src/zoom-c.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2010 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 #include <yaz/facet.h>
  31
  32 #include <yaz/shptr.h>
  33
  34 #if SHPTR
  35 YAZ_SHPTR_TYPE(WRBUF)
  36 #endif
  37
  38 static int log_api = 0;
  39 static int log_details = 0;
  40
  41 typedef enum {
  42     zoom_pending,
  43     zoom_complete
  44 } zoom_ret;
  45
  46 static void resultset_destroy(ZOOM_resultset r);
  47 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c);
  48 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
  49 static char *cql2pqf(ZOOM_connection c, const char *cql);
  50
  51 ZOOM_API(const char *) ZOOM_get_event_str(int event)
  52 {
  53     static const char *ar[] = {
  54         "NONE",
  55         "CONNECT",
  56         "SEND_DATA",
  57         "RECV_DATA",
  58         "TIMEOUT",
  59         "UNKNOWN",
  60         "SEND_APDU",
  61         "RECV_APDU",
  62         "RECV_RECORD",
  63         "RECV_SEARCH",
  64         "END"
  65     };
  66     return ar[event];
  67 }
  68
  69 /*
  70  * This wrapper is just for logging failed lookups.  It would be nicer
  71  * if it could cause failure when a lookup fails, but that's hard.
  72  */
  73 static Odr_oid *zoom_yaz_str_to_z3950oid(ZOOM_connection c,
  74                                      oid_class oid_class, const char *str) {
  75     Odr_oid *res = yaz_string_to_oid_odr(yaz_oid_std(), oid_class, str,
  76                                      c->odr_out);
  77     if (res == 0)
  78         yaz_log(YLOG_WARN, "%p OID lookup (%d, '%s') failed",
  79                 c, (int) oid_class, str);
  80     return res;
  81 }
  82
  83
  84 static void initlog(void)
  85 {
  86     static int log_level_initialized = 0;
  87     if (!log_level_initialized)
  88     {
  89         log_api = yaz_log_module_level("zoom");
  90         log_details = yaz_log_module_level("zoomdetails");
  91         log_level_initialized = 1;
  92     }
  93 }
  94
  95 static ZOOM_Event ZOOM_Event_create(int kind)
  96 {
  97     ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
  98     event->kind = kind;
  99     event->next = 0;
 100     event->prev = 0;
 101     yaz_log(log_details, "ZOOM_Event_create(kind=%d)", kind);
 102     return event;
 103 }
 104
 105 static void ZOOM_Event_destroy(ZOOM_Event event)
 106 {
 107     xfree(event);
 108 }
 109
 110 static void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
 111 {
 112     if (c->m_queue_back)
 113     {
 114         c->m_queue_back->prev = event;
 115         assert(c->m_queue_front);
 116     }
 117     else
 118     {
 119         assert(!c->m_queue_front);
 120         c->m_queue_front = event;
 121     }
 122     event->next = c->m_queue_back;
 123     event->prev = 0;
 124     c->m_queue_back = event;
 125 }
 126
 127 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
 128 {
 129     ZOOM_Event event = c->m_queue_front;
 130     if (!event)
 131     {
 132         c->last_event = ZOOM_EVENT_NONE;
 133         return 0;
 134     }
 135     assert(c->m_queue_back);
 136     c->m_queue_front = event->prev;
 137     if (c->m_queue_front)
 138     {
 139         assert(c->m_queue_back);
 140         c->m_queue_front->next = 0;
 141     }
 142     else
 143         c->m_queue_back = 0;
 144     c->last_event = event->kind;
 145     return event;
 146 }
 147
 148 static void ZOOM_connection_remove_events(ZOOM_connection c)
 149 {
 150     ZOOM_Event event;
 151     while ((event = ZOOM_connection_get_event(c)))
 152         ZOOM_Event_destroy(event);
 153 }
 154
 155 ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
 156 {
 157     ZOOM_Event event = c->m_queue_front;
 158
 159     return event ? event->kind : ZOOM_EVENT_NONE;
 160 }
 161
 162 void ZOOM_connection_remove_tasks(ZOOM_connection c);
 163
 164 static void set_dset_error(ZOOM_connection c, int error,
 165                            const char *dset,
 166                            const char *addinfo, const char *addinfo2)
 167 {
 168     char *cp;
 169
 170     xfree(c->addinfo);
 171     c->addinfo = 0;
 172     c->error = error;
 173     if (!c->diagset || strcmp(dset, c->diagset))
 174     {
 175         xfree(c->diagset);
 176         c->diagset = xstrdup(dset);
 177         /* remove integer part from SRW diagset .. */
 178         if ((cp = strrchr(c->diagset, '/')))
 179             *cp = '\0';
 180     }
 181     if (addinfo && addinfo2)
 182     {
 183         c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 2);
 184         strcpy(c->addinfo, addinfo);
 185         strcat(c->addinfo, addinfo2);
 186     }
 187     else if (addinfo)
 188         c->addinfo = xstrdup(addinfo);
 189     if (error != ZOOM_ERROR_NONE)
 190     {
 191         yaz_log(log_api, "%p set_dset_error %s %s:%d %s %s",
 192                 c, c->host_port ? c->host_port : "<>", dset, error,
 193                 addinfo ? addinfo : "",
 194                 addinfo2 ? addinfo2 : "");
 195         ZOOM_connection_remove_tasks(c);
 196     }
 197 }
 198
 199 static int uri_to_code(const char *uri)
 200 {
 201     int code = 0;
 202     const char *cp;
 203     if ((cp = strrchr(uri, '/')))
 204         code = atoi(cp+1);
 205     return code;
 206 }
 207
 208 #if YAZ_HAVE_XML2
 209 static void set_HTTP_error(ZOOM_connection c, int error,
 210                            const char *addinfo, const char *addinfo2)
 211 {
 212     set_dset_error(c, error, "HTTP", addinfo, addinfo2);
 213 }
 214
 215 static void set_SRU_error(ZOOM_connection c, Z_SRW_diagnostic *d)
 216 {
 217     const char *uri = d->uri;
 218     if (uri)
 219         set_dset_error(c, uri_to_code(uri), uri, d->details, 0);
 220 }
 221
 222 #endif
 223
 224
 225 static void set_ZOOM_error(ZOOM_connection c, int error,
 226                            const char *addinfo)
 227 {
 228     set_dset_error(c, error, "ZOOM", addinfo, 0);
 229 }
 230
 231 static void clear_error(ZOOM_connection c)
 232 {
 233     /*
 234      * If an error is tied to an operation then it's ok to clear: for
 235      * example, a diagnostic returned from a search is cleared by a
 236      * subsequent search.  However, problems such as Connection Lost
 237      * or Init Refused are not cleared, because they are not
 238      * recoverable: doing another search doesn't help.
 239      */
 240
 241     ZOOM_connection_remove_events(c);
 242     switch (c->error)
 243     {
 244     case ZOOM_ERROR_CONNECT:
 245     case ZOOM_ERROR_MEMORY:
 246     case ZOOM_ERROR_DECODE:
 247     case ZOOM_ERROR_CONNECTION_LOST:
 248     case ZOOM_ERROR_INIT:
 249     case ZOOM_ERROR_INTERNAL:
 250     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
 251         break;
 252     default:
 253         set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 254     }
 255 }
 256
 257 void ZOOM_connection_show_task(ZOOM_task task)
 258 {
 259     switch(task->which)
 260     {
 261     case ZOOM_TASK_SEARCH:
 262         yaz_log(YLOG_LOG, "search p=%p", task);
 263         break;
 264     case ZOOM_TASK_RETRIEVE:
 265         yaz_log(YLOG_LOG, "retrieve p=%p", task);
 266         break;
 267     case ZOOM_TASK_CONNECT:
 268         yaz_log(YLOG_LOG, "connect p=%p", task);
 269         break;
 270     case ZOOM_TASK_SCAN:
 271         yaz_log(YLOG_LOG, "scan p=%p", task);
 272         break;
 273     }
 274 }
 275
 276 void ZOOM_connection_show_tasks(ZOOM_connection c)
 277 {
 278     ZOOM_task task;
 279     yaz_log(YLOG_LOG, "connection p=%p tasks", c);
 280     for (task = c->tasks; task; task = task->next)
 281         ZOOM_connection_show_task(task);
 282 }
 283
 284 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
 285 {
 286     ZOOM_task *taskp = &c->tasks;
 287     while (*taskp)
 288         taskp = &(*taskp)->next;
 289     *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
 290     (*taskp)->running = 0;
 291     (*taskp)->which = which;
 292     (*taskp)->next = 0;
 293     clear_error(c);
 294     return *taskp;
 295 }
 296
 297 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
 298 {
 299     return c->tasks ? 0 : 1;
 300 }
 301
 302 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
 303 {
 304     ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
 305
 306     task->next = c->tasks;
 307     c->tasks = task;
 308
 309     task->running = 0;
 310     task->which = which;
 311     clear_error(c);
 312     return task;
 313 }
 314
 315 void ZOOM_connection_remove_task(ZOOM_connection c)
 316 {
 317     ZOOM_task task = c->tasks;
 318
 319     if (task)
 320     {
 321         c->tasks = task->next;
 322         switch (task->which)
 323         {
 324         case ZOOM_TASK_SEARCH:
 325             resultset_destroy(task->u.search.resultset);
 326             xfree(task->u.search.syntax);
 327             xfree(task->u.search.elementSetName);
 328             break;
 329         case ZOOM_TASK_RETRIEVE:
 330             resultset_destroy(task->u.retrieve.resultset);
 331             xfree(task->u.retrieve.syntax);
 332             xfree(task->u.retrieve.elementSetName);
 333             break;
 334         case ZOOM_TASK_CONNECT:
 335             break;
 336         case ZOOM_TASK_SCAN:
 337             ZOOM_scanset_destroy(task->u.scan.scan);
 338             break;
 339         case ZOOM_TASK_PACKAGE:
 340             ZOOM_package_destroy(task->u.package);
 341             break;
 342         case ZOOM_TASK_SORT:
 343             resultset_destroy(task->u.sort.resultset);
 344             ZOOM_query_destroy(task->u.sort.q);
 345             break;
 346         default:
 347             assert(0);
 348         }
 349         xfree(task);
 350
 351         if (!c->tasks)
 352         {
 353             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
 354             ZOOM_connection_put_event(c, event);
 355         }
 356     }
 357 }
 358
 359 void ZOOM_connection_remove_tasks(ZOOM_connection c)
 360 {
 361     while (c->tasks)
 362         ZOOM_connection_remove_task(c);
 363 }
 364
 365 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
 366                                        const char *syntax,
 367                                        const char *elementSetName);
 368
 369 ZOOM_API(ZOOM_connection)
 370     ZOOM_connection_create(ZOOM_options options)
 371 {
 372     ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
 373
 374     initlog();
 375
 376     yaz_log(log_api, "%p ZOOM_connection_create", c);
 377
 378     c->proto = PROTO_Z3950;
 379     c->cs = 0;
 380     ZOOM_connection_set_mask(c, 0);
 381     c->reconnect_ok = 0;
 382     c->state = STATE_IDLE;
 383     c->addinfo = 0;
 384     c->diagset = 0;
 385     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 386     c->buf_in = 0;
 387     c->len_in = 0;
 388     c->buf_out = 0;
 389     c->len_out = 0;
 390     c->resultsets = 0;
 391
 392     c->options = ZOOM_options_create_with_parent(options);
 393
 394     c->host_port = 0;
 395     c->path = 0;
 396     c->proxy = 0;
 397
 398     c->charset = c->lang = 0;
 399
 400     c->cookie_out = 0;
 401     c->cookie_in = 0;
 402     c->client_IP = 0;
 403     c->tasks = 0;
 404
 405     c->user = 0;
 406     c->group = 0;
 407     c->password = 0;
 408
 409     c->maximum_record_size = 0;
 410     c->preferred_message_size = 0;
 411
 412     c->odr_in = odr_createmem(ODR_DECODE);
 413     c->odr_out = odr_createmem(ODR_ENCODE);
 414     c->odr_print = 0;
 415
 416     c->async = 0;
 417     c->support_named_resultsets = 0;
 418     c->last_event = ZOOM_EVENT_NONE;
 419
 420     c->m_queue_front = 0;
 421     c->m_queue_back = 0;
 422
 423     c->sru_version = 0;
 424     c->no_redirects = 0;
 425     return c;
 426 }
 427
 428
 429 /* set database names. Take local databases (if set); otherwise
 430    take databases given in ZURL (if set); otherwise use Default */
 431 static char **set_DatabaseNames(ZOOM_connection con, ZOOM_options options,
 432                                 int *num, ODR odr)
 433 {
 434     char **databaseNames;
 435     const char *cp = ZOOM_options_get(options, "databaseName");
 436
 437     if ((!cp || !*cp) && con->host_port)
 438     {
 439         if (strncmp(con->host_port, "unix:", 5) == 0)
 440             cp = strchr(con->host_port+5, ':');
 441         else
 442             cp = strchr(con->host_port, '/');
 443         if (cp)
 444             cp++;
 445     }
 446     if (!cp)
 447         cp = "Default";
 448     nmem_strsplit(odr_getmem(odr), "+", cp,  &databaseNames, num);
 449     return databaseNames;
 450 }
 451
 452 ZOOM_API(ZOOM_connection)
 453     ZOOM_connection_new(const char *host, int portnum)
 454 {
 455     ZOOM_connection c = ZOOM_connection_create(0);
 456
 457     ZOOM_connection_connect(c, host, portnum);
 458     return c;
 459 }
 460
 461 static zoom_sru_mode get_sru_mode_from_string(const char *s)
 462 {
 463     if (!s || !*s)
 464         return zoom_sru_soap;
 465     if (!yaz_matchstr(s, "soap"))
 466         return zoom_sru_soap;
 467     else if (!yaz_matchstr(s, "get"))
 468         return zoom_sru_get;
 469     else if (!yaz_matchstr(s, "post"))
 470         return zoom_sru_post;
 471     return zoom_sru_error;
 472 }
 473
 474 ZOOM_API(void)
 475     ZOOM_connection_connect(ZOOM_connection c,
 476                             const char *host, int portnum)
 477 {
 478     const char *val;
 479     ZOOM_task task;
 480
 481     initlog();
 482
 483     yaz_log(log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
 484             c, host ? host : "null", portnum);
 485
 486     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 487     ZOOM_connection_remove_tasks(c);
 488
 489     if (c->odr_print)
 490     {
 491         odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
 492         odr_destroy(c->odr_print);
 493     }
 494     if (ZOOM_options_get_bool(c->options, "apdulog", 0))
 495     {
 496         c->odr_print = odr_createmem(ODR_PRINT);
 497         odr_setprint(c->odr_print, yaz_log_file());
 498     }
 499     else
 500         c->odr_print = 0;
 501
 502     if (c->cs)
 503     {
 504         yaz_log(log_details, "%p ZOOM_connection_connect reconnect ok", c);
 505         c->reconnect_ok = 1;
 506         return;
 507     }
 508     yaz_log(log_details, "%p ZOOM_connection_connect connect", c);
 509     xfree(c->proxy);
 510     c->proxy = 0;
 511     val = ZOOM_options_get(c->options, "proxy");
 512     if (val && *val)
 513     {
 514         yaz_log(log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
 515         c->proxy = xstrdup(val);
 516     }
 517
 518     xfree(c->charset);
 519     c->charset = 0;
 520     val = ZOOM_options_get(c->options, "charset");
 521     if (val && *val)
 522     {
 523         yaz_log(log_details, "%p ZOOM_connection_connect charset=%s", c, val);
 524         c->charset = xstrdup(val);
 525     }
 526
 527     xfree(c->lang);
 528     val = ZOOM_options_get(c->options, "lang");
 529     if (val && *val)
 530     {
 531         yaz_log(log_details, "%p ZOOM_connection_connect lang=%s", c, val);
 532         c->lang = xstrdup(val);
 533     }
 534     else
 535         c->lang = 0;
 536
 537     if (host)
 538     {
 539         xfree(c->host_port);
 540         if (portnum)
 541         {
 542             char hostn[128];
 543             sprintf(hostn, "%.80s:%d", host, portnum);
 544             c->host_port = xstrdup(hostn);
 545         }
 546         else
 547             c->host_port = xstrdup(host);
 548     }
 549
 550     {
 551         /*
 552          * If the "<scheme>:" part of the host string is preceded by one
 553          * or more comma-separated <name>=<value> pairs, these are taken
 554          * to be options to be set on the connection object.  Among other
 555          * applications, this facility can be used to embed authentication
 556          * in a host string:
 557          *          user=admin,password=secret,tcp:localhost:9999
 558          */
 559         char *remainder = c->host_port;
 560         char *pcolon = strchr(remainder, ':');
 561         char *pcomma;
 562         char *pequals;
 563         while ((pcomma = strchr(remainder, ',')) != 0 &&
 564                (pcolon == 0 || pcomma < pcolon)) {
 565             *pcomma = '\0';
 566             if ((pequals = strchr(remainder, '=')) != 0) {
 567                 *pequals = '\0';
 568                 /*printf("# setting '%s'='%s'\n", remainder, pequals+1);*/
 569                 ZOOM_connection_option_set(c, remainder, pequals+1);
 570             }
 571             remainder = pcomma+1;
 572         }
 573
 574         if (remainder != c->host_port) {
 575             xfree(c->host_port);
 576             c->host_port = xstrdup(remainder);
 577             /*printf("# reset hp='%s'\n", remainder);*/
 578         }
 579     }
 580
 581     val = ZOOM_options_get(c->options, "sru");
 582     c->sru_mode = get_sru_mode_from_string(val);
 583
 584     xfree(c->sru_version);
 585     val = ZOOM_options_get(c->options, "sru_version");
 586     c->sru_version = xstrdup(val ? val : "1.2");
 587
 588     ZOOM_options_set(c->options, "host", c->host_port);
 589
 590     xfree(c->cookie_out);
 591     c->cookie_out = 0;
 592     val = ZOOM_options_get(c->options, "cookie");
 593     if (val && *val)
 594     {
 595         yaz_log(log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
 596         c->cookie_out = xstrdup(val);
 597     }
 598
 599     xfree(c->client_IP);
 600     c->client_IP = 0;
 601     val = ZOOM_options_get(c->options, "clientIP");
 602     if (val && *val)
 603     {
 604         yaz_log(log_details, "%p ZOOM_connection_connect clientIP=%s",
 605                 c, val);
 606         c->client_IP = xstrdup(val);
 607     }
 608
 609     xfree(c->group);
 610     c->group = 0;
 611     val = ZOOM_options_get(c->options, "group");
 612     if (val && *val)
 613         c->group = xstrdup(val);
 614
 615     xfree(c->user);
 616     c->user = 0;
 617     val = ZOOM_options_get(c->options, "user");
 618     if (val && *val)
 619         c->user = xstrdup(val);
 620
 621     xfree(c->password);
 622     c->password = 0;
 623     val = ZOOM_options_get(c->options, "password");
 624     if (!val)
 625         val = ZOOM_options_get(c->options, "pass");
 626
 627     if (val && *val)
 628         c->password = xstrdup(val);
 629
 630     c->maximum_record_size =
 631         ZOOM_options_get_int(c->options, "maximumRecordSize", 1024*1024);
 632     c->preferred_message_size =
 633         ZOOM_options_get_int(c->options, "preferredMessageSize", 1024*1024);
 634
 635     c->async = ZOOM_options_get_bool(c->options, "async", 0);
 636     yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
 637
 638     task = ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 639
 640     if (!c->async)
 641     {
 642         while (ZOOM_event(1, &c))
 643             ;
 644     }
 645 }
 646
 647 ZOOM_API(ZOOM_query)
 648     ZOOM_query_create(void)
 649 {
 650     ZOOM_query s = (ZOOM_query) xmalloc(sizeof(*s));
 651
 652     yaz_log(log_details, "%p ZOOM_query_create", s);
 653     s->refcount = 1;
 654     s->z_query = 0;
 655     s->sort_spec = 0;
 656     s->odr = odr_createmem(ODR_ENCODE);
 657     s->query_string = 0;
 658
 659     return s;
 660 }
 661
 662 ZOOM_API(void)
 663     ZOOM_query_destroy(ZOOM_query s)
 664 {
 665     if (!s)
 666         return;
 667
 668     (s->refcount)--;
 669     yaz_log(log_details, "%p ZOOM_query_destroy count=%d", s, s->refcount);
 670     if (s->refcount == 0)
 671     {
 672         odr_destroy(s->odr);
 673         xfree(s);
 674     }
 675 }
 676
 677 ZOOM_API(int)
 678     ZOOM_query_prefix(ZOOM_query s, const char *str)
 679 {
 680     s->query_string = odr_strdup(s->odr, str);
 681     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 682     s->z_query->which = Z_Query_type_1;
 683     s->z_query->u.type_1 =  p_query_rpn(s->odr, str);
 684     if (!s->z_query->u.type_1)
 685     {
 686         yaz_log(log_details, "%p ZOOM_query_prefix str=%s failed", s, str);
 687         s->z_query = 0;
 688         return -1;
 689     }
 690     yaz_log(log_details, "%p ZOOM_query_prefix str=%s", s, str);
 691     return 0;
 692 }
 693
 694 ZOOM_API(int)
 695     ZOOM_query_cql(ZOOM_query s, const char *str)
 696 {
 697     Z_External *ext;
 698
 699     s->query_string = odr_strdup(s->odr, str);
 700
 701     ext = (Z_External *) odr_malloc(s->odr, sizeof(*ext));
 702     ext->direct_reference = odr_oiddup(s->odr, yaz_oid_userinfo_cql);
 703     ext->indirect_reference = 0;
 704     ext->descriptor = 0;
 705     ext->which = Z_External_CQL;
 706     ext->u.cql = s->query_string;
 707
 708     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 709     s->z_query->which = Z_Query_type_104;
 710     s->z_query->u.type_104 =  ext;
 711
 712     yaz_log(log_details, "%p ZOOM_query_cql str=%s", s, str);
 713
 714     return 0;
 715 }
 716
 717 /*
 718  * Translate the CQL string client-side into RPN which is passed to
 719  * the server.  This is useful for server's that don't themselves
 720  * support CQL, for which ZOOM_query_cql() is useless.  `conn' is used
 721  * only as a place to stash diagnostics if compilation fails; if this
 722  * information is not needed, a null pointer may be used.
 723  */
 724 ZOOM_API(int)
 725     ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
 726 {
 727     char *rpn;
 728     int ret;
 729     ZOOM_connection freeme = 0;
 730
 731     yaz_log(log_details, "%p ZOOM_query_cql2rpn str=%s conn=%p", s, str, conn);
 732     if (conn == 0)
 733         conn = freeme = ZOOM_connection_create(0);
 734
 735     rpn = cql2pqf(conn, str);
 736     if (freeme != 0)
 737         ZOOM_connection_destroy(freeme);
 738     if (rpn == 0)
 739         return -1;
 740
 741     ret = ZOOM_query_prefix(s, rpn);
 742     xfree(rpn);
 743     return ret;
 744 }
 745
 746 /*
 747  * Analogous in every way to ZOOM_query_cql2rpn(), except that there
 748  * is no analogous ZOOM_query_ccl() that just sends uninterpreted CCL
 749  * to the server, as the YAZ GFS doesn't know how to handle this.
 750  */
 751 ZOOM_API(int)
 752     ZOOM_query_ccl2rpn(ZOOM_query s, const char *str, const char *config,
 753                        int *ccl_error, const char **error_string,
 754                        int *error_pos)
 755 {
 756     int ret;
 757     struct ccl_rpn_node *rpn;
 758     CCL_bibset bibset = ccl_qual_mk();
 759
 760     if (config)
 761         ccl_qual_buf(bibset, config);
 762
 763     rpn = ccl_find_str(bibset, str, ccl_error, error_pos);
 764     if (!rpn)
 765     {
 766         *error_string = ccl_err_msg(*ccl_error);
 767         ret = -1;
 768     }
 769     else
 770     {
 771         WRBUF wr = wrbuf_alloc();
 772         ccl_pquery(wr, rpn);
 773         ccl_rpn_delete(rpn);
 774         ret = ZOOM_query_prefix(s, wrbuf_cstr(wr));
 775         wrbuf_destroy(wr);
 776     }
 777     ccl_qual_rm(&bibset);
 778     return ret;
 779 }
 780
 781 ZOOM_API(int)
 782     ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 783 {
 784     s->sort_spec = yaz_sort_spec(s->odr, criteria);
 785     if (!s->sort_spec)
 786     {
 787         yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s failed",
 788                 s, criteria);
 789         return -1;
 790     }
 791     yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s", s, criteria);
 792     return 0;
 793 }
 794
 795 static zoom_ret do_write(ZOOM_connection c);
 796
 797 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
 798 {
 799 #if ZOOM_RESULT_LISTS
 800 #else
 801     if (r->connection)
 802     {
 803         /* remove ourselves from the resultsets in connection */
 804         ZOOM_resultset *rp = &r->connection->resultsets;
 805         while (1)
 806         {
 807             assert(*rp);   /* we must be in this list!! */
 808             if (*rp == r)
 809             {   /* OK, we're here - take us out of it */
 810                 *rp = (*rp)->next;
 811                 break;
 812             }
 813             rp = &(*rp)->next;
 814         }
 815         r->connection = 0;
 816     }
 817 #endif
 818 }
 819
 820 ZOOM_API(void)
 821     ZOOM_connection_destroy(ZOOM_connection c)
 822 {
 823 #if ZOOM_RESULT_LISTS
 824     ZOOM_resultsets list;
 825 #else
 826     ZOOM_resultset r;
 827 #endif
 828     if (!c)
 829         return;
 830     yaz_log(log_api, "%p ZOOM_connection_destroy", c);
 831     if (c->cs)
 832         cs_close(c->cs);
 833
 834 #if ZOOM_RESULT_LISTS
 835     // Remove the connection's usage of resultsets
 836     list = c->resultsets;
 837     while (list) {
 838         ZOOM_resultsets removed = list;
 839         ZOOM_resultset_destroy(list->resultset);
 840         list = list->next;
 841         xfree(removed);
 842     }
 843 #else
 844     for (r = c->resultsets; r; r = r->next)
 845         r->connection = 0;
 846 #endif
 847
 848     xfree(c->buf_in);
 849     xfree(c->addinfo);
 850     xfree(c->diagset);
 851     odr_destroy(c->odr_in);
 852     odr_destroy(c->odr_out);
 853     if (c->odr_print)
 854     {
 855         odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
 856         odr_destroy(c->odr_print);
 857     }
 858     ZOOM_options_destroy(c->options);
 859     ZOOM_connection_remove_tasks(c);
 860     ZOOM_connection_remove_events(c);
 861     xfree(c->host_port);
 862     xfree(c->path);
 863     xfree(c->proxy);
 864     xfree(c->charset);
 865     xfree(c->lang);
 866     xfree(c->cookie_out);
 867     xfree(c->cookie_in);
 868     xfree(c->client_IP);
 869     xfree(c->user);
 870     xfree(c->group);
 871     xfree(c->password);
 872     xfree(c->sru_version);
 873     xfree(c);
 874 }
 875
 876 void ZOOM_resultset_addref(ZOOM_resultset r)
 877 {
 878     if (r)
 879     {
 880         yaz_mutex_enter(r->mutex);
 881         (r->refcount)++;
 882         yaz_log(log_details, "%p ZOOM_resultset_addref count=%d",
 883                 r, r->refcount);
 884         yaz_mutex_leave(r->mutex);
 885     }
 886 }
 887
 888 ZOOM_resultset ZOOM_resultset_create(void)
 889 {
 890     int i;
 891     ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
 892
 893     initlog();
 894
 895     yaz_log(log_details, "%p ZOOM_resultset_create", r);
 896     r->refcount = 1;
 897     r->size = 0;
 898     r->odr = odr_createmem(ODR_ENCODE);
 899     r->piggyback = 1;
 900     r->setname = 0;
 901     r->schema = 0;
 902     r->step = 0;
 903     for (i = 0; i<RECORD_HASH_SIZE; i++)
 904         r->record_hash[i] = 0;
 905     r->r_sort_spec = 0;
 906     r->query = 0;
 907     r->connection = 0;
 908     r->databaseNames = 0;
 909     r->num_databaseNames = 0;
 910     r->facets = 0;
 911     r->mutex = 0;
 912     yaz_mutex_create(&r->mutex);
 913 #if SHPTR
 914     {
 915         WRBUF w = wrbuf_alloc();
 916         YAZ_SHPTR_INIT(r->record_wrbuf, w);
 917     }
 918 #endif
 919     return r;
 920 }
 921
 922 ZOOM_API(ZOOM_resultset)
 923     ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
 924 {
 925     ZOOM_resultset r;
 926     ZOOM_query s = ZOOM_query_create();
 927
 928     ZOOM_query_prefix(s, q);
 929
 930     r = ZOOM_connection_search(c, s);
 931     ZOOM_query_destroy(s);
 932     return r;
 933 }
 934
 935 ZOOM_API(ZOOM_resultset)
 936     ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
 937 {
 938     ZOOM_resultset r = ZOOM_resultset_create();
 939     ZOOM_task task;
 940     const char *cp;
 941     int start, count;
 942     const char *syntax, *elementSetName;
 943 #if ZOOM_RESULT_LISTS
 944     ZOOM_resultsets set;
 945 #endif
 946
 947     yaz_log(log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
 948     r->r_sort_spec = q->sort_spec;
 949     r->query = q;
 950
 951     r->options = ZOOM_options_create_with_parent(c->options);
 952
 953     start = ZOOM_options_get_int(r->options, "start", 0);
 954     count = ZOOM_options_get_int(r->options, "count", 0);
 955     {
 956         /* If "presentChunk" is defined use that; otherwise "step" */
 957         const char *cp = ZOOM_options_get(r->options, "presentChunk");
 958         r->step = ZOOM_options_get_int(r->options,
 959                                        (cp != 0 ? "presentChunk": "step"), 0);
 960     }
 961     r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
 962     cp = ZOOM_options_get(r->options, "setname");
 963     if (cp)
 964         r->setname = xstrdup(cp);
 965     cp = ZOOM_options_get(r->options, "schema");
 966     if (cp)
 967         r->schema = xstrdup(cp);
 968
 969     r->databaseNames = set_DatabaseNames(c, c->options, &r->num_databaseNames,
 970                                          r->odr);
 971
 972     r->connection = c;
 973
 974 #if ZOOM_RESULT_LISTS
 975     yaz_log(log_details, "%p ZOOM_connection_search: Adding new resultset (%p) to resultsets (%p) ", c, r, c->resultsets);
 976     set = xmalloc(sizeof(*set));
 977     ZOOM_resultset_addref(r);
 978     set->resultset = r;
 979     set->next = c->resultsets;
 980     c->resultsets = set;
 981 #else
 982     r->next = c->resultsets;
 983     c->resultsets = r;
 984 #endif
 985     if (c->host_port && c->proto == PROTO_HTTP)
 986     {
 987         if (!c->cs)
 988         {
 989             yaz_log(log_details, "ZOOM_connection_search: no comstack");
 990             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 991         }
 992         else
 993         {
 994             yaz_log(log_details, "ZOOM_connection_search: reconnect");
 995             c->reconnect_ok = 1;
 996         }
 997     }
 998
 999     task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
1000     task->u.search.resultset = r;
1001     task->u.search.start = start;
1002     task->u.search.count = count;
1003     task->u.search.recv_search_fired = 0;
1004
1005     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1006     task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
1007     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1008     task->u.search.elementSetName = elementSetName
1009         ? xstrdup(elementSetName) : 0;
1010
1011     ZOOM_resultset_addref(r);
1012
1013     (q->refcount)++;
1014
1015     if (!c->async)
1016     {
1017         while (ZOOM_event(1, &c))
1018             ;
1019     }
1020     return r;
1021 }
1022
1023 ZOOM_API(void)
1024     ZOOM_resultset_sort(ZOOM_resultset r,
1025                          const char *sort_type, const char *sort_spec)
1026 {
1027     (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
1028 }
1029
1030 ZOOM_API(int)
1031     ZOOM_resultset_sort1(ZOOM_resultset r,
1032                          const char *sort_type, const char *sort_spec)
1033 {
1034     ZOOM_connection c = r->connection;
1035     ZOOM_task task;
1036     ZOOM_query newq;
1037
1038     newq = ZOOM_query_create();
1039     if (ZOOM_query_sortby(newq, sort_spec) < 0)
1040         return -1;
1041
1042     yaz_log(log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
1043             r, r, sort_type, sort_spec);
1044     if (!c)
1045         return 0;
1046
1047     if (c->host_port && c->proto == PROTO_HTTP)
1048     {
1049         if (!c->cs)
1050         {
1051             yaz_log(log_details, "%p ZOOM_resultset_sort: no comstack", r);
1052             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1053         }
1054         else
1055         {
1056             yaz_log(log_details, "%p ZOOM_resultset_sort: prepare reconnect",
1057                     r);
1058             c->reconnect_ok = 1;
1059         }
1060     }
1061
1062     ZOOM_resultset_cache_reset(r);
1063     task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
1064     task->u.sort.resultset = r;
1065     task->u.sort.q = newq;
1066
1067     ZOOM_resultset_addref(r);
1068
1069     if (!c->async)
1070     {
1071         while (ZOOM_event(1, &c))
1072             ;
1073     }
1074
1075     return 0;
1076 }
1077
1078 static void ZOOM_record_release(ZOOM_record rec)
1079 {
1080     if (!rec)
1081         return;
1082
1083 #if SHPTR
1084     if (rec->record_wrbuf)
1085         YAZ_SHPTR_DEC(rec->record_wrbuf, wrbuf_destroy);
1086 #else
1087     if (rec->wrbuf)
1088         wrbuf_destroy(rec->wrbuf);
1089 #endif
1090
1091     if (rec->odr)
1092         odr_destroy(rec->odr);
1093 }
1094
1095 ZOOM_API(void)
1096     ZOOM_resultset_cache_reset(ZOOM_resultset r)
1097 {
1098     int i;
1099     for (i = 0; i<RECORD_HASH_SIZE; i++)
1100     {
1101         ZOOM_record_cache rc;
1102         for (rc = r->record_hash[i]; rc; rc = rc->next)
1103         {
1104             ZOOM_record_release(&rc->rec);
1105         }
1106         r->record_hash[i] = 0;
1107     }
1108 }
1109
1110 ZOOM_API(void)
1111     ZOOM_resultset_destroy(ZOOM_resultset r)
1112 {
1113     resultset_destroy(r);
1114 }
1115
1116 static void resultset_destroy(ZOOM_resultset r)
1117 {
1118     if (!r)
1119         return;
1120     yaz_mutex_enter(r->mutex);
1121     (r->refcount)--;
1122     yaz_log(log_details, "%p ZOOM_resultset_destroy r=%p count=%d",
1123             r, r, r->refcount);
1124     if (r->refcount == 0)
1125     {
1126         yaz_mutex_leave(r->mutex);
1127
1128         yaz_log(log_details, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
1129         ZOOM_resultset_cache_reset(r);
1130         ZOOM_resultset_release(r);
1131         ZOOM_query_destroy(r->query);
1132         ZOOM_options_destroy(r->options);
1133         odr_destroy(r->odr);
1134         xfree(r->setname);
1135         xfree(r->schema);
1136         yaz_mutex_destroy(&r->mutex);
1137 #if SHPTR
1138         YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
1139 #endif
1140         xfree(r);
1141     }
1142     else
1143         yaz_mutex_leave(r->mutex);
1144 }
1145
1146 ZOOM_API(size_t)
1147     ZOOM_resultset_size(ZOOM_resultset r)
1148 {
1149     yaz_log(log_details, "ZOOM_resultset_size r=%p count=" ODR_INT_PRINTF,
1150             r, r->size);
1151     return r->size;
1152 }
1153
1154 static void do_close(ZOOM_connection c)
1155 {
1156     if (c->cs)
1157         cs_close(c->cs);
1158     c->cs = 0;
1159     ZOOM_connection_set_mask(c, 0);
1160     c->state = STATE_IDLE;
1161 }
1162
1163 static int ZOOM_test_reconnect(ZOOM_connection c)
1164 {
1165     ZOOM_Event event;
1166
1167     if (!c->reconnect_ok)
1168         return 0;
1169     do_close(c);
1170     c->reconnect_ok = 0;
1171     c->tasks->running = 0;
1172     ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1173
1174     event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1175     ZOOM_connection_put_event(c, event);
1176
1177     return 1;
1178 }
1179
1180 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
1181                                     int force_sync, int start, int count)
1182 {
1183     ZOOM_task task;
1184     ZOOM_connection c;
1185     const char *cp;
1186     const char *syntax, *elementSetName;
1187
1188     if (!r)
1189         return;
1190     yaz_log(log_details, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
1191             " count=%d", r, force_sync, start, count);
1192     c = r->connection;
1193     if (!c)
1194         return;
1195
1196     if (c->host_port && c->proto == PROTO_HTTP)
1197     {
1198         if (!c->cs)
1199         {
1200             yaz_log(log_details, "%p ZOOM_resultset_retrieve: no comstack", r);
1201             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1202         }
1203         else
1204         {
1205             yaz_log(log_details, "%p ZOOM_resultset_retrieve: prepare "
1206                     "reconnect", r);
1207             c->reconnect_ok = 1;
1208         }
1209     }
1210     task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
1211     task->u.retrieve.resultset = r;
1212     task->u.retrieve.start = start;
1213     task->u.retrieve.count = count;
1214
1215     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1216     task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
1217     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1218     task->u.retrieve.elementSetName = elementSetName
1219         ? xstrdup(elementSetName) : 0;
1220
1221     cp = ZOOM_options_get(r->options, "schema");
1222     if (cp)
1223     {
1224         if (!r->schema || strcmp(r->schema, cp))
1225         {
1226             xfree(r->schema);
1227             r->schema = xstrdup(cp);
1228         }
1229     }
1230
1231     ZOOM_resultset_addref(r);
1232
1233     if (!r->connection->async || force_sync)
1234         while (r->connection && ZOOM_event(1, &r->connection))
1235             ;
1236 }
1237
1238 ZOOM_API(void)
1239     ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
1240                            size_t start, size_t count)
1241 {
1242     int force_present = 0;
1243
1244     if (!r)
1245         return ;
1246     yaz_log(log_api, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
1247             r, r, (long) start, (long) count);
1248     if (count && recs)
1249         force_present = 1;
1250     ZOOM_resultset_retrieve(r, force_present, start, count);
1251     if (force_present)
1252     {
1253         size_t i;
1254         for (i = 0; i< count; i++)
1255             recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1256     }
1257 }
1258
1259 static void get_cert(ZOOM_connection c)
1260 {
1261     char *cert_buf;
1262     int cert_len;
1263
1264     if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1265     {
1266         ZOOM_connection_option_setl(c, "sslPeerCert",
1267                                     cert_buf, cert_len);
1268         xfree(cert_buf);
1269     }
1270 }
1271
1272 static zoom_ret do_connect_host(ZOOM_connection c,
1273                                 const char *effective_host,
1274                                 const char *logical_url);
1275
1276 static zoom_ret do_connect(ZOOM_connection c)
1277 {
1278     const char *effective_host;
1279
1280     if (c->proxy)
1281         effective_host = c->proxy;
1282     else
1283         effective_host = c->host_port;
1284     return do_connect_host(c, effective_host, c->host_port);
1285 }
1286
1287 static zoom_ret do_connect_host(ZOOM_connection c, const char *effective_host,
1288     const char *logical_url)
1289 {
1290     void *add;
1291
1292     yaz_log(log_details, "%p do_connect effective_host=%s", c, effective_host);
1293
1294     if (c->cs)
1295         cs_close(c->cs);
1296     c->cs = cs_create_host(effective_host, 0, &add);
1297
1298     if (c->cs && c->cs->protocol == PROTO_HTTP)
1299     {
1300 #if YAZ_HAVE_XML2
1301         if (logical_url)
1302         {
1303             const char *db = 0;
1304
1305             c->proto = PROTO_HTTP;
1306             cs_get_host_args(logical_url, &db);
1307             xfree(c->path);
1308
1309             c->path = xmalloc(strlen(db) * 3 + 2);
1310             yaz_encode_sru_dbpath_buf(c->path, db);
1311         }
1312 #else
1313         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1314         do_close(c);
1315         return zoom_complete;
1316 #endif
1317     }
1318     if (c->cs)
1319     {
1320         int ret = cs_connect(c->cs, add);
1321         if (ret == 0)
1322         {
1323             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1324             ZOOM_connection_put_event(c, event);
1325             get_cert(c);
1326             if (c->proto == PROTO_Z3950)
1327                 ZOOM_connection_send_init(c);
1328             else
1329             {
1330                 /* no init request for SRW .. */
1331                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1332                 ZOOM_connection_remove_task(c);
1333                 ZOOM_connection_set_mask(c, 0);
1334                 ZOOM_connection_exec_task(c);
1335             }
1336             c->state = STATE_ESTABLISHED;
1337             return zoom_pending;
1338         }
1339         else if (ret > 0)
1340         {
1341             int mask = ZOOM_SELECT_EXCEPT;
1342             if (c->cs->io_pending & CS_WANT_WRITE)
1343                 mask += ZOOM_SELECT_WRITE;
1344             if (c->cs->io_pending & CS_WANT_READ)
1345                 mask += ZOOM_SELECT_READ;
1346             ZOOM_connection_set_mask(c, mask);
1347             c->state = STATE_CONNECTING;
1348             return zoom_pending;
1349         }
1350     }
1351     c->state = STATE_IDLE;
1352     set_ZOOM_error(c, ZOOM_ERROR_CONNECT, logical_url);
1353     return zoom_complete;
1354 }
1355
1356 static void otherInfo_attach(ZOOM_connection c, Z_APDU *a, ODR out)
1357 {
1358     int i;
1359     for (i = 0; i<200; i++)
1360     {
1361         size_t len;
1362         Odr_oid *oid;
1363         Z_OtherInformation **oi;
1364         char buf[80];
1365         const char *val;
1366         const char *cp;
1367
1368         sprintf(buf, "otherInfo%d", i);
1369         val = ZOOM_options_get(c->options, buf);
1370         if (!val)
1371             break;
1372         cp = strchr(val, ':');
1373         if (!cp)
1374             continue;
1375         len = cp - val;
1376         if (len >= sizeof(buf))
1377             len = sizeof(buf)-1;
1378         memcpy(buf, val, len);
1379         buf[len] = '\0';
1380
1381         oid = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_USERINFO,
1382                                     buf, out);
1383         if (!oid)
1384             continue;
1385
1386         yaz_oi_APDU(a, &oi);
1387         yaz_oi_set_string_oid(oi, out, oid, 1, cp+1);
1388     }
1389 }
1390
1391 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
1392 {
1393     assert(a);
1394     if (c->cookie_out)
1395     {
1396         Z_OtherInformation **oi;
1397         yaz_oi_APDU(a, &oi);
1398         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_cookie,
1399                               1, c->cookie_out);
1400     }
1401     if (c->client_IP)
1402     {
1403         Z_OtherInformation **oi;
1404         yaz_oi_APDU(a, &oi);
1405         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_client_ip,
1406                               1, c->client_IP);
1407     }
1408     otherInfo_attach(c, a, out);
1409     if (!z_APDU(out, &a, 0, 0))
1410     {
1411         FILE *outf = fopen("/tmp/apdu.txt", "a");
1412         if (a && outf)
1413         {
1414             ODR odr_pr = odr_createmem(ODR_PRINT);
1415             fprintf(outf, "a=%p\n", a);
1416             odr_setprint(odr_pr, outf);
1417             z_APDU(odr_pr, &a, 0, 0);
1418             odr_destroy(odr_pr);
1419         }
1420         yaz_log(log_api, "%p encoding_APDU: encoding failed", c);
1421         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
1422         odr_reset(out);
1423         return -1;
1424     }
1425     if (c->odr_print)
1426         z_APDU(c->odr_print, &a, 0, 0);
1427     yaz_log(log_details, "%p encoding_APDU encoding OK", c);
1428     return 0;
1429 }
1430
1431 static zoom_ret send_APDU(ZOOM_connection c, Z_APDU *a)
1432 {
1433     ZOOM_Event event;
1434     assert(a);
1435     if (encode_APDU(c, a, c->odr_out))
1436         return zoom_complete;
1437     yaz_log(log_details, "%p send APDU type=%d", c, a->which);
1438     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1439     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1440     ZOOM_connection_put_event(c, event);
1441     odr_reset(c->odr_out);
1442     return do_write(c);
1443 }
1444
1445 /* returns 1 if PDU was sent OK (still pending )
1446    0 if PDU was not sent OK (nothing to wait for)
1447 */
1448
1449 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c)
1450 {
1451     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
1452     Z_InitRequest *ireq = apdu->u.initRequest;
1453     Z_IdAuthentication *auth = (Z_IdAuthentication *)
1454         odr_malloc(c->odr_out, sizeof(*auth));
1455
1456     ODR_MASK_SET(ireq->options, Z_Options_search);
1457     ODR_MASK_SET(ireq->options, Z_Options_present);
1458     ODR_MASK_SET(ireq->options, Z_Options_scan);
1459     ODR_MASK_SET(ireq->options, Z_Options_sort);
1460     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
1461     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
1462
1463     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
1464     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
1465     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
1466
1467     ireq->implementationId =
1468         odr_prepend(c->odr_out,
1469                     ZOOM_options_get(c->options, "implementationId"),
1470                     ireq->implementationId);
1471
1472     ireq->implementationName =
1473         odr_prepend(c->odr_out,
1474                     ZOOM_options_get(c->options, "implementationName"),
1475                     odr_prepend(c->odr_out, "ZOOM-C",
1476                                 ireq->implementationName));
1477
1478     ireq->implementationVersion =
1479         odr_prepend(c->odr_out,
1480                     ZOOM_options_get(c->options, "implementationVersion"),
1481                                 ireq->implementationVersion);
1482
1483     *ireq->maximumRecordSize = c->maximum_record_size;
1484     *ireq->preferredMessageSize = c->preferred_message_size;
1485
1486     if (c->group || c->password)
1487     {
1488         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
1489         pass->groupId = odr_strdup_null(c->odr_out, c->group);
1490         pass->userId = odr_strdup_null(c->odr_out, c->user);
1491         pass->password = odr_strdup_null(c->odr_out, c->password);
1492         auth->which = Z_IdAuthentication_idPass;
1493         auth->u.idPass = pass;
1494         ireq->idAuthentication = auth;
1495     }
1496     else if (c->user)
1497     {
1498         auth->which = Z_IdAuthentication_open;
1499         auth->u.open = odr_strdup(c->odr_out, c->user);
1500         ireq->idAuthentication = auth;
1501     }
1502     if (c->proxy)
1503     {
1504         yaz_oi_set_string_oid(&ireq->otherInfo, c->odr_out,
1505                               yaz_oid_userinfo_proxy, 1, c->host_port);
1506     }
1507     if (c->charset || c->lang)
1508     {
1509         Z_OtherInformation **oi;
1510         Z_OtherInformationUnit *oi_unit;
1511
1512         yaz_oi_APDU(apdu, &oi);
1513
1514         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
1515         {
1516             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
1517             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
1518             oi_unit->information.externallyDefinedInfo =
1519                 yaz_set_proposal_charneg_list(c->odr_out, " ",
1520                                               c->charset, c->lang, 1);
1521         }
1522     }
1523     assert(apdu);
1524     return send_APDU(c, apdu);
1525 }
1526
1527 #if YAZ_HAVE_XML2
1528 static zoom_ret send_srw(ZOOM_connection c, Z_SRW_PDU *sr)
1529 {
1530     Z_GDU *gdu;
1531     ZOOM_Event event;
1532     const char *database =  ZOOM_options_get(c->options, "databaseName");
1533     char *fdatabase = 0;
1534
1535     if (database)
1536         fdatabase = yaz_encode_sru_dbpath_odr(c->odr_out, database);
1537     gdu = z_get_HTTP_Request_host_path(c->odr_out, c->host_port,
1538                                        fdatabase ? fdatabase : c->path);
1539
1540     if (c->sru_mode == zoom_sru_get)
1541     {
1542         yaz_sru_get_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1543     }
1544     else if (c->sru_mode == zoom_sru_post)
1545     {
1546         yaz_sru_post_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1547     }
1548     else if (c->sru_mode == zoom_sru_soap)
1549     {
1550         yaz_sru_soap_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1551     }
1552     if (!z_GDU(c->odr_out, &gdu, 0, 0))
1553         return zoom_complete;
1554     if (c->odr_print)
1555         z_GDU(c->odr_print, &gdu, 0, 0);
1556     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1557
1558     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1559     ZOOM_connection_put_event(c, event);
1560     odr_reset(c->odr_out);
1561     return do_write(c);
1562 }
1563 #endif
1564
1565 #if YAZ_HAVE_XML2
1566 static Z_SRW_PDU *ZOOM_srw_get_pdu(ZOOM_connection c, int type)
1567 {
1568     Z_SRW_PDU *sr = yaz_srw_get_pdu(c->odr_out, type, c->sru_version);
1569     sr->username = c->user;
1570     sr->password = c->password;
1571     return sr;
1572 }
1573 #endif
1574
1575 #if YAZ_HAVE_XML2
1576 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1577 {
1578     int i;
1579     int *start, *count;
1580     ZOOM_resultset resultset = 0;
1581     Z_SRW_PDU *sr = 0;
1582     const char *option_val = 0;
1583
1584     if (c->error)                  /* don't continue on error */
1585         return zoom_complete;
1586     assert(c->tasks);
1587     switch(c->tasks->which)
1588     {
1589     case ZOOM_TASK_SEARCH:
1590         resultset = c->tasks->u.search.resultset;
1591         if (!resultset->setname)
1592             resultset->setname = xstrdup("default");
1593         ZOOM_options_set(resultset->options, "setname", resultset->setname);
1594         start = &c->tasks->u.search.start;
1595         count = &c->tasks->u.search.count;
1596         break;
1597     case ZOOM_TASK_RETRIEVE:
1598         resultset = c->tasks->u.retrieve.resultset;
1599
1600         start = &c->tasks->u.retrieve.start;
1601         count = &c->tasks->u.retrieve.count;
1602
1603         if (*start >= resultset->size)
1604             return zoom_complete;
1605         if (*start + *count > resultset->size)
1606             *count = resultset->size - *start;
1607
1608         for (i = 0; i < *count; i++)
1609         {
1610             ZOOM_record rec =
1611                 record_cache_lookup(resultset, i + *start,
1612                                     c->tasks->u.retrieve.syntax,
1613                                     c->tasks->u.retrieve.elementSetName);
1614             if (!rec)
1615                 break;
1616             else
1617             {
1618                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
1619                 ZOOM_connection_put_event(c, event);
1620             }
1621         }
1622         *start += i;
1623         *count -= i;
1624
1625         if (*count == 0)
1626             return zoom_complete;
1627         break;
1628     default:
1629         return zoom_complete;
1630     }
1631     assert(resultset->query);
1632
1633     sr = ZOOM_srw_get_pdu(c, Z_SRW_searchRetrieve_request);
1634     if (resultset->query->z_query->which == Z_Query_type_104
1635         && resultset->query->z_query->u.type_104->which == Z_External_CQL)
1636     {
1637         sr->u.request->query_type = Z_SRW_query_type_cql;
1638         sr->u.request->query.cql =resultset->query->z_query->u.type_104->u.cql;
1639     }
1640     else if (resultset->query->z_query->which == Z_Query_type_1 &&
1641              resultset->query->z_query->u.type_1)
1642     {
1643         sr->u.request->query_type = Z_SRW_query_type_pqf;
1644         sr->u.request->query.pqf = resultset->query->query_string;
1645     }
1646     else
1647     {
1648         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
1649         return zoom_complete;
1650     }
1651     sr->u.request->startRecord = odr_intdup(c->odr_out, *start + 1);
1652     sr->u.request->maximumRecords = odr_intdup(
1653         c->odr_out, (resultset->step > 0 && resultset->step < *count) ?
1654         resultset->step : *count);
1655     sr->u.request->recordSchema = resultset->schema;
1656
1657     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1658     if (option_val)
1659         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1660
1661     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1662     yaz_encode_sru_extra(sr, c->odr_out, option_val);
1663     return send_srw(c, sr);
1664 }
1665 #else
1666 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1667 {
1668     return zoom_complete;
1669 }
1670 #endif
1671
1672 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1673 {
1674     ZOOM_resultset r;
1675     int lslb, ssub, mspn;
1676     const char *syntax;
1677     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1678     Z_SearchRequest *search_req = apdu->u.searchRequest;
1679     const char *elementSetName;
1680     const char *smallSetElementSetName;
1681     const char *mediumSetElementSetName;
1682     const char *facets;
1683
1684     assert(c->tasks);
1685     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1686
1687     r = c->tasks->u.search.resultset;
1688
1689     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1690
1691     elementSetName =
1692         ZOOM_options_get(r->options, "elementSetName");
1693     smallSetElementSetName  =
1694         ZOOM_options_get(r->options, "smallSetElementSetName");
1695     mediumSetElementSetName =
1696         ZOOM_options_get(r->options, "mediumSetElementSetName");
1697
1698     if (!smallSetElementSetName)
1699         smallSetElementSetName = elementSetName;
1700
1701     if (!mediumSetElementSetName)
1702         mediumSetElementSetName = elementSetName;
1703
1704     facets = ZOOM_options_get(r->options, "facets");
1705     if (facets) {
1706         Z_FacetList *facet_list = yaz_pqf_parse_facet_list(c->odr_out, facets);
1707         if (facet_list) {
1708             Z_OtherInformation **oi;
1709             yaz_oi_APDU(apdu, &oi);
1710             if (facet_list) {
1711                 yaz_oi_set_facetlist_oid(oi, c->odr_out, yaz_oid_userinfo_facet_1, 1, facet_list);
1712             }
1713         }
1714     }
1715
1716     assert(r);
1717     assert(r->query);
1718
1719     /* prepare query for the search request */
1720     search_req->query = r->query->z_query;
1721     if (!search_req->query)
1722     {
1723         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1724         return zoom_complete;
1725     }
1726     if (r->query->z_query->which == Z_Query_type_1 ||
1727         r->query->z_query->which == Z_Query_type_101)
1728     {
1729         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1730         if (cp)
1731         {
1732             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1733             if (cd)
1734             {
1735                 int r;
1736                 search_req->query = yaz_copy_Z_Query(search_req->query,
1737                                                      c->odr_out);
1738
1739                 r = yaz_query_charset_convert_rpnquery_check(
1740                     search_req->query->u.type_1,
1741                     c->odr_out, cd);
1742                 yaz_iconv_close(cd);
1743                 if (r)
1744                 {  /* query could not be char converted */
1745                     set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1746                     return zoom_complete;
1747                 }
1748             }
1749         }
1750     }
1751     search_req->databaseNames = r->databaseNames;
1752     search_req->num_databaseNames = r->num_databaseNames;
1753
1754     /* get syntax (no need to provide unless piggyback is in effect) */
1755     syntax = c->tasks->u.search.syntax;
1756
1757     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1758     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1759     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1760     if (lslb != -1 && ssub != -1 && mspn != -1)
1761     {
1762         /* So're a Z39.50 expert? Let's hope you don't do sort */
1763         *search_req->largeSetLowerBound = lslb;
1764         *search_req->smallSetUpperBound = ssub;
1765         *search_req->mediumSetPresentNumber = mspn;
1766     }
1767     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1768              && r->piggyback && !r->r_sort_spec && !r->schema)
1769     {
1770         /* Regular piggyback - do it unless we're going to do sort */
1771         *search_req->largeSetLowerBound = 2000000000;
1772         *search_req->smallSetUpperBound = 1;
1773         *search_req->mediumSetPresentNumber =
1774             r->step>0 ? r->step : c->tasks->u.search.count;
1775     }
1776     else
1777     {
1778         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1779         smallSetElementSetName = 0;
1780         mediumSetElementSetName = 0;
1781         syntax = 0;
1782     }
1783     if (smallSetElementSetName && *smallSetElementSetName)
1784     {
1785         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1786             odr_malloc(c->odr_out, sizeof(*esn));
1787
1788         esn->which = Z_ElementSetNames_generic;
1789         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1790         search_req->smallSetElementSetNames = esn;
1791     }
1792     if (mediumSetElementSetName && *mediumSetElementSetName)
1793     {
1794         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1795             odr_malloc(c->odr_out, sizeof(*esn));
1796
1797         esn->which = Z_ElementSetNames_generic;
1798         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1799         search_req->mediumSetElementSetNames = esn;
1800     }
1801     if (syntax)
1802         search_req->preferredRecordSyntax =
1803             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1804
1805     if (!r->setname)
1806     {
1807         if (c->support_named_resultsets)
1808         {
1809             char setname[14];
1810             int ord;
1811             /* find the lowest unused ordinal so that we re-use
1812                result sets on the server. */
1813             for (ord = 1; ; ord++)
1814             {
1815 #if ZOOM_RESULT_LISTS
1816                 ZOOM_resultsets rsp;
1817                 sprintf(setname, "%d", ord);
1818                 for (rsp = c->resultsets; rsp; rsp = rsp->next)
1819                     if (rsp->resultset->setname && !strcmp(rsp->resultset->setname, setname))
1820                         break;
1821                 if (!rsp)
1822                     break;
1823 #else
1824                 ZOOM_resultset rp;
1825                 sprintf(setname, "%d", ord);
1826                 for (rp = c->resultsets; rp; rp = rp->next)
1827                     if (rp->setname && !strcmp(rp->setname, setname))
1828                         break;
1829                 if (!rp)
1830                     break;
1831 #endif
1832
1833             }
1834             r->setname = xstrdup(setname);
1835             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1836                     "set %s", c, r->setname);
1837         }
1838         else
1839         {
1840             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1841                     "default set", c);
1842             r->setname = xstrdup("default");
1843         }
1844         ZOOM_options_set(r->options, "setname", r->setname);
1845     }
1846     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1847     return send_APDU(c, apdu);
1848 }
1849
1850 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1851 {
1852     char oid_name_buf[OID_STR_MAX];
1853     const char *oid_name;
1854     char *addinfo = 0;
1855
1856     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1857     switch (r->which)
1858     {
1859     case Z_DefaultDiagFormat_v2Addinfo:
1860         addinfo = r->u.v2Addinfo;
1861         break;
1862     case Z_DefaultDiagFormat_v3Addinfo:
1863         addinfo = r->u.v3Addinfo;
1864         break;
1865     }
1866     xfree(c->addinfo);
1867     c->addinfo = 0;
1868     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1869 }
1870
1871 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1872 {
1873     if (p->which != Z_DiagRec_defaultFormat)
1874         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1875     else
1876         response_default_diag(c, p->u.defaultFormat);
1877 }
1878
1879 ZOOM_API(ZOOM_record)
1880     ZOOM_record_clone(ZOOM_record srec)
1881 {
1882     char *buf;
1883     int size;
1884     ODR odr_enc;
1885     ZOOM_record nrec;
1886
1887     odr_enc = odr_createmem(ODR_ENCODE);
1888     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1889         return 0;
1890     buf = odr_getbuf(odr_enc, &size, 0);
1891
1892     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1893     yaz_log(log_details, "ZOOM_record create");
1894     nrec->odr = odr_createmem(ODR_DECODE);
1895 #if SHPTR
1896     nrec->record_wrbuf = 0;
1897 #else
1898     nrec->wrbuf = 0;
1899 #endif
1900     odr_setbuf(nrec->odr, buf, size, 0);
1901     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1902
1903     nrec->schema = odr_strdup_null(nrec->odr, srec->schema);
1904     nrec->diag_uri = odr_strdup_null(nrec->odr, srec->diag_uri);
1905     nrec->diag_message = odr_strdup_null(nrec->odr, srec->diag_message);
1906     nrec->diag_details = odr_strdup_null(nrec->odr, srec->diag_details);
1907     nrec->diag_set = odr_strdup_null(nrec->odr, srec->diag_set);
1908     odr_destroy(odr_enc);
1909     return nrec;
1910 }
1911
1912 ZOOM_API(ZOOM_record)
1913     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1914 {
1915     const char *syntax =
1916         ZOOM_options_get(s->options, "preferredRecordSyntax");
1917     const char *elementSetName =
1918         ZOOM_options_get(s->options, "elementSetName");
1919
1920     return record_cache_lookup(s, pos, syntax, elementSetName);
1921 }
1922
1923 ZOOM_API(ZOOM_record)
1924     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1925 {
1926     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1927
1928     if (!rec)
1929     {
1930         /*
1931          * MIKE: I think force_sync should always be zero, but I don't
1932          * want to make this change until I get the go-ahead from
1933          * Adam, in case something depends on the old synchronous
1934          * behaviour.
1935          */
1936         int force_sync = 1;
1937         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1938         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1939         rec = ZOOM_resultset_record_immediate(r, pos);
1940     }
1941     return rec;
1942 }
1943
1944 ZOOM_API(void)
1945     ZOOM_record_destroy(ZOOM_record rec)
1946 {
1947     ZOOM_record_release(rec);
1948     yaz_log(log_details, "ZOOM_record destroy");
1949     xfree(rec);
1950 }
1951
1952
1953 static yaz_iconv_t iconv_create_charset(const char *record_charset)
1954 {
1955     char to[40];
1956     char from[40];
1957     yaz_iconv_t cd = 0;
1958
1959     *from = '\0';
1960     strcpy(to, "UTF-8");
1961     if (record_charset && *record_charset)
1962     {
1963         /* Use "from,to" or just "from" */
1964         const char *cp = strchr(record_charset, ',');
1965         size_t clen = strlen(record_charset);
1966         if (cp && cp[1])
1967         {
1968             strncpy( to, cp+1, sizeof(to)-1);
1969             to[sizeof(to)-1] = '\0';
1970             clen = cp - record_charset;
1971         }
1972         if (clen > sizeof(from)-1)
1973             clen = sizeof(from)-1;
1974
1975         if (clen)
1976             strncpy(from, record_charset, clen);
1977         from[clen] = '\0';
1978     }
1979     if (*from && *to)
1980         cd = yaz_iconv_open(to, from);
1981     return cd;
1982 }
1983
1984 static const char *return_marc_record(WRBUF wrbuf,
1985                                       int marc_type,
1986                                       int *len,
1987                                       const char *buf, int sz,
1988                                       const char *record_charset)
1989 {
1990     yaz_iconv_t cd = iconv_create_charset(record_charset);
1991     yaz_marc_t mt = yaz_marc_create();
1992     const char *ret_string = 0;
1993
1994     if (cd)
1995         yaz_marc_iconv(mt, cd);
1996     yaz_marc_xml(mt, marc_type);
1997     if (yaz_marc_decode_wrbuf(mt, buf, sz, wrbuf) > 0)
1998     {
1999         if (len)
2000             *len = wrbuf_len(wrbuf);
2001         ret_string = wrbuf_cstr(wrbuf);
2002     }
2003     yaz_marc_destroy(mt);
2004     if (cd)
2005         yaz_iconv_close(cd);
2006     return ret_string;
2007 }
2008
2009 static const char *return_opac_record(WRBUF wrbuf,
2010                                       int marc_type,
2011                                       int *len,
2012                                       Z_OPACRecord *opac_rec,
2013                                       const char *record_charset)
2014 {
2015     yaz_iconv_t cd = iconv_create_charset(record_charset);
2016     yaz_marc_t mt = yaz_marc_create();
2017
2018     if (cd)
2019         yaz_marc_iconv(mt, cd);
2020     yaz_marc_xml(mt, marc_type);
2021
2022     yaz_opac_decode_wrbuf(mt, opac_rec, wrbuf);
2023     yaz_marc_destroy(mt);
2024
2025     if (cd)
2026         yaz_iconv_close(cd);
2027     if (len)
2028         *len = wrbuf_len(wrbuf);
2029     return wrbuf_cstr(wrbuf);
2030 }
2031
2032 static const char *return_string_record(WRBUF wrbuf,
2033                                         int *len,
2034                                         const char *buf, int sz,
2035                                         const char *record_charset)
2036 {
2037     yaz_iconv_t cd = iconv_create_charset(record_charset);
2038
2039     if (cd)
2040     {
2041         wrbuf_iconv_write(wrbuf, cd, buf, sz);
2042         wrbuf_iconv_reset(wrbuf, cd);
2043
2044         buf = wrbuf_cstr(wrbuf);
2045         sz = wrbuf_len(wrbuf);
2046         yaz_iconv_close(cd);
2047     }
2048     if (len)
2049         *len = sz;
2050     return buf;
2051 }
2052
2053 static const char *return_record_wrbuf(WRBUF wrbuf, int *len,
2054                                        Z_NamePlusRecord *npr,
2055                                        int marctype, const char *charset)
2056 {
2057     Z_External *r = (Z_External *) npr->u.databaseRecord;
2058     const Odr_oid *oid = r->direct_reference;
2059
2060     wrbuf_rewind(wrbuf);
2061     /* render bibliographic record .. */
2062     if (r->which == Z_External_OPAC)
2063     {
2064         return return_opac_record(wrbuf, marctype, len,
2065                                   r->u.opac, charset);
2066     }
2067     if (r->which == Z_External_sutrs)
2068         return return_string_record(wrbuf, len,
2069                                     (char*) r->u.sutrs->buf,
2070                                     r->u.sutrs->len,
2071                                     charset);
2072     else if (r->which == Z_External_octet)
2073     {
2074         if (yaz_oid_is_iso2709(oid))
2075         {
2076             const char *ret_buf = return_marc_record(
2077                 wrbuf, marctype, len,
2078                 (const char *) r->u.octet_aligned->buf,
2079                 r->u.octet_aligned->len,
2080                 charset);
2081             if (ret_buf)
2082                 return ret_buf;
2083             /* bad ISO2709. Return fail unless raw (ISO2709) is wanted */
2084             if (marctype != YAZ_MARC_ISO2709)
2085                 return 0;
2086         }
2087         return return_string_record(wrbuf, len,
2088                                     (const char *) r->u.octet_aligned->buf,
2089                                     r->u.octet_aligned->len,
2090                                     charset);
2091     }
2092     else if (r->which == Z_External_grs1)
2093     {
2094         yaz_display_grs1(wrbuf, r->u.grs1, 0);
2095         return return_string_record(wrbuf, len,
2096                                     wrbuf_buf(wrbuf),
2097                                     wrbuf_len(wrbuf),
2098                                     charset);
2099     }
2100     return 0;
2101 }
2102
2103 ZOOM_API(int)
2104     ZOOM_record_error(ZOOM_record rec, const char **cp,
2105                       const char **addinfo, const char **diagset)
2106 {
2107     Z_NamePlusRecord *npr;
2108
2109     if (!rec)
2110         return 0;
2111
2112     npr = rec->npr;
2113     if (rec->diag_uri)
2114     {
2115         if (cp)
2116             *cp = rec->diag_message;
2117         if (addinfo)
2118             *addinfo = rec->diag_details;
2119         if (diagset)
2120             *diagset = rec->diag_set;
2121         return uri_to_code(rec->diag_uri);
2122     }
2123     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
2124     {
2125         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
2126         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
2127         const char *add = 0;
2128
2129         if (diag_rec->which == Z_DiagRec_defaultFormat)
2130         {
2131             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
2132             oid_class oclass;
2133
2134             error = *ddf->condition;
2135             switch (ddf->which)
2136             {
2137             case Z_DefaultDiagFormat_v2Addinfo:
2138                 add = ddf->u.v2Addinfo;
2139                 break;
2140             case Z_DefaultDiagFormat_v3Addinfo:
2141                 add = ddf->u.v3Addinfo;
2142                 break;
2143             }
2144             if (diagset)
2145                 *diagset =
2146                     yaz_oid_to_string(yaz_oid_std(),
2147                                       ddf->diagnosticSetId, &oclass);
2148         }
2149         else
2150         {
2151             if (diagset)
2152                 *diagset = "Bib-1";
2153         }
2154         if (addinfo)
2155             *addinfo = add ? add : "";
2156         if (cp)
2157             *cp = diagbib1_str(error);
2158         return error;
2159     }
2160     return 0;
2161 }
2162
2163 static const char *get_record_format(WRBUF wrbuf, int *len,
2164                                      Z_NamePlusRecord *npr,
2165                                      int marctype, const char *charset,
2166                                      const char *format)
2167 {
2168     const char *res = return_record_wrbuf(wrbuf, len, npr, marctype, charset);
2169 #if YAZ_HAVE_XML2
2170     if (*format == '1' && len)
2171     {
2172         /* try to XML format res */
2173         xmlDocPtr doc;
2174         xmlKeepBlanksDefault(0); /* get get xmlDocFormatMemory to work! */
2175         doc = xmlParseMemory(res, *len);
2176         if (doc)
2177         {
2178             xmlChar *xml_mem;
2179             int xml_size;
2180             xmlDocDumpFormatMemory(doc, &xml_mem, &xml_size, 1);
2181             wrbuf_rewind(wrbuf);
2182             wrbuf_write(wrbuf, (const char *) xml_mem, xml_size);
2183             xmlFree(xml_mem);
2184             xmlFreeDoc(doc);
2185             res = wrbuf_cstr(wrbuf);
2186             *len = wrbuf_len(wrbuf);
2187         }
2188     }
2189 #endif
2190     return res;
2191 }
2192
2193
2194 static const char *npr_format(Z_NamePlusRecord *npr, const char *schema,
2195                               WRBUF wrbuf,
2196                               const char *type_spec, int *len)
2197 {
2198     size_t i;
2199     char type[40];
2200     char charset[40];
2201     char format[3];
2202     const char *cp = type_spec;
2203
2204     for (i = 0; cp[i] && cp[i] != ';' && cp[i] != ' ' && i < sizeof(type)-1;
2205          i++)
2206         type[i] = cp[i];
2207     type[i] = '\0';
2208     charset[0] = '\0';
2209     format[0] = '\0';
2210     while (1)
2211     {
2212         while (cp[i] == ' ')
2213             i++;
2214         if (cp[i] != ';')
2215             break;
2216         i++;
2217         while (cp[i] == ' ')
2218             i++;
2219         if (!strncmp(cp + i, "charset=", 8))
2220         {
2221             size_t j = 0;
2222             i = i + 8; /* skip charset= */
2223             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2224             {
2225                 if (j < sizeof(charset)-1)
2226                     charset[j++] = cp[i];
2227             }
2228             charset[j] = '\0';
2229         }
2230         else if (!strncmp(cp + i, "format=", 7))
2231         {
2232             size_t j = 0;
2233             i = i + 7;
2234             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2235             {
2236                 if (j < sizeof(format)-1)
2237                     format[j++] = cp[i];
2238             }
2239             format[j] = '\0';
2240         }
2241     }
2242     if (!strcmp(type, "database"))
2243     {
2244         if (len)
2245             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2246         return npr->databaseName;
2247     }
2248     else if (!strcmp(type, "schema"))
2249     {
2250         if (len)
2251             *len = schema ? strlen(schema) : 0;
2252         return schema;
2253     }
2254     else if (!strcmp(type, "syntax"))
2255     {
2256         const char *desc = 0;
2257         if (npr->which == Z_NamePlusRecord_databaseRecord)
2258         {
2259             Z_External *r = (Z_External *) npr->u.databaseRecord;
2260             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2261         }
2262         if (!desc)
2263             desc = "none";
2264         if (len)
2265             *len = strlen(desc);
2266         return desc;
2267     }
2268     if (npr->which != Z_NamePlusRecord_databaseRecord)
2269         return 0;
2270
2271     /* from now on - we have a database record .. */
2272     if (!strcmp(type, "render"))
2273     {
2274         return get_record_format(wrbuf, len, npr, YAZ_MARC_LINE, charset, format);
2275     }
2276     else if (!strcmp(type, "xml"))
2277     {
2278         return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2279                                  format);
2280     }
2281     else if (!strcmp(type, "txml"))
2282     {
2283         return get_record_format(wrbuf, len, npr, YAZ_MARC_TURBOMARC, charset,
2284                                  format);
2285     }
2286     else if (!strcmp(type, "raw"))
2287     {
2288         return get_record_format(wrbuf, len, npr, YAZ_MARC_ISO2709, charset,
2289             format);
2290     }
2291     else if (!strcmp(type, "ext"))
2292     {
2293         if (len) *len = -1;
2294         return (const char *) npr->u.databaseRecord;
2295     }
2296     else if (!strcmp(type, "opac"))
2297     {
2298         if (npr->u.databaseRecord->which == Z_External_OPAC)
2299             return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2300                                      format);
2301     }
2302     return 0;
2303 }
2304
2305 ZOOM_API(const char *)
2306     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
2307 {
2308     WRBUF wrbuf;
2309
2310     if (len)
2311         *len = 0; /* default return */
2312
2313     if (!rec || !rec->npr)
2314         return 0;
2315
2316 #if SHPTR
2317     if (!rec->record_wrbuf)
2318     {
2319         WRBUF w = wrbuf_alloc();
2320         YAZ_SHPTR_INIT(rec->record_wrbuf, w);
2321     }
2322     wrbuf = rec->record_wrbuf->ptr;
2323 #else
2324     if (!rec->wrbuf)
2325         rec->wrbuf = wrbuf_alloc();
2326     wrbuf = rec->wrbuf;
2327 #endif
2328     return npr_format(rec->npr, rec->schema, wrbuf, type_spec, len);
2329 }
2330
2331 static int strcmp_null(const char *v1, const char *v2)
2332 {
2333     if (!v1 && !v2)
2334         return 0;
2335     if (!v1 || !v2)
2336         return -1;
2337     return strcmp(v1, v2);
2338 }
2339
2340 static size_t record_hash(int pos)
2341 {
2342     if (pos < 0)
2343         pos = 0;
2344     return pos % RECORD_HASH_SIZE;
2345 }
2346
2347 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2348                              int pos,
2349                              const char *syntax, const char *elementSetName,
2350                              const char *schema,
2351                              Z_SRW_diagnostic *diag)
2352 {
2353     ZOOM_record_cache rc = 0;
2354
2355     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2356     ZOOM_connection_put_event(r->connection, event);
2357
2358     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2359     {
2360         if (pos == rc->pos
2361             && strcmp_null(r->schema, rc->schema) == 0
2362             && strcmp_null(elementSetName,rc->elementSetName) == 0
2363             && strcmp_null(syntax, rc->syntax) == 0)
2364             break;
2365     }
2366     if (!rc)
2367     {
2368         rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2369         rc->rec.odr = 0;
2370 #if SHPTR
2371         YAZ_SHPTR_INC(r->record_wrbuf);
2372         rc->rec.record_wrbuf = r->record_wrbuf;
2373 #else
2374         rc->rec.wrbuf = 0;
2375 #endif
2376         rc->elementSetName = odr_strdup_null(r->odr, elementSetName);
2377
2378         rc->syntax = odr_strdup_null(r->odr, syntax);
2379
2380         rc->schema = odr_strdup_null(r->odr, r->schema);
2381
2382         rc->pos = pos;
2383         rc->next = r->record_hash[record_hash(pos)];
2384         r->record_hash[record_hash(pos)] = rc;
2385     }
2386     rc->rec.npr = npr;
2387     rc->rec.schema = odr_strdup_null(r->odr, schema);
2388     rc->rec.diag_set = 0;
2389     rc->rec.diag_uri = 0;
2390     rc->rec.diag_message = 0;
2391     rc->rec.diag_details = 0;
2392     if (diag)
2393     {
2394         if (diag->uri)
2395         {
2396             char *cp;
2397             rc->rec.diag_set = odr_strdup(r->odr, diag->uri);
2398             if ((cp = strrchr(rc->rec.diag_set, '/')))
2399                 *cp = '\0';
2400             rc->rec.diag_uri = odr_strdup(r->odr, diag->uri);
2401         }
2402         rc->rec.diag_message = odr_strdup_null(r->odr, diag->message);
2403         rc->rec.diag_details = odr_strdup_null(r->odr, diag->details);
2404     }
2405 }
2406
2407 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2408                                        const char *syntax,
2409                                        const char *elementSetName)
2410 {
2411     ZOOM_record_cache rc;
2412
2413     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2414     {
2415         if (pos == rc->pos)
2416         {
2417             if (strcmp_null(r->schema, rc->schema))
2418                 continue;
2419             if (strcmp_null(elementSetName,rc->elementSetName))
2420                 continue;
2421             if (strcmp_null(syntax, rc->syntax))
2422                 continue;
2423             return &rc->rec;
2424         }
2425     }
2426     return 0;
2427 }
2428
2429 static void handle_records(ZOOM_connection c, Z_Records *sr,
2430                            int present_phase)
2431 {
2432     ZOOM_resultset resultset;
2433     int *start, *count;
2434     const char *syntax = 0, *elementSetName = 0;
2435
2436     if (!c->tasks)
2437         return ;
2438     switch (c->tasks->which)
2439     {
2440     case ZOOM_TASK_SEARCH:
2441         resultset = c->tasks->u.search.resultset;
2442         start = &c->tasks->u.search.start;
2443         count = &c->tasks->u.search.count;
2444         syntax = c->tasks->u.search.syntax;
2445         elementSetName = c->tasks->u.search.elementSetName;
2446         break;
2447     case ZOOM_TASK_RETRIEVE:
2448         resultset = c->tasks->u.retrieve.resultset;
2449         start = &c->tasks->u.retrieve.start;
2450         count = &c->tasks->u.retrieve.count;
2451         syntax = c->tasks->u.retrieve.syntax;
2452         elementSetName = c->tasks->u.retrieve.elementSetName;
2453         break;
2454     default:
2455         return;
2456     }
2457     if (sr && sr->which == Z_Records_NSD)
2458         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2459     else if (sr && sr->which == Z_Records_multipleNSD)
2460     {
2461         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2462             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2463         else
2464             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2465     }
2466     else
2467     {
2468         if (*count + *start > resultset->size)
2469             *count = resultset->size - *start;
2470         if (*count < 0)
2471             *count = 0;
2472         if (sr && sr->which == Z_Records_DBOSD)
2473         {
2474             int i;
2475             NMEM nmem = odr_extract_mem(c->odr_in);
2476             Z_NamePlusRecordList *p =
2477                 sr->u.databaseOrSurDiagnostics;
2478             for (i = 0; i<p->num_records; i++)
2479             {
2480                 record_cache_add(resultset, p->records[i], i + *start,
2481                                  syntax, elementSetName,
2482                                  elementSetName, 0);
2483             }
2484             *count -= i;
2485             if (*count < 0)
2486                 *count = 0;
2487             *start += i;
2488             yaz_log(log_details,
2489                     "handle_records resultset=%p start=%d count=%d",
2490                     resultset, *start, *count);
2491
2492             /* transfer our response to search_nmem .. we need it later */
2493             nmem_transfer(odr_getmem(resultset->odr), nmem);
2494             nmem_destroy(nmem);
2495             if (present_phase && p->num_records == 0)
2496             {
2497                 /* present response and we didn't get any records! */
2498                 Z_NamePlusRecord *myrec =
2499                     zget_surrogateDiagRec(
2500                         resultset->odr, 0,
2501                         YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2502                         "ZOOM C generated. Present phase and no records");
2503                 record_cache_add(resultset, myrec, *start,
2504                                  syntax, elementSetName, 0, 0);
2505             }
2506         }
2507         else if (present_phase)
2508         {
2509             /* present response and we didn't get any records! */
2510             Z_NamePlusRecord *myrec =
2511                 zget_surrogateDiagRec(
2512                     resultset->odr, 0,
2513                     YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2514                     "ZOOM C generated: Present response and no records");
2515             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2516                              0, 0);
2517         }
2518     }
2519 }
2520
2521 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2522 {
2523     handle_records(c, pr->records, 1);
2524 }
2525
2526 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2527                                        Z_Term *term)
2528 {
2529     switch (term->which)
2530     {
2531     case Z_Term_general:
2532         ZOOM_options_setl(opt, name,
2533                           (const char *)(term->u.general->buf),
2534                           term->u.general->len);
2535         break;
2536     case Z_Term_characterString:
2537         ZOOM_options_set(opt, name, term->u.characterString);
2538         break;
2539     case Z_Term_numeric:
2540         ZOOM_options_set_int(opt, name, *term->u.numeric);
2541         break;
2542     }
2543 }
2544
2545 static void handle_queryExpression(ZOOM_options opt, const char *name,
2546                                    Z_QueryExpression *exp)
2547 {
2548     char opt_name[80];
2549
2550     switch (exp->which)
2551     {
2552     case Z_QueryExpression_term:
2553         if (exp->u.term && exp->u.term->queryTerm)
2554         {
2555             sprintf(opt_name, "%s.term", name);
2556             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2557         }
2558         break;
2559     case Z_QueryExpression_query:
2560         break;
2561     }
2562 }
2563
2564 static void handle_search_result(ZOOM_connection c, ZOOM_resultset resultset,
2565                                 Z_OtherInformation *o)
2566 {
2567     int i;
2568     for (i = 0; o && i < o->num_elements; i++)
2569     {
2570         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2571         {
2572             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2573
2574             if (ext->which == Z_External_searchResult1)
2575             {
2576                 int j;
2577                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2578
2579                 if (sr->num)
2580                     ZOOM_options_set_int(
2581                         resultset->options, "searchresult.size", sr->num);
2582
2583                 for (j = 0; j < sr->num; j++)
2584                 {
2585                     Z_SearchInfoReport_s *ent =
2586                         ext->u.searchResult1->elements[j];
2587                     char pref[80];
2588
2589                     sprintf(pref, "searchresult.%d", j);
2590
2591                     if (ent->subqueryId)
2592                     {
2593                         char opt_name[80];
2594                         sprintf(opt_name, "%s.id", pref);
2595                         ZOOM_options_set(resultset->options, opt_name,
2596                                          ent->subqueryId);
2597                     }
2598                     if (ent->subqueryExpression)
2599                     {
2600                         char opt_name[80];
2601                         sprintf(opt_name, "%s.subquery", pref);
2602                         handle_queryExpression(resultset->options, opt_name,
2603                                                ent->subqueryExpression);
2604                     }
2605                     if (ent->subqueryInterpretation)
2606                     {
2607                         char opt_name[80];
2608                         sprintf(opt_name, "%s.interpretation", pref);
2609                         handle_queryExpression(resultset->options, opt_name,
2610                                                ent->subqueryInterpretation);
2611                     }
2612                     if (ent->subqueryRecommendation)
2613                     {
2614                         char opt_name[80];
2615                         sprintf(opt_name, "%s.recommendation", pref);
2616                         handle_queryExpression(resultset->options, opt_name,
2617                                                ent->subqueryRecommendation);
2618                     }
2619                     if (ent->subqueryCount)
2620                     {
2621                         char opt_name[80];
2622                         sprintf(opt_name, "%s.count", pref);
2623                         ZOOM_options_set_int(resultset->options, opt_name,
2624                                              *ent->subqueryCount);
2625                     }
2626                 }
2627             }
2628         }
2629     }
2630 }
2631
2632 static char *get_term_cstr(ODR odr, Z_Term *term) {
2633
2634     switch (term->which) {
2635     case Z_Term_general:
2636             return odr_strdupn(odr, (const char *) term->u.general->buf, (size_t) term->u.general->len);
2637         break;
2638     case Z_Term_characterString:
2639         return odr_strdup(odr, term->u.characterString);
2640     }
2641     return 0;
2642 }
2643
2644 static ZOOM_facet_field get_zoom_facet_field(ODR odr, Z_FacetField *facet) {
2645     int term_index;
2646     struct attrvalues attr_values;
2647     ZOOM_facet_field facet_field = odr_malloc(odr, sizeof(*facet_field));
2648     facetattrs(facet->attributes, &attr_values);
2649     facet_field->facet_name = odr_strdup(odr, attr_values.useattr);
2650     facet_field->num_terms = facet->num_terms;
2651     facet_field->facet_terms = odr_malloc(odr, facet_field->num_terms * sizeof(*facet_field->facet_terms));
2652     for (term_index = 0 ; term_index < facet->num_terms; term_index++) {
2653         struct facet_term_p *facet_term = odr_malloc(odr, sizeof(*facet_field));
2654         Z_FacetTerm *facetTerm = facet->terms[term_index];
2655         facet_term->term = get_term_cstr(odr, facetTerm->term);
2656         /* TODO */
2657         facet_term->frequency = *facetTerm->count;
2658     }
2659     return facet_field;
2660 }
2661
2662 static void handle_facet_result(ZOOM_connection c, ZOOM_resultset resultset,
2663                                 Z_OtherInformation *o)
2664 {
2665     int i;
2666     for (i = 0; o && i < o->num_elements; i++)
2667     {
2668         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2669         {
2670             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2671             if (ext->which == Z_External_userFacets)
2672             {
2673                 int j;
2674                 Z_FacetList *fl = ext->u.facetList;
2675                 resultset->facets = odr_malloc(resultset->odr, fl->num * sizeof(*resultset->facets));
2676                 for (j = 0; j < fl->num; j++)
2677                 {
2678                     resultset->facets[j] = get_zoom_facet_field(resultset->odr, fl->elements[j]);
2679                 }
2680             }
2681         }
2682     }
2683 }
2684
2685
2686 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2687 {
2688     ZOOM_resultset resultset;
2689     ZOOM_Event event;
2690
2691     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2692         return ;
2693
2694     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2695     ZOOM_connection_put_event(c, event);
2696
2697     resultset = c->tasks->u.search.resultset;
2698
2699     if (sr->resultSetStatus)
2700     {
2701         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2702                              *sr->resultSetStatus);
2703     }
2704     if (sr->presentStatus)
2705     {
2706         ZOOM_options_set_int(resultset->options, "presentStatus",
2707                              *sr->presentStatus);
2708     }
2709     handle_search_result(c, resultset, sr->additionalSearchInfo);
2710
2711     handle_facet_result(c, resultset, sr->otherInfo);
2712
2713     resultset->size = *sr->resultCount;
2714     handle_records(c, sr->records, 0);
2715 }
2716
2717 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2718 {
2719     if (res->diagnostics && res->num_diagnostics > 0)
2720         response_diag(c, res->diagnostics[0]);
2721 }
2722
2723 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2724 {
2725     NMEM nmem = odr_extract_mem(c->odr_in);
2726     ZOOM_scanset scan;
2727
2728     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2729         return 0;
2730     scan = c->tasks->u.scan.scan;
2731
2732     if (res->entries && res->entries->nonsurrogateDiagnostics)
2733         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2734     scan->scan_response = res;
2735     scan->srw_scan_response = 0;
2736     nmem_transfer(odr_getmem(scan->odr), nmem);
2737     if (res->stepSize)
2738         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2739     if (res->positionOfTerm)
2740         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2741     if (res->scanStatus)
2742         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2743     if (res->numberOfEntriesReturned)
2744         ZOOM_options_set_int(scan->options, "number",
2745                              *res->numberOfEntriesReturned);
2746     nmem_destroy(nmem);
2747     return 1;
2748 }
2749
2750 static zoom_ret send_sort(ZOOM_connection c,
2751                           ZOOM_resultset resultset)
2752 {
2753     if (c->error)
2754         resultset->r_sort_spec = 0;
2755     if (resultset->r_sort_spec)
2756     {
2757         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2758         Z_SortRequest *req = apdu->u.sortRequest;
2759
2760         req->num_inputResultSetNames = 1;
2761         req->inputResultSetNames = (Z_InternationalString **)
2762             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2763         req->inputResultSetNames[0] =
2764             odr_strdup(c->odr_out, resultset->setname);
2765         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2766         req->sortSequence = resultset->r_sort_spec;
2767         resultset->r_sort_spec = 0;
2768         return send_APDU(c, apdu);
2769     }
2770     return zoom_complete;
2771 }
2772
2773 static zoom_ret send_present(ZOOM_connection c)
2774 {
2775     Z_APDU *apdu = 0;
2776     Z_PresentRequest *req = 0;
2777     int i = 0;
2778     const char *syntax = 0;
2779     const char *elementSetName = 0;
2780     ZOOM_resultset  resultset;
2781     int *start, *count;
2782
2783     if (!c->tasks)
2784     {
2785         yaz_log(log_details, "%p send_present no tasks", c);
2786         return zoom_complete;
2787     }
2788
2789     switch (c->tasks->which)
2790     {
2791     case ZOOM_TASK_SEARCH:
2792         resultset = c->tasks->u.search.resultset;
2793         start = &c->tasks->u.search.start;
2794         count = &c->tasks->u.search.count;
2795         syntax = c->tasks->u.search.syntax;
2796         elementSetName = c->tasks->u.search.elementSetName;
2797         break;
2798     case ZOOM_TASK_RETRIEVE:
2799         resultset = c->tasks->u.retrieve.resultset;
2800         start = &c->tasks->u.retrieve.start;
2801         count = &c->tasks->u.retrieve.count;
2802         syntax = c->tasks->u.retrieve.syntax;
2803         elementSetName = c->tasks->u.retrieve.elementSetName;
2804         break;
2805     default:
2806         return zoom_complete;
2807     }
2808     yaz_log(log_details, "%p send_present start=%d count=%d",
2809             c, *start, *count);
2810
2811     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2812     {
2813         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2814                        "", 0);
2815     }
2816     if (c->error)                  /* don't continue on error */
2817         return zoom_complete;
2818     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2819             resultset, *start, *count);
2820
2821     for (i = 0; i < *count; i++)
2822     {
2823         ZOOM_record rec =
2824             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2825         if (!rec)
2826             break;
2827         else
2828         {
2829             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2830             ZOOM_connection_put_event(c, event);
2831         }
2832     }
2833     *start += i;
2834     *count -= i;
2835
2836     if (*count == 0)
2837     {
2838         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2839         return zoom_complete;
2840     }
2841
2842     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2843     req = apdu->u.presentRequest;
2844
2845     if (i)
2846         yaz_log(log_details, "%p send_present skip=%d", c, i);
2847
2848     *req->resultSetStartPoint = *start + 1;
2849
2850     if (resultset->step > 0 && resultset->step < *count)
2851         *req->numberOfRecordsRequested = resultset->step;
2852     else
2853         *req->numberOfRecordsRequested = *count;
2854
2855     if (*req->numberOfRecordsRequested + *start > resultset->size)
2856         *req->numberOfRecordsRequested = resultset->size - *start;
2857     assert(*req->numberOfRecordsRequested > 0);
2858
2859     if (syntax && *syntax)
2860         req->preferredRecordSyntax =
2861             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2862
2863     if (resultset->schema && *resultset->schema)
2864     {
2865         Z_RecordComposition *compo = (Z_RecordComposition *)
2866             odr_malloc(c->odr_out, sizeof(*compo));
2867
2868         req->recordComposition = compo;
2869         compo->which = Z_RecordComp_complex;
2870         compo->u.complex = (Z_CompSpec *)
2871             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2872         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2873             odr_malloc(c->odr_out, sizeof(bool_t));
2874         *compo->u.complex->selectAlternativeSyntax = 0;
2875
2876         compo->u.complex->generic = (Z_Specification *)
2877             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2878
2879         compo->u.complex->generic->which = Z_Schema_oid;
2880         compo->u.complex->generic->schema.oid = (Odr_oid *)
2881             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2882
2883         if (!compo->u.complex->generic->schema.oid)
2884         {
2885             /* OID wasn't a schema! Try record syntax instead. */
2886
2887             compo->u.complex->generic->schema.oid = (Odr_oid *)
2888                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2889         }
2890         if (elementSetName && *elementSetName)
2891         {
2892             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2893                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2894             compo->u.complex->generic->elementSpec->which =
2895                 Z_ElementSpec_elementSetName;
2896             compo->u.complex->generic->elementSpec->u.elementSetName =
2897                 odr_strdup(c->odr_out, elementSetName);
2898         }
2899         else
2900             compo->u.complex->generic->elementSpec = 0;
2901         compo->u.complex->num_dbSpecific = 0;
2902         compo->u.complex->dbSpecific = 0;
2903         compo->u.complex->num_recordSyntax = 0;
2904         compo->u.complex->recordSyntax = 0;
2905     }
2906     else if (elementSetName && *elementSetName)
2907     {
2908         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2909             odr_malloc(c->odr_out, sizeof(*esn));
2910         Z_RecordComposition *compo = (Z_RecordComposition *)
2911             odr_malloc(c->odr_out, sizeof(*compo));
2912
2913         esn->which = Z_ElementSetNames_generic;
2914         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2915         compo->which = Z_RecordComp_simple;
2916         compo->u.simple = esn;
2917         req->recordComposition = compo;
2918     }
2919     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2920     return send_APDU(c, apdu);
2921 }
2922
2923 ZOOM_API(ZOOM_scanset)
2924     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2925 {
2926     ZOOM_scanset s;
2927     ZOOM_query q = ZOOM_query_create();
2928
2929     ZOOM_query_prefix(q, start);
2930
2931     s = ZOOM_connection_scan1(c, q);
2932     ZOOM_query_destroy(q);
2933     return s;
2934
2935 }
2936
2937 ZOOM_API(ZOOM_scanset)
2938     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2939 {
2940     ZOOM_scanset scan = 0;
2941
2942     if (!q->z_query)
2943         return 0;
2944     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2945     scan->connection = c;
2946     scan->odr = odr_createmem(ODR_DECODE);
2947     scan->options = ZOOM_options_create_with_parent(c->options);
2948     scan->refcount = 1;
2949     scan->scan_response = 0;
2950     scan->srw_scan_response = 0;
2951
2952     scan->query = q;
2953     (q->refcount)++;
2954     scan->databaseNames = set_DatabaseNames(c, c->options,
2955                                             &scan->num_databaseNames,
2956                                             scan->odr);
2957
2958     if (1)
2959     {
2960         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
2961         task->u.scan.scan = scan;
2962
2963         (scan->refcount)++;
2964         if (!c->async)
2965         {
2966             while (ZOOM_event(1, &c))
2967                 ;
2968         }
2969     }
2970     return scan;
2971 }
2972
2973 ZOOM_API(void)
2974     ZOOM_scanset_destroy(ZOOM_scanset scan)
2975 {
2976     if (!scan)
2977         return;
2978     (scan->refcount)--;
2979     if (scan->refcount == 0)
2980     {
2981         ZOOM_query_destroy(scan->query);
2982
2983         odr_destroy(scan->odr);
2984
2985         ZOOM_options_destroy(scan->options);
2986         xfree(scan);
2987     }
2988 }
2989
2990 static zoom_ret send_package(ZOOM_connection c)
2991 {
2992     ZOOM_Event event;
2993
2994     yaz_log(log_details, "%p send_package", c);
2995     if (!c->tasks)
2996         return zoom_complete;
2997     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
2998
2999     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
3000     ZOOM_connection_put_event(c, event);
3001
3002     c->buf_out = c->tasks->u.package->buf_out;
3003     c->len_out = c->tasks->u.package->len_out;
3004
3005     return do_write(c);
3006 }
3007
3008 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
3009 {
3010     ZOOM_scanset scan;
3011     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
3012     Z_ScanRequest *req = apdu->u.scanRequest;
3013
3014     yaz_log(log_details, "%p send_scan", c);
3015     if (!c->tasks)
3016         return zoom_complete;
3017     assert (c->tasks->which == ZOOM_TASK_SCAN);
3018     scan = c->tasks->u.scan.scan;
3019
3020     /* Z39.50 scan can only carry RPN */
3021     if (scan->query->z_query->which == Z_Query_type_1 ||
3022         scan->query->z_query->which == Z_Query_type_101)
3023     {
3024         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
3025         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
3026         if (cp)
3027         {
3028             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
3029             if (cd)
3030             {
3031                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
3032
3033                 yaz_query_charset_convert_rpnquery(
3034                     rpn, c->odr_out, cd);
3035                 yaz_iconv_close(cd);
3036             }
3037         }
3038         req->attributeSet = rpn->attributeSetId;
3039         if (!req->attributeSet)
3040             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
3041         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
3042             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
3043         {
3044             req->termListAndStartPoint =
3045                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
3046         }
3047         else
3048         {
3049             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
3050             return zoom_complete;
3051         }
3052     }
3053     else
3054     {
3055         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3056         return zoom_complete;
3057     }
3058
3059     *req->numberOfTermsRequested =
3060         ZOOM_options_get_int(scan->options, "number", 20);
3061
3062     req->preferredPositionInResponse =
3063         odr_intdup(c->odr_out,
3064                    ZOOM_options_get_int(scan->options, "position", 1));
3065
3066     req->stepSize =
3067         odr_intdup(c->odr_out,
3068                    ZOOM_options_get_int(scan->options, "stepSize", 0));
3069
3070     req->databaseNames = scan->databaseNames;
3071     req->num_databaseNames = scan->num_databaseNames;
3072
3073     return send_APDU(c, apdu);
3074 }
3075
3076 #if YAZ_HAVE_XML2
3077 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3078 {
3079     ZOOM_scanset scan;
3080     Z_SRW_PDU *sr = 0;
3081     const char *option_val = 0;
3082
3083     if (!c->tasks)
3084         return zoom_complete;
3085     assert (c->tasks->which == ZOOM_TASK_SCAN);
3086     scan = c->tasks->u.scan.scan;
3087
3088     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
3089
3090     /* SRU scan can only carry CQL and PQF */
3091     if (scan->query->z_query->which == Z_Query_type_104)
3092     {
3093         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
3094         sr->u.scan_request->scanClause.cql = scan->query->query_string;
3095     }
3096     else if (scan->query->z_query->which == Z_Query_type_1
3097              || scan->query->z_query->which == Z_Query_type_101)
3098     {
3099         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
3100         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
3101     }
3102     else
3103     {
3104         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3105         return zoom_complete;
3106     }
3107
3108     sr->u.scan_request->maximumTerms = odr_intdup(
3109         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
3110
3111     sr->u.scan_request->responsePosition = odr_intdup(
3112         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
3113
3114     option_val = ZOOM_options_get(scan->options, "extraArgs");
3115     yaz_encode_sru_extra(sr, c->odr_out, option_val);
3116     return send_srw(c, sr);
3117 }
3118 #else
3119 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3120 {
3121     return zoom_complete;
3122 }
3123 #endif
3124
3125
3126 ZOOM_API(size_t)
3127     ZOOM_scanset_size(ZOOM_scanset scan)
3128 {
3129     if (!scan)
3130         return 0;
3131
3132     if (scan->scan_response && scan->scan_response->entries)
3133         return scan->scan_response->entries->num_entries;
3134     else if (scan->srw_scan_response)
3135         return scan->srw_scan_response->num_terms;
3136     return 0;
3137 }
3138
3139 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
3140                                 size_t *occ,
3141                                 const char **value_term, size_t *value_len,
3142                                 const char **disp_term, size_t *disp_len)
3143 {
3144     size_t noent = ZOOM_scanset_size(scan);
3145
3146     *value_term = 0;
3147     *value_len = 0;
3148
3149     *disp_term = 0;
3150     *disp_len = 0;
3151
3152     *occ = 0;
3153     if (pos >= noent)
3154         return;
3155     if (scan->scan_response)
3156     {
3157         Z_ScanResponse *res = scan->scan_response;
3158         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
3159         {
3160             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
3161
3162             *value_term = (const char *) t->term->u.general->buf;
3163             *value_len = t->term->u.general->len;
3164             if (t->displayTerm)
3165             {
3166                 *disp_term = t->displayTerm;
3167                 *disp_len = strlen(*disp_term);
3168             }
3169             else if (t->term->which == Z_Term_general)
3170             {
3171                 *disp_term = (const char *) t->term->u.general->buf;
3172                 *disp_len = t->term->u.general->len;
3173             }
3174             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
3175         }
3176     }
3177     if (scan->srw_scan_response)
3178     {
3179         Z_SRW_scanResponse *res = scan->srw_scan_response;
3180         Z_SRW_scanTerm *t = res->terms + pos;
3181         if (t)
3182         {
3183             *value_term = t->value;
3184             *value_len = strlen(*value_term);
3185
3186             if (t->displayTerm)
3187                 *disp_term = t->displayTerm;
3188             else
3189                 *disp_term = t->value;
3190             *disp_len = strlen(*disp_term);
3191             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
3192         }
3193     }
3194 }
3195
3196 ZOOM_API(const char *)
3197     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
3198                       size_t *occ, size_t *len)
3199 {
3200     const char *value_term = 0;
3201     size_t value_len = 0;
3202     const char *disp_term = 0;
3203     size_t disp_len = 0;
3204
3205     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3206                         &disp_term, &disp_len);
3207
3208     *len = value_len;
3209     return value_term;
3210 }
3211
3212 ZOOM_API(const char *)
3213     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
3214                               size_t *occ, size_t *len)
3215 {
3216     const char *value_term = 0;
3217     size_t value_len = 0;
3218     const char *disp_term = 0;
3219     size_t disp_len = 0;
3220
3221     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3222                         &disp_term, &disp_len);
3223
3224     *len = disp_len;
3225     return disp_term;
3226 }
3227
3228 ZOOM_API(const char *)
3229     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3230 {
3231     return ZOOM_options_get(scan->options, key);
3232 }
3233
3234 ZOOM_API(void)
3235     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3236                             const char *val)
3237 {
3238     ZOOM_options_set(scan->options, key, val);
3239 }
3240
3241 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3242 {
3243     const char *str;
3244     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3245     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3246
3247     str = ZOOM_options_get(p->options, "package-name");
3248     if (str && *str)
3249         req->packageName = odr_strdup(p->odr_out, str);
3250
3251     str = ZOOM_options_get(p->options, "user-id");
3252     if (str)
3253         req->userId = odr_strdup_null(p->odr_out, str);
3254
3255     req->packageType = odr_oiddup(p->odr_out, oid);
3256
3257     str = ZOOM_options_get(p->options, "function");
3258     if (str)
3259     {
3260         if (!strcmp (str, "create"))
3261             *req->function = Z_ExtendedServicesRequest_create;
3262         if (!strcmp (str, "delete"))
3263             *req->function = Z_ExtendedServicesRequest_delete;
3264         if (!strcmp (str, "modify"))
3265             *req->function = Z_ExtendedServicesRequest_modify;
3266     }
3267
3268     str = ZOOM_options_get(p->options, "waitAction");
3269     if (str)
3270     {
3271         if (!strcmp (str, "wait"))
3272             *req->waitAction = Z_ExtendedServicesRequest_wait;
3273         if (!strcmp (str, "waitIfPossible"))
3274             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3275         if (!strcmp (str, "dontWait"))
3276             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3277         if (!strcmp (str, "dontReturnPackage"))
3278             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3279     }
3280     return apdu;
3281 }
3282
3283 static const char *ill_array_lookup(void *clientData, const char *idx)
3284 {
3285     ZOOM_package p = (ZOOM_package) clientData;
3286     return ZOOM_options_get(p->options, idx+4);
3287 }
3288
3289 static Z_External *encode_ill_request(ZOOM_package p)
3290 {
3291     ODR out = p->odr_out;
3292     ILL_Request *req;
3293     Z_External *r = 0;
3294     struct ill_get_ctl ctl;
3295
3296     ctl.odr = p->odr_out;
3297     ctl.clientData = p;
3298     ctl.f = ill_array_lookup;
3299
3300     req = ill_get_ILLRequest(&ctl, "ill", 0);
3301
3302     if (!ill_Request(out, &req, 0, 0))
3303     {
3304         int ill_request_size;
3305         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3306         if (ill_request_buf)
3307             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3308         return 0;
3309     }
3310     else
3311     {
3312         int illRequest_size = 0;
3313         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3314
3315         r = (Z_External *) odr_malloc(out, sizeof(*r));
3316         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3317         r->indirect_reference = 0;
3318         r->descriptor = 0;
3319         r->which = Z_External_single;
3320
3321         r->u.single_ASN1_type =
3322             odr_create_Odr_oct(out,
3323                                (unsigned char *)illRequest_buf,
3324                                illRequest_size);
3325     }
3326     return r;
3327 }
3328
3329 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3330 {
3331     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3332     const char *str;
3333     int len;
3334
3335     req->which = Z_IOItemOrder_esRequest;
3336     req->u.esRequest = (Z_IORequest *)
3337         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3338
3339     /* to keep part ... */
3340     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3341         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3342     req->u.esRequest->toKeep->supplDescription = 0;
3343     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3344         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3345
3346     str = ZOOM_options_get(p->options, "contact-name");
3347     req->u.esRequest->toKeep->contact->name =
3348         odr_strdup_null(p->odr_out, str);
3349
3350     str = ZOOM_options_get(p->options, "contact-phone");
3351     req->u.esRequest->toKeep->contact->phone =
3352         odr_strdup_null(p->odr_out, str);
3353
3354     str = ZOOM_options_get(p->options, "contact-email");
3355     req->u.esRequest->toKeep->contact->email =
3356         odr_strdup_null(p->odr_out, str);
3357
3358     req->u.esRequest->toKeep->addlBilling = 0;
3359
3360     /* not to keep part ... */
3361     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3362         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3363
3364     str = ZOOM_options_get(p->options, "itemorder-setname");
3365     if (!str)
3366         str = "default";
3367
3368     if (!*str)
3369         req->u.esRequest->notToKeep->resultSetItem = 0;
3370     else
3371     {
3372         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3373             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3374
3375         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3376             odr_strdup(p->odr_out, str);
3377         req->u.esRequest->notToKeep->resultSetItem->item =
3378             odr_intdup(p->odr_out, 0);
3379
3380         str = ZOOM_options_get(p->options, "itemorder-item");
3381         *req->u.esRequest->notToKeep->resultSetItem->item =
3382             (str ? atoi(str) : 1);
3383     }
3384
3385     str = ZOOM_options_getl(p->options, "doc", &len);
3386     if (str)
3387     {
3388         req->u.esRequest->notToKeep->itemRequest =
3389             z_ext_record_xml(p->odr_out, str, len);
3390     }
3391     else
3392         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3393
3394     return req;
3395 }
3396
3397 Z_APDU *create_admin_package(ZOOM_package p, int type,
3398                              Z_ESAdminOriginPartToKeep **toKeepP,
3399                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3400 {
3401     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3402     if (apdu)
3403     {
3404         Z_ESAdminOriginPartToKeep  *toKeep;
3405         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3406         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3407         const char *first_db = "Default";
3408         int num_db;
3409         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3410                                       p->odr_out);
3411         if (num_db > 0)
3412             first_db = db[0];
3413
3414         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3415         r->descriptor = 0;
3416         r->indirect_reference = 0;
3417         r->which = Z_External_ESAdmin;
3418
3419         r->u.adminService = (Z_Admin *)
3420             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3421         r->u.adminService->which = Z_Admin_esRequest;
3422         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3423             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3424
3425         toKeep = r->u.adminService->u.esRequest->toKeep =
3426             (Z_ESAdminOriginPartToKeep *)
3427             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3428         toKeep->which = type;
3429         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3430         toKeep->u.create = odr_nullval();
3431         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3432
3433         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3434             (Z_ESAdminOriginPartNotToKeep *)
3435             odr_malloc(p->odr_out,
3436                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3437         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3438         notToKeep->u.recordsWillFollow = odr_nullval();
3439         if (toKeepP)
3440             *toKeepP = toKeep;
3441         if (notToKeepP)
3442             *notToKeepP = notToKeep;
3443     }
3444     return apdu;
3445 }
3446
3447 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3448 {
3449     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3450     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3451     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3452     int len;
3453     const char *doc = ZOOM_options_getl(p->options, "doc", &len);
3454
3455     if (!doc)
3456     {
3457         doc = "";
3458         len = 0;
3459     }
3460
3461     req->taskSpecificParameters = ext;
3462     ext->direct_reference = req->packageType;
3463     ext->descriptor = 0;
3464     ext->indirect_reference = 0;
3465
3466     ext->which = Z_External_octet;
3467     ext->u.single_ASN1_type =
3468         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc, len);
3469     return apdu;
3470 }
3471
3472 static Z_APDU *create_update_package(ZOOM_package p)
3473 {
3474     Z_APDU *apdu = 0;
3475     const char *first_db = "Default";
3476     int num_db;
3477     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3478     const char *action = ZOOM_options_get(p->options, "action");
3479     int recordIdOpaque_len;
3480     const char *recordIdOpaque = ZOOM_options_getl(p->options, "recordIdOpaque",
3481         &recordIdOpaque_len);
3482     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3483     int record_len;
3484     const char *record_buf = ZOOM_options_getl(p->options, "record",
3485         &record_len);
3486     int recordOpaque_len;
3487     const char *recordOpaque_buf = ZOOM_options_getl(p->options, "recordOpaque",
3488         &recordOpaque_len);
3489     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3490     const char *version = ZOOM_options_get(p->options, "updateVersion");
3491
3492     const char *correlationInfo_note =
3493         ZOOM_options_get(p->options, "correlationInfo.note");
3494     const char *correlationInfo_id =
3495         ZOOM_options_get(p->options, "correlationInfo.id");
3496     int action_no = -1;
3497     Odr_oid *syntax_oid = 0;
3498     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3499
3500     if (!version)
3501         version = "3";
3502     if (!syntax_str)
3503         syntax_str = "xml";
3504     if (!record_buf && !recordOpaque_buf)
3505     {
3506         record_buf = "void";
3507         record_len = 4;
3508         syntax_str = "SUTRS";
3509     }
3510
3511     if (syntax_str)
3512     {
3513         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3514                                            CLASS_RECSYN, syntax_str,
3515                                            p->odr_out);
3516     }
3517     if (!syntax_oid)
3518         return 0;
3519
3520     if (num_db > 0)
3521         first_db = db[0];
3522
3523     switch(*version)
3524     {
3525     case '1':
3526         package_oid = yaz_oid_extserv_database_update_first_version;
3527         /* old update does not support specialUpdate */
3528         if (!action)
3529             action = "recordInsert";
3530         break;
3531     case '2':
3532         if (!action)
3533             action = "specialUpdate";
3534         package_oid = yaz_oid_extserv_database_update_second_version;
3535         break;
3536     case '3':
3537         if (!action)
3538             action = "specialUpdate";
3539         package_oid = yaz_oid_extserv_database_update;
3540         break;
3541     default:
3542         return 0;
3543     }
3544
3545     if (!strcmp(action, "recordInsert"))
3546         action_no = Z_IUOriginPartToKeep_recordInsert;
3547     else if (!strcmp(action, "recordReplace"))
3548         action_no = Z_IUOriginPartToKeep_recordReplace;
3549     else if (!strcmp(action, "recordDelete"))
3550         action_no = Z_IUOriginPartToKeep_recordDelete;
3551     else if (!strcmp(action, "elementUpdate"))
3552         action_no = Z_IUOriginPartToKeep_elementUpdate;
3553     else if (!strcmp(action, "specialUpdate"))
3554         action_no = Z_IUOriginPartToKeep_specialUpdate;
3555     else
3556         return 0;
3557
3558     apdu = create_es_package(p, package_oid);
3559     if (apdu)
3560     {
3561         Z_IUOriginPartToKeep *toKeep;
3562         Z_IUSuppliedRecords *notToKeep;
3563         Z_External *r = (Z_External *)
3564             odr_malloc(p->odr_out, sizeof(*r));
3565         const char *elementSetName =
3566             ZOOM_options_get(p->options, "elementSetName");
3567
3568         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3569
3570         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3571         r->descriptor = 0;
3572         r->which = Z_External_update;
3573         r->indirect_reference = 0;
3574         r->u.update = (Z_IUUpdate *)
3575             odr_malloc(p->odr_out, sizeof(*r->u.update));
3576
3577         r->u.update->which = Z_IUUpdate_esRequest;
3578         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3579             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3580         toKeep = r->u.update->u.esRequest->toKeep =
3581             (Z_IUOriginPartToKeep *)
3582             odr_malloc(p->odr_out, sizeof(*toKeep));
3583
3584         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3585         toKeep->schema = 0;
3586
3587         toKeep->elementSetName = odr_strdup_null(p->odr_out, elementSetName);
3588
3589         toKeep->actionQualifier = 0;
3590         toKeep->action = odr_intdup(p->odr_out, action_no);
3591
3592         notToKeep = r->u.update->u.esRequest->notToKeep =
3593             (Z_IUSuppliedRecords *)
3594             odr_malloc(p->odr_out, sizeof(*notToKeep));
3595         notToKeep->num = 1;
3596         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3597             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3598         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3599             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3600         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3601         if (recordIdOpaque)
3602         {
3603             notToKeep->elements[0]->u.opaque =
3604                 odr_create_Odr_oct(p->odr_out,
3605                                    (const unsigned char *) recordIdOpaque,
3606                                    recordIdOpaque_len);
3607         }
3608         else if (recordIdNumber)
3609         {
3610             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3611
3612             notToKeep->elements[0]->u.number =
3613                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3614         }
3615         else
3616             notToKeep->elements[0]->u.opaque = 0;
3617         notToKeep->elements[0]->supplementalId = 0;
3618         if (correlationInfo_note || correlationInfo_id)
3619         {
3620             Z_IUCorrelationInfo *ci;
3621             ci = notToKeep->elements[0]->correlationInfo =
3622                 (Z_IUCorrelationInfo *) odr_malloc(p->odr_out, sizeof(*ci));
3623             ci->note = odr_strdup_null(p->odr_out, correlationInfo_note);
3624             ci->id = correlationInfo_id ?
3625                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3626         }
3627         else
3628             notToKeep->elements[0]->correlationInfo = 0;
3629         if (recordOpaque_buf)
3630         {
3631             notToKeep->elements[0]->record =
3632                 z_ext_record_oid_any(p->odr_out, syntax_oid,
3633                                  recordOpaque_buf, recordOpaque_len);
3634         }
3635         else
3636         {
3637             notToKeep->elements[0]->record =
3638                 z_ext_record_oid(p->odr_out, syntax_oid,
3639                                  record_buf, record_len);
3640         }
3641     }
3642     if (0 && apdu)
3643     {
3644         ODR print = odr_createmem(ODR_PRINT);
3645
3646         z_APDU(print, &apdu, 0, 0);
3647         odr_destroy(print);
3648     }
3649     return apdu;
3650 }
3651
3652 ZOOM_API(void)
3653     ZOOM_package_send(ZOOM_package p, const char *type)
3654 {
3655     Z_APDU *apdu = 0;
3656     ZOOM_connection c;
3657     if (!p)
3658         return;
3659     c = p->connection;
3660     odr_reset(p->odr_out);
3661     xfree(p->buf_out);
3662     p->buf_out = 0;
3663     if (!strcmp(type, "itemorder"))
3664     {
3665         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3666         if (apdu)
3667         {
3668             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3669
3670             r->direct_reference =
3671                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3672             r->descriptor = 0;
3673             r->which = Z_External_itemOrder;
3674             r->indirect_reference = 0;
3675             r->u.itemOrder = encode_item_order(p);
3676
3677             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3678         }
3679     }
3680     else if (!strcmp(type, "create"))  /* create database */
3681     {
3682         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3683                                     0, 0);
3684     }
3685     else if (!strcmp(type, "drop"))  /* drop database */
3686     {
3687         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3688                                     0, 0);
3689     }
3690     else if (!strcmp(type, "commit"))  /* commit changes */
3691     {
3692         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3693                                     0, 0);
3694     }
3695     else if (!strcmp(type, "update")) /* update record(s) */
3696     {
3697         apdu = create_update_package(p);
3698     }
3699     else if (!strcmp(type, "xmlupdate"))
3700     {
3701         apdu = create_xmlupdate_package(p);
3702     }
3703     if (apdu)
3704     {
3705         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3706         {
3707             char *buf;
3708
3709             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3710             task->u.package = p;
3711             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3712             p->buf_out = (char *) xmalloc(p->len_out);
3713             memcpy(p->buf_out, buf, p->len_out);
3714
3715             (p->refcount)++;
3716             if (!c->async)
3717             {
3718                 while (ZOOM_event(1, &c))
3719                     ;
3720             }
3721         }
3722     }
3723 }
3724
3725 ZOOM_API(ZOOM_package)
3726     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3727 {
3728     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3729
3730     p->connection = c;
3731     p->odr_out = odr_createmem(ODR_ENCODE);
3732     p->options = ZOOM_options_create_with_parent2(options, c->options);
3733     p->refcount = 1;
3734     p->buf_out = 0;
3735     p->len_out = 0;
3736     return p;
3737 }
3738
3739 ZOOM_API(void)
3740     ZOOM_package_destroy(ZOOM_package p)
3741 {
3742     if (!p)
3743         return;
3744     (p->refcount)--;
3745     if (p->refcount == 0)
3746     {
3747         odr_destroy(p->odr_out);
3748         xfree(p->buf_out);
3749
3750         ZOOM_options_destroy(p->options);
3751         xfree(p);
3752     }
3753 }
3754
3755 ZOOM_API(const char *)
3756     ZOOM_package_option_get(ZOOM_package p, const char *key)
3757 {
3758     return ZOOM_options_get(p->options, key);
3759 }
3760
3761 ZOOM_API(const char *)
3762     ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
3763 {
3764     return ZOOM_options_getl(p->options, key, lenp);
3765 }
3766
3767 ZOOM_API(void)
3768     ZOOM_package_option_set(ZOOM_package p, const char *key,
3769                             const char *val)
3770 {
3771     ZOOM_options_set(p->options, key, val);
3772 }
3773
3774 ZOOM_API(void)
3775     ZOOM_package_option_setl(ZOOM_package p, const char *key,
3776                              const char *val, int len)
3777 {
3778     ZOOM_options_setl(p->options, key, val, len);
3779 }
3780
3781 ZOOM_API(int)
3782     ZOOM_connection_exec_task(ZOOM_connection c)
3783 {
3784     ZOOM_task task = c->tasks;
3785     zoom_ret ret = zoom_complete;
3786
3787     if (!task)
3788         return 0;
3789     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3790             c, task->which, task->running);
3791     if (c->error != ZOOM_ERROR_NONE)
3792     {
3793         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3794                 "removing tasks because of error = %d", c, c->error);
3795         ZOOM_connection_remove_tasks(c);
3796         return 0;
3797     }
3798     if (task->running)
3799     {
3800         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3801                 "task already running", c);
3802         return 0;
3803     }
3804     task->running = 1;
3805     ret = zoom_complete;
3806     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3807     {
3808         switch (task->which)
3809         {
3810         case ZOOM_TASK_SEARCH:
3811             if (c->proto == PROTO_HTTP)
3812                 ret = ZOOM_connection_srw_send_search(c);
3813             else
3814                 ret = ZOOM_connection_send_search(c);
3815             break;
3816         case ZOOM_TASK_RETRIEVE:
3817             if (c->proto == PROTO_HTTP)
3818                 ret = ZOOM_connection_srw_send_search(c);
3819             else
3820                 ret = send_present(c);
3821             break;
3822         case ZOOM_TASK_CONNECT:
3823             ret = do_connect(c);
3824             break;
3825         case ZOOM_TASK_SCAN:
3826             if (c->proto == PROTO_HTTP)
3827                 ret = ZOOM_connection_srw_send_scan(c);
3828             else
3829                 ret = ZOOM_connection_send_scan(c);
3830             break;
3831         case ZOOM_TASK_PACKAGE:
3832             ret = send_package(c);
3833             break;
3834         case ZOOM_TASK_SORT:
3835             c->tasks->u.sort.resultset->r_sort_spec =
3836                 c->tasks->u.sort.q->sort_spec;
3837             ret = send_sort(c, c->tasks->u.sort.resultset);
3838             break;
3839         }
3840     }
3841     else
3842     {
3843         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3844                 "remove tasks because no connection exist", c);
3845         ZOOM_connection_remove_tasks(c);
3846     }
3847     if (ret == zoom_complete)
3848     {
3849         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3850                 "task removed (complete)", c);
3851         ZOOM_connection_remove_task(c);
3852         return 0;
3853     }
3854     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3855             "task pending", c);
3856     return 1;
3857 }
3858
3859 static zoom_ret send_sort_present(ZOOM_connection c)
3860 {
3861     zoom_ret r = zoom_complete;
3862
3863     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3864         r = send_sort(c, c->tasks->u.search.resultset);
3865     if (r == zoom_complete)
3866         r = send_present(c);
3867     return r;
3868 }
3869
3870 static int es_response_taskpackage_update(ZOOM_connection c,
3871                 Z_IUUpdateTaskPackage *utp)
3872 {
3873         if (utp && utp->targetPart)
3874         {
3875                 Z_IUTargetPart *targetPart = utp->targetPart;
3876                 switch ( *targetPart->updateStatus ) {
3877                         case Z_IUTargetPart_success:
3878                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "success");
3879                                 break;
3880                         case Z_IUTargetPart_partial:
3881                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "partial");
3882                                 break;
3883                         case Z_IUTargetPart_failure:
3884                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "failure");
3885                                 if (targetPart->globalDiagnostics && targetPart->num_globalDiagnostics > 0)
3886                                         response_diag(c, targetPart->globalDiagnostics[0]);
3887                                 break;
3888                 }
3889                 // NOTE: Individual record status, surrogate diagnostics, and supplemental diagnostics ARE NOT REPORTED.
3890         }
3891     return 1;
3892 }
3893
3894 static int es_response_taskpackage(ZOOM_connection c,
3895                                    Z_TaskPackage *taskPackage)
3896 {
3897         // targetReference
3898         Odr_oct *id = taskPackage->targetReference;
3899         if (id)
3900                 ZOOM_options_setl(c->tasks->u.package->options,
3901                                                         "targetReference", (char*) id->buf, id->len);
3902
3903         // taskStatus
3904         switch ( *taskPackage->taskStatus ) {
3905                 case Z_TaskPackage_pending:
3906                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "pending");
3907                         break;
3908                 case Z_TaskPackage_active:
3909                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "active");
3910                         break;
3911                 case Z_TaskPackage_complete:
3912                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "complete");
3913                         break;
3914                 case Z_TaskPackage_aborted:
3915                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "aborted");
3916                         if ( taskPackage->num_packageDiagnostics && taskPackage->packageDiagnostics )
3917                                 response_diag(c, taskPackage->packageDiagnostics[0]);
3918                         break;
3919         }
3920
3921         // taskSpecificParameters
3922         // NOTE: Only Update implemented, no others.
3923         if ( taskPackage->taskSpecificParameters->which == Z_External_update ) {
3924                         Z_IUUpdateTaskPackage *utp = taskPackage->taskSpecificParameters->u.update->u.taskPackage;
3925                         es_response_taskpackage_update(c, utp);
3926         }
3927         return 1;
3928 }
3929
3930
3931 static int es_response(ZOOM_connection c,
3932                        Z_ExtendedServicesResponse *res)
3933 {
3934     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3935         return 0;
3936     switch (*res->operationStatus) {
3937         case Z_ExtendedServicesResponse_done:
3938             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "done");
3939             break;
3940         case Z_ExtendedServicesResponse_accepted:
3941             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "accepted");
3942             break;
3943         case Z_ExtendedServicesResponse_failure:
3944             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "failure");
3945             if (res->diagnostics && res->num_diagnostics > 0)
3946                 response_diag(c, res->diagnostics[0]);
3947             break;
3948     }
3949     if (res->taskPackage &&
3950         res->taskPackage->which == Z_External_extendedService)
3951     {
3952         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
3953         es_response_taskpackage(c, taskPackage);
3954     }
3955     if (res->taskPackage &&
3956         res->taskPackage->which == Z_External_octet)
3957     {
3958         Odr_oct *doc = res->taskPackage->u.octet_aligned;
3959         ZOOM_options_setl(c->tasks->u.package->options,
3960                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
3961     }
3962     return 1;
3963 }
3964
3965 static void interpret_init_diag(ZOOM_connection c,
3966                                 Z_DiagnosticFormat *diag)
3967 {
3968     if (diag->num > 0)
3969     {
3970         Z_DiagnosticFormat_s *ds = diag->elements[0];
3971         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
3972             response_default_diag(c, ds->u.defaultDiagRec);
3973     }
3974 }
3975
3976
3977 static void interpret_otherinformation_field(ZOOM_connection c,
3978                                              Z_OtherInformation *ui)
3979 {
3980     int i;
3981     for (i = 0; i < ui->num_elements; i++)
3982     {
3983         Z_OtherInformationUnit *unit = ui->list[i];
3984         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
3985             unit->information.externallyDefinedInfo &&
3986             unit->information.externallyDefinedInfo->which ==
3987             Z_External_diag1)
3988         {
3989             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
3990         }
3991     }
3992 }
3993
3994
3995 static void set_init_option(const char *name, void *clientData) {
3996     ZOOM_connection c = (ZOOM_connection) clientData;
3997     char buf[80];
3998
3999     sprintf(buf, "init_opt_%.70s", name);
4000     ZOOM_connection_option_set(c, buf, "1");
4001 }
4002
4003
4004 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
4005 {
4006     Z_InitResponse *initrs;
4007
4008     ZOOM_connection_set_mask(c, 0);
4009     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
4010     switch(apdu->which)
4011     {
4012     case Z_APDU_initResponse:
4013         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
4014         initrs = apdu->u.initResponse;
4015         ZOOM_connection_option_set(c, "serverImplementationId",
4016                                    initrs->implementationId ?
4017                                    initrs->implementationId : "");
4018         ZOOM_connection_option_set(c, "serverImplementationName",
4019                                    initrs->implementationName ?
4020                                    initrs->implementationName : "");
4021         ZOOM_connection_option_set(c, "serverImplementationVersion",
4022                                    initrs->implementationVersion ?
4023                                    initrs->implementationVersion : "");
4024         /* Set the three old options too, for old applications */
4025         ZOOM_connection_option_set(c, "targetImplementationId",
4026                                    initrs->implementationId ?
4027                                    initrs->implementationId : "");
4028         ZOOM_connection_option_set(c, "targetImplementationName",
4029                                    initrs->implementationName ?
4030                                    initrs->implementationName : "");
4031         ZOOM_connection_option_set(c, "targetImplementationVersion",
4032                                    initrs->implementationVersion ?
4033                                    initrs->implementationVersion : "");
4034
4035         /* Make initrs->options available as ZOOM-level options */
4036         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
4037
4038         if (!*initrs->result)
4039         {
4040             Z_External *uif = initrs->userInformationField;
4041
4042             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
4043
4044             if (uif && uif->which == Z_External_userInfo1)
4045                 interpret_otherinformation_field(c, uif->u.userInfo1);
4046         }
4047         else
4048         {
4049             char *cookie =
4050                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
4051                                       yaz_oid_userinfo_cookie, 1, 0);
4052             xfree(c->cookie_in);
4053             c->cookie_in = 0;
4054             if (cookie)
4055                 c->cookie_in = xstrdup(cookie);
4056             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
4057                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
4058                 c->support_named_resultsets = 1;
4059             if (c->tasks)
4060             {
4061                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4062                 ZOOM_connection_remove_task(c);
4063             }
4064             ZOOM_connection_exec_task(c);
4065         }
4066         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
4067         {
4068             NMEM tmpmem = nmem_create();
4069             Z_CharSetandLanguageNegotiation *p =
4070                 yaz_get_charneg_record(initrs->otherInfo);
4071
4072             if (p)
4073             {
4074                 char *charset = NULL, *lang = NULL;
4075                 int sel;
4076
4077                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
4078                 yaz_log(log_details, "%p recv_apdu target accepted: "
4079                         "charset %s, language %s, select %d",
4080                         c,
4081                         charset ? charset : "none", lang ? lang : "none", sel);
4082                 if (charset)
4083                     ZOOM_connection_option_set(c, "negotiation-charset",
4084                                                charset);
4085                 if (lang)
4086                     ZOOM_connection_option_set(c, "negotiation-lang",
4087                                                lang);
4088
4089                 ZOOM_connection_option_set(
4090                     c,  "negotiation-charset-in-effect-for-records",
4091                     (sel != 0) ? "1" : "0");
4092                 nmem_destroy(tmpmem);
4093             }
4094         }
4095         break;
4096     case Z_APDU_searchResponse:
4097         yaz_log(log_api, "%p recv_apdu Search response", c);
4098         handle_search_response(c, apdu->u.searchResponse);
4099         if (send_sort_present(c) == zoom_complete)
4100             ZOOM_connection_remove_task(c);
4101         break;
4102     case Z_APDU_presentResponse:
4103         yaz_log(log_api, "%p recv_apdu Present response", c);
4104         handle_present_response(c, apdu->u.presentResponse);
4105         if (send_present(c) == zoom_complete)
4106             ZOOM_connection_remove_task(c);
4107         break;
4108     case Z_APDU_sortResponse:
4109         yaz_log(log_api, "%p recv_apdu Sort response", c);
4110         sort_response(c, apdu->u.sortResponse);
4111         if (send_present(c) == zoom_complete)
4112             ZOOM_connection_remove_task(c);
4113         break;
4114     case Z_APDU_scanResponse:
4115         yaz_log(log_api, "%p recv_apdu Scan response", c);
4116         scan_response(c, apdu->u.scanResponse);
4117         ZOOM_connection_remove_task(c);
4118         break;
4119     case Z_APDU_extendedServicesResponse:
4120         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
4121         es_response(c, apdu->u.extendedServicesResponse);
4122         ZOOM_connection_remove_task(c);
4123         break;
4124     case Z_APDU_close:
4125         yaz_log(log_api, "%p recv_apdu Close PDU", c);
4126         if (!ZOOM_test_reconnect(c))
4127         {
4128             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4129             do_close(c);
4130         }
4131         break;
4132     default:
4133         yaz_log(log_api, "%p Received unknown PDU", c);
4134         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4135         do_close(c);
4136     }
4137 }
4138
4139 #if YAZ_HAVE_XML2
4140 static zoom_ret handle_srw_response(ZOOM_connection c,
4141                                     Z_SRW_searchRetrieveResponse *res)
4142 {
4143     ZOOM_resultset resultset = 0;
4144     int i;
4145     NMEM nmem;
4146     ZOOM_Event event;
4147     int *start, *count;
4148     const char *syntax, *elementSetName;
4149
4150     if (!c->tasks)
4151         return zoom_complete;
4152
4153     switch(c->tasks->which)
4154     {
4155     case ZOOM_TASK_SEARCH:
4156         resultset = c->tasks->u.search.resultset;
4157         start = &c->tasks->u.search.start;
4158         count = &c->tasks->u.search.count;
4159         syntax = c->tasks->u.search.syntax;
4160         elementSetName = c->tasks->u.search.elementSetName;
4161
4162         if (!c->tasks->u.search.recv_search_fired)
4163         {
4164             event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
4165             ZOOM_connection_put_event(c, event);
4166             c->tasks->u.search.recv_search_fired = 1;
4167         }
4168         break;
4169     case ZOOM_TASK_RETRIEVE:
4170         resultset = c->tasks->u.retrieve.resultset;
4171         start = &c->tasks->u.retrieve.start;
4172         count = &c->tasks->u.retrieve.count;
4173         syntax = c->tasks->u.retrieve.syntax;
4174         elementSetName = c->tasks->u.retrieve.elementSetName;
4175         break;
4176     default:
4177         return zoom_complete;
4178     }
4179
4180     resultset->size = 0;
4181
4182     if (res->resultSetId)
4183         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
4184
4185     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
4186
4187     if (res->num_diagnostics > 0)
4188     {
4189         set_SRU_error(c, &res->diagnostics[0]);
4190     }
4191     else
4192     {
4193         if (res->numberOfRecords)
4194             resultset->size = *res->numberOfRecords;
4195         for (i = 0; i<res->num_records; i++)
4196         {
4197             int pos;
4198             Z_SRW_record *sru_rec;
4199             Z_SRW_diagnostic *diag = 0;
4200             int num_diag;
4201
4202             Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
4203                 odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
4204
4205             if (res->records[i].recordPosition &&
4206                 *res->records[i].recordPosition > 0)
4207                 pos = *res->records[i].recordPosition - 1;
4208             else
4209                 pos = *start + i;
4210
4211             sru_rec = &res->records[i];
4212
4213             npr->databaseName = 0;
4214             npr->which = Z_NamePlusRecord_databaseRecord;
4215             npr->u.databaseRecord = (Z_External *)
4216                 odr_malloc(c->odr_in, sizeof(Z_External));
4217             npr->u.databaseRecord->descriptor = 0;
4218             npr->u.databaseRecord->direct_reference =
4219                 odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
4220             npr->u.databaseRecord->which = Z_External_octet;
4221
4222             npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
4223                 odr_malloc(c->odr_in, sizeof(Odr_oct));
4224             npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
4225                 sru_rec->recordData_buf;
4226             npr->u.databaseRecord->u.octet_aligned->len =
4227                 npr->u.databaseRecord->u.octet_aligned->size =
4228                 sru_rec->recordData_len;
4229
4230             if (sru_rec->recordSchema
4231                 && !strcmp(sru_rec->recordSchema,
4232                            "info:srw/schema/1/diagnostics-v1.1"))
4233             {
4234                 sru_decode_surrogate_diagnostics(sru_rec->recordData_buf,
4235                                                  sru_rec->recordData_len,
4236                                                  &diag, &num_diag,
4237                                                  resultset->odr);
4238             }
4239             record_cache_add(resultset, npr, pos, syntax, elementSetName,
4240                              sru_rec->recordSchema, diag);
4241         }
4242         *count -= i;
4243         *start += i;
4244         if (*count + *start > resultset->size)
4245             *count = resultset->size - *start;
4246         if (*count < 0)
4247             *count = 0;
4248
4249         nmem = odr_extract_mem(c->odr_in);
4250         nmem_transfer(odr_getmem(resultset->odr), nmem);
4251         nmem_destroy(nmem);
4252
4253         if (*count > 0)
4254             return ZOOM_connection_srw_send_search(c);
4255     }
4256     return zoom_complete;
4257 }
4258 #endif
4259
4260 #if YAZ_HAVE_XML2
4261 static void handle_srw_scan_response(ZOOM_connection c,
4262                                      Z_SRW_scanResponse *res)
4263 {
4264     NMEM nmem = odr_extract_mem(c->odr_in);
4265     ZOOM_scanset scan;
4266
4267     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
4268         return;
4269     scan = c->tasks->u.scan.scan;
4270
4271     if (res->num_diagnostics > 0)
4272         set_SRU_error(c, &res->diagnostics[0]);
4273
4274     scan->scan_response = 0;
4275     scan->srw_scan_response = res;
4276     nmem_transfer(odr_getmem(scan->odr), nmem);
4277
4278     ZOOM_options_set_int(scan->options, "number", res->num_terms);
4279     nmem_destroy(nmem);
4280 }
4281 #endif
4282
4283 #if YAZ_HAVE_XML2
4284 static Z_GDU *get_HTTP_Request_url(ODR odr, const char *url)
4285 {
4286     Z_GDU *p = z_get_HTTP_Request(odr);
4287     const char *host = url;
4288     const char *cp0 = strstr(host, "://");
4289     const char *cp1 = 0;
4290     if (cp0)
4291         cp0 = cp0+3;
4292     else
4293         cp0 = host;
4294
4295     cp1 = strchr(cp0, '/');
4296     if (!cp1)
4297         cp1 = cp0 + strlen(cp0);
4298
4299     if (cp0 && cp1)
4300     {
4301         char *h = (char*) odr_malloc(odr, cp1 - cp0 + 1);
4302         memcpy (h, cp0, cp1 - cp0);
4303         h[cp1-cp0] = '\0';
4304         z_HTTP_header_add(odr, &p->u.HTTP_Request->headers, "Host", h);
4305     }
4306     p->u.HTTP_Request->path = odr_strdup(odr, *cp1 ? cp1 : "/");
4307     return p;
4308 }
4309
4310 static zoom_ret send_SRW_redirect(ZOOM_connection c, const char *uri,
4311                                   Z_HTTP_Response *cookie_hres)
4312 {
4313     struct Z_HTTP_Header *h;
4314     Z_GDU *gdu = get_HTTP_Request_url(c->odr_out, uri);
4315     char *combined_cookies;
4316     int combined_cookies_len = 0;
4317
4318     gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
4319     z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
4320                       "text/xml");
4321
4322     for (h = cookie_hres->headers; h; h = h->next)
4323     {
4324         if (!strcmp(h->name, "Set-Cookie"))
4325         {
4326             char *cp;
4327
4328             if (!(cp = strchr(h->value, ';')))
4329                 cp = h->value + strlen(h->value);
4330             if (cp - h->value >= 1) {
4331                 combined_cookies = xrealloc(combined_cookies, combined_cookies_len + cp - h->value + 3);
4332                 memcpy(combined_cookies+combined_cookies_len, h->value, cp - h->value);
4333                 combined_cookies[combined_cookies_len + cp - h->value] = '\0';
4334                 strcat(combined_cookies,"; ");
4335                 combined_cookies_len = strlen(combined_cookies);
4336             }
4337         }
4338     }
4339
4340     if (combined_cookies_len)
4341     {
4342         z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers,
4343                           "Cookie", combined_cookies);
4344         xfree(combined_cookies);
4345     }
4346
4347     if (c->user && c->password)
4348     {
4349         z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
4350                                      c->user, c->password);
4351     }
4352     if (!z_GDU(c->odr_out, &gdu, 0, 0))
4353         return zoom_complete;
4354     if (c->odr_print)
4355         z_GDU(c->odr_print, &gdu, 0, 0);
4356     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
4357
4358     odr_reset(c->odr_out);
4359     return do_write(c);
4360 }
4361
4362 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
4363 {
4364     zoom_ret cret = zoom_complete;
4365     int ret = -1;
4366     const char *addinfo = 0;
4367     const char *connection_head = z_HTTP_header_lookup(hres->headers,
4368                                                        "Connection");
4369     const char *location;
4370
4371     ZOOM_connection_set_mask(c, 0);
4372     yaz_log(log_details, "%p handle_http", c);
4373
4374     if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
4375         && (location = z_HTTP_header_lookup(hres->headers, "Location")))
4376     {
4377         c->no_redirects++;
4378         if (c->no_redirects > 10)
4379         {
4380             set_HTTP_error(c, hres->code, 0, 0);
4381             c->no_redirects = 0;
4382             do_close(c);
4383         }
4384         else
4385         {
4386             /* since redirect may change host we just reconnect. A smarter
4387                implementation might check whether it's the same server */
4388             do_connect_host(c, location, 0);
4389             send_SRW_redirect(c, location, hres);
4390             /* we're OK for now. Operation is not really complete */
4391             ret = 0;
4392             cret = zoom_pending;
4393         }
4394     }
4395     else
4396     {   /* not redirect (normal response) */
4397         if (!yaz_srw_check_content_type(hres))
4398             addinfo = "content-type";
4399         else
4400         {
4401             Z_SOAP *soap_package = 0;
4402             ODR o = c->odr_in;
4403             Z_SOAP_Handler soap_handlers[2] = {
4404                 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
4405                 {0, 0, 0}
4406             };
4407             ret = z_soap_codec(o, &soap_package,
4408                                &hres->content_buf, &hres->content_len,
4409                                soap_handlers);
4410             if (!ret && soap_package->which == Z_SOAP_generic &&
4411                 soap_package->u.generic->no == 0)
4412             {
4413                 Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
4414
4415                 ZOOM_options_set(c->options, "sru_version", sr->srw_version);
4416                 ZOOM_options_setl(c->options, "sru_extra_response_data",
4417                                   sr->extraResponseData_buf, sr->extraResponseData_len);
4418                 if (sr->which == Z_SRW_searchRetrieve_response)
4419                     cret = handle_srw_response(c, sr->u.response);
4420                 else if (sr->which == Z_SRW_scan_response)
4421                     handle_srw_scan_response(c, sr->u.scan_response);
4422                 else
4423                     ret = -1;
4424             }
4425             else if (!ret && (soap_package->which == Z_SOAP_fault
4426                               || soap_package->which == Z_SOAP_error))
4427             {
4428                 set_HTTP_error(c, hres->code,
4429                                soap_package->u.fault->fault_code,
4430                                soap_package->u.fault->fault_string);
4431             }
4432             else
4433                 ret = -1;
4434         }
4435         if (ret == 0)
4436         {
4437             if (c->no_redirects) /* end of redirect. change hosts again */
4438                 do_close(c);
4439         }
4440         c->no_redirects = 0;
4441     }
4442     if (ret)
4443     {
4444         if (hres->code != 200)
4445             set_HTTP_error(c, hres->code, 0, 0);
4446         else
4447             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
4448         do_close(c);
4449     }
4450     if (cret == zoom_complete)
4451     {
4452         yaz_log(YLOG_LOG, "removing tasks in handle_http");
4453         ZOOM_connection_remove_task(c);
4454     }
4455     {
4456         int must_close = 0;
4457         if (!strcmp(hres->version, "1.0"))
4458         {
4459             /* HTTP 1.0: only if Keep-Alive we stay alive.. */
4460             if (!connection_head || strcmp(connection_head, "Keep-Alive"))
4461                 must_close = 1;
4462         }
4463         else
4464         {
4465             /* HTTP 1.1: only if no close we stay alive.. */
4466             if (connection_head && !strcmp(connection_head, "close"))
4467                 must_close = 1;
4468         }
4469         if (must_close)
4470         {
4471             do_close(c);
4472             if (c->tasks)
4473             {
4474                 c->tasks->running = 0;
4475                 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
4476                 c->reconnect_ok = 0;
4477             }
4478         }
4479     }
4480 }
4481 #endif
4482
4483 static int do_read(ZOOM_connection c)
4484 {
4485     int r, more;
4486     ZOOM_Event event;
4487
4488     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
4489     ZOOM_connection_put_event(c, event);
4490
4491     r = cs_get(c->cs, &c->buf_in, &c->len_in);
4492     more = cs_more(c->cs);
4493     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4494     if (r == 1)
4495         return 0;
4496     if (r <= 0)
4497     {
4498         if (!ZOOM_test_reconnect(c))
4499         {
4500             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4501             do_close(c);
4502         }
4503     }
4504     else
4505     {
4506         Z_GDU *gdu;
4507         ZOOM_Event event;
4508
4509         odr_reset(c->odr_in);
4510         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4511         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4512         ZOOM_connection_put_event(c, event);
4513
4514         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4515         {
4516             int x;
4517             int err = odr_geterrorx(c->odr_in, &x);
4518             char msg[100];
4519             const char *element = odr_getelement(c->odr_in);
4520             yaz_snprintf(msg, sizeof(msg),
4521                     "ODR code %d:%d element=%s offset=%d",
4522                     err, x, element ? element : "<unknown>",
4523                     odr_offset(c->odr_in));
4524             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4525             if (log_api)
4526             {
4527                 FILE *ber_file = yaz_log_file();
4528                 if (ber_file)
4529                     odr_dumpBER(ber_file, c->buf_in, r);
4530             }
4531             do_close(c);
4532         }
4533         else
4534         {
4535             if (c->odr_print)
4536                 z_GDU(c->odr_print, &gdu, 0, 0);
4537             if (gdu->which == Z_GDU_Z3950)
4538                 recv_apdu(c, gdu->u.z3950);
4539             else if (gdu->which == Z_GDU_HTTP_Response)
4540             {
4541 #if YAZ_HAVE_XML2
4542                 handle_http(c, gdu->u.HTTP_Response);
4543 #else
4544                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4545                 do_close(c);
4546 #endif
4547             }
4548         }
4549         c->reconnect_ok = 0;
4550     }
4551     return 1;
4552 }
4553
4554 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4555 {
4556     int r;
4557     ZOOM_Event event;
4558
4559     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4560     ZOOM_connection_put_event(c, event);
4561
4562     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4563     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4564     {
4565         yaz_log(log_details, "%p do_write_ex write failed", c);
4566         if (ZOOM_test_reconnect(c))
4567         {
4568             return zoom_pending;
4569         }
4570         if (c->state == STATE_CONNECTING)
4571             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4572         else
4573             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4574         do_close(c);
4575         return zoom_complete;
4576     }
4577     else if (r == 1)
4578     {
4579         int mask = ZOOM_SELECT_EXCEPT;
4580         if (c->cs->io_pending & CS_WANT_WRITE)
4581             mask += ZOOM_SELECT_WRITE;
4582         if (c->cs->io_pending & CS_WANT_READ)
4583             mask += ZOOM_SELECT_READ;
4584         ZOOM_connection_set_mask(c, mask);
4585         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4586                 c, c->mask);
4587     }
4588     else
4589     {
4590         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4591         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4592                 c, c->mask);
4593     }
4594     return zoom_pending;
4595 }
4596
4597 static zoom_ret do_write(ZOOM_connection c)
4598 {
4599     return do_write_ex(c, c->buf_out, c->len_out);
4600 }
4601
4602
4603 ZOOM_API(const char *)
4604     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4605 {
4606     return ZOOM_options_get(c->options, key);
4607 }
4608
4609 ZOOM_API(const char *)
4610     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4611 {
4612     return ZOOM_options_getl(c->options, key, lenp);
4613 }
4614
4615 ZOOM_API(void)
4616     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4617                                const char *val)
4618 {
4619     ZOOM_options_set(c->options, key, val);
4620 }
4621
4622 ZOOM_API(void)
4623     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4624                                 const char *val, int len)
4625 {
4626     ZOOM_options_setl(c->options, key, val, len);
4627 }
4628
4629 ZOOM_API(const char *)
4630     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4631 {
4632     return ZOOM_options_get(r->options, key);
4633 }
4634
4635 ZOOM_API(void)
4636     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4637                               const char *val)
4638 {
4639     ZOOM_options_set(r->options, key, val);
4640 }
4641
4642
4643 ZOOM_API(int)
4644     ZOOM_connection_errcode(ZOOM_connection c)
4645 {
4646     return ZOOM_connection_error(c, 0, 0);
4647 }
4648
4649 ZOOM_API(const char *)
4650     ZOOM_connection_errmsg(ZOOM_connection c)
4651 {
4652     const char *msg;
4653     ZOOM_connection_error(c, &msg, 0);
4654     return msg;
4655 }
4656
4657 ZOOM_API(const char *)
4658     ZOOM_connection_addinfo(ZOOM_connection c)
4659 {
4660     const char *addinfo;
4661     ZOOM_connection_error(c, 0, &addinfo);
4662     return addinfo;
4663 }
4664
4665 ZOOM_API(const char *)
4666     ZOOM_connection_diagset(ZOOM_connection c)
4667 {
4668     const char *diagset;
4669     ZOOM_connection_error_x(c, 0, 0, &diagset);
4670     return diagset;
4671 }
4672
4673 ZOOM_API(const char *)
4674     ZOOM_diag_str(int error)
4675 {
4676     switch (error)
4677     {
4678     case ZOOM_ERROR_NONE:
4679         return "No error";
4680     case ZOOM_ERROR_CONNECT:
4681         return "Connect failed";
4682     case ZOOM_ERROR_MEMORY:
4683         return "Out of memory";
4684     case ZOOM_ERROR_ENCODE:
4685         return "Encoding failed";
4686     case ZOOM_ERROR_DECODE:
4687         return "Decoding failed";
4688     case ZOOM_ERROR_CONNECTION_LOST:
4689         return "Connection lost";
4690     case ZOOM_ERROR_INIT:
4691         return "Init rejected";
4692     case ZOOM_ERROR_INTERNAL:
4693         return "Internal failure";
4694     case ZOOM_ERROR_TIMEOUT:
4695         return "Timeout";
4696     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4697         return "Unsupported protocol";
4698     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4699         return "Unsupported query type";
4700     case ZOOM_ERROR_INVALID_QUERY:
4701         return "Invalid query";
4702     case ZOOM_ERROR_CQL_PARSE:
4703         return "CQL parsing error";
4704     case ZOOM_ERROR_CQL_TRANSFORM:
4705         return "CQL transformation error";
4706     case ZOOM_ERROR_CCL_CONFIG:
4707         return "CCL configuration error";
4708     case ZOOM_ERROR_CCL_PARSE:
4709         return "CCL parsing error";
4710     default:
4711         return diagbib1_str(error);
4712     }
4713 }
4714
4715 ZOOM_API(int)
4716     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4717                             const char **addinfo, const char **diagset)
4718 {
4719     int error = c->error;
4720     if (cp)
4721     {
4722         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4723             *cp = ZOOM_diag_str(error);
4724         else if (!strcmp(c->diagset, "HTTP"))
4725             *cp = z_HTTP_errmsg(c->error);
4726         else if (!strcmp(c->diagset, "Bib-1"))
4727             *cp = ZOOM_diag_str(error);
4728         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4729             *cp = yaz_diag_srw_str(c->error);
4730         else
4731             *cp = "Unknown error and diagnostic set";
4732     }
4733     if (addinfo)
4734         *addinfo = c->addinfo ? c->addinfo : "";
4735     if (diagset)
4736         *diagset = c->diagset ? c->diagset : "";
4737     return c->error;
4738 }
4739
4740 ZOOM_API(int)
4741     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4742                           const char **addinfo)
4743 {
4744     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4745 }
4746
4747 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4748 {
4749     ZOOM_Event event = 0;
4750     int r = cs_look(c->cs);
4751     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4752             c, mask, r);
4753
4754     if (r == CS_NONE)
4755     {
4756         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4757         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4758         do_close(c);
4759         ZOOM_connection_put_event(c, event);
4760     }
4761     else if (r == CS_CONNECT)
4762     {
4763         int ret = ret = cs_rcvconnect(c->cs);
4764         yaz_log(log_details, "%p ZOOM_connection_do_io "
4765                 "cs_rcvconnect returned %d", c, ret);
4766         if (ret == 1)
4767         {
4768             int mask = ZOOM_SELECT_EXCEPT;
4769             if (c->cs->io_pending & CS_WANT_WRITE)
4770                 mask += ZOOM_SELECT_WRITE;
4771             if (c->cs->io_pending & CS_WANT_READ)
4772                 mask += ZOOM_SELECT_READ;
4773             ZOOM_connection_set_mask(c, mask);
4774             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4775             ZOOM_connection_put_event(c, event);
4776         }
4777         else if (ret == 0)
4778         {
4779             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4780             ZOOM_connection_put_event(c, event);
4781             get_cert(c);
4782             if (c->proto == PROTO_Z3950)
4783                 ZOOM_connection_send_init(c);
4784             else
4785             {
4786                 /* no init request for SRW .. */
4787                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4788                 ZOOM_connection_remove_task(c);
4789                 ZOOM_connection_set_mask(c, 0);
4790                 ZOOM_connection_exec_task(c);
4791             }
4792             c->state = STATE_ESTABLISHED;
4793         }
4794         else
4795         {
4796             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4797             do_close(c);
4798         }
4799     }
4800     else
4801     {
4802         if (mask & ZOOM_SELECT_EXCEPT)
4803         {
4804             if (!ZOOM_test_reconnect(c))
4805             {
4806                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4807                 do_close(c);
4808             }
4809             return;
4810         }
4811         if (mask & ZOOM_SELECT_READ)
4812             do_read(c);
4813         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4814             do_write(c);
4815     }
4816 }
4817
4818 ZOOM_API(int)
4819     ZOOM_connection_last_event(ZOOM_connection cs)
4820 {
4821     if (!cs)
4822         return ZOOM_EVENT_NONE;
4823     return cs->last_event;
4824 }
4825
4826
4827 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4828 {
4829     WRBUF wrbuf = (WRBUF) client_data;
4830     wrbuf_puts(wrbuf, buf);
4831 }
4832
4833 /*
4834  * Returns an xmalloc()d string containing RPN that corresponds to the
4835  * CQL passed in.  On error, sets the Connection object's error state
4836  * and returns a null pointer.
4837  * ### We could cache CQL parser and/or transformer in Connection.
4838  */
4839 static char *cql2pqf(ZOOM_connection c, const char *cql)
4840 {
4841     CQL_parser parser;
4842     int error;
4843     const char *cqlfile;
4844     cql_transform_t trans;
4845     char *result = 0;
4846
4847     parser = cql_parser_create();
4848     if ((error = cql_parser_string(parser, cql)) != 0) {
4849         cql_parser_destroy(parser);
4850         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4851         return 0;
4852     }
4853
4854     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4855     if (cqlfile == 0)
4856     {
4857         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4858     }
4859     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4860     {
4861         char buf[512];
4862         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4863                 cqlfile, strerror(errno));
4864         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4865     }
4866     else
4867     {
4868         WRBUF wrbuf_result = wrbuf_alloc();
4869         error = cql_transform(trans, cql_parser_result(parser),
4870                               cql2pqf_wrbuf_puts, wrbuf_result);
4871         if (error != 0) {
4872             char buf[512];
4873             const char *addinfo;
4874             error = cql_transform_error(trans, &addinfo);
4875             sprintf(buf, "%.200s (addinfo=%.200s)",
4876                     cql_strerror(error), addinfo);
4877             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4878         }
4879         else
4880         {
4881             result = xstrdup(wrbuf_cstr(wrbuf_result));
4882         }
4883         cql_transform_close(trans);
4884         wrbuf_destroy(wrbuf_result);
4885     }
4886     cql_parser_destroy(parser);
4887     return result;
4888 }
4889
4890 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4891 {
4892     if (c->mask)
4893     {
4894         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4895         /* timeout and this connection was waiting */
4896         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4897         do_close(c);
4898         ZOOM_connection_put_event(c, event);
4899     }
4900     return 0;
4901 }
4902
4903 ZOOM_API(int)
4904     ZOOM_connection_process(ZOOM_connection c)
4905 {
4906     ZOOM_Event event;
4907     if (!c)
4908         return 0;
4909
4910     event = ZOOM_connection_get_event(c);
4911     if (event)
4912     {
4913         ZOOM_Event_destroy(event);
4914         return 1;
4915     }
4916     ZOOM_connection_exec_task(c);
4917     event = ZOOM_connection_get_event(c);
4918     if (event)
4919     {
4920         ZOOM_Event_destroy(event);
4921         return 1;
4922     }
4923     return 0;
4924 }
4925
4926 ZOOM_API(int)
4927     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4928 {
4929     int i;
4930
4931     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4932
4933     for (i = 0; i<no; i++)
4934     {
4935         ZOOM_connection c = cs[i];
4936
4937         if (c && ZOOM_connection_process(c))
4938             return i+1;
4939     }
4940     return 0;
4941 }
4942
4943 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4944 {
4945     if (c->mask && mask)
4946         ZOOM_connection_do_io(c, mask);
4947     return 0;
4948 }
4949
4950 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
4951 {
4952     if (c->cs)
4953         return cs_fileno(c->cs);
4954     return -1;
4955 }
4956
4957 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
4958 {
4959     c->mask = mask;
4960     if (!c->cs)
4961         return -1;
4962     return 0;
4963 }
4964
4965 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
4966 {
4967     if (c->cs)
4968         return c->mask;
4969     return 0;
4970 }
4971
4972 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
4973 {
4974     return ZOOM_options_get_int(c->options, "timeout", 30);
4975 }
4976
4977 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
4978 {
4979     do_close(c);
4980 }
4981
4982 /*
4983  * Local variables:
4984  * c-basic-offset: 4
4985  * c-file-style: "Stroustrup"
4986  * indent-tabs-mode: nil
4987  * End:
4988  * vim: shiftwidth=4 tabstop=8 expandtab
4989  */
4990