/*
- * Copyright (c) 1995-1997, Index Data
+ * 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 Datasystem.
+ * Chas Woodfield, Fretwell Downing Datasystems.
*
* $Log: statserv.c,v $
- * Revision 1.39 1997-09-09 10:10:19 adam
+ * 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.
#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>
#include <errno.h>
#include <options.h>
-#include "eventl.h"
-#include "session.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>
-static IOCHAN pListener;
+static IOCHAN pListener = NULL;
static char *me = "statserver";
/*
* default behavior.
*/
-static statserv_options_block control_block = {
+int check_options(int argc, char **argv);
+statserv_options_block control_block = {
1, /* dynamic mode */
LOG_DEFAULT_LEVEL, /* log level */
"", /* no PDUs */
60, /* idle timeout (minutes) */
1024*1024, /* maximum PDU size (approx.) to allow */
"default-config", /* configuration name to pass to backend */
- "" /* set user id */
+ "", /* set user id */
+ NULL, /* pre init handler */
+ check_options, /* Default routine, for checking the run-time arguments */
+ 0 /* default value for inet deamon */
+
+#ifdef WINDOWS
+ ,"Z39.50 Server", /* NT Service Name */
+ "Server", /* NT application Name */
+ "", /* NT Service Dependencies */
+ "Z39.50 Server" /* NT Service Display Name */
+#endif /* WINDOWS */
};
/*
typedef struct _ThreadList ThreadList;
-typedef struct _ThreadList
+struct _ThreadList
{
HANDLE hThread;
IOCHAN pIOChannel;
ThreadList *pNext;
-} ThreadList;
+};
static ThreadList *pFirstThread;
static CRITICAL_SECTION Thread_CritSect;
static void ThreadList_Initialize()
{
/* Initialize the critical Sections */
- InitializeCriticalSection(&Thread_CritSect);
+ InitializeCriticalSection(&Thread_CritSect);
/* Set the first thraed */
- pFirstThread = NULL;
+ pFirstThread = NULL;
- /* we have been initialized */
- bInitialized = TRUE;
+ /* we have been initialized */
+ bInitialized = TRUE;
}
static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
{
/* We need to look at another thread */
pNextThread = pCurrentThread->pNext;
+ pPrevThread = pCurrentThread;
}
}
}
}
+int __stdcall event_loop_thread (IOCHAN iochan)
+{
+ return event_loop (&iochan);
+}
+
static void listener(IOCHAN h, int event)
{
COMSTACK line = (COMSTACK) iochan_getdata(h);
{
if ((res = cs_listen(line, 0, 0)) < 0)
{
- logf(LOG_FATAL, "cs_listen failed.");
+ logf(LOG_FATAL, "cs_listen failed");
return;
}
else if (res == 1)
iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
return;
}
- logf(LOG_DEBUG, "accept ok");
+ logf(LOG_DEBUG, "Accept ok");
- if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, EVENT_INPUT)))
+ 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, "accept ok 2");
+ 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, "accept ok 3");
+ 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]");
- /* 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, 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, new_chan, 0, &ThreadId);
+#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;
void statserv_closedown()
{
- /* We don't need todoanything here - or do we */
- if (pListener != NULL)
- iochan_destroy(pListener);
+ 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)
close(hand[0]);
child = 1;
- for (pp = iochan_getchan(); pp; pp = iochan_getnext(pp))
+ for (pp = pListener; pp; pp = iochan_getnext(pp))
{
if (pp != h)
{
- COMSTACK l = iochan_getdata(pp);
+ COMSTACK l = (COMSTACK)iochan_getdata(pp);
cs_close(l);
iochan_destroy(pp);
}
return;
}
}
- if ((res = cs_listen(line, 0, 0)) < 0)
+ if ((res = cs_listen_check(line, 0, 0, check_ip, 0)) < 0)
{
- logf(LOG_FATAL, "cs_listen failed.");
+ logf(LOG_WARN, "cs_listen failed");
return;
}
else if (res == 1)
{
IOCHAN pp;
/* close our half of the listener socket */
- for (pp = iochan_getchan(); pp; pp = iochan_getnext(pp))
+ for (pp = pListener; pp; pp = iochan_getnext(pp))
{
- COMSTACK l = iochan_getdata(pp);
+ COMSTACK l = (COMSTACK)iochan_getdata(pp);
cs_close(l);
iochan_destroy(pp);
}
}
else
iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
-
+
if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
EVENT_INPUT)))
{
iochan_destroy(h);
return;
}
+ new_chan->next = pListener;
+ pListener = new_chan;
if (!(newas = create_association(new_chan, new_line)))
{
logf(LOG_FATAL, "Failed to create new assoc.");
{
logf(LOG_FATAL, "Failed to create association structure");
}
+ chan->next = pListener;
+ pListener = chan;
}
else
{
if (!where || sscanf(where, "%[^:]:%s", mode, addr) != 2)
{
- fprintf(stderr, "%s: Address format: ('tcp'|'osi')':'<address>.\n",
- me);
+ 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");
- }
type = tcpip_type;
- }
else if (!strcmp(mode, "osi"))
{
#ifdef USE_XTIMOSI
- if (!(ap = mosi_strtoaddr(addr)))
- {
- fprintf(stderr, "Address resolution failed for TCP.\n");
- }
type = mosi_type;
#else
- fprintf(stderr, "OSI Transport not allowed by configuration.\n");
+ logf (LOG_WARN, "OSI Transport not allowed by configuration.");
+ return;
#endif
}
else
{
- fprintf(stderr, "You must specify either 'osi:' or 'tcp:'.\n");
+ 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",
{
logf(LOG_FATAL|LOG_ERRNO, "Failed to create listener");
}
+ ap = cs_straddr (l, addr);
+ if (!ap)
+ {
+ fprintf(stderr, "Address resolution failed.\n");
+ cs_close (l);
+ return;
+ }
if (cs_bind(l, ap, CS_SERVER) < 0)
{
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)))
{
logf(LOG_FATAL|LOG_ERRNO, "Failed to create IOCHAN-type");
+ cs_close (l);
+ return;
}
iochan_setdata(lst, l);
memcpy(&control_block, block, sizeof(*block));
}
-int statserv_main(int argc, char **argv)
+int statserv_start(int argc, char **argv)
{
- int ret, listeners = 0, inetd = 0, r;
- char *arg;
- int protocol = control_block.default_proto;
+ 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("a:iszSl:v:u:c:w:t:k:", argv, argc, &arg)) != -2)
- {
- switch (ret)
- {
- case 0:
- add_listener(arg, protocol);
- listeners++;
- break;
- case 'z': protocol = PROTO_Z3950; break;
- case 's': protocol = 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':
- 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);
- }
- }
-
-#if 0
- log_init(control_block.loglevel, NULL, control_block.logfile);
-#endif /* WINDOWS */
-
- if ((pListener == NULL) && *control_block.default_listen)
- add_listener(control_block.default_listen, protocol);
+#endif
+ if (control_block.options_func(argc, argv))
+ return(1);
#ifndef WINDOWS
- if (inetd)
- inetd_connection(protocol);
+ 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);
}
}
#endif /* WINDOWS */
- logf(LOG_LOG, "Entering event loop.");
+ if ((pListener == NULL) && *control_block.default_listen)
+ add_listener(control_block.default_listen,
+ control_block.default_proto);
if (pListener == NULL)
- return(1);
+ ret = 1;
else
- return event_loop(pListener);
+ {
+ 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:
+ 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
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