Fix crash in record conv rule select YAZ-812
[yaz-moved-to-github.git] / src / statserv.c
index ccd0007..815b2e9 100644 (file)
@@ -1,11 +1,6 @@
-/*
- * Copyright (C) 1995-2006, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) Index Data
  * See the file LICENSE for details.
- *
- * NT threaded server code by
- *   Chas Woodfield, Fretwell Downing Informatics.
- *
- * $Id: statserv.c,v 1.39 2006-07-06 10:17:54 adam Exp $
  */
 
 /**
  * \brief Implements GFS logic
  */
 
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <ctype.h>
+
 #ifdef WIN32
 #include <process.h>
 #include <winsock.h>
 #include <direct.h>
-#include "service.h"
 #endif
+
+#include <yaz/sc.h>
+#include <yaz/tpath.h>
+
 #if HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -44,8 +46,6 @@
 
 #if YAZ_POSIX_THREADS
 #include <pthread.h>
-#elif YAZ_GNU_THREADS
-#include <pth.h>
 #endif
 
 #include <fcntl.h>
@@ -55,6 +55,7 @@
 #include <yaz/comstack.h>
 #include <yaz/tcpip.h>
 #include <yaz/options.h>
+#include <yaz/errno.h>
 #ifdef USE_XTIMOSI
 #include <yaz/xmosi.h>
 #endif
@@ -62,6 +63,8 @@
 #include "eventl.h"
 #include "session.h"
 #include <yaz/statserv.h>
+#include <yaz/daemon.h>
+#include <yaz/yaz-iconv.h>
 
 static IOCHAN pListener = NULL;
 
@@ -85,21 +88,18 @@ static statserv_options_block *current_control_block = 0;
 /*
  * default behavior.
  */
-#define STAT_DEFAULT_LOG_LEVEL "none,fatal,warn,log,server,session,request"
-/* the 'none' clears yaz' own default settings, including [log] */
+#define STAT_DEFAULT_LOG_LEVEL "server,session,request"
 
 int check_options(int argc, char **argv);
 statserv_options_block control_block = {
     1,                          /* dynamic mode */
     0,                          /* threaded mode */
     0,                          /* one shot (single session) */
-    0, /* __UNUSED_loglevel */
     "",                         /* no PDUs */
     "",                         /* diagnostic output to stderr */
-    "tcp:@:9999",               /* default listener port */
     PROTO_Z3950,                /* default application protocol */
-    15,                         /* idle timeout (minutes) */
-    1024*1024,                  /* maximum PDU size (approx.) to allow */
+    900,                        /* idle timeout (seconds) */
+    64*1024*1024,               /* maximum PDU size (approx.) to allow */
     "default-config",           /* configuration name to pass to backend */
     "",                         /* set user id */
     0,                          /* bend_start handler */
@@ -117,17 +117,18 @@ statserv_options_block control_block = {
     "",                         /* NT Service Dependencies */
     "Z39.50 Server",            /* NT Service Display Name */
 #endif /* WIN32 */
-    0,                          /* SOAP handlers */
     "",                         /* PID fname */
     0,                          /* background daemon */
     "",                         /* SSL certificate filename */
-    ""                          /* XML config filename */
+    "",                         /* XML config filename */
+    1                           /* keepalive */
 };
 
 static int max_sessions = 0;
 
 static int logbits_set = 0;
-static int log_session = 0;
+static int log_session = 0; /* one-line logs for session */
+static int log_sessiondetail = 0; /* more detailed stuff */
 static int log_server = 0;
 
 /** get_logbits sets global loglevel bits */
@@ -137,6 +138,7 @@ static void get_logbits(int force)
     {
         logbits_set = 1;
         log_session = yaz_log_module_level("session");
+        log_sessiondetail = yaz_log_module_level("sessiondetail");
         log_server = yaz_log_module_level("server");
     }
 }
@@ -149,7 +151,7 @@ static xmlDocPtr xml_config_doc = 0;
 #endif
 
 #if YAZ_HAVE_XML2
-static xmlNodePtr xml_config_get_root()
+static xmlNodePtr xml_config_get_root(void)
 {
     xmlNodePtr ptr = 0;
     if (xml_config_doc)
@@ -161,7 +163,6 @@ static xmlNodePtr xml_config_get_root()
             yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
                     control_block.xml_config);
             return 0;
-        
         }
     }
     return ptr;
@@ -183,7 +184,7 @@ static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
             len += xmlStrlen(p->content);
     }
     /* now allocate for the string */
-    str = nmem_malloc(n, len);
+    str = (unsigned char *) nmem_malloc(n, len);
     *str = '\0'; /* so we can use strcat */
     for (p = ptr; p; p = p->next)
     {
@@ -192,7 +193,7 @@ static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
             cp = p->content;
             if (first)
             {
-                while(*cp && isspace(*cp))
+                while(*cp && yaz_isspace(*cp))
                     cp++;
                 if (*cp)
                     first = 0;  /* reset if we got non-whitespace out */
@@ -202,7 +203,7 @@ static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
     }
     /* remove trailing whitespace */
     cp = strlen((const char *)str) + str;
-    while (cp != str && isspace(cp[-1]))
+    while (cp != str && yaz_isspace(cp[-1]))
         cp--;
     *cp = '\0';
     /* return resulting string */
@@ -210,28 +211,34 @@ static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
 }
 #endif
 
-static struct gfs_server * gfs_server_new()
+#if YAZ_HAVE_XML2
+static struct gfs_server * gfs_server_new(const char *id)
 {
-    struct gfs_server *n = nmem_malloc(gfs_nmem, sizeof(*n));
+    struct gfs_server *n = (struct gfs_server *)
+        nmem_malloc(gfs_nmem, sizeof(*n));
     memcpy(&n->cb, &control_block, sizeof(control_block));
     n->next = 0;
     n->host = 0;
     n->listen_ref = 0;
     n->cql_transform = 0;
+    n->ccl_transform = 0;
     n->server_node_ptr = 0;
     n->directory = 0;
     n->docpath = 0;
     n->stylesheet = 0;
-#if YAZ_HAVE_XML2
+    n->client_query_charset = 0;
+    n->id = nmem_strdup_null(gfs_nmem, id);
     n->retrieval = yaz_retrieval_create();
-#endif
     return n;
 }
+#endif
 
-static struct gfs_listen * gfs_listen_new(const char *id, 
+#if YAZ_HAVE_XML2
+static struct gfs_listen * gfs_listen_new(const char *id,
                                           const char *address)
 {
-    struct gfs_listen *n = nmem_malloc(gfs_nmem, sizeof(*n));
+    struct gfs_listen *n = (struct gfs_listen *)
+        nmem_malloc(gfs_nmem, sizeof(*n));
     if (id)
         n->id = nmem_strdup(gfs_nmem, id);
     else
@@ -240,6 +247,7 @@ static struct gfs_listen * gfs_listen_new(const char *id,
     n->address = nmem_strdup(gfs_nmem, address);
     return n;
 }
+#endif
 
 static void gfs_server_chdir(struct gfs_server *gfs)
 {
@@ -278,9 +286,15 @@ int control_association(association *assoc, const char *host, int force_open)
             int host_match = 0;
             if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
                 host_match = 1;
-            if (!gfs->listen_ref ||
-                gfs->listen_ref == assoc->client_chan->chan_id)
+            if (!gfs->listen_ref)
                 listen_match = 1;
+            else
+            {
+                int i;
+                for (i = 0; gfs->listen_ref[i] != -1; i++)
+                    if (gfs->listen_ref[i] == assoc->client_chan->chan_id)
+                        listen_match = 1;
+            }
             if (listen_match && host_match)
             {
                 if (force_open ||
@@ -299,30 +313,37 @@ int control_association(association *assoc, const char *host, int force_open)
                 assoc->server = gfs;
                 assoc->last_control = &gfs->cb;
                 statserv_setcontrol(&gfs->cb);
+
                 gfs_server_chdir(gfs);
-                yaz_log(YLOG_DEBUG, "server select: %s", gfs->cb.configname);
-                return 1;
+                break;
             }
         }
-        statserv_setcontrol(0);
-        assoc->last_control = 0;
-        yaz_log(YLOG_DEBUG, "server select: no match");
-        return 0;
+        if (!gfs)
+        {
+            statserv_setcontrol(0);
+            assoc->last_control = 0;
+            return 0;
+        }
     }
     else
     {
         statserv_setcontrol(&control_block);
         assoc->last_control = &control_block;
-        yaz_log(YLOG_DEBUG, "server select: config=%s", control_block.configname);
-        return 1;
     }
+    yaz_log(YLOG_DEBUG, "server select: config=%s",
+            assoc->last_control->configname);
+
+    assoc->maximumRecordSize = assoc->last_control->maxrecordsize;
+    assoc->preferredMessageSize = assoc->last_control->maxrecordsize;
+    cs_set_max_recv_bytes(assoc->client_link, assoc->maximumRecordSize);
+    return 1;
 }
 
-static void xml_config_read()
+#if YAZ_HAVE_XML2
+static void xml_config_read(const char *base_path)
 {
     struct gfs_server **gfsp = &gfs_server_list;
     struct gfs_listen **gfslp = &gfs_listen_list;
-#if YAZ_HAVE_XML2
     xmlNodePtr ptr = xml_config_get_root();
 
     if (!ptr)
@@ -358,9 +379,10 @@ static void xml_config_read()
             xmlNodePtr ptr;
             const char *listenref = 0;
             const char *id = 0;
+            struct gfs_server *gfs;
 
             for ( ; attr; attr = attr->next)
-                if (!xmlStrcmp(attr->name, BAD_CAST "listenref") 
+                if (!xmlStrcmp(attr->name, BAD_CAST "listenref")
                     && attr->children && attr->children->type == XML_TEXT_NODE)
                     listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
                 else if (!xmlStrcmp(attr->name, BAD_CAST "id")
@@ -370,21 +392,31 @@ static void xml_config_read()
                 else
                     yaz_log(YLOG_WARN, "Unknown attribute '%s' for server",
                             attr->name);
-            *gfsp = gfs_server_new();
-            (*gfsp)->server_node_ptr = ptr_server;
+            gfs = *gfsp = gfs_server_new(id);
+            gfs->server_node_ptr = ptr_server;
             if (listenref)
             {
-                int id_no;
-                struct gfs_listen *gl = gfs_listen_list;
-                for (id_no = 1; gl; gl = gl->next, id_no++)
-                    if (gl->id && !strcmp(gl->id, listenref))
-                    {
-                        (*gfsp)->listen_ref = id_no;
-                        break;
-                    }
-                if (!gl)
-                    yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
-                            "config element", listenref);
+                char **refs;
+                int num, i;
+                nmem_strsplit(gfs_nmem, ",", listenref, &refs, &num);
+                gfs->listen_ref = (int*) nmem_malloc(gfs_nmem,
+                                                     sizeof(int) * (num + 1));
+                for (i = 0; i < num; i++)
+                {
+                    int id_no;
+                    struct gfs_listen *gl = gfs_listen_list;
+                    gfs->listen_ref[i] = 0;
+                    for (id_no = 1; gl; gl = gl->next, id_no++)
+                        if (gl->id && !strcmp(gl->id, refs[i]))
+                        {
+                            gfs->listen_ref[i] = id_no;
+                            break;
+                        }
+                    if (!gl)
+                        yaz_log(YLOG_WARN, "Non-existent listenref '%s' "
+                                "in server config element", refs[i]);
+                }
+                gfs->listen_ref[i] = -1;
             }
             for (ptr = ptr_server->children; ptr; ptr = ptr->next)
             {
@@ -392,36 +424,78 @@ static void xml_config_read()
                     continue;
                 if (!strcmp((const char *) ptr->name, "host"))
                 {
-                    (*gfsp)->host = nmem_dup_xml_content(gfs_nmem,
-                                                         ptr->children);
+                    gfs->host = nmem_dup_xml_content(gfs_nmem,
+                                                     ptr->children);
                 }
                 else if (!strcmp((const char *) ptr->name, "config"))
                 {
-                    strcpy((*gfsp)->cb.configname,
+                    char fpath[1024];
+                    strcpy(gfs->cb.configname,
                            nmem_dup_xml_content(gfs_nmem, ptr->children));
+
+                    if (yaz_filepath_resolve(gfs->cb.configname,
+                                             base_path, 0, fpath))
+                        strcpy(gfs->cb.configname, fpath);
                 }
                 else if (!strcmp((const char *) ptr->name, "cql2rpn"))
                 {
-                    (*gfsp)->cql_transform = cql_transform_open_fname(
-                        nmem_dup_xml_content(gfs_nmem, ptr->children)
-                        );
+                    char fpath[1024];
+                    char *fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
+                    if (yaz_filepath_resolve(fname, base_path, 0, fpath))
+                        fname = fpath;
+
+                    gfs->cql_transform = cql_transform_open_fname(fname);
+                    if (!gfs->cql_transform)
+                    {
+                        yaz_log(YLOG_FATAL|YLOG_ERRNO,
+                                "open CQL transform file '%s'", fname);
+                        exit(1);
+                    }
+                }
+                else if (!strcmp((const char *) ptr->name, "ccl2rpn"))
+                {
+                    char *fname, fpath[1024];
+                    FILE *f;
+
+                    fname = nmem_dup_xml_content(gfs_nmem, ptr->children);
+                    if (yaz_filepath_resolve(fname, base_path, 0, fpath))
+                        fname = fpath;
+
+                    if ((f = fopen(fname, "r")) == 0) {
+                        yaz_log(YLOG_FATAL, "can't open CCL file '%s'", fname);
+                        exit(1);
+                    }
+                    gfs->ccl_transform = ccl_qual_mk();
+                    ccl_qual_file (gfs->ccl_transform, f);
+                    fclose(f);
                 }
                 else if (!strcmp((const char *) ptr->name, "directory"))
                 {
-                    (*gfsp)->directory = 
+                    gfs->directory =
                         nmem_dup_xml_content(gfs_nmem, ptr->children);
                 }
                 else if (!strcmp((const char *) ptr->name, "docpath"))
                 {
-                    (*gfsp)->docpath = 
+                    gfs->docpath =
                         nmem_dup_xml_content(gfs_nmem, ptr->children);
                 }
+                else if (!strcmp((const char *) ptr->name, "maximumrecordsize"))
+                {
+                    gfs->cb.maxrecordsize = atoi(
+                        nmem_dup_xml_content(gfs_nmem, ptr->children));
+                }
                 else if (!strcmp((const char *) ptr->name, "stylesheet"))
                 {
                     char *s = nmem_dup_xml_content(gfs_nmem, ptr->children);
-                    (*gfsp)->stylesheet = 
+                    gfs->stylesheet = (char *)
                         nmem_malloc(gfs_nmem, strlen(s) + 2);
-                    sprintf((*gfsp)->stylesheet, "/%s", s);
+                    sprintf(gfs->stylesheet, "/%s", s);
+                }
+                else if (!strcmp((const char *) ptr->name,
+                                 "client_query_charset"))
+                {
+                    gfs->client_query_charset =
+                        nmem_dup_xml_content(gfs_nmem, ptr->children);
                 }
                 else if (!strcmp((const char *) ptr->name, "explain"))
                 {
@@ -429,10 +503,12 @@ static void xml_config_read()
                 }
                 else if (!strcmp((const char *) ptr->name, "retrievalinfo"))
                 {
-                    if (yaz_retrieval_configure((*gfsp)->retrieval, ptr))
-                    {       
+                    if (base_path)
+                        yaz_retrieval_set_path(gfs->retrieval, base_path);
+                    if (yaz_retrieval_configure(gfs->retrieval, ptr))
+                    {
                         yaz_log(YLOG_FATAL, "%s in config %s",
-                                yaz_retrieval_get_error((*gfsp)->retrieval),
+                                yaz_retrieval_get_error(gfs->retrieval),
                                 control_block.xml_config);
                         exit(1);
                     }
@@ -447,12 +523,14 @@ static void xml_config_read()
             gfsp = &(*gfsp)->next;
         }
     }
-#endif
     *gfsp = 0;
 }
+#endif
 
-static void xml_config_open()
+static int xml_config_open(void)
 {
+    const char *last_p;
+    const char *fname = control_block.xml_config;
     if (!getcwd(gfs_root_dir, FILENAME_MAX))
     {
         yaz_log(YLOG_WARN|YLOG_ERRNO, "getcwd failed");
@@ -465,19 +543,19 @@ static void xml_config_open()
     init_control_tls = 1;
     pthread_key_create(&current_control_tls, 0);
 #endif
-    
+
     gfs_nmem = nmem_create();
 #if YAZ_HAVE_XML2
-    if (control_block.xml_config[0] == '\0')
-        return;
+    if (fname[0] == '\0')
+        return 0;
 
     if (!xml_config_doc)
     {
-        xml_config_doc = xmlParseFile(control_block.xml_config);
+        xml_config_doc = xmlParseFile(fname);
         if (!xml_config_doc)
         {
-            yaz_log(YLOG_FATAL, "Could not parse %s", control_block.xml_config);
-            exit(1);
+            yaz_log(YLOG_FATAL, "Could not parse %s", fname);
+            return -1;
         }
         else
         {
@@ -485,16 +563,32 @@ static void xml_config_open()
             if (noSubstitutions == -1)
             {
                 yaz_log(YLOG_WARN, "XInclude processing failed for config %s",
-                        control_block.xml_config);
-                exit(1);
+                        fname);
+                return -1;
             }
         }
     }
-    xml_config_read();
+    last_p = strrchr(fname,
+#ifdef WIN32
+                     '\\'
+#else
+                     '/'
 #endif
+        );
+    if (last_p)
+    {
+        WRBUF base_path = wrbuf_alloc();
+        wrbuf_write(base_path, fname, last_p - fname);
+        xml_config_read(wrbuf_cstr(base_path));
+        wrbuf_destroy(base_path);
+    }
+    else
+        xml_config_read(0);
+#endif
+    return 0;
 }
 
-static void xml_config_close()
+static void xml_config_close(void)
 {
 #if YAZ_HAVE_XML2
     if (xml_config_doc)
@@ -514,19 +608,21 @@ static void xml_config_close()
 #endif
 }
 
-static void xml_config_add_listeners()
+static int xml_config_add_listeners(void)
 {
     struct gfs_listen *gfs = gfs_listen_list;
     int id_no;
+    int ret = 0;
 
     for (id_no = 1; gfs; gfs = gfs->next, id_no++)
     {
-        if (gfs->address)
-            add_listener(gfs->address, id_no);
+        if (!ret && gfs->address)
+            ret = add_listener(gfs->address, id_no);
     }
+    return ret;
 }
 
-static void xml_config_bend_start()
+static void xml_config_bend_start(void)
 {
     if (control_block.xml_config[0])
     {
@@ -552,7 +648,7 @@ static void xml_config_bend_start()
     }
 }
 
-static void xml_config_bend_stop()
+static void xml_config_bend_stop(void)
 {
     if (control_block.xml_config[0])
     {
@@ -575,6 +671,8 @@ static void xml_config_bend_stop()
     }
 }
 
+static void remove_listeners(void);
+
 /*
  * handle incoming connect requests.
  * The dynamic mode is a bit tricky mostly because we want to avoid
@@ -601,7 +699,7 @@ static void ThreadList_Initialize()
     /* Initialize the critical Sections */
     InitializeCriticalSection(&Thread_CritSect);
 
-     /* Set the first thraed */
+    /* Set the first thraed */
     pFirstThread = NULL;
 
     /* we have been initialized */
@@ -669,7 +767,7 @@ void statserv_remove(IOCHAN pIOChannel)
 }
 
 /* WIN32 statserv_closedown */
-void statserv_closedown()
+static void statserv_closedown()
 {
     /* Shouldn't do anything if we are not initialized */
     if (bInitialized)
@@ -706,7 +804,7 @@ void statserv_closedown()
 
                 /* Allocate the thread handle array */
                 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
-                pCurrentHandle = pThreadHandles; 
+                pCurrentHandle = pThreadHandles;
 
                 for (pCurrentThread = pFirstThread;
                      pCurrentThread != NULL;
@@ -739,13 +837,13 @@ void statserv_closedown()
     xml_config_close();
 }
 
-void __cdecl event_loop_thread (IOCHAN iochan)
+void __cdecl event_loop_thread(IOCHAN iochan)
 {
-    event_loop (&iochan);
+    iochan_event_loop(&iochan, 0);
 }
 
 /* WIN32 listener */
-static void listener(IOCHAN h, int event)   
+static void listener(IOCHAN h, int event)
 {
     COMSTACK line = (COMSTACK) iochan_getdata(h);
     IOCHAN parent_chan = line->user;
@@ -755,27 +853,21 @@ static void listener(IOCHAN h, int event)
 
     if (event == EVENT_INPUT)
     {
+        COMSTACK new_line;
+        IOCHAN new_chan;
+
         if ((res = cs_listen(line, 0, 0)) < 0)
         {
-            yaz_log(YLOG_FATAL, "cs_listen failed");
+            yaz_log(YLOG_FATAL|YLOG_ERRNO, "cs_listen failed");
             return;
         }
         else if (res == 1)
-            return;
+            return; /* incomplete */
         yaz_log(YLOG_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 = cs_accept(line);
-        IOCHAN new_chan;
-        char *a = NULL;
-
-        if (!new_line)
+        new_line = cs_accept(line);
+       if (!new_line)
         {
             yaz_log(YLOG_FATAL, "Accept failed.");
-            iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT);
             return;
         }
         yaz_log(YLOG_DEBUG, "Accept ok");
@@ -809,7 +901,7 @@ static void listener(IOCHAN h, int event)
         newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
         if (newHandle == (HANDLE) -1)
         {
-            
+
             yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
             iochan_destroy(h);
             return;
@@ -828,27 +920,16 @@ static void listener(IOCHAN h, int event)
     }
 }
 
-int statserv_must_terminate(void)
-{
-    return 0;
-}
-
 #else /* ! WIN32 */
 
-static int term_flag = 0;
 /* To save having an #ifdef in event_loop we need to
-   define this empty function 
+   define this empty function
 */
-int statserv_must_terminate(void)
-{
-    return term_flag;
-}
-
 void statserv_remove(IOCHAN pIOChannel)
 {
 }
 
-void statserv_closedown()
+static void statserv_closedown(void)
 {
     IOCHAN p;
 
@@ -860,12 +941,7 @@ void statserv_closedown()
     xml_config_close();
 }
 
-void sigterm(int sig)
-{
-    term_flag = 1;
-}
-
-static void *new_session (void *vp);
+static void *new_session(void *vp);
 static int no_sessions = 0;
 
 /* UNIX listener */
@@ -896,7 +972,10 @@ static void listener(IOCHAN h, int event)
             return;
         }
 
-        yaz_log(log_session, "Connect from %s", cs_addrstr(new_line));
+        if (control_block.one_shot)
+            remove_listeners();
+
+        yaz_log(log_sessiondetail, "Connect from %s", cs_addrstr(new_line));
 
         no_sessions++;
         if (control_block.dynamic)
@@ -935,20 +1014,8 @@ static void listener(IOCHAN h, int event)
         {
 #if YAZ_POSIX_THREADS
             pthread_t child_thread;
-            pthread_create (&child_thread, 0, new_session, new_line);
-            pthread_detach (child_thread);
-#elif YAZ_GNU_THREADS
-            pth_attr_t attr;
-            pth_t child_thread;
-
-            attr = pth_attr_new ();
-            pth_attr_set (attr, PTH_ATTR_JOINABLE, FALSE);
-            pth_attr_set (attr, PTH_ATTR_STACK_SIZE, 32*1024);
-            pth_attr_set (attr, PTH_ATTR_NAME, "session");
-            yaz_log (YLOG_DEBUG, "pth_spawn begin");
-            child_thread = pth_spawn (attr, new_session, new_line);
-            yaz_log (YLOG_DEBUG, "pth_spawn finish");
-            pth_attr_destroy (attr);
+            pthread_create(&child_thread, 0, new_session, new_line);
+            pthread_detach(child_thread);
 #else
             new_session(new_line);
 #endif
@@ -968,15 +1035,15 @@ static void listener(IOCHAN h, int event)
     }
 }
 
-static void *new_session (void *vp)
+static void *new_session(void *vp)
 {
-    char *a;
+    const char *a;
     association *newas;
     IOCHAN new_chan;
     COMSTACK new_line = (COMSTACK) vp;
-    IOCHAN parent_chan = new_line->user;
+    IOCHAN parent_chan = (IOCHAN) new_line->user;
 
-    unsigned cs_get_mask, cs_accept_mask, mask =  
+    unsigned cs_get_mask, cs_accept_mask, mask =
         ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
         ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
 
@@ -1013,13 +1080,14 @@ static void *new_session (void *vp)
 #else
     a = 0;
 #endif
-    yaz_log(log_session, "Starting session %d from %s (pid=%ld)",
+    yaz_log_xml_errors(0, YLOG_WARN);
+    yaz_log(log_session, "Session - OK %d %s PID=%ld",
             no_sessions, a ? a : "[Unknown]", (long) getpid());
     if (max_sessions && no_sessions >= max_sessions)
         control_block.one_shot = 1;
     if (control_block.threads)
     {
-        event_loop(&new_chan);
+        iochan_event_loop(&new_chan, 0);
     }
     else
     {
@@ -1037,7 +1105,7 @@ static void inetd_connection(int what)
     COMSTACK line;
     IOCHAN chan;
     association *assoc;
-    char *addr;
+    const char *addr;
 
     if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
     {
@@ -1050,7 +1118,7 @@ static void inetd_connection(int what)
                 iochan_setdata(chan, assoc);
                 iochan_settimeout(chan, 60);
                 addr = cs_addrstr(line);
-                yaz_log(log_session, "Inetd association from %s",
+                yaz_log(log_sessiondetail, "Inetd association from %s",
                         addr ? addr : "[UNKNOWN]");
                 assoc->cs_get_mask = EVENT_INPUT;
             }
@@ -1089,8 +1157,8 @@ static int add_listener(char *where, int listen_id)
     else
         mode = "static";
 
-    yaz_log(log_server, "Adding %s listener on %s id=%d", mode, where,
-            listen_id);
+    yaz_log(log_server, "Adding %s listener on %s id=%d PID=%ld", mode, where,
+            listen_id, (long) getpid());
 
     l = cs_create_host(where, 2, &ap);
     if (!l)
@@ -1103,15 +1171,19 @@ static int add_listener(char *where, int listen_id)
 
     if (cs_bind(l, ap, CS_SERVER) < 0)
     {
-        yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
-        cs_close (l);
+        if (cs_errno(l) == CSYSERR)
+            yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
+        else
+            yaz_log(YLOG_FATAL, "Failed to bind to %s: %s", where,
+                    cs_strerror(l));
+        cs_close(l);
         return -1;
     }
     if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
-         EVENT_EXCEPT, listen_id)))
+                              EVENT_EXCEPT, listen_id)))
     {
         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
-        cs_close (l);
+        cs_close(l);
         return -1;
     }
     iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
@@ -1123,6 +1195,13 @@ static int add_listener(char *where, int listen_id)
     return 0; /* OK */
 }
 
+static void remove_listeners(void)
+{
+    IOCHAN l = pListener;
+    for (; l; l = l->next)
+        iochan_destroy(l);
+}
+
 #ifndef WIN32
 /* UNIX only (for windows we don't need to catch the signals) */
 static void catchchld(int num)
@@ -1142,7 +1221,8 @@ statserv_options_block *statserv_getcontrol(void)
         return &control_block;
 #elif YAZ_POSIX_THREADS
     if (init_control_tls)
-        return pthread_getspecific(current_control_tls);
+        return (statserv_options_block *)
+            pthread_getspecific(current_control_tls);
     else
         return &control_block;
 #else
@@ -1154,7 +1234,11 @@ statserv_options_block *statserv_getcontrol(void)
 
 void statserv_setcontrol(statserv_options_block *block)
 {
-    chdir(gfs_root_dir);
+    if (gfs_root_dir[0])
+    {
+        if (chdir(gfs_root_dir))
+            yaz_log(YLOG_WARN|YLOG_ERRNO, "chdir %s", gfs_root_dir);
+    }
 #ifdef WIN32
     if (init_control_tls)
         TlsSetValue(current_control_tls, block);
@@ -1170,7 +1254,33 @@ static void statserv_reset(void)
 {
 }
 
-int statserv_start(int argc, char **argv)
+static int sig_received = 0;
+
+#ifndef WIN32
+static void normal_stop_handler(int num)
+{
+    sig_received = num;
+}
+#endif
+
+static void daemon_handler(void *data)
+{
+    IOCHAN *pListener = data;
+    iochan_event_loop(pListener, &sig_received);
+}
+
+static void show_version(void)
+{
+    char vstr[20], sha1_str[41];
+
+    yaz_version(vstr, sha1_str);
+    printf("YAZ version: %s %s\n", YAZ_VERSION, YAZ_VERSION_SHA1);
+    if (strcmp(sha1_str, YAZ_VERSION_SHA1))
+        printf("YAZ DLL/SO: %s %s\n", vstr, sha1_str);
+    exit(0);
+}
+
+static int statserv_sc_main(yaz_sc_t s, int argc, char **argv)
 {
     char sep;
 #ifdef WIN32
@@ -1185,7 +1295,7 @@ int statserv_start(int argc, char **argv)
 #else
     sep = '/';
 #endif
-    if ((me = strrchr (argv[0], sep)))
+    if ((me = strrchr(argv[0], sep)))
         me++; /* get the basename */
     else
         me = argv[0];
@@ -1194,133 +1304,56 @@ int statserv_start(int argc, char **argv)
     if (control_block.options_func(argc, argv))
         return 1;
 
-    xml_config_open();
-    
+    if (xml_config_open())
+        return 1;
+
     xml_config_bend_start();
 
+    if (control_block.inetd)
+    {
 #ifdef WIN32
-    xml_config_add_listeners();
-
-    yaz_log (log_server, "Starting server %s", me);
-    if (!pListener && *control_block.default_listen)
-        add_listener(control_block.default_listen, 0);
+        ; /* no inetd on Windows */
 #else
-/* UNIX */
-    if (control_block.inetd)
         inetd_connection(control_block.default_proto);
+#endif
+    }
     else
     {
-        static int hand[2];
-        if (control_block.background)
-        {
-            /* create pipe so that parent waits until child has created
-               PID (or failed) */
-            if (pipe(hand) < 0)
-            {
-                yaz_log(YLOG_FATAL|YLOG_ERRNO, "pipe");
-                return 1;
-            }
-            switch (fork())
-            {
-            case 0: 
-                break;
-            case -1:
-                return 1;
-            default:
-                close(hand[1]);
-                while(1)
-                {
-                    char dummy[1];
-                    int res = read(hand[0], dummy, 1);
-                    if (res < 0 && yaz_errno() != EINTR)
-                    {
-                        yaz_log(YLOG_FATAL|YLOG_ERRNO, "read fork handshake");
-                        break;
-                    }
-                    else if (res >= 0)
-                        break;
-                }
-                close(hand[0]);
-                _exit(0);
-            }
-            /* child */
-            close(hand[0]);
-            if (setsid() < 0)
-                return 1;
-            
-            close(0);
-            close(1);
-            close(2);
-            open("/dev/null", O_RDWR);
-            dup(0); dup(0);
-        }
-        xml_config_add_listeners();
+        if (xml_config_add_listeners())
+            return 1;
 
-        if (!pListener && *control_block.default_listen)
-            add_listener(control_block.default_listen, 0);
-        
         if (!pListener)
-            return 1;
+            add_listener("tcp:@:9999", 0);
 
-        if (*control_block.pid_fname)
-        {
-            FILE *f = fopen(control_block.pid_fname, "w");
-            if (!f)
-            {
-                yaz_log(YLOG_FATAL|YLOG_ERRNO, "Couldn't create %s", 
-                        control_block.pid_fname);
-                exit(0);
-            }
-            fprintf(f, "%ld", (long) getpid());
-            fclose(f);
-        }
-        
-        if (control_block.background)
-            close(hand[1]);
-
-
-        yaz_log (log_server, "Starting server %s pid=%ld", programname, 
-                 (long) getpid());
-#if 0
-        sigset_t sigs_to_block;
-        
-        sigemptyset(&sigs_to_block);
-        sigaddset (&sigs_to_block, SIGTERM);
-        pthread_sigmask (SIG_BLOCK, &sigs_to_block, 0);
-        /* missing... */
-#endif
+#ifndef WIN32
         if (control_block.dynamic)
             signal(SIGCHLD, catchchld);
-    }
-    signal (SIGPIPE, SIG_IGN);
-    signal (SIGTERM, sigterm);
-    if (*control_block.setuid)
-    {
-        struct passwd *pw;
-        
-        if (!(pw = getpwnam(control_block.setuid)))
-        {
-            yaz_log(YLOG_FATAL, "%s: Unknown user", control_block.setuid);
-            return(1);
-        }
-        if (setuid(pw->pw_uid) < 0)
-        {
-            yaz_log(YLOG_FATAL|YLOG_ERRNO, "setuid");
-            exit(1);
-        }
-    }
-/* UNIX */
 #endif
+    }
     if (pListener == NULL)
         return 1;
-    yaz_log(YLOG_DEBUG, "Entering event loop.");
-    return event_loop(&pListener);
+    if (s)
+        yaz_sc_running(s);
+
+#ifndef WIN32
+    signal(SIGTERM, normal_stop_handler);
+#endif
+    yaz_daemon(programname,
+               (control_block.background ? YAZ_DAEMON_FORK : 0),
+               daemon_handler, &pListener,
+               *control_block.pid_fname ? control_block.pid_fname : 0,
+               *control_block.setuid ? control_block.setuid : 0);
+#ifndef WIN32
+    if (sig_received)
+        yaz_log(YLOG_LOG, "Received SIGTERM PID=%ld", (long) getpid());
+#endif
+    return 0;
 }
 
 static void option_copy(char *dst, const char *src)
 {
-    strncpy(dst, src ? src : "", 127);
-    dst[127] = '\0';
+    strncpy(dst, src ? src : "", BEND_NAME_MAX-1);
+    dst[BEND_NAME_MAX-1] = '\0';
 }
 
 int check_options(int argc, char **argv)
@@ -1328,19 +1361,11 @@ int check_options(int argc, char **argv)
     int ret = 0, r;
     char *arg;
 
-    if (getenv("YAZ_LOG") == 0) {
-        /*
-         * Set default log level.  We want to avoid doing this if the
-         * user has already explicitly specified a preferred default
-         * log-level, hence the inelegant peek at the YAZ_LOG
-         * environment variable that will subsequently be interpreted
-         * by the YAZ logging module itself.
-         */
-        yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
-    }
+    yaz_log_init_level(yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL));
+
+    get_logbits(1);
 
-    get_logbits(1); 
-    while ((ret = options("1a:iszSTl:v:u:c:w:t:k:d:A:p:DC:f:m:",
+    while ((ret = options("1a:iszSTl:v:u:c:w:t:k:Kd:A:p:DC:f:m:r:V",
                           argv, argc, &arg)) != -2)
     {
         switch (ret)
@@ -1349,7 +1374,7 @@ int check_options(int argc, char **argv)
             if (add_listener(arg, 0))
                 return 1;  /* failed to create listener */
             break;
-        case '1':        
+        case '1':
             control_block.one_shot = 1;
             control_block.dynamic = 0;
             break;
@@ -1357,8 +1382,8 @@ int check_options(int argc, char **argv)
             control_block.default_proto = PROTO_Z3950;
             break;
         case 's':
-            fprintf (stderr, "%s: SR protocol no longer supported\n", me);
-            exit (1);
+            fprintf(stderr, "%s: SR protocol no longer supported\n", me);
+            exit(1);
             break;
         case 'S':
             control_block.dynamic = 0;
@@ -1367,9 +1392,6 @@ int check_options(int argc, char **argv)
 #if YAZ_POSIX_THREADS
             control_block.dynamic = 0;
             control_block.threads = 1;
-#elif YAZ_GNU_THREADS
-            control_block.dynamic = 0;
-            control_block.threads = 1;
 #else
             fprintf(stderr, "%s: Threaded mode not available.\n", me);
             return 1;
@@ -1386,12 +1408,10 @@ int check_options(int argc, char **argv)
             }
             yaz_log_time_format(arg);
             break;
-        case 'v': {
-            int default_level = yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL);
-            yaz_log_init_level(yaz_log_mask_str_x(arg, default_level));
-            get_logbits(1); 
+        case 'v':
+            yaz_log_init_level(yaz_log_mask_str(arg));
+            get_logbits(1);
             break;
-        }
         case 'a':
             option_copy(control_block.apdufile, arg);
             break;
@@ -1413,7 +1433,7 @@ int check_options(int argc, char **argv)
                 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
                 return(1);
             }
-            control_block.idle_timeout = r;
+            control_block.idle_timeout = strchr(arg, 's') ? r : 60 * r;
             break;
         case  'k':
             if (!arg || !(r = atoi(arg)))
@@ -1423,13 +1443,16 @@ int check_options(int argc, char **argv)
             }
             control_block.maxrecordsize = r * 1024;
             break;
+        case 'K':
+            control_block.keepalive = 0;
+            break;
         case 'i':
             control_block.inetd = 1;
             break;
         case 'w':
             if (chdir(arg))
             {
-                perror(arg);            
+                perror(arg);
                 return 1;
             }
             break;
@@ -1450,93 +1473,62 @@ int check_options(int argc, char **argv)
         case 'D':
             control_block.background = 1;
             break;
+        case 'r':
+            if (!arg || !(r = atoi(arg)))
+            {
+                fprintf(stderr, "%s: Specify positive size for -r.\n", me);
+                return(1);
+            }
+            yaz_log_init_max_size(r * 1024);
+            break;
+        case 'V':
+            show_version();
+            break;
         default:
             fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
                     " -l <logfile> -u <user> -c <config> -t <minutes>"
                     " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
-                        " -ziDST1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
+                    " -zKiDSTV1 -m <time-format> -w <directory> <listener-addr>... ]\n", me);
             return 1;
         }
     }
     return 0;
 }
 
-#ifdef WIN32
-typedef struct _Args
+void statserv_sc_stop(yaz_sc_t s)
 {
-    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,
-                  bend_initresult *(*bend_init)(bend_initrequest *r),
-                  void (*bend_close)(void *handle))
-{
-    struct statserv_options_block *cb = &control_block;
-    cb->bend_init = bend_init;
-    cb->bend_close = bend_close;
-
-    /* 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_display_name, /* displayed name */
-                 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();
     statserv_reset();
 }
-/* WIN32 */
-#else
-/* UNIX */
+
 int statserv_main(int argc, char **argv,
                   bend_initresult *(*bend_init)(bend_initrequest *r),
                   void (*bend_close)(void *handle))
 {
     int ret;
+    struct statserv_options_block *cb = &control_block;
+
+    /* control block does not have service_name member on Unix */
+    yaz_sc_t s = yaz_sc_create(
+#ifdef WIN32
+        cb->service_name, cb->service_display_name
+#else
+        0, 0
+#endif
+        );
 
-    control_block.bend_init = bend_init;
-    control_block.bend_close = bend_close;
+    cb->bend_init = bend_init;
+    cb->bend_close = bend_close;
 
-    ret = statserv_start (argc, argv);
-    statserv_closedown ();
-    statserv_reset();
+    ret = yaz_sc_program(s, argc, argv, statserv_sc_main, statserv_sc_stop);
+    yaz_sc_destroy(&s);
     return ret;
 }
-#endif
+
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab