src/pazpar2_config.c

   1 /* This file is part of Pazpar2.
   2    Copyright (C) Index Data
   3
   4 Pazpar2 is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 */
  19
  20 #if HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <string.h>
  25 #include <assert.h>
  26
  27 #include <libxml/parser.h>
  28 #include <libxml/tree.h>
  29 #include <libxml/xinclude.h>
  30
  31 #include <yaz/yaz-util.h>
  32 #include <yaz/nmem.h>
  33 #include <yaz/snprintf.h>
  34 #include <yaz/tpath.h>
  35 #include <yaz/xml_include.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #if HAVE_UNISTD_H
  40 #include <unistd.h>
  41 #endif
  42 #include "ppmutex.h"
  43 #include "incref.h"
  44 #include "pazpar2_config.h"
  45 #include "service_xslt.h"
  46 #include "settings.h"
  47 #include "eventl.h"
  48 #include "http.h"
  49
  50 struct conf_config
  51 {
  52     NMEM nmem; /* for conf_config and servers memory */
  53     struct conf_server *servers;
  54
  55     int no_threads;
  56     WRBUF confdir;
  57     iochan_man_t iochan_man;
  58 };
  59
  60 struct service_xslt
  61 {
  62     char *id;
  63     xsltStylesheetPtr xsp;
  64     struct service_xslt *next;
  65 };
  66
  67 static char *xml_context(const xmlNode *ptr, char *res, size_t len)
  68 {
  69     xmlAttr *attr = ptr->properties;
  70     size_t off = len - 1;
  71
  72     res[off] = '\0';
  73     for (; attr; attr = attr->next)
  74     {
  75         size_t l = strlen((const char *) attr->name);
  76         if (off <= l + 1)
  77             break;
  78         off = off - l;
  79         memcpy(res + off, attr->name, l);
  80         res[--off] = '@';
  81     }
  82     while (ptr && ptr->type == XML_ELEMENT_NODE)
  83     {
  84         size_t l = strlen((const char *) ptr->name);
  85         if (off <= l + 1)
  86             break;
  87
  88         off = off - l;
  89         memcpy(res + off, ptr->name, l);
  90         res[--off] = '/';
  91
  92         ptr = ptr->parent;
  93     }
  94     return res + off;
  95 }
  96
  97 struct conf_service *service_init(struct conf_server *server,
  98                                          int num_metadata, int num_sortkeys,
  99                                          const char *service_id)
 100 {
 101     struct conf_service * service = 0;
 102     NMEM nmem = nmem_create();
 103
 104
 105     service = nmem_malloc(nmem, sizeof(struct conf_service));
 106     service->mutex = 0;
 107     service->ref_count = 1;
 108     service->nmem = nmem;
 109     service->next = 0;
 110     service->databases = 0;
 111     service->xslt_list = 0;
 112     service->ccl_bibset = 0;
 113     service->server = server;
 114     service->session_timeout = 60; /* default session timeout */
 115     service->z3950_session_timeout = 180;
 116     service->z3950_operation_timeout = 30;
 117     service->rank_cluster = 1;
 118     service->rank_debug = 0;
 119     service->rank_follow = 0.0;
 120     service->rank_lead = 0.0;
 121     service->rank_length = 2;
 122
 123     service->charsets = 0;
 124
 125     service->id = service_id ? nmem_strdup(nmem, service_id) : 0;
 126
 127     // Setup a dictionary from server.
 128     service->dictionary = 0;
 129
 130     service->settings = nmem_malloc(nmem, sizeof(*service->settings));
 131     service->settings->num_settings = PZ_MAX_EOF;
 132     service->settings->settings = nmem_malloc(nmem, sizeof(struct setting*) * service->settings->num_settings);
 133     memset(service->settings->settings, 0, sizeof(struct setting*) * service->settings->num_settings);
 134     //  inherit_server_settings_values(service);
 135
 136     service->next = 0;
 137
 138     service->num_metadata = num_metadata;
 139
 140     service->metadata = 0;
 141     if (service->num_metadata)
 142         service->metadata
 143             = nmem_malloc(nmem,
 144                           sizeof(struct conf_metadata) * service->num_metadata);
 145     service->num_sortkeys = num_sortkeys;
 146
 147     service->default_sort = nmem_strdup(nmem, "relevance");
 148     service->sortkeys = 0;
 149     if (service->num_sortkeys)
 150         service->sortkeys
 151             = nmem_malloc(nmem,
 152                           sizeof(struct conf_sortkey) * service->num_sortkeys);
 153     service->xml_node = 0;
 154     return service;
 155 }
 156
 157 static struct conf_metadata* conf_service_add_metadata(
 158     struct conf_service *service,
 159     int field_id,
 160     const char *name,
 161     enum conf_metadata_type type,
 162     enum conf_metadata_merge merge,
 163     enum conf_setting_type setting,
 164     int brief,
 165     int termlist,
 166     const char *rank,
 167     int sortkey_offset,
 168     enum conf_metadata_mergekey mt,
 169     const char *facetrule,
 170     const char *limitmap,
 171     const char *limitcluster
 172     )
 173 {
 174     struct conf_metadata * md = 0;
 175     NMEM nmem = service->nmem;
 176
 177     if (!service->metadata || !service->num_metadata
 178         || field_id < 0  || !(field_id < service->num_metadata))
 179         return 0;
 180
 181     md = service->metadata + field_id;
 182     assert(nmem && md && name);
 183
 184     md->name = nmem_strdup(nmem, name);
 185
 186     md->type = type;
 187
 188     // enforcing that type_year is always range_merge
 189     if (md->type == Metadata_type_year)
 190         md->merge = Metadata_merge_range;
 191     else
 192         md->merge = merge;
 193
 194     md->setting = setting;
 195     md->brief = brief;
 196     md->termlist = termlist;
 197     md->rank = nmem_strdup_null(nmem, rank);
 198     md->sortkey_offset = sortkey_offset;
 199     md->mergekey = mt;
 200     md->facetrule = nmem_strdup_null(nmem, facetrule);
 201     md->limitmap = nmem_strdup_null(nmem, limitmap);
 202     md->limitcluster = nmem_strdup_null(nmem, limitcluster);
 203     return md;
 204 }
 205
 206 static struct conf_sortkey *conf_service_add_sortkey(
 207     struct conf_service *service,
 208     int field_id,
 209     const char *name,
 210     enum conf_metadata_type type)
 211 {
 212     struct conf_sortkey *sk = 0;
 213     NMEM nmem = service->nmem;
 214
 215     if (!service->sortkeys || !service->num_sortkeys
 216         || field_id < 0 || !(field_id < service->num_sortkeys))
 217         return 0;
 218
 219     sk = service->sortkeys + field_id;
 220
 221     assert(nmem && sk && name);
 222
 223     sk->name = nmem_strdup(nmem, name);
 224     sk->type = type;
 225     return sk;
 226 }
 227
 228 int conf_service_metadata_field_id(struct conf_service *service,
 229                                    const char * name)
 230 {
 231     int i = 0;
 232
 233     if (!service || !service->metadata || !service->num_metadata)
 234         return -1;
 235
 236     for (i = 0; i < service->num_metadata; i++)
 237         if (!strcmp(name, (service->metadata[i]).name))
 238             return i;
 239     return -1;
 240 }
 241
 242 int conf_service_sortkey_field_id(struct conf_service *service,
 243                                   const char * name)
 244 {
 245     int i = 0;
 246
 247     if (!service || !service->sortkeys || !service->num_sortkeys)
 248         return -1;
 249
 250     for (i = 0; i < service->num_sortkeys; i++)
 251         if (!strcmp(name, (service->sortkeys[i]).name))
 252             return i;
 253     return -1;
 254 }
 255
 256 static void conf_dir_path(struct conf_config *config, WRBUF w, const char *src)
 257 {
 258     if (config->confdir && wrbuf_len(config->confdir) > 0 &&
 259         !yaz_is_abspath(src))
 260     {
 261         wrbuf_printf(w, "%s/%s", wrbuf_cstr(config->confdir), src);
 262     }
 263     else
 264         wrbuf_puts(w, src);
 265 }
 266
 267 void service_destroy(struct conf_service *service)
 268 {
 269     if (service)
 270     {
 271         if (!pazpar2_decref(&service->ref_count, service->mutex))
 272         {
 273             service_xslt_destroy(service);
 274             pp2_charset_fact_destroy(service->charsets);
 275             ccl_qual_rm(&service->ccl_bibset);
 276             yaz_mutex_destroy(&service->mutex);
 277             nmem_destroy(service->nmem);
 278         }
 279     }
 280 }
 281
 282 void service_incref(struct conf_service *service)
 283 {
 284     pazpar2_incref(&service->ref_count, service->mutex);
 285 }
 286
 287 static int parse_metadata(struct conf_service *service, xmlNode *n,
 288                           int *md_node, int *sk_node)
 289 {
 290     enum conf_metadata_type type = Metadata_type_generic;
 291     enum conf_metadata_merge merge = Metadata_merge_no;
 292     enum conf_setting_type setting = Metadata_setting_no;
 293     enum conf_metadata_mergekey mergekey_type = Metadata_mergekey_no;
 294     int brief = 0;
 295     int termlist = 0;
 296     int sortkey_offset = 0;
 297     xmlChar *xml_name = 0;
 298     xmlChar *xml_brief = 0;
 299     xmlChar *xml_sortkey = 0;
 300     xmlChar *xml_merge = 0;
 301     xmlChar *xml_type = 0;
 302     xmlChar *xml_termlist = 0;
 303     xmlChar *xml_rank = 0;
 304     xmlChar *xml_setting = 0;
 305     xmlChar *xml_mergekey = 0;
 306     xmlChar *xml_limitmap = 0;
 307     xmlChar *xml_limitcluster = 0;
 308     xmlChar *xml_icu_chain = 0;
 309
 310     struct _xmlAttr *attr;
 311
 312     assert(service);
 313
 314     for (attr = n->properties; attr; attr = attr->next)
 315     {
 316         if (!xmlStrcmp(attr->name, BAD_CAST "name") &&
 317             attr->children && attr->children->type == XML_TEXT_NODE)
 318             xml_name = attr->children->content;
 319         else if (!xmlStrcmp(attr->name, BAD_CAST "brief") &&
 320                  attr->children && attr->children->type == XML_TEXT_NODE)
 321             xml_brief = attr->children->content;
 322         else if (!xmlStrcmp(attr->name, BAD_CAST "sortkey") &&
 323                  attr->children && attr->children->type == XML_TEXT_NODE)
 324             xml_sortkey = attr->children->content;
 325         else if (!xmlStrcmp(attr->name, BAD_CAST "merge") &&
 326                  attr->children && attr->children->type == XML_TEXT_NODE)
 327             xml_merge = attr->children->content;
 328         else if (!xmlStrcmp(attr->name, BAD_CAST "type") &&
 329                  attr->children && attr->children->type == XML_TEXT_NODE)
 330             xml_type = attr->children->content;
 331         else if (!xmlStrcmp(attr->name, BAD_CAST "termlist") &&
 332                  attr->children && attr->children->type == XML_TEXT_NODE)
 333             xml_termlist = attr->children->content;
 334         else if (!xmlStrcmp(attr->name, BAD_CAST "rank") &&
 335                  attr->children && attr->children->type == XML_TEXT_NODE)
 336             xml_rank = attr->children->content;
 337         else if (!xmlStrcmp(attr->name, BAD_CAST "setting") &&
 338                  attr->children && attr->children->type == XML_TEXT_NODE)
 339             xml_setting = attr->children->content;
 340         else if (!xmlStrcmp(attr->name, BAD_CAST "mergekey") &&
 341                  attr->children && attr->children->type == XML_TEXT_NODE)
 342             xml_mergekey = attr->children->content;
 343         else if (!xmlStrcmp(attr->name, BAD_CAST "facetrule") &&
 344                  attr->children && attr->children->type == XML_TEXT_NODE)
 345             xml_icu_chain = attr->children->content;
 346         else if (!xmlStrcmp(attr->name, BAD_CAST "limitmap") &&
 347                  attr->children && attr->children->type == XML_TEXT_NODE)
 348             xml_limitmap = attr->children->content;
 349         else if (!xmlStrcmp(attr->name, BAD_CAST "limitcluster") &&
 350                  attr->children && attr->children->type == XML_TEXT_NODE)
 351             xml_limitcluster = attr->children->content;
 352         else
 353         {
 354             yaz_log(YLOG_FATAL, "Unknown metadata attribute '%s'", attr->name);
 355             return -1;
 356         }
 357     }
 358
 359     // now do the parsing logic
 360     if (!xml_name)
 361     {
 362         yaz_log(YLOG_FATAL, "Must specify name in metadata element");
 363         return -1;
 364     }
 365     if (xml_brief)
 366     {
 367         if (!strcmp((const char *) xml_brief, "yes"))
 368             brief = 1;
 369         else if (strcmp((const char *) xml_brief, "no"))
 370         {
 371             yaz_log(YLOG_FATAL, "metadata/brief must be yes or no");
 372             return -1;
 373         }
 374     }
 375
 376     if (xml_termlist)
 377     {
 378         if (!strcmp((const char *) xml_termlist, "yes"))
 379             termlist = 1;
 380         else if (strcmp((const char *) xml_termlist, "no"))
 381         {
 382             yaz_log(YLOG_FATAL, "metadata/termlist must be yes or no");
 383             return -1;
 384         }
 385     }
 386
 387     if (xml_type)
 388     {
 389         if (!strcmp((const char *) xml_type, "generic"))
 390             type = Metadata_type_generic;
 391         else if (!strcmp((const char *) xml_type, "year"))
 392             type = Metadata_type_year;
 393         else if (!strcmp((const char *) xml_type, "date"))
 394             type = Metadata_type_date;
 395         else if (!strcmp((const char *) xml_type, "float"))
 396             type = Metadata_type_float;
 397         else
 398         {
 399             yaz_log(YLOG_FATAL,
 400                     "Unknown value for metadata/type: %s", xml_type);
 401             return -1;
 402         }
 403     }
 404
 405     if (xml_merge)
 406     {
 407         if (!strcmp((const char *) xml_merge, "no"))
 408             merge = Metadata_merge_no;
 409         else if (!strcmp((const char *) xml_merge, "unique"))
 410             merge = Metadata_merge_unique;
 411         else if (!strcmp((const char *) xml_merge, "longest"))
 412             merge = Metadata_merge_longest;
 413         else if (!strcmp((const char *) xml_merge, "range"))
 414             merge = Metadata_merge_range;
 415         else if (!strcmp((const char *) xml_merge, "all"))
 416             merge = Metadata_merge_all;
 417         else if (!strcmp((const char *) xml_merge, "first"))
 418             merge = Metadata_merge_first;
 419         else
 420         {
 421             yaz_log(YLOG_FATAL,
 422                     "Unknown value for metadata/merge: %s", xml_merge);
 423             return -1;
 424         }
 425     }
 426
 427     if (xml_setting)
 428     {
 429         if (!strcmp((const char *) xml_setting, "no"))
 430             setting = Metadata_setting_no;
 431         else if (!strcmp((const char *) xml_setting, "postproc"))
 432             setting = Metadata_setting_postproc;
 433         else if (!strcmp((const char *) xml_setting, "parameter"))
 434             setting = Metadata_setting_parameter;
 435         else
 436         {
 437             yaz_log(YLOG_FATAL,
 438                     "Unknown value for metadata/setting: %s", xml_setting);
 439             return -1;
 440         }
 441     }
 442
 443     // add a sortkey if so specified
 444     if (xml_sortkey && strcmp((const char *) xml_sortkey, "no"))
 445     {
 446         enum conf_metadata_type sk_type = type;
 447         if (merge == Metadata_merge_no)
 448         {
 449             yaz_log(YLOG_FATAL,
 450                     "Can't specify sortkey on a non-merged field");
 451             return -1;
 452         }
 453         if (!strcmp((const char *) xml_sortkey, "yes"))
 454             ;
 455         if (!strcmp((const char *) xml_sortkey, "numeric"))
 456             ;
 457         else if (!strcmp((const char *) xml_sortkey, "skiparticle"))
 458         {
 459             if (sk_type == Metadata_type_generic)
 460                 sk_type = Metadata_type_skiparticle;
 461             else
 462             {
 463                 yaz_log(YLOG_FATAL,
 464                         "skiparticle only supported for type=generic: %s",
 465                     xml_type);
 466                 return -1;
 467             }
 468         }
 469         else
 470         {
 471             yaz_log(YLOG_FATAL,
 472                     "Unknown sortkey in metadata element: %s",
 473                     xml_sortkey);
 474             return -1;
 475         }
 476         sortkey_offset = *sk_node;
 477
 478         conf_service_add_sortkey(service, *sk_node,
 479                                  (const char *) xml_name, sk_type);
 480         (*sk_node)++;
 481     }
 482     else
 483         sortkey_offset = -1;
 484
 485     if (xml_mergekey)
 486     {
 487         if (!strcmp((const char *) xml_mergekey, "required"))
 488             mergekey_type = Metadata_mergekey_required;
 489         else if (!strcmp((const char *) xml_mergekey, "optional"))
 490             mergekey_type = Metadata_mergekey_optional;
 491         else if (!strcmp((const char *) xml_mergekey, "no"))
 492             mergekey_type = Metadata_mergekey_no;
 493         else
 494         {
 495             yaz_log(YLOG_FATAL, "Unknown value for mergekey: %s", xml_mergekey);
 496             return -1;
 497         }
 498     }
 499
 500     // metadata known, assign values
 501     conf_service_add_metadata(service, *md_node,
 502                               (const char *) xml_name,
 503                               type, merge, setting,
 504                               brief, termlist,
 505                               (const char *) xml_rank, sortkey_offset,
 506                               mergekey_type,
 507                               (const char *) xml_icu_chain,
 508                               (const char *) xml_limitmap,
 509                               (const char *) xml_limitcluster);
 510     (*md_node)++;
 511     return 0;
 512 }
 513
 514
 515 static void count_metadata(xmlNode *n, int *num_metadata, int *num_sortkeys)
 516 {
 517     xmlChar *sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
 518     (*num_metadata)++;
 519
 520     if (sortkey && strcmp((const char *) sortkey, "no"))
 521         (*num_sortkeys)++;
 522     xmlFree(sortkey);
 523 }
 524
 525
 526 static struct conf_service *service_create_static(struct conf_server *server,
 527                                                   xmlNode *node,
 528                                                   const char *service_id)
 529 {
 530     xmlNode *n;
 531     int md_node = 0;
 532     int sk_node = 0;
 533
 534     struct conf_service *service = 0;
 535     int num_metadata = 0;
 536     int num_sortkeys = 0;
 537     int got_settings = 0;
 538
 539     // count num_metadata and num_sortkeys
 540     for (n = node->children; n; n = n->next)
 541         if (n->type == XML_ELEMENT_NODE && !strcmp((const char *)
 542                                                    n->name, "metadata"))
 543         {
 544             if (n->children) // This is a <metadata> container, look at its contents.
 545             {
 546                 xmlNode *m;
 547                 for (m = n->children; m; m = m->next)
 548                 {
 549                     if (m->type == XML_ELEMENT_NODE &&
 550                             !strcmp((const char *) m->name, "metadata"))
 551                         count_metadata(m, &num_metadata, &num_sortkeys);
 552                 }
 553             }
 554             else // This is a metadata-element proper, count it right away.
 555                 count_metadata(n, &num_metadata, &num_sortkeys);
 556         }
 557
 558     service = service_init(server, num_metadata, num_sortkeys, service_id);
 559
 560     for (n = node->children; n; n = n->next)
 561     {
 562         if (n->type != XML_ELEMENT_NODE)
 563             continue;
 564         if (!strcmp((const char *) n->name, "timeout"))
 565         {
 566             xmlChar *src = xmlGetProp(n, (xmlChar *) "session");
 567             if (src)
 568             {
 569                 service->session_timeout = atoi((const char *) src);
 570                 xmlFree(src);
 571                 if (service->session_timeout < 9)
 572                 {
 573                     yaz_log(YLOG_FATAL, "session timeout out of range");
 574                     return 0;
 575                 }
 576             }
 577             src = xmlGetProp(n, (xmlChar *) "z3950_operation");
 578             if (src)
 579             {
 580                 service->z3950_operation_timeout = atoi((const char *) src);
 581                 xmlFree(src);
 582                 if (service->z3950_session_timeout < 9)
 583                 {
 584                     yaz_log(YLOG_FATAL, "Z39.50 operation timeout out of range");
 585                     return 0;
 586                 }
 587             }
 588             src = xmlGetProp(n, (xmlChar *) "z3950_session");
 589             if (src)
 590             {
 591                 service->z3950_session_timeout = atoi((const char *) src);
 592                 xmlFree(src);
 593                 if (service->z3950_session_timeout < 9)
 594                 {
 595                     yaz_log(YLOG_FATAL, "Z39.50 session timeout out of range");
 596                     return 0;
 597                 }
 598             }
 599         }
 600         else if (!strcmp((const char *) n->name, "ccldirective"))
 601         {
 602             char *name;
 603             char *value;
 604             if (!service->ccl_bibset)
 605                 service->ccl_bibset = ccl_qual_mk();
 606             name = (char *) xmlGetProp(n, (xmlChar *) "name");
 607             if (!name)
 608             {
 609                 yaz_log(YLOG_FATAL, "ccldirective: missing @name");
 610                 return 0;
 611             }
 612             value = (char *) xmlGetProp(n, (xmlChar *) "value");
 613             if (!value)
 614             {
 615                 xmlFree(name);
 616                 yaz_log(YLOG_FATAL, "ccldirective: missing @value");
 617                 return 0;
 618             }
 619             ccl_qual_add_special(service->ccl_bibset, name, value);
 620             xmlFree(value);
 621             xmlFree(name);
 622         }
 623         else if (!strcmp((const char *) n->name, "settings"))
 624             got_settings++;
 625         else if (!strcmp((const char *) n->name, "icu_chain"))
 626         {
 627             if (!service->charsets)
 628                 service->charsets = pp2_charset_fact_create();
 629             if (pp2_charset_fact_define(service->charsets, n, 0))
 630             {
 631                 yaz_log(YLOG_FATAL, "ICU chain definition error");
 632                 return 0;
 633             }
 634         }
 635         else if (!strcmp((const char *) n->name, "relevance")
 636                  || !strcmp((const char *) n->name, "sort")
 637                  || !strcmp((const char *) n->name, "mergekey")
 638                  || !strcmp((const char *) n->name, "facet"))
 639
 640         {
 641             yaz_log(YLOG_FATAL, "No longer supported: <%s>", n->name);
 642             yaz_log(YLOG_LOG, "Use <icu_chain id=\"%s\">.. instead", n->name);
 643             return 0;
 644         }
 645         else if (!strcmp((const char *) n->name, (const char *) "metadata"))
 646         {
 647             if (n->children) // This is a <metadata> container, look at its content.
 648             {
 649                 xmlNode *m;
 650                 for (m = n->children; m; m = m->next)
 651                     if ((!strcmp((const char *) m->name, (const char *) "metadata")))
 652                         if (parse_metadata(service, m, &md_node, &sk_node))
 653                             return 0;
 654             }
 655             else // This is a metadata-element proper, count it right away.
 656                 if (parse_metadata(service, n, &md_node, &sk_node))
 657                     return 0;
 658         }
 659         else if (!strcmp((const char *) n->name, (const char *) "xslt"))
 660         {
 661             if (service_xslt_config(service, n))
 662                 return 0;
 663         }
 664         else if (!strcmp((const char *) n->name, "rank"))
 665         {
 666             char *rank_cluster = (char *) xmlGetProp(n, (xmlChar *) "cluster");
 667             char *rank_debug = (char *) xmlGetProp(n, (xmlChar *) "debug");
 668             char *rank_follow = (char *) xmlGetProp(n, (xmlChar *) "follow");
 669             char *rank_lead = (char *) xmlGetProp(n, (xmlChar *) "lead");
 670             char *rank_length= (char *) xmlGetProp(n, (xmlChar *) "length");
 671             if (rank_cluster)
 672             {
 673                 if (!strcmp(rank_cluster, "yes"))
 674                     service->rank_cluster = 1;
 675                 else if (!strcmp(rank_cluster, "no"))
 676                     service->rank_cluster = 0;
 677                 else
 678                 {
 679                     yaz_log(YLOG_FATAL, "service: rank@cluster boolean");
 680                     return 0;
 681                 }
 682             }
 683             if (rank_debug)
 684             {
 685                 if (!strcmp(rank_debug, "yes"))
 686                     service->rank_debug = 1;
 687                 else if (!strcmp(rank_debug, "no"))
 688                     service->rank_debug = 0;
 689                 else
 690                 {
 691                     yaz_log(YLOG_FATAL, "service: rank@debug boolean");
 692                     return 0;
 693                 }
 694             }
 695             if (rank_follow)
 696             {
 697                 service->rank_follow = atof(rank_follow);
 698             }
 699             if (rank_lead)
 700             {
 701                 service->rank_lead = atof(rank_lead);
 702             }
 703             if (rank_length)
 704             {
 705                 if (!strcmp(rank_length, "linear"))
 706                     service->rank_length = 2;
 707                 else if (!strcmp(rank_length, "log"))
 708                     service->rank_length = 1;
 709                 else if (!strcmp(rank_length, "none"))
 710                     service->rank_length = 0;
 711                 else
 712                 {
 713                     yaz_log(YLOG_FATAL, "service: rank@length linear|log|none");
 714                     return 0;
 715                 }
 716             }
 717             xmlFree(rank_cluster);
 718             xmlFree(rank_debug);
 719             xmlFree(rank_follow);
 720             xmlFree(rank_lead);
 721             xmlFree(rank_length);
 722         }
 723         else if (!strcmp((const char *) n->name, "sort-default"))
 724         {
 725             char *default_sort = (char *) xmlGetProp(n, (xmlChar *) "field");
 726
 727             if (default_sort && strcmp(default_sort, "")) {
 728                 service->default_sort = nmem_strdup(service->nmem, default_sort);
 729                 yaz_log(YLOG_LOG, "service %s: default sort order configured to: %s",
 730                         service_id ? service_id : "unnamed", default_sort);
 731             }
 732             else
 733             {
 734                 yaz_log(YLOG_FATAL, "default sort order is invalid: %s", default_sort);
 735                 return 0;
 736             }
 737             xmlFree(default_sort);
 738         }
 739         else
 740         {
 741             char tmp[80];
 742             yaz_log(YLOG_FATAL, "Bad element: %s . Context: %s", n->name,
 743                     xml_context(n, tmp, sizeof tmp));
 744             return 0;
 745         }
 746     }
 747     if (got_settings)
 748     {
 749         int pass;
 750         /* metadata has been read.. Consider now settings */
 751         init_settings(service);
 752         for (pass = 1; pass <= 2; pass++)
 753         {
 754             for (n = node->children; n; n = n->next)
 755             {
 756                 if (n->type != XML_ELEMENT_NODE)
 757                     continue;
 758                 if (!strcmp((const char *) n->name, "settings"))
 759                 {
 760                     int ret;
 761                     xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
 762                     if (src)
 763                     {
 764                         WRBUF w = wrbuf_alloc();
 765                         conf_dir_path(server->config, w, (const char *) src);
 766                         ret = settings_read_file(service, wrbuf_cstr(w), pass);
 767                         wrbuf_destroy(w);
 768                         xmlFree(src);
 769                     }
 770                     else
 771                     {
 772                         ret = settings_read_node(service, n, pass);
 773                     }
 774                     if (ret)
 775                         return 0;
 776                 }
 777             }
 778         }
 779     }
 780
 781     {
 782         xmlBufferPtr buf = xmlBufferCreate();
 783         xmlNodeDump(buf, node->doc, node, 0, 0);
 784         service->xml_node =
 785             nmem_strdupn(service->nmem, (const char *) buf->content, buf->use);
 786         xmlBufferFree(buf);
 787     }
 788     return service;
 789 }
 790
 791 static int inherit_server_settings(struct conf_service *s)
 792 {
 793     int ret = 0;
 794     struct conf_server *server = s->server;
 795     if (!s->dictionary) /* service has no config settings ? */
 796     {
 797         if (server->settings_fname)
 798         {
 799             /* inherit settings from server */
 800             init_settings(s);
 801             if (settings_read_file(s, server->settings_fname, 1))
 802                 ret = -1;
 803             if (settings_read_file(s, server->settings_fname, 2))
 804                 ret = -1;
 805         }
 806         else
 807         {
 808             yaz_log(YLOG_WARN, "server '%s' has no settings", s->id ? s->id : "unnamed");
 809             init_settings(s);
 810         }
 811     }
 812
 813     /* use relevance/sort/mergekey/facet from server if not defined
 814        for this service.. */
 815     if (!s->charsets)
 816     {
 817         if (server->charsets)
 818         {
 819             s->charsets = server->charsets;
 820             pp2_charset_fact_incref(s->charsets);
 821         }
 822         else
 823         {
 824             s->charsets = pp2_charset_fact_create();
 825         }
 826     }
 827     return ret;
 828 }
 829
 830 struct conf_service *service_create(struct conf_server *server,
 831                                     xmlNode *node)
 832 {
 833     struct conf_service *service = service_create_static(server, node, 0);
 834     if (service)
 835     {
 836         inherit_server_settings(service);
 837         assert(service->mutex == 0);
 838         pazpar2_mutex_create(&service->mutex, "conf");
 839     }
 840     return service;
 841 }
 842
 843 static struct conf_server *server_create(struct conf_config *config,
 844                                          NMEM nmem, xmlNode *node)
 845 {
 846     xmlNode *n;
 847     struct conf_server *server = nmem_malloc(nmem, sizeof(struct conf_server));
 848     xmlChar *server_id = xmlGetProp(node, (xmlChar *) "id");
 849
 850     server->host = "@";
 851     server->port = 0;
 852     server->proxy_host = 0;
 853     server->proxy_port = 0;
 854     server->myurl = 0;
 855     server->service = 0;
 856     server->config = config;
 857     server->next = 0;
 858     server->charsets = 0;
 859     server->http_server = 0;
 860     server->iochan_man = 0;
 861     server->settings_fname = 0;
 862
 863     if (server_id)
 864     {
 865         server->server_id = nmem_strdup(nmem, (const char *)server_id);
 866         xmlFree(server_id);
 867     }
 868     else
 869         server->server_id = 0;
 870     for (n = node->children; n; n = n->next)
 871     {
 872         if (n->type != XML_ELEMENT_NODE)
 873             continue;
 874         if (!strcmp((const char *) n->name, "listen"))
 875         {
 876             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 877             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 878
 879             if (port)
 880                 server->port = nmem_strdup(nmem, (const char *) port);
 881             if (host)
 882                 server->host = nmem_strdup(nmem, (const char *) host);
 883
 884             xmlFree(port);
 885             xmlFree(host);
 886         }
 887         else if (!strcmp((const char *) n->name, "proxy"))
 888         {
 889             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 890             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 891             xmlChar *myurl = xmlGetProp(n, (xmlChar *) "myurl");
 892             if (port)
 893                 server->proxy_port = atoi((const char *) port);
 894             if (host)
 895                 server->proxy_host = nmem_strdup(nmem, (const char *) host);
 896             if (myurl)
 897                 server->myurl = nmem_strdup(nmem, (const char *) myurl);
 898             xmlFree(port);
 899             xmlFree(host);
 900             xmlFree(myurl);
 901         }
 902         else if (!strcmp((const char *) n->name, "settings"))
 903         {
 904             xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
 905             WRBUF w;
 906             if (!src)
 907             {
 908                 yaz_log(YLOG_FATAL, "Missing src attribute for settings");
 909                 return 0;
 910             }
 911             if (server->settings_fname)
 912             {
 913                 xmlFree(src);
 914                 yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
 915                 return 0;
 916             }
 917             w = wrbuf_alloc();
 918             conf_dir_path(config, w, (const char *) src);
 919             server->settings_fname = nmem_strdup(nmem, wrbuf_cstr(w));
 920             wrbuf_destroy(w);
 921             xmlFree(src);
 922         }
 923         else if (!strcmp((const char *) n->name, "icu_chain"))
 924         {
 925             if (!server->charsets)
 926                 server->charsets = pp2_charset_fact_create();
 927             if (pp2_charset_fact_define(server->charsets, n, 0))
 928             {
 929                 yaz_log(YLOG_FATAL, "ICU chain definition error");
 930                 return 0;
 931             }
 932         }
 933         else if (!strcmp((const char *) n->name, "relevance")
 934                  || !strcmp((const char *) n->name, "sort")
 935                  || !strcmp((const char *) n->name, "mergekey")
 936                  || !strcmp((const char *) n->name, "facet"))
 937         {
 938             yaz_log(YLOG_FATAL, "No longer supported: <%s>", n->name);
 939             yaz_log(YLOG_LOG, "Use <icu_chain id=\"%s\">.. instead", n->name);
 940             return 0;
 941         }
 942         else if (!strcmp((const char *) n->name, "service"))
 943         {
 944             char *service_id = (char *)
 945                 xmlGetProp(n, (xmlChar *) "id");
 946
 947             struct conf_service **sp = &server->service;
 948             for (; *sp; sp = &(*sp)->next)
 949                 if ((*sp)->id && service_id &&
 950                     0 == strcmp((*sp)->id, service_id))
 951                 {
 952                     yaz_log(YLOG_FATAL, "Duplicate service: %s", service_id);
 953                     break;
 954                 }
 955                 else if (!(*sp)->id && !service_id)
 956                 {
 957                     yaz_log(YLOG_FATAL, "Duplicate unnamed service");
 958                     break;
 959                 }
 960
 961             if (*sp)  /* service already exist */
 962             {
 963                 xmlFree(service_id);
 964                 return 0;
 965             }
 966             else
 967             {
 968                 struct conf_service *s = service_create_static(server, n,
 969                                                                service_id);
 970                 xmlFree(service_id);
 971                 if (!s)
 972                     return 0;
 973                 *sp = s;
 974             }
 975         }
 976         else
 977         {
 978             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 979             return 0;
 980         }
 981     }
 982     if (!server->port)
 983     {
 984         yaz_log(YLOG_FATAL, "No listening port given");
 985         return 0;
 986     }
 987     if (server->service)
 988     {
 989         struct conf_service *s;
 990         for (s = server->service; s; s = s->next)
 991             inherit_server_settings(s);
 992     }
 993     return server;
 994 }
 995
 996 WRBUF conf_get_fname(struct conf_config *config, const char *fname)
 997 {
 998     WRBUF w = wrbuf_alloc();
 999
1000     conf_dir_path(config, w, fname);
1001     return w;
1002 }
1003
1004 struct conf_service *locate_service(struct conf_server *server,
1005                                     const char *service_id)
1006 {
1007     struct conf_service *s = server->service;
1008     for (; s; s = s->next)
1009         if (s->id && service_id && 0 == strcmp(s->id, service_id))
1010             break;
1011         else if (!s->id && !service_id)
1012             break;
1013     if (s)
1014         service_incref(s);
1015     return s;
1016 }
1017
1018 static void info_service_metadata(struct conf_service *service, WRBUF w)
1019 {
1020     int i;
1021     struct conf_metadata *md;
1022
1023     if (service->num_metadata)
1024     {
1025         for (i = 0; i < service->num_metadata; i++)
1026         {
1027             md = &(service->metadata[i]);
1028             wrbuf_puts(w, "   <metadata");
1029             if (md->name) {
1030                 wrbuf_puts(w, " name=\"");
1031                 wrbuf_xmlputs(w, md->name);
1032                 wrbuf_puts(w, "\"");
1033             }
1034             if (md->brief) {
1035                 wrbuf_puts(w, " brief=\"yes\"");
1036             }
1037             if (md->termlist) {
1038                 wrbuf_puts(w, " termlist=\"yes\"");
1039             }
1040             if (md->rank) {
1041                 wrbuf_puts(w, " rank=\"");
1042                 wrbuf_xmlputs(w, md->rank);
1043                 wrbuf_puts(w, "\"");
1044             }
1045             if (md->sortkey_offset > 0) {
1046                 wrbuf_puts(w, " sortkey=\"");
1047                 switch (service->sortkeys[md->sortkey_offset].type)
1048                 {
1049                 case Metadata_type_relevance:
1050                     wrbuf_puts(w, "relevance");
1051                     break;
1052                 case Metadata_type_skiparticle:
1053                     wrbuf_puts(w, "skiparticle");
1054                     break;
1055                 case Metadata_type_position:
1056                     wrbuf_puts(w, "position");
1057                     break;
1058                 default:
1059                     wrbuf_puts(w, "yes");
1060                     break;
1061                 }
1062                 wrbuf_puts(w, "\"");
1063             }
1064             switch (md->type)
1065             {
1066             case Metadata_type_generic:
1067             case Metadata_type_skiparticle:
1068                 break;
1069             case Metadata_type_year:
1070                 wrbuf_puts(w, " type=\"year\"");
1071                 break;
1072             case Metadata_type_date:
1073                 wrbuf_puts(w, " type=\"date\"");
1074                 break;
1075             case Metadata_type_float:
1076                 wrbuf_puts(w, " type=\"float\"");
1077                 break;
1078             case Metadata_type_relevance:
1079             case Metadata_type_position:
1080                 break;
1081             }
1082             switch (md->merge)
1083             {
1084             case Metadata_merge_no:
1085                 break;
1086             case Metadata_merge_unique:
1087                 wrbuf_puts(w, " merge=\"unique\"");
1088                 break;
1089             case Metadata_merge_longest:
1090                 wrbuf_puts(w, " merge=\"longest\"");
1091                 break;
1092             case Metadata_merge_range:
1093                 wrbuf_puts(w, " merge=\"range\"");
1094                 break;
1095             case Metadata_merge_all:
1096                 wrbuf_puts(w, " merge=\"all\"");
1097                 break;
1098             case Metadata_merge_first:
1099                 wrbuf_puts(w, " merge=\"first\"");
1100                 break;
1101             }
1102             switch (md->mergekey)
1103             {
1104             case Metadata_mergekey_no:
1105                 break;
1106             case Metadata_mergekey_optional:
1107                 wrbuf_puts(w, " mergekey=\"optional\"");
1108                 break;
1109             case Metadata_mergekey_required:
1110                 wrbuf_puts(w, " mergekey=\"required\"");
1111                 break;
1112             }
1113             wrbuf_puts(w, " />\n");
1114         }
1115     }
1116 }
1117
1118 static void info_service_databases(struct conf_service *service, WRBUF w)
1119 {
1120     struct database *db;
1121     struct setting *s;
1122     int i;
1123
1124     if (service->databases)
1125     {
1126         wrbuf_puts(w, "   <databases>\n");
1127         for(db = service->databases; db; db = db->next)
1128         {
1129             wrbuf_puts(w, "    <database");
1130             if (db->id)
1131             {
1132                 wrbuf_puts(w, " id=\"");
1133                 wrbuf_printf(w, "%s", db->id);
1134                 wrbuf_puts(w, "\"");
1135             }
1136             wrbuf_puts(w, ">\n");
1137             for (i = 0; i < db->num_settings; i++)
1138             {
1139                 s = db->settings[i];
1140                 while (s != NULL)
1141                 {
1142                     wrbuf_puts(w, "     <setting");
1143                     wrbuf_puts(w, " name=\"");
1144                     wrbuf_xmlputs(w, s->name);
1145                     wrbuf_puts(w, "\"");
1146                     wrbuf_puts(w, " value=\"");
1147                     wrbuf_xmlputs(w, s->value);
1148                     wrbuf_puts(w, "\"");
1149                     wrbuf_puts(w, " />\n");
1150                     s = s->next;
1151                 }
1152             }
1153             wrbuf_puts(w, "    </database>\n");
1154         }
1155         wrbuf_puts(w, "   </databases>\n");
1156     }
1157 }
1158
1159 void info_services(struct conf_server *server, WRBUF w)
1160 {
1161     struct conf_service *s = server->service;
1162     int i;
1163     struct setting *S;
1164
1165     wrbuf_puts(w, " <services>\n");
1166     for (; s; s = s->next)
1167     {
1168         wrbuf_puts(w, "  <service");
1169         if (s->id)
1170         {
1171             wrbuf_puts(w, " id=\"");
1172             wrbuf_xmlputs(w, s->id);
1173             wrbuf_puts(w, "\"");
1174         }
1175         wrbuf_puts(w, ">\n");
1176         if (s->settings)
1177         {
1178             for (i=0; i<s->settings->num_settings; i++)
1179             {
1180                 S = s->settings->settings[i];
1181                 while (S != NULL) {
1182                     wrbuf_puts(w, "   <setting");
1183                     wrbuf_puts(w, " name=\"");
1184                     wrbuf_xmlputs(w,  S->name);
1185                     wrbuf_puts(w, "\"");
1186                     wrbuf_puts(w, " value=\"");
1187                     wrbuf_xmlputs(w, S->value);
1188                     wrbuf_puts(w, "\"");
1189                     if (S->target) {
1190                         wrbuf_puts(w, " target=\"");
1191                         wrbuf_xmlputs(w, S->target);
1192                         wrbuf_puts(w, "\"");
1193                     }
1194
1195                     wrbuf_puts(w, " />\n");
1196
1197                     S = S->next;
1198                 }
1199             }
1200         }
1201         info_service_metadata(s, w);
1202         info_service_databases(s, w);
1203         wrbuf_puts(w, "  </service>");
1204
1205         wrbuf_puts(w, "\n");
1206     }
1207     wrbuf_puts(w, " </services>\n");
1208 }
1209
1210 static int parse_config(struct conf_config *config, xmlNode *root)
1211 {
1212     xmlNode *n;
1213
1214     for (n = root->children; n; n = n->next)
1215     {
1216         if (n->type != XML_ELEMENT_NODE)
1217             continue;
1218         if (!strcmp((const char *) n->name, "server"))
1219         {
1220             struct conf_server *tmp = server_create(config, config->nmem, n);
1221             if (!tmp)
1222                 return -1;
1223             tmp->next = config->servers;
1224             config->servers = tmp;
1225         }
1226         else if (!strcmp((const char *) n->name, "threads"))
1227         {
1228             xmlChar *number = xmlGetProp(n, (xmlChar *) "number");
1229             if (number)
1230             {
1231                 config->no_threads = atoi((const char *) number);
1232                 xmlFree(number);
1233             }
1234         }
1235         else if (!strcmp((const char *) n->name, "targetprofiles"))
1236         {
1237             yaz_log(YLOG_FATAL, "targetprofiles unsupported here. Must be part of service");
1238             return -1;
1239
1240         }
1241         else
1242         {
1243             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
1244             return -1;
1245         }
1246     }
1247     return 0;
1248 }
1249
1250 struct conf_config *config_create(const char *fname, int verbose)
1251 {
1252     xmlDoc *doc = xmlReadFile(fname,
1253                               NULL,
1254                               XML_PARSE_XINCLUDE
1255                               + XML_PARSE_NSCLEAN + XML_PARSE_NONET);
1256     xmlNode *n;
1257     const char *p;
1258     int r;
1259     NMEM nmem = nmem_create();
1260     struct conf_config *config = nmem_malloc(nmem, sizeof(struct conf_config));
1261
1262     xmlSubstituteEntitiesDefault(1);
1263     xmlLoadExtDtdDefaultValue = 1;
1264     if (!doc)
1265     {
1266         yaz_log(YLOG_FATAL, "Failed to read %s", fname);
1267         nmem_destroy(nmem);
1268         return 0;
1269     }
1270
1271     // Perform XInclude.
1272     r = xmlXIncludeProcess(doc);
1273     if (r == -1)
1274     {
1275         yaz_log(YLOG_FATAL, "XInclude processing failed");
1276         return 0;
1277     }
1278
1279     config->nmem = nmem;
1280     config->servers = 0;
1281     config->no_threads = 0;
1282     config->iochan_man = 0;
1283
1284     config->confdir = wrbuf_alloc();
1285     if ((p = strrchr(fname,
1286 #ifdef WIN32
1287                      '\\'
1288 #else
1289                      '/'
1290 #endif
1291              )))
1292     {
1293         int len = p - fname;
1294         wrbuf_write(config->confdir, fname, len);
1295     }
1296     wrbuf_puts(config->confdir, "");
1297
1298     n = xmlDocGetRootElement(doc);
1299     r = yaz_xml_include_simple(n, wrbuf_cstr(config->confdir));
1300     if (r == 0) /* OK */
1301     {
1302         if (verbose)
1303         {
1304             yaz_log(YLOG_LOG, "Configuration %s after include processing",
1305                     fname);
1306 #if LIBXML_VERSION >= 20600
1307             xmlDocFormatDump(yaz_log_file(), doc, 0);
1308 #else
1309             xmlDocDump(yaz_log_file(), doc);
1310 #endif
1311         }
1312         r = parse_config(config, n);
1313     }
1314     xmlFreeDoc(doc);
1315
1316     if (r)
1317     {
1318         config_destroy(config);
1319         return 0;
1320     }
1321     return config;
1322 }
1323
1324 void server_destroy(struct conf_server *server)
1325 {
1326     struct conf_service *s = server->service;
1327     while (s)
1328     {
1329         struct conf_service *s_next = s->next;
1330         service_destroy(s);
1331         s = s_next;
1332     }
1333     pp2_charset_fact_destroy(server->charsets);
1334     http_server_destroy(server->http_server);
1335 }
1336
1337 void config_destroy(struct conf_config *config)
1338 {
1339     if (config)
1340     {
1341         struct conf_server *server = config->servers;
1342         iochan_man_destroy(&config->iochan_man);
1343         while (server)
1344         {
1345             struct conf_server *s_next = server->next;
1346             server_destroy(server);
1347             server = s_next;
1348         }
1349         wrbuf_destroy(config->confdir);
1350         nmem_destroy(config->nmem);
1351     }
1352 }
1353
1354 void config_stop_listeners(struct conf_config *conf)
1355 {
1356     struct conf_server *ser;
1357     for (ser = conf->servers; ser; ser = ser->next)
1358         http_close_server(ser);
1359 }
1360
1361 void config_process_events(struct conf_config *conf)
1362 {
1363     struct conf_server *ser;
1364
1365     for (ser = conf->servers; ser; ser = ser->next)
1366     {
1367         struct conf_service *s = ser->service;
1368
1369         for (;s ; s = s->next)
1370         {
1371             assert(s->mutex == 0);
1372             pazpar2_mutex_create(&s->mutex, "service");
1373         }
1374         http_mutex_init(ser);
1375     }
1376     iochan_man_events(conf->iochan_man);
1377 }
1378
1379 int config_start_listeners(struct conf_config *conf,
1380                            const char *listener_override,
1381                            const char *record_fname)
1382 {
1383     struct conf_server *ser;
1384
1385     conf->iochan_man = iochan_man_create(conf->no_threads);
1386     for (ser = conf->servers; ser; ser = ser->next)
1387     {
1388         WRBUF w;
1389         int r;
1390
1391         ser->iochan_man = conf->iochan_man;
1392         if (listener_override)
1393         {
1394             const char *cp = strrchr(listener_override, ':');
1395             if (cp)
1396             {
1397                 ser->host = nmem_strdupn(conf->nmem, listener_override,
1398                                          cp - listener_override);
1399                 ser->port = nmem_strdup(conf->nmem, cp + 1);
1400             }
1401             else
1402             {
1403                 ser->host = "@";
1404                 ser->port = nmem_strdup(conf->nmem, listener_override);
1405             }
1406             listener_override = 0; /* only first server is overriden */
1407         }
1408         r = http_init(ser, record_fname);
1409         if (r)
1410             return -1;
1411
1412         w = wrbuf_alloc();
1413         if (ser->proxy_host || ser->proxy_port)
1414         {
1415             if (ser->proxy_host)
1416                 wrbuf_puts(w, ser->proxy_host);
1417             if (ser->proxy_port)
1418             {
1419                 if (wrbuf_len(w))
1420                     wrbuf_puts(w, ":");
1421                 wrbuf_printf(w, "%d", ser->proxy_port);
1422             }
1423         }
1424         if (wrbuf_len(w))
1425             http_set_proxyaddr(wrbuf_cstr(w), ser);
1426         wrbuf_destroy(w);
1427     }
1428     return 0;
1429 }
1430
1431 /*
1432  * Local variables:
1433  * c-basic-offset: 4
1434  * c-file-style: "Stroustrup"
1435  * indent-tabs-mode: nil
1436  * End:
1437  * vim: shiftwidth=4 tabstop=8 expandtab
1438  */
1439