/*
- * Copyright (C) 1994, Index Data I/S
- * All rights reserved.
+ * Copyright (c) 1995-1998, Index Data
+ * See the file LICENSE for details.
* Sebastian Hammer, Adam Dickmeiss
*
+ * NT server based on threads by
+ * Chas Woodfield, Fretwell Downing Datasystems.
+ *
* $Log: statserv.c,v $
- * Revision 1.8 1995-03-20 09:46:26 quinn
+ * Revision 1.52 1998-08-21 14:13:34 adam
+ * Added GNU Configure script to build Makefiles.
+ *
+ * Revision 1.51 1998/07/07 15:51:03 adam
+ * Changed server so that it stops if bind fails - "address already in
+ * use" typically causes this.
+ *
+ * Revision 1.50 1998/06/22 11:32:39 adam
+ * Added 'conditional cs_listen' feature.
+ *
+ * Revision 1.49 1998/02/27 14:04:55 adam
+ * Fixed bug in statserv_remove.
+ *
+ * Revision 1.48 1998/02/11 11:53:36 adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.47 1998/02/10 10:28:57 adam
+ * Added app_name, service_dependencies, service_display_name and
+ * options_func. options_func allows us to specify a different function
+ * to interogate the command line arguments. The other members allow us
+ * to pass the full service details accross to the service manager (CW).
+ *
+ *
+ * Revision 1.46 1998/01/30 15:24:57 adam
+ * Fixed bug in inetd code. The server listened on tcp:@:9999 even
+ * though it was started in inetd mode.
+ *
+ * Revision 1.45 1998/01/29 13:30:23 adam
+ * Better event handle system for NT/Unix.
+ *
+ * Revision 1.44 1997/11/07 13:31:52 adam
+ * Added NT Service name part of statserv_options_block. Moved NT
+ * service utility to server library.
+ *
+ * Revision 1.43 1997/10/31 12:20:09 adam
+ * Improved memory debugging for xmalloc/nmem.c. References to NMEM
+ * instead of ODR in n ESPEC-1 handling in source d1_espec.c.
+ * Bug fix: missing fclose in data1_read_espec1.
+ *
+ * Revision 1.42 1997/10/27 14:03:02 adam
+ * Added new member to statserver_options_block, pre_init, which
+ * specifies a callback to be invoked after command line parsing and
+ * before the server listens for the first time.
+ *
+ * Revision 1.41 1997/09/29 07:19:32 adam
+ * Server library uses nmem_init/nmem_exit. The log prefix no longer
+ * includes leading path on NT.
+ *
+ * Revision 1.40 1997/09/17 12:10:41 adam
+ * YAZ version 1.4.
+ *
+ * Revision 1.39 1997/09/09 10:10:19 adam
+ * Another MSV5.0 port. Changed projects to include proper
+ * library/include paths.
+ * Server starts server in test-mode when no options are given.
+ *
+ * Revision 1.38 1997/09/04 14:19:14 adam
+ * Added credits.
+ *
+ * Revision 1.37 1997/09/01 08:53:01 adam
+ * New windows NT/95 port using MSV5.0. The test server 'ztest' was
+ * moved a separate directory. MSV5.0 project server.dsp created.
+ * As an option, the server can now operate as an NT service.
+ *
+ * Revision 1.36 1996/07/06 19:58:36 quinn
+ * System headerfiles gathered in yconfig
+ *
+ * Revision 1.35 1996/05/29 10:03:28 quinn
+ * Options work
+ *
+ * Revision 1.34 1996/02/21 13:12:07 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.33 1996/02/10 12:23:49 quinn
+ * Enable inetd operations fro TCP/IP stack
+ *
+ * Revision 1.32 1996/01/19 15:41:52 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.31 1995/11/17 11:09:39 adam
+ * Added new option '-c' to specify configuration name in control block.
+ *
+ * Revision 1.30 1995/11/01 13:54:59 quinn
+ * Minor adjustments
+ *
+ * Revision 1.29 1995/10/30 12:41:29 quinn
+ * Added hostname lookup for server.
+ *
+ * Revision 1.28 1995/09/29 17:12:30 quinn
+ * Smallish
+ *
+ * Revision 1.27 1995/09/27 15:03:02 quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.26 1995/08/29 14:44:51 quinn
+ * Reset timeouts.
+ *
+ * Revision 1.25 1995/08/29 11:18:02 quinn
+ * Added code to receive close
+ *
+ * Revision 1.24 1995/06/16 10:31:39 quinn
+ * Added session timeout.
+ *
+ * Revision 1.23 1995/06/15 12:30:48 quinn
+ * Setuid-facility.
+ *
+ * Revision 1.22 1995/06/15 07:45:17 quinn
+ * Moving to v3.
+ *
+ * Revision 1.21 1995/06/06 08:15:40 quinn
+ * Cosmetic.
+ *
+ * Revision 1.20 1995/05/29 08:12:09 quinn
+ * Moved oid to util
+ *
+ * Revision 1.19 1995/05/16 09:37:27 quinn
+ * Fixed bug
+ *
+ * Revision 1.18 1995/05/16 08:51:09 quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.17 1995/05/15 11:56:42 quinn
+ * Asynchronous facilities. Restructuring of seshigh code.
+ *
+ * Revision 1.16 1995/04/10 10:23:40 quinn
+ * Some work to add scan and other things.
+ *
+ * Revision 1.15 1995/03/31 10:16:51 quinn
+ * Fixed logging.
+ *
+ * Revision 1.14 1995/03/31 09:18:58 quinn
+ * Added logging.
+ *
+ * Revision 1.13 1995/03/30 16:08:39 quinn
+ * Little mods.
+ *
+ * Revision 1.12 1995/03/30 13:29:02 quinn
+ * Smallish
+ *
+ * Revision 1.11 1995/03/30 12:18:17 quinn
+ * Fixed bug.
+ *
+ * Revision 1.10 1995/03/29 15:40:16 quinn
+ * Ongoing work. Statserv is now dynamic by default
+ *
+ * Revision 1.9 1995/03/27 08:34:30 quinn
+ * Added dynamic server functionality.
+ * Released bindings to session.c (is now redundant)
+ *
+ * Revision 1.8 1995/03/20 09:46:26 quinn
* Added osi support.
*
* Revision 1.7 1995/03/16 13:29:04 quinn
*
*/
-/*
- * Simple, static server. I wouldn't advise a static server unless you
- * really have to, but it's great for debugging memory management. :)
- */
-
+#include <yconfig.h>
#include <stdio.h>
+#include <string.h>
+#ifdef WINDOWS
+#include <process.h>
+#include <winsock.h>
+#include <direct.h>
+#include "service.h"
+#else
+#include <unistd.h>
+#include <pwd.h>
+#endif
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
#include <options.h>
-#include <eventl.h>
-#include <session.h>
-#include <eventl.h>
#include <comstack.h>
#include <tcpip.h>
+#ifdef USE_XTIMOSI
#include <xmosi.h>
+#endif
+#include <log.h>
+#include "eventl.h"
+#include "session.h"
+#include <statserv.h>
-#include <unistd.h>
-#include <fcntl.h>
+static IOCHAN pListener = NULL;
-static char *me = "";
+static char *me = "statserver";
+/*
+ * default behavior.
+ */
+int check_options(int argc, char **argv);
+statserv_options_block control_block = {
+ 1, /* dynamic mode */
+ LOG_DEFAULT_LEVEL, /* log level */
+ "", /* no PDUs */
+ "", /* diagnostic output to stderr */
+ "tcp:@:9999", /* default listener port */
+ PROTO_Z3950, /* default application protocol */
+ 60, /* idle timeout (minutes) */
+ 1024*1024, /* maximum PDU size (approx.) to allow */
+ "default-config", /* configuration name to pass to backend */
+ "", /* set user id */
+ NULL, /* pre init handler */
+ check_options, /* Default routine, for checking the run-time arguments */
+ 0 /* default value for inet deamon */
-#define DEFAULT_LISTENER "tcp:localhost:9999"
+#ifdef WINDOWS
+ ,"Z39.50 Server", /* NT Service Name */
+ "Server", /* NT application Name */
+ "", /* NT Service Dependencies */
+ "Z39.50 Server" /* NT Service Display Name */
+#endif /* WINDOWS */
+};
/*
* handle incoming connect requests.
+ * The dynamic mode is a bit tricky mostly because we want to avoid
+ * doing all of the listening and accepting in the parent - it's
+ * safer that way.
*/
-void listener(IOCHAN h, int event)
+#ifdef WINDOWS
+
+typedef struct _ThreadList ThreadList;
+
+struct _ThreadList
+{
+ HANDLE hThread;
+ IOCHAN pIOChannel;
+ ThreadList *pNext;
+};
+
+static ThreadList *pFirstThread;
+static CRITICAL_SECTION Thread_CritSect;
+static BOOL bInitialized = FALSE;
+
+static void ThreadList_Initialize()
+{
+ /* Initialize the critical Sections */
+ InitializeCriticalSection(&Thread_CritSect);
+
+ /* Set the first thraed */
+ pFirstThread = NULL;
+
+ /* we have been initialized */
+ bInitialized = TRUE;
+}
+
+static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
+{
+ /* Only one thread can go through this section at a time */
+ EnterCriticalSection(&Thread_CritSect);
+
+ {
+ /* Lets create our new object */
+ ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
+ pNewThread->hThread = hThread;
+ pNewThread->pIOChannel = pIOChannel;
+ pNewThread->pNext = pFirstThread;
+ pFirstThread = pNewThread;
+
+ /* Lets let somebody else create a new object now */
+ LeaveCriticalSection(&Thread_CritSect);
+ }
+}
+
+void statserv_remove(IOCHAN pIOChannel)
+{
+ /* Only one thread can go through this section at a time */
+ EnterCriticalSection(&Thread_CritSect);
+
+ {
+ ThreadList *pCurrentThread = pFirstThread;
+ ThreadList *pNextThread;
+ ThreadList *pPrevThread =NULL;
+
+ /* Step through alll the threads */
+ for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
+ {
+ /* We only need to compare on the IO Channel */
+ if (pCurrentThread->pIOChannel == pIOChannel)
+ {
+ /* We have found the thread we want to delete */
+ /* First of all reset the next pointers */
+ if (pPrevThread == NULL)
+ pFirstThread = pCurrentThread->pNext;
+ else
+ pPrevThread->pNext = pCurrentThread->pNext;
+
+ /* All we need todo now is delete the memory */
+ free(pCurrentThread);
+
+ /* No need to look at any more threads */
+ pNextThread = NULL;
+ }
+ else
+ {
+ /* We need to look at another thread */
+ pNextThread = pCurrentThread->pNext;
+ pPrevThread = pCurrentThread;
+ }
+ }
+
+ /* Lets let somebody else remove an object now */
+ LeaveCriticalSection(&Thread_CritSect);
+ }
+}
+
+void statserv_closedown()
+{
+ /* Shouldn't do anything if we are not initialized */
+ if (bInitialized)
+ {
+ int iHandles = 0;
+ HANDLE *pThreadHandles = NULL;
+
+ /* We need to stop threads adding and removing while we */
+ /* start the closedown process */
+ EnterCriticalSection(&Thread_CritSect);
+
+ {
+ /* We have exclusive access to the thread stuff now */
+ /* Y didn't i use a semaphore - Oh well never mind */
+ ThreadList *pCurrentThread = pFirstThread;
+
+ /* Before we do anything else, we need to shutdown the listener */
+ if (pListener != NULL)
+ iochan_destroy(pListener);
+
+ for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
+ {
+ /* Just destroy the IOCHAN, that should do the trick */
+ iochan_destroy(pCurrentThread->pIOChannel);
+
+ /* Keep a running count of our handles */
+ iHandles++;
+ }
+
+ if (iHandles > 0)
+ {
+ HANDLE *pCurrentHandle ;
+
+ /* Allocate the thread handle array */
+ pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
+ pCurrentHandle = pThreadHandles;
+
+ for (pCurrentThread = pFirstThread;
+ pCurrentThread != NULL;
+ pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
+ {
+ /* Just the handle */
+ *pCurrentHandle = pCurrentThread->hThread;
+ }
+ }
+
+ /* We can now leave the critical section */
+ LeaveCriticalSection(&Thread_CritSect);
+ }
+
+ /* Now we can really do something */
+ if (iHandles > 0)
+ {
+ /* This will now wait, until all the threads close */
+ WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
+
+ /* Free the memory we allocated for the handle array */
+ free(pThreadHandles);
+ }
+
+ /* No longer require the critical section, since all threads are dead */
+ DeleteCriticalSection(&Thread_CritSect);
+ }
+}
+
+int __stdcall event_loop_thread (IOCHAN iochan)
+{
+ return event_loop (&iochan);
+}
+
+static void listener(IOCHAN h, int event)
+{
+ COMSTACK line = (COMSTACK) iochan_getdata(h);
+ association *newas;
+ int res;
+ HANDLE NewHandle;
+
+ if (event == EVENT_INPUT)
+ {
+ if ((res = cs_listen(line, 0, 0)) < 0)
+ {
+ logf(LOG_FATAL, "cs_listen failed");
+ return;
+ }
+ else if (res == 1)
+ return;
+ logf(LOG_DEBUG, "listen ok");
+ iochan_setevent(h, EVENT_OUTPUT);
+ iochan_setflags(h, EVENT_OUTPUT | EVENT_EXCEPT); /* set up for acpt */
+ }
+ else if (event == EVENT_OUTPUT)
+ {
+ COMSTACK new_line;
+ IOCHAN new_chan;
+ char *a = NULL;
+ DWORD ThreadId;
+
+ if (!(new_line = cs_accept(line)))
+ {
+ logf(LOG_FATAL, "Accept failed.");
+ iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
+ return;
+ }
+ logf(LOG_DEBUG, "Accept ok");
+
+ if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
+ EVENT_INPUT)))
+ {
+ logf(LOG_FATAL, "Failed to create iochan");
+ iochan_destroy(h);
+ return;
+ }
+
+ logf(LOG_DEBUG, "Creating association");
+ if (!(newas = create_association(new_chan, new_line)))
+ {
+ logf(LOG_FATAL, "Failed to create new assoc.");
+ iochan_destroy(h);
+ return;
+ }
+ logf(LOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
+ iochan_setdata(new_chan, newas);
+ iochan_settimeout(new_chan, control_block.idle_timeout * 60);
+#ifndef WINDOWS
+ logf(LOG_DEBUG, "Determining client address");
+ a = cs_addrstr(new_line);
+ logf(LOG_LOG, "Accepted connection from %s", a ? a : "[Unknown]");
+#endif
+ /* Now what we need todo is create a new thread with this iochan as
+ the parameter */
+ /* if (CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)event_loop_thread,
+ new_chan, 0, &ThreadId) == NULL) */
+ /* Somehow, somewhere we need to store this thread id, otherwise we
+ won't be able to close cleanly */
+ NewHandle = (HANDLE)_beginthreadex(NULL, 0, event_loop_thread,
+ new_chan, 0, &ThreadId);
+ if (NewHandle == (HANDLE)-1)
+ {
+
+ logf(LOG_FATAL|LOG_ERRNO, "Failed to create new thread.");
+ iochan_destroy(h);
+ return;
+ }
+ /* We successfully created the thread, so add it to the list */
+ statserv_add(NewHandle, new_chan);
+
+ logf(LOG_DEBUG, "Created new thread, iochan %p", new_chan);
+ iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
+ }
+ else
+ {
+ logf(LOG_FATAL, "Bad event on listener.");
+ iochan_destroy(h);
+ return;
+ }
+}
+
+#else /* WINDOWS */
+
+/* To save having an #ifdef in event_loop we need to define this empty function */
+void statserv_remove(IOCHAN pIOChannel)
+{
+}
+
+void statserv_closedown()
+{
+ IOCHAN p;
+ for (p = pListener; p; p = p->next)
+ iochan_destroy(p);
+}
+
+static int check_ip(void *cd, const char *addr, int len, int type)
+{
+ const unsigned char *ip = (const unsigned char *) addr;
+ int i;
+ char str[64];
+
+ sprintf (str, "%u", *ip);
+ for (i = 1; i<4; i++)
+ sprintf (str + strlen(str), ".%u", ip[i]);
+ logf (LOG_DEBUG, "ip %s", str);
+ return 0;
+}
+
+static void listener(IOCHAN h, int event)
{
COMSTACK line = (COMSTACK) iochan_getdata(h);
association *newas;
+ static int hand[2];
+ static int child = 0;
+ int res;
if (event == EVENT_INPUT)
{
- if (cs_listen(line, 0, 0) < 0)
+ if (control_block.dynamic && !child)
{
- if (cs_errno(line) == CSNODATA)
+ int res;
+
+ if (pipe(hand) < 0)
+ {
+ logf(LOG_FATAL|LOG_ERRNO, "pipe");
+ iochan_destroy(h);
+ return;
+ }
+ if ((res = fork()) < 0)
+ {
+ logf(LOG_FATAL|LOG_ERRNO, "fork");
+ iochan_destroy(h);
+ return;
+ }
+ else if (res == 0) /* child */
+ {
+ char nbuf[100];
+ IOCHAN pp;
+
+ close(hand[0]);
+ child = 1;
+ for (pp = pListener; pp; pp = iochan_getnext(pp))
+ {
+ if (pp != h)
+ {
+ COMSTACK l = (COMSTACK)iochan_getdata(pp);
+ cs_close(l);
+ iochan_destroy(pp);
+ }
+ }
+ sprintf(nbuf, "%s(%d)", me, getpid());
+ log_init(control_block.loglevel, nbuf, 0);
+ }
+ else /* parent */
+ {
+ close(hand[1]);
+ /* wait for child to take the call */
+ for (;;)
+ {
+ char dummy[1];
+ int res;
+
+ if ((res = read(hand[0], dummy, 1)) < 0 && errno != EINTR)
+ {
+ logf(LOG_FATAL|LOG_ERRNO, "handshake read");
+ return;
+ }
+ else if (res >= 0)
+ break;
+ }
+ logf(LOG_DEBUG, "P: Child has taken the call");
+ close(hand[0]);
return;
- fprintf(stderr, "cs_listen failed.\n");
- exit(1);
+ }
}
+ if ((res = cs_listen_check(line, 0, 0, check_ip, 0)) < 0)
+ {
+ logf(LOG_WARN, "cs_listen failed");
+ return;
+ }
+ else if (res == 1)
+ return;
+ logf(LOG_DEBUG, "listen ok");
iochan_setevent(h, EVENT_OUTPUT);
iochan_setflags(h, EVENT_OUTPUT | EVENT_EXCEPT); /* set up for acpt */
}
+ /* in dynamic mode, only the child ever comes down here */
else if (event == EVENT_OUTPUT)
{
COMSTACK new_line;
IOCHAN new_chan;
+ char *a;
- if (!(new_line = cs_accept(line)))
- {
- fprintf(stderr, "Accept failed.\n");
- exit(1);
+ if (!(new_line = cs_accept(line)))
+ {
+ logf(LOG_FATAL, "Accept failed.");
+ iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
+ return;
+ }
+ logf(LOG_DEBUG, "accept ok");
+ if (control_block.dynamic)
+ {
+ IOCHAN pp;
+ /* close our half of the listener socket */
+ for (pp = pListener; pp; pp = iochan_getnext(pp))
+ {
+ COMSTACK l = (COMSTACK)iochan_getdata(pp);
+ cs_close(l);
+ iochan_destroy(pp);
+ }
+ /* release dad */
+ logf(LOG_DEBUG, "Releasing parent");
+ close(hand[1]);
}
+ else
+ iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
+
if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
EVENT_INPUT)))
{
- fprintf(stderr, "Failed to create iochan\n");
- exit(1);
+ logf(LOG_FATAL, "Failed to create iochan");
+ iochan_destroy(h);
+ return;
}
+ new_chan->next = pListener;
+ pListener = new_chan;
if (!(newas = create_association(new_chan, new_line)))
{
- fprintf(stderr, "Failed to create new assoc.\n");
- exit(1);
+ logf(LOG_FATAL, "Failed to create new assoc.");
+ iochan_destroy(h);
+ return;
}
iochan_setdata(new_chan, newas);
- iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset for listen */
+ iochan_settimeout(new_chan, control_block.idle_timeout * 60);
+ a = cs_addrstr(new_line);
+ logf(LOG_LOG, "Accepted connection from %s", a ? a : "[Unknown]");
}
else
{
- fprintf(stderr, "Bad event on listener.\n");
- exit(1);
+ logf(LOG_FATAL, "Bad event on listener.");
+ iochan_destroy(h);
+ return;
+ }
+}
+
+#endif /* WINDOWS */
+
+static void inetd_connection(int what)
+{
+ COMSTACK line;
+ IOCHAN chan;
+ association *assoc;
+ char *addr;
+
+ if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
+ {
+ if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT)))
+ {
+ if ((assoc = create_association(chan, line)))
+ {
+ iochan_setdata(chan, assoc);
+ iochan_settimeout(chan, control_block.idle_timeout * 60);
+ addr = cs_addrstr(line);
+ logf(LOG_LOG, "Inetd association from %s", addr ? addr : "[UNKNOWN]");
+ }
+ else
+ {
+ logf(LOG_FATAL, "Failed to create association structure");
+ }
+ chan->next = pListener;
+ pListener = chan;
+ }
+ else
+ {
+ logf(LOG_FATAL, "Failed to create iochan");
+ }
+ }
+ else
+ {
+ logf(LOG_ERRNO|LOG_FATAL, "Failed to create comstack on socket 0");
}
}
/*
* Set up a listening endpoint, and give it to the event-handler.
*/
-void add_listener(char *where)
+static void add_listener(char *where, int what)
{
COMSTACK l;
CS_TYPE type;
char mode[100], addr[100];
void *ap;
- IOCHAN lst;
+ IOCHAN lst = NULL;
- fprintf(stderr, "Adding listener on %s\n", where);
if (!where || sscanf(where, "%[^:]:%s", mode, addr) != 2)
{
- fprintf(stderr, "%s: Address format: ('tcp'|'osi')':'<address>.\n",
- me);
- exit(1);
+ logf (LOG_WARN, "%s: Address format: ('tcp'|'osi')':'<address>", me);
+ return;
}
if (!strcmp(mode, "tcp"))
- {
- if (!(ap = tcpip_strtoaddr(addr)))
- {
- fprintf(stderr, "Address resolution failed for TCP.\n");
- exit(1);
- }
type = tcpip_type;
- }
else if (!strcmp(mode, "osi"))
{
- if (!(ap = mosi_strtoaddr(addr)))
- {
- fprintf(stderr, "Address resolution failed for TCP.\n");
- exit(1);
- }
+#ifdef USE_XTIMOSI
type = mosi_type;
+#else
+ logf (LOG_WARN, "OSI Transport not allowed by configuration.");
+ return;
+#endif
}
else
{
- fprintf(stderr, "You must specify either 'osi:' or 'tcp:'.\n");
- exit(1);
+ logf (LOG_WARN, "You must specify either 'osi:' or 'tcp:'");
+ return;
+ }
+ logf(LOG_LOG, "Adding %s %s listener on %s",
+ control_block.dynamic ? "dynamic" : "static",
+ what == PROTO_SR ? "SR" : "Z3950", where);
+ if (!(l = cs_create(type, 0, what)))
+ {
+ logf(LOG_FATAL|LOG_ERRNO, "Failed to create listener");
+ return;
}
- if (!(l = cs_create(type, 0)))
+ ap = cs_straddr (l, addr);
+ if (!ap)
{
- fprintf(stderr, "Failed to create listener\n");
- exit(1);
+ fprintf(stderr, "Address resolution failed.\n");
+ cs_close (l);
+ return;
}
if (cs_bind(l, ap, CS_SERVER) < 0)
{
- fprintf(stderr, "Failed to bind.\n");
- perror(where);
- exit(1);
+ logf(LOG_FATAL|LOG_ERRNO, "Failed to bind to %s", where);
+ cs_close (l);
+ return;
}
if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
EVENT_EXCEPT)))
{
- fprintf(stderr, "Failed to create IOCHAN-type\n");
- exit(1);
+ logf(LOG_FATAL|LOG_ERRNO, "Failed to create IOCHAN-type");
+ cs_close (l);
+ return;
}
iochan_setdata(lst, l);
+
+ /* Ensure our listener chain is setup properly */
+ lst->next = pListener;
+ pListener = lst;
}
-int statserv_main(int argc, char **argv)
+#ifndef WINDOWS
+/* For windows we don't need to catch the signals */
+static void catchchld(int num)
{
- int ret, listeners = 0;
- char *arg;
+ while (waitpid(-1, 0, WNOHANG) > 0)
+ ;
+ signal(SIGCHLD, catchchld);
+}
+#endif /* WINDOWS */
+
+statserv_options_block *statserv_getcontrol(void)
+{
+ static statserv_options_block cb;
+
+ memcpy(&cb, &control_block, sizeof(cb));
+ return &cb;
+}
+void statserv_setcontrol(statserv_options_block *block)
+{
+ memcpy(&control_block, block, sizeof(*block));
+}
+
+int statserv_start(int argc, char **argv)
+{
+ int ret;
+
+ nmem_init ();
+#ifdef WINDOWS
+ /* We need to initialize the thread list */
+ ThreadList_Initialize();
+#endif /* WINDOWS */
+
+#ifdef WINDOWS
+ if ((me = strrchr (argv[0], '\\')))
+ me++;
+ else
+ me = argv[0];
+#else
me = argv[0];
- while ((ret = options("l:", argv, argc, &arg)) != -2)
+#endif
+ if (control_block.options_func(argc, argv))
+ return(1);
+
+#ifndef WINDOWS
+ if (control_block.inetd)
+ inetd_connection(control_block.default_proto);
+ else
+ {
+ if (control_block.pre_init)
+ (*control_block.pre_init)(&control_block);
+ if (control_block.dynamic)
+ signal(SIGCHLD, catchchld);
+ }
+ if (*control_block.setuid)
+ {
+ struct passwd *pw;
+
+ if (!(pw = getpwnam(control_block.setuid)))
+ {
+ logf(LOG_FATAL, "%s: Unknown user", control_block.setuid);
+ return(1);
+ }
+ if (setuid(pw->pw_uid) < 0)
+ {
+ logf(LOG_FATAL|LOG_ERRNO, "setuid");
+ exit(1);
+ }
+ }
+#endif /* WINDOWS */
+
+ if ((pListener == NULL) && *control_block.default_listen)
+ add_listener(control_block.default_listen,
+ control_block.default_proto);
+
+ if (pListener == NULL)
+ ret = 1;
+ else
+ {
+ logf(LOG_LOG, "Entering event loop.");
+ ret = event_loop(&pListener);
+ }
+ nmem_exit ();
+ return ret;
+}
+
+int check_options(int argc, char **argv)
+{
+ int ret = 0, r;
+ char *arg;
+
+ while ((ret = options("a:iszSl:v:u:c:w:t:k:", argv, argc, &arg)) != -2)
+ {
switch (ret)
{
- case 0: me = arg; break;
- case 'l': add_listener(arg); listeners++; break;
- default:
- fprintf(stderr, "Usage: %s [-l <listener-addr>]\n", me);
- exit(1);
- }
- if (!listeners)
- add_listener(DEFAULT_LISTENER);
- return event_loop();
+ case 0:
+ add_listener(arg, control_block.default_proto);
+ break;
+ case 'z':
+ control_block.default_proto = PROTO_Z3950;
+ break;
+ case 's':
+ control_block.default_proto = PROTO_SR;
+ break;
+ case 'S':
+ control_block.dynamic = 0;
+ break;
+ case 'l':
+ strcpy(control_block.logfile, arg ? arg : "");
+ log_init(control_block.loglevel, me, control_block.logfile);
+ break;
+ case 'v':
+ control_block.loglevel = log_mask_str(arg);
+ log_init(control_block.loglevel, me, control_block.logfile);
+ break;
+ case 'a':
+ strcpy(control_block.apdufile, arg ? arg : "");
+ break;
+ case 'u':
+ strcpy(control_block.setuid, arg ? arg : "");
+ break;
+ case 'c':
+ strcpy(control_block.configname, arg ? arg : "");
+ break;
+ case 't':
+ if (!arg || !(r = atoi(arg)))
+ {
+ fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
+ return(1);
+ }
+ control_block.idle_timeout = r;
+ break;
+ case 'k':
+ if (!arg || !(r = atoi(arg)))
+ {
+ fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
+ return(1);
+ }
+ control_block.maxrecordsize = r * 1024;
+ break;
+ case 'i':
+ control_block.inetd = 1;
+ break;
+ case 'w':
+ if (chdir(arg))
+ {
+ perror(arg);
+ return(1);
+ }
+ break;
+ default:
+ fprintf(stderr, "Usage: %s [ -i -a <pdufile> -v <loglevel>"
+ " -l <logfile> -u <user> -c <config> -t <minutes>"
+ " -k <kilobytes>"
+ " -zsS <listener-addr> -w <directory> ... ]\n", me);
+ return(1);
+ }
+ }
+ return 0;
+}
+
+#ifdef WINDOWS
+typedef struct _Args
+{
+ char **argv;
+ int argc;
+} Args;
+
+static Args ArgDetails;
+
+/* name of the executable */
+#define SZAPPNAME "server"
+
+/* list of service dependencies - "dep1\0dep2\0\0" */
+#define SZDEPENDENCIES ""
+
+int statserv_main(int argc, char **argv)
+{
+ statserv_options_block *cb = statserv_getcontrol();
+
+ /* Lets setup the Arg structure */
+ ArgDetails.argc = argc;
+ ArgDetails.argv = argv;
+
+ /* Now setup the service with the service controller */
+ SetupService(argc, argv, &ArgDetails, SZAPPNAME,
+ cb->service_name, /* internal service name */
+ cb->service_name, /* displayed name of the service */
+ SZDEPENDENCIES);
+ return 0;
+}
+
+int StartAppService(void *pHandle, int argc, char **argv)
+{
+ /* Initializes the App */
+ return 1;
+}
+
+void RunAppService(void *pHandle)
+{
+ Args *pArgs = (Args *)pHandle;
+
+ /* Starts the app running */
+ statserv_start(pArgs->argc, pArgs->argv);
+}
+
+void StopAppService(void *pHandle)
+{
+ /* Stops the app */
+ statserv_closedown();
+}
+#else
+int statserv_main(int argc, char **argv)
+{
+ int ret = statserv_start (argc, argv);
+ statserv_closedown ();
+ return ret;
}
+#endif
projects / yaz-moved-to-github.git / blobdiff