1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2011 Index Data
3 * See the file LICENSE for details.
8 * \brief Implements GFS logic
28 #include <sys/types.h>
41 #include <libxml/parser.h>
42 #include <libxml/tree.h>
43 #include <libxml/xinclude.h>
54 #include <yaz/comstack.h>
55 #include <yaz/tcpip.h>
56 #include <yaz/options.h>
57 #include <yaz/errno.h>
59 #include <yaz/xmosi.h>
64 #include <yaz/statserv.h>
65 #include <yaz/daemon.h>
66 #include <yaz/yaz-iconv.h>
68 static IOCHAN pListener = NULL;
70 static char gfs_root_dir[FILENAME_MAX+1];
71 static struct gfs_server *gfs_server_list = 0;
72 static struct gfs_listen *gfs_listen_list = 0;
73 static NMEM gfs_nmem = 0;
75 static char *me = "statserver"; /* log prefix */
76 static char *programname="statserver"; /* full program name */
78 DWORD current_control_tls;
79 static int init_control_tls = 0;
80 #elif YAZ_POSIX_THREADS
81 static pthread_key_t current_control_tls;
82 static int init_control_tls = 0;
84 static statserv_options_block *current_control_block = 0;
90 #define STAT_DEFAULT_LOG_LEVEL "server,session,request"
92 int check_options(int argc, char **argv);
93 statserv_options_block control_block = {
95 0, /* threaded mode */
96 0, /* one shot (single session) */
98 "", /* diagnostic output to stderr */
99 "tcp:@:9999", /* default listener port */
100 PROTO_Z3950, /* default application protocol */
101 900, /* idle timeout (seconds) */
102 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 */
110 0, /* default value for inet deamon */
111 0, /* handle (for service, etc) */
112 0, /* bend_init handle */
113 0, /* bend_close handle */
115 "Z39.50 Server", /* NT Service Name */
116 "Server", /* NT application Name */
117 "", /* NT Service Dependencies */
118 "Z39.50 Server", /* NT Service Display Name */
120 0, /* SOAP handlers */
122 0, /* background daemon */
123 "", /* SSL certificate filename */
124 "", /* XML config filename */
128 static int max_sessions = 0;
130 static int logbits_set = 0;
131 static int log_session = 0; /* one-line logs for session */
132 static int log_sessiondetail = 0; /* more detailed stuff */
133 static int log_server = 0;
135 /** get_logbits sets global loglevel bits */
136 static void get_logbits(int force)
137 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
138 if (force || !logbits_set)
141 log_session = yaz_log_module_level("session");
142 log_sessiondetail = yaz_log_module_level("sessiondetail");
143 log_server = yaz_log_module_level("server");
148 static int add_listener(char *where, int listen_id);
151 static xmlDocPtr xml_config_doc = 0;
155 static xmlNodePtr xml_config_get_root(void)
160 ptr = xmlDocGetRootElement(xml_config_doc);
161 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
162 strcmp((const char *) ptr->name, "yazgfs"))
164 yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
165 control_block.xml_config);
175 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
179 int len = 1; /* start with 1, because of trailing 0 */
181 int first = 1; /* whitespace lead flag .. */
182 /* determine length */
183 for (p = ptr; p; p = p->next)
185 if (p->type == XML_TEXT_NODE)
186 len += xmlStrlen(p->content);
188 /* now allocate for the string */
189 str = (unsigned char *) nmem_malloc(n, len);
190 *str = '\0'; /* so we can use strcat */
191 for (p = ptr; p; p = p->next)
193 if (p->type == XML_TEXT_NODE)
198 while(*cp && yaz_isspace(*cp))
201 first = 0; /* reset if we got non-whitespace out */
203 strcat((char *)str, (const char *)cp); /* append */
206 /* remove trailing whitespace */
207 cp = strlen((const char *)str) + str;
208 while (cp != str && yaz_isspace(cp[-1]))
211 /* return resulting string */
217 static struct gfs_server * gfs_server_new(void)
219 struct gfs_server *n = (struct gfs_server *)
220 nmem_malloc(gfs_nmem, sizeof(*n));
221 memcpy(&n->cb, &control_block, sizeof(control_block));
225 n->cql_transform = 0;
226 n->ccl_transform = 0;
227 n->server_node_ptr = 0;
231 n->retrieval = yaz_retrieval_create();
237 static struct gfs_listen * gfs_listen_new(const char *id,
240 struct gfs_listen *n = (struct gfs_listen *)
241 nmem_malloc(gfs_nmem, sizeof(*n));
243 n->id = nmem_strdup(gfs_nmem, id);
247 n->address = nmem_strdup(gfs_nmem, address);
252 static void gfs_server_chdir(struct gfs_server *gfs)
256 if (chdir(gfs_root_dir))
257 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
261 if (chdir(gfs->directory))
262 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s",
267 int control_association(association *assoc, const char *host, int force_open)
269 char vhost[128], *cp;
272 strncpy(vhost, host, 127);
274 cp = strchr(vhost, ':');
280 if (control_block.xml_config[0])
282 struct gfs_server *gfs;
283 for (gfs = gfs_server_list; gfs; gfs = gfs->next)
285 int listen_match = 0;
287 if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
289 if (!gfs->listen_ref ||
290 gfs->listen_ref == assoc->client_chan->chan_id)
292 if (listen_match && host_match)
295 (assoc->last_control != &gfs->cb && assoc->backend))
297 statserv_setcontrol(assoc->last_control);
298 if (assoc->backend && assoc->init)
300 gfs_server_chdir(gfs);
301 (assoc->last_control->bend_close)(assoc->backend);
308 assoc->last_control = &gfs->cb;
309 statserv_setcontrol(&gfs->cb);
311 gfs_server_chdir(gfs);
317 statserv_setcontrol(0);
318 assoc->last_control = 0;
324 statserv_setcontrol(&control_block);
325 assoc->last_control = &control_block;
327 yaz_log(YLOG_DEBUG, "server select: config=%s",
328 assoc->last_control->configname);
330 assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
331 assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
332 cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
337 static void xml_config_read(void)
339 struct gfs_server **gfsp = &gfs_server_list;
340 struct gfs_listen **gfslp = &gfs_listen_list;
341 xmlNodePtr ptr = xml_config_get_root();
345 for (ptr = ptr->children; ptr; ptr = ptr->next)
347 struct _xmlAttr *attr;
348 if (ptr->type != XML_ELEMENT_NODE)
350 attr = ptr->properties;
351 if (!strcmp((const char *) ptr->name, "listen"))
354 <listen id="listenerid">tcp:@:9999</listen>
357 const char *address =
358 nmem_dup_xml_content(gfs_nmem, ptr->children);
359 for ( ; attr; attr = attr->next)
360 if (!xmlStrcmp(attr->name, BAD_CAST "id")
361 && attr->children && attr->children->type == XML_TEXT_NODE)
362 id = nmem_dup_xml_content(gfs_nmem, attr->children);
365 *gfslp = gfs_listen_new(id, address);
366 gfslp = &(*gfslp)->next;
367 *gfslp = 0; /* make listener list consistent for search */
370 else if (!strcmp((const char *) ptr->name, "server"))
372 xmlNodePtr ptr_server = ptr;
374 const char *listenref = 0;
376 struct gfs_server *gfs;
378 for ( ; attr; attr = attr->next)
379 if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
380 && attr->children && attr->children->type == XML_TEXT_NODE)
381 listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
382 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
384 && attr->children->type == XML_TEXT_NODE)
385 id = nmem_dup_xml_content(gfs_nmem, attr->children);
387 yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
389 gfs = *gfsp = gfs_server_new();
390 gfs->server_node_ptr = ptr_server;
394 struct gfs_listen *gl = gfs_listen_list;
395 for (id_no = 1; gl; gl = gl->next, id_no++)
396 if (gl->id && !strcmp(gl->id, listenref))
398 gfs->listen_ref = id_no;
402 yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
403 "config element", listenref);
405 for (ptr = ptr_server->children; ptr; ptr = ptr->next)
407 if (ptr->type != XML_ELEMENT_NODE)
409 if (!strcmp((const char *) ptr->name, "host"))
411 gfs->host = nmem_dup_xml_content(gfs_nmem,
414 else if (!strcmp((const char *) ptr->name, "config"))
416 strcpy(gfs->cb.configname,
417 nmem_dup_xml_content(gfs_nmem, ptr->children));
419 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
421 char *name = nmem_dup_xml_content(gfs_nmem, ptr->children);
422 gfs->cql_transform = cql_transform_open_fname(name);
423 if (!gfs->cql_transform)
425 yaz_log(YLOG_FATAL|YLOG_ERRNO,
426 "open CQL transform file '%s'", name);
430 else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
435 name = nmem_dup_xml_content(gfs_nmem, ptr->children);
436 if ((f = fopen(name, "r")) == 0) {
437 yaz_log(YLOG_FATAL, "can't open CCL file '%s'", name);
440 gfs->ccl_transform = ccl_qual_mk();
441 ccl_qual_file (gfs->ccl_transform, f);
444 else if (!strcmp((const char *) ptr->name, "directory"))
447 nmem_dup_xml_content(gfs_nmem, ptr->children);
449 else if (!strcmp((const char *) ptr->name, "docpath"))
452 nmem_dup_xml_content(gfs_nmem, ptr->children);
454 else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
456 gfs->cb.maxrecordsize = atoi(
457 nmem_dup_xml_content(gfs_nmem, ptr->children));
459 else if (!strcmp((const char *) ptr->name, "stylesheet"))
461 char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
462 gfs->stylesheet = (char *)
463 nmem_malloc(gfs_nmem, strlen(s) + 2);
464 sprintf(gfs->stylesheet, "/%s", s);
466 else if (!strcmp((const char *) ptr->name, "explain"))
468 ; /* being processed separately */
470 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
472 if (yaz_retrieval_configure(gfs->retrieval, ptr))
474 yaz_log(YLOG_FATAL, "%s in config %s",
475 yaz_retrieval_get_error(gfs->retrieval),
476 control_block.xml_config);
482 yaz_log(YLOG_FATAL, "Unknown element '%s' in config %s",
483 ptr->name, control_block.xml_config);
487 gfsp = &(*gfsp)->next;
494 static void xml_config_open(void)
496 if (!getcwd(gfs_root_dir, FILENAME_MAX))
498 yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
499 gfs_root_dir[0] = '\0';
502 init_control_tls = 1;
503 current_control_tls = TlsAlloc();
504 #elif YAZ_POSIX_THREADS
505 init_control_tls = 1;
506 pthread_key_create(¤t_control_tls, 0);
509 gfs_nmem = nmem_create();
511 if (control_block.xml_config[0] == '\0')
516 xml_config_doc = xmlParseFile(control_block.xml_config);
519 yaz_log(YLOG_FATAL, "Could not parse %s", control_block.xml_config);
524 int noSubstitutions = xmlXIncludeProcess(xml_config_doc);
525 if (noSubstitutions == -1)
527 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
528 control_block.xml_config);
537 static void xml_config_close(void)
542 xmlFreeDoc(xml_config_doc);
547 nmem_destroy(gfs_nmem);
549 if (init_control_tls)
550 TlsFree(current_control_tls);
551 #elif YAZ_POSIX_THREADS
552 if (init_control_tls)
553 pthread_key_delete(current_control_tls);
557 static void xml_config_add_listeners(void)
559 struct gfs_listen *gfs = gfs_listen_list;
562 for (id_no = 1; gfs; gfs = gfs->next, id_no++)
565 add_listener(gfs->address, id_no);
569 static void xml_config_bend_start(void)
571 if (control_block.xml_config[0])
573 struct gfs_server *gfs = gfs_server_list;
574 for (; gfs; gfs = gfs->next)
576 yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
578 statserv_setcontrol(&gfs->cb);
579 if (control_block.bend_start)
581 gfs_server_chdir(gfs);
582 (control_block.bend_start)(&gfs->cb);
588 yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
589 statserv_setcontrol(&control_block);
590 if (control_block.bend_start)
591 (*control_block.bend_start)(&control_block);
595 static void xml_config_bend_stop(void)
597 if (control_block.xml_config[0])
599 struct gfs_server *gfs = gfs_server_list;
600 for (; gfs; gfs = gfs->next)
602 yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
604 statserv_setcontrol(&gfs->cb);
605 if (control_block.bend_stop)
606 (control_block.bend_stop)(&gfs->cb);
611 yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
612 statserv_setcontrol(&control_block);
613 if (control_block.bend_stop)
614 (*control_block.bend_stop)(&control_block);
618 static void remove_listeners(void);
621 * handle incoming connect requests.
622 * The dynamic mode is a bit tricky mostly because we want to avoid
623 * doing all of the listening and accepting in the parent - it's
628 typedef struct _ThreadList ThreadList;
637 static ThreadList *pFirstThread;
638 static CRITICAL_SECTION Thread_CritSect;
639 static BOOL bInitialized = FALSE;
641 static void ThreadList_Initialize()
643 /* Initialize the critical Sections */
644 InitializeCriticalSection(&Thread_CritSect);
646 /* Set the first thraed */
649 /* we have been initialized */
653 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
655 /* Only one thread can go through this section at a time */
656 EnterCriticalSection(&Thread_CritSect);
659 /* Lets create our new object */
660 ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
661 pNewThread->hThread = hThread;
662 pNewThread->pIOChannel = pIOChannel;
663 pNewThread->pNext = pFirstThread;
664 pFirstThread = pNewThread;
666 /* Lets let somebody else create a new object now */
667 LeaveCriticalSection(&Thread_CritSect);
671 void statserv_remove(IOCHAN pIOChannel)
673 /* Only one thread can go through this section at a time */
674 EnterCriticalSection(&Thread_CritSect);
677 ThreadList *pCurrentThread = pFirstThread;
678 ThreadList *pNextThread;
679 ThreadList *pPrevThread =NULL;
681 /* Step through all the threads */
682 for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
684 /* We only need to compare on the IO Channel */
685 if (pCurrentThread->pIOChannel == pIOChannel)
687 /* We have found the thread we want to delete */
688 /* First of all reset the next pointers */
689 if (pPrevThread == NULL)
690 pFirstThread = pCurrentThread->pNext;
692 pPrevThread->pNext = pCurrentThread->pNext;
694 /* All we need todo now is delete the memory */
695 free(pCurrentThread);
697 /* No need to look at any more threads */
702 /* We need to look at another thread */
703 pNextThread = pCurrentThread->pNext;
704 pPrevThread = pCurrentThread;
708 /* Lets let somebody else remove an object now */
709 LeaveCriticalSection(&Thread_CritSect);
713 /* WIN32 statserv_closedown */
714 static void statserv_closedown()
716 /* Shouldn't do anything if we are not initialized */
720 HANDLE *pThreadHandles = NULL;
722 /* We need to stop threads adding and removing while we */
723 /* start the closedown process */
724 EnterCriticalSection(&Thread_CritSect);
727 /* We have exclusive access to the thread stuff now */
728 /* Y didn't i use a semaphore - Oh well never mind */
729 ThreadList *pCurrentThread = pFirstThread;
731 /* Before we do anything else, we need to shutdown the listener */
732 if (pListener != NULL)
733 iochan_destroy(pListener);
735 for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
737 /* Just destroy the IOCHAN, that should do the trick */
738 iochan_destroy(pCurrentThread->pIOChannel);
739 closesocket(pCurrentThread->pIOChannel->fd);
741 /* Keep a running count of our handles */
747 HANDLE *pCurrentHandle ;
749 /* Allocate the thread handle array */
750 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
751 pCurrentHandle = pThreadHandles;
753 for (pCurrentThread = pFirstThread;
754 pCurrentThread != NULL;
755 pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
757 /* Just the handle */
758 *pCurrentHandle = pCurrentThread->hThread;
762 /* We can now leave the critical section */
763 LeaveCriticalSection(&Thread_CritSect);
766 /* Now we can really do something */
769 yaz_log(log_server, "waiting for %d to die", iHandles);
770 /* This will now wait, until all the threads close */
771 WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
773 /* Free the memory we allocated for the handle array */
774 free(pThreadHandles);
777 xml_config_bend_stop();
778 /* No longer require the critical section, since all threads are dead */
779 DeleteCriticalSection(&Thread_CritSect);
784 void __cdecl event_loop_thread(IOCHAN iochan)
786 iochan_event_loop(&iochan);
790 static void listener(IOCHAN h, int event)
792 COMSTACK line = (COMSTACK) iochan_getdata(h);
793 IOCHAN parent_chan = line->user;
798 if (event == EVENT_INPUT)
803 if ((res = cs_listen(line, 0, 0)) < 0)
805 yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
809 return; /* incomplete */
810 yaz_log(YLOG_DEBUG, "listen ok");
811 new_line = cs_accept(line);
814 yaz_log(YLOG_FATAL, "Accept failed.");
817 yaz_log(YLOG_DEBUG, "Accept ok");
819 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
820 EVENT_INPUT, parent_chan->chan_id)))
822 yaz_log(YLOG_FATAL, "Failed to create iochan");
827 yaz_log(YLOG_DEBUG, "Creating association");
828 if (!(newas = create_association(new_chan, new_line,
829 control_block.apdufile)))
831 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
835 newas->cs_get_mask = EVENT_INPUT;
836 newas->cs_put_mask = 0;
837 newas->cs_accept_mask = 0;
839 yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
840 iochan_setdata(new_chan, newas);
841 iochan_settimeout(new_chan, 60);
843 /* Now what we need todo is create a new thread with this iochan as
845 newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
846 if (newHandle == (HANDLE) -1)
849 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
853 /* We successfully created the thread, so add it to the list */
854 statserv_add(newHandle, new_chan);
856 yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
857 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
861 yaz_log(YLOG_FATAL, "Bad event on listener.");
869 /* To save having an #ifdef in event_loop we need to
870 define this empty function
872 void statserv_remove(IOCHAN pIOChannel)
876 static void statserv_closedown(void)
880 xml_config_bend_stop();
881 for (p = pListener; p; p = p->next)
888 static void *new_session(void *vp);
889 static int no_sessions = 0;
892 static void listener(IOCHAN h, int event)
894 COMSTACK line = (COMSTACK) iochan_getdata(h);
897 if (event == EVENT_INPUT)
900 if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
901 control_block.daemon_name)) < 0)
903 yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
908 yaz_log(YLOG_WARN, "cs_listen incomplete");
911 new_line = cs_accept(line);
914 yaz_log(YLOG_FATAL, "Accept failed.");
915 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
919 if (control_block.one_shot)
922 yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
925 if (control_block.dynamic)
927 if ((res = fork()) < 0)
929 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
933 else if (res == 0) /* child */
938 for (pp = pListener; pp; pp = iochan_getnext(pp))
940 COMSTACK l = (COMSTACK)iochan_getdata(pp);
944 sprintf(nbuf, "%s(%d)", me, no_sessions);
945 yaz_log_init_prefix(nbuf);
946 /* ensure that bend_stop is not called when each child exits -
947 only for the main process .. */
948 control_block.bend_stop = 0;
957 if (control_block.threads)
959 #if YAZ_POSIX_THREADS
960 pthread_t child_thread;
961 pthread_create(&child_thread, 0, new_session, new_line);
962 pthread_detach(child_thread);
964 new_session(new_line);
968 new_session(new_line);
970 else if (event == EVENT_TIMEOUT)
972 yaz_log(log_server, "Shutting down listener.");
977 yaz_log(YLOG_FATAL, "Bad event on listener.");
982 static void *new_session(void *vp)
987 COMSTACK new_line = (COMSTACK) vp;
988 IOCHAN parent_chan = (IOCHAN) new_line->user;
990 unsigned cs_get_mask, cs_accept_mask, mask =
991 ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
992 ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
996 cs_accept_mask = mask; /* accept didn't complete */
1001 cs_accept_mask = 0; /* accept completed. */
1002 cs_get_mask = mask = EVENT_INPUT;
1005 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
1006 parent_chan->chan_id)))
1008 yaz_log(YLOG_FATAL, "Failed to create iochan");
1011 if (!(newas = create_association(new_chan, new_line,
1012 control_block.apdufile)))
1014 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
1017 newas->cs_accept_mask = cs_accept_mask;
1018 newas->cs_get_mask = cs_get_mask;
1020 iochan_setdata(new_chan, newas);
1021 iochan_settimeout(new_chan, 60);
1023 a = cs_addrstr(new_line);
1027 yaz_log_xml_errors(0, YLOG_WARN);
1028 yaz_log(log_session, "Session - OK %d %s %ld",
1029 no_sessions, a ? a : "[Unknown]", (long) getpid());
1030 if (max_sessions && no_sessions >= max_sessions)
1031 control_block.one_shot = 1;
1032 if (control_block.threads)
1034 iochan_event_loop(&new_chan);
1038 new_chan->next = pListener;
1039 pListener = new_chan;
1047 static void inetd_connection(int what)
1054 if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
1056 if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
1059 if ((assoc = create_association(chan, line,
1060 control_block.apdufile)))
1062 iochan_setdata(chan, assoc);
1063 iochan_settimeout(chan, 60);
1064 addr = cs_addrstr(line);
1065 yaz_log(log_sessiondetail, "Inetd association from %s",
1066 addr ? addr : "[UNKNOWN]");
1067 assoc->cs_get_mask = EVENT_INPUT;
1071 yaz_log(YLOG_FATAL, "Failed to create association structure");
1073 chan->next = pListener;
1078 yaz_log(YLOG_FATAL, "Failed to create iochan");
1083 yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
1088 * Set up a listening endpoint, and give it to the event-handler.
1090 static int add_listener(char *where, int listen_id)
1097 if (control_block.dynamic)
1099 else if (control_block.threads)
1104 yaz_log(log_server, "Adding %s listener on %s id=%d", mode, where,
1107 l = cs_create_host(where, 2, &ap);
1110 yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
1113 if (*control_block.cert_fname)
1114 cs_set_ssl_certificate_file(l, control_block.cert_fname);
1116 if (cs_bind(l, ap, CS_SERVER) < 0)
1118 if (cs_errno(l) == CSYSERR)
1119 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1121 yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
1126 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1127 EVENT_EXCEPT, listen_id)))
1129 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1133 iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1134 l->user = lst; /* user-defined data for COMSTACK is listener chan */
1136 /* Add listener to chain */
1137 lst->next = pListener;
1142 static void remove_listeners(void)
1144 IOCHAN l = pListener;
1145 for (; l; l = l->next)
1150 /* UNIX only (for windows we don't need to catch the signals) */
1151 static void catchchld(int num)
1153 while (waitpid(-1, 0, WNOHANG) > 0)
1155 signal(SIGCHLD, catchchld);
1159 statserv_options_block *statserv_getcontrol(void)
1162 if (init_control_tls)
1163 return (statserv_options_block *) TlsGetValue(current_control_tls);
1165 return &control_block;
1166 #elif YAZ_POSIX_THREADS
1167 if (init_control_tls)
1168 return (statserv_options_block *)
1169 pthread_getspecific(current_control_tls);
1171 return &control_block;
1173 if (current_control_block)
1174 return current_control_block;
1175 return &control_block;
1179 void statserv_setcontrol(statserv_options_block *block)
1181 if (gfs_root_dir[0])
1183 if (chdir(gfs_root_dir))
1184 yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
1187 if (init_control_tls)
1188 TlsSetValue(current_control_tls, block);
1189 #elif YAZ_POSIX_THREADS
1190 if (init_control_tls)
1191 pthread_setspecific(current_control_tls, block);
1193 current_control_block = block;
1197 static void statserv_reset(void)
1201 static void daemon_handler(void *data)
1203 IOCHAN *pListener = data;
1204 iochan_event_loop(pListener);
1207 static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
1211 /* We need to initialize the thread list */
1212 ThreadList_Initialize();
1222 if ((me = strrchr(argv[0], sep)))
1223 me++; /* get the basename */
1226 programname = argv[0];
1228 if (control_block.options_func(argc, argv))
1233 xml_config_bend_start();
1235 if (control_block.inetd)
1238 ; /* no inetd on Windows */
1240 inetd_connection(control_block.default_proto);
1245 xml_config_add_listeners();
1247 if (!pListener && *control_block.default_listen)
1248 add_listener(control_block.default_listen, 0);
1251 if (control_block.dynamic)
1252 signal(SIGCHLD, catchchld);
1255 if (pListener == NULL)
1259 yaz_log(YLOG_DEBUG, "Entering event loop.");
1261 yaz_daemon(programname,
1262 (control_block.background ? YAZ_DAEMON_FORK : 0),
1263 daemon_handler, &pListener,
1264 *control_block.pid_fname ? control_block.pid_fname : 0,
1265 *control_block.setuid ? control_block.setuid : 0);
1269 static void option_copy(char *dst, const char *src)
1271 strncpy(dst, src ? src : "", 127);
1275 int check_options(int argc, char **argv)
1280 yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
1284 while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:",
1285 argv, argc, &arg)) != -2)
1290 if (add_listener(arg, 0))
1291 return 1; /* failed to create listener */
1294 control_block.one_shot = 1;
1295 control_block.dynamic = 0;
1298 control_block.default_proto = PROTO_Z3950;
1301 fprintf(stderr, "%s: SR protocol no longer supported\n", me);
1305 control_block.dynamic = 0;
1308 #if YAZ_POSIX_THREADS
1309 control_block.dynamic = 0;
1310 control_block.threads = 1;
1312 fprintf(stderr, "%s: Threaded mode not available.\n", me);
1317 option_copy(control_block.logfile, arg);
1318 yaz_log_init_file(control_block.logfile);
1322 fprintf(stderr, "%s: Specify time format for log file.\n", me);
1325 yaz_log_time_format(arg);
1328 yaz_log_init_level(yaz_log_mask_str(arg));
1332 option_copy(control_block.apdufile, arg);
1335 option_copy(control_block.setuid, arg);
1338 option_copy(control_block.configname, arg);
1341 option_copy(control_block.cert_fname, arg);
1344 option_copy(control_block.daemon_name, arg);
1347 if (!arg || !(r = atoi(arg)))
1349 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1352 control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
1355 if (!arg || !(r = atoi(arg)))
1357 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1360 control_block.maxrecordsize = r * 1024;
1363 control_block.keepalive = 0;
1366 control_block.inetd = 1;
1376 max_sessions = atoi(arg);
1379 option_copy(control_block.pid_fname, arg);
1383 option_copy(control_block.xml_config, arg);
1385 fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1390 control_block.background = 1;
1393 if (!arg || !(r = atoi(arg)))
1395 fprintf(stderr, "%s: Specify positive size for -r.\n", me);
1398 yaz_log_init_max_size(r * 1024);
1401 fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1402 " -l <logfile> -u <user> -c <config> -t <minutes>"
1403 " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1404 " -ziDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
1411 void statserv_sc_stop(yaz_sc_t s)
1413 statserv_closedown();
1417 int statserv_main(int argc, char **argv,
1418 bend_initresult *(*bend_init)(bend_initrequest *r),
1419 void (*bend_close)(void *handle))
1422 struct statserv_options_block *cb = &control_block;
1424 /* control block does not have service_name member on Unix */
1425 yaz_sc_t s = yaz_sc_create(
1427 cb->service_name, cb->service_display_name
1433 cb->bend_init = bend_init;
1434 cb->bend_close = bend_close;
1436 ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
1444 * c-file-style: "Stroustrup"
1445 * indent-tabs-mode: nil
1447 * vim: shiftwidth=4 tabstop=8 expandtab