src/zoom-c.c

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