zutil/zoom-c.c

   1 /*
   2  * Copyright (c) 2000-2003, Index Data
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: zoom-c.c,v 1.17 2003-02-12 15:06:44 adam Exp $
   6  *
   7  * ZOOM layer for C, connections, result sets, queries.
   8  */
   9 #include <assert.h>
  10 #include <string.h>
  11 #include "zoom-p.h"
  12
  13 #include <yaz/xmalloc.h>
  14 #include <yaz/otherinfo.h>
  15 #include <yaz/log.h>
  16 #include <yaz/pquery.h>
  17 #include <yaz/marcdisp.h>
  18 #include <yaz/diagbib1.h>
  19 #include <yaz/charneg.h>
  20 #include <yaz/ill.h>
  21
  22
  23 #if HAVE_SYS_POLL_H
  24 #include <sys/poll.h>
  25 #endif
  26
  27 typedef enum {
  28     zoom_pending,
  29     zoom_complete
  30 } zoom_ret;
  31
  32 static zoom_ret ZOOM_connection_send_init (ZOOM_connection c);
  33 static zoom_ret do_write_ex (ZOOM_connection c, char *buf_out, int len_out);
  34
  35 static ZOOM_Event ZOOM_Event_create (int kind)
  36 {
  37     ZOOM_Event event = (ZOOM_Event) xmalloc (sizeof(*event));
  38     event->kind = kind;
  39     event->next = 0;
  40     event->prev = 0;
  41     return event;
  42 }
  43
  44 static void ZOOM_Event_destroy (ZOOM_Event event)
  45 {
  46     xfree (event);
  47 }
  48
  49 static void ZOOM_connection_put_event (ZOOM_connection c, ZOOM_Event event)
  50 {
  51     if (c->m_queue_back)
  52     {
  53         c->m_queue_back->prev = event;
  54         assert (c->m_queue_front);
  55     }
  56     else
  57     {
  58         assert (!c->m_queue_front);
  59         c->m_queue_front = event;
  60     }
  61     event->next = c->m_queue_back;
  62     event->prev = 0;
  63     c->m_queue_back = event;
  64 }
  65
  66 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
  67 {
  68     ZOOM_Event event = c->m_queue_front;
  69     if (!event)
  70         return 0;
  71     assert (c->m_queue_back);
  72     c->m_queue_front = event->prev;
  73     if (c->m_queue_front)
  74     {
  75         assert (c->m_queue_back);
  76         c->m_queue_front->next = 0;
  77     }
  78     else
  79         c->m_queue_back = 0;
  80     c->last_event = event->kind;
  81     return event;
  82 }
  83
  84 static void set_bib1_error (ZOOM_connection c, int error)
  85 {
  86     xfree (c->addinfo);
  87     c->addinfo = 0;
  88     c->error = error;
  89     c->diagset = "Bib-1";
  90 }
  91
  92 static void set_ZOOM_error (ZOOM_connection c, int error,
  93                             const char *addinfo)
  94 {
  95     xfree (c->addinfo);
  96     c->addinfo = 0;
  97     c->error = error;
  98     c->diagset = "ZOOM";
  99     if (addinfo)
 100         c->addinfo = xstrdup(addinfo);
 101 }
 102
 103 static void clear_error (ZOOM_connection c)
 104 {
 105
 106     switch (c->error)
 107     {
 108     case ZOOM_ERROR_CONNECT:
 109     case ZOOM_ERROR_MEMORY:
 110     case ZOOM_ERROR_DECODE:
 111     case ZOOM_ERROR_CONNECTION_LOST:
 112     case ZOOM_ERROR_INIT:
 113     case ZOOM_ERROR_INTERNAL:
 114     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
 115         break;
 116     default:
 117         set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 118     }
 119 }
 120
 121 ZOOM_task ZOOM_connection_add_task (ZOOM_connection c, int which)
 122 {
 123     ZOOM_task *taskp = &c->tasks;
 124     while (*taskp)
 125         taskp = &(*taskp)->next;
 126     *taskp = (ZOOM_task) xmalloc (sizeof(**taskp));
 127     (*taskp)->running = 0;
 128     (*taskp)->which = which;
 129     (*taskp)->next = 0;
 130     clear_error (c);
 131     return *taskp;
 132 }
 133
 134 ZOOM_task ZOOM_connection_insert_task (ZOOM_connection c, int which)
 135 {
 136     ZOOM_task task = (ZOOM_task) xmalloc (sizeof(*task));
 137
 138     task->next = c->tasks;
 139     c->tasks = task;
 140
 141     task->running = 0;
 142     task->which = which;
 143     clear_error (c);
 144     return task;
 145 }
 146
 147 void ZOOM_connection_remove_task (ZOOM_connection c)
 148 {
 149     ZOOM_task task = c->tasks;
 150
 151     if (task)
 152     {
 153         c->tasks = task->next;
 154         switch (task->which)
 155         {
 156         case ZOOM_TASK_SEARCH:
 157             ZOOM_resultset_destroy (task->u.search.resultset);
 158             break;
 159         case ZOOM_TASK_RETRIEVE:
 160             ZOOM_resultset_destroy (task->u.retrieve.resultset);
 161             break;
 162         case ZOOM_TASK_CONNECT:
 163             break;
 164         case ZOOM_TASK_SCAN:
 165             ZOOM_scanset_destroy (task->u.scan.scan);
 166             break;
 167         case ZOOM_TASK_PACKAGE:
 168             ZOOM_package_destroy (task->u.package);
 169             break;
 170         default:
 171             assert (0);
 172         }
 173         xfree (task);
 174     }
 175 }
 176
 177 void ZOOM_connection_remove_tasks (ZOOM_connection c)
 178 {
 179     while (c->tasks)
 180         ZOOM_connection_remove_task(c);
 181 }
 182
 183 static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos);
 184
 185 ZOOM_API(ZOOM_connection)
 186 ZOOM_connection_create (ZOOM_options options)
 187 {
 188     ZOOM_connection c = (ZOOM_connection) xmalloc (sizeof(*c));
 189
 190     c->soap = 0;
 191     c->cs = 0;
 192     c->mask = 0;
 193     c->reconnect_ok = 0;
 194     c->state = STATE_IDLE;
 195     c->addinfo = 0;
 196     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 197     c->buf_in = 0;
 198     c->len_in = 0;
 199     c->buf_out = 0;
 200     c->len_out = 0;
 201     c->resultsets = 0;
 202
 203     c->options = ZOOM_options_create_with_parent(options);
 204
 205     c->host_port = 0;
 206     c->proxy = 0;
 207
 208     c->charset = c->lang = 0;
 209
 210     c->cookie_out = 0;
 211     c->cookie_in = 0;
 212     c->client_IP = 0;
 213     c->tasks = 0;
 214
 215     c->odr_in = odr_createmem (ODR_DECODE);
 216     c->odr_out = odr_createmem (ODR_ENCODE);
 217
 218     c->async = 0;
 219     c->support_named_resultsets = 0;
 220     c->last_event = ZOOM_EVENT_NONE;
 221
 222     c->m_queue_front = 0;
 223     c->m_queue_back = 0;
 224     return c;
 225 }
 226
 227 /* set database names. Take local databases (if set); otherwise
 228    take databases given in ZURL (if set); otherwise use Default */
 229 static char **set_DatabaseNames (ZOOM_connection con, ZOOM_options options,
 230                                  int *num)
 231 {
 232     char **databaseNames;
 233     const char *c;
 234     int no = 2;
 235     const char *cp = ZOOM_options_get (options, "databaseName");
 236
 237     if (!cp || !*cp)
 238     {
 239         if (strncmp (con->host_port, "unix:", 5) == 0)
 240             cp = strchr (con->host_port+5, ':');
 241         else
 242             cp = strchr (con->host_port, '/');
 243         if (cp)
 244             cp++;
 245     }
 246     if (cp)
 247     {
 248         c = cp;
 249         while ((c = strchr(c, '+')))
 250         {
 251             c++;
 252             no++;
 253         }
 254     }
 255     else
 256         cp = "Default";
 257     databaseNames = (char**)
 258         odr_malloc (con->odr_out, no * sizeof(*databaseNames));
 259     no = 0;
 260     while (*cp)
 261     {
 262         c = strchr (cp, '+');
 263         if (!c)
 264             c = cp + strlen(cp);
 265         else if (c == cp)
 266         {
 267             cp++;
 268             continue;
 269         }
 270         /* cp ptr to first char of db name, c is char
 271            following db name */
 272         databaseNames[no] = (char*) odr_malloc (con->odr_out, 1+c-cp);
 273         memcpy (databaseNames[no], cp, c-cp);
 274         databaseNames[no++][c-cp] = '\0';
 275         cp = c;
 276         if (*cp)
 277             cp++;
 278     }
 279     databaseNames[no] = NULL;
 280     *num = no;
 281     return databaseNames;
 282 }
 283
 284 ZOOM_API(ZOOM_connection)
 285 ZOOM_connection_new (const char *host, int portnum)
 286 {
 287     ZOOM_connection c = ZOOM_connection_create (0);
 288
 289     ZOOM_connection_connect (c, host, portnum);
 290     return c;
 291 }
 292
 293 ZOOM_API(void)
 294 ZOOM_connection_connect(ZOOM_connection c,
 295                         const char *host, int portnum)
 296 {
 297     const char *val;
 298     ZOOM_task task;
 299
 300     if (c->cs)
 301     {
 302         yaz_log (LOG_DEBUG, "reconnect");
 303         c->reconnect_ok = 1;
 304         return;
 305     }
 306     yaz_log(LOG_DEBUG, "connect");
 307     xfree (c->proxy);
 308     val = ZOOM_options_get (c->options, "proxy");
 309     if (val && *val)
 310         c->proxy = xstrdup (val);
 311     else
 312         c->proxy = 0;
 313
 314     xfree (c->charset);
 315     val = ZOOM_options_get (c->options, "charset");
 316     if (val && *val)
 317         c->charset = xstrdup (val);
 318     else
 319         c->charset = 0;
 320
 321     xfree (c->lang);
 322     val = ZOOM_options_get (c->options, "lang");
 323     if (val && *val)
 324         c->lang = xstrdup (val);
 325     else
 326         c->lang = 0;
 327
 328     xfree (c->host_port);
 329     if (portnum)
 330     {
 331         char hostn[128];
 332         sprintf (hostn, "%.80s:%d", host, portnum);
 333         c->host_port = xstrdup(hostn);
 334     }
 335     else
 336         c->host_port = xstrdup(host);
 337
 338     ZOOM_options_set(c->options, "host", c->host_port);
 339
 340     val = ZOOM_options_get (c->options, "cookie");
 341     if (val && *val)
 342         c->cookie_out = xstrdup (val);
 343
 344     val = ZOOM_options_get (c->options, "clientIP");
 345     if (val && *val)
 346         c->client_IP = xstrdup (val);
 347
 348     c->async = ZOOM_options_get_bool (c->options, "async", 0);
 349
 350     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 351
 352     task = ZOOM_connection_add_task (c, ZOOM_TASK_CONNECT);
 353
 354     if (!c->async)
 355     {
 356         while (ZOOM_event (1, &c))
 357             ;
 358     }
 359 }
 360
 361 ZOOM_API(ZOOM_query)
 362 ZOOM_query_create(void)
 363 {
 364     ZOOM_query s = (ZOOM_query) xmalloc (sizeof(*s));
 365
 366     s->refcount = 1;
 367     s->z_query = 0;
 368     s->sort_spec = 0;
 369     s->odr = odr_createmem (ODR_ENCODE);
 370
 371     return s;
 372 }
 373
 374 ZOOM_API(void)
 375 ZOOM_query_destroy(ZOOM_query s)
 376 {
 377     if (!s)
 378         return;
 379
 380     (s->refcount)--;
 381     yaz_log (LOG_DEBUG, "ZOOM_query_destroy count=%d", s->refcount);
 382     if (s->refcount == 0)
 383     {
 384         odr_destroy (s->odr);
 385         xfree (s);
 386     }
 387 }
 388
 389 ZOOM_API(int)
 390 ZOOM_query_prefix(ZOOM_query s, const char *str)
 391 {
 392     s->z_query = (Z_Query *) odr_malloc (s->odr, sizeof(*s->z_query));
 393     s->z_query->which = Z_Query_type_1;
 394     s->z_query->u.type_1 =  p_query_rpn(s->odr, PROTO_Z3950, str);
 395     if (!s->z_query->u.type_1)
 396         return -1;
 397     return 0;
 398 }
 399
 400 ZOOM_API(int)
 401 ZOOM_query_cql(ZOOM_query s, const char *str)
 402 {
 403     Z_External *ext;
 404
 405     ext = (Z_External *) odr_malloc(s->odr, sizeof(*ext));
 406     ext->direct_reference = odr_getoidbystr(s->odr, "1.2.840.10003.16.2");
 407     ext->indirect_reference = 0;
 408     ext->descriptor = 0;
 409     ext->which = Z_External_CQL;
 410     ext->u.cql = odr_strdup(s->odr, str);
 411
 412     s->z_query = (Z_Query *) odr_malloc (s->odr, sizeof(*s->z_query));
 413     s->z_query->which = Z_Query_type_104;
 414     s->z_query->u.type_104 =  ext;
 415     return 0;
 416 }
 417
 418 ZOOM_API(int)
 419 ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 420 {
 421     s->sort_spec = yaz_sort_spec (s->odr, criteria);
 422     if (!s->sort_spec)
 423         return -1;
 424     return 0;
 425 }
 426
 427 static zoom_ret do_write(ZOOM_connection c);
 428
 429 ZOOM_API(void)
 430 ZOOM_connection_destroy(ZOOM_connection c)
 431 {
 432     ZOOM_resultset r;
 433     if (!c)
 434         return;
 435 #if HAVE_GSOAP
 436     if (c->soap)
 437         soap_end(c->soap);
 438 #endif
 439     if (c->cs)
 440         cs_close (c->cs);
 441     for (r = c->resultsets; r; r = r->next)
 442         r->connection = 0;
 443
 444     xfree (c->buf_in);
 445     xfree (c->addinfo);
 446     odr_destroy (c->odr_in);
 447     odr_destroy (c->odr_out);
 448     ZOOM_options_destroy (c->options);
 449     ZOOM_connection_remove_tasks (c);
 450     xfree (c->host_port);
 451     xfree (c->proxy);
 452     xfree (c->charset);
 453     xfree (c->lang);
 454     xfree (c->cookie_out);
 455     xfree (c->cookie_in);
 456     xfree (c->client_IP);
 457     xfree (c);
 458 }
 459
 460 void ZOOM_resultset_addref (ZOOM_resultset r)
 461 {
 462     if (r)
 463     {
 464         (r->refcount)++;
 465         yaz_log (LOG_DEBUG, "ZOOM_resultset_addref r=%p count=%d",
 466                  r, r->refcount);
 467     }
 468 }
 469 ZOOM_resultset ZOOM_resultset_create ()
 470 {
 471     ZOOM_resultset r = (ZOOM_resultset) xmalloc (sizeof(*r));
 472
 473     yaz_log (LOG_DEBUG, "ZOOM_resultset_create r = %p", r);
 474     r->refcount = 1;
 475     r->size = 0;
 476     r->odr = odr_createmem (ODR_ENCODE);
 477     r->start = 0;
 478     r->piggyback = 1;
 479     r->setname = 0;
 480     r->count = 0;
 481     r->record_cache = 0;
 482     r->r_sort_spec = 0;
 483     r->z_query = 0;
 484     r->search = 0;
 485     r->connection = 0;
 486     r->next = 0;
 487     return r;
 488 }
 489
 490 ZOOM_API(ZOOM_resultset)
 491 ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
 492 {
 493     ZOOM_resultset r;
 494     ZOOM_query s = ZOOM_query_create();
 495
 496     ZOOM_query_prefix (s, q);
 497
 498     r = ZOOM_connection_search (c, s);
 499     ZOOM_query_destroy (s);
 500     return r;
 501 }
 502
 503 ZOOM_API(ZOOM_resultset)
 504 ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
 505 {
 506     ZOOM_resultset r = ZOOM_resultset_create ();
 507     ZOOM_task task;
 508     const char *cp;
 509
 510     r->r_sort_spec = q->sort_spec;
 511     r->z_query = q->z_query;
 512     r->search = q;
 513
 514     r->options = ZOOM_options_create_with_parent(c->options);
 515
 516     r->start = ZOOM_options_get_int(r->options, "start", 0);
 517     r->count = ZOOM_options_get_int(r->options, "count", 0);
 518     r->piggyback = ZOOM_options_get_bool (r->options, "piggyback", 1);
 519     cp = ZOOM_options_get (r->options, "setname");
 520     if (cp)
 521         r->setname = xstrdup (cp);
 522
 523     r->connection = c;
 524
 525     r->next = c->resultsets;
 526     c->resultsets = r;
 527
 528     task = ZOOM_connection_add_task (c, ZOOM_TASK_SEARCH);
 529     task->u.search.resultset = r;
 530     ZOOM_resultset_addref (r);
 531
 532     (q->refcount)++;
 533
 534     if (!c->async)
 535     {
 536         while (ZOOM_event (1, &c))
 537             ;
 538     }
 539     return r;
 540 }
 541
 542 ZOOM_API(void)
 543 ZOOM_resultset_destroy(ZOOM_resultset r)
 544 {
 545     if (!r)
 546         return;
 547     (r->refcount)--;
 548     yaz_log (LOG_DEBUG, "ZOOM_resultset_destroy r = %p count=%d",
 549              r, r->refcount);
 550     if (r->refcount == 0)
 551     {
 552         ZOOM_record_cache rc;
 553
 554         for (rc = r->record_cache; rc; rc = rc->next)
 555             if (rc->rec.wrbuf_marc)
 556                 wrbuf_free (rc->rec.wrbuf_marc, 1);
 557         if (r->connection)
 558         {
 559             /* remove ourselves from the resultsets in connection */
 560             ZOOM_resultset *rp = &r->connection->resultsets;
 561             while (1)
 562             {
 563                 assert (*rp);   /* we must be in this list!! */
 564                 if (*rp == r)
 565                 {   /* OK, we're here - take us out of it */
 566                     *rp = (*rp)->next;
 567                     break;
 568                 }
 569                 rp = &(*rp)->next;
 570             }
 571         }
 572         ZOOM_query_destroy (r->search);
 573         ZOOM_options_destroy (r->options);
 574         odr_destroy (r->odr);
 575         xfree (r->setname);
 576         xfree (r);
 577     }
 578 }
 579
 580 ZOOM_API(size_t)
 581 ZOOM_resultset_size (ZOOM_resultset r)
 582 {
 583     return r->size;
 584 }
 585
 586 static void do_close (ZOOM_connection c)
 587 {
 588     if (c->cs)
 589         cs_close(c->cs);
 590     c->cs = 0;
 591     c->mask = 0;
 592     c->state = STATE_IDLE;
 593 }
 594
 595 static void ZOOM_resultset_retrieve (ZOOM_resultset r,
 596                                      int force_sync, int start, int count)
 597 {
 598     ZOOM_task task;
 599     ZOOM_connection c;
 600
 601     if (!r)
 602         return;
 603     c = r->connection;
 604     if (!c)
 605         return;
 606     task = ZOOM_connection_add_task (c, ZOOM_TASK_RETRIEVE);
 607     task->u.retrieve.resultset = r;
 608     task->u.retrieve.start = start;
 609     task->u.retrieve.count = count;
 610
 611     ZOOM_resultset_addref (r);
 612
 613     if (!r->connection->async || force_sync)
 614         while (r->connection && ZOOM_event (1, &r->connection))
 615             ;
 616 }
 617
 618 ZOOM_API(void)
 619 ZOOM_resultset_records (ZOOM_resultset r, ZOOM_record *recs,
 620                         size_t start, size_t count)
 621 {
 622     int force_present = 0;
 623
 624     if (!r)
 625         return ;
 626     if (count && recs)
 627         force_present = 1;
 628     ZOOM_resultset_retrieve (r, force_present, start, count);
 629     if (force_present)
 630     {
 631         size_t i;
 632         for (i = 0; i< count; i++)
 633             recs[i] = ZOOM_resultset_record_immediate (r, i+start);
 634     }
 635 }
 636
 637 static zoom_ret do_connect (ZOOM_connection c)
 638 {
 639     void *add;
 640     const char *effective_host;
 641
 642     if (c->proxy)
 643         effective_host = c->proxy;
 644     else
 645         effective_host = c->host_port;
 646
 647     yaz_log (LOG_DEBUG, "do_connect host=%s", effective_host);
 648
 649     assert (!c->cs);
 650
 651     if (memcmp(c->host_port, "http:", 5) == 0)
 652     {
 653 #if HAVE_GSOAP
 654         c->soap = soap_new();
 655         c->soap->namespaces = srw_namespaces;
 656 #else
 657         c->state = STATE_IDLE;
 658         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
 659 #endif
 660     }
 661     else
 662     {
 663         c->cs = cs_create_host (effective_host, 0, &add);
 664
 665         if (c->cs)
 666         {
 667             int ret = cs_connect (c->cs, add);
 668             if (ret == 0)
 669             {
 670                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
 671                 ZOOM_connection_put_event(c, event);
 672                 ZOOM_connection_send_init(c);
 673                 c->state = STATE_ESTABLISHED;
 674                 return zoom_pending;
 675             }
 676             else if (ret > 0)
 677             {
 678                 c->state = STATE_CONNECTING;
 679                 c->mask = ZOOM_SELECT_EXCEPT;
 680                 if (c->cs->io_pending & CS_WANT_WRITE)
 681                     c->mask += ZOOM_SELECT_WRITE;
 682                 if (c->cs->io_pending & CS_WANT_READ)
 683                     c->mask += ZOOM_SELECT_READ;
 684                 return zoom_pending;
 685             }
 686         }
 687         c->state = STATE_IDLE;
 688         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, effective_host);
 689     }
 690     return zoom_complete;
 691 }
 692
 693 int z3950_connection_socket(ZOOM_connection c)
 694 {
 695     if (c->cs)
 696         return cs_fileno(c->cs);
 697     return -1;
 698 }
 699
 700 int z3950_connection_mask(ZOOM_connection c)
 701 {
 702     if (c->cs)
 703         return c->mask;
 704     return 0;
 705 }
 706
 707 static void otherInfo_attach (ZOOM_connection c, Z_APDU *a, ODR out)
 708 {
 709     int i;
 710     for (i = 0; i<200; i++)
 711     {
 712         size_t len;
 713         Z_OtherInformation **oi;
 714         char buf[80];
 715         const char *val;
 716         const char *cp;
 717         int oidval;
 718
 719         sprintf (buf, "otherInfo%d", i);
 720         val = ZOOM_options_get (c->options, buf);
 721         if (!val)
 722             break;
 723         cp = strchr (val, ':');
 724         if (!cp)
 725             continue;
 726         len = cp - val;
 727         if (len >= sizeof(buf))
 728             len = sizeof(buf)-1;
 729         memcpy (buf, val, len);
 730         buf[len] = '\0';
 731         oidval = oid_getvalbyname (buf);
 732         if (oidval == VAL_NONE)
 733             continue;
 734
 735         yaz_oi_APDU(a, &oi);
 736         yaz_oi_set_string_oidval(oi, out, oidval, 1, cp+1);
 737     }
 738 }
 739
 740 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
 741 {
 742     assert (a);
 743     if (c->cookie_out)
 744     {
 745         Z_OtherInformation **oi;
 746         yaz_oi_APDU(a, &oi);
 747         yaz_oi_set_string_oidval(oi, out, VAL_COOKIE, 1, c->cookie_out);
 748     }
 749     if (c->client_IP)
 750     {
 751         Z_OtherInformation **oi;
 752         yaz_oi_APDU(a, &oi);
 753         yaz_oi_set_string_oidval(oi, out, VAL_CLIENT_IP, 1, c->client_IP);
 754     }
 755     otherInfo_attach (c, a, out);
 756     if (!z_APDU(out, &a, 0, 0))
 757     {
 758         FILE *outf = fopen("/tmp/apdu.txt", "a");
 759         if (a && outf)
 760         {
 761             ODR odr_pr = odr_createmem(ODR_PRINT);
 762             fprintf (outf, "a=%p\n", a);
 763             odr_setprint(odr_pr, outf);
 764             z_APDU(odr_pr, &a, 0, 0);
 765             odr_destroy(odr_pr);
 766         }
 767         yaz_log (LOG_DEBUG, "encoding failed");
 768         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
 769         odr_reset(out);
 770         return -1;
 771     }
 772
 773     return 0;
 774 }
 775
 776 static zoom_ret send_APDU (ZOOM_connection c, Z_APDU *a)
 777 {
 778     ZOOM_Event event;
 779     assert (a);
 780     if (encode_APDU(c, a, c->odr_out))
 781         return zoom_complete;
 782     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
 783     event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
 784     ZOOM_connection_put_event (c, event);
 785     odr_reset(c->odr_out);
 786     return do_write (c);
 787 }
 788
 789 /* returns 1 if PDU was sent OK (still pending )
 790            0 if PDU was not sent OK (nothing to wait for)
 791 */
 792
 793 static zoom_ret ZOOM_connection_send_init (ZOOM_connection c)
 794 {
 795     const char *impname;
 796     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
 797     Z_InitRequest *ireq = apdu->u.initRequest;
 798     Z_IdAuthentication *auth = (Z_IdAuthentication *)
 799         odr_malloc(c->odr_out, sizeof(*auth));
 800     const char *auth_groupId = ZOOM_options_get (c->options, "group");
 801     const char *auth_userId = ZOOM_options_get (c->options, "user");
 802     const char *auth_password = ZOOM_options_get (c->options, "pass");
 803
 804     ODR_MASK_SET(ireq->options, Z_Options_search);
 805     ODR_MASK_SET(ireq->options, Z_Options_present);
 806     ODR_MASK_SET(ireq->options, Z_Options_scan);
 807     ODR_MASK_SET(ireq->options, Z_Options_sort);
 808     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
 809     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
 810
 811     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
 812     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
 813     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
 814
 815     impname = ZOOM_options_get (c->options, "implementationName");
 816     ireq->implementationName =
 817         (char *) odr_malloc (c->odr_out, 15 + (impname ? strlen(impname) : 0));
 818     strcpy (ireq->implementationName, "");
 819     if (impname)
 820     {
 821         strcat (ireq->implementationName, impname);
 822         strcat (ireq->implementationName, "/");
 823     }
 824     strcat (ireq->implementationName, "ZOOM-C/YAZ");
 825
 826     *ireq->maximumRecordSize =
 827         ZOOM_options_get_int (c->options, "maximumRecordSize", 1024*1024);
 828     *ireq->preferredMessageSize =
 829         ZOOM_options_get_int (c->options, "preferredMessageSize", 1024*1024);
 830
 831     if (auth_groupId || auth_password)
 832     {
 833         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
 834         int i = 0;
 835         pass->groupId = 0;
 836         if (auth_groupId && *auth_groupId)
 837         {
 838             pass->groupId = (char *)
 839                 odr_malloc(c->odr_out, strlen(auth_groupId)+1);
 840             strcpy(pass->groupId, auth_groupId);
 841             i++;
 842         }
 843         pass->userId = 0;
 844         if (auth_userId && *auth_userId)
 845         {
 846             pass->userId = (char *)
 847                 odr_malloc(c->odr_out, strlen(auth_userId)+1);
 848             strcpy(pass->userId, auth_userId);
 849             i++;
 850         }
 851         pass->password = 0;
 852         if (auth_password && *auth_password)
 853         {
 854             pass->password = (char *)
 855                 odr_malloc(c->odr_out, strlen(auth_password)+1);
 856             strcpy(pass->password, auth_password);
 857             i++;
 858         }
 859         if (i)
 860         {
 861             auth->which = Z_IdAuthentication_idPass;
 862             auth->u.idPass = pass;
 863             ireq->idAuthentication = auth;
 864         }
 865     }
 866     else if (auth_userId)
 867     {
 868         auth->which = Z_IdAuthentication_open;
 869         auth->u.open = (char *)
 870             odr_malloc(c->odr_out, strlen(auth_userId)+1);
 871         strcpy(auth->u.open, auth_userId);
 872         ireq->idAuthentication = auth;
 873     }
 874     if (c->proxy)
 875         yaz_oi_set_string_oidval(&ireq->otherInfo, c->odr_out,
 876                                  VAL_PROXY, 1, c->host_port);
 877     if (c->charset||c->lang)
 878     {
 879         Z_OtherInformation **oi;
 880         Z_OtherInformationUnit *oi_unit;
 881
 882         yaz_oi_APDU(apdu, &oi);
 883
 884         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
 885         {
 886             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
 887
 888             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
 889             oi_unit->information.externallyDefinedInfo =
 890                 yaz_set_proposal_charneg
 891                 (c->odr_out,
 892                  (const char **)&c->charset, (c->charset) ? 1:0,
 893                  (const char **)&c->lang, (c->lang) ? 1:0, 1);
 894         }
 895     }
 896     assert (apdu);
 897     return send_APDU (c, apdu);
 898 }
 899
 900 static zoom_ret ZOOM_connection_send_search (ZOOM_connection c)
 901 {
 902     ZOOM_resultset r;
 903     int lslb, ssub, mspn;
 904     const char *syntax;
 905     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
 906     Z_SearchRequest *search_req = apdu->u.searchRequest;
 907     const char *elementSetName;
 908     const char *smallSetElementSetName;
 909     const char *mediumSetElementSetName;
 910     const char *schema;
 911
 912     assert (c->tasks);
 913     assert (c->tasks->which == ZOOM_TASK_SEARCH);
 914
 915     r = c->tasks->u.search.resultset;
 916
 917     elementSetName =
 918         ZOOM_options_get (r->options, "elementSetName");
 919     smallSetElementSetName  =
 920         ZOOM_options_get (r->options, "smallSetElementSetName");
 921     mediumSetElementSetName =
 922         ZOOM_options_get (r->options, "mediumSetElementSetName");
 923     schema =
 924         ZOOM_options_get (r->options, "schema");
 925
 926     if (!smallSetElementSetName)
 927         smallSetElementSetName = elementSetName;
 928
 929     if (!mediumSetElementSetName)
 930         mediumSetElementSetName = elementSetName;
 931
 932     assert (r);
 933     assert (r->z_query);
 934
 935     /* prepare query for the search request */
 936     search_req->query = r->z_query;
 937
 938     search_req->databaseNames =
 939         set_DatabaseNames (c, r->options, &search_req->num_databaseNames);
 940
 941     /* get syntax (no need to provide unless piggyback is in effect) */
 942     syntax = ZOOM_options_get (r->options, "preferredRecordSyntax");
 943
 944     lslb = ZOOM_options_get_int (r->options, "largeSetLowerBound", -1);
 945     ssub = ZOOM_options_get_int (r->options, "smallSetUpperBound", -1);
 946     mspn = ZOOM_options_get_int (r->options, "mediumSetPresentNumber", -1);
 947     if (lslb != -1 && ssub != -1 && mspn != -1)
 948     {
 949         /* So're a Z39.50 expert? Let's hope you don't do sort */
 950         *search_req->largeSetLowerBound = lslb;
 951         *search_req->smallSetUpperBound = ssub;
 952         *search_req->mediumSetPresentNumber = mspn;
 953     }
 954     else if (r->start == 0 && r->count > 0
 955              && r->piggyback && !r->r_sort_spec && !schema)
 956     {
 957         /* Regular piggyback - do it unless we're going to do sort */
 958         *search_req->largeSetLowerBound = 2000000000;
 959         *search_req->smallSetUpperBound = 0;
 960         *search_req->mediumSetPresentNumber = r->count;
 961         smallSetElementSetName = 0;
 962     }
 963     else
 964     {
 965         /* non-piggyback. Need not provide elementsets or syntaxes .. */
 966         smallSetElementSetName = 0;
 967         mediumSetElementSetName = 0;
 968         syntax = 0;
 969     }
 970     if (smallSetElementSetName && *smallSetElementSetName)
 971     {
 972         Z_ElementSetNames *esn = (Z_ElementSetNames *)
 973             odr_malloc (c->odr_out, sizeof(*esn));
 974
 975         esn->which = Z_ElementSetNames_generic;
 976         esn->u.generic = odr_strdup (c->odr_out, smallSetElementSetName);
 977         search_req->smallSetElementSetNames = esn;
 978     }
 979     if (mediumSetElementSetName && *mediumSetElementSetName)
 980     {
 981         Z_ElementSetNames *esn = (Z_ElementSetNames *)
 982             odr_malloc (c->odr_out, sizeof(*esn));
 983
 984         esn->which = Z_ElementSetNames_generic;
 985         esn->u.generic = odr_strdup (c->odr_out, mediumSetElementSetName);
 986         search_req->mediumSetElementSetNames = esn;
 987     }
 988     if (syntax)
 989         search_req->preferredRecordSyntax =
 990             yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
 991
 992     if (!r->setname)
 993     {
 994         if (c->support_named_resultsets)
 995         {
 996             char setname[14];
 997             int ord;
 998             /* find the lowest unused ordinal so that we re-use
 999                result sets on the server. */
1000             for (ord = 1; ; ord++)
1001             {
1002                 ZOOM_resultset rp;
1003                 sprintf (setname, "%d", ord);
1004                 for (rp = c->resultsets; rp; rp = rp->next)
1005                     if (rp->setname && !strcmp (rp->setname, setname))
1006                         break;
1007                 if (!rp)
1008                     break;
1009             }
1010             r->setname = xstrdup (setname);
1011             yaz_log (LOG_DEBUG, "allocating set %s", r->setname);
1012         }
1013         else
1014             r->setname = xstrdup ("default");
1015         ZOOM_options_set (r->options, "setname", r->setname);
1016     }
1017     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1018     /* send search request */
1019     return send_APDU (c, apdu);
1020 }
1021
1022 static void response_diag (ZOOM_connection c, Z_DiagRec *p)
1023 {
1024     int oclass;
1025     Z_DefaultDiagFormat *r;
1026     char *addinfo = 0;
1027
1028     xfree (c->addinfo);
1029     c->addinfo = 0;
1030     if (p->which != Z_DiagRec_defaultFormat)
1031     {
1032         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1033         return;
1034     }
1035     r = p->u.defaultFormat;
1036     c->diagset = yaz_z3950oid_to_str(r->diagnosticSetId, &oclass);
1037
1038     switch (r->which)
1039     {
1040     case Z_DefaultDiagFormat_v2Addinfo:
1041         addinfo = r->u.v2Addinfo;
1042         break;
1043     case Z_DefaultDiagFormat_v3Addinfo:
1044         addinfo = r->u.v3Addinfo;
1045         break;
1046     }
1047     if (addinfo)
1048         c->addinfo = xstrdup (addinfo);
1049     c->error = *r->condition;
1050 }
1051
1052 ZOOM_API(ZOOM_record)
1053 ZOOM_record_clone (ZOOM_record srec)
1054 {
1055     char *buf;
1056     int size;
1057     ODR odr_enc;
1058     ZOOM_record nrec;
1059
1060     odr_enc = odr_createmem(ODR_ENCODE);
1061     if (!z_NamePlusRecord (odr_enc, &srec->npr, 0, 0))
1062         return 0;
1063     buf = odr_getbuf (odr_enc, &size, 0);
1064
1065     nrec = (ZOOM_record) xmalloc (sizeof(*nrec));
1066     nrec->odr = odr_createmem(ODR_DECODE);
1067     nrec->wrbuf_marc = 0;
1068     odr_setbuf (nrec->odr, buf, size, 0);
1069     z_NamePlusRecord (nrec->odr, &nrec->npr, 0, 0);
1070
1071     odr_destroy (odr_enc);
1072     return nrec;
1073 }
1074
1075 ZOOM_API(ZOOM_record)
1076 ZOOM_resultset_record_immediate (ZOOM_resultset s,size_t pos)
1077 {
1078     return record_cache_lookup (s, pos);
1079 }
1080
1081 ZOOM_API(ZOOM_record)
1082 ZOOM_resultset_record (ZOOM_resultset r, size_t pos)
1083 {
1084     ZOOM_resultset_retrieve (r, 1, pos, 1);
1085     return ZOOM_resultset_record_immediate (r, pos);
1086 }
1087
1088 ZOOM_API(void)
1089 ZOOM_record_destroy (ZOOM_record rec)
1090 {
1091     if (!rec)
1092         return;
1093     if (rec->wrbuf_marc)
1094         wrbuf_free (rec->wrbuf_marc, 1);
1095     odr_destroy (rec->odr);
1096     xfree (rec);
1097 }
1098
1099 ZOOM_API(const char *)
1100 ZOOM_record_get (ZOOM_record rec, const char *type, int *len)
1101 {
1102     Z_NamePlusRecord *npr;
1103
1104     if (len)
1105         *len = 0; /* default return */
1106
1107     if (!rec)
1108         return 0;
1109     npr = rec->npr;
1110     if (!npr)
1111         return 0;
1112     if (!strcmp (type, "database"))
1113     {
1114         if (len)
1115             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
1116         return npr->databaseName;
1117     }
1118     else if (!strcmp (type, "syntax"))
1119     {
1120         const char *desc = 0;
1121         if (npr->which == Z_NamePlusRecord_databaseRecord)
1122         {
1123             Z_External *r = (Z_External *) npr->u.databaseRecord;
1124             oident *ent = oid_getentbyoid(r->direct_reference);
1125             if (ent)
1126                 desc = ent->desc;
1127         }
1128         if (!desc)
1129             desc = "none";
1130         if (len)
1131             *len = strlen(desc);
1132         return desc;
1133     }
1134     else if (!strcmp (type, "render") &&
1135              npr->which == Z_NamePlusRecord_databaseRecord)
1136     {
1137         Z_External *r = (Z_External *) npr->u.databaseRecord;
1138         oident *ent = oid_getentbyoid(r->direct_reference);
1139
1140         if (r->which == Z_External_sutrs)
1141         {
1142             if (len) *len = r->u.sutrs->len;
1143             return (const char *) r->u.sutrs->buf;
1144         }
1145         else if (r->which == Z_External_octet)
1146         {
1147             yaz_marc_t mt;
1148             switch (ent->value)
1149             {
1150             case VAL_SOIF:
1151             case VAL_HTML:
1152             case VAL_SUTRS:
1153                 break;
1154             case VAL_TEXT_XML:
1155             case VAL_APPLICATION_XML:
1156                 break;
1157             default:
1158                 if (!rec->wrbuf_marc)
1159                     rec->wrbuf_marc = wrbuf_alloc();
1160
1161                 mt = yaz_marc_create();
1162                 wrbuf_rewind (rec->wrbuf_marc);
1163                 if (yaz_marc_decode_wrbuf (
1164                         mt, (const char *) r->u.octet_aligned->buf,
1165                         r->u.octet_aligned->len,
1166                         rec->wrbuf_marc) > 0)
1167                 {
1168                     if (len)
1169                         *len = wrbuf_len(rec->wrbuf_marc);
1170                     yaz_marc_destroy(mt);
1171                     return wrbuf_buf(rec->wrbuf_marc);
1172                 }
1173                 yaz_marc_destroy(mt);
1174             }
1175             if (len)
1176                 *len = r->u.octet_aligned->len;
1177             return (const char *) r->u.octet_aligned->buf;
1178         }
1179         else if (r->which == Z_External_grs1)
1180         {
1181             if (!rec->wrbuf_marc)
1182                 rec->wrbuf_marc = wrbuf_alloc();
1183             wrbuf_rewind (rec->wrbuf_marc);
1184             yaz_display_grs1(rec->wrbuf_marc, r->u.grs1, 0);
1185             if (len)
1186                 *len = wrbuf_len(rec->wrbuf_marc);
1187             return wrbuf_buf(rec->wrbuf_marc);
1188         }
1189         return 0;
1190     }
1191     else if (npr->which == Z_NamePlusRecord_databaseRecord &&
1192              (!strcmp (type, "xml") || !strcmp(type, "oai")))
1193     {
1194         Z_External *r = (Z_External *) npr->u.databaseRecord;
1195         oident *ent = oid_getentbyoid(r->direct_reference);
1196
1197         if (r->which == Z_External_sutrs)
1198         {
1199             if (len) *len = r->u.sutrs->len;
1200             return (const char *) r->u.sutrs->buf;
1201         }
1202         else if (r->which == Z_External_octet)
1203         {
1204             yaz_marc_t mt;
1205             int marc_decode_type = YAZ_MARC_MARCXML;
1206
1207             if (!strcmp(type, "oai"))
1208                 marc_decode_type = YAZ_MARC_OAIMARC;
1209             switch (ent->value)
1210             {
1211             case VAL_SOIF:
1212             case VAL_HTML:
1213             case VAL_SUTRS:
1214                 break;
1215             case VAL_TEXT_XML:
1216             case VAL_APPLICATION_XML:
1217                 break;
1218             default:
1219                 if (!rec->wrbuf_marc)
1220                     rec->wrbuf_marc = wrbuf_alloc();
1221                 wrbuf_rewind (rec->wrbuf_marc);
1222                 mt = yaz_marc_create();
1223
1224                 yaz_marc_xml(mt, YAZ_MARC_MARCXML);
1225                 if (yaz_marc_decode_wrbuf (
1226                         mt, (const char *) r->u.octet_aligned->buf,
1227                         r->u.octet_aligned->len,
1228                         rec->wrbuf_marc) > 0)
1229                 {
1230                     if (len)
1231                         *len = wrbuf_len(rec->wrbuf_marc);
1232                     yaz_marc_destroy(mt);
1233                     return wrbuf_buf(rec->wrbuf_marc);
1234                 }
1235                 yaz_marc_destroy(mt);
1236             }
1237             if (len) *len = r->u.octet_aligned->len;
1238             return (const char *) r->u.octet_aligned->buf;
1239         }
1240         else if (r->which == Z_External_grs1)
1241         {
1242             if (len) *len = 5;
1243             return "GRS-1";
1244         }
1245         return 0;
1246     }
1247     else if (!strcmp (type, "raw"))
1248     {
1249         if (npr->which == Z_NamePlusRecord_databaseRecord)
1250         {
1251             Z_External *r = (Z_External *) npr->u.databaseRecord;
1252
1253             if (r->which == Z_External_sutrs)
1254             {
1255                 if (len) *len = r->u.sutrs->len;
1256                 return (const char *) r->u.sutrs->buf;
1257             }
1258             else if (r->which == Z_External_octet)
1259             {
1260                 if (len) *len = r->u.octet_aligned->len;
1261                 return (const char *) r->u.octet_aligned->buf;
1262             }
1263             else /* grs-1, explain, ... */
1264             {
1265                 if (len) *len = -1;
1266                 return (const char *) npr->u.databaseRecord;
1267             }
1268         }
1269         return 0;
1270     }
1271     else if (!strcmp (type, "ext"))
1272     {
1273         if (npr->which == Z_NamePlusRecord_databaseRecord)
1274             return (const char *) npr->u.databaseRecord;
1275         return 0;
1276     }
1277     return 0;
1278 }
1279
1280 static void record_cache_add (ZOOM_resultset r, Z_NamePlusRecord *npr, int pos)
1281 {
1282     ZOOM_record_cache rc;
1283     const char *elementSetName =
1284         ZOOM_resultset_option_get (r, "elementSetName");
1285     const char *syntax =
1286         ZOOM_resultset_option_get (r, "preferredRecordSyntax");
1287
1288     for (rc = r->record_cache; rc; rc = rc->next)
1289     {
1290         if (pos == rc->pos)
1291         {
1292             if ((!elementSetName && !rc->elementSetName)
1293                 || (elementSetName && rc->elementSetName &&
1294                     !strcmp (elementSetName, rc->elementSetName)))
1295             {
1296                 if ((!syntax && !rc->syntax)
1297                     || (syntax && rc->syntax &&
1298                         !strcmp (syntax, rc->syntax)))
1299                 {
1300                     /* not destroying rc->npr (it's handled by nmem )*/
1301                     rc->rec.npr = npr;
1302                     /* keeping wrbuf_marc too */
1303                     return;
1304                 }
1305             }
1306         }
1307     }
1308     rc = (ZOOM_record_cache) odr_malloc (r->odr, sizeof(*rc));
1309     rc->rec.npr = npr;
1310     rc->rec.odr = 0;
1311     rc->rec.wrbuf_marc = 0;
1312     if (elementSetName)
1313         rc->elementSetName = odr_strdup (r->odr, elementSetName);
1314     else
1315         rc->elementSetName = 0;
1316
1317     if (syntax)
1318         rc->syntax = odr_strdup (r->odr, syntax);
1319     else
1320         rc->syntax = 0;
1321
1322     rc->pos = pos;
1323     rc->next = r->record_cache;
1324     r->record_cache = rc;
1325 }
1326
1327 static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos)
1328 {
1329     ZOOM_record_cache rc;
1330     const char *elementSetName =
1331         ZOOM_resultset_option_get (r, "elementSetName");
1332     const char *syntax =
1333         ZOOM_resultset_option_get (r, "preferredRecordSyntax");
1334
1335     for (rc = r->record_cache; rc; rc = rc->next)
1336     {
1337         if (pos == rc->pos)
1338         {
1339             if ((!elementSetName && !rc->elementSetName)
1340                 || (elementSetName && rc->elementSetName &&
1341                     !strcmp (elementSetName, rc->elementSetName)))
1342             {
1343                 if ((!syntax && !rc->syntax)
1344                     || (syntax && rc->syntax &&
1345                         !strcmp (syntax, rc->syntax)))
1346                     return &rc->rec;
1347             }
1348         }
1349     }
1350     return 0;
1351 }
1352
1353 static void handle_records (ZOOM_connection c, Z_Records *sr,
1354                             int present_phase)
1355 {
1356     ZOOM_resultset resultset;
1357
1358     if (!c->tasks)
1359         return ;
1360     switch (c->tasks->which)
1361     {
1362     case ZOOM_TASK_SEARCH:
1363         resultset = c->tasks->u.search.resultset;
1364         break;
1365     case ZOOM_TASK_RETRIEVE:
1366         resultset = c->tasks->u.retrieve.resultset;
1367         break;
1368     default:
1369         return;
1370     }
1371     if (sr && sr->which == Z_Records_NSD)
1372     {
1373         Z_DiagRec dr, *dr_p = &dr;
1374         dr.which = Z_DiagRec_defaultFormat;
1375         dr.u.defaultFormat = sr->u.nonSurrogateDiagnostic;
1376
1377         response_diag (c, dr_p);
1378     }
1379     else if (sr && sr->which == Z_Records_multipleNSD)
1380     {
1381         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
1382             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
1383         else
1384             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1385     }
1386     else
1387     {
1388         if (resultset->count + resultset->start > resultset->size)
1389             resultset->count = resultset->size - resultset->start;
1390         if (resultset->count < 0)
1391             resultset->count = 0;
1392         if (sr && sr->which == Z_Records_DBOSD)
1393         {
1394             int i;
1395             NMEM nmem = odr_extract_mem (c->odr_in);
1396             Z_NamePlusRecordList *p =
1397                 sr->u.databaseOrSurDiagnostics;
1398             for (i = 0; i<p->num_records; i++)
1399             {
1400                 record_cache_add (resultset, p->records[i],
1401                                   i+ resultset->start);
1402             }
1403             /* transfer our response to search_nmem .. we need it later */
1404             nmem_transfer (resultset->odr->mem, nmem);
1405             nmem_destroy (nmem);
1406             if (present_phase && p->num_records == 0)
1407             {
1408                 /* present response and we didn't get any records! */
1409                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1410             }
1411         }
1412         else if (present_phase)
1413         {
1414             /* present response and we didn't get any records! */
1415             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1416         }
1417     }
1418 }
1419
1420 static void handle_present_response (ZOOM_connection c, Z_PresentResponse *pr)
1421 {
1422     handle_records (c, pr->records, 1);
1423 }
1424
1425 static void handle_search_response (ZOOM_connection c, Z_SearchResponse *sr)
1426 {
1427     ZOOM_resultset resultset;
1428
1429     yaz_log (LOG_DEBUG, "got search response");
1430
1431     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
1432         return ;
1433
1434     resultset = c->tasks->u.search.resultset;
1435
1436     resultset->size = *sr->resultCount;
1437     handle_records (c, sr->records, 0);
1438 }
1439
1440 static void sort_response (ZOOM_connection c, Z_SortResponse *res)
1441 {
1442     if (res->diagnostics && res->num_diagnostics > 0)
1443         response_diag (c, res->diagnostics[0]);
1444 }
1445
1446 static int scan_response (ZOOM_connection c, Z_ScanResponse *res)
1447 {
1448     NMEM nmem = odr_extract_mem (c->odr_in);
1449     ZOOM_scanset scan;
1450
1451     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
1452         return 0;
1453     scan = c->tasks->u.scan.scan;
1454
1455     if (res->entries && res->entries->nonsurrogateDiagnostics)
1456         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
1457     scan->scan_response = res;
1458     nmem_transfer (scan->odr->mem, nmem);
1459     if (res->stepSize)
1460         ZOOM_options_set_int (scan->options, "stepSize", *res->stepSize);
1461     if (res->positionOfTerm)
1462         ZOOM_options_set_int (scan->options, "position", *res->positionOfTerm);
1463     if (res->scanStatus)
1464         ZOOM_options_set_int (scan->options, "scanStatus", *res->scanStatus);
1465     if (res->numberOfEntriesReturned)
1466         ZOOM_options_set_int (scan->options, "number",
1467                               *res->numberOfEntriesReturned);
1468     nmem_destroy (nmem);
1469     return 1;
1470 }
1471
1472 static zoom_ret send_sort (ZOOM_connection c)
1473 {
1474     ZOOM_resultset  resultset;
1475
1476     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
1477         return zoom_complete;
1478
1479     resultset = c->tasks->u.search.resultset;
1480
1481     if (c->error)
1482     {
1483         resultset->r_sort_spec = 0;
1484         return zoom_complete;
1485     }
1486     if (resultset->r_sort_spec)
1487     {
1488         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
1489         Z_SortRequest *req = apdu->u.sortRequest;
1490
1491         req->num_inputResultSetNames = 1;
1492         req->inputResultSetNames = (Z_InternationalString **)
1493             odr_malloc (c->odr_out, sizeof(*req->inputResultSetNames));
1494         req->inputResultSetNames[0] =
1495             odr_strdup (c->odr_out, resultset->setname);
1496         req->sortedResultSetName = odr_strdup (c->odr_out, resultset->setname);
1497         req->sortSequence = resultset->r_sort_spec;
1498         resultset->r_sort_spec = 0;
1499         return send_APDU (c, apdu);
1500     }
1501     return zoom_complete;
1502 }
1503
1504 static zoom_ret send_present (ZOOM_connection c)
1505 {
1506     Z_APDU *apdu = 0;
1507     Z_PresentRequest *req = 0;
1508     int i = 0;
1509     const char *syntax = 0;
1510     const char *elementSetName = 0;
1511     const char *schema = 0;
1512     ZOOM_resultset  resultset;
1513
1514     if (!c->tasks)
1515         return zoom_complete;
1516
1517     switch (c->tasks->which)
1518     {
1519     case ZOOM_TASK_SEARCH:
1520         resultset = c->tasks->u.search.resultset;
1521         break;
1522     case ZOOM_TASK_RETRIEVE:
1523         resultset = c->tasks->u.retrieve.resultset;
1524         resultset->start = c->tasks->u.retrieve.start;
1525         resultset->count = c->tasks->u.retrieve.count;
1526
1527         if (resultset->start >= resultset->size)
1528             return zoom_complete;
1529         if (resultset->start + resultset->count > resultset->size)
1530             resultset->count = resultset->size - resultset->start;
1531         break;
1532     default:
1533         return zoom_complete;
1534     }
1535
1536     syntax = ZOOM_resultset_option_get (resultset, "preferredRecordSyntax");
1537     elementSetName = ZOOM_resultset_option_get (resultset, "elementSetName");
1538     schema = ZOOM_resultset_option_get (resultset, "schema");
1539
1540     if (c->error)                  /* don't continue on error */
1541         return zoom_complete;
1542     if (resultset->start < 0)
1543         return zoom_complete;
1544     for (i = 0; i<resultset->count; i++)
1545     {
1546         ZOOM_record rec =
1547             record_cache_lookup (resultset, i + resultset->start);
1548         if (!rec)
1549             break;
1550     }
1551     if (i == resultset->count)
1552         return zoom_complete;
1553
1554     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
1555     req = apdu->u.presentRequest;
1556
1557     resultset->start += i;
1558     resultset->count -= i;
1559     *req->resultSetStartPoint = resultset->start + 1;
1560     *req->numberOfRecordsRequested = resultset->count;
1561     assert (*req->numberOfRecordsRequested > 0);
1562
1563     if (syntax && *syntax)
1564         req->preferredRecordSyntax =
1565             yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
1566
1567     if (schema && *schema)
1568     {
1569         Z_RecordComposition *compo = (Z_RecordComposition *)
1570             odr_malloc (c->odr_out, sizeof(*compo));
1571
1572         req->recordComposition = compo;
1573         compo->which = Z_RecordComp_complex;
1574         compo->u.complex = (Z_CompSpec *)
1575             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
1576         compo->u.complex->selectAlternativeSyntax = (bool_t *)
1577             odr_malloc(c->odr_out, sizeof(bool_t));
1578         *compo->u.complex->selectAlternativeSyntax = 0;
1579
1580         compo->u.complex->generic = (Z_Specification *)
1581             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
1582
1583         compo->u.complex->generic->which = Z_Specification_oid;
1584         compo->u.complex->generic->u.oid = (Odr_oid *)
1585             yaz_str_to_z3950oid (c->odr_out, CLASS_SCHEMA, schema);
1586
1587         if (!compo->u.complex->generic->u.oid)
1588         {
1589             /* OID wasn't a schema! Try record syntax instead. */
1590
1591             compo->u.complex->generic->u.oid = (Odr_oid *)
1592                 yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, schema);
1593         }
1594         if (elementSetName && *elementSetName)
1595         {
1596             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
1597                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
1598             compo->u.complex->generic->elementSpec->which =
1599                 Z_ElementSpec_elementSetName;
1600             compo->u.complex->generic->elementSpec->u.elementSetName =
1601                 odr_strdup (c->odr_out, elementSetName);
1602         }
1603         else
1604             compo->u.complex->generic->elementSpec = 0;
1605         compo->u.complex->num_dbSpecific = 0;
1606         compo->u.complex->dbSpecific = 0;
1607         compo->u.complex->num_recordSyntax = 0;
1608         compo->u.complex->recordSyntax = 0;
1609     }
1610     else if (elementSetName && *elementSetName)
1611     {
1612         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1613             odr_malloc (c->odr_out, sizeof(*esn));
1614         Z_RecordComposition *compo = (Z_RecordComposition *)
1615             odr_malloc (c->odr_out, sizeof(*compo));
1616
1617         esn->which = Z_ElementSetNames_generic;
1618         esn->u.generic = odr_strdup (c->odr_out, elementSetName);
1619         compo->which = Z_RecordComp_simple;
1620         compo->u.simple = esn;
1621         req->recordComposition = compo;
1622     }
1623     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
1624     return send_APDU (c, apdu);
1625 }
1626
1627 ZOOM_API(ZOOM_scanset)
1628 ZOOM_connection_scan (ZOOM_connection c, const char *start)
1629 {
1630     ZOOM_scanset scan = (ZOOM_scanset) xmalloc (sizeof(*scan));
1631
1632     scan->connection = c;
1633     scan->odr = odr_createmem (ODR_DECODE);
1634     scan->options = ZOOM_options_create_with_parent (c->options);
1635     scan->refcount = 1;
1636     scan->scan_response = 0;
1637
1638     if ((scan->termListAndStartPoint =
1639          p_query_scan(scan->odr, PROTO_Z3950, &scan->attributeSet,
1640                       start)))
1641     {
1642         ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_SCAN);
1643         task->u.scan.scan = scan;
1644
1645         (scan->refcount)++;
1646         if (!c->async)
1647         {
1648             while (ZOOM_event (1, &c))
1649                 ;
1650         }
1651     }
1652     return scan;
1653 }
1654
1655 ZOOM_API(void)
1656 ZOOM_scanset_destroy (ZOOM_scanset scan)
1657 {
1658     if (!scan)
1659         return;
1660     (scan->refcount)--;
1661     if (scan->refcount == 0)
1662     {
1663         odr_destroy (scan->odr);
1664
1665         ZOOM_options_destroy (scan->options);
1666         xfree (scan);
1667     }
1668 }
1669
1670 static zoom_ret send_package (ZOOM_connection c)
1671 {
1672     ZOOM_Event event;
1673     if (!c->tasks)
1674         return zoom_complete;
1675     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
1676
1677     event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
1678     ZOOM_connection_put_event (c, event);
1679
1680     return do_write_ex (c, c->tasks->u.package->buf_out,
1681                         c->tasks->u.package->len_out);
1682 }
1683
1684 static zoom_ret send_scan (ZOOM_connection c)
1685 {
1686     ZOOM_scanset scan;
1687     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
1688     Z_ScanRequest *req = apdu->u.scanRequest;
1689     if (!c->tasks)
1690         return zoom_complete;
1691     assert (c->tasks->which == ZOOM_TASK_SCAN);
1692     scan = c->tasks->u.scan.scan;
1693
1694     req->termListAndStartPoint = scan->termListAndStartPoint;
1695     req->attributeSet = scan->attributeSet;
1696
1697     *req->numberOfTermsRequested =
1698         ZOOM_options_get_int(scan->options, "number", 10);
1699
1700     req->preferredPositionInResponse =
1701         odr_intdup (c->odr_out,
1702                     ZOOM_options_get_int(scan->options, "position", 1));
1703
1704     req->stepSize =
1705         odr_intdup (c->odr_out,
1706                     ZOOM_options_get_int(scan->options, "stepSize", 0));
1707
1708     req->databaseNames = set_DatabaseNames (c, scan->options,
1709                                             &req->num_databaseNames);
1710
1711     return send_APDU (c, apdu);
1712 }
1713
1714 ZOOM_API(size_t)
1715 ZOOM_scanset_size (ZOOM_scanset scan)
1716 {
1717     if (!scan || !scan->scan_response || !scan->scan_response->entries)
1718         return 0;
1719     return scan->scan_response->entries->num_entries;
1720 }
1721
1722 ZOOM_API(const char *)
1723 ZOOM_scanset_term (ZOOM_scanset scan, size_t pos,
1724                                int *occ, int *len)
1725 {
1726     const char *term = 0;
1727     size_t noent = ZOOM_scanset_size (scan);
1728     Z_ScanResponse *res = scan->scan_response;
1729
1730     *len = 0;
1731     *occ = 0;
1732     if (pos >= noent)
1733         return 0;
1734     if (res->entries->entries[pos]->which == Z_Entry_termInfo)
1735     {
1736         Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
1737
1738         if (t->term->which == Z_Term_general)
1739         {
1740             term = (const char *) t->term->u.general->buf;
1741             *len = t->term->u.general->len;
1742         }
1743         *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
1744     }
1745     return term;
1746 }
1747
1748 ZOOM_API(const char *)
1749 ZOOM_scanset_option_get (ZOOM_scanset scan, const char *key)
1750 {
1751     return ZOOM_options_get (scan->options, key);
1752 }
1753
1754 ZOOM_API(void)
1755 ZOOM_scanset_option_set (ZOOM_scanset scan, const char *key,
1756                               const char *val)
1757 {
1758     ZOOM_options_set (scan->options, key, val);
1759 }
1760
1761 static Z_APDU *create_es_package (ZOOM_package p, int type)
1762 {
1763     const char *str;
1764     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
1765     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
1766
1767     *req->function = Z_ExtendedServicesRequest_create;
1768
1769     str = ZOOM_options_get(p->options, "package-name");
1770     if (str && *str)
1771         req->packageName = nmem_strdup (p->odr_out->mem, str);
1772
1773     str = ZOOM_options_get(p->options, "user-id");
1774     if (str)
1775         req->userId = nmem_strdup (p->odr_out->mem, str);
1776
1777     req->packageType = yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
1778                                               type);
1779
1780     str = ZOOM_options_get(p->options, "function");
1781     if (str)
1782     {
1783         if (!strcmp (str, "create"))
1784             *req->function = 1;
1785         if (!strcmp (str, "delete"))
1786             *req->function = 2;
1787         if (!strcmp (str, "modify"))
1788             *req->function = 3;
1789     }
1790     return apdu;
1791 }
1792
1793 static const char *ill_array_lookup (void *clientData, const char *idx)
1794 {
1795     ZOOM_package p = (ZOOM_package) clientData;
1796     return ZOOM_options_get (p->options, idx+4);
1797 }
1798
1799 static Z_External *encode_ill_request (ZOOM_package p)
1800 {
1801     ODR out = p->odr_out;
1802     ILL_Request *req;
1803     Z_External *r = 0;
1804     struct ill_get_ctl ctl;
1805
1806     ctl.odr = p->odr_out;
1807     ctl.clientData = p;
1808     ctl.f = ill_array_lookup;
1809
1810     req = ill_get_ILLRequest(&ctl, "ill", 0);
1811
1812     if (!ill_Request (out, &req, 0, 0))
1813     {
1814         int ill_request_size;
1815         char *ill_request_buf = odr_getbuf (out, &ill_request_size, 0);
1816         if (ill_request_buf)
1817             odr_setbuf (out, ill_request_buf, ill_request_size, 1);
1818         return 0;
1819     }
1820     else
1821     {
1822         oident oid;
1823         int illRequest_size = 0;
1824         char *illRequest_buf = odr_getbuf (out, &illRequest_size, 0);
1825
1826         oid.proto = PROTO_GENERAL;
1827         oid.oclass = CLASS_GENERAL;
1828         oid.value = VAL_ISO_ILL_1;
1829
1830         r = (Z_External *) odr_malloc (out, sizeof(*r));
1831         r->direct_reference = odr_oiddup(out,oid_getoidbyent(&oid));
1832         r->indirect_reference = 0;
1833         r->descriptor = 0;
1834         r->which = Z_External_single;
1835
1836         r->u.single_ASN1_type = (Odr_oct *)
1837             odr_malloc (out, sizeof(*r->u.single_ASN1_type));
1838         r->u.single_ASN1_type->buf = (unsigned char*)
1839             odr_malloc (out, illRequest_size);
1840         r->u.single_ASN1_type->len = illRequest_size;
1841         r->u.single_ASN1_type->size = illRequest_size;
1842         memcpy (r->u.single_ASN1_type->buf, illRequest_buf, illRequest_size);
1843     }
1844     return r;
1845 }
1846
1847 static Z_ItemOrder *encode_item_order(ZOOM_package p)
1848 {
1849     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc (p->odr_out, sizeof(*req));
1850     const char *str;
1851
1852     req->which=Z_IOItemOrder_esRequest;
1853     req->u.esRequest = (Z_IORequest *)
1854         odr_malloc(p->odr_out,sizeof(Z_IORequest));
1855
1856     /* to keep part ... */
1857     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
1858         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
1859     req->u.esRequest->toKeep->supplDescription = 0;
1860     req->u.esRequest->toKeep->contact = (Z_IOContact *)
1861         odr_malloc (p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
1862
1863     str = ZOOM_options_get(p->options, "contact-name");
1864     req->u.esRequest->toKeep->contact->name = str ?
1865         nmem_strdup (p->odr_out->mem, str) : 0;
1866
1867     str = ZOOM_options_get(p->options, "contact-phone");
1868     req->u.esRequest->toKeep->contact->phone = str ?
1869         nmem_strdup (p->odr_out->mem, str) : 0;
1870
1871     str = ZOOM_options_get(p->options, "contact-email");
1872     req->u.esRequest->toKeep->contact->email = str ?
1873         nmem_strdup (p->odr_out->mem, str) : 0;
1874
1875     req->u.esRequest->toKeep->addlBilling = 0;
1876
1877     /* not to keep part ... */
1878     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
1879         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
1880
1881     req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
1882         odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
1883
1884     str = ZOOM_options_get(p->options, "itemorder-setname");
1885     if (!str)
1886         str = "default";
1887     req->u.esRequest->notToKeep->resultSetItem->resultSetId =
1888         nmem_strdup (p->odr_out->mem, str);
1889     req->u.esRequest->notToKeep->resultSetItem->item =
1890         (int *) odr_malloc(p->odr_out, sizeof(int));
1891
1892     str = ZOOM_options_get(p->options, "itemorder-item");
1893     *req->u.esRequest->notToKeep->resultSetItem->item =
1894         (str ? atoi(str) : 1);
1895
1896     req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
1897
1898     return req;
1899 }
1900
1901 ZOOM_API(void)
1902     ZOOM_package_send (ZOOM_package p, const char *type)
1903 {
1904     Z_APDU *apdu = 0;
1905     ZOOM_connection c;
1906     if (!p)
1907         return;
1908     c = p->connection;
1909     odr_reset (p->odr_out);
1910     xfree (p->buf_out);
1911     p->buf_out = 0;
1912     if (!strcmp(type, "itemorder"))
1913     {
1914         Z_External *r;
1915         apdu = create_es_package (p, VAL_ITEMORDER);
1916         if (apdu)
1917         {
1918             r = (Z_External *) odr_malloc (p->odr_out, sizeof(*r));
1919
1920             r->direct_reference =
1921                 yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
1922                                        VAL_ITEMORDER);
1923             r->descriptor = 0;
1924             r->which = Z_External_itemOrder;
1925             r->indirect_reference = 0;
1926             r->u.itemOrder = encode_item_order (p);
1927
1928             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
1929         }
1930     }
1931     if (apdu)
1932     {
1933         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
1934         {
1935             char *buf;
1936
1937             ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_PACKAGE);
1938             task->u.package = p;
1939             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
1940             p->buf_out = (char *) xmalloc (p->len_out);
1941             memcpy (p->buf_out, buf, p->len_out);
1942
1943             (p->refcount)++;
1944             if (!c->async)
1945             {
1946                 while (ZOOM_event (1, &c))
1947                     ;
1948             }
1949         }
1950     }
1951 }
1952
1953 ZOOM_API(ZOOM_package)
1954     ZOOM_connection_package (ZOOM_connection c, ZOOM_options options)
1955 {
1956     ZOOM_package p = (ZOOM_package) xmalloc (sizeof(*p));
1957
1958     p->connection = c;
1959     p->odr_out = odr_createmem (ODR_ENCODE);
1960     p->options = ZOOM_options_create_with_parent2 (options, c->options);
1961     p->refcount = 1;
1962     p->buf_out = 0;
1963     p->len_out = 0;
1964     return p;
1965 }
1966
1967 ZOOM_API(void)
1968     ZOOM_package_destroy(ZOOM_package p)
1969 {
1970     if (!p)
1971         return;
1972     (p->refcount)--;
1973     if (p->refcount == 0)
1974     {
1975         odr_destroy (p->odr_out);
1976         xfree (p->buf_out);
1977
1978         ZOOM_options_destroy (p->options);
1979         xfree (p);
1980     }
1981 }
1982
1983 ZOOM_API(const char *)
1984 ZOOM_package_option_get (ZOOM_package p, const char *key)
1985 {
1986     return ZOOM_options_get (p->options, key);
1987 }
1988
1989 #if HAVE_GSOAP
1990 static zoom_ret ZOOM_srw_search(ZOOM_connection c, ZOOM_resultset r,
1991                                 const char *cql)
1992 {
1993     int ret;
1994     struct xcql__operandType *xQuery = 0;
1995     char *action = 0;
1996     xsd__integer startRecord = r->start + 1;
1997     xsd__integer maximumRecord = r->count;
1998     const char *schema = ZOOM_resultset_option_get (r, "schema");
1999     struct zs__searchRetrieveResponse res;
2000     xsd__string recordPacking = 0;
2001
2002
2003     if (!schema)
2004         schema = "http://www.loc.gov/marcxml/";
2005
2006     ret = soap_call_zs__searchRetrieveRequest(c->soap, c->host_port,
2007                                               action,
2008                                               &r->z_query->u.type_104->u.cql,
2009                                               xQuery,
2010                                               0, 0,
2011                                               &startRecord, &maximumRecord,
2012                                               (char **) &schema,
2013                                               &recordPacking,
2014                                               &res);
2015     if (ret != SOAP_OK)
2016     {
2017         const char **s = soap_faultdetail(c->soap);
2018         xfree (c->addinfo);
2019         c->addinfo = 0;
2020         if (s && *s)
2021             c->addinfo = xstrdup(*s);
2022         c->diagset = "SOAP";
2023         c->error = ret;
2024     }
2025     else
2026     {
2027         if (res.diagnostics.__sizeDiagnostics > 0)
2028         {
2029             int i = 0;
2030             xfree (c->addinfo);
2031             c->addinfo = 0;
2032             c->diagset = "SRW";
2033             c->error = res.diagnostics.diagnostic[i]->code;
2034             if (res.diagnostics.diagnostic[i]->details)
2035                 c->addinfo =
2036                     xstrdup(res.diagnostics.diagnostic[i]->details);
2037
2038         }
2039         else
2040         {
2041             int i;
2042             r->size = res.numberOfRecords;
2043             if (res.resultSetId)
2044                 r->setname = xstrdup(res.resultSetId);
2045             for (i = 0; i < res.records.__sizeRecords; i++)
2046             {
2047                 char *rdata = res.records.record[i]->recordData;
2048                 if (rdata)
2049                 {
2050                     Z_NamePlusRecord *npr =
2051                         odr_malloc(r->odr, sizeof(*npr));
2052                     Z_External *ext =
2053                         z_ext_record(r->odr, VAL_TEXT_XML,
2054                                      rdata, strlen(rdata));
2055                     npr->databaseName = 0;
2056                     npr->which = Z_NamePlusRecord_databaseRecord;
2057                     npr->u.databaseRecord = ext;
2058                     record_cache_add (r, npr, r->start + i);
2059                 }
2060             }
2061         }
2062     }
2063     return zoom_complete;
2064 }
2065 #endif
2066
2067 ZOOM_API(void)
2068 ZOOM_package_option_set (ZOOM_package p, const char *key,
2069                               const char *val)
2070 {
2071     ZOOM_options_set (p->options, key, val);
2072 }
2073
2074 static int ZOOM_connection_exec_task (ZOOM_connection c)
2075 {
2076     ZOOM_task task = c->tasks;
2077     zoom_ret ret = zoom_complete;
2078
2079     if (!task)
2080     {
2081         yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task task=<null>");
2082         return 0;
2083     }
2084     yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task type=%d run=%d",
2085              task->which, task->running);
2086     if (c->error != ZOOM_ERROR_NONE)
2087     {
2088         yaz_log (LOG_DEBUG, "remove tasks because of error = %d", c->error);
2089         ZOOM_connection_remove_tasks (c);
2090         return 0;
2091     }
2092     if (task->running)
2093     {
2094         yaz_log (LOG_DEBUG, "task already running");
2095         return 0;
2096     }
2097     task->running = 1;
2098     ret = zoom_complete;
2099     if (c->soap)
2100     {
2101 #if HAVE_GSOAP
2102         ZOOM_resultset resultset;
2103         switch (task->which)
2104         {
2105         case ZOOM_TASK_SEARCH:
2106             resultset = c->tasks->u.search.resultset;
2107             if (resultset->z_query &&
2108                 resultset->z_query->which == Z_Query_type_104
2109                 && resultset->z_query->u.type_104->which == Z_External_CQL)
2110                 ret = ZOOM_srw_search(c, resultset,
2111                                       resultset->z_query->u.type_104->u.cql);
2112             break;
2113         case ZOOM_TASK_RETRIEVE:
2114             resultset = c->tasks->u.retrieve.resultset;
2115             resultset->start = c->tasks->u.retrieve.start;
2116             resultset->count = c->tasks->u.retrieve.count;
2117
2118             if (resultset->start >= resultset->size)
2119                 return zoom_complete;
2120             if (resultset->start + resultset->count > resultset->size)
2121                 resultset->count = resultset->size - resultset->start;
2122
2123             if (resultset->z_query &&
2124                 resultset->z_query->which == Z_Query_type_104
2125                 && resultset->z_query->u.type_104->which == Z_External_CQL)
2126                 ret = ZOOM_srw_search(c, resultset,
2127                                       resultset->z_query->u.type_104->u.cql);
2128             break;
2129         }
2130 #else
2131         ;
2132 #endif
2133     }
2134     else if (c->cs || task->which == ZOOM_TASK_CONNECT)
2135     {
2136         switch (task->which)
2137         {
2138         case ZOOM_TASK_SEARCH:
2139             ret = ZOOM_connection_send_search(c);
2140             break;
2141         case ZOOM_TASK_RETRIEVE:
2142             ret = send_present (c);
2143             break;
2144         case ZOOM_TASK_CONNECT:
2145             ret = do_connect(c);
2146             break;
2147         case ZOOM_TASK_SCAN:
2148             ret = send_scan(c);
2149             break;
2150         case ZOOM_TASK_PACKAGE:
2151             ret = send_package(c);
2152             break;
2153         }
2154     }
2155     else
2156     {
2157         yaz_log (LOG_DEBUG, "remove tasks because no connection exist");
2158         ZOOM_connection_remove_tasks (c);
2159     }
2160     if (ret == zoom_complete)
2161     {
2162         yaz_log (LOG_DEBUG, "task removed (complete)");
2163         ZOOM_connection_remove_task (c);
2164         return 0;
2165     }
2166     yaz_log (LOG_DEBUG, "task pending");
2167     return 1;
2168 }
2169
2170 static zoom_ret send_sort_present (ZOOM_connection c)
2171 {
2172     zoom_ret r = send_sort (c);
2173     if (r == zoom_complete)
2174         r = send_present (c);
2175     return r;
2176 }
2177
2178 static int es_response (ZOOM_connection c,
2179                         Z_ExtendedServicesResponse *res)
2180 {
2181     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
2182         return 0;
2183     if (res->diagnostics && res->num_diagnostics > 0)
2184         response_diag(c, res->diagnostics[0]);
2185     if (res->taskPackage &&
2186         res->taskPackage->which == Z_External_extendedService)
2187     {
2188         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
2189         Odr_oct *id = taskPackage->targetReference;
2190
2191         if (id)
2192             ZOOM_options_setl (c->tasks->u.package->options,
2193                                "targetReference", (char*) id->buf, id->len);
2194     }
2195     return 1;
2196 }
2197
2198
2199 static void handle_apdu (ZOOM_connection c, Z_APDU *apdu)
2200 {
2201     Z_InitResponse *initrs;
2202
2203     c->mask = 0;
2204     yaz_log (LOG_DEBUG, "handle_apdu type=%d", apdu->which);
2205     switch(apdu->which)
2206     {
2207     case Z_APDU_initResponse:
2208         initrs = apdu->u.initResponse;
2209         ZOOM_connection_option_set(c, "targetImplementationId",
2210                                    initrs->implementationId ?
2211                                    initrs->implementationId : "");
2212         ZOOM_connection_option_set(c, "targetImplementationName",
2213                                    initrs->implementationName ?
2214                                    initrs->implementationName : "");
2215         ZOOM_connection_option_set(c, "targetImplementationVersion",
2216                                    initrs->implementationVersion ?
2217                                    initrs->implementationVersion : "");
2218         if (!*initrs->result)
2219         {
2220             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0);
2221         }
2222         else
2223         {
2224             char *cookie =
2225                 yaz_oi_get_string_oidval (&apdu->u.initResponse->otherInfo,
2226                                           VAL_COOKIE, 1, 0);
2227             xfree (c->cookie_in);
2228             c->cookie_in = 0;
2229             if (cookie)
2230                 c->cookie_in = xstrdup(cookie);
2231             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
2232                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
2233                 c->support_named_resultsets = 1;
2234             if (c->tasks)
2235             {
2236                 assert (c->tasks->which == ZOOM_TASK_CONNECT);
2237                 ZOOM_connection_remove_task (c);
2238             }
2239             ZOOM_connection_exec_task (c);
2240         }
2241         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
2242         {
2243             NMEM tmpmem = nmem_create();
2244             Z_CharSetandLanguageNegotiation *p =
2245                 yaz_get_charneg_record(initrs->otherInfo);
2246
2247             if (p)
2248             {
2249                 char *charset=NULL, *lang=NULL;
2250                 int sel;
2251
2252                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
2253                 yaz_log(LOG_DEBUG, "Target accepted: charset %s, "
2254                         "language %s, select %d",
2255                         charset ? charset : "none", lang ? lang : "none", sel);
2256                 if (charset)
2257                     ZOOM_connection_option_set (c, "negotiation-charset",
2258                                                 charset);
2259                 if (lang)
2260                     ZOOM_connection_option_set (c, "negotiation-lang",
2261                                                 lang);
2262                 nmem_destroy(tmpmem);
2263             }
2264         }
2265         break;
2266     case Z_APDU_searchResponse:
2267         handle_search_response (c, apdu->u.searchResponse);
2268         if (send_sort_present (c) == zoom_complete)
2269             ZOOM_connection_remove_task (c);
2270         break;
2271     case Z_APDU_presentResponse:
2272         handle_present_response (c, apdu->u.presentResponse);
2273         if (send_present (c) == zoom_complete)
2274             ZOOM_connection_remove_task (c);
2275         break;
2276     case Z_APDU_sortResponse:
2277         sort_response (c, apdu->u.sortResponse);
2278         if (send_present (c) == zoom_complete)
2279             ZOOM_connection_remove_task (c);
2280         break;
2281     case Z_APDU_scanResponse:
2282         scan_response (c, apdu->u.scanResponse);
2283         ZOOM_connection_remove_task (c);
2284         break;
2285     case Z_APDU_extendedServicesResponse:
2286         es_response (c, apdu->u.extendedServicesResponse);
2287         ZOOM_connection_remove_task (c);
2288         break;
2289     case Z_APDU_close:
2290         if (c->reconnect_ok)
2291         {
2292             do_close(c);
2293             c->tasks->running = 0;
2294             ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
2295         }
2296         else
2297         {
2298             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, 0);
2299             do_close(c);
2300         }
2301         break;
2302     default:
2303         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2304         do_close(c);
2305     }
2306 }
2307
2308 static int do_read (ZOOM_connection c)
2309 {
2310     int r;
2311     Z_APDU *apdu;
2312     ZOOM_Event event;
2313
2314     event = ZOOM_Event_create (ZOOM_EVENT_RECV_DATA);
2315     ZOOM_connection_put_event (c, event);
2316
2317     yaz_log (LOG_DEBUG, "do_read len=%d", c->len_in);
2318
2319     r = cs_get (c->cs, &c->buf_in, &c->len_in);
2320     if (r == 1)
2321         return 0;
2322     if (r <= 0)
2323     {
2324         if (c->reconnect_ok)
2325         {
2326             do_close (c);
2327             c->reconnect_ok = 0;
2328             yaz_log (LOG_DEBUG, "reconnect read");
2329             c->tasks->running = 0;
2330             ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
2331         }
2332         else
2333         {
2334             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, 0);
2335             do_close (c);
2336         }
2337     }
2338     else
2339     {
2340         ZOOM_Event event;
2341         odr_reset (c->odr_in);
2342         odr_setbuf (c->odr_in, c->buf_in, r, 0);
2343         event = ZOOM_Event_create (ZOOM_EVENT_RECV_APDU);
2344         ZOOM_connection_put_event (c, event);
2345         if (!z_APDU (c->odr_in, &apdu, 0, 0))
2346         {
2347             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2348             do_close (c);
2349         }
2350         else
2351             handle_apdu (c, apdu);
2352         c->reconnect_ok = 0;
2353     }
2354     return 1;
2355 }
2356
2357 static zoom_ret do_write_ex (ZOOM_connection c, char *buf_out, int len_out)
2358 {
2359     int r;
2360     ZOOM_Event event;
2361
2362     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
2363     ZOOM_connection_put_event (c, event);
2364
2365     yaz_log (LOG_DEBUG, "do_write_ex len=%d", len_out);
2366     if ((r=cs_put (c->cs, buf_out, len_out)) < 0)
2367     {
2368         if (c->reconnect_ok)
2369         {
2370             do_close (c);
2371             c->reconnect_ok = 0;
2372             yaz_log (LOG_DEBUG, "reconnect write");
2373             c->tasks->running = 0;
2374             ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
2375             return zoom_complete;
2376         }
2377         if (c->state == STATE_CONNECTING)
2378             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, 0);
2379         else
2380             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, 0);
2381         do_close (c);
2382         return zoom_complete;
2383     }
2384     else if (r == 1)
2385     {
2386         c->mask = ZOOM_SELECT_EXCEPT;
2387         if (c->cs->io_pending & CS_WANT_WRITE)
2388             c->mask += ZOOM_SELECT_WRITE;
2389         if (c->cs->io_pending & CS_WANT_READ)
2390             c->mask += ZOOM_SELECT_READ;
2391         yaz_log (LOG_DEBUG, "do_write_ex 1 mask=%d", c->mask);
2392     }
2393     else
2394     {
2395         c->mask = ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT;
2396         yaz_log (LOG_DEBUG, "do_write_ex 2 mask=%d", c->mask);
2397     }
2398     return zoom_pending;
2399 }
2400
2401 static zoom_ret do_write(ZOOM_connection c)
2402 {
2403     return do_write_ex (c, c->buf_out, c->len_out);
2404 }
2405
2406
2407 ZOOM_API(const char *)
2408 ZOOM_connection_option_get (ZOOM_connection c, const char *key)
2409 {
2410     return ZOOM_options_get (c->options, key);
2411 }
2412
2413 ZOOM_API(void)
2414 ZOOM_connection_option_set (ZOOM_connection c, const char *key,
2415                                   const char *val)
2416 {
2417     ZOOM_options_set (c->options, key, val);
2418 }
2419
2420 ZOOM_API(const char *)
2421 ZOOM_resultset_option_get (ZOOM_resultset r, const char *key)
2422 {
2423     return ZOOM_options_get (r->options, key);
2424 }
2425
2426 ZOOM_API(void)
2427 ZOOM_resultset_option_set (ZOOM_resultset r, const char *key,
2428                                   const char *val)
2429 {
2430     ZOOM_options_set (r->options, key, val);
2431 }
2432
2433
2434 ZOOM_API(int)
2435 ZOOM_connection_errcode (ZOOM_connection c)
2436 {
2437     return ZOOM_connection_error (c, 0, 0);
2438 }
2439
2440 ZOOM_API(const char *)
2441 ZOOM_connection_errmsg (ZOOM_connection c)
2442 {
2443     const char *msg;
2444     ZOOM_connection_error (c, &msg, 0);
2445     return msg;
2446 }
2447
2448 ZOOM_API(const char *)
2449 ZOOM_connection_addinfo (ZOOM_connection c)
2450 {
2451     const char *addinfo;
2452     ZOOM_connection_error (c, 0, &addinfo);
2453     return addinfo;
2454 }
2455
2456 ZOOM_API(const char *)
2457 ZOOM_diag_str (int error)
2458 {
2459     switch (error)
2460     {
2461     case ZOOM_ERROR_NONE:
2462         return "No error";
2463     case ZOOM_ERROR_CONNECT:
2464         return "Connect failed";
2465     case ZOOM_ERROR_MEMORY:
2466         return "Out of memory";
2467     case ZOOM_ERROR_ENCODE:
2468         return "Encoding failed";
2469     case ZOOM_ERROR_DECODE:
2470         return "Decoding failed";
2471     case ZOOM_ERROR_CONNECTION_LOST:
2472         return "Connection lost";
2473     case ZOOM_ERROR_INIT:
2474         return "Init rejected";
2475     case ZOOM_ERROR_INTERNAL:
2476         return "Internal failure";
2477     case ZOOM_ERROR_TIMEOUT:
2478         return "Timeout";
2479     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
2480         return "Unsupported protocol";
2481     default:
2482         return diagbib1_str (error);
2483     }
2484 }
2485
2486 ZOOM_API(int)
2487 ZOOM_connection_error_x (ZOOM_connection c, const char **cp,
2488                          const char **addinfo, const char **diagset)
2489 {
2490     int error = c->error;
2491     if (cp)
2492     {
2493         if (!c->diagset)
2494             *cp = ZOOM_diag_str(error);
2495 #if HAVE_GSOAP
2496         else if (!strcmp(c->diagset, "SRW"))
2497             *cp = yaz_srw_diag_str(error);
2498         else if (c->soap && !strcmp(c->diagset, "SOAP"))
2499         {
2500             const char **s = soap_faultstring(c->soap);
2501             if (s && *s)
2502                 *cp = *s;
2503             else
2504                 *cp = "unknown";
2505         }
2506 #endif
2507         else
2508             *cp = ZOOM_diag_str(error);
2509     }
2510     if (addinfo)
2511         *addinfo = c->addinfo ? c->addinfo : "";
2512     if (diagset)
2513         *diagset = c->diagset ? c->diagset : "";
2514     return c->error;
2515 }
2516
2517 ZOOM_API(int)
2518 ZOOM_connection_error (ZOOM_connection c, const char **cp,
2519                        const char **addinfo)
2520 {
2521     return ZOOM_connection_error_x(c, cp, addinfo, 0);
2522 }
2523
2524 static int ZOOM_connection_do_io(ZOOM_connection c, int mask)
2525 {
2526     ZOOM_Event event = 0;
2527     int r = cs_look(c->cs);
2528     yaz_log (LOG_DEBUG, "ZOOM_connection_do_io c=%p mask=%d cs_look=%d",
2529              c, mask, r);
2530
2531     if (r == CS_NONE)
2532     {
2533         event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
2534         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, 0);
2535         do_close (c);
2536         ZOOM_connection_put_event (c, event);
2537     }
2538     else if (r == CS_CONNECT)
2539     {
2540         int ret;
2541         event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
2542
2543         ret = cs_rcvconnect (c->cs);
2544         yaz_log (LOG_DEBUG, "cs_rcvconnect returned %d", ret);
2545         if (ret == 1)
2546         {
2547             c->mask = ZOOM_SELECT_EXCEPT;
2548             if (c->cs->io_pending & CS_WANT_WRITE)
2549                 c->mask += ZOOM_SELECT_WRITE;
2550             if (c->cs->io_pending & CS_WANT_READ)
2551                 c->mask += ZOOM_SELECT_READ;
2552             ZOOM_connection_put_event (c, event);
2553         }
2554         else if (ret == 0)
2555         {
2556             ZOOM_connection_put_event (c, event);
2557             ZOOM_connection_send_init (c);
2558             c->state = STATE_ESTABLISHED;
2559         }
2560         else
2561         {
2562             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, 0);
2563             do_close (c);
2564             ZOOM_connection_put_event (c, event);
2565         }
2566     }
2567     else
2568     {
2569         if (mask & ZOOM_SELECT_READ)
2570             do_read (c);
2571         if (c->cs && (mask & ZOOM_SELECT_WRITE))
2572             do_write (c);
2573     }
2574     return 1;
2575 }
2576
2577 ZOOM_API(int)
2578 ZOOM_connection_last_event(ZOOM_connection cs)
2579 {
2580     if (!cs)
2581         return ZOOM_EVENT_NONE;
2582     return cs->last_event;
2583 }
2584
2585 ZOOM_API(int)
2586 ZOOM_event (int no, ZOOM_connection *cs)
2587 {
2588     int timeout = 5000;
2589 #if HAVE_SYS_POLL_H
2590     struct pollfd pollfds[1024];
2591     ZOOM_connection poll_cs[1024];
2592 #else
2593     struct timeval tv;
2594     fd_set input, output, except;
2595 #endif
2596     int i, r, nfds;
2597     int max_fd = 0;
2598
2599     for (i = 0; i<no; i++)
2600     {
2601         ZOOM_connection c = cs[i];
2602         ZOOM_Event event;
2603         if (c && (event = ZOOM_connection_get_event(c)))
2604         {
2605             ZOOM_Event_destroy (event);
2606             return i+1;
2607         }
2608     }
2609     for (i = 0; i<no; i++)
2610     {
2611         ZOOM_connection c = cs[i];
2612         ZOOM_Event event;
2613         if (c && ZOOM_connection_exec_task (c))
2614         {
2615             if ((event = ZOOM_connection_get_event(c)))
2616             {
2617                 ZOOM_Event_destroy (event);
2618                 return i+1;
2619             }
2620         }
2621     }
2622 #if HAVE_SYS_POLL_H
2623
2624 #else
2625     FD_ZERO (&input);
2626     FD_ZERO (&output);
2627     FD_ZERO (&except);
2628 #endif
2629     nfds = 0;
2630     for (i = 0; i<no; i++)
2631     {
2632         ZOOM_connection c = cs[i];
2633         int fd, mask;
2634         int this_timeout;
2635
2636         if (!c)
2637             continue;
2638         fd = z3950_connection_socket(c);
2639         mask = z3950_connection_mask(c);
2640
2641         if (fd == -1)
2642             continue;
2643         if (max_fd < fd)
2644             max_fd = fd;
2645
2646         this_timeout = ZOOM_options_get_int (c->options, "timeout", -1);
2647         if (this_timeout != -1 && this_timeout < timeout)
2648             timeout = this_timeout;
2649 #if HAVE_SYS_POLL_H
2650         if (mask)
2651         {
2652             short poll_events = 0;
2653
2654             if (mask & ZOOM_SELECT_READ)
2655                 poll_events += POLLIN;
2656             if (mask & ZOOM_SELECT_WRITE)
2657                 poll_events += POLLOUT;
2658             if (mask & ZOOM_SELECT_EXCEPT)
2659                 poll_events += POLLERR;
2660             pollfds[nfds].fd = fd;
2661             pollfds[nfds].events = poll_events;
2662             pollfds[nfds].revents = 0;
2663             poll_cs[nfds] = c;
2664             nfds++;
2665         }
2666 #else
2667         if (mask & ZOOM_SELECT_READ)
2668         {
2669             FD_SET (fd, &input);
2670             nfds++;
2671         }
2672         if (mask & ZOOM_SELECT_WRITE)
2673         {
2674             FD_SET (fd, &output);
2675             nfds++;
2676         }
2677         if (mask & ZOOM_SELECT_EXCEPT)
2678         {
2679             FD_SET (fd, &except);
2680             nfds++;
2681         }
2682 #endif
2683     }
2684     if (timeout >= 5000)
2685         timeout = 30;
2686
2687     if (!nfds)
2688         return 0;
2689
2690 #if HAVE_SYS_POLL_H
2691     r = poll (pollfds, nfds, timeout * 1000);
2692     for (i = 0; i<nfds; i++)
2693     {
2694         ZOOM_connection c = poll_cs[i];
2695         if (r && c->mask)
2696         {
2697             int mask = 0;
2698             if (pollfds[i].revents & POLLIN)
2699                 mask += ZOOM_SELECT_READ;
2700             if (pollfds[i].revents & POLLOUT)
2701                 mask += ZOOM_SELECT_WRITE;
2702             if (pollfds[i].revents & POLLERR)
2703                 mask += ZOOM_SELECT_EXCEPT;
2704             if (mask)
2705                 ZOOM_connection_do_io(c, mask);
2706         }
2707         else if (r == 0 && c->mask)
2708         {
2709             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2710             /* timeout and this connection was waiting */
2711             set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
2712             do_close (c);
2713             ZOOM_connection_put_event(c, event);
2714         }
2715     }
2716 #else
2717     tv.tv_sec = timeout;
2718     tv.tv_usec = 0;
2719     yaz_log (LOG_DEBUG, "select start");
2720     r = select (max_fd+1, &input, &output, &except, &tv);
2721     yaz_log (LOG_DEBUG, "select stop, returned r=%d", r);
2722     for (i = 0; i<no; i++)
2723     {
2724         ZOOM_connection c = cs[i];
2725         int fd, mask;
2726
2727         if (!c)
2728             continue;
2729         fd = z3950_connection_socket(c);
2730         mask = 0;
2731         if (r && c->mask)
2732         {
2733             /* no timeout and real socket */
2734             if (FD_ISSET(fd, &input))
2735                 mask += ZOOM_SELECT_READ;
2736             if (FD_ISSET(fd, &output))
2737                 mask += ZOOM_SELECT_WRITE;
2738             if (FD_ISSET(fd, &except))
2739                 mask += ZOOM_SELECT_EXCEPT;
2740             if (mask)
2741                 ZOOM_connection_do_io(c, mask);
2742         }
2743         if (r == 0 && c->mask)
2744         {
2745             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
2746             /* timeout and this connection was waiting */
2747             set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
2748             do_close (c);
2749             yaz_log (LOG_DEBUG, "timeout");
2750             ZOOM_connection_put_event(c, event);
2751         }
2752     }
2753 #endif
2754     for (i = 0; i<no; i++)
2755     {
2756         ZOOM_connection c = cs[i];
2757         ZOOM_Event event;
2758         if (c && (event = ZOOM_connection_get_event(c)))
2759         {
2760             ZOOM_Event_destroy (event);
2761             return i+1;
2762         }
2763     }
2764     return 0;
2765 }