361                 *gfslp = gfs_listen_new(id, address);
 362                 gfslp = &(*gfslp)->next;
 363                 *gfslp = 0; /* make listener list consistent for search */
 364             }
 365         }
 366         else if (!strcmp((const char *) ptr->name, "server"))
 367         {
 368             xmlNodePtr ptr_server = ptr;
 369             xmlNodePtr ptr;
 370             const char *listenref = 0;
 371             const char *id = 0;
 372             struct gfs_server *gfs;
 373
 374             for ( ; attr; attr = attr->next)
 375                 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
 376                     && attr->children && attr->children->type == XML_TEXT_NODE)
 377                     listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
 378                 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
 379                          && attr->children
 380                          && attr->children->type == XML_TEXT_NODE)
 381                     id = nmem_dup_xml_content(gfs_nmem, attr->children);
 382                 else
 383                     yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
 384                             attr->name);
 385             gfs = *gfsp = gfs_server_new();
 386             gfs->server_node_ptr = ptr_server;
 387             if (listenref)
 388             {
 389                 int id_no;
 390                 struct gfs_listen *gl = gfs_listen_list;
 391                 for (id_no = 1; gl; gl = gl->next, id_no++)
 392                     if (gl->id && !strcmp(gl->id, listenref))
 393                     {
 394                         gfs->listen_ref = id_no;
 395                         break;
 396                     }
 397                 if (!gl)
 398                     yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
 399                             "config element", listenref);
 400             }
 401             for (ptr = ptr_server->children; ptr; ptr = ptr->next)
 402             {
 403                 if (ptr->type != XML_ELEMENT_NODE)
 404                     continue;
 405                 if (!strcmp((const char *) ptr->name, "host"))
 406                 {
 407                     gfs->host = nmem_dup_xml_content(gfs_nmem,
 408                                                      ptr->children);
 409                 }
 410                 else if (!strcmp((const char *) ptr->name, "config"))
 411                 {
 412                     strcpy(gfs->cb.configname,
 413                            nmem_dup_xml_content(gfs_nmem, ptr->children));
 414                 }
 415                 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
 416                 {
 417                     gfs->cql_transform = cql_transform_open_fname(
 418                         nmem_dup_xml_content(gfs_nmem, ptr->children)
 419                         );
 420                 }
 421                 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
 422                 {
 423                     char *name;
 424                     FILE *f;
 425
 426                     name = nmem_dup_xml_content(gfs_nmem, ptr->children);
 427                     if ((f = fopen(name, "r")) == 0) {
 428                         yaz_log(YLOG_FATAL, "can't open CCL file '%s'", name);
 429                         exit(1);
 430                     }
 431                     gfs->ccl_transform = ccl_qual_mk();
 432                     ccl_qual_file (gfs->ccl_transform, f);
 433                     fclose(f);
 434                 }
 435                 else if (!strcmp((const char *) ptr->name, "directory"))
 436                 {
 437                     gfs->directory =
 438                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 439                 }
 440                 else if (!strcmp((const char *) ptr->name, "docpath"))
 441                 {
 442                     gfs->docpath =
 443                         nmem_dup_xml_content(gfs_nmem, ptr->children);
 444                 }
 445                 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
 446                 {
 447                     gfs->cb.maxrecordsize = atoi(
 448                         nmem_dup_xml_content(gfs_nmem, ptr->children));
 449                 }
 450                 else if (!strcmp((const char *) ptr->name, "stylesheet"))
 451                 {
 452                     char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
 453                     gfs->stylesheet = (char *)
 454                         nmem_malloc(gfs_nmem, strlen(s) + 2);
 455                     sprintf(gfs->stylesheet, "/%s", s);
 456                 }
 457                 else if (!strcmp((const char *) ptr->name, "explain"))
 458                 {
 459                     ; /* being processed separately */
 460                 }
 461                 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
 462                 {
 463                     if (yaz_retrieval_configure(gfs->retrieval, ptr))
 464                     {
 465                         yaz_log(YLOG_FATAL, "%s in config %s",
 466                                 yaz_retrieval_get_error(gfs->retrieval),
 467                                 control_block.xml_config);
 468                         exit(1);
 469                     }
 470                 }
 471                 else
 472                 {
 473                     yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
 474                             ptr->name, control_block.xml_config);
 475                     exit(1);
 476                 }
 477             }
 478             gfsp = &(*gfsp)->next;
 479         }
 480     }
 481     *gfsp = 0;
 482 }
 483 #endif
 484
 485 static void xml_config_open(void)
 486 {
 487     if (!getcwd(gfs_root_dir, FILENAME_MAX))
 488     {
 489         yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
 490         gfs_root_dir[0] = '\0';
 491     }
 492 #ifdef WIN32
 493     init_control_tls = 1;
 494     current_control_tls = TlsAlloc();
 495 #elif YAZ_POSIX_THREADS
 496     init_control_tls = 1;
 497     pthread_key_create(&current_control_tls, 0);
 498 #endif
 499
 500     gfs_nmem = nmem_create();
 501 #if YAZ_HAVE_XML2
 502     if (control_block.xml_config[0] == '\0')
 503         return;
 504
 505     if (!xml_config_doc)
 506     {
 507         xml_config_doc = xmlParseFile(control_block.xml_config);
 508         if (!xml_config_doc)
 509         {
 510             yaz_log(YLOG_FATAL, "Could not parse %s", control_block.xml_config);
 511             exit(1);
 512         }
 513         else
 514         {
 515             int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
 516             if (noSubstitutions == -1)
 517             {
 518                 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
 519                         control_block.xml_config);
 520                 exit(1);
 521             }
 522         }
 523     }
 524     xml_config_read();
 525 #endif
 526 }
 527
 528 static void xml_config_close(void)
 529 {
 530 #if YAZ_HAVE_XML2
 531     if (xml_config_doc)
 532     {
 533         xmlFreeDoc(xml_config_doc);
 534         xml_config_doc = 0;
 535     }
 536 #endif
 537     gfs_server_list = 0;
 538     nmem_destroy(gfs_nmem);
 539 #ifdef WIN32
 540     if (init_control_tls)
 541         TlsFree(current_control_tls);
 542 #elif YAZ_POSIX_THREADS
 543     if (init_control_tls)
 544         pthread_key_delete(current_control_tls);
 545 #endif
 546 }
 547
 548 static void xml_config_add_listeners(void)
 549 {
 550     struct gfs_listen *gfs = gfs_listen_list;
 551     int id_no;
 552
 553     for (id_no = 1; gfs; gfs = gfs->next, id_no++)
 554     {
 555         if (gfs->address)
 556             add_listener(gfs->address, id_no);
 557     }
 558 }
 559
 560 static void xml_config_bend_start(void)
 561 {
 562     if (control_block.xml_config[0])
 563     {
 564         struct gfs_server *gfs = gfs_server_list;
 565         for (; gfs; gfs = gfs->next)
 566         {
 567             yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
 568                     gfs->cb.configname);
 569             statserv_setcontrol(&gfs->cb);
 570             if (control_block.bend_start)
 571             {
 572                 gfs_server_chdir(gfs);
 573                 (control_block.bend_start)(&gfs->cb);
 574             }
 575         }
 576     }
 577     else
 578     {
 579         yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
 580         statserv_setcontrol(&control_block);
 581         if (control_block.bend_start)
 582             (*control_block.bend_start)(&control_block);
 583     }
 584 }
 585
 586 static void xml_config_bend_stop(void)
 587 {
 588     if (control_block.xml_config[0])
 589     {
 590         struct gfs_server *gfs = gfs_server_list;
 591         for (; gfs; gfs = gfs->next)
 592         {
 593             yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
 594                     gfs->cb.configname);
 595             statserv_setcontrol(&gfs->cb);
 596             if (control_block.bend_stop)
 597                 (control_block.bend_stop)(&gfs->cb);
 598         }
 599     }
 600     else
 601     {
 602         yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
 603         statserv_setcontrol(&control_block);
 604         if (control_block.bend_stop)
 605             (*control_block.bend_stop)(&control_block);
 606     }
 607 }
 608
 609 /*
 610  * handle incoming connect requests.
 611  * The dynamic mode is a bit tricky mostly because we want to avoid
 612  * doing all of the listening and accepting in the parent - it's
 613  * safer that way.
 614  */
 615 #ifdef WIN32
 616
 617 typedef struct _ThreadList ThreadList;
 618
 619 struct _ThreadList
 620 {
 621     HANDLE hThread;
 622     IOCHAN pIOChannel;
 623     ThreadList *pNext;
 624 };
 625
 626 static ThreadList *pFirstThread;
 627 static CRITICAL_SECTION Thread_CritSect;
 628 static BOOL bInitialized = FALSE;
 629
 630 static void ThreadList_Initialize()
 631 {
 632     /* Initialize the critical Sections */
 633     InitializeCriticalSection(&Thread_CritSect);
 634
 635     /* Set the first thraed */
 636     pFirstThread = NULL;
 637
 638     /* we have been initialized */
 639     bInitialized = TRUE;
 640 }
 641
 642 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
 643 {
 644     /* Only one thread can go through this section at a time */
 645     EnterCriticalSection(&Thread_CritSect);
 646
 647     {
 648         /* Lets create our new object */
 649         ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
 650         pNewThread->hThread = hThread;
 651         pNewThread->pIOChannel = pIOChannel;
 652         pNewThread->pNext = pFirstThread;
 653         pFirstThread = pNewThread;
 654
 655         /* Lets let somebody else create a new object now */
 656         LeaveCriticalSection(&Thread_CritSect);
 657     }
 658 }
 659
 660 void statserv_remove(IOCHAN pIOChannel)
 661 {
 662     /* Only one thread can go through this section at a time */
 663     EnterCriticalSection(&Thread_CritSect);
 664
 665     {
 666         ThreadList *pCurrentThread = pFirstThread;
 667         ThreadList *pNextThread;
 668         ThreadList *pPrevThread =NULL;
 669
 670         /* Step through all the threads */
 671         for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
 672         {
 673             /* We only need to compare on the IO Channel */
 674             if (pCurrentThread->pIOChannel == pIOChannel)
 675             {
 676                 /* We have found the thread we want to delete */
 677                 /* First of all reset the next pointers */
 678                 if (pPrevThread == NULL)
 679                     pFirstThread = pCurrentThread->pNext;
 680                 else
 681                     pPrevThread->pNext = pCurrentThread->pNext;
 682
 683                 /* All we need todo now is delete the memory */
 684                 free(pCurrentThread);
 685
 686                 /* No need to look at any more threads */
 687                 pNextThread = NULL;
 688             }
 689             else
 690             {
 691                 /* We need to look at another thread */
 692                 pNextThread = pCurrentThread->pNext;
 693                 pPrevThread = pCurrentThread;
 694             }
 695         }
 696
 697         /* Lets let somebody else remove an object now */
 698         LeaveCriticalSection(&Thread_CritSect);
 699     }
 700 }
 701
 702 /* WIN32 statserv_closedown */
 703 static void statserv_closedown()
 704 {
 705     /* Shouldn't do anything if we are not initialized */
 706     if (bInitialized)
 707     {
 708         int iHandles = 0;
 709         HANDLE *pThreadHandles = NULL;
 710
 711         /* We need to stop threads adding and removing while we */
 712         /* start the closedown process */
 713         EnterCriticalSection(&Thread_CritSect);
 714
 715         {
 716             /* We have exclusive access to the thread stuff now */
 717             /* Y didn't i use a semaphore - Oh well never mind */
 718             ThreadList *pCurrentThread = pFirstThread;
 719
 720             /* Before we do anything else, we need to shutdown the listener */
 721             if (pListener != NULL)
 722                 iochan_destroy(pListener);
 723
 724             for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
 725             {
 726                 /* Just destroy the IOCHAN, that should do the trick */
 727                 iochan_destroy(pCurrentThread->pIOChannel);
 728                 closesocket(pCurrentThread->pIOChannel->fd);
 729
 730                 /* Keep a running count of our handles */
 731                 iHandles++;
 732             }
 733
 734             if (iHandles > 0)
 735             {
 736                 HANDLE *pCurrentHandle ;
 737
 738                 /* Allocate the thread handle array */
 739                 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
 740                 pCurrentHandle = pThreadHandles;
 741
 742                 for (pCurrentThread = pFirstThread;
 743                      pCurrentThread != NULL;
 744                      pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
 745                 {
 746                     /* Just the handle */
 747                     *pCurrentHandle = pCurrentThread->hThread;
 748                 }
 749             }
 750
 751             /* We can now leave the critical section */
 752             LeaveCriticalSection(&Thread_CritSect);
 753         }
 754
 755         /* Now we can really do something */
 756         if (iHandles > 0)
 757         {
 758             yaz_log(log_server, "waiting for %d to die", iHandles);
 759             /* This will now wait, until all the threads close */
 760             WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
 761
 762             /* Free the memory we allocated for the handle array */
 763             free(pThreadHandles);
 764         }
 765
 766         xml_config_bend_stop();
 767         /* No longer require the critical section, since all threads are dead */
 768         DeleteCriticalSection(&Thread_CritSect);
 769     }
 770     xml_config_close();
 771 }
 772
 773 void __cdecl event_loop_thread(IOCHAN iochan)
 774 {
 775     iochan_event_loop(&iochan);
 776 }
 777
 778 /* WIN32 listener */
 779 static void listener(IOCHAN h, int event)
 780 {
 781     COMSTACK line = (COMSTACK) iochan_getdata(h);
 782     IOCHAN parent_chan = line->user;
 783     association *newas;
 784     int res;
 785     HANDLE newHandle;
 786
 787     if (event == EVENT_INPUT)
 788     {
 789         COMSTACK new_line;
 790         IOCHAN new_chan;
 791
 792         if ((res = cs_listen(line, 0, 0)) < 0)
 793         {
 794             yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
 795             return;
 796         }
 797         else if (res == 1)
 798             return; /* incomplete */
 799         yaz_log(YLOG_DEBUG, "listen ok");
 800         new_line = cs_accept(line);
 801         if (!new_line)
 802         {
 803             yaz_log(YLOG_FATAL, "Accept failed.");
 804             return;
 805         }
 806         yaz_log(YLOG_DEBUG, "Accept ok");
 807
 808         if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
 809                                        EVENT_INPUT, parent_chan->chan_id)))
 810         {
 811             yaz_log(YLOG_FATAL, "Failed to create iochan");
 812             iochan_destroy(h);
 813             return;
 814         }
 815
 816         yaz_log(YLOG_DEBUG, "Creating association");
 817         if (!(newas = create_association(new_chan, new_line,
 818                                          control_block.apdufile)))
 819         {
 820             yaz_log(YLOG_FATAL, "Failed to create new assoc.");
 821             iochan_destroy(h);
 822             return;
 823         }
 824         newas->cs_get_mask = EVENT_INPUT;
 825         newas->cs_put_mask = 0;
 826         newas->cs_accept_mask = 0;
 827
 828         yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
 829         iochan_setdata(new_chan, newas);
 830         iochan_settimeout(new_chan, 60);
 831
 832         /* Now what we need todo is create a new thread with this iochan as
 833            the parameter */
 834         newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
 835         if (newHandle == (HANDLE) -1)
 836         {
 837
 838             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
 839             iochan_destroy(h);
 840             return;
 841         }
 842         /* We successfully created the thread, so add it to the list */
 843         statserv_add(newHandle, new_chan);
 844
 845         yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
 846         iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 847     }
 848     else
 849     {
 850         yaz_log(YLOG_FATAL, "Bad event on listener.");
 851         iochan_destroy(h);
 852         return;
 853     }
 854 }
 855
 856 int statserv_must_terminate(void)
 857 {
 858     return 0;
 859 }
 860
 861 #else /* ! WIN32 */
 862
 863 static int term_flag = 0;
 864 /* To save having an #ifdef in event_loop we need to
 865    define this empty function
 866 */
 867 int statserv_must_terminate(void)
 868 {
 869     return term_flag;
 870 }
 871
 872 void statserv_remove(IOCHAN pIOChannel)
 873 {
 874 }
 875
 876 static void statserv_closedown(void)
 877 {
 878     IOCHAN p;
 879
 880     xml_config_bend_stop();
 881     for (p = pListener; p; p = p->next)
 882     {
 883         iochan_destroy(p);
 884     }
 885     xml_config_close();
 886 }
 887
 888 void sigterm(int sig)
 889 {
 890     term_flag = 1;
 891 }
 892
 893 static void *new_session(void *vp);
 894 static int no_sessions = 0;
 895
 896 /* UNIX listener */
 897 static void listener(IOCHAN h, int event)
 898 {
 899     COMSTACK line = (COMSTACK) iochan_getdata(h);
 900     int res;
 901
 902     if (event == EVENT_INPUT)
 903     {
 904         COMSTACK new_line;
 905         if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
 906                                    control_block.daemon_name)) < 0)
 907         {
 908             yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
 909             return;
 910         }
 911         else if (res == 1)
 912         {
 913             yaz_log(YLOG_WARN, "cs_listen incomplete");
 914             return;
 915         }
 916         new_line = cs_accept(line);
 917         if (!new_line)
 918         {
 919             yaz_log(YLOG_FATAL, "Accept failed.");
 920             iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
 921             return;
 922         }
 923
 924         yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
 925
 926         no_sessions++;
 927         if (control_block.dynamic)
 928         {
 929             if ((res = fork()) < 0)
 930             {
 931                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
 932                 iochan_destroy(h);
 933                 return;
 934             }
 935             else if (res == 0) /* child */
 936             {
 937                 char nbuf[100];
 938                 IOCHAN pp;
 939
 940                 for (pp = pListener; pp; pp = iochan_getnext(pp))
 941                 {
 942                     COMSTACK l = (COMSTACK)iochan_getdata(pp);
 943                     cs_close(l);
 944                     iochan_destroy(pp);
 945                 }
 946                 sprintf(nbuf, "%s(%d)", me, no_sessions);
 947                 yaz_log_init_prefix(nbuf);
 948                 /* ensure that bend_stop is not called when each child exits -
 949                    only for the main process ..  */
 950                 control_block.bend_stop = 0;
 951             }
 952             else /* parent */
 953             {
 954                 cs_close(new_line);
 955                 return;
 956             }
 957         }
 958
 959         if (control_block.threads)
 960         {
 961 #if YAZ_POSIX_THREADS
 962             pthread_t child_thread;
 963             pthread_create(&child_thread, 0, new_session, new_line);
 964             pthread_detach(child_thread);
 965 #elif YAZ_GNU_THREADS
 966             pth_attr_t attr;
 967             pth_t child_thread;
 968
 969             attr = pth_attr_new();
 970             pth_attr_set(attr, PTH_ATTR_JOINABLE, FALSE);
 971             pth_attr_set(attr, PTH_ATTR_STACK_SIZE, 32*1024);
 972             pth_attr_set(attr, PTH_ATTR_NAME, "session");
 973             yaz_log(YLOG_DEBUG, "pth_spawn begin");
 974             child_thread = pth_spawn(attr, new_session, new_line);
 975             yaz_log(YLOG_DEBUG, "pth_spawn finish");
 976             pth_attr_destroy(attr);
 977 #else
 978             new_session(new_line);
 979 #endif
 980         }
 981         else
 982             new_session(new_line);
 983     }
 984     else if (event == EVENT_TIMEOUT)
 985     {
 986         yaz_log(log_server, "Shutting down listener.");
 987         iochan_destroy(h);
 988     }
 989     else
 990     {
 991         yaz_log(YLOG_FATAL, "Bad event on listener.");
 992         iochan_destroy(h);
 993     }
 994 }
 995
 996 static void *new_session(void *vp)
 997 {
 998     const char *a;
 999     association *newas;
1000     IOCHAN new_chan;
1001     COMSTACK new_line = (COMSTACK) vp;
1002     IOCHAN parent_chan = (IOCHAN) new_line->user;
1003
1004     unsigned cs_get_mask, cs_accept_mask, mask =
1005         ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
1006         ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
1007
1008     if (mask)
1009     {
1010         cs_accept_mask = mask;  /* accept didn't complete */
1011         cs_get_mask = 0;
1012     }
1013     else
1014     {
1015         cs_accept_mask = 0;     /* accept completed.  */
1016         cs_get_mask = mask = EVENT_INPUT;
1017     }
1018
1019     if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1020                                    parent_chan->chan_id)))
1021     {
1022         yaz_log(YLOG_FATAL, "Failed to create iochan");
1023         return 0;
1024     }
1025     if (!(newas = create_association(new_chan, new_line,
1026                                      control_block.apdufile)))
1027     {
1028         yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1029         return 0;
1030     }
1031     newas->cs_accept_mask = cs_accept_mask;
1032     newas->cs_get_mask = cs_get_mask;
1033
1034     iochan_setdata(new_chan, newas);
1035     iochan_settimeout(new_chan, 60);
1036 #if 1
1037     a = cs_addrstr(new_line);
1038 #else
1039     a = 0;
1040 #endif
1041     yaz_log_xml_errors(0, YLOG_WARN);
1042     yaz_log(log_session, "Session - OK %d %s %ld",
1043             no_sessions, a ? a : "[Unknown]", (long) getpid());
1044     if (max_sessions && no_sessions >= max_sessions)
1045         control_block.one_shot = 1;
1046     if (control_block.threads)
1047     {
1048         iochan_event_loop(&new_chan);
1049     }
1050     else
1051     {
1052         new_chan->next = pListener;
1053         pListener = new_chan;
1054     }
1055     return 0;
1056 }
1057
1058 /* UNIX */
1059 #endif
1060
1061 static void inetd_connection(int what)
1062 {
1063     COMSTACK line;
1064     IOCHAN chan;
1065     association *assoc;
1066     const char *addr;
1067
1068     if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1069     {
1070         if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1071                                   0)))
1072         {
1073             if ((assoc = create_association(chan, line,
1074                                             control_block.apdufile)))
1075             {
1076                 iochan_setdata(chan, assoc);
1077                 iochan_settimeout(chan, 60);
1078                 addr = cs_addrstr(line);
1079                 yaz_log(log_sessiondetail, "Inetd association from %s",
1080                         addr ? addr : "[UNKNOWN]");
1081                 assoc->cs_get_mask = EVENT_INPUT;
1082             }
1083             else
1084             {
1085                 yaz_log(YLOG_FATAL, "Failed to create association structure");
1086             }
1087             chan->next = pListener;
1088             pListener = chan;
1089         }
1090         else
1091         {
1092             yaz_log(YLOG_FATAL, "Failed to create iochan");
1093         }
1094     }
1095     else
1096     {
1097         yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1098     }
1099 }
1100
1101 /*
1102  * Set up a listening endpoint, and give it to the event-handler.
1103  */
1104 static int add_listener(char *where, int listen_id)
1105 {
1106     COMSTACK l;
1107     void *ap;
1108     IOCHAN lst = NULL;
1109     const char *mode;
1110
1111     if (control_block.dynamic)
1112         mode = "dynamic";
1113     else if (control_block.threads)
1114         mode = "threaded";
1115     else
1116         mode = "static";
1117
1118     yaz_log(log_server, "Adding %s listener on %s id=%d", mode, where,
1119             listen_id);
1120
1121     l = cs_create_host(where, 2, &ap);
1122     if (!l)
1123     {
1124         yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1125         return -1;
1126     }
1127     if (*control_block.cert_fname)
1128         cs_set_ssl_certificate_file(l, control_block.cert_fname);
1129
1130     if (cs_bind(l, ap, CS_SERVER) < 0)
1131     {
1132         if (cs_errno(l) == CSYSERR)
1133             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1134         else
1135             yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1136                     cs_strerror(l));
1137         cs_close(l);
1138         return -1;
1139     }
1140     if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1141                               EVENT_EXCEPT, listen_id)))
1142     {
1143         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1144         cs_close(l);
1145         return -1;
1146     }
1147     iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1148     l->user = lst;  /* user-defined data for COMSTACK is listener chan */
1149
1150     /* Add listener to chain */
1151     lst->next = pListener;
1152     pListener = lst;
1153     return 0; /* OK */
1154 }
1155
1156 #ifndef WIN32
1157 /* UNIX only (for windows we don't need to catch the signals) */
1158 static void catchchld(int num)
1159 {
1160     while (waitpid(-1, 0, WNOHANG) > 0)
1161         ;
1162     signal(SIGCHLD, catchchld);
1163 }
1164 #endif
1165
1166 statserv_options_block *statserv_getcontrol(void)
1167 {
1168 #ifdef WIN32
1169     if (init_control_tls)
1170         return (statserv_options_block *) TlsGetValue(current_control_tls);
1171     else
1172         return &control_block;
1173 #elif YAZ_POSIX_THREADS
1174     if (init_control_tls)
1175         return (statserv_options_block *)
1176             pthread_getspecific(current_control_tls);
1177     else
1178         return &control_block;
1179 #else
1180     if (current_control_block)
1181         return current_control_block;
1182     return &control_block;
1183 #endif
1184 }
1185
1186 void statserv_setcontrol(statserv_options_block *block)
1187 {
1188     if (gfs_root_dir[0])
1189     {
1190         if (chdir(gfs_root_dir))
1191             yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1192     }
1193 #ifdef WIN32
1194     if (init_control_tls)
1195         TlsSetValue(current_control_tls, block);
1196 #elif YAZ_POSIX_THREADS
1197     if (init_control_tls)
1198         pthread_setspecific(current_control_tls, block);
1199 #else
1200     current_control_block = block;
1201 #endif
1202 }
1203
1204 static void statserv_reset(void)
1205 {
1206 }
1207
1208 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1209 {
1210     char sep;
1211 #ifdef WIN32
1212     /* We need to initialize the thread list */
1213     ThreadList_Initialize();
1214 /* WIN32 */
1215 #endif
1216
1217
1218 #ifdef WIN32
1219     sep = '\\';
1220 #else
1221     sep = '/';
1222 #endif
1223     if ((me = strrchr(argv[0], sep)))
1224         me++; /* get the basename */
1225     else
1226         me = argv[0];
1227     programname = argv[0];
1228
1229     if (control_block.options_func(argc, argv))
1230         return 1;
1231
1232     xml_config_open();
1233
1234     xml_config_bend_start();
1235
1236 #ifdef WIN32
1237     xml_config_add_listeners();
1238
1239     yaz_log(log_server, "Starting server %s", me);
1240     if (!pListener && *control_block.default_listen)
1241         add_listener(control_block.default_listen, 0);
1242 #else
1243 /* UNIX */
1244     if (control_block.inetd)
1245         inetd_connection(control_block.default_proto);
1246     else
1247     {
1248         static int hand[2];
1249         if (control_block.background)
1250         {
1251             /* create pipe so that parent waits until child has created
1252                PID (or failed) */
1253             if (pipe(hand) < 0)
1254             {
1255                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "pipe");
1256                 return 1;
1257             }
1258             switch (fork())
1259             {
1260             case 0:
1261                 break;
1262             case -1:
1263                 return 1;
1264             default:
1265                 close(hand[1]);
1266                 while(1)
1267                 {
1268                     char dummy[1];
1269                     int res = read(hand[0], dummy, 1);
1270                     if (res < 0 && yaz_errno() != EINTR)
1271                     {
1272                         yaz_log(YLOG_FATAL|YLOG_ERRNO, "read fork handshake");
1273                         break;
1274                     }
1275                     else if (res >= 0)
1276                         break;
1277                 }
1278                 close(hand[0]);
1279                 _exit(0);
1280             }
1281             /* child */
1282             close(hand[0]);
1283             if (setsid() < 0)
1284                 return 1;
1285
1286             close(0);
1287             close(1);
1288             close(2);
1289             open("/dev/null", O_RDWR);
1290             if (dup(0) == -1)
1291                 return 1;
1292             if (dup(0) == -1)
1293                 return 1;
1294         }
1295         xml_config_add_listeners();
1296
1297         if (!pListener && *control_block.default_listen)
1298             add_listener(control_block.default_listen, 0);
1299
1300         if (!pListener)
1301             return 1;
1302
1303         if (*control_block.pid_fname)
1304         {
1305             FILE *f = fopen(control_block.pid_fname, "w");
1306             if (!f)
1307             {
1308                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Couldn't create %s",
1309                         control_block.pid_fname);
1310                 exit(0);
1311             }
1312             fprintf(f, "%ld", (long) getpid());
1313             fclose(f);
1314         }
1315
1316         if (control_block.background)
1317             close(hand[1]);
1318
1319
1320         yaz_log(log_server, "Starting server %s pid=%ld", programname,
1321                 (long) getpid());
1322 #if 0
1323         sigset_t sigs_to_block;
1324
1325         sigemptyset(&sigs_to_block);
1326         sigaddset(&sigs_to_block, SIGTERM);
1327         pthread_sigmask(SIG_BLOCK, &sigs_to_block, 0);
1328         /* missing... */
1329 #endif
1330         if (control_block.dynamic)
1331             signal(SIGCHLD, catchchld);
1332     }
1333     signal(SIGPIPE, SIG_IGN);
1334     signal(SIGTERM, sigterm);
1335     if (*control_block.setuid)
1336     {
1337         struct passwd *pw;
1338
1339         if (!(pw = getpwnam(control_block.setuid)))
1340         {
1341             yaz_log(YLOG_FATAL, "%s: Unknown user", control_block.setuid);
1342             return(1);
1343         }
1344         if (setuid(pw->pw_uid) < 0)
1345         {
1346             yaz_log(YLOG_FATAL|YLOG_ERRNO, "setuid");
1347             exit(1);
1348         }
1349     }
1350 /* UNIX */
1351 #endif
1352     if (pListener == NULL)
1353         return 1;
1354     if (s)
1355         yaz_sc_running(s);
1356     yaz_log(YLOG_DEBUG, "Entering event loop.");
1357     return iochan_event_loop(&pListener);
1358 }
1359
1360 static void option_copy(char *dst, const char *src)
1361 {
1362     strncpy(dst, src ? src : "", 127);
1363     dst[127] = '\0';
1364 }
1365
1366 int check_options(int argc, char **argv)
1367 {
1368     int ret = 0, r;
1369     char *arg;
1370
1371     yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1372
1373     get_logbits(1);
1374
1375     while ((ret = options("1a:iszSTl:v:u:c:w:t:k:d:A:p:DC:f:m:r:",
1376                           argv, argc, &arg)) != -2)
1377     {
1378         switch (ret)
1379         {
1380         case 0:
1381             if (add_listener(arg, 0))
1382                 return 1;  /* failed to create listener */
1383             break;
1384         case '1':
1385             control_block.one_shot = 1;
1386             control_block.dynamic = 0;
1387             break;
1388         case 'z':
1389             control_block.default_proto = PROTO_Z3950;
1390             break;
1391         case 's':
1392             fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1393             exit(1);
1394             break;
1395         case 'S':
1396             control_block.dynamic = 0;
1397             break;
1398         case 'T':
1399 #if YAZ_POSIX_THREADS
1400             control_block.dynamic = 0;
1401             control_block.threads = 1;
1402 #elif YAZ_GNU_THREADS
1403             control_block.dynamic = 0;
1404             control_block.threads = 1;
1405 #else
1406             fprintf(stderr, "%s: Threaded mode not available.\n", me);
1407             return 1;
1408 #endif
1409             break;
1410         case 'l':
1411             option_copy(control_block.logfile, arg);
1412             yaz_log_init_file(control_block.logfile);
1413             break;
1414         case 'm':
1415             if (!arg) {
1416                 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1417                 return(1);
1418             }
1419             yaz_log_time_format(arg);
1420             break;
1421         case 'v':
1422             yaz_log_init_level(yaz_log_mask_str(arg));
1423             get_logbits(1);
1424             break;
1425         case 'a':
1426             option_copy(control_block.apdufile, arg);
1427             break;
1428         case 'u':
1429             option_copy(control_block.setuid, arg);
1430             break;
1431         case 'c':
1432             option_copy(control_block.configname, arg);
1433             break;
1434         case 'C':
1435             option_copy(control_block.cert_fname, arg);
1436             break;
1437         case 'd':
1438             option_copy(control_block.daemon_name, arg);
1439             break;
1440         case 't':
1441             if (!arg || !(r = atoi(arg)))
1442             {
1443                 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1444                 return(1);
1445             }
1446             control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1447             break;
1448         case  'k':
1449             if (!arg || !(r = atoi(arg)))
1450             {
1451                 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1452                 return(1);
1453             }
1454             control_block.maxrecordsize = r * 1024;
1455             break;
1456         case 'i':
1457             control_block.inetd = 1;
1458             break;
1459         case 'w':
1460             if (chdir(arg))
1461             {
1462                 perror(arg);
1463                 return 1;
1464             }
1465             break;
1466         case 'A':
1467             max_sessions = atoi(arg);
1468             break;
1469         case 'p':
1470             option_copy(control_block.pid_fname, arg);
1471             break;
1472         case 'f':
1473 #if YAZ_HAVE_XML2
1474             option_copy(control_block.xml_config, arg);
1475 #else
1476             fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1477             exit(1);
1478 #endif
1479             break;
1480         case 'D':
1481             control_block.background = 1;
1482             break;
1483         case 'r':
1484             if (!arg || !(r = atoi(arg)))
1485             {
1486                 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1487                 return(1);
1488             }
1489             yaz_log_init_max_size(r * 1024);
1490             break;
1491         default:
1492             fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1493                     " -l <logfile> -u <user> -c <config> -t <minutes>"
1494                     " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1495                     " -ziDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1496             return 1;
1497         }
1498     }
1499     return 0;
1500 }
1501
1502 void statserv_sc_stop(yaz_sc_t s)
1503 {
1504     statserv_closedown();
1505     statserv_reset();
1506 }
1507
1508 int statserv_main(int argc, char **argv,
1509                   bend_initresult *(*bend_init)(bend_initrequest *r),
1510                   void (*bend_close)(void *handle))
1511 {
1512     int ret;
1513     struct statserv_options_block *cb = &control_block;
1514
1515     /* control block does not have service_name member on Unix */
1516     yaz_sc_t s = yaz_sc_create(
1517 #ifdef WIN32
1518         cb->service_name, cb->service_display_name
1519 #else
1520         0, 0
1521 #endif
1522         );
1523
1524     cb->bend_init = bend_init;
1525     cb->bend_close = bend_close;
1526
1527     ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1528     yaz_sc_destroy(&s);
1529     return ret;
1530 }
1531
1532 /*
1533  * Local variables:
1534  * c-basic-offset: 4
1535  * c-file-style: "Stroustrup"
1536  * indent-tabs-mode: nil
1537  * End:
1538  * vim: shiftwidth=4 tabstop=8 expandtab
1539  */
1540