src/zoom-c.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2008 Index Data
   3  * See the file LICENSE for details.
   4  */
   5 /**
   6  * \file zoom-c.c
   7  * \brief Implements ZOOM C interface.
   8  */
   9
  10 #include <assert.h>
  11 #include <string.h>
  12 #include <errno.h>
  13 #include "zoom-p.h"
  14
  15 #include <yaz/yaz-util.h>
  16 #include <yaz/xmalloc.h>
  17 #include <yaz/otherinfo.h>
  18 #include <yaz/log.h>
  19 #include <yaz/pquery.h>
  20 #include <yaz/marcdisp.h>
  21 #include <yaz/diagbib1.h>
  22 #include <yaz/charneg.h>
  23 #include <yaz/ill.h>
  24 #include <yaz/srw.h>
  25 #include <yaz/cql.h>
  26 #include <yaz/ccl.h>
  27 #include <yaz/query-charset.h>
  28 #include <yaz/copy_types.h>
  29 #include <yaz/snprintf.h>
  30
  31 static int log_api = 0;
  32 static int log_details = 0;
  33
  34 typedef enum {
  35     zoom_pending,
  36     zoom_complete
  37 } zoom_ret;
  38
  39 static void resultset_destroy(ZOOM_resultset r);
  40 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c);
  41 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
  42 static char *cql2pqf(ZOOM_connection c, const char *cql);
  43
  44
  45 /*
  46  * This wrapper is just for logging failed lookups.  It would be nicer
  47  * if it could cause failure when a lookup fails, but that's hard.
  48  */
  49 static Odr_oid *zoom_yaz_str_to_z3950oid(ZOOM_connection c,
  50                                      oid_class oid_class, const char *str) {
  51     Odr_oid *res = yaz_string_to_oid_odr(yaz_oid_std(), oid_class, str,
  52                                      c->odr_out);
  53     if (res == 0)
  54         yaz_log(YLOG_WARN, "%p OID lookup (%d, '%s') failed",
  55                 c, (int) oid_class, str);
  56     return res;
  57 }
  58
  59
  60 static void initlog(void)
  61 {
  62     static int log_level_initialized = 0;
  63     if (!log_level_initialized)
  64     {
  65         log_api = yaz_log_module_level("zoom");
  66         log_details = yaz_log_module_level("zoomdetails");
  67         log_level_initialized = 1;
  68     }
  69 }
  70
  71 static ZOOM_Event ZOOM_Event_create(int kind)
  72 {
  73     ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
  74     event->kind = kind;
  75     event->next = 0;
  76     event->prev = 0;
  77     yaz_log(log_details, "ZOOM_Event_create(kind=%d)", kind);
  78     return event;
  79 }
  80
  81 static void ZOOM_Event_destroy(ZOOM_Event event)
  82 {
  83     xfree(event);
  84 }
  85
  86 static void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
  87 {
  88     if (c->m_queue_back)
  89     {
  90         c->m_queue_back->prev = event;
  91         assert(c->m_queue_front);
  92     }
  93     else
  94     {
  95         assert(!c->m_queue_front);
  96         c->m_queue_front = event;
  97     }
  98     event->next = c->m_queue_back;
  99     event->prev = 0;
 100     c->m_queue_back = event;
 101 }
 102
 103 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
 104 {
 105     ZOOM_Event event = c->m_queue_front;
 106     if (!event)
 107     {
 108         c->last_event = ZOOM_EVENT_NONE;
 109         return 0;
 110     }
 111     assert(c->m_queue_back);
 112     c->m_queue_front = event->prev;
 113     if (c->m_queue_front)
 114     {
 115         assert(c->m_queue_back);
 116         c->m_queue_front->next = 0;
 117     }
 118     else
 119         c->m_queue_back = 0;
 120     c->last_event = event->kind;
 121     return event;
 122 }
 123
 124 static void ZOOM_connection_remove_events(ZOOM_connection c)
 125 {
 126     ZOOM_Event event;
 127     while ((event = ZOOM_connection_get_event(c)))
 128         ZOOM_Event_destroy(event);
 129 }
 130
 131 ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
 132 {
 133     ZOOM_Event event = c->m_queue_front;
 134
 135     return event ? event->kind : ZOOM_EVENT_NONE;
 136 }
 137
 138 void ZOOM_connection_remove_tasks(ZOOM_connection c);
 139
 140 static void set_dset_error(ZOOM_connection c, int error,
 141                            const char *dset,
 142                            const char *addinfo, const char *addinfo2)
 143 {
 144     char *cp;
 145
 146     xfree(c->addinfo);
 147     c->addinfo = 0;
 148     c->error = error;
 149     if (!c->diagset || strcmp(dset, c->diagset))
 150     {
 151         xfree(c->diagset);
 152         c->diagset = xstrdup(dset);
 153         /* remove integer part from SRW diagset .. */
 154         if ((cp = strrchr(c->diagset, '/')))
 155             *cp = '\0';
 156     }
 157     if (addinfo && addinfo2)
 158     {
 159         c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 2);
 160         strcpy(c->addinfo, addinfo);
 161         strcat(c->addinfo, addinfo2);
 162     }
 163     else if (addinfo)
 164         c->addinfo = xstrdup(addinfo);
 165     if (error != ZOOM_ERROR_NONE)
 166     {
 167         yaz_log(log_api, "%p set_dset_error %s %s:%d %s %s",
 168                 c, c->host_port ? c->host_port : "<>", dset, error,
 169                 addinfo ? addinfo : "",
 170                 addinfo2 ? addinfo2 : "");
 171         ZOOM_connection_remove_tasks(c);
 172     }
 173 }
 174
 175 static int uri_to_code(const char *uri)
 176 {
 177     int code = 0;
 178     const char *cp;
 179     if ((cp = strrchr(uri, '/')))
 180         code = atoi(cp+1);
 181     return code;
 182 }
 183
 184 #if YAZ_HAVE_XML2
 185 static void set_HTTP_error(ZOOM_connection c, int error,
 186                            const char *addinfo, const char *addinfo2)
 187 {
 188     set_dset_error(c, error, "HTTP", addinfo, addinfo2);
 189 }
 190
 191 static void set_SRU_error(ZOOM_connection c, Z_SRW_diagnostic *d)
 192 {
 193     const char *uri = d->uri;
 194     if (uri)
 195         set_dset_error(c, uri_to_code(uri), uri, d->details, 0);
 196 }
 197
 198 #endif
 199
 200
 201 static void set_ZOOM_error(ZOOM_connection c, int error,
 202                            const char *addinfo)
 203 {
 204     set_dset_error(c, error, "ZOOM", addinfo, 0);
 205 }
 206
 207 static void clear_error(ZOOM_connection c)
 208 {
 209     /*
 210      * If an error is tied to an operation then it's ok to clear: for
 211      * example, a diagnostic returned from a search is cleared by a
 212      * subsequent search.  However, problems such as Connection Lost
 213      * or Init Refused are not cleared, because they are not
 214      * recoverable: doing another search doesn't help.
 215      */
 216
 217     ZOOM_connection_remove_events(c);
 218     switch (c->error)
 219     {
 220     case ZOOM_ERROR_CONNECT:
 221     case ZOOM_ERROR_MEMORY:
 222     case ZOOM_ERROR_DECODE:
 223     case ZOOM_ERROR_CONNECTION_LOST:
 224     case ZOOM_ERROR_INIT:
 225     case ZOOM_ERROR_INTERNAL:
 226     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
 227         break;
 228     default:
 229         set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 230     }
 231 }
 232
 233 void ZOOM_connection_show_task(ZOOM_task task)
 234 {
 235     switch(task->which)
 236     {
 237     case ZOOM_TASK_SEARCH:
 238         yaz_log(YLOG_LOG, "search p=%p", task);
 239         break;
 240     case ZOOM_TASK_RETRIEVE:
 241         yaz_log(YLOG_LOG, "retrieve p=%p", task);
 242         break;
 243     case ZOOM_TASK_CONNECT:
 244         yaz_log(YLOG_LOG, "connect p=%p", task);
 245         break;
 246     case ZOOM_TASK_SCAN:
 247         yaz_log(YLOG_LOG, "scant p=%p", task);
 248         break;
 249     }
 250 }
 251
 252 void ZOOM_connection_show_tasks(ZOOM_connection c)
 253 {
 254     ZOOM_task task;
 255     yaz_log(YLOG_LOG, "connection p=%p tasks", c);
 256     for (task = c->tasks; task; task = task->next)
 257         ZOOM_connection_show_task(task);
 258 }
 259
 260 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
 261 {
 262     ZOOM_task *taskp = &c->tasks;
 263     while (*taskp)
 264         taskp = &(*taskp)->next;
 265     *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
 266     (*taskp)->running = 0;
 267     (*taskp)->which = which;
 268     (*taskp)->next = 0;
 269     clear_error(c);
 270     return *taskp;
 271 }
 272
 273 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
 274 {
 275     return c->tasks ? 0 : 1;
 276 }
 277
 278 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
 279 {
 280     ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
 281
 282     task->next = c->tasks;
 283     c->tasks = task;
 284
 285     task->running = 0;
 286     task->which = which;
 287     clear_error(c);
 288     return task;
 289 }
 290
 291 void ZOOM_connection_remove_task(ZOOM_connection c)
 292 {
 293     ZOOM_task task = c->tasks;
 294
 295     if (task)
 296     {
 297         c->tasks = task->next;
 298         switch (task->which)
 299         {
 300         case ZOOM_TASK_SEARCH:
 301             resultset_destroy(task->u.search.resultset);
 302             xfree(task->u.search.syntax);
 303             xfree(task->u.search.elementSetName);
 304             break;
 305         case ZOOM_TASK_RETRIEVE:
 306             resultset_destroy(task->u.retrieve.resultset);
 307             xfree(task->u.retrieve.syntax);
 308             xfree(task->u.retrieve.elementSetName);
 309             break;
 310         case ZOOM_TASK_CONNECT:
 311             break;
 312         case ZOOM_TASK_SCAN:
 313             ZOOM_scanset_destroy(task->u.scan.scan);
 314             break;
 315         case ZOOM_TASK_PACKAGE:
 316             ZOOM_package_destroy(task->u.package);
 317             break;
 318         case ZOOM_TASK_SORT:
 319             resultset_destroy(task->u.sort.resultset);
 320             ZOOM_query_destroy(task->u.sort.q);
 321             break;
 322         default:
 323             assert(0);
 324         }
 325         xfree(task);
 326
 327         if (!c->tasks)
 328         {
 329             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
 330             ZOOM_connection_put_event(c, event);
 331         }
 332     }
 333 }
 334
 335 static int ZOOM_connection_exec_task(ZOOM_connection c);
 336
 337 void ZOOM_connection_remove_tasks(ZOOM_connection c)
 338 {
 339     while (c->tasks)
 340         ZOOM_connection_remove_task(c);
 341 }
 342
 343 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
 344                                        const char *syntax,
 345                                        const char *elementSetName);
 346
 347 ZOOM_API(ZOOM_connection)
 348     ZOOM_connection_create(ZOOM_options options)
 349 {
 350     ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
 351
 352     initlog();
 353
 354     yaz_log(log_api, "%p ZOOM_connection_create", c);
 355
 356     c->proto = PROTO_Z3950;
 357     c->cs = 0;
 358     ZOOM_connection_set_mask(c, 0);
 359     c->reconnect_ok = 0;
 360     c->state = STATE_IDLE;
 361     c->addinfo = 0;
 362     c->diagset = 0;
 363     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 364     c->buf_in = 0;
 365     c->len_in = 0;
 366     c->buf_out = 0;
 367     c->len_out = 0;
 368     c->resultsets = 0;
 369
 370     c->options = ZOOM_options_create_with_parent(options);
 371
 372     c->host_port = 0;
 373     c->path = 0;
 374     c->proxy = 0;
 375
 376     c->charset = c->lang = 0;
 377
 378     c->cookie_out = 0;
 379     c->cookie_in = 0;
 380     c->client_IP = 0;
 381     c->tasks = 0;
 382
 383     c->user = 0;
 384     c->group = 0;
 385     c->password = 0;
 386
 387     c->maximum_record_size = 0;
 388     c->preferred_message_size = 0;
 389
 390     c->odr_in = odr_createmem(ODR_DECODE);
 391     c->odr_out = odr_createmem(ODR_ENCODE);
 392
 393     c->async = 0;
 394     c->support_named_resultsets = 0;
 395     c->last_event = ZOOM_EVENT_NONE;
 396
 397     c->m_queue_front = 0;
 398     c->m_queue_back = 0;
 399
 400     c->sru_version = 0;
 401     return c;
 402 }
 403
 404
 405 /* set database names. Take local databases (if set); otherwise
 406    take databases given in ZURL (if set); otherwise use Default */
 407 static char **set_DatabaseNames(ZOOM_connection con, ZOOM_options options,
 408                                 int *num, ODR odr)
 409 {
 410     char **databaseNames;
 411     const char *cp = ZOOM_options_get(options, "databaseName");
 412
 413     if ((!cp || !*cp) && con->host_port)
 414     {
 415         if (strncmp(con->host_port, "unix:", 5) == 0)
 416             cp = strchr(con->host_port+5, ':');
 417         else
 418             cp = strchr(con->host_port, '/');
 419         if (cp)
 420             cp++;
 421     }
 422     if (!cp)
 423         cp = "Default";
 424     nmem_strsplit(odr_getmem(odr), "+", cp,  &databaseNames, num);
 425     return databaseNames;
 426 }
 427
 428 ZOOM_API(ZOOM_connection)
 429     ZOOM_connection_new(const char *host, int portnum)
 430 {
 431     ZOOM_connection c = ZOOM_connection_create(0);
 432
 433     ZOOM_connection_connect(c, host, portnum);
 434     return c;
 435 }
 436
 437 static zoom_sru_mode get_sru_mode_from_string(const char *s)
 438 {
 439     if (!s || !*s)
 440         return zoom_sru_soap;
 441     if (!yaz_matchstr(s, "soap"))
 442         return zoom_sru_soap;
 443     else if (!yaz_matchstr(s, "get"))
 444         return zoom_sru_get;
 445     else if (!yaz_matchstr(s, "post"))
 446         return zoom_sru_post;
 447     return zoom_sru_error;
 448 }
 449
 450 ZOOM_API(void)
 451     ZOOM_connection_connect(ZOOM_connection c,
 452                             const char *host, int portnum)
 453 {
 454     const char *val;
 455     ZOOM_task task;
 456
 457     initlog();
 458
 459     yaz_log(log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
 460             c, host ? host : "null", portnum);
 461
 462     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 463     ZOOM_connection_remove_tasks(c);
 464
 465     if (c->cs)
 466     {
 467         yaz_log(log_details, "%p ZOOM_connection_connect reconnect ok", c);
 468         c->reconnect_ok = 1;
 469         return;
 470     }
 471     yaz_log(log_details, "%p ZOOM_connection_connect connect", c);
 472     xfree(c->proxy);
 473     c->proxy = 0;
 474     val = ZOOM_options_get(c->options, "proxy");
 475     if (val && *val)
 476     {
 477         yaz_log(log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
 478         c->proxy = xstrdup(val);
 479     }
 480
 481     xfree(c->charset);
 482     c->charset = 0;
 483     val = ZOOM_options_get(c->options, "charset");
 484     if (val && *val)
 485     {
 486         yaz_log(log_details, "%p ZOOM_connection_connect charset=%s", c, val);
 487         c->charset = xstrdup(val);
 488     }
 489
 490     xfree(c->lang);
 491     val = ZOOM_options_get(c->options, "lang");
 492     if (val && *val)
 493     {
 494         yaz_log(log_details, "%p ZOOM_connection_connect lang=%s", c, val);
 495         c->lang = xstrdup(val);
 496     }
 497     else
 498         c->lang = 0;
 499
 500     if (host)
 501     {
 502         xfree(c->host_port);
 503         if (portnum)
 504         {
 505             char hostn[128];
 506             sprintf(hostn, "%.80s:%d", host, portnum);
 507             c->host_port = xstrdup(hostn);
 508         }
 509         else
 510             c->host_port = xstrdup(host);
 511     }
 512
 513     {
 514         /*
 515          * If the "<scheme>:" part of the host string is preceded by one
 516          * or more comma-separated <name>=<value> pairs, these are taken
 517          * to be options to be set on the connection object.  Among other
 518          * applications, this facility can be used to embed authentication
 519          * in a host string:
 520          *          user=admin,password=secret,tcp:localhost:9999
 521          */
 522         char *remainder = c->host_port;
 523         char *pcolon = strchr(remainder, ':');
 524         char *pcomma;
 525         char *pequals;
 526         while ((pcomma = strchr(remainder, ',')) != 0 &&
 527                (pcolon == 0 || pcomma < pcolon)) {
 528             *pcomma = '\0';
 529             if ((pequals = strchr(remainder, '=')) != 0) {
 530                 *pequals = '\0';
 531                 /*printf("# setting '%s'='%s'\n", remainder, pequals+1);*/
 532                 ZOOM_connection_option_set(c, remainder, pequals+1);
 533             }
 534             remainder = pcomma+1;
 535         }
 536
 537         if (remainder != c->host_port) {
 538             xfree(c->host_port);
 539             c->host_port = xstrdup(remainder);
 540             /*printf("# reset hp='%s'\n", remainder);*/
 541         }
 542     }
 543
 544     val = ZOOM_options_get(c->options, "sru");
 545     c->sru_mode = get_sru_mode_from_string(val);
 546
 547     xfree(c->sru_version);
 548     val = ZOOM_options_get(c->options, "sru_version");
 549     c->sru_version = xstrdup(val ? val : "1.2");
 550
 551     ZOOM_options_set(c->options, "host", c->host_port);
 552
 553     xfree(c->cookie_out);
 554     c->cookie_out = 0;
 555     val = ZOOM_options_get(c->options, "cookie");
 556     if (val && *val)
 557     {
 558         yaz_log(log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
 559         c->cookie_out = xstrdup(val);
 560     }
 561
 562     xfree(c->client_IP);
 563     c->client_IP = 0;
 564     val = ZOOM_options_get(c->options, "clientIP");
 565     if (val && *val)
 566     {
 567         yaz_log(log_details, "%p ZOOM_connection_connect clientIP=%s",
 568                 c, val);
 569         c->client_IP = xstrdup(val);
 570     }
 571
 572     xfree(c->group);
 573     c->group = 0;
 574     val = ZOOM_options_get(c->options, "group");
 575     if (val && *val)
 576         c->group = xstrdup(val);
 577
 578     xfree(c->user);
 579     c->user = 0;
 580     val = ZOOM_options_get(c->options, "user");
 581     if (val && *val)
 582         c->user = xstrdup(val);
 583
 584     xfree(c->password);
 585     c->password = 0;
 586     val = ZOOM_options_get(c->options, "password");
 587     if (!val)
 588         val = ZOOM_options_get(c->options, "pass");
 589
 590     if (val && *val)
 591         c->password = xstrdup(val);
 592
 593     c->maximum_record_size =
 594         ZOOM_options_get_int(c->options, "maximumRecordSize", 1024*1024);
 595     c->preferred_message_size =
 596         ZOOM_options_get_int(c->options, "preferredMessageSize", 1024*1024);
 597
 598     c->async = ZOOM_options_get_bool(c->options, "async", 0);
 599     if (ZOOM_options_get_bool(c->options, "apdulog", 0))
 600     {
 601         c->odr_print = odr_createmem(ODR_PRINT);
 602         odr_setprint(c->odr_print, yaz_log_file());
 603     }
 604     else
 605         c->odr_print = 0;
 606     yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
 607
 608     task = ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 609
 610     if (!c->async)
 611     {
 612         while (ZOOM_event(1, &c))
 613             ;
 614     }
 615 }
 616
 617 ZOOM_API(ZOOM_query)
 618     ZOOM_query_create(void)
 619 {
 620     ZOOM_query s = (ZOOM_query) xmalloc(sizeof(*s));
 621
 622     yaz_log(log_details, "%p ZOOM_query_create", s);
 623     s->refcount = 1;
 624     s->z_query = 0;
 625     s->sort_spec = 0;
 626     s->odr = odr_createmem(ODR_ENCODE);
 627     s->query_string = 0;
 628
 629     return s;
 630 }
 631
 632 ZOOM_API(void)
 633     ZOOM_query_destroy(ZOOM_query s)
 634 {
 635     if (!s)
 636         return;
 637
 638     (s->refcount)--;
 639     yaz_log(log_details, "%p ZOOM_query_destroy count=%d", s, s->refcount);
 640     if (s->refcount == 0)
 641     {
 642         odr_destroy(s->odr);
 643         xfree(s);
 644     }
 645 }
 646
 647 ZOOM_API(int)
 648     ZOOM_query_prefix(ZOOM_query s, const char *str)
 649 {
 650     s->query_string = odr_strdup(s->odr, str);
 651     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 652     s->z_query->which = Z_Query_type_1;
 653     s->z_query->u.type_1 =  p_query_rpn(s->odr, str);
 654     if (!s->z_query->u.type_1)
 655     {
 656         yaz_log(log_details, "%p ZOOM_query_prefix str=%s failed", s, str);
 657         s->z_query = 0;
 658         return -1;
 659     }
 660     yaz_log(log_details, "%p ZOOM_query_prefix str=%s", s, str);
 661     return 0;
 662 }
 663
 664 ZOOM_API(int)
 665     ZOOM_query_cql(ZOOM_query s, const char *str)
 666 {
 667     Z_External *ext;
 668
 669     s->query_string = odr_strdup(s->odr, str);
 670
 671     ext = (Z_External *) odr_malloc(s->odr, sizeof(*ext));
 672     ext->direct_reference = odr_oiddup(s->odr, yaz_oid_userinfo_cql);
 673     ext->indirect_reference = 0;
 674     ext->descriptor = 0;
 675     ext->which = Z_External_CQL;
 676     ext->u.cql = s->query_string;
 677
 678     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 679     s->z_query->which = Z_Query_type_104;
 680     s->z_query->u.type_104 =  ext;
 681
 682     yaz_log(log_details, "%p ZOOM_query_cql str=%s", s, str);
 683
 684     return 0;
 685 }
 686
 687 /*
 688  * Translate the CQL string client-side into RPN which is passed to
 689  * the server.  This is useful for server's that don't themselves
 690  * support CQL, for which ZOOM_query_cql() is useless.  `conn' is used
 691  * only as a place to stash diagnostics if compilation fails; if this
 692  * information is not needed, a null pointer may be used.
 693  */
 694 ZOOM_API(int)
 695     ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
 696 {
 697     char *rpn;
 698     int ret;
 699     ZOOM_connection freeme = 0;
 700
 701     yaz_log(log_details, "%p ZOOM_query_cql2rpn str=%s conn=%p", s, str, conn);
 702     if (conn == 0)
 703         conn = freeme = ZOOM_connection_create(0);
 704
 705     rpn = cql2pqf(conn, str);
 706     if (freeme != 0)
 707         ZOOM_connection_destroy(freeme);
 708     if (rpn == 0)
 709         return -1;
 710
 711     ret = ZOOM_query_prefix(s, rpn);
 712     xfree(rpn);
 713     return ret;
 714 }
 715
 716 /*
 717  * Analogous in every way to ZOOM_query_cql2rpn(), except that there
 718  * is no analogous ZOOM_query_ccl() that just sends uninterpreted CCL
 719  * to the server, as the YAZ GFS doesn't know how to handle this.
 720  */
 721 ZOOM_API(int)
 722     ZOOM_query_ccl2rpn(ZOOM_query s, const char *str, const char *config,
 723                        int *ccl_error, const char **error_string,
 724                        int *error_pos)
 725 {
 726     int ret;
 727     struct ccl_rpn_node *rpn;
 728     CCL_bibset bibset = ccl_qual_mk();
 729
 730     if (config)
 731         ccl_qual_buf(bibset, config);
 732
 733     rpn = ccl_find_str(bibset, str, ccl_error, error_pos);
 734     if (!rpn)
 735     {
 736         *error_string = ccl_err_msg(*ccl_error);
 737         ret = -1;
 738     }
 739     else
 740     {
 741         WRBUF wr = wrbuf_alloc();
 742         ccl_pquery(wr, rpn);
 743         ccl_rpn_delete(rpn);
 744         ret = ZOOM_query_prefix(s, wrbuf_cstr(wr));
 745         wrbuf_destroy(wr);
 746     }
 747     ccl_qual_rm(&bibset);
 748     return ret;
 749 }
 750
 751 ZOOM_API(int)
 752     ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 753 {
 754     s->sort_spec = yaz_sort_spec(s->odr, criteria);
 755     if (!s->sort_spec)
 756     {
 757         yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s failed",
 758                 s, criteria);
 759         return -1;
 760     }
 761     yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s", s, criteria);
 762     return 0;
 763 }
 764
 765 static zoom_ret do_write(ZOOM_connection c);
 766
 767 ZOOM_API(void)
 768     ZOOM_connection_destroy(ZOOM_connection c)
 769 {
 770     ZOOM_resultset r;
 771     if (!c)
 772         return;
 773     yaz_log(log_api, "%p ZOOM_connection_destroy", c);
 774     if (c->cs)
 775         cs_close(c->cs);
 776     for (r = c->resultsets; r; r = r->next)
 777         r->connection = 0;
 778
 779     xfree(c->buf_in);
 780     xfree(c->addinfo);
 781     xfree(c->diagset);
 782     odr_destroy(c->odr_in);
 783     odr_destroy(c->odr_out);
 784     if (c->odr_print)
 785     {
 786         odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
 787         odr_destroy(c->odr_print);
 788     }
 789     ZOOM_options_destroy(c->options);
 790     ZOOM_connection_remove_tasks(c);
 791     ZOOM_connection_remove_events(c);
 792     xfree(c->host_port);
 793     xfree(c->path);
 794     xfree(c->proxy);
 795     xfree(c->charset);
 796     xfree(c->lang);
 797     xfree(c->cookie_out);
 798     xfree(c->cookie_in);
 799     xfree(c->client_IP);
 800     xfree(c->user);
 801     xfree(c->group);
 802     xfree(c->password);
 803     xfree(c->sru_version);
 804     xfree(c);
 805 }
 806
 807 void ZOOM_resultset_addref(ZOOM_resultset r)
 808 {
 809     if (r)
 810     {
 811         (r->refcount)++;
 812         yaz_log(log_details, "%p ZOOM_resultset_addref count=%d",
 813                 r, r->refcount);
 814     }
 815 }
 816
 817 ZOOM_resultset ZOOM_resultset_create(void)
 818 {
 819     int i;
 820     ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
 821
 822     initlog();
 823
 824     yaz_log(log_details, "%p ZOOM_resultset_create", r);
 825     r->refcount = 1;
 826     r->size = 0;
 827     r->odr = odr_createmem(ODR_ENCODE);
 828     r->piggyback = 1;
 829     r->setname = 0;
 830     r->schema = 0;
 831     r->step = 0;
 832     for (i = 0; i<RECORD_HASH_SIZE; i++)
 833         r->record_hash[i] = 0;
 834     r->r_sort_spec = 0;
 835     r->query = 0;
 836     r->connection = 0;
 837     r->next = 0;
 838     r->databaseNames = 0;
 839     r->num_databaseNames = 0;
 840     return r;
 841 }
 842
 843 ZOOM_API(ZOOM_resultset)
 844     ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
 845 {
 846     ZOOM_resultset r;
 847     ZOOM_query s = ZOOM_query_create();
 848
 849     ZOOM_query_prefix(s, q);
 850
 851     r = ZOOM_connection_search(c, s);
 852     ZOOM_query_destroy(s);
 853     return r;
 854 }
 855
 856 ZOOM_API(ZOOM_resultset)
 857     ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
 858 {
 859     ZOOM_resultset r = ZOOM_resultset_create();
 860     ZOOM_task task;
 861     const char *cp;
 862     int start, count;
 863     const char *syntax, *elementSetName;
 864
 865     yaz_log(log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
 866     r->r_sort_spec = q->sort_spec;
 867     r->query = q;
 868
 869     r->options = ZOOM_options_create_with_parent(c->options);
 870
 871     start = ZOOM_options_get_int(r->options, "start", 0);
 872     count = ZOOM_options_get_int(r->options, "count", 0);
 873     {
 874         /* If "presentChunk" is defined use that; otherwise "step" */
 875         const char *cp = ZOOM_options_get(r->options, "presentChunk");
 876         r->step = ZOOM_options_get_int(r->options,
 877                                        (cp != 0 ? "presentChunk": "step"), 0);
 878     }
 879     r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
 880     cp = ZOOM_options_get(r->options, "setname");
 881     if (cp)
 882         r->setname = xstrdup(cp);
 883     cp = ZOOM_options_get(r->options, "schema");
 884     if (cp)
 885         r->schema = xstrdup(cp);
 886
 887     r->databaseNames = set_DatabaseNames(c, c->options, &r->num_databaseNames,
 888                                          r->odr);
 889
 890     r->connection = c;
 891
 892     r->next = c->resultsets;
 893     c->resultsets = r;
 894
 895
 896
 897     if (c->host_port && c->proto == PROTO_HTTP)
 898     {
 899         if (!c->cs)
 900         {
 901             yaz_log(log_details, "ZOOM_connection_search: no comstack");
 902             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 903         }
 904         else
 905         {
 906             yaz_log(log_details, "ZOOM_connection_search: reconnect");
 907             c->reconnect_ok = 1;
 908         }
 909     }
 910
 911     task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
 912     task->u.search.resultset = r;
 913     task->u.search.start = start;
 914     task->u.search.count = count;
 915
 916     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
 917     task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
 918     elementSetName = ZOOM_options_get(r->options, "elementSetName");
 919     task->u.search.elementSetName = elementSetName
 920         ? xstrdup(elementSetName) : 0;
 921
 922     ZOOM_resultset_addref(r);
 923
 924     (q->refcount)++;
 925
 926     if (!c->async)
 927     {
 928         while (ZOOM_event(1, &c))
 929             ;
 930     }
 931     return r;
 932 }
 933
 934 ZOOM_API(void)
 935     ZOOM_resultset_sort(ZOOM_resultset r,
 936                          const char *sort_type, const char *sort_spec)
 937 {
 938     (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
 939 }
 940
 941 ZOOM_API(int)
 942     ZOOM_resultset_sort1(ZOOM_resultset r,
 943                          const char *sort_type, const char *sort_spec)
 944 {
 945     ZOOM_connection c = r->connection;
 946     ZOOM_task task;
 947     ZOOM_query newq;
 948
 949     newq = ZOOM_query_create();
 950     if (ZOOM_query_sortby(newq, sort_spec) < 0)
 951         return -1;
 952
 953     yaz_log(log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
 954             r, r, sort_type, sort_spec);
 955     if (!c)
 956         return 0;
 957
 958     if (c->host_port && c->proto == PROTO_HTTP)
 959     {
 960         if (!c->cs)
 961         {
 962             yaz_log(log_details, "%p ZOOM_resultset_sort: no comstack", r);
 963             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 964         }
 965         else
 966         {
 967             yaz_log(log_details, "%p ZOOM_resultset_sort: prepare reconnect",
 968                     r);
 969             c->reconnect_ok = 1;
 970         }
 971     }
 972
 973     ZOOM_resultset_cache_reset(r);
 974     task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
 975     task->u.sort.resultset = r;
 976     task->u.sort.q = newq;
 977
 978     ZOOM_resultset_addref(r);
 979
 980     if (!c->async)
 981     {
 982         while (ZOOM_event(1, &c))
 983             ;
 984     }
 985
 986     return 0;
 987 }
 988
 989 ZOOM_API(void)
 990     ZOOM_resultset_cache_reset(ZOOM_resultset r)
 991 {
 992     int i;
 993     for (i = 0; i<RECORD_HASH_SIZE; i++)
 994     {
 995         ZOOM_record_cache rc;
 996         for (rc = r->record_hash[i]; rc; rc = rc->next)
 997         {
 998             if (rc->rec.wrbuf_marc)
 999                 wrbuf_destroy(rc->rec.wrbuf_marc);
1000             if (rc->rec.wrbuf_iconv)
1001                 wrbuf_destroy(rc->rec.wrbuf_iconv);
1002             if (rc->rec.wrbuf_opac)
1003                 wrbuf_destroy(rc->rec.wrbuf_opac);
1004         }
1005         r->record_hash[i] = 0;
1006     }
1007 }
1008
1009 ZOOM_API(void)
1010     ZOOM_resultset_destroy(ZOOM_resultset r)
1011 {
1012     resultset_destroy(r);
1013 }
1014
1015 static void resultset_destroy(ZOOM_resultset r)
1016 {
1017     if (!r)
1018         return;
1019     (r->refcount)--;
1020     yaz_log(log_details, "%p ZOOM_resultset_destroy r=%p count=%d",
1021             r, r, r->refcount);
1022     if (r->refcount == 0)
1023     {
1024         ZOOM_resultset_cache_reset(r);
1025
1026         if (r->connection)
1027         {
1028             /* remove ourselves from the resultsets in connection */
1029             ZOOM_resultset *rp = &r->connection->resultsets;
1030             while (1)
1031             {
1032                 assert(*rp);   /* we must be in this list!! */
1033                 if (*rp == r)
1034                 {   /* OK, we're here - take us out of it */
1035                     *rp = (*rp)->next;
1036                     break;
1037                 }
1038                 rp = &(*rp)->next;
1039             }
1040         }
1041         ZOOM_query_destroy(r->query);
1042         ZOOM_options_destroy(r->options);
1043         odr_destroy(r->odr);
1044         xfree(r->setname);
1045         xfree(r->schema);
1046         xfree(r);
1047     }
1048 }
1049
1050 ZOOM_API(size_t)
1051     ZOOM_resultset_size(ZOOM_resultset r)
1052 {
1053     yaz_log(log_details, "ZOOM_resultset_size r=%p count=%d",
1054             r, r->size);
1055     return r->size;
1056 }
1057
1058 static void do_close(ZOOM_connection c)
1059 {
1060     if (c->cs)
1061         cs_close(c->cs);
1062     c->cs = 0;
1063     ZOOM_connection_set_mask(c, 0);
1064     c->state = STATE_IDLE;
1065 }
1066
1067 static int ZOOM_test_reconnect(ZOOM_connection c)
1068 {
1069     ZOOM_Event event;
1070
1071     if (!c->reconnect_ok)
1072         return 0;
1073     do_close(c);
1074     c->reconnect_ok = 0;
1075     c->tasks->running = 0;
1076     ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1077
1078     event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1079     ZOOM_connection_put_event(c, event);
1080
1081     return 1;
1082 }
1083
1084 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
1085                                     int force_sync, int start, int count)
1086 {
1087     ZOOM_task task;
1088     ZOOM_connection c;
1089     const char *cp;
1090     const char *syntax, *elementSetName;
1091
1092     if (!r)
1093         return;
1094     yaz_log(log_details, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
1095             " count=%d", r, force_sync, start, count);
1096     c = r->connection;
1097     if (!c)
1098         return;
1099
1100     if (c->host_port && c->proto == PROTO_HTTP)
1101     {
1102         if (!c->cs)
1103         {
1104             yaz_log(log_details, "%p ZOOM_resultset_retrieve: no comstack", r);
1105             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1106         }
1107         else
1108         {
1109             yaz_log(log_details, "%p ZOOM_resultset_retrieve: prepare "
1110                     "reconnect", r);
1111             c->reconnect_ok = 1;
1112         }
1113     }
1114     task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
1115     task->u.retrieve.resultset = r;
1116     task->u.retrieve.start = start;
1117     task->u.retrieve.count = count;
1118
1119     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1120     task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
1121     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1122     task->u.retrieve.elementSetName = elementSetName
1123         ? xstrdup(elementSetName) : 0;
1124
1125     cp = ZOOM_options_get(r->options, "schema");
1126     if (cp)
1127     {
1128         if (!r->schema || strcmp(r->schema, cp))
1129         {
1130             xfree(r->schema);
1131             r->schema = xstrdup(cp);
1132         }
1133     }
1134
1135     ZOOM_resultset_addref(r);
1136
1137     if (!r->connection->async || force_sync)
1138         while (r->connection && ZOOM_event(1, &r->connection))
1139             ;
1140 }
1141
1142 ZOOM_API(void)
1143     ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
1144                            size_t start, size_t count)
1145 {
1146     int force_present = 0;
1147
1148     if (!r)
1149         return ;
1150     yaz_log(log_api, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
1151             r, r, (long) start, (long) count);
1152     if (count && recs)
1153         force_present = 1;
1154     ZOOM_resultset_retrieve(r, force_present, start, count);
1155     if (force_present)
1156     {
1157         size_t i;
1158         for (i = 0; i< count; i++)
1159             recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1160     }
1161 }
1162
1163 static void get_cert(ZOOM_connection c)
1164 {
1165     char *cert_buf;
1166     int cert_len;
1167
1168     if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1169     {
1170         ZOOM_connection_option_setl(c, "sslPeerCert",
1171                                     cert_buf, cert_len);
1172         xfree(cert_buf);
1173     }
1174 }
1175
1176 static zoom_ret do_connect(ZOOM_connection c)
1177 {
1178     void *add;
1179     const char *effective_host;
1180
1181     if (c->proxy)
1182         effective_host = c->proxy;
1183     else
1184         effective_host = c->host_port;
1185
1186     yaz_log(log_details, "%p do_connect effective_host=%s", c, effective_host);
1187
1188     if (c->cs)
1189         cs_close(c->cs);
1190     c->cs = cs_create_host(effective_host, 0, &add);
1191
1192     if (c->cs && c->cs->protocol == PROTO_HTTP)
1193     {
1194 #if YAZ_HAVE_XML2
1195         const char *path = 0;
1196
1197         c->proto = PROTO_HTTP;
1198         cs_get_host_args(c->host_port, &path);
1199         xfree(c->path);
1200         c->path = (char*) xmalloc(strlen(path)+2);
1201         c->path[0] = '/';
1202         strcpy(c->path+1, path);
1203 #else
1204         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1205         do_close(c);
1206         return zoom_complete;
1207 #endif
1208     }
1209     if (c->cs)
1210     {
1211         int ret = cs_connect(c->cs, add);
1212         if (ret == 0)
1213         {
1214             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1215             ZOOM_connection_put_event(c, event);
1216             get_cert(c);
1217             if (c->proto == PROTO_Z3950)
1218                 ZOOM_connection_send_init(c);
1219             else
1220             {
1221                 /* no init request for SRW .. */
1222                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1223                 ZOOM_connection_remove_task(c);
1224                 ZOOM_connection_set_mask(c, 0);
1225                 ZOOM_connection_exec_task(c);
1226             }
1227             c->state = STATE_ESTABLISHED;
1228             return zoom_pending;
1229         }
1230         else if (ret > 0)
1231         {
1232             int mask = ZOOM_SELECT_EXCEPT;
1233             if (c->cs->io_pending & CS_WANT_WRITE)
1234                 mask += ZOOM_SELECT_WRITE;
1235             if (c->cs->io_pending & CS_WANT_READ)
1236                 mask += ZOOM_SELECT_READ;
1237             ZOOM_connection_set_mask(c, mask);
1238             c->state = STATE_CONNECTING;
1239             return zoom_pending;
1240         }
1241     }
1242     c->state = STATE_IDLE;
1243     set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1244     return zoom_complete;
1245 }
1246
1247 static void otherInfo_attach(ZOOM_connection c, Z_APDU *a, ODR out)
1248 {
1249     int i;
1250     for (i = 0; i<200; i++)
1251     {
1252         size_t len;
1253         Odr_oid *oid;
1254         Z_OtherInformation **oi;
1255         char buf[80];
1256         const char *val;
1257         const char *cp;
1258
1259         sprintf(buf, "otherInfo%d", i);
1260         val = ZOOM_options_get(c->options, buf);
1261         if (!val)
1262             break;
1263         cp = strchr(val, ':');
1264         if (!cp)
1265             continue;
1266         len = cp - val;
1267         if (len >= sizeof(buf))
1268             len = sizeof(buf)-1;
1269         memcpy(buf, val, len);
1270         buf[len] = '\0';
1271
1272         oid = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_USERINFO,
1273                                     buf, out);
1274         if (!oid)
1275             continue;
1276
1277         yaz_oi_APDU(a, &oi);
1278         yaz_oi_set_string_oid(oi, out, oid, 1, cp+1);
1279     }
1280 }
1281
1282 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
1283 {
1284     assert(a);
1285     if (c->cookie_out)
1286     {
1287         Z_OtherInformation **oi;
1288         yaz_oi_APDU(a, &oi);
1289         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_cookie,
1290                               1, c->cookie_out);
1291     }
1292     if (c->client_IP)
1293     {
1294         Z_OtherInformation **oi;
1295         yaz_oi_APDU(a, &oi);
1296         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_client_ip,
1297                               1, c->client_IP);
1298     }
1299     otherInfo_attach(c, a, out);
1300     if (!z_APDU(out, &a, 0, 0))
1301     {
1302         FILE *outf = fopen("/tmp/apdu.txt", "a");
1303         if (a && outf)
1304         {
1305             ODR odr_pr = odr_createmem(ODR_PRINT);
1306             fprintf(outf, "a=%p\n", a);
1307             odr_setprint(odr_pr, outf);
1308             z_APDU(odr_pr, &a, 0, 0);
1309             odr_destroy(odr_pr);
1310         }
1311         yaz_log(log_api, "%p encoding_APDU: encoding failed", c);
1312         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
1313         odr_reset(out);
1314         return -1;
1315     }
1316     if (c->odr_print)
1317         z_APDU(c->odr_print, &a, 0, 0);
1318     yaz_log(log_details, "%p encoding_APDU encoding OK", c);
1319     return 0;
1320 }
1321
1322 static zoom_ret send_APDU(ZOOM_connection c, Z_APDU *a)
1323 {
1324     ZOOM_Event event;
1325     assert(a);
1326     if (encode_APDU(c, a, c->odr_out))
1327         return zoom_complete;
1328     yaz_log(log_details, "%p send APDU type=%d", c, a->which);
1329     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1330     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1331     ZOOM_connection_put_event(c, event);
1332     odr_reset(c->odr_out);
1333     return do_write(c);
1334 }
1335
1336 /* returns 1 if PDU was sent OK (still pending )
1337    0 if PDU was not sent OK (nothing to wait for)
1338 */
1339
1340 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c)
1341 {
1342     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
1343     Z_InitRequest *ireq = apdu->u.initRequest;
1344     Z_IdAuthentication *auth = (Z_IdAuthentication *)
1345         odr_malloc(c->odr_out, sizeof(*auth));
1346     char *version;
1347
1348     ODR_MASK_SET(ireq->options, Z_Options_search);
1349     ODR_MASK_SET(ireq->options, Z_Options_present);
1350     ODR_MASK_SET(ireq->options, Z_Options_scan);
1351     ODR_MASK_SET(ireq->options, Z_Options_sort);
1352     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
1353     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
1354
1355     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
1356     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
1357     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
1358
1359     /* Index Data's Z39.50 Implementor Id is 81 */
1360     ireq->implementationId =
1361         odr_prepend(c->odr_out,
1362                     ZOOM_options_get(c->options, "implementationId"),
1363                     odr_prepend(c->odr_out, "81", ireq->implementationId));
1364
1365     ireq->implementationName =
1366         odr_prepend(c->odr_out,
1367                     ZOOM_options_get(c->options, "implementationName"),
1368                     odr_prepend(c->odr_out, "ZOOM-C",
1369                                 ireq->implementationName));
1370
1371     version = odr_strdup(c->odr_out, "$Revision: 1.154 $");
1372     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
1373         version[strlen(version)-2] = '\0';
1374     ireq->implementationVersion =
1375         odr_prepend(c->odr_out,
1376                     ZOOM_options_get(c->options, "implementationVersion"),
1377                     odr_prepend(c->odr_out, &version[11],
1378                                 ireq->implementationVersion));
1379
1380     *ireq->maximumRecordSize = c->maximum_record_size;
1381     *ireq->preferredMessageSize = c->preferred_message_size;
1382
1383     if (c->group || c->password)
1384     {
1385         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
1386         pass->groupId = odr_strdup_null(c->odr_out, c->group);
1387         pass->userId = odr_strdup_null(c->odr_out, c->user);
1388         pass->password = odr_strdup_null(c->odr_out, c->password);
1389         auth->which = Z_IdAuthentication_idPass;
1390         auth->u.idPass = pass;
1391         ireq->idAuthentication = auth;
1392     }
1393     else if (c->user)
1394     {
1395         auth->which = Z_IdAuthentication_open;
1396         auth->u.open = odr_strdup(c->odr_out, c->user);
1397         ireq->idAuthentication = auth;
1398     }
1399     if (c->proxy)
1400     {
1401         yaz_oi_set_string_oid(&ireq->otherInfo, c->odr_out,
1402                               yaz_oid_userinfo_proxy, 1, c->host_port);
1403     }
1404     if (c->charset || c->lang)
1405     {
1406         Z_OtherInformation **oi;
1407         Z_OtherInformationUnit *oi_unit;
1408
1409         yaz_oi_APDU(apdu, &oi);
1410
1411         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
1412         {
1413             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
1414             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
1415             oi_unit->information.externallyDefinedInfo =
1416                 yaz_set_proposal_charneg_list(c->odr_out, " ",
1417                                               c->charset, c->lang, 1);
1418         }
1419     }
1420     assert(apdu);
1421     return send_APDU(c, apdu);
1422 }
1423
1424 #if YAZ_HAVE_XML2
1425 static zoom_ret send_srw(ZOOM_connection c, Z_SRW_PDU *sr)
1426 {
1427     Z_GDU *gdu;
1428     ZOOM_Event event;
1429
1430     gdu = z_get_HTTP_Request_host_path(c->odr_out, c->host_port, c->path);
1431
1432     if (c->sru_mode == zoom_sru_get)
1433     {
1434         yaz_sru_get_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1435     }
1436     else if (c->sru_mode == zoom_sru_post)
1437     {
1438         yaz_sru_post_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1439     }
1440     else if (c->sru_mode == zoom_sru_soap)
1441     {
1442         yaz_sru_soap_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1443     }
1444     if (!z_GDU(c->odr_out, &gdu, 0, 0))
1445         return zoom_complete;
1446     if (c->odr_print)
1447         z_GDU(c->odr_print, &gdu, 0, 0);
1448     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1449
1450     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1451     ZOOM_connection_put_event(c, event);
1452     odr_reset(c->odr_out);
1453     return do_write(c);
1454 }
1455 #endif
1456
1457 #if YAZ_HAVE_XML2
1458 static Z_SRW_PDU *ZOOM_srw_get_pdu(ZOOM_connection c, int type)
1459 {
1460     Z_SRW_PDU *sr = yaz_srw_get_pdu(c->odr_out, type, c->sru_version);
1461     sr->username = c->user;
1462     sr->password = c->password;
1463     return sr;
1464 }
1465 #endif
1466
1467 #if YAZ_HAVE_XML2
1468 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1469 {
1470     int i;
1471     int *start, *count;
1472     ZOOM_resultset resultset = 0;
1473     Z_SRW_PDU *sr = 0;
1474     const char *option_val = 0;
1475
1476     if (c->error)                  /* don't continue on error */
1477         return zoom_complete;
1478     assert(c->tasks);
1479     switch(c->tasks->which)
1480     {
1481     case ZOOM_TASK_SEARCH:
1482         resultset = c->tasks->u.search.resultset;
1483         resultset->setname = xstrdup("default");
1484         ZOOM_options_set(resultset->options, "setname", resultset->setname);
1485         start = &c->tasks->u.search.start;
1486         count = &c->tasks->u.search.count;
1487         break;
1488     case ZOOM_TASK_RETRIEVE:
1489         resultset = c->tasks->u.retrieve.resultset;
1490
1491         start = &c->tasks->u.retrieve.start;
1492         count = &c->tasks->u.retrieve.count;
1493
1494         if (*start >= resultset->size)
1495             return zoom_complete;
1496         if (*start + *count > resultset->size)
1497             *count = resultset->size - *start;
1498
1499         for (i = 0; i < *count; i++)
1500         {
1501             ZOOM_record rec =
1502                 record_cache_lookup(resultset, i + *start,
1503                                     c->tasks->u.retrieve.syntax,
1504                                     c->tasks->u.retrieve.elementSetName);
1505             if (!rec)
1506                 break;
1507             else
1508             {
1509                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
1510                 ZOOM_connection_put_event(c, event);
1511             }
1512         }
1513         *start += i;
1514         *count -= i;
1515
1516         if (*count == 0)
1517             return zoom_complete;
1518         break;
1519     default:
1520         return zoom_complete;
1521     }
1522     assert(resultset->query);
1523
1524     sr = ZOOM_srw_get_pdu(c, Z_SRW_searchRetrieve_request);
1525     if (resultset->query->z_query->which == Z_Query_type_104
1526         && resultset->query->z_query->u.type_104->which == Z_External_CQL)
1527     {
1528         sr->u.request->query_type = Z_SRW_query_type_cql;
1529         sr->u.request->query.cql =resultset->query->z_query->u.type_104->u.cql;
1530     }
1531     else if (resultset->query->z_query->which == Z_Query_type_1 &&
1532              resultset->query->z_query->u.type_1)
1533     {
1534         sr->u.request->query_type = Z_SRW_query_type_pqf;
1535         sr->u.request->query.pqf = resultset->query->query_string;
1536     }
1537     else
1538     {
1539         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
1540         return zoom_complete;
1541     }
1542     sr->u.request->startRecord = odr_intdup(c->odr_out, *start + 1);
1543     sr->u.request->maximumRecords = odr_intdup(
1544         c->odr_out, (resultset->step > 0 && resultset->step < *count) ?
1545         resultset->step : *count);
1546     sr->u.request->recordSchema = resultset->schema;
1547
1548     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1549     if (option_val)
1550         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1551
1552     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1553     yaz_encode_sru_extra(sr, c->odr_out, option_val);
1554     return send_srw(c, sr);
1555 }
1556 #else
1557 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1558 {
1559     return zoom_complete;
1560 }
1561 #endif
1562
1563 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1564 {
1565     ZOOM_resultset r;
1566     int lslb, ssub, mspn;
1567     const char *syntax;
1568     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1569     Z_SearchRequest *search_req = apdu->u.searchRequest;
1570     const char *elementSetName;
1571     const char *smallSetElementSetName;
1572     const char *mediumSetElementSetName;
1573
1574     assert(c->tasks);
1575     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1576
1577     r = c->tasks->u.search.resultset;
1578
1579     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1580
1581     elementSetName =
1582         ZOOM_options_get(r->options, "elementSetName");
1583     smallSetElementSetName  =
1584         ZOOM_options_get(r->options, "smallSetElementSetName");
1585     mediumSetElementSetName =
1586         ZOOM_options_get(r->options, "mediumSetElementSetName");
1587
1588     if (!smallSetElementSetName)
1589         smallSetElementSetName = elementSetName;
1590
1591     if (!mediumSetElementSetName)
1592         mediumSetElementSetName = elementSetName;
1593
1594     assert(r);
1595     assert(r->query);
1596
1597     /* prepare query for the search request */
1598     search_req->query = r->query->z_query;
1599     if (!search_req->query)
1600     {
1601         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1602         return zoom_complete;
1603     }
1604     if (r->query->z_query->which == Z_Query_type_1 ||
1605         r->query->z_query->which == Z_Query_type_101)
1606     {
1607         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1608         if (cp)
1609         {
1610             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1611             if (cd)
1612             {
1613                 search_req->query = yaz_copy_Z_Query(search_req->query,
1614                                                      c->odr_out);
1615
1616                 yaz_query_charset_convert_rpnquery(search_req->query->u.type_1,
1617                                                    c->odr_out, cd);
1618                 yaz_iconv_close(cd);
1619             }
1620         }
1621     }
1622     search_req->databaseNames = r->databaseNames;
1623     search_req->num_databaseNames = r->num_databaseNames;
1624
1625     /* get syntax (no need to provide unless piggyback is in effect) */
1626     syntax = c->tasks->u.search.syntax;
1627
1628     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1629     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1630     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1631     if (lslb != -1 && ssub != -1 && mspn != -1)
1632     {
1633         /* So're a Z39.50 expert? Let's hope you don't do sort */
1634         *search_req->largeSetLowerBound = lslb;
1635         *search_req->smallSetUpperBound = ssub;
1636         *search_req->mediumSetPresentNumber = mspn;
1637     }
1638     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1639              && r->piggyback && !r->r_sort_spec && !r->schema)
1640     {
1641         /* Regular piggyback - do it unless we're going to do sort */
1642         *search_req->largeSetLowerBound = 2000000000;
1643         *search_req->smallSetUpperBound = 1;
1644         *search_req->mediumSetPresentNumber =
1645             r->step>0 ? r->step : c->tasks->u.search.count;
1646     }
1647     else
1648     {
1649         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1650         smallSetElementSetName = 0;
1651         mediumSetElementSetName = 0;
1652         syntax = 0;
1653     }
1654     if (smallSetElementSetName && *smallSetElementSetName)
1655     {
1656         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1657             odr_malloc(c->odr_out, sizeof(*esn));
1658
1659         esn->which = Z_ElementSetNames_generic;
1660         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1661         search_req->smallSetElementSetNames = esn;
1662     }
1663     if (mediumSetElementSetName && *mediumSetElementSetName)
1664     {
1665         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1666             odr_malloc(c->odr_out, sizeof(*esn));
1667
1668         esn->which = Z_ElementSetNames_generic;
1669         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1670         search_req->mediumSetElementSetNames = esn;
1671     }
1672     if (syntax)
1673         search_req->preferredRecordSyntax =
1674             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1675
1676     if (!r->setname)
1677     {
1678         if (c->support_named_resultsets)
1679         {
1680             char setname[14];
1681             int ord;
1682             /* find the lowest unused ordinal so that we re-use
1683                result sets on the server. */
1684             for (ord = 1; ; ord++)
1685             {
1686                 ZOOM_resultset rp;
1687                 sprintf(setname, "%d", ord);
1688                 for (rp = c->resultsets; rp; rp = rp->next)
1689                     if (rp->setname && !strcmp(rp->setname, setname))
1690                         break;
1691                 if (!rp)
1692                     break;
1693             }
1694             r->setname = xstrdup(setname);
1695             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1696                     "set %s", c, r->setname);
1697         }
1698         else
1699         {
1700             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1701                     "default set", c);
1702             r->setname = xstrdup("default");
1703         }
1704         ZOOM_options_set(r->options, "setname", r->setname);
1705     }
1706     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1707     return send_APDU(c, apdu);
1708 }
1709
1710 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1711 {
1712     char oid_name_buf[OID_STR_MAX];
1713     const char *oid_name;
1714     char *addinfo = 0;
1715
1716     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1717     switch (r->which)
1718     {
1719     case Z_DefaultDiagFormat_v2Addinfo:
1720         addinfo = r->u.v2Addinfo;
1721         break;
1722     case Z_DefaultDiagFormat_v3Addinfo:
1723         addinfo = r->u.v3Addinfo;
1724         break;
1725     }
1726     xfree(c->addinfo);
1727     c->addinfo = 0;
1728     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1729 }
1730
1731 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1732 {
1733     if (p->which != Z_DiagRec_defaultFormat)
1734         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1735     else
1736         response_default_diag(c, p->u.defaultFormat);
1737 }
1738
1739 ZOOM_API(ZOOM_record)
1740     ZOOM_record_clone(ZOOM_record srec)
1741 {
1742     char *buf;
1743     int size;
1744     ODR odr_enc;
1745     ZOOM_record nrec;
1746
1747     odr_enc = odr_createmem(ODR_ENCODE);
1748     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1749         return 0;
1750     buf = odr_getbuf(odr_enc, &size, 0);
1751
1752     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1753     nrec->odr = odr_createmem(ODR_DECODE);
1754     nrec->wrbuf_marc = 0;
1755     nrec->wrbuf_iconv = 0;
1756     nrec->wrbuf_opac = 0;
1757     odr_setbuf(nrec->odr, buf, size, 0);
1758     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1759
1760     nrec->schema = odr_strdup_null(nrec->odr, srec->schema);
1761     nrec->diag_uri = odr_strdup_null(nrec->odr, srec->diag_uri);
1762     nrec->diag_message = odr_strdup_null(nrec->odr, srec->diag_message);
1763     nrec->diag_details = odr_strdup_null(nrec->odr, srec->diag_details);
1764     nrec->diag_set = odr_strdup_null(nrec->odr, srec->diag_set);
1765     odr_destroy(odr_enc);
1766     return nrec;
1767 }
1768
1769 ZOOM_API(ZOOM_record)
1770     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1771 {
1772     const char *syntax =
1773         ZOOM_options_get(s->options, "preferredRecordSyntax");
1774     const char *elementSetName =
1775         ZOOM_options_get(s->options, "elementSetName");
1776
1777     return record_cache_lookup(s, pos, syntax, elementSetName);
1778 }
1779
1780 ZOOM_API(ZOOM_record)
1781     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1782 {
1783     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1784
1785     if (!rec)
1786     {
1787         /*
1788          * MIKE: I think force_sync should always be zero, but I don't
1789          * want to make this change until I get the go-ahead from
1790          * Adam, in case something depends on the old synchronous
1791          * behaviour.
1792          */
1793         int force_sync = 1;
1794         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1795         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1796         rec = ZOOM_resultset_record_immediate(r, pos);
1797     }
1798     return rec;
1799 }
1800
1801 ZOOM_API(void)
1802     ZOOM_record_destroy(ZOOM_record rec)
1803 {
1804     if (!rec)
1805         return;
1806     if (rec->wrbuf_marc)
1807         wrbuf_destroy(rec->wrbuf_marc);
1808     if (rec->wrbuf_iconv)
1809         wrbuf_destroy(rec->wrbuf_iconv);
1810     if (rec->wrbuf_opac)
1811         wrbuf_destroy(rec->wrbuf_opac);
1812     odr_destroy(rec->odr);
1813     xfree(rec);
1814 }
1815
1816 static const char *marc_iconv_return(ZOOM_record rec, int marc_type,
1817                                      int *len,
1818                                      const char *buf, int sz,
1819                                      const char *record_charset)
1820 {
1821     char to[40];
1822     char from[40];
1823     yaz_iconv_t cd = 0;
1824     yaz_marc_t mt = yaz_marc_create();
1825
1826     *from = '\0';
1827     strcpy(to, "UTF-8");
1828     if (record_charset && *record_charset)
1829     {
1830         /* Use "from,to" or just "from" */
1831         const char *cp = strchr(record_charset, ',');
1832         int clen = strlen(record_charset);
1833         if (cp && cp[1])
1834         {
1835             strncpy( to, cp+1, sizeof(to)-1);
1836             to[sizeof(to)-1] = '\0';
1837             clen = cp - record_charset;
1838         }
1839         if (clen > sizeof(from)-1)
1840             clen = sizeof(from)-1;
1841
1842         if (clen)
1843             strncpy(from, record_charset, clen);
1844         from[clen] = '\0';
1845     }
1846
1847     if (*from && *to)
1848     {
1849         cd = yaz_iconv_open(to, from);
1850         yaz_marc_iconv(mt, cd);
1851     }
1852
1853     yaz_marc_xml(mt, marc_type);
1854     if (!rec->wrbuf_marc)
1855         rec->wrbuf_marc = wrbuf_alloc();
1856     wrbuf_rewind(rec->wrbuf_marc);
1857     if (yaz_marc_decode_wrbuf(mt, buf, sz, rec->wrbuf_marc) > 0)
1858     {
1859         yaz_marc_destroy(mt);
1860         if (cd)
1861             yaz_iconv_close(cd);
1862         if (len)
1863             *len = wrbuf_len(rec->wrbuf_marc);
1864         return wrbuf_cstr(rec->wrbuf_marc);
1865     }
1866     yaz_marc_destroy(mt);
1867     if (cd)
1868         yaz_iconv_close(cd);
1869     return 0;
1870 }
1871
1872 static const char *record_iconv_return(ZOOM_record rec, int *len,
1873                                        const char *buf, int sz,
1874                                        const char *record_charset)
1875 {
1876     char to[40];
1877     char from[40];
1878     yaz_iconv_t cd = 0;
1879
1880     *from = '\0';
1881     strcpy(to, "UTF-8");
1882
1883     if (record_charset && *record_charset)
1884     {
1885         /* Use "from,to" or just "from" */
1886         const char *cp = strchr(record_charset, ',');
1887         int clen = strlen(record_charset);
1888         if (cp && cp[1])
1889         {
1890             strncpy( to, cp+1, sizeof(to)-1);
1891             to[sizeof(to)-1] = '\0';
1892             clen = cp - record_charset;
1893         }
1894         if (clen > sizeof(from)-1)
1895             clen = sizeof(from)-1;
1896
1897         if (clen)
1898             strncpy(from, record_charset, clen);
1899         from[clen] = '\0';
1900     }
1901
1902     if (*from && *to && (cd = yaz_iconv_open(to, from)))
1903     {
1904         if (!rec->wrbuf_iconv)
1905             rec->wrbuf_iconv = wrbuf_alloc();
1906
1907         wrbuf_rewind(rec->wrbuf_iconv);
1908
1909         wrbuf_iconv_write(rec->wrbuf_iconv, cd, buf, sz);
1910         wrbuf_iconv_reset(rec->wrbuf_iconv, cd);
1911
1912         buf = wrbuf_cstr(rec->wrbuf_iconv);
1913         sz = wrbuf_len(rec->wrbuf_iconv);
1914         yaz_iconv_close(cd);
1915     }
1916     if (len)
1917         *len = sz;
1918     return buf;
1919 }
1920
1921
1922 ZOOM_API(int)
1923     ZOOM_record_error(ZOOM_record rec, const char **cp,
1924                       const char **addinfo, const char **diagset)
1925 {
1926     Z_NamePlusRecord *npr;
1927
1928     if (!rec)
1929         return 0;
1930
1931     npr = rec->npr;
1932     if (rec->diag_uri)
1933     {
1934         if (cp)
1935             *cp = rec->diag_message;
1936         if (addinfo)
1937             *addinfo = rec->diag_details;
1938         if (diagset)
1939             *diagset = rec->diag_set;
1940         return uri_to_code(rec->diag_uri);
1941     }
1942     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
1943     {
1944         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
1945         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
1946         const char *add = 0;
1947
1948         if (diag_rec->which == Z_DiagRec_defaultFormat)
1949         {
1950             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
1951             oid_class oclass;
1952
1953             error = *ddf->condition;
1954             switch (ddf->which)
1955             {
1956             case Z_DefaultDiagFormat_v2Addinfo:
1957                 add = ddf->u.v2Addinfo;
1958                 break;
1959             case Z_DefaultDiagFormat_v3Addinfo:
1960                 add = ddf->u.v3Addinfo;
1961                 break;
1962             }
1963             if (diagset)
1964                 *diagset =
1965                     yaz_oid_to_string(yaz_oid_std(),
1966                                       ddf->diagnosticSetId, &oclass);
1967         }
1968         else
1969         {
1970             if (diagset)
1971                 *diagset = "Bib-1";
1972         }
1973         if (addinfo)
1974             *addinfo = add ? add : "";
1975         if (cp)
1976             *cp = diagbib1_str(error);
1977         return error;
1978     }
1979     return 0;
1980 }
1981
1982 ZOOM_API(const char *)
1983     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
1984 {
1985     char type[40];
1986     char charset[40];
1987     char xpath[512];
1988     const char *cp;
1989     int i;
1990     Z_NamePlusRecord *npr;
1991
1992     if (len)
1993         *len = 0; /* default return */
1994
1995     if (!rec)
1996         return 0;
1997     npr = rec->npr;
1998     if (!npr)
1999         return 0;
2000
2001     cp = type_spec;
2002     for (i = 0; cp[i] && i < sizeof(type)-1; i++)
2003     {
2004         if (cp[i] == ';' || cp[i] == ' ')
2005             break;
2006         type[i] = cp[i];
2007     }
2008     type[i] = '\0';
2009     charset[0] = '\0';
2010     while (type_spec[i] == ';')
2011     {
2012         i++;
2013         while (type_spec[i] == ' ')
2014             i++;
2015         if (!strncmp(type_spec+i, "charset=", 8))
2016         {
2017             int j = 0;
2018             i = i + 8; /* skip charset= */
2019             for (j = 0; type_spec[i]  && j < sizeof(charset)-1; i++, j++)
2020             {
2021                 if (type_spec[i] == ';' || type_spec[i] == ' ')
2022                     break;
2023                 charset[j] = cp[i];
2024             }
2025             charset[j] = '\0';
2026         }
2027         else if (!strncmp(type_spec+i, "xpath=", 6))
2028         {
2029             int j = 0;
2030             i = i + 6;
2031             for (j = 0; type_spec[i] && j < sizeof(xpath)-1; i++, j++)
2032                 xpath[j] = cp[i];
2033             xpath[j] = '\0';
2034         }
2035         while (type_spec[i] == ' ')
2036             i++;
2037     }
2038     if (!strcmp(type, "database"))
2039     {
2040         if (len)
2041             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2042         return npr->databaseName;
2043     }
2044     else if (!strcmp(type, "schema"))
2045     {
2046         if (len)
2047             *len = rec->schema ? strlen(rec->schema) : 0;
2048         return rec->schema;
2049     }
2050     else if (!strcmp(type, "syntax"))
2051     {
2052         const char *desc = 0;
2053         if (npr->which == Z_NamePlusRecord_databaseRecord)
2054         {
2055             Z_External *r = (Z_External *) npr->u.databaseRecord;
2056             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2057         }
2058         if (!desc)
2059             desc = "none";
2060         if (len)
2061             *len = strlen(desc);
2062         return desc;
2063     }
2064     if (npr->which != Z_NamePlusRecord_databaseRecord)
2065         return 0;
2066
2067     /* from now on - we have a database record .. */
2068     if (!strcmp(type, "render"))
2069     {
2070         Z_External *r = (Z_External *) npr->u.databaseRecord;
2071         const Odr_oid *oid = r->direct_reference;
2072
2073         /* render bibliographic record .. */
2074         if (r->which == Z_External_OPAC)
2075         {
2076             r = r->u.opac->bibliographicRecord;
2077             if (!r)
2078                 return 0;
2079             oid = r->direct_reference;
2080         }
2081         if (r->which == Z_External_sutrs)
2082             return record_iconv_return(rec, len,
2083                                        (char*) r->u.sutrs->buf,
2084                                        r->u.sutrs->len,
2085                                        charset);
2086         else if (r->which == Z_External_octet)
2087         {
2088             if (yaz_oid_is_iso2709(oid))
2089             {
2090                 const char *ret_buf = marc_iconv_return(
2091                     rec, YAZ_MARC_LINE, len,
2092                     (const char *) r->u.octet_aligned->buf,
2093                     r->u.octet_aligned->len,
2094                     charset);
2095                 if (ret_buf)
2096                     return ret_buf;
2097             }
2098             return record_iconv_return(rec, len,
2099                                        (const char *) r->u.octet_aligned->buf,
2100                                        r->u.octet_aligned->len,
2101                                        charset);
2102         }
2103         else if (r->which == Z_External_grs1)
2104         {
2105             if (!rec->wrbuf_marc)
2106                 rec->wrbuf_marc = wrbuf_alloc();
2107             wrbuf_rewind(rec->wrbuf_marc);
2108             yaz_display_grs1(rec->wrbuf_marc, r->u.grs1, 0);
2109             return record_iconv_return(rec, len,
2110                                        wrbuf_buf(rec->wrbuf_marc),
2111                                        wrbuf_len(rec->wrbuf_marc),
2112                                        charset);
2113         }
2114         return 0;
2115     }
2116     else if (!strcmp(type, "xml"))
2117     {
2118         Z_External *r = (Z_External *) npr->u.databaseRecord;
2119         const Odr_oid *oid = r->direct_reference;
2120
2121         /* render bibliographic record .. */
2122         if (r->which == Z_External_OPAC)
2123         {
2124             r = r->u.opac->bibliographicRecord;
2125             if (!r)
2126                 return 0;
2127             oid = r->direct_reference;
2128         }
2129
2130         if (r->which == Z_External_sutrs)
2131             return record_iconv_return(rec, len,
2132                                        (const char *) r->u.sutrs->buf,
2133                                        r->u.sutrs->len,
2134                                        charset);
2135         else if (r->which == Z_External_octet)
2136         {
2137             int marc_decode_type = YAZ_MARC_MARCXML;
2138             if (yaz_oid_is_iso2709(oid))
2139             {
2140                 const char *ret_buf = marc_iconv_return(
2141                     rec, marc_decode_type, len,
2142                     (const char *) r->u.octet_aligned->buf,
2143                     r->u.octet_aligned->len,
2144                     charset);
2145                 if (ret_buf)
2146                     return ret_buf;
2147             }
2148             return record_iconv_return(rec, len,
2149                                        (const char *) r->u.octet_aligned->buf,
2150                                        r->u.octet_aligned->len,
2151                                        charset);
2152         }
2153         else if (r->which == Z_External_grs1)
2154         {
2155             if (len) *len = 5;
2156             return "GRS-1";
2157         }
2158         return 0;
2159     }
2160     else if (!strcmp(type, "raw"))
2161     {
2162         Z_External *r = (Z_External *) npr->u.databaseRecord;
2163
2164         if (r->which == Z_External_sutrs)
2165         {
2166             if (len) *len = r->u.sutrs->len;
2167             return (const char *) r->u.sutrs->buf;
2168         }
2169         else if (r->which == Z_External_octet)
2170         {
2171             if (len) *len = r->u.octet_aligned->len;
2172             return (const char *) r->u.octet_aligned->buf;
2173         }
2174         else /* grs-1, explain, OPAC, ... */
2175         {
2176             if (len) *len = -1;
2177             return (const char *) npr->u.databaseRecord;
2178         }
2179         return 0;
2180     }
2181     else if (!strcmp (type, "ext"))
2182     {
2183         if (len) *len = -1;
2184         return (const char *) npr->u.databaseRecord;
2185     }
2186     else if (!strcmp (type, "opac"))
2187
2188     {
2189         Z_External *r = (Z_External *) npr->u.databaseRecord;
2190         if (r->which == Z_External_OPAC)
2191         {
2192             if (!rec->wrbuf_opac)
2193                 rec->wrbuf_opac = wrbuf_alloc();
2194             wrbuf_rewind(rec->wrbuf_opac);
2195             yaz_display_OPAC(rec->wrbuf_opac, r->u.opac, 0);
2196             return record_iconv_return(rec, len,
2197                                        wrbuf_buf(rec->wrbuf_opac),
2198                                        wrbuf_len(rec->wrbuf_opac),
2199                                        charset);
2200         }
2201     }
2202     return 0;
2203 }
2204
2205 static int strcmp_null(const char *v1, const char *v2)
2206 {
2207     if (!v1 && !v2)
2208         return 0;
2209     if (!v1 || !v2)
2210         return -1;
2211     return strcmp(v1, v2);
2212 }
2213
2214 static size_t record_hash(int pos)
2215 {
2216     if (pos < 0)
2217         pos = 0;
2218     return pos % RECORD_HASH_SIZE;
2219 }
2220
2221 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2222                              int pos,
2223                              const char *syntax, const char *elementSetName,
2224                              const char *schema,
2225                              Z_SRW_diagnostic *diag)
2226 {
2227     ZOOM_record_cache rc = 0;
2228
2229     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2230     ZOOM_connection_put_event(r->connection, event);
2231
2232     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2233     {
2234         if (pos == rc->pos
2235             && strcmp_null(r->schema, rc->schema) == 0
2236             && strcmp_null(elementSetName,rc->elementSetName) == 0
2237             && strcmp_null(syntax, rc->syntax) == 0)
2238             break;
2239     }
2240     if (!rc)
2241     {
2242         rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2243         rc->rec.odr = 0;
2244         rc->rec.wrbuf_marc = 0;
2245         rc->rec.wrbuf_iconv = 0;
2246         rc->rec.wrbuf_opac = 0;
2247         rc->elementSetName = odr_strdup_null(r->odr, elementSetName);
2248
2249         rc->syntax = odr_strdup_null(r->odr, syntax);
2250
2251         rc->schema = odr_strdup_null(r->odr, r->schema);
2252
2253         rc->pos = pos;
2254         rc->next = r->record_hash[record_hash(pos)];
2255         r->record_hash[record_hash(pos)] = rc;
2256     }
2257     rc->rec.npr = npr;
2258     rc->rec.schema = odr_strdup_null(r->odr, schema);
2259     rc->rec.diag_set = 0;
2260     rc->rec.diag_uri = 0;
2261     rc->rec.diag_message = 0;
2262     rc->rec.diag_details = 0;
2263     if (diag)
2264     {
2265         if (diag->uri)
2266         {
2267             char *cp;
2268             rc->rec.diag_set = odr_strdup(r->odr, diag->uri);
2269             if ((cp = strrchr(rc->rec.diag_set, '/')))
2270                 *cp = '\0';
2271             rc->rec.diag_uri = odr_strdup(r->odr, diag->uri);
2272         }
2273         rc->rec.diag_message = odr_strdup_null(r->odr, diag->message);
2274         rc->rec.diag_details = odr_strdup_null(r->odr, diag->details);
2275     }
2276 }
2277
2278 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2279                                        const char *syntax,
2280                                        const char *elementSetName)
2281 {
2282     ZOOM_record_cache rc;
2283
2284     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2285     {
2286         if (pos == rc->pos)
2287         {
2288             if (strcmp_null(r->schema, rc->schema))
2289                 continue;
2290             if (strcmp_null(elementSetName,rc->elementSetName))
2291                 continue;
2292             if (strcmp_null(syntax, rc->syntax))
2293                 continue;
2294             return &rc->rec;
2295         }
2296     }
2297     return 0;
2298 }
2299
2300 static void handle_records(ZOOM_connection c, Z_Records *sr,
2301                            int present_phase)
2302 {
2303     ZOOM_resultset resultset;
2304     int *start, *count;
2305     const char *syntax = 0, *elementSetName = 0;
2306
2307     if (!c->tasks)
2308         return ;
2309     switch (c->tasks->which)
2310     {
2311     case ZOOM_TASK_SEARCH:
2312         resultset = c->tasks->u.search.resultset;
2313         start = &c->tasks->u.search.start;
2314         count = &c->tasks->u.search.count;
2315         syntax = c->tasks->u.search.syntax;
2316         elementSetName = c->tasks->u.search.elementSetName;
2317         break;
2318     case ZOOM_TASK_RETRIEVE:
2319         resultset = c->tasks->u.retrieve.resultset;
2320         start = &c->tasks->u.retrieve.start;
2321         count = &c->tasks->u.retrieve.count;
2322         syntax = c->tasks->u.retrieve.syntax;
2323         elementSetName = c->tasks->u.retrieve.elementSetName;
2324         break;
2325     default:
2326         return;
2327     }
2328     if (sr && sr->which == Z_Records_NSD)
2329         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2330     else if (sr && sr->which == Z_Records_multipleNSD)
2331     {
2332         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2333             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2334         else
2335             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2336     }
2337     else
2338     {
2339         if (*count + *start > resultset->size)
2340             *count = resultset->size - *start;
2341         if (*count < 0)
2342             *count = 0;
2343         if (sr && sr->which == Z_Records_DBOSD)
2344         {
2345             int i;
2346             NMEM nmem = odr_extract_mem(c->odr_in);
2347             Z_NamePlusRecordList *p =
2348                 sr->u.databaseOrSurDiagnostics;
2349             for (i = 0; i<p->num_records; i++)
2350             {
2351                 record_cache_add(resultset, p->records[i], i + *start,
2352                                  syntax, elementSetName,
2353                                  elementSetName, 0);
2354             }
2355             *count -= i;
2356             if (*count < 0)
2357                 *count = 0;
2358             *start += i;
2359             yaz_log(log_details,
2360                     "handle_records resultset=%p start=%d count=%d",
2361                     resultset, *start, *count);
2362
2363             /* transfer our response to search_nmem .. we need it later */
2364             nmem_transfer(odr_getmem(resultset->odr), nmem);
2365             nmem_destroy(nmem);
2366             if (present_phase && p->num_records == 0)
2367             {
2368                 /* present response and we didn't get any records! */
2369                 Z_NamePlusRecord *myrec =
2370                     zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2371                 record_cache_add(resultset, myrec, *start,
2372                                  syntax, elementSetName, 0, 0);
2373             }
2374         }
2375         else if (present_phase)
2376         {
2377             /* present response and we didn't get any records! */
2378             Z_NamePlusRecord *myrec =
2379                 zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2380             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2381                              0, 0);
2382         }
2383     }
2384 }
2385
2386 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2387 {
2388     handle_records(c, pr->records, 1);
2389 }
2390
2391 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2392                                        Z_Term *term)
2393 {
2394     switch (term->which)
2395     {
2396     case Z_Term_general:
2397         ZOOM_options_setl(opt, name,
2398                           (const char *)(term->u.general->buf),
2399                           term->u.general->len);
2400         break;
2401     case Z_Term_characterString:
2402         ZOOM_options_set(opt, name, term->u.characterString);
2403         break;
2404     case Z_Term_numeric:
2405         ZOOM_options_set_int(opt, name, *term->u.numeric);
2406         break;
2407     }
2408 }
2409
2410 static void handle_queryExpression(ZOOM_options opt, const char *name,
2411                                    Z_QueryExpression *exp)
2412 {
2413     char opt_name[80];
2414
2415     switch (exp->which)
2416     {
2417     case Z_QueryExpression_term:
2418         if (exp->u.term && exp->u.term->queryTerm)
2419         {
2420             sprintf(opt_name, "%s.term", name);
2421             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2422         }
2423         break;
2424     case Z_QueryExpression_query:
2425         break;
2426     }
2427 }
2428
2429 static void handle_searchResult(ZOOM_connection c, ZOOM_resultset resultset,
2430                                 Z_OtherInformation *o)
2431 {
2432     int i;
2433     for (i = 0; o && i < o->num_elements; i++)
2434     {
2435         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2436         {
2437             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2438
2439             if (ext->which == Z_External_searchResult1)
2440             {
2441                 int j;
2442                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2443
2444                 if (sr->num)
2445                     ZOOM_options_set_int(
2446                         resultset->options, "searchresult.size", sr->num);
2447
2448                 for (j = 0; j < sr->num; j++)
2449                 {
2450                     Z_SearchInfoReport_s *ent =
2451                         ext->u.searchResult1->elements[j];
2452                     char pref[80];
2453
2454                     sprintf(pref, "searchresult.%d", j);
2455
2456                     if (ent->subqueryId)
2457                     {
2458                         char opt_name[80];
2459                         sprintf(opt_name, "%s.id", pref);
2460                         ZOOM_options_set(resultset->options, opt_name,
2461                                          ent->subqueryId);
2462                     }
2463                     if (ent->subqueryExpression)
2464                     {
2465                         char opt_name[80];
2466                         sprintf(opt_name, "%s.subquery", pref);
2467                         handle_queryExpression(resultset->options, opt_name,
2468                                                ent->subqueryExpression);
2469                     }
2470                     if (ent->subqueryInterpretation)
2471                     {
2472                         char opt_name[80];
2473                         sprintf(opt_name, "%s.interpretation", pref);
2474                         handle_queryExpression(resultset->options, opt_name,
2475                                                ent->subqueryInterpretation);
2476                     }
2477                     if (ent->subqueryRecommendation)
2478                     {
2479                         char opt_name[80];
2480                         sprintf(opt_name, "%s.recommendation", pref);
2481                         handle_queryExpression(resultset->options, opt_name,
2482                                                ent->subqueryRecommendation);
2483                     }
2484                     if (ent->subqueryCount)
2485                     {
2486                         char opt_name[80];
2487                         sprintf(opt_name, "%s.count", pref);
2488                         ZOOM_options_set_int(resultset->options, opt_name,
2489                                              *ent->subqueryCount);
2490                     }
2491                 }
2492             }
2493         }
2494     }
2495 }
2496
2497 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2498 {
2499     ZOOM_resultset resultset;
2500     ZOOM_Event event;
2501
2502     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2503         return ;
2504
2505     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2506     ZOOM_connection_put_event(c, event);
2507
2508     resultset = c->tasks->u.search.resultset;
2509
2510     if (sr->resultSetStatus)
2511     {
2512         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2513                              *sr->resultSetStatus);
2514     }
2515     if (sr->presentStatus)
2516     {
2517         ZOOM_options_set_int(resultset->options, "presentStatus",
2518                              *sr->presentStatus);
2519     }
2520     handle_searchResult(c, resultset, sr->additionalSearchInfo);
2521
2522     resultset->size = *sr->resultCount;
2523     handle_records(c, sr->records, 0);
2524 }
2525
2526 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2527 {
2528     if (res->diagnostics && res->num_diagnostics > 0)
2529         response_diag(c, res->diagnostics[0]);
2530 }
2531
2532 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2533 {
2534     NMEM nmem = odr_extract_mem(c->odr_in);
2535     ZOOM_scanset scan;
2536
2537     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2538         return 0;
2539     scan = c->tasks->u.scan.scan;
2540
2541     if (res->entries && res->entries->nonsurrogateDiagnostics)
2542         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2543     scan->scan_response = res;
2544     scan->srw_scan_response = 0;
2545     nmem_transfer(odr_getmem(scan->odr), nmem);
2546     if (res->stepSize)
2547         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2548     if (res->positionOfTerm)
2549         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2550     if (res->scanStatus)
2551         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2552     if (res->numberOfEntriesReturned)
2553         ZOOM_options_set_int(scan->options, "number",
2554                              *res->numberOfEntriesReturned);
2555     nmem_destroy(nmem);
2556     return 1;
2557 }
2558
2559 static zoom_ret send_sort(ZOOM_connection c,
2560                           ZOOM_resultset resultset)
2561 {
2562     if (c->error)
2563         resultset->r_sort_spec = 0;
2564     if (resultset->r_sort_spec)
2565     {
2566         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2567         Z_SortRequest *req = apdu->u.sortRequest;
2568
2569         req->num_inputResultSetNames = 1;
2570         req->inputResultSetNames = (Z_InternationalString **)
2571             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2572         req->inputResultSetNames[0] =
2573             odr_strdup(c->odr_out, resultset->setname);
2574         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2575         req->sortSequence = resultset->r_sort_spec;
2576         resultset->r_sort_spec = 0;
2577         return send_APDU(c, apdu);
2578     }
2579     return zoom_complete;
2580 }
2581
2582 static zoom_ret send_present(ZOOM_connection c)
2583 {
2584     Z_APDU *apdu = 0;
2585     Z_PresentRequest *req = 0;
2586     int i = 0;
2587     const char *syntax = 0;
2588     const char *elementSetName = 0;
2589     ZOOM_resultset  resultset;
2590     int *start, *count;
2591
2592     if (!c->tasks)
2593     {
2594         yaz_log(log_details, "%p send_present no tasks", c);
2595         return zoom_complete;
2596     }
2597
2598     switch (c->tasks->which)
2599     {
2600     case ZOOM_TASK_SEARCH:
2601         resultset = c->tasks->u.search.resultset;
2602         start = &c->tasks->u.search.start;
2603         count = &c->tasks->u.search.count;
2604         syntax = c->tasks->u.search.syntax;
2605         elementSetName = c->tasks->u.search.elementSetName;
2606         break;
2607     case ZOOM_TASK_RETRIEVE:
2608         resultset = c->tasks->u.retrieve.resultset;
2609         start = &c->tasks->u.retrieve.start;
2610         count = &c->tasks->u.retrieve.count;
2611         syntax = c->tasks->u.retrieve.syntax;
2612         elementSetName = c->tasks->u.retrieve.elementSetName;
2613         break;
2614     default:
2615         return zoom_complete;
2616     }
2617     yaz_log(log_details, "%p send_present start=%d count=%d",
2618             c, *start, *count);
2619
2620     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2621     {
2622         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2623                        "", 0);
2624     }
2625     if (c->error)                  /* don't continue on error */
2626         return zoom_complete;
2627     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2628             resultset, *start, *count);
2629
2630     for (i = 0; i < *count; i++)
2631     {
2632         ZOOM_record rec =
2633             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2634         if (!rec)
2635             break;
2636         else
2637         {
2638             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2639             ZOOM_connection_put_event(c, event);
2640         }
2641     }
2642     *start += i;
2643     *count -= i;
2644
2645     if (*count == 0)
2646     {
2647         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2648         return zoom_complete;
2649     }
2650
2651     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2652     req = apdu->u.presentRequest;
2653
2654     if (i)
2655         yaz_log(log_details, "%p send_present skip=%d", c, i);
2656
2657     *req->resultSetStartPoint = *start + 1;
2658
2659     if (resultset->step > 0 && resultset->step < *count)
2660         *req->numberOfRecordsRequested = resultset->step;
2661     else
2662         *req->numberOfRecordsRequested = *count;
2663
2664     if (*req->numberOfRecordsRequested + *start > resultset->size)
2665         *req->numberOfRecordsRequested = resultset->size - *start;
2666     assert(*req->numberOfRecordsRequested > 0);
2667
2668     if (syntax && *syntax)
2669         req->preferredRecordSyntax =
2670             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2671
2672     if (resultset->schema && *resultset->schema)
2673     {
2674         Z_RecordComposition *compo = (Z_RecordComposition *)
2675             odr_malloc(c->odr_out, sizeof(*compo));
2676
2677         req->recordComposition = compo;
2678         compo->which = Z_RecordComp_complex;
2679         compo->u.complex = (Z_CompSpec *)
2680             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2681         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2682             odr_malloc(c->odr_out, sizeof(bool_t));
2683         *compo->u.complex->selectAlternativeSyntax = 0;
2684
2685         compo->u.complex->generic = (Z_Specification *)
2686             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2687
2688         compo->u.complex->generic->which = Z_Schema_oid;
2689         compo->u.complex->generic->schema.oid = (Odr_oid *)
2690             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2691
2692         if (!compo->u.complex->generic->schema.oid)
2693         {
2694             /* OID wasn't a schema! Try record syntax instead. */
2695
2696             compo->u.complex->generic->schema.oid = (Odr_oid *)
2697                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2698         }
2699         if (elementSetName && *elementSetName)
2700         {
2701             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2702                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2703             compo->u.complex->generic->elementSpec->which =
2704                 Z_ElementSpec_elementSetName;
2705             compo->u.complex->generic->elementSpec->u.elementSetName =
2706                 odr_strdup(c->odr_out, elementSetName);
2707         }
2708         else
2709             compo->u.complex->generic->elementSpec = 0;
2710         compo->u.complex->num_dbSpecific = 0;
2711         compo->u.complex->dbSpecific = 0;
2712         compo->u.complex->num_recordSyntax = 0;
2713         compo->u.complex->recordSyntax = 0;
2714     }
2715     else if (elementSetName && *elementSetName)
2716     {
2717         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2718             odr_malloc(c->odr_out, sizeof(*esn));
2719         Z_RecordComposition *compo = (Z_RecordComposition *)
2720             odr_malloc(c->odr_out, sizeof(*compo));
2721
2722         esn->which = Z_ElementSetNames_generic;
2723         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2724         compo->which = Z_RecordComp_simple;
2725         compo->u.simple = esn;
2726         req->recordComposition = compo;
2727     }
2728     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2729     return send_APDU(c, apdu);
2730 }
2731
2732 ZOOM_API(ZOOM_scanset)
2733     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2734 {
2735     ZOOM_scanset s;
2736     ZOOM_query q = ZOOM_query_create();
2737
2738     ZOOM_query_prefix(q, start);
2739
2740     s = ZOOM_connection_scan1(c, q);
2741     ZOOM_query_destroy(q);
2742     return s;
2743
2744 }
2745
2746 ZOOM_API(ZOOM_scanset)
2747     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2748 {
2749     ZOOM_scanset scan = 0;
2750
2751     if (!q->z_query)
2752         return 0;
2753     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2754     scan->connection = c;
2755     scan->odr = odr_createmem(ODR_DECODE);
2756     scan->options = ZOOM_options_create_with_parent(c->options);
2757     scan->refcount = 1;
2758     scan->scan_response = 0;
2759     scan->srw_scan_response = 0;
2760
2761     scan->query = q;
2762     (q->refcount)++;
2763     scan->databaseNames = set_DatabaseNames(c, c->options,
2764                                             &scan->num_databaseNames,
2765                                             scan->odr);
2766
2767     if (1)
2768     {
2769         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
2770         task->u.scan.scan = scan;
2771
2772         (scan->refcount)++;
2773         if (!c->async)
2774         {
2775             while (ZOOM_event(1, &c))
2776                 ;
2777         }
2778     }
2779     return scan;
2780 }
2781
2782 ZOOM_API(void)
2783     ZOOM_scanset_destroy(ZOOM_scanset scan)
2784 {
2785     if (!scan)
2786         return;
2787     (scan->refcount)--;
2788     if (scan->refcount == 0)
2789     {
2790         ZOOM_query_destroy(scan->query);
2791
2792         odr_destroy(scan->odr);
2793
2794         ZOOM_options_destroy(scan->options);
2795         xfree(scan);
2796     }
2797 }
2798
2799 static zoom_ret send_package(ZOOM_connection c)
2800 {
2801     ZOOM_Event event;
2802
2803     yaz_log(log_details, "%p send_package", c);
2804     if (!c->tasks)
2805         return zoom_complete;
2806     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
2807
2808     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
2809     ZOOM_connection_put_event(c, event);
2810
2811     c->buf_out = c->tasks->u.package->buf_out;
2812     c->len_out = c->tasks->u.package->len_out;
2813
2814     return do_write(c);
2815 }
2816
2817 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
2818 {
2819     ZOOM_scanset scan;
2820     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
2821     Z_ScanRequest *req = apdu->u.scanRequest;
2822
2823     yaz_log(log_details, "%p send_scan", c);
2824     if (!c->tasks)
2825         return zoom_complete;
2826     assert (c->tasks->which == ZOOM_TASK_SCAN);
2827     scan = c->tasks->u.scan.scan;
2828
2829     /* Z39.50 scan can only carry RPN */
2830     if (scan->query->z_query->which == Z_Query_type_1 ||
2831         scan->query->z_query->which == Z_Query_type_101)
2832     {
2833         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
2834         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
2835         if (cp)
2836         {
2837             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
2838             if (cd)
2839             {
2840                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
2841
2842                 yaz_query_charset_convert_rpnquery(
2843                     rpn, c->odr_out, cd);
2844                 yaz_iconv_close(cd);
2845             }
2846         }
2847         req->attributeSet = rpn->attributeSetId;
2848         if (!req->attributeSet)
2849             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
2850         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
2851             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
2852         {
2853             req->termListAndStartPoint =
2854                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
2855         }
2856         else
2857         {
2858             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
2859             return zoom_complete;
2860         }
2861     }
2862     else
2863     {
2864         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2865         return zoom_complete;
2866     }
2867
2868     *req->numberOfTermsRequested =
2869         ZOOM_options_get_int(scan->options, "number", 10);
2870
2871     req->preferredPositionInResponse =
2872         odr_intdup(c->odr_out,
2873                    ZOOM_options_get_int(scan->options, "position", 1));
2874
2875     req->stepSize =
2876         odr_intdup(c->odr_out,
2877                    ZOOM_options_get_int(scan->options, "stepSize", 0));
2878
2879     req->databaseNames = scan->databaseNames;
2880     req->num_databaseNames = scan->num_databaseNames;
2881
2882     return send_APDU(c, apdu);
2883 }
2884
2885 #if YAZ_HAVE_XML2
2886 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2887 {
2888     ZOOM_scanset scan;
2889     Z_SRW_PDU *sr = 0;
2890     const char *option_val = 0;
2891
2892     if (!c->tasks)
2893         return zoom_complete;
2894     assert (c->tasks->which == ZOOM_TASK_SCAN);
2895     scan = c->tasks->u.scan.scan;
2896
2897     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
2898
2899     /* SRU scan can only carry CQL and PQF */
2900     if (scan->query->z_query->which == Z_Query_type_104)
2901     {
2902         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
2903         sr->u.scan_request->scanClause.cql = scan->query->query_string;
2904     }
2905     else if (scan->query->z_query->which == Z_Query_type_1
2906              || scan->query->z_query->which == Z_Query_type_101)
2907     {
2908         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
2909         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
2910     }
2911     else
2912     {
2913         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2914         return zoom_complete;
2915     }
2916
2917     sr->u.scan_request->maximumTerms = odr_intdup(
2918         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
2919
2920     sr->u.scan_request->responsePosition = odr_intdup(
2921         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
2922
2923     option_val = ZOOM_options_get(scan->options, "extraArgs");
2924     yaz_encode_sru_extra(sr, c->odr_out, option_val);
2925     return send_srw(c, sr);
2926 }
2927 #else
2928 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2929 {
2930     return zoom_complete;
2931 }
2932 #endif
2933
2934
2935 ZOOM_API(size_t)
2936     ZOOM_scanset_size(ZOOM_scanset scan)
2937 {
2938     if (!scan)
2939         return 0;
2940
2941     if (scan->scan_response && scan->scan_response->entries)
2942         return scan->scan_response->entries->num_entries;
2943     else if (scan->srw_scan_response)
2944         return scan->srw_scan_response->num_terms;
2945     return 0;
2946 }
2947
2948 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
2949                                 int *occ,
2950                                 const char **value_term, size_t *value_len,
2951                                 const char **disp_term, size_t *disp_len)
2952 {
2953     size_t noent = ZOOM_scanset_size(scan);
2954
2955     *value_term = 0;
2956     *value_len = 0;
2957
2958     *disp_term = 0;
2959     *disp_len = 0;
2960
2961     *occ = 0;
2962     if (pos >= noent || pos < 0)
2963         return;
2964     if (scan->scan_response)
2965     {
2966         Z_ScanResponse *res = scan->scan_response;
2967         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
2968         {
2969             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
2970
2971             *value_term = (const char *) t->term->u.general->buf;
2972             *value_len = t->term->u.general->len;
2973             if (t->displayTerm)
2974             {
2975                 *disp_term = t->displayTerm;
2976                 *disp_len = strlen(*disp_term);
2977             }
2978             else if (t->term->which == Z_Term_general)
2979             {
2980                 *disp_term = (const char *) t->term->u.general->buf;
2981                 *disp_len = t->term->u.general->len;
2982             }
2983             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
2984         }
2985     }
2986     if (scan->srw_scan_response)
2987     {
2988         Z_SRW_scanResponse *res = scan->srw_scan_response;
2989         Z_SRW_scanTerm *t = res->terms + pos;
2990         if (t)
2991         {
2992             *value_term = t->value;
2993             *value_len = strlen(*value_term);
2994
2995             if (t->displayTerm)
2996                 *disp_term = t->displayTerm;
2997             else
2998                 *disp_term = t->value;
2999             *disp_len = strlen(*disp_term);
3000             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
3001         }
3002     }
3003 }
3004
3005 ZOOM_API(const char *)
3006     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
3007                       int *occ, int *len)
3008 {
3009     const char *value_term = 0;
3010     size_t value_len = 0;
3011     const char *disp_term = 0;
3012     size_t disp_len = 0;
3013
3014     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3015                         &disp_term, &disp_len);
3016
3017     *len = value_len;
3018     return value_term;
3019 }
3020
3021 ZOOM_API(const char *)
3022     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
3023                               int *occ, int *len)
3024 {
3025     const char *value_term = 0;
3026     size_t value_len = 0;
3027     const char *disp_term = 0;
3028     size_t disp_len = 0;
3029
3030     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3031                         &disp_term, &disp_len);
3032
3033     *len = disp_len;
3034     return disp_term;
3035 }
3036
3037 ZOOM_API(const char *)
3038     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3039 {
3040     return ZOOM_options_get(scan->options, key);
3041 }
3042
3043 ZOOM_API(void)
3044     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3045                             const char *val)
3046 {
3047     ZOOM_options_set(scan->options, key, val);
3048 }
3049
3050 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3051 {
3052     const char *str;
3053     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3054     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3055
3056     str = ZOOM_options_get(p->options, "package-name");
3057     if (str && *str)
3058         req->packageName = odr_strdup(p->odr_out, str);
3059
3060     str = ZOOM_options_get(p->options, "user-id");
3061     if (str)
3062         req->userId = odr_strdup_null(p->odr_out, str);
3063
3064     req->packageType = odr_oiddup(p->odr_out, oid);
3065
3066     str = ZOOM_options_get(p->options, "function");
3067     if (str)
3068     {
3069         if (!strcmp (str, "create"))
3070             *req->function = Z_ExtendedServicesRequest_create;
3071         if (!strcmp (str, "delete"))
3072             *req->function = Z_ExtendedServicesRequest_delete;
3073         if (!strcmp (str, "modify"))
3074             *req->function = Z_ExtendedServicesRequest_modify;
3075     }
3076
3077     str = ZOOM_options_get(p->options, "waitAction");
3078     if (str)
3079     {
3080         if (!strcmp (str, "wait"))
3081             *req->waitAction = Z_ExtendedServicesRequest_wait;
3082         if (!strcmp (str, "waitIfPossible"))
3083             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3084         if (!strcmp (str, "dontWait"))
3085             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3086         if (!strcmp (str, "dontReturnPackage"))
3087             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3088     }
3089     return apdu;
3090 }
3091
3092 static const char *ill_array_lookup(void *clientData, const char *idx)
3093 {
3094     ZOOM_package p = (ZOOM_package) clientData;
3095     return ZOOM_options_get(p->options, idx+4);
3096 }
3097
3098 static Z_External *encode_ill_request(ZOOM_package p)
3099 {
3100     ODR out = p->odr_out;
3101     ILL_Request *req;
3102     Z_External *r = 0;
3103     struct ill_get_ctl ctl;
3104
3105     ctl.odr = p->odr_out;
3106     ctl.clientData = p;
3107     ctl.f = ill_array_lookup;
3108
3109     req = ill_get_ILLRequest(&ctl, "ill", 0);
3110
3111     if (!ill_Request(out, &req, 0, 0))
3112     {
3113         int ill_request_size;
3114         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3115         if (ill_request_buf)
3116             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3117         return 0;
3118     }
3119     else
3120     {
3121         int illRequest_size = 0;
3122         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3123
3124         r = (Z_External *) odr_malloc(out, sizeof(*r));
3125         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3126         r->indirect_reference = 0;
3127         r->descriptor = 0;
3128         r->which = Z_External_single;
3129
3130         r->u.single_ASN1_type =
3131             odr_create_Odr_oct(out,
3132                                (unsigned char *)illRequest_buf,
3133                                illRequest_size);
3134     }
3135     return r;
3136 }
3137
3138 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3139 {
3140     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3141     const char *str;
3142     int len;
3143
3144     req->which = Z_IOItemOrder_esRequest;
3145     req->u.esRequest = (Z_IORequest *)
3146         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3147
3148     /* to keep part ... */
3149     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3150         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3151     req->u.esRequest->toKeep->supplDescription = 0;
3152     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3153         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3154
3155     str = ZOOM_options_get(p->options, "contact-name");
3156     req->u.esRequest->toKeep->contact->name =
3157         odr_strdup_null(p->odr_out, str);
3158
3159     str = ZOOM_options_get(p->options, "contact-phone");
3160     req->u.esRequest->toKeep->contact->phone =
3161         odr_strdup_null(p->odr_out, str);
3162
3163     str = ZOOM_options_get(p->options, "contact-email");
3164     req->u.esRequest->toKeep->contact->email =
3165         odr_strdup_null(p->odr_out, str);
3166
3167     req->u.esRequest->toKeep->addlBilling = 0;
3168
3169     /* not to keep part ... */
3170     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3171         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3172
3173     str = ZOOM_options_get(p->options, "itemorder-setname");
3174     if (!str)
3175         str = "default";
3176
3177     if (!*str)
3178         req->u.esRequest->notToKeep->resultSetItem = 0;
3179     else
3180     {
3181         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3182             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3183
3184         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3185             odr_strdup(p->odr_out, str);
3186         req->u.esRequest->notToKeep->resultSetItem->item =
3187             (int *) odr_malloc(p->odr_out, sizeof(int));
3188
3189         str = ZOOM_options_get(p->options, "itemorder-item");
3190         *req->u.esRequest->notToKeep->resultSetItem->item =
3191             (str ? atoi(str) : 1);
3192     }
3193
3194     str = ZOOM_options_getl(p->options, "doc", &len);
3195     if (str)
3196     {
3197         req->u.esRequest->notToKeep->itemRequest =
3198             z_ext_record_xml(p->odr_out, str, len);
3199     }
3200     else
3201         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3202
3203     return req;
3204 }
3205
3206 Z_APDU *create_admin_package(ZOOM_package p, int type,
3207                              Z_ESAdminOriginPartToKeep **toKeepP,
3208                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3209 {
3210     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3211     if (apdu)
3212     {
3213         Z_ESAdminOriginPartToKeep  *toKeep;
3214         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3215         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3216         const char *first_db = "Default";
3217         int num_db;
3218         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3219                                       p->odr_out);
3220         if (num_db > 0)
3221             first_db = db[0];
3222
3223         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3224         r->descriptor = 0;
3225         r->indirect_reference = 0;
3226         r->which = Z_External_ESAdmin;
3227
3228         r->u.adminService = (Z_Admin *)
3229             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3230         r->u.adminService->which = Z_Admin_esRequest;
3231         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3232             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3233
3234         toKeep = r->u.adminService->u.esRequest->toKeep =
3235             (Z_ESAdminOriginPartToKeep *)
3236             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3237         toKeep->which = type;
3238         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3239         toKeep->u.create = odr_nullval();
3240         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3241
3242         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3243             (Z_ESAdminOriginPartNotToKeep *)
3244             odr_malloc(p->odr_out,
3245                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3246         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3247         notToKeep->u.recordsWillFollow = odr_nullval();
3248         if (toKeepP)
3249             *toKeepP = toKeep;
3250         if (notToKeepP)
3251             *notToKeepP = notToKeep;
3252     }
3253     return apdu;
3254 }
3255
3256 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3257 {
3258     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3259     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3260     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3261     int len;
3262     const char *doc = ZOOM_options_getl(p->options, "doc", &len);
3263
3264     if (!doc)
3265     {
3266         doc = "";
3267         len = 0;
3268     }
3269
3270     req->taskSpecificParameters = ext;
3271     ext->direct_reference = req->packageType;
3272     ext->descriptor = 0;
3273     ext->indirect_reference = 0;
3274
3275     ext->which = Z_External_octet;
3276     ext->u.single_ASN1_type =
3277         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc, len);
3278     return apdu;
3279 }
3280
3281 static Z_APDU *create_update_package(ZOOM_package p)
3282 {
3283     Z_APDU *apdu = 0;
3284     const char *first_db = "Default";
3285     int num_db;
3286     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3287     const char *action = ZOOM_options_get(p->options, "action");
3288     int recordIdOpaque_len;
3289     const char *recordIdOpaque = ZOOM_options_getl(p->options, "recordIdOpaque",
3290         &recordIdOpaque_len);
3291     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3292     int record_len;
3293     const char *record_buf = ZOOM_options_getl(p->options, "record",
3294         &record_len);
3295     int recordOpaque_len;
3296     const char *recordOpaque_buf = ZOOM_options_getl(p->options, "recordOpaque",
3297         &recordOpaque_len);
3298     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3299     const char *version = ZOOM_options_get(p->options, "updateVersion");
3300
3301     const char *correlationInfo_note =
3302         ZOOM_options_get(p->options, "correlationInfo.note");
3303     const char *correlationInfo_id =
3304         ZOOM_options_get(p->options, "correlationInfo.id");
3305     int action_no = -1;
3306     Odr_oid *syntax_oid = 0;
3307     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3308
3309     if (!version)
3310         version = "3";
3311     if (!syntax_str)
3312         syntax_str = "xml";
3313     if (!record_buf && !recordOpaque_buf)
3314     {
3315         record_buf = "void";
3316         record_len = 4;
3317         syntax_str = "SUTRS";
3318     }
3319
3320     if (syntax_str)
3321     {
3322         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3323                                            CLASS_RECSYN, syntax_str,
3324                                            p->odr_out);
3325     }
3326     if (!syntax_oid)
3327         return 0;
3328
3329     if (num_db > 0)
3330         first_db = db[0];
3331
3332     switch(*version)
3333     {
3334     case '1':
3335         package_oid = yaz_oid_extserv_database_update_first_version;
3336         /* old update does not support specialUpdate */
3337         if (!action)
3338             action = "recordInsert";
3339         break;
3340     case '2':
3341         if (!action)
3342             action = "specialUpdate";
3343         package_oid = yaz_oid_extserv_database_update_second_version;
3344         break;
3345     case '3':
3346         if (!action)
3347             action = "specialUpdate";
3348         package_oid = yaz_oid_extserv_database_update;
3349         break;
3350     default:
3351         return 0;
3352     }
3353
3354     if (!strcmp(action, "recordInsert"))
3355         action_no = Z_IUOriginPartToKeep_recordInsert;
3356     else if (!strcmp(action, "recordReplace"))
3357         action_no = Z_IUOriginPartToKeep_recordReplace;
3358     else if (!strcmp(action, "recordDelete"))
3359         action_no = Z_IUOriginPartToKeep_recordDelete;
3360     else if (!strcmp(action, "elementUpdate"))
3361         action_no = Z_IUOriginPartToKeep_elementUpdate;
3362     else if (!strcmp(action, "specialUpdate"))
3363         action_no = Z_IUOriginPartToKeep_specialUpdate;
3364     else
3365         return 0;
3366
3367     apdu = create_es_package(p, package_oid);
3368     if (apdu)
3369     {
3370         Z_IUOriginPartToKeep *toKeep;
3371         Z_IUSuppliedRecords *notToKeep;
3372         Z_External *r = (Z_External *)
3373             odr_malloc(p->odr_out, sizeof(*r));
3374         const char *elementSetName =
3375             ZOOM_options_get(p->options, "elementSetName");
3376
3377         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3378
3379         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3380         r->descriptor = 0;
3381         r->which = Z_External_update;
3382         r->indirect_reference = 0;
3383         r->u.update = (Z_IUUpdate *)
3384             odr_malloc(p->odr_out, sizeof(*r->u.update));
3385
3386         r->u.update->which = Z_IUUpdate_esRequest;
3387         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3388             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3389         toKeep = r->u.update->u.esRequest->toKeep =
3390             (Z_IUOriginPartToKeep *)
3391             odr_malloc(p->odr_out, sizeof(*toKeep));
3392
3393         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3394         toKeep->schema = 0;
3395
3396         toKeep->elementSetName = odr_strdup_null(p->odr_out, elementSetName);
3397
3398         toKeep->actionQualifier = 0;
3399         toKeep->action = odr_intdup(p->odr_out, action_no);
3400
3401         notToKeep = r->u.update->u.esRequest->notToKeep =
3402             (Z_IUSuppliedRecords *)
3403             odr_malloc(p->odr_out, sizeof(*notToKeep));
3404         notToKeep->num = 1;
3405         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3406             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3407         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3408             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3409         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3410         if (recordIdOpaque)
3411         {
3412             notToKeep->elements[0]->u.opaque =
3413                 odr_create_Odr_oct(p->odr_out,
3414                                    (const unsigned char *) recordIdOpaque,
3415                                    recordIdOpaque_len);
3416         }
3417         else if (recordIdNumber)
3418         {
3419             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3420
3421             notToKeep->elements[0]->u.number =
3422                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3423         }
3424         else
3425             notToKeep->elements[0]->u.opaque = 0;
3426         notToKeep->elements[0]->supplementalId = 0;
3427         if (correlationInfo_note || correlationInfo_id)
3428         {
3429             Z_IUCorrelationInfo *ci;
3430             ci = notToKeep->elements[0]->correlationInfo =
3431                 (Z_IUCorrelationInfo *) odr_malloc(p->odr_out, sizeof(*ci));
3432             ci->note = odr_strdup_null(p->odr_out, correlationInfo_note);
3433             ci->id = correlationInfo_id ?
3434                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3435         }
3436         else
3437             notToKeep->elements[0]->correlationInfo = 0;
3438         if (recordOpaque_buf)
3439         {
3440             notToKeep->elements[0]->record =
3441                 z_ext_record_oid_any(p->odr_out, syntax_oid,
3442                                  recordOpaque_buf, recordOpaque_len);
3443         }
3444         else
3445         {
3446             notToKeep->elements[0]->record =
3447                 z_ext_record_oid(p->odr_out, syntax_oid,
3448                                  record_buf, record_len);
3449         }
3450     }
3451     if (0 && apdu)
3452     {
3453         ODR print = odr_createmem(ODR_PRINT);
3454
3455         z_APDU(print, &apdu, 0, 0);
3456         odr_destroy(print);
3457     }
3458     return apdu;
3459 }
3460
3461 ZOOM_API(void)
3462     ZOOM_package_send(ZOOM_package p, const char *type)
3463 {
3464     Z_APDU *apdu = 0;
3465     ZOOM_connection c;
3466     if (!p)
3467         return;
3468     c = p->connection;
3469     odr_reset(p->odr_out);
3470     xfree(p->buf_out);
3471     p->buf_out = 0;
3472     if (!strcmp(type, "itemorder"))
3473     {
3474         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3475         if (apdu)
3476         {
3477             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3478
3479             r->direct_reference =
3480                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3481             r->descriptor = 0;
3482             r->which = Z_External_itemOrder;
3483             r->indirect_reference = 0;
3484             r->u.itemOrder = encode_item_order(p);
3485
3486             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3487         }
3488     }
3489     else if (!strcmp(type, "create"))  /* create database */
3490     {
3491         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3492                                     0, 0);
3493     }
3494     else if (!strcmp(type, "drop"))  /* drop database */
3495     {
3496         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3497                                     0, 0);
3498     }
3499     else if (!strcmp(type, "commit"))  /* commit changes */
3500     {
3501         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3502                                     0, 0);
3503     }
3504     else if (!strcmp(type, "update")) /* update record(s) */
3505     {
3506         apdu = create_update_package(p);
3507     }
3508     else if (!strcmp(type, "xmlupdate"))
3509     {
3510         apdu = create_xmlupdate_package(p);
3511     }
3512     if (apdu)
3513     {
3514         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3515         {
3516             char *buf;
3517
3518             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3519             task->u.package = p;
3520             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3521             p->buf_out = (char *) xmalloc(p->len_out);
3522             memcpy(p->buf_out, buf, p->len_out);
3523
3524             (p->refcount)++;
3525             if (!c->async)
3526             {
3527                 while (ZOOM_event(1, &c))
3528                     ;
3529             }
3530         }
3531     }
3532 }
3533
3534 ZOOM_API(ZOOM_package)
3535     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3536 {
3537     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3538
3539     p->connection = c;
3540     p->odr_out = odr_createmem(ODR_ENCODE);
3541     p->options = ZOOM_options_create_with_parent2(options, c->options);
3542     p->refcount = 1;
3543     p->buf_out = 0;
3544     p->len_out = 0;
3545     return p;
3546 }
3547
3548 ZOOM_API(void)
3549     ZOOM_package_destroy(ZOOM_package p)
3550 {
3551     if (!p)
3552         return;
3553     (p->refcount)--;
3554     if (p->refcount == 0)
3555     {
3556         odr_destroy(p->odr_out);
3557         xfree(p->buf_out);
3558
3559         ZOOM_options_destroy(p->options);
3560         xfree(p);
3561     }
3562 }
3563
3564 ZOOM_API(const char *)
3565     ZOOM_package_option_get(ZOOM_package p, const char *key)
3566 {
3567     return ZOOM_options_get(p->options, key);
3568 }
3569
3570 ZOOM_API(const char *)
3571     ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
3572 {
3573     return ZOOM_options_getl(p->options, key, lenp);
3574 }
3575
3576 ZOOM_API(void)
3577     ZOOM_package_option_set(ZOOM_package p, const char *key,
3578                             const char *val)
3579 {
3580     ZOOM_options_set(p->options, key, val);
3581 }
3582
3583 ZOOM_API(void)
3584     ZOOM_package_option_setl(ZOOM_package p, const char *key,
3585                              const char *val, int len)
3586 {
3587     ZOOM_options_setl(p->options, key, val, len);
3588 }
3589
3590 static int ZOOM_connection_exec_task(ZOOM_connection c)
3591 {
3592     ZOOM_task task = c->tasks;
3593     zoom_ret ret = zoom_complete;
3594
3595     if (!task)
3596         return 0;
3597     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3598             c, task->which, task->running);
3599     if (c->error != ZOOM_ERROR_NONE)
3600     {
3601         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3602                 "removing tasks because of error = %d", c, c->error);
3603         ZOOM_connection_remove_tasks(c);
3604         return 0;
3605     }
3606     if (task->running)
3607     {
3608         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3609                 "task already running", c);
3610         return 0;
3611     }
3612     task->running = 1;
3613     ret = zoom_complete;
3614     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3615     {
3616         switch (task->which)
3617         {
3618         case ZOOM_TASK_SEARCH:
3619             if (c->proto == PROTO_HTTP)
3620                 ret = ZOOM_connection_srw_send_search(c);
3621             else
3622                 ret = ZOOM_connection_send_search(c);
3623             break;
3624         case ZOOM_TASK_RETRIEVE:
3625             if (c->proto == PROTO_HTTP)
3626                 ret = ZOOM_connection_srw_send_search(c);
3627             else
3628                 ret = send_present(c);
3629             break;
3630         case ZOOM_TASK_CONNECT:
3631             ret = do_connect(c);
3632             break;
3633         case ZOOM_TASK_SCAN:
3634             if (c->proto == PROTO_HTTP)
3635                 ret = ZOOM_connection_srw_send_scan(c);
3636             else
3637                 ret = ZOOM_connection_send_scan(c);
3638             break;
3639         case ZOOM_TASK_PACKAGE:
3640             ret = send_package(c);
3641             break;
3642         case ZOOM_TASK_SORT:
3643             c->tasks->u.sort.resultset->r_sort_spec =
3644                 c->tasks->u.sort.q->sort_spec;
3645             ret = send_sort(c, c->tasks->u.sort.resultset);
3646             break;
3647         }
3648     }
3649     else
3650     {
3651         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3652                 "remove tasks because no connection exist", c);
3653         ZOOM_connection_remove_tasks(c);
3654     }
3655     if (ret == zoom_complete)
3656     {
3657         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3658                 "task removed (complete)", c);
3659         ZOOM_connection_remove_task(c);
3660         return 0;
3661     }
3662     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3663             "task pending", c);
3664     return 1;
3665 }
3666
3667 static zoom_ret send_sort_present(ZOOM_connection c)
3668 {
3669     zoom_ret r = zoom_complete;
3670
3671     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3672         r = send_sort(c, c->tasks->u.search.resultset);
3673     if (r == zoom_complete)
3674         r = send_present(c);
3675     return r;
3676 }
3677
3678 static int es_response_taskpackage_update(ZOOM_connection c,
3679                 Z_IUUpdateTaskPackage *utp)
3680 {
3681         if (utp && utp->targetPart)
3682         {
3683                 Z_IUTargetPart *targetPart = utp->targetPart;
3684                 switch ( *targetPart->updateStatus ) {
3685                         case Z_IUTargetPart_success:
3686                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "success");
3687                                 break;
3688                         case Z_IUTargetPart_partial:
3689                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "partial");
3690                                 break;
3691                         case Z_IUTargetPart_failure:
3692                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "failure");
3693                                 if (targetPart->globalDiagnostics && targetPart->num_globalDiagnostics > 0)
3694                                         response_diag(c, targetPart->globalDiagnostics[0]);
3695                                 break;
3696                 }
3697                 // NOTE: Individual record status, surrogate diagnostics, and supplemental diagnostics ARE NOT REPORTED.
3698         }
3699     return 1;
3700 }
3701
3702 static int es_response_taskpackage(ZOOM_connection c,
3703                                    Z_TaskPackage *taskPackage)
3704 {
3705         // targetReference
3706         Odr_oct *id = taskPackage->targetReference;
3707         if (id)
3708                 ZOOM_options_setl(c->tasks->u.package->options,
3709                                                         "targetReference", (char*) id->buf, id->len);
3710
3711         // taskStatus
3712         switch ( *taskPackage->taskStatus ) {
3713                 case Z_TaskPackage_pending:
3714                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "pending");
3715                         break;
3716                 case Z_TaskPackage_active:
3717                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "active");
3718                         break;
3719                 case Z_TaskPackage_complete:
3720                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "complete");
3721                         break;
3722                 case Z_TaskPackage_aborted:
3723                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "aborted");
3724                         if ( taskPackage->num_packageDiagnostics && taskPackage->packageDiagnostics )
3725                                 response_diag(c, taskPackage->packageDiagnostics[0]);
3726                         break;
3727         }
3728
3729         // taskSpecificParameters
3730         // NOTE: Only Update implemented, no others.
3731         if ( taskPackage->taskSpecificParameters->which == Z_External_update ) {
3732                         Z_IUUpdateTaskPackage *utp = taskPackage->taskSpecificParameters->u.update->u.taskPackage;
3733                         es_response_taskpackage_update(c, utp);
3734         }
3735         return 1;
3736 }
3737
3738
3739 static int es_response(ZOOM_connection c,
3740                        Z_ExtendedServicesResponse *res)
3741 {
3742     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3743         return 0;
3744     switch (*res->operationStatus) {
3745         case Z_ExtendedServicesResponse_done:
3746             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "done");
3747             break;
3748         case Z_ExtendedServicesResponse_accepted:
3749             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "accepted");
3750             break;
3751         case Z_ExtendedServicesResponse_failure:
3752             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "failure");
3753             if (res->diagnostics && res->num_diagnostics > 0)
3754                 response_diag(c, res->diagnostics[0]);
3755             break;
3756     }
3757     if (res->taskPackage &&
3758         res->taskPackage->which == Z_External_extendedService)
3759     {
3760         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
3761         es_response_taskpackage(c, taskPackage);
3762     }
3763     if (res->taskPackage &&
3764         res->taskPackage->which == Z_External_octet)
3765     {
3766         Odr_oct *doc = res->taskPackage->u.octet_aligned;
3767         ZOOM_options_setl(c->tasks->u.package->options,
3768                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
3769     }
3770     return 1;
3771 }
3772
3773 static void interpret_init_diag(ZOOM_connection c,
3774                                 Z_DiagnosticFormat *diag)
3775 {
3776     if (diag->num > 0)
3777     {
3778         Z_DiagnosticFormat_s *ds = diag->elements[0];
3779         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
3780             response_default_diag(c, ds->u.defaultDiagRec);
3781     }
3782 }
3783
3784
3785 static void interpret_otherinformation_field(ZOOM_connection c,
3786                                              Z_OtherInformation *ui)
3787 {
3788     int i;
3789     for (i = 0; i < ui->num_elements; i++)
3790     {
3791         Z_OtherInformationUnit *unit = ui->list[i];
3792         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
3793             unit->information.externallyDefinedInfo &&
3794             unit->information.externallyDefinedInfo->which ==
3795             Z_External_diag1)
3796         {
3797             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
3798         }
3799     }
3800 }
3801
3802
3803 static void set_init_option(const char *name, void *clientData) {
3804     ZOOM_connection c = (ZOOM_connection) clientData;
3805     char buf[80];
3806
3807     sprintf(buf, "init_opt_%.70s", name);
3808     ZOOM_connection_option_set(c, buf, "1");
3809 }
3810
3811
3812 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
3813 {
3814     Z_InitResponse *initrs;
3815
3816     ZOOM_connection_set_mask(c, 0);
3817     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
3818     switch(apdu->which)
3819     {
3820     case Z_APDU_initResponse:
3821         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
3822         initrs = apdu->u.initResponse;
3823         ZOOM_connection_option_set(c, "serverImplementationId",
3824                                    initrs->implementationId ?
3825                                    initrs->implementationId : "");
3826         ZOOM_connection_option_set(c, "serverImplementationName",
3827                                    initrs->implementationName ?
3828                                    initrs->implementationName : "");
3829         ZOOM_connection_option_set(c, "serverImplementationVersion",
3830                                    initrs->implementationVersion ?
3831                                    initrs->implementationVersion : "");
3832         /* Set the three old options too, for old applications */
3833         ZOOM_connection_option_set(c, "targetImplementationId",
3834                                    initrs->implementationId ?
3835                                    initrs->implementationId : "");
3836         ZOOM_connection_option_set(c, "targetImplementationName",
3837                                    initrs->implementationName ?
3838                                    initrs->implementationName : "");
3839         ZOOM_connection_option_set(c, "targetImplementationVersion",
3840                                    initrs->implementationVersion ?
3841                                    initrs->implementationVersion : "");
3842
3843         /* Make initrs->options available as ZOOM-level options */
3844         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
3845
3846         if (!*initrs->result)
3847         {
3848             Z_External *uif = initrs->userInformationField;
3849
3850             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
3851
3852             if (uif && uif->which == Z_External_userInfo1)
3853                 interpret_otherinformation_field(c, uif->u.userInfo1);
3854         }
3855         else
3856         {
3857             char *cookie =
3858                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
3859                                       yaz_oid_userinfo_cookie, 1, 0);
3860             xfree(c->cookie_in);
3861             c->cookie_in = 0;
3862             if (cookie)
3863                 c->cookie_in = xstrdup(cookie);
3864             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
3865                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
3866                 c->support_named_resultsets = 1;
3867             if (c->tasks)
3868             {
3869                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
3870                 ZOOM_connection_remove_task(c);
3871             }
3872             ZOOM_connection_exec_task(c);
3873         }
3874         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
3875         {
3876             NMEM tmpmem = nmem_create();
3877             Z_CharSetandLanguageNegotiation *p =
3878                 yaz_get_charneg_record(initrs->otherInfo);
3879
3880             if (p)
3881             {
3882                 char *charset = NULL, *lang = NULL;
3883                 int sel;
3884
3885                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
3886                 yaz_log(log_details, "%p recv_apdu target accepted: "
3887                         "charset %s, language %s, select %d",
3888                         c,
3889                         charset ? charset : "none", lang ? lang : "none", sel);
3890                 if (charset)
3891                     ZOOM_connection_option_set(c, "negotiation-charset",
3892                                                charset);
3893                 if (lang)
3894                     ZOOM_connection_option_set(c, "negotiation-lang",
3895                                                lang);
3896
3897                 ZOOM_connection_option_set(
3898                     c,  "negotiation-charset-in-effect-for-records",
3899                     (sel != 0) ? "1" : "0");
3900                 nmem_destroy(tmpmem);
3901             }
3902         }
3903         break;
3904     case Z_APDU_searchResponse:
3905         yaz_log(log_api, "%p recv_apdu Search response", c);
3906         handle_search_response(c, apdu->u.searchResponse);
3907         if (send_sort_present(c) == zoom_complete)
3908             ZOOM_connection_remove_task(c);
3909         break;
3910     case Z_APDU_presentResponse:
3911         yaz_log(log_api, "%p recv_apdu Present response", c);
3912         handle_present_response(c, apdu->u.presentResponse);
3913         if (send_present(c) == zoom_complete)
3914             ZOOM_connection_remove_task(c);
3915         break;
3916     case Z_APDU_sortResponse:
3917         yaz_log(log_api, "%p recv_apdu Sort response", c);
3918         sort_response(c, apdu->u.sortResponse);
3919         if (send_present(c) == zoom_complete)
3920             ZOOM_connection_remove_task(c);
3921         break;
3922     case Z_APDU_scanResponse:
3923         yaz_log(log_api, "%p recv_apdu Scan response", c);
3924         scan_response(c, apdu->u.scanResponse);
3925         ZOOM_connection_remove_task(c);
3926         break;
3927     case Z_APDU_extendedServicesResponse:
3928         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
3929         es_response(c, apdu->u.extendedServicesResponse);
3930         ZOOM_connection_remove_task(c);
3931         break;
3932     case Z_APDU_close:
3933         yaz_log(log_api, "%p recv_apdu Close PDU", c);
3934         if (!ZOOM_test_reconnect(c))
3935         {
3936             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
3937             do_close(c);
3938         }
3939         break;
3940     default:
3941         yaz_log(log_api, "%p Received unknown PDU", c);
3942         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
3943         do_close(c);
3944     }
3945 }
3946
3947 #if YAZ_HAVE_XML2
3948 static zoom_ret handle_srw_response(ZOOM_connection c,
3949                                     Z_SRW_searchRetrieveResponse *res)
3950 {
3951     ZOOM_resultset resultset = 0;
3952     int i;
3953     NMEM nmem;
3954     ZOOM_Event event;
3955     int *start, *count;
3956     const char *syntax, *elementSetName;
3957
3958     if (!c->tasks)
3959         return zoom_complete;
3960
3961     switch(c->tasks->which)
3962     {
3963     case ZOOM_TASK_SEARCH:
3964         resultset = c->tasks->u.search.resultset;
3965         start = &c->tasks->u.search.start;
3966         count = &c->tasks->u.search.count;
3967         syntax = c->tasks->u.search.syntax;
3968         elementSetName = c->tasks->u.search.elementSetName;
3969         break;
3970     case ZOOM_TASK_RETRIEVE:
3971         resultset = c->tasks->u.retrieve.resultset;
3972         start = &c->tasks->u.retrieve.start;
3973         count = &c->tasks->u.retrieve.count;
3974         syntax = c->tasks->u.retrieve.syntax;
3975         elementSetName = c->tasks->u.retrieve.elementSetName;
3976         break;
3977     default:
3978         return zoom_complete;
3979     }
3980     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
3981     ZOOM_connection_put_event(c, event);
3982
3983     resultset->size = 0;
3984
3985     if (res->resultSetId)
3986         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
3987
3988     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
3989
3990     if (res->numberOfRecords)
3991         resultset->size = *res->numberOfRecords;
3992
3993     for (i = 0; i<res->num_records; i++)
3994     {
3995         int pos;
3996         Z_SRW_record *sru_rec;
3997         Z_SRW_diagnostic *diag = 0;
3998         int num_diag;
3999
4000         Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
4001             odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
4002
4003         if (res->records[i].recordPosition &&
4004             *res->records[i].recordPosition > 0)
4005             pos = *res->records[i].recordPosition - 1;
4006         else
4007             pos = *start + i;
4008
4009         sru_rec = &res->records[i];
4010
4011         npr->databaseName = 0;
4012         npr->which = Z_NamePlusRecord_databaseRecord;
4013         npr->u.databaseRecord = (Z_External *)
4014             odr_malloc(c->odr_in, sizeof(Z_External));
4015         npr->u.databaseRecord->descriptor = 0;
4016         npr->u.databaseRecord->direct_reference =
4017             odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
4018         npr->u.databaseRecord->which = Z_External_octet;
4019
4020         npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
4021             odr_malloc(c->odr_in, sizeof(Odr_oct));
4022         npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
4023             sru_rec->recordData_buf;
4024         npr->u.databaseRecord->u.octet_aligned->len =
4025             npr->u.databaseRecord->u.octet_aligned->size =
4026             sru_rec->recordData_len;
4027
4028         if (sru_rec->recordSchema
4029             && !strcmp(sru_rec->recordSchema,
4030                        "info:srw/schema/1/diagnostics-v1.1"))
4031         {
4032             sru_decode_surrogate_diagnostics(sru_rec->recordData_buf,
4033                                              sru_rec->recordData_len,
4034                                              &diag, &num_diag,
4035                                              resultset->odr);
4036         }
4037         record_cache_add(resultset, npr, pos, syntax, elementSetName,
4038                          sru_rec->recordSchema, diag);
4039     }
4040     *count -= i;
4041     *start += i;
4042     if (*count + *start > resultset->size)
4043         *count = resultset->size - *start;
4044     if (*count < 0)
4045         *count = 0;
4046
4047     if (res->num_diagnostics > 0)
4048         set_SRU_error(c, &res->diagnostics[0]);
4049     nmem = odr_extract_mem(c->odr_in);
4050     nmem_transfer(odr_getmem(resultset->odr), nmem);
4051     nmem_destroy(nmem);
4052
4053     if (*count > 0)
4054         return ZOOM_connection_srw_send_search(c);
4055     return zoom_complete;
4056 }
4057 #endif
4058
4059 #if YAZ_HAVE_XML2
4060 static void handle_srw_scan_response(ZOOM_connection c,
4061                                      Z_SRW_scanResponse *res)
4062 {
4063     NMEM nmem = odr_extract_mem(c->odr_in);
4064     ZOOM_scanset scan;
4065
4066     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
4067         return;
4068     scan = c->tasks->u.scan.scan;
4069
4070     if (res->num_diagnostics > 0)
4071         set_SRU_error(c, &res->diagnostics[0]);
4072
4073     scan->scan_response = 0;
4074     scan->srw_scan_response = res;
4075     nmem_transfer(odr_getmem(scan->odr), nmem);
4076
4077     ZOOM_options_set_int(scan->options, "number", res->num_terms);
4078     nmem_destroy(nmem);
4079 }
4080 #endif
4081
4082 #if YAZ_HAVE_XML2
4083 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
4084 {
4085     zoom_ret cret = zoom_complete;
4086     int ret = -1;
4087     const char *addinfo = 0;
4088     const char *connection_head = z_HTTP_header_lookup(hres->headers,
4089                                                        "Connection");
4090     ZOOM_connection_set_mask(c, 0);
4091     yaz_log(log_details, "%p handle_http", c);
4092
4093     if (!yaz_srw_check_content_type(hres))
4094         addinfo = "content-type";
4095     else
4096     {
4097         Z_SOAP *soap_package = 0;
4098         ODR o = c->odr_in;
4099         Z_SOAP_Handler soap_handlers[2] = {
4100             {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
4101             {0, 0, 0}
4102         };
4103         ret = z_soap_codec(o, &soap_package,
4104                            &hres->content_buf, &hres->content_len,
4105                            soap_handlers);
4106         if (!ret && soap_package->which == Z_SOAP_generic &&
4107             soap_package->u.generic->no == 0)
4108         {
4109             Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
4110
4111             ZOOM_options_set(c->options, "sru_version", sr->srw_version);
4112             if (sr->which == Z_SRW_searchRetrieve_response)
4113                 cret = handle_srw_response(c, sr->u.response);
4114             else if (sr->which == Z_SRW_scan_response)
4115                 handle_srw_scan_response(c, sr->u.scan_response);
4116             else
4117                 ret = -1;
4118         }
4119         else if (!ret && (soap_package->which == Z_SOAP_fault
4120                           || soap_package->which == Z_SOAP_error))
4121         {
4122             set_HTTP_error(c, hres->code,
4123                            soap_package->u.fault->fault_code,
4124                            soap_package->u.fault->fault_string);
4125         }
4126         else
4127             ret = -1;
4128     }
4129     if (ret)
4130     {
4131         if (hres->code != 200)
4132             set_HTTP_error(c, hres->code, 0, 0);
4133         else
4134             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
4135         do_close(c);
4136     }
4137     if (cret == zoom_complete)
4138         ZOOM_connection_remove_task(c);
4139     if (!strcmp(hres->version, "1.0"))
4140     {
4141         /* HTTP 1.0: only if Keep-Alive we stay alive.. */
4142         if (!connection_head || strcmp(connection_head, "Keep-Alive"))
4143             do_close(c);
4144     }
4145     else
4146     {
4147         /* HTTP 1.1: only if no close we stay alive .. */
4148         if (connection_head && !strcmp(connection_head, "close"))
4149             do_close(c);
4150     }
4151 }
4152 #endif
4153
4154 static int do_read(ZOOM_connection c)
4155 {
4156     int r, more;
4157     ZOOM_Event event;
4158
4159     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
4160     ZOOM_connection_put_event(c, event);
4161
4162     r = cs_get(c->cs, &c->buf_in, &c->len_in);
4163     more = cs_more(c->cs);
4164     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4165     if (r == 1)
4166         return 0;
4167     if (r <= 0)
4168     {
4169         if (!ZOOM_test_reconnect(c))
4170         {
4171             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4172             do_close(c);
4173         }
4174     }
4175     else
4176     {
4177         Z_GDU *gdu;
4178         ZOOM_Event event;
4179
4180         odr_reset(c->odr_in);
4181         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4182         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4183         ZOOM_connection_put_event(c, event);
4184
4185         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4186         {
4187             int x;
4188             int err = odr_geterrorx(c->odr_in, &x);
4189             char msg[100];
4190             const char *element = odr_getelement(c->odr_in);
4191             yaz_snprintf(msg, sizeof(msg),
4192                     "ODR code %d:%d element=%s offset=%d",
4193                     err, x, element ? element : "<unknown>",
4194                     odr_offset(c->odr_in));
4195             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4196             if (log_api)
4197             {
4198                 FILE *ber_file = yaz_log_file();
4199                 if (ber_file)
4200                     odr_dumpBER(ber_file, c->buf_in, r);
4201             }
4202             do_close(c);
4203         }
4204         else
4205         {
4206             if (c->odr_print)
4207                 z_GDU(c->odr_print, &gdu, 0, 0);
4208             if (gdu->which == Z_GDU_Z3950)
4209                 recv_apdu(c, gdu->u.z3950);
4210             else if (gdu->which == Z_GDU_HTTP_Response)
4211             {
4212 #if YAZ_HAVE_XML2
4213                 handle_http(c, gdu->u.HTTP_Response);
4214 #else
4215                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4216                 do_close(c);
4217 #endif
4218             }
4219         }
4220         c->reconnect_ok = 0;
4221     }
4222     return 1;
4223 }
4224
4225 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4226 {
4227     int r;
4228     ZOOM_Event event;
4229
4230     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4231     ZOOM_connection_put_event(c, event);
4232
4233     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4234     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4235     {
4236         yaz_log(log_details, "%p do_write_ex write failed", c);
4237         if (ZOOM_test_reconnect(c))
4238         {
4239             return zoom_pending;
4240         }
4241         if (c->state == STATE_CONNECTING)
4242             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4243         else
4244             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4245         do_close(c);
4246         return zoom_complete;
4247     }
4248     else if (r == 1)
4249     {
4250         int mask = ZOOM_SELECT_EXCEPT;
4251         if (c->cs->io_pending & CS_WANT_WRITE)
4252             mask += ZOOM_SELECT_WRITE;
4253         if (c->cs->io_pending & CS_WANT_READ)
4254             mask += ZOOM_SELECT_READ;
4255         ZOOM_connection_set_mask(c, mask);
4256         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4257                 c, c->mask);
4258     }
4259     else
4260     {
4261         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4262         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4263                 c, c->mask);
4264     }
4265     return zoom_pending;
4266 }
4267
4268 static zoom_ret do_write(ZOOM_connection c)
4269 {
4270     return do_write_ex(c, c->buf_out, c->len_out);
4271 }
4272
4273
4274 ZOOM_API(const char *)
4275     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4276 {
4277     return ZOOM_options_get(c->options, key);
4278 }
4279
4280 ZOOM_API(const char *)
4281     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4282 {
4283     return ZOOM_options_getl(c->options, key, lenp);
4284 }
4285
4286 ZOOM_API(void)
4287     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4288                                const char *val)
4289 {
4290     ZOOM_options_set(c->options, key, val);
4291 }
4292
4293 ZOOM_API(void)
4294     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4295                                 const char *val, int len)
4296 {
4297     ZOOM_options_setl(c->options, key, val, len);
4298 }
4299
4300 ZOOM_API(const char *)
4301     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4302 {
4303     return ZOOM_options_get(r->options, key);
4304 }
4305
4306 ZOOM_API(void)
4307     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4308                               const char *val)
4309 {
4310     ZOOM_options_set(r->options, key, val);
4311 }
4312
4313
4314 ZOOM_API(int)
4315     ZOOM_connection_errcode(ZOOM_connection c)
4316 {
4317     return ZOOM_connection_error(c, 0, 0);
4318 }
4319
4320 ZOOM_API(const char *)
4321     ZOOM_connection_errmsg(ZOOM_connection c)
4322 {
4323     const char *msg;
4324     ZOOM_connection_error(c, &msg, 0);
4325     return msg;
4326 }
4327
4328 ZOOM_API(const char *)
4329     ZOOM_connection_addinfo(ZOOM_connection c)
4330 {
4331     const char *addinfo;
4332     ZOOM_connection_error(c, 0, &addinfo);
4333     return addinfo;
4334 }
4335
4336 ZOOM_API(const char *)
4337     ZOOM_connection_diagset(ZOOM_connection c)
4338 {
4339     const char *diagset;
4340     ZOOM_connection_error_x(c, 0, 0, &diagset);
4341     return diagset;
4342 }
4343
4344 ZOOM_API(const char *)
4345     ZOOM_diag_str(int error)
4346 {
4347     switch (error)
4348     {
4349     case ZOOM_ERROR_NONE:
4350         return "No error";
4351     case ZOOM_ERROR_CONNECT:
4352         return "Connect failed";
4353     case ZOOM_ERROR_MEMORY:
4354         return "Out of memory";
4355     case ZOOM_ERROR_ENCODE:
4356         return "Encoding failed";
4357     case ZOOM_ERROR_DECODE:
4358         return "Decoding failed";
4359     case ZOOM_ERROR_CONNECTION_LOST:
4360         return "Connection lost";
4361     case ZOOM_ERROR_INIT:
4362         return "Init rejected";
4363     case ZOOM_ERROR_INTERNAL:
4364         return "Internal failure";
4365     case ZOOM_ERROR_TIMEOUT:
4366         return "Timeout";
4367     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4368         return "Unsupported protocol";
4369     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4370         return "Unsupported query type";
4371     case ZOOM_ERROR_INVALID_QUERY:
4372         return "Invalid query";
4373     case ZOOM_ERROR_CQL_PARSE:
4374         return "CQL parsing error";
4375     case ZOOM_ERROR_CQL_TRANSFORM:
4376         return "CQL transformation error";
4377     case ZOOM_ERROR_CCL_CONFIG:
4378         return "CCL configuration error";
4379     case ZOOM_ERROR_CCL_PARSE:
4380         return "CCL parsing error";
4381     default:
4382         return diagbib1_str(error);
4383     }
4384 }
4385
4386 ZOOM_API(int)
4387     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4388                             const char **addinfo, const char **diagset)
4389 {
4390     int error = c->error;
4391     if (cp)
4392     {
4393         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4394             *cp = ZOOM_diag_str(error);
4395         else if (!strcmp(c->diagset, "HTTP"))
4396             *cp = z_HTTP_errmsg(c->error);
4397         else if (!strcmp(c->diagset, "Bib-1"))
4398             *cp = ZOOM_diag_str(error);
4399         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4400             *cp = yaz_diag_srw_str(c->error);
4401         else
4402             *cp = "Unknown error and diagnostic set";
4403     }
4404     if (addinfo)
4405         *addinfo = c->addinfo ? c->addinfo : "";
4406     if (diagset)
4407         *diagset = c->diagset ? c->diagset : "";
4408     return c->error;
4409 }
4410
4411 ZOOM_API(int)
4412     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4413                           const char **addinfo)
4414 {
4415     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4416 }
4417
4418 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4419 {
4420     ZOOM_Event event = 0;
4421     int r = cs_look(c->cs);
4422     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4423             c, mask, r);
4424
4425     if (r == CS_NONE)
4426     {
4427         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4428         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4429         do_close(c);
4430         ZOOM_connection_put_event(c, event);
4431     }
4432     else if (r == CS_CONNECT)
4433     {
4434         int ret = ret = cs_rcvconnect(c->cs);
4435         yaz_log(log_details, "%p ZOOM_connection_do_io "
4436                 "cs_rcvconnect returned %d", c, ret);
4437         if (ret == 1)
4438         {
4439             int mask = ZOOM_SELECT_EXCEPT;
4440             if (c->cs->io_pending & CS_WANT_WRITE)
4441                 mask += ZOOM_SELECT_WRITE;
4442             if (c->cs->io_pending & CS_WANT_READ)
4443                 mask += ZOOM_SELECT_READ;
4444             ZOOM_connection_set_mask(c, mask);
4445             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4446             ZOOM_connection_put_event(c, event);
4447         }
4448         else if (ret == 0)
4449         {
4450             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4451             ZOOM_connection_put_event(c, event);
4452             get_cert(c);
4453             if (c->proto == PROTO_Z3950)
4454                 ZOOM_connection_send_init(c);
4455             else
4456             {
4457                 /* no init request for SRW .. */
4458                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4459                 ZOOM_connection_remove_task(c);
4460                 ZOOM_connection_set_mask(c, 0);
4461                 ZOOM_connection_exec_task(c);
4462             }
4463             c->state = STATE_ESTABLISHED;
4464         }
4465         else
4466         {
4467             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4468             do_close(c);
4469         }
4470     }
4471     else
4472     {
4473         if (mask & ZOOM_SELECT_EXCEPT)
4474         {
4475             if (!ZOOM_test_reconnect(c))
4476             {
4477                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4478                 do_close(c);
4479             }
4480             return;
4481         }
4482         if (mask & ZOOM_SELECT_READ)
4483             do_read(c);
4484         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4485             do_write(c);
4486     }
4487 }
4488
4489 ZOOM_API(int)
4490     ZOOM_connection_last_event(ZOOM_connection cs)
4491 {
4492     if (!cs)
4493         return ZOOM_EVENT_NONE;
4494     return cs->last_event;
4495 }
4496
4497
4498 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4499 {
4500     WRBUF wrbuf = (WRBUF) client_data;
4501     wrbuf_puts(wrbuf, buf);
4502 }
4503
4504 /*
4505  * Returns an xmalloc()d string containing RPN that corresponds to the
4506  * CQL passed in.  On error, sets the Connection object's error state
4507  * and returns a null pointer.
4508  * ### We could cache CQL parser and/or transformer in Connection.
4509  */
4510 static char *cql2pqf(ZOOM_connection c, const char *cql)
4511 {
4512     CQL_parser parser;
4513     int error;
4514     const char *cqlfile;
4515     cql_transform_t trans;
4516     char *result = 0;
4517
4518     parser = cql_parser_create();
4519     if ((error = cql_parser_string(parser, cql)) != 0) {
4520         cql_parser_destroy(parser);
4521         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4522         return 0;
4523     }
4524
4525     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4526     if (cqlfile == 0)
4527     {
4528         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4529     }
4530     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4531     {
4532         char buf[512];
4533         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4534                 cqlfile, strerror(errno));
4535         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4536     }
4537     else
4538     {
4539         WRBUF wrbuf_result = wrbuf_alloc();
4540         error = cql_transform(trans, cql_parser_result(parser),
4541                               cql2pqf_wrbuf_puts, wrbuf_result);
4542         if (error != 0) {
4543             char buf[512];
4544             const char *addinfo;
4545             error = cql_transform_error(trans, &addinfo);
4546             sprintf(buf, "%.200s (addinfo=%.200s)",
4547                     cql_strerror(error), addinfo);
4548             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4549         }
4550         else
4551         {
4552             result = xstrdup(wrbuf_cstr(wrbuf_result));
4553         }
4554         cql_transform_close(trans);
4555         wrbuf_destroy(wrbuf_result);
4556     }
4557     cql_parser_destroy(parser);
4558     return result;
4559 }
4560
4561 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4562 {
4563     if (c->mask)
4564     {
4565         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4566         /* timeout and this connection was waiting */
4567         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4568         do_close(c);
4569         ZOOM_connection_put_event(c, event);
4570     }
4571     return 0;
4572 }
4573
4574 ZOOM_API(int)
4575     ZOOM_connection_process(ZOOM_connection c)
4576 {
4577     ZOOM_Event event;
4578     if (!c)
4579         return 0;
4580
4581     event = ZOOM_connection_get_event(c);
4582     if (event)
4583     {
4584         ZOOM_Event_destroy(event);
4585         return 1;
4586     }
4587     ZOOM_connection_exec_task(c);
4588     event = ZOOM_connection_get_event(c);
4589     if (event)
4590     {
4591         ZOOM_Event_destroy(event);
4592         return 1;
4593     }
4594     return 0;
4595 }
4596
4597 ZOOM_API(int)
4598     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4599 {
4600     int i;
4601
4602     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4603
4604     for (i = 0; i<no; i++)
4605     {
4606         ZOOM_connection c = cs[i];
4607
4608         if (c && ZOOM_connection_process(c))
4609             return i+1;
4610     }
4611     return 0;
4612 }
4613
4614 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4615 {
4616     if (c->mask && mask)
4617         ZOOM_connection_do_io(c, mask);
4618     return 0;
4619 }
4620
4621 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
4622 {
4623     if (c->cs)
4624         return cs_fileno(c->cs);
4625     return -1;
4626 }
4627
4628 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
4629 {
4630     c->mask = mask;
4631     if (!c->cs)
4632         return -1;
4633     return 0;
4634 }
4635
4636 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
4637 {
4638     if (c->cs)
4639         return c->mask;
4640     return 0;
4641 }
4642
4643 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
4644 {
4645     return ZOOM_options_get_int(c->options, "timeout", 30);
4646 }
4647
4648 /*
4649  * Local variables:
4650  * c-basic-offset: 4
4651  * indent-tabs-mode: nil
4652  * End:
4653  * vim: shiftwidth=4 tabstop=8 expandtab
4654  */
4655