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         resultset->step : *count);
1544     sr->u.request->recordSchema = resultset->schema;
1545
1546     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1547     if (option_val)
1548         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1549
1550     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1551     yaz_encode_sru_extra(sr, c->odr_out, option_val);
1552     return send_srw(c, sr);
1553 }
1554 #else
1555 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1556 {
1557     return zoom_complete;
1558 }
1559 #endif
1560
1561 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1562 {
1563     ZOOM_resultset r;
1564     int lslb, ssub, mspn;
1565     const char *syntax;
1566     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1567     Z_SearchRequest *search_req = apdu->u.searchRequest;
1568     const char *elementSetName;
1569     const char *smallSetElementSetName;
1570     const char *mediumSetElementSetName;
1571
1572     assert(c->tasks);
1573     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1574
1575     r = c->tasks->u.search.resultset;
1576
1577     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1578
1579     elementSetName =
1580         ZOOM_options_get(r->options, "elementSetName");
1581     smallSetElementSetName  =
1582         ZOOM_options_get(r->options, "smallSetElementSetName");
1583     mediumSetElementSetName =
1584         ZOOM_options_get(r->options, "mediumSetElementSetName");
1585
1586     if (!smallSetElementSetName)
1587         smallSetElementSetName = elementSetName;
1588
1589     if (!mediumSetElementSetName)
1590         mediumSetElementSetName = elementSetName;
1591
1592     assert(r);
1593     assert(r->query);
1594
1595     /* prepare query for the search request */
1596     search_req->query = r->query->z_query;
1597     if (!search_req->query)
1598     {
1599         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1600         return zoom_complete;
1601     }
1602     if (r->query->z_query->which == Z_Query_type_1 ||
1603         r->query->z_query->which == Z_Query_type_101)
1604     {
1605         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1606         if (cp)
1607         {
1608             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1609             if (cd)
1610             {
1611                 search_req->query = yaz_copy_Z_Query(search_req->query,
1612                                                      c->odr_out);
1613
1614                 yaz_query_charset_convert_rpnquery(search_req->query->u.type_1,
1615                                                    c->odr_out, cd);
1616                 yaz_iconv_close(cd);
1617             }
1618         }
1619     }
1620     search_req->databaseNames = r->databaseNames;
1621     search_req->num_databaseNames = r->num_databaseNames;
1622
1623     /* get syntax (no need to provide unless piggyback is in effect) */
1624     syntax = c->tasks->u.search.syntax;
1625
1626     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1627     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1628     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1629     if (lslb != -1 && ssub != -1 && mspn != -1)
1630     {
1631         /* So're a Z39.50 expert? Let's hope you don't do sort */
1632         *search_req->largeSetLowerBound = lslb;
1633         *search_req->smallSetUpperBound = ssub;
1634         *search_req->mediumSetPresentNumber = mspn;
1635     }
1636     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1637              && r->piggyback && !r->r_sort_spec && !r->schema)
1638     {
1639         /* Regular piggyback - do it unless we're going to do sort */
1640         *search_req->largeSetLowerBound = 2000000000;
1641         *search_req->smallSetUpperBound = 1;
1642         *search_req->mediumSetPresentNumber =
1643             r->step>0 ? r->step : c->tasks->u.search.count;
1644     }
1645     else
1646     {
1647         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1648         smallSetElementSetName = 0;
1649         mediumSetElementSetName = 0;
1650         syntax = 0;
1651     }
1652     if (smallSetElementSetName && *smallSetElementSetName)
1653     {
1654         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1655             odr_malloc(c->odr_out, sizeof(*esn));
1656
1657         esn->which = Z_ElementSetNames_generic;
1658         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1659         search_req->smallSetElementSetNames = esn;
1660     }
1661     if (mediumSetElementSetName && *mediumSetElementSetName)
1662     {
1663         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1664             odr_malloc(c->odr_out, sizeof(*esn));
1665
1666         esn->which = Z_ElementSetNames_generic;
1667         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1668         search_req->mediumSetElementSetNames = esn;
1669     }
1670     if (syntax)
1671         search_req->preferredRecordSyntax =
1672             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1673
1674     if (!r->setname)
1675     {
1676         if (c->support_named_resultsets)
1677         {
1678             char setname[14];
1679             int ord;
1680             /* find the lowest unused ordinal so that we re-use
1681                result sets on the server. */
1682             for (ord = 1; ; ord++)
1683             {
1684                 ZOOM_resultset rp;
1685                 sprintf(setname, "%d", ord);
1686                 for (rp = c->resultsets; rp; rp = rp->next)
1687                     if (rp->setname && !strcmp(rp->setname, setname))
1688                         break;
1689                 if (!rp)
1690                     break;
1691             }
1692             r->setname = xstrdup(setname);
1693             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1694                     "set %s", c, r->setname);
1695         }
1696         else
1697         {
1698             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1699                     "default set", c);
1700             r->setname = xstrdup("default");
1701         }
1702         ZOOM_options_set(r->options, "setname", r->setname);
1703     }
1704     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1705     return send_APDU(c, apdu);
1706 }
1707
1708 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1709 {
1710     char oid_name_buf[OID_STR_MAX];
1711     const char *oid_name;
1712     char *addinfo = 0;
1713
1714     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1715     switch (r->which)
1716     {
1717     case Z_DefaultDiagFormat_v2Addinfo:
1718         addinfo = r->u.v2Addinfo;
1719         break;
1720     case Z_DefaultDiagFormat_v3Addinfo:
1721         addinfo = r->u.v3Addinfo;
1722         break;
1723     }
1724     xfree(c->addinfo);
1725     c->addinfo = 0;
1726     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1727 }
1728
1729 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1730 {
1731     if (p->which != Z_DiagRec_defaultFormat)
1732         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1733     else
1734         response_default_diag(c, p->u.defaultFormat);
1735 }
1736
1737 ZOOM_API(ZOOM_record)
1738     ZOOM_record_clone(ZOOM_record srec)
1739 {
1740     char *buf;
1741     int size;
1742     ODR odr_enc;
1743     ZOOM_record nrec;
1744
1745     odr_enc = odr_createmem(ODR_ENCODE);
1746     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1747         return 0;
1748     buf = odr_getbuf(odr_enc, &size, 0);
1749
1750     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1751     nrec->odr = odr_createmem(ODR_DECODE);
1752     nrec->wrbuf_marc = 0;
1753     nrec->wrbuf_iconv = 0;
1754     nrec->wrbuf_opac = 0;
1755     odr_setbuf(nrec->odr, buf, size, 0);
1756     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1757
1758     nrec->schema = odr_strdup_null(nrec->odr, srec->schema);
1759     nrec->diag_uri = odr_strdup_null(nrec->odr, srec->diag_uri);
1760     nrec->diag_message = odr_strdup_null(nrec->odr, srec->diag_message);
1761     nrec->diag_details = odr_strdup_null(nrec->odr, srec->diag_details);
1762     nrec->diag_set = odr_strdup_null(nrec->odr, srec->diag_set);
1763     odr_destroy(odr_enc);
1764     return nrec;
1765 }
1766
1767 ZOOM_API(ZOOM_record)
1768     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1769 {
1770     const char *syntax =
1771         ZOOM_options_get(s->options, "preferredRecordSyntax");
1772     const char *elementSetName =
1773         ZOOM_options_get(s->options, "elementSetName");
1774
1775     return record_cache_lookup(s, pos, syntax, elementSetName);
1776 }
1777
1778 ZOOM_API(ZOOM_record)
1779     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1780 {
1781     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1782
1783     if (!rec)
1784     {
1785         /*
1786          * MIKE: I think force_sync should always be zero, but I don't
1787          * want to make this change until I get the go-ahead from
1788          * Adam, in case something depends on the old synchronous
1789          * behaviour.
1790          */
1791         int force_sync = 1;
1792         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1793         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1794         rec = ZOOM_resultset_record_immediate(r, pos);
1795     }
1796     return rec;
1797 }
1798
1799 ZOOM_API(void)
1800     ZOOM_record_destroy(ZOOM_record rec)
1801 {
1802     if (!rec)
1803         return;
1804     if (rec->wrbuf_marc)
1805         wrbuf_destroy(rec->wrbuf_marc);
1806     if (rec->wrbuf_iconv)
1807         wrbuf_destroy(rec->wrbuf_iconv);
1808     if (rec->wrbuf_opac)
1809         wrbuf_destroy(rec->wrbuf_opac);
1810     odr_destroy(rec->odr);
1811     xfree(rec);
1812 }
1813
1814 static const char *marc_iconv_return(ZOOM_record rec, int marc_type,
1815                                      int *len,
1816                                      const char *buf, int sz,
1817                                      const char *record_charset)
1818 {
1819     char to[40];
1820     char from[40];
1821     yaz_iconv_t cd = 0;
1822     yaz_marc_t mt = yaz_marc_create();
1823
1824     *from = '\0';
1825     strcpy(to, "UTF-8");
1826     if (record_charset && *record_charset)
1827     {
1828         /* Use "from,to" or just "from" */
1829         const char *cp = strchr(record_charset, ',');
1830         int clen = strlen(record_charset);
1831         if (cp && cp[1])
1832         {
1833             strncpy( to, cp+1, sizeof(to)-1);
1834             to[sizeof(to)-1] = '\0';
1835             clen = cp - record_charset;
1836         }
1837         if (clen > sizeof(from)-1)
1838             clen = sizeof(from)-1;
1839
1840         if (clen)
1841             strncpy(from, record_charset, clen);
1842         from[clen] = '\0';
1843     }
1844
1845     if (*from && *to)
1846     {
1847         cd = yaz_iconv_open(to, from);
1848         yaz_marc_iconv(mt, cd);
1849     }
1850
1851     yaz_marc_xml(mt, marc_type);
1852     if (!rec->wrbuf_marc)
1853         rec->wrbuf_marc = wrbuf_alloc();
1854     wrbuf_rewind(rec->wrbuf_marc);
1855     if (yaz_marc_decode_wrbuf(mt, buf, sz, rec->wrbuf_marc) > 0)
1856     {
1857         yaz_marc_destroy(mt);
1858         if (cd)
1859             yaz_iconv_close(cd);
1860         if (len)
1861             *len = wrbuf_len(rec->wrbuf_marc);
1862         return wrbuf_cstr(rec->wrbuf_marc);
1863     }
1864     yaz_marc_destroy(mt);
1865     if (cd)
1866         yaz_iconv_close(cd);
1867     return 0;
1868 }
1869
1870 static const char *record_iconv_return(ZOOM_record rec, int *len,
1871                                        const char *buf, int sz,
1872                                        const char *record_charset)
1873 {
1874     char to[40];
1875     char from[40];
1876     yaz_iconv_t cd = 0;
1877
1878     *from = '\0';
1879     strcpy(to, "UTF-8");
1880
1881     if (record_charset && *record_charset)
1882     {
1883         /* Use "from,to" or just "from" */
1884         const char *cp = strchr(record_charset, ',');
1885         int clen = strlen(record_charset);
1886         if (cp && cp[1])
1887         {
1888             strncpy( to, cp+1, sizeof(to)-1);
1889             to[sizeof(to)-1] = '\0';
1890             clen = cp - record_charset;
1891         }
1892         if (clen > sizeof(from)-1)
1893             clen = sizeof(from)-1;
1894
1895         if (clen)
1896             strncpy(from, record_charset, clen);
1897         from[clen] = '\0';
1898     }
1899
1900     if (*from && *to && (cd = yaz_iconv_open(to, from)))
1901     {
1902         if (!rec->wrbuf_iconv)
1903             rec->wrbuf_iconv = wrbuf_alloc();
1904
1905         wrbuf_rewind(rec->wrbuf_iconv);
1906
1907         wrbuf_iconv_write(rec->wrbuf_iconv, cd, buf, sz);
1908         wrbuf_iconv_reset(rec->wrbuf_iconv, cd);
1909
1910         buf = wrbuf_cstr(rec->wrbuf_iconv);
1911         sz = wrbuf_len(rec->wrbuf_iconv);
1912         yaz_iconv_close(cd);
1913     }
1914     if (len)
1915         *len = sz;
1916     return buf;
1917 }
1918
1919
1920 ZOOM_API(int)
1921     ZOOM_record_error(ZOOM_record rec, const char **cp,
1922                       const char **addinfo, const char **diagset)
1923 {
1924     Z_NamePlusRecord *npr;
1925
1926     if (!rec)
1927         return 0;
1928
1929     npr = rec->npr;
1930     if (rec->diag_uri)
1931     {
1932         if (cp)
1933             *cp = rec->diag_message;
1934         if (addinfo)
1935             *addinfo = rec->diag_details;
1936         if (diagset)
1937             *diagset = rec->diag_set;
1938         return uri_to_code(rec->diag_uri);
1939     }
1940     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
1941     {
1942         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
1943         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
1944         const char *add = 0;
1945
1946         if (diag_rec->which == Z_DiagRec_defaultFormat)
1947         {
1948             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
1949             oid_class oclass;
1950
1951             error = *ddf->condition;
1952             switch (ddf->which)
1953             {
1954             case Z_DefaultDiagFormat_v2Addinfo:
1955                 add = ddf->u.v2Addinfo;
1956                 break;
1957             case Z_DefaultDiagFormat_v3Addinfo:
1958                 add = ddf->u.v3Addinfo;
1959                 break;
1960             }
1961             if (diagset)
1962                 *diagset =
1963                     yaz_oid_to_string(yaz_oid_std(),
1964                                       ddf->diagnosticSetId, &oclass);
1965         }
1966         else
1967         {
1968             if (diagset)
1969                 *diagset = "Bib-1";
1970         }
1971         if (addinfo)
1972             *addinfo = add ? add : "";
1973         if (cp)
1974             *cp = diagbib1_str(error);
1975         return error;
1976     }
1977     return 0;
1978 }
1979
1980 ZOOM_API(const char *)
1981     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
1982 {
1983     char type[40];
1984     char charset[40];
1985     char xpath[512];
1986     const char *cp;
1987     int i;
1988     Z_NamePlusRecord *npr;
1989
1990     if (len)
1991         *len = 0; /* default return */
1992
1993     if (!rec)
1994         return 0;
1995     npr = rec->npr;
1996     if (!npr)
1997         return 0;
1998
1999     cp = type_spec;
2000     for (i = 0; cp[i] && i < sizeof(type)-1; i++)
2001     {
2002         if (cp[i] == ';' || cp[i] == ' ')
2003             break;
2004         type[i] = cp[i];
2005     }
2006     type[i] = '\0';
2007     charset[0] = '\0';
2008     while (type_spec[i] == ';')
2009     {
2010         i++;
2011         while (type_spec[i] == ' ')
2012             i++;
2013         if (!strncmp(type_spec+i, "charset=", 8))
2014         {
2015             int j = 0;
2016             i = i + 8; /* skip charset= */
2017             for (j = 0; type_spec[i]  && j < sizeof(charset)-1; i++, j++)
2018             {
2019                 if (type_spec[i] == ';' || type_spec[i] == ' ')
2020                     break;
2021                 charset[j] = cp[i];
2022             }
2023             charset[j] = '\0';
2024         }
2025         else if (!strncmp(type_spec+i, "xpath=", 6))
2026         {
2027             int j = 0;
2028             i = i + 6;
2029             for (j = 0; type_spec[i] && j < sizeof(xpath)-1; i++, j++)
2030                 xpath[j] = cp[i];
2031             xpath[j] = '\0';
2032         }
2033         while (type_spec[i] == ' ')
2034             i++;
2035     }
2036     if (!strcmp(type, "database"))
2037     {
2038         if (len)
2039             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2040         return npr->databaseName;
2041     }
2042     else if (!strcmp(type, "schema"))
2043     {
2044         if (len)
2045             *len = rec->schema ? strlen(rec->schema) : 0;
2046         return rec->schema;
2047     }
2048     else if (!strcmp(type, "syntax"))
2049     {
2050         const char *desc = 0;
2051         if (npr->which == Z_NamePlusRecord_databaseRecord)
2052         {
2053             Z_External *r = (Z_External *) npr->u.databaseRecord;
2054             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2055         }
2056         if (!desc)
2057             desc = "none";
2058         if (len)
2059             *len = strlen(desc);
2060         return desc;
2061     }
2062     if (npr->which != Z_NamePlusRecord_databaseRecord)
2063         return 0;
2064
2065     /* from now on - we have a database record .. */
2066     if (!strcmp(type, "render"))
2067     {
2068         Z_External *r = (Z_External *) npr->u.databaseRecord;
2069         const Odr_oid *oid = r->direct_reference;
2070
2071         /* render bibliographic record .. */
2072         if (r->which == Z_External_OPAC)
2073         {
2074             r = r->u.opac->bibliographicRecord;
2075             if (!r)
2076                 return 0;
2077             oid = r->direct_reference;
2078         }
2079         if (r->which == Z_External_sutrs)
2080             return record_iconv_return(rec, len,
2081                                        (char*) r->u.sutrs->buf,
2082                                        r->u.sutrs->len,
2083                                        charset);
2084         else if (r->which == Z_External_octet)
2085         {
2086             if (yaz_oid_is_iso2709(oid))
2087             {
2088                 const char *ret_buf = marc_iconv_return(
2089                     rec, YAZ_MARC_LINE, len,
2090                     (const char *) r->u.octet_aligned->buf,
2091                     r->u.octet_aligned->len,
2092                     charset);
2093                 if (ret_buf)
2094                     return ret_buf;
2095             }
2096             return record_iconv_return(rec, len,
2097                                        (const char *) r->u.octet_aligned->buf,
2098                                        r->u.octet_aligned->len,
2099                                        charset);
2100         }
2101         else if (r->which == Z_External_grs1)
2102         {
2103             if (!rec->wrbuf_marc)
2104                 rec->wrbuf_marc = wrbuf_alloc();
2105             wrbuf_rewind(rec->wrbuf_marc);
2106             yaz_display_grs1(rec->wrbuf_marc, r->u.grs1, 0);
2107             return record_iconv_return(rec, len,
2108                                        wrbuf_buf(rec->wrbuf_marc),
2109                                        wrbuf_len(rec->wrbuf_marc),
2110                                        charset);
2111         }
2112         return 0;
2113     }
2114     else if (!strcmp(type, "xml"))
2115     {
2116         Z_External *r = (Z_External *) npr->u.databaseRecord;
2117         const Odr_oid *oid = r->direct_reference;
2118
2119         /* render bibliographic record .. */
2120         if (r->which == Z_External_OPAC)
2121         {
2122             r = r->u.opac->bibliographicRecord;
2123             if (!r)
2124                 return 0;
2125             oid = r->direct_reference;
2126         }
2127
2128         if (r->which == Z_External_sutrs)
2129             return record_iconv_return(rec, len,
2130                                        (const char *) r->u.sutrs->buf,
2131                                        r->u.sutrs->len,
2132                                        charset);
2133         else if (r->which == Z_External_octet)
2134         {
2135             int marc_decode_type = YAZ_MARC_MARCXML;
2136             if (yaz_oid_is_iso2709(oid))
2137             {
2138                 const char *ret_buf = marc_iconv_return(
2139                     rec, marc_decode_type, len,
2140                     (const char *) r->u.octet_aligned->buf,
2141                     r->u.octet_aligned->len,
2142                     charset);
2143                 if (ret_buf)
2144                     return ret_buf;
2145             }
2146             return record_iconv_return(rec, len,
2147                                        (const char *) r->u.octet_aligned->buf,
2148                                        r->u.octet_aligned->len,
2149                                        charset);
2150         }
2151         else if (r->which == Z_External_grs1)
2152         {
2153             if (len) *len = 5;
2154             return "GRS-1";
2155         }
2156         return 0;
2157     }
2158     else if (!strcmp(type, "raw"))
2159     {
2160         Z_External *r = (Z_External *) npr->u.databaseRecord;
2161
2162         if (r->which == Z_External_sutrs)
2163         {
2164             if (len) *len = r->u.sutrs->len;
2165             return (const char *) r->u.sutrs->buf;
2166         }
2167         else if (r->which == Z_External_octet)
2168         {
2169             if (len) *len = r->u.octet_aligned->len;
2170             return (const char *) r->u.octet_aligned->buf;
2171         }
2172         else /* grs-1, explain, OPAC, ... */
2173         {
2174             if (len) *len = -1;
2175             return (const char *) npr->u.databaseRecord;
2176         }
2177         return 0;
2178     }
2179     else if (!strcmp (type, "ext"))
2180     {
2181         if (len) *len = -1;
2182         return (const char *) npr->u.databaseRecord;
2183     }
2184     else if (!strcmp (type, "opac"))
2185
2186     {
2187         Z_External *r = (Z_External *) npr->u.databaseRecord;
2188         if (r->which == Z_External_OPAC)
2189         {
2190             if (!rec->wrbuf_opac)
2191                 rec->wrbuf_opac = wrbuf_alloc();
2192             wrbuf_rewind(rec->wrbuf_opac);
2193             yaz_display_OPAC(rec->wrbuf_opac, r->u.opac, 0);
2194             return record_iconv_return(rec, len,
2195                                        wrbuf_buf(rec->wrbuf_opac),
2196                                        wrbuf_len(rec->wrbuf_opac),
2197                                        charset);
2198         }
2199     }
2200     return 0;
2201 }
2202
2203 static int strcmp_null(const char *v1, const char *v2)
2204 {
2205     if (!v1 && !v2)
2206         return 0;
2207     if (!v1 || !v2)
2208         return -1;
2209     return strcmp(v1, v2);
2210 }
2211
2212 static size_t record_hash(int pos)
2213 {
2214     if (pos < 0)
2215         pos = 0;
2216     return pos % RECORD_HASH_SIZE;
2217 }
2218
2219 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2220                              int pos,
2221                              const char *syntax, const char *elementSetName,
2222                              const char *schema,
2223                              Z_SRW_diagnostic *diag)
2224 {
2225     ZOOM_record_cache rc = 0;
2226
2227     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2228     ZOOM_connection_put_event(r->connection, event);
2229
2230     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2231     {
2232         if (pos == rc->pos
2233             && strcmp_null(r->schema, rc->schema) == 0
2234             && strcmp_null(elementSetName,rc->elementSetName) == 0
2235             && strcmp_null(syntax, rc->syntax) == 0)
2236             break;
2237     }
2238     if (!rc)
2239     {
2240         rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2241         rc->rec.odr = 0;
2242         rc->rec.wrbuf_marc = 0;
2243         rc->rec.wrbuf_iconv = 0;
2244         rc->rec.wrbuf_opac = 0;
2245         rc->elementSetName = odr_strdup_null(r->odr, elementSetName);
2246
2247         rc->syntax = odr_strdup_null(r->odr, syntax);
2248
2249         rc->schema = odr_strdup_null(r->odr, r->schema);
2250
2251         rc->pos = pos;
2252         rc->next = r->record_hash[record_hash(pos)];
2253         r->record_hash[record_hash(pos)] = rc;
2254     }
2255     rc->rec.npr = npr;
2256     rc->rec.schema = odr_strdup_null(r->odr, schema);
2257     rc->rec.diag_set = 0;
2258     rc->rec.diag_uri = 0;
2259     rc->rec.diag_message = 0;
2260     rc->rec.diag_details = 0;
2261     if (diag)
2262     {
2263         if (diag->uri)
2264         {
2265             char *cp;
2266             rc->rec.diag_set = odr_strdup(r->odr, diag->uri);
2267             if ((cp = strrchr(rc->rec.diag_set, '/')))
2268                 *cp = '\0';
2269             rc->rec.diag_uri = odr_strdup(r->odr, diag->uri);
2270         }
2271         rc->rec.diag_message = odr_strdup_null(r->odr, diag->message);
2272         rc->rec.diag_details = odr_strdup_null(r->odr, diag->details);
2273     }
2274 }
2275
2276 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2277                                        const char *syntax,
2278                                        const char *elementSetName)
2279 {
2280     ZOOM_record_cache rc;
2281
2282     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2283     {
2284         if (pos == rc->pos)
2285         {
2286             if (strcmp_null(r->schema, rc->schema))
2287                 continue;
2288             if (strcmp_null(elementSetName,rc->elementSetName))
2289                 continue;
2290             if (strcmp_null(syntax, rc->syntax))
2291                 continue;
2292             return &rc->rec;
2293         }
2294     }
2295     return 0;
2296 }
2297
2298 static void handle_records(ZOOM_connection c, Z_Records *sr,
2299                            int present_phase)
2300 {
2301     ZOOM_resultset resultset;
2302     int *start, *count;
2303     const char *syntax = 0, *elementSetName = 0;
2304
2305     if (!c->tasks)
2306         return ;
2307     switch (c->tasks->which)
2308     {
2309     case ZOOM_TASK_SEARCH:
2310         resultset = c->tasks->u.search.resultset;
2311         start = &c->tasks->u.search.start;
2312         count = &c->tasks->u.search.count;
2313         syntax = c->tasks->u.search.syntax;
2314         elementSetName = c->tasks->u.search.elementSetName;
2315         break;
2316     case ZOOM_TASK_RETRIEVE:
2317         resultset = c->tasks->u.retrieve.resultset;
2318         start = &c->tasks->u.retrieve.start;
2319         count = &c->tasks->u.retrieve.count;
2320         syntax = c->tasks->u.retrieve.syntax;
2321         elementSetName = c->tasks->u.retrieve.elementSetName;
2322         break;
2323     default:
2324         return;
2325     }
2326     if (sr && sr->which == Z_Records_NSD)
2327         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2328     else if (sr && sr->which == Z_Records_multipleNSD)
2329     {
2330         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2331             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2332         else
2333             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2334     }
2335     else
2336     {
2337         if (*count + *start > resultset->size)
2338             *count = resultset->size - *start;
2339         if (*count < 0)
2340             *count = 0;
2341         if (sr && sr->which == Z_Records_DBOSD)
2342         {
2343             int i;
2344             NMEM nmem = odr_extract_mem(c->odr_in);
2345             Z_NamePlusRecordList *p =
2346                 sr->u.databaseOrSurDiagnostics;
2347             for (i = 0; i<p->num_records; i++)
2348             {
2349                 record_cache_add(resultset, p->records[i], i + *start,
2350                                  syntax, elementSetName,
2351                                  elementSetName, 0);
2352             }
2353             *count -= i;
2354             if (*count < 0)
2355                 *count = 0;
2356             *start += i;
2357             yaz_log(log_details,
2358                     "handle_records resultset=%p start=%d count=%d",
2359                     resultset, *start, *count);
2360
2361             /* transfer our response to search_nmem .. we need it later */
2362             nmem_transfer(odr_getmem(resultset->odr), nmem);
2363             nmem_destroy(nmem);
2364             if (present_phase && p->num_records == 0)
2365             {
2366                 /* present response and we didn't get any records! */
2367                 Z_NamePlusRecord *myrec =
2368                     zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2369                 record_cache_add(resultset, myrec, *start,
2370                                  syntax, elementSetName, 0, 0);
2371             }
2372         }
2373         else if (present_phase)
2374         {
2375             /* present response and we didn't get any records! */
2376             Z_NamePlusRecord *myrec =
2377                 zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2378             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2379                              0, 0);
2380         }
2381     }
2382 }
2383
2384 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2385 {
2386     handle_records(c, pr->records, 1);
2387 }
2388
2389 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2390                                        Z_Term *term)
2391 {
2392     switch (term->which)
2393     {
2394     case Z_Term_general:
2395         ZOOM_options_setl(opt, name,
2396                           (const char *)(term->u.general->buf),
2397                           term->u.general->len);
2398         break;
2399     case Z_Term_characterString:
2400         ZOOM_options_set(opt, name, term->u.characterString);
2401         break;
2402     case Z_Term_numeric:
2403         ZOOM_options_set_int(opt, name, *term->u.numeric);
2404         break;
2405     }
2406 }
2407
2408 static void handle_queryExpression(ZOOM_options opt, const char *name,
2409                                    Z_QueryExpression *exp)
2410 {
2411     char opt_name[80];
2412
2413     switch (exp->which)
2414     {
2415     case Z_QueryExpression_term:
2416         if (exp->u.term && exp->u.term->queryTerm)
2417         {
2418             sprintf(opt_name, "%s.term", name);
2419             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2420         }
2421         break;
2422     case Z_QueryExpression_query:
2423         break;
2424     }
2425 }
2426
2427 static void handle_searchResult(ZOOM_connection c, ZOOM_resultset resultset,
2428                                 Z_OtherInformation *o)
2429 {
2430     int i;
2431     for (i = 0; o && i < o->num_elements; i++)
2432     {
2433         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2434         {
2435             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2436
2437             if (ext->which == Z_External_searchResult1)
2438             {
2439                 int j;
2440                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2441
2442                 if (sr->num)
2443                     ZOOM_options_set_int(
2444                         resultset->options, "searchresult.size", sr->num);
2445
2446                 for (j = 0; j < sr->num; j++)
2447                 {
2448                     Z_SearchInfoReport_s *ent =
2449                         ext->u.searchResult1->elements[j];
2450                     char pref[80];
2451
2452                     sprintf(pref, "searchresult.%d", j);
2453
2454                     if (ent->subqueryId)
2455                     {
2456                         char opt_name[80];
2457                         sprintf(opt_name, "%s.id", pref);
2458                         ZOOM_options_set(resultset->options, opt_name,
2459                                          ent->subqueryId);
2460                     }
2461                     if (ent->subqueryExpression)
2462                     {
2463                         char opt_name[80];
2464                         sprintf(opt_name, "%s.subquery", pref);
2465                         handle_queryExpression(resultset->options, opt_name,
2466                                                ent->subqueryExpression);
2467                     }
2468                     if (ent->subqueryInterpretation)
2469                     {
2470                         char opt_name[80];
2471                         sprintf(opt_name, "%s.interpretation", pref);
2472                         handle_queryExpression(resultset->options, opt_name,
2473                                                ent->subqueryInterpretation);
2474                     }
2475                     if (ent->subqueryRecommendation)
2476                     {
2477                         char opt_name[80];
2478                         sprintf(opt_name, "%s.recommendation", pref);
2479                         handle_queryExpression(resultset->options, opt_name,
2480                                                ent->subqueryRecommendation);
2481                     }
2482                     if (ent->subqueryCount)
2483                     {
2484                         char opt_name[80];
2485                         sprintf(opt_name, "%s.count", pref);
2486                         ZOOM_options_set_int(resultset->options, opt_name,
2487                                              *ent->subqueryCount);
2488                     }
2489                 }
2490             }
2491         }
2492     }
2493 }
2494
2495 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2496 {
2497     ZOOM_resultset resultset;
2498     ZOOM_Event event;
2499
2500     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2501         return ;
2502
2503     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2504     ZOOM_connection_put_event(c, event);
2505
2506     resultset = c->tasks->u.search.resultset;
2507
2508     if (sr->resultSetStatus)
2509     {
2510         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2511                              *sr->resultSetStatus);
2512     }
2513     if (sr->presentStatus)
2514     {
2515         ZOOM_options_set_int(resultset->options, "presentStatus",
2516                              *sr->presentStatus);
2517     }
2518     handle_searchResult(c, resultset, sr->additionalSearchInfo);
2519
2520     resultset->size = *sr->resultCount;
2521     handle_records(c, sr->records, 0);
2522 }
2523
2524 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2525 {
2526     if (res->diagnostics && res->num_diagnostics > 0)
2527         response_diag(c, res->diagnostics[0]);
2528 }
2529
2530 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2531 {
2532     NMEM nmem = odr_extract_mem(c->odr_in);
2533     ZOOM_scanset scan;
2534
2535     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2536         return 0;
2537     scan = c->tasks->u.scan.scan;
2538
2539     if (res->entries && res->entries->nonsurrogateDiagnostics)
2540         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2541     scan->scan_response = res;
2542     scan->srw_scan_response = 0;
2543     nmem_transfer(odr_getmem(scan->odr), nmem);
2544     if (res->stepSize)
2545         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2546     if (res->positionOfTerm)
2547         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2548     if (res->scanStatus)
2549         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2550     if (res->numberOfEntriesReturned)
2551         ZOOM_options_set_int(scan->options, "number",
2552                              *res->numberOfEntriesReturned);
2553     nmem_destroy(nmem);
2554     return 1;
2555 }
2556
2557 static zoom_ret send_sort(ZOOM_connection c,
2558                           ZOOM_resultset resultset)
2559 {
2560     if (c->error)
2561         resultset->r_sort_spec = 0;
2562     if (resultset->r_sort_spec)
2563     {
2564         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2565         Z_SortRequest *req = apdu->u.sortRequest;
2566
2567         req->num_inputResultSetNames = 1;
2568         req->inputResultSetNames = (Z_InternationalString **)
2569             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2570         req->inputResultSetNames[0] =
2571             odr_strdup(c->odr_out, resultset->setname);
2572         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2573         req->sortSequence = resultset->r_sort_spec;
2574         resultset->r_sort_spec = 0;
2575         return send_APDU(c, apdu);
2576     }
2577     return zoom_complete;
2578 }
2579
2580 static zoom_ret send_present(ZOOM_connection c)
2581 {
2582     Z_APDU *apdu = 0;
2583     Z_PresentRequest *req = 0;
2584     int i = 0;
2585     const char *syntax = 0;
2586     const char *elementSetName = 0;
2587     ZOOM_resultset  resultset;
2588     int *start, *count;
2589
2590     if (!c->tasks)
2591     {
2592         yaz_log(log_details, "%p send_present no tasks", c);
2593         return zoom_complete;
2594     }
2595
2596     switch (c->tasks->which)
2597     {
2598     case ZOOM_TASK_SEARCH:
2599         resultset = c->tasks->u.search.resultset;
2600         start = &c->tasks->u.search.start;
2601         count = &c->tasks->u.search.count;
2602         syntax = c->tasks->u.search.syntax;
2603         elementSetName = c->tasks->u.search.elementSetName;
2604         break;
2605     case ZOOM_TASK_RETRIEVE:
2606         resultset = c->tasks->u.retrieve.resultset;
2607         start = &c->tasks->u.retrieve.start;
2608         count = &c->tasks->u.retrieve.count;
2609         syntax = c->tasks->u.retrieve.syntax;
2610         elementSetName = c->tasks->u.retrieve.elementSetName;
2611         break;
2612     default:
2613         return zoom_complete;
2614     }
2615     yaz_log(log_details, "%p send_present start=%d count=%d",
2616             c, *start, *count);
2617
2618     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2619     {
2620         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2621                        "", 0);
2622     }
2623     if (c->error)                  /* don't continue on error */
2624         return zoom_complete;
2625     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2626             resultset, *start, *count);
2627
2628     for (i = 0; i < *count; i++)
2629     {
2630         ZOOM_record rec =
2631             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2632         if (!rec)
2633             break;
2634         else
2635         {
2636             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2637             ZOOM_connection_put_event(c, event);
2638         }
2639     }
2640     *start += i;
2641     *count -= i;
2642
2643     if (*count == 0)
2644     {
2645         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2646         return zoom_complete;
2647     }
2648
2649     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2650     req = apdu->u.presentRequest;
2651
2652     if (i)
2653         yaz_log(log_details, "%p send_present skip=%d", c, i);
2654
2655     *req->resultSetStartPoint = *start + 1;
2656
2657     if (resultset->step > 0 && resultset->step < *count)
2658         *req->numberOfRecordsRequested = resultset->step;
2659     else
2660         *req->numberOfRecordsRequested = *count;
2661
2662     if (*req->numberOfRecordsRequested + *start > resultset->size)
2663         *req->numberOfRecordsRequested = resultset->size - *start;
2664     assert(*req->numberOfRecordsRequested > 0);
2665
2666     if (syntax && *syntax)
2667         req->preferredRecordSyntax =
2668             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2669
2670     if (resultset->schema && *resultset->schema)
2671     {
2672         Z_RecordComposition *compo = (Z_RecordComposition *)
2673             odr_malloc(c->odr_out, sizeof(*compo));
2674
2675         req->recordComposition = compo;
2676         compo->which = Z_RecordComp_complex;
2677         compo->u.complex = (Z_CompSpec *)
2678             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2679         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2680             odr_malloc(c->odr_out, sizeof(bool_t));
2681         *compo->u.complex->selectAlternativeSyntax = 0;
2682
2683         compo->u.complex->generic = (Z_Specification *)
2684             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2685
2686         compo->u.complex->generic->which = Z_Schema_oid;
2687         compo->u.complex->generic->schema.oid = (Odr_oid *)
2688             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2689
2690         if (!compo->u.complex->generic->schema.oid)
2691         {
2692             /* OID wasn't a schema! Try record syntax instead. */
2693
2694             compo->u.complex->generic->schema.oid = (Odr_oid *)
2695                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2696         }
2697         if (elementSetName && *elementSetName)
2698         {
2699             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2700                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2701             compo->u.complex->generic->elementSpec->which =
2702                 Z_ElementSpec_elementSetName;
2703             compo->u.complex->generic->elementSpec->u.elementSetName =
2704                 odr_strdup(c->odr_out, elementSetName);
2705         }
2706         else
2707             compo->u.complex->generic->elementSpec = 0;
2708         compo->u.complex->num_dbSpecific = 0;
2709         compo->u.complex->dbSpecific = 0;
2710         compo->u.complex->num_recordSyntax = 0;
2711         compo->u.complex->recordSyntax = 0;
2712     }
2713     else if (elementSetName && *elementSetName)
2714     {
2715         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2716             odr_malloc(c->odr_out, sizeof(*esn));
2717         Z_RecordComposition *compo = (Z_RecordComposition *)
2718             odr_malloc(c->odr_out, sizeof(*compo));
2719
2720         esn->which = Z_ElementSetNames_generic;
2721         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2722         compo->which = Z_RecordComp_simple;
2723         compo->u.simple = esn;
2724         req->recordComposition = compo;
2725     }
2726     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2727     return send_APDU(c, apdu);
2728 }
2729
2730 ZOOM_API(ZOOM_scanset)
2731     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2732 {
2733     ZOOM_scanset s;
2734     ZOOM_query q = ZOOM_query_create();
2735
2736     ZOOM_query_prefix(q, start);
2737
2738     s = ZOOM_connection_scan1(c, q);
2739     ZOOM_query_destroy(q);
2740     return s;
2741
2742 }
2743
2744 ZOOM_API(ZOOM_scanset)
2745     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2746 {
2747     ZOOM_scanset scan = 0;
2748
2749     if (!q->z_query)
2750         return 0;
2751     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2752     scan->connection = c;
2753     scan->odr = odr_createmem(ODR_DECODE);
2754     scan->options = ZOOM_options_create_with_parent(c->options);
2755     scan->refcount = 1;
2756     scan->scan_response = 0;
2757     scan->srw_scan_response = 0;
2758
2759     scan->query = q;
2760     (q->refcount)++;
2761     scan->databaseNames = set_DatabaseNames(c, c->options,
2762                                             &scan->num_databaseNames,
2763                                             scan->odr);
2764
2765     if (1)
2766     {
2767         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
2768         task->u.scan.scan = scan;
2769
2770         (scan->refcount)++;
2771         if (!c->async)
2772         {
2773             while (ZOOM_event(1, &c))
2774                 ;
2775         }
2776     }
2777     return scan;
2778 }
2779
2780 ZOOM_API(void)
2781     ZOOM_scanset_destroy(ZOOM_scanset scan)
2782 {
2783     if (!scan)
2784         return;
2785     (scan->refcount)--;
2786     if (scan->refcount == 0)
2787     {
2788         ZOOM_query_destroy(scan->query);
2789
2790         odr_destroy(scan->odr);
2791
2792         ZOOM_options_destroy(scan->options);
2793         xfree(scan);
2794     }
2795 }
2796
2797 static zoom_ret send_package(ZOOM_connection c)
2798 {
2799     ZOOM_Event event;
2800
2801     yaz_log(log_details, "%p send_package", c);
2802     if (!c->tasks)
2803         return zoom_complete;
2804     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
2805
2806     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
2807     ZOOM_connection_put_event(c, event);
2808
2809     c->buf_out = c->tasks->u.package->buf_out;
2810     c->len_out = c->tasks->u.package->len_out;
2811
2812     return do_write(c);
2813 }
2814
2815 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
2816 {
2817     ZOOM_scanset scan;
2818     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
2819     Z_ScanRequest *req = apdu->u.scanRequest;
2820
2821     yaz_log(log_details, "%p send_scan", c);
2822     if (!c->tasks)
2823         return zoom_complete;
2824     assert (c->tasks->which == ZOOM_TASK_SCAN);
2825     scan = c->tasks->u.scan.scan;
2826
2827     /* Z39.50 scan can only carry RPN */
2828     if (scan->query->z_query->which == Z_Query_type_1 ||
2829         scan->query->z_query->which == Z_Query_type_101)
2830     {
2831         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
2832         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
2833         if (cp)
2834         {
2835             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
2836             if (cd)
2837             {
2838                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
2839
2840                 yaz_query_charset_convert_rpnquery(
2841                     rpn, c->odr_out, cd);
2842                 yaz_iconv_close(cd);
2843             }
2844         }
2845         req->attributeSet = rpn->attributeSetId;
2846         if (!req->attributeSet)
2847             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
2848         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
2849             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
2850         {
2851             req->termListAndStartPoint =
2852                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
2853         }
2854         else
2855         {
2856             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
2857             return zoom_complete;
2858         }
2859     }
2860     else
2861     {
2862         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2863         return zoom_complete;
2864     }
2865
2866     *req->numberOfTermsRequested =
2867         ZOOM_options_get_int(scan->options, "number", 10);
2868
2869     req->preferredPositionInResponse =
2870         odr_intdup(c->odr_out,
2871                    ZOOM_options_get_int(scan->options, "position", 1));
2872
2873     req->stepSize =
2874         odr_intdup(c->odr_out,
2875                    ZOOM_options_get_int(scan->options, "stepSize", 0));
2876
2877     req->databaseNames = scan->databaseNames;
2878     req->num_databaseNames = scan->num_databaseNames;
2879
2880     return send_APDU(c, apdu);
2881 }
2882
2883 #if YAZ_HAVE_XML2
2884 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2885 {
2886     ZOOM_scanset scan;
2887     Z_SRW_PDU *sr = 0;
2888     const char *option_val = 0;
2889
2890     if (!c->tasks)
2891         return zoom_complete;
2892     assert (c->tasks->which == ZOOM_TASK_SCAN);
2893     scan = c->tasks->u.scan.scan;
2894
2895     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
2896
2897     /* SRU scan can only carry CQL and PQF */
2898     if (scan->query->z_query->which == Z_Query_type_104)
2899     {
2900         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
2901         sr->u.scan_request->scanClause.cql = scan->query->query_string;
2902     }
2903     else if (scan->query->z_query->which == Z_Query_type_1
2904              || scan->query->z_query->which == Z_Query_type_101)
2905     {
2906         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
2907         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
2908     }
2909     else
2910     {
2911         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2912         return zoom_complete;
2913     }
2914
2915     sr->u.scan_request->maximumTerms = odr_intdup(
2916         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
2917
2918     sr->u.scan_request->responsePosition = odr_intdup(
2919         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
2920
2921     option_val = ZOOM_options_get(scan->options, "extraArgs");
2922     yaz_encode_sru_extra(sr, c->odr_out, option_val);
2923     return send_srw(c, sr);
2924 }
2925 #else
2926 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2927 {
2928     return zoom_complete;
2929 }
2930 #endif
2931
2932
2933 ZOOM_API(size_t)
2934     ZOOM_scanset_size(ZOOM_scanset scan)
2935 {
2936     if (!scan)
2937         return 0;
2938
2939     if (scan->scan_response && scan->scan_response->entries)
2940         return scan->scan_response->entries->num_entries;
2941     else if (scan->srw_scan_response)
2942         return scan->srw_scan_response->num_terms;
2943     return 0;
2944 }
2945
2946 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
2947                                 int *occ,
2948                                 const char **value_term, size_t *value_len,
2949                                 const char **disp_term, size_t *disp_len)
2950 {
2951     size_t noent = ZOOM_scanset_size(scan);
2952
2953     *value_term = 0;
2954     *value_len = 0;
2955
2956     *disp_term = 0;
2957     *disp_len = 0;
2958
2959     *occ = 0;
2960     if (pos >= noent || pos < 0)
2961         return;
2962     if (scan->scan_response)
2963     {
2964         Z_ScanResponse *res = scan->scan_response;
2965         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
2966         {
2967             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
2968
2969             *value_term = (const char *) t->term->u.general->buf;
2970             *value_len = t->term->u.general->len;
2971             if (t->displayTerm)
2972             {
2973                 *disp_term = t->displayTerm;
2974                 *disp_len = strlen(*disp_term);
2975             }
2976             else if (t->term->which == Z_Term_general)
2977             {
2978                 *disp_term = (const char *) t->term->u.general->buf;
2979                 *disp_len = t->term->u.general->len;
2980             }
2981             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
2982         }
2983     }
2984     if (scan->srw_scan_response)
2985     {
2986         Z_SRW_scanResponse *res = scan->srw_scan_response;
2987         Z_SRW_scanTerm *t = res->terms + pos;
2988         if (t)
2989         {
2990             *value_term = t->value;
2991             *value_len = strlen(*value_term);
2992
2993             if (t->displayTerm)
2994                 *disp_term = t->displayTerm;
2995             else
2996                 *disp_term = t->value;
2997             *disp_len = strlen(*disp_term);
2998             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
2999         }
3000     }
3001 }
3002
3003 ZOOM_API(const char *)
3004     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
3005                       int *occ, int *len)
3006 {
3007     const char *value_term = 0;
3008     size_t value_len = 0;
3009     const char *disp_term = 0;
3010     size_t disp_len = 0;
3011
3012     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3013                         &disp_term, &disp_len);
3014
3015     *len = value_len;
3016     return value_term;
3017 }
3018
3019 ZOOM_API(const char *)
3020     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
3021                               int *occ, int *len)
3022 {
3023     const char *value_term = 0;
3024     size_t value_len = 0;
3025     const char *disp_term = 0;
3026     size_t disp_len = 0;
3027
3028     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3029                         &disp_term, &disp_len);
3030
3031     *len = disp_len;
3032     return disp_term;
3033 }
3034
3035 ZOOM_API(const char *)
3036     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3037 {
3038     return ZOOM_options_get(scan->options, key);
3039 }
3040
3041 ZOOM_API(void)
3042     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3043                             const char *val)
3044 {
3045     ZOOM_options_set(scan->options, key, val);
3046 }
3047
3048 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3049 {
3050     const char *str;
3051     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3052     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3053
3054     str = ZOOM_options_get(p->options, "package-name");
3055     if (str && *str)
3056         req->packageName = odr_strdup(p->odr_out, str);
3057
3058     str = ZOOM_options_get(p->options, "user-id");
3059     if (str)
3060         req->userId = odr_strdup_null(p->odr_out, str);
3061
3062     req->packageType = odr_oiddup(p->odr_out, oid);
3063
3064     str = ZOOM_options_get(p->options, "function");
3065     if (str)
3066     {
3067         if (!strcmp (str, "create"))
3068             *req->function = Z_ExtendedServicesRequest_create;
3069         if (!strcmp (str, "delete"))
3070             *req->function = Z_ExtendedServicesRequest_delete;
3071         if (!strcmp (str, "modify"))
3072             *req->function = Z_ExtendedServicesRequest_modify;
3073     }
3074
3075     str = ZOOM_options_get(p->options, "waitAction");
3076     if (str)
3077     {
3078         if (!strcmp (str, "wait"))
3079             *req->waitAction = Z_ExtendedServicesRequest_wait;
3080         if (!strcmp (str, "waitIfPossible"))
3081             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3082         if (!strcmp (str, "dontWait"))
3083             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3084         if (!strcmp (str, "dontReturnPackage"))
3085             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3086     }
3087     return apdu;
3088 }
3089
3090 static const char *ill_array_lookup(void *clientData, const char *idx)
3091 {
3092     ZOOM_package p = (ZOOM_package) clientData;
3093     return ZOOM_options_get(p->options, idx+4);
3094 }
3095
3096 static Z_External *encode_ill_request(ZOOM_package p)
3097 {
3098     ODR out = p->odr_out;
3099     ILL_Request *req;
3100     Z_External *r = 0;
3101     struct ill_get_ctl ctl;
3102
3103     ctl.odr = p->odr_out;
3104     ctl.clientData = p;
3105     ctl.f = ill_array_lookup;
3106
3107     req = ill_get_ILLRequest(&ctl, "ill", 0);
3108
3109     if (!ill_Request(out, &req, 0, 0))
3110     {
3111         int ill_request_size;
3112         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3113         if (ill_request_buf)
3114             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3115         return 0;
3116     }
3117     else
3118     {
3119         int illRequest_size = 0;
3120         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3121
3122         r = (Z_External *) odr_malloc(out, sizeof(*r));
3123         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3124         r->indirect_reference = 0;
3125         r->descriptor = 0;
3126         r->which = Z_External_single;
3127
3128         r->u.single_ASN1_type =
3129             odr_create_Odr_oct(out,
3130                                (unsigned char *)illRequest_buf,
3131                                illRequest_size);
3132     }
3133     return r;
3134 }
3135
3136 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3137 {
3138     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3139     const char *str;
3140     int len;
3141
3142     req->which = Z_IOItemOrder_esRequest;
3143     req->u.esRequest = (Z_IORequest *)
3144         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3145
3146     /* to keep part ... */
3147     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3148         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3149     req->u.esRequest->toKeep->supplDescription = 0;
3150     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3151         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3152
3153     str = ZOOM_options_get(p->options, "contact-name");
3154     req->u.esRequest->toKeep->contact->name =
3155         odr_strdup_null(p->odr_out, str);
3156
3157     str = ZOOM_options_get(p->options, "contact-phone");
3158     req->u.esRequest->toKeep->contact->phone =
3159         odr_strdup_null(p->odr_out, str);
3160
3161     str = ZOOM_options_get(p->options, "contact-email");
3162     req->u.esRequest->toKeep->contact->email =
3163         odr_strdup_null(p->odr_out, str);
3164
3165     req->u.esRequest->toKeep->addlBilling = 0;
3166
3167     /* not to keep part ... */
3168     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3169         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3170
3171     str = ZOOM_options_get(p->options, "itemorder-setname");
3172     if (!str)
3173         str = "default";
3174
3175     if (!*str)
3176         req->u.esRequest->notToKeep->resultSetItem = 0;
3177     else
3178     {
3179         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3180             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3181
3182         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3183             odr_strdup(p->odr_out, str);
3184         req->u.esRequest->notToKeep->resultSetItem->item =
3185             (int *) odr_malloc(p->odr_out, sizeof(int));
3186
3187         str = ZOOM_options_get(p->options, "itemorder-item");
3188         *req->u.esRequest->notToKeep->resultSetItem->item =
3189             (str ? atoi(str) : 1);
3190     }
3191
3192     str = ZOOM_options_getl(p->options, "doc", &len);
3193     if (str)
3194     {
3195         req->u.esRequest->notToKeep->itemRequest =
3196             z_ext_record_xml(p->odr_out, str, len);
3197     }
3198     else
3199         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3200
3201     return req;
3202 }
3203
3204 Z_APDU *create_admin_package(ZOOM_package p, int type,
3205                              Z_ESAdminOriginPartToKeep **toKeepP,
3206                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3207 {
3208     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3209     if (apdu)
3210     {
3211         Z_ESAdminOriginPartToKeep  *toKeep;
3212         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3213         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3214         const char *first_db = "Default";
3215         int num_db;
3216         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3217                                       p->odr_out);
3218         if (num_db > 0)
3219             first_db = db[0];
3220
3221         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3222         r->descriptor = 0;
3223         r->indirect_reference = 0;
3224         r->which = Z_External_ESAdmin;
3225
3226         r->u.adminService = (Z_Admin *)
3227             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3228         r->u.adminService->which = Z_Admin_esRequest;
3229         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3230             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3231
3232         toKeep = r->u.adminService->u.esRequest->toKeep =
3233             (Z_ESAdminOriginPartToKeep *)
3234             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3235         toKeep->which = type;
3236         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3237         toKeep->u.create = odr_nullval();
3238         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3239
3240         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3241             (Z_ESAdminOriginPartNotToKeep *)
3242             odr_malloc(p->odr_out,
3243                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3244         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3245         notToKeep->u.recordsWillFollow = odr_nullval();
3246         if (toKeepP)
3247             *toKeepP = toKeep;
3248         if (notToKeepP)
3249             *notToKeepP = notToKeep;
3250     }
3251     return apdu;
3252 }
3253
3254 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3255 {
3256     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3257     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3258     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3259     int len;
3260     const char *doc = ZOOM_options_getl(p->options, "doc", &len);
3261
3262     if (!doc)
3263     {
3264         doc = "";
3265         len = 0;
3266     }
3267
3268     req->taskSpecificParameters = ext;
3269     ext->direct_reference = req->packageType;
3270     ext->descriptor = 0;
3271     ext->indirect_reference = 0;
3272
3273     ext->which = Z_External_octet;
3274     ext->u.single_ASN1_type =
3275         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc, len);
3276     return apdu;
3277 }
3278
3279 static Z_APDU *create_update_package(ZOOM_package p)
3280 {
3281     Z_APDU *apdu = 0;
3282     const char *first_db = "Default";
3283     int num_db;
3284     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3285     const char *action = ZOOM_options_get(p->options, "action");
3286     int recordIdOpaque_len;
3287     const char *recordIdOpaque = ZOOM_options_getl(p->options, "recordIdOpaque",
3288         &recordIdOpaque_len);
3289     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3290     int record_len;
3291     const char *record_buf = ZOOM_options_getl(p->options, "record",
3292         &record_len);
3293     int recordOpaque_len;
3294     const char *recordOpaque_buf = ZOOM_options_getl(p->options, "recordOpaque",
3295         &recordOpaque_len);
3296     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3297     const char *version = ZOOM_options_get(p->options, "updateVersion");
3298
3299     const char *correlationInfo_note =
3300         ZOOM_options_get(p->options, "correlationInfo.note");
3301     const char *correlationInfo_id =
3302         ZOOM_options_get(p->options, "correlationInfo.id");
3303     int action_no = -1;
3304     Odr_oid *syntax_oid = 0;
3305     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3306
3307     if (!version)
3308         version = "3";
3309     if (!syntax_str)
3310         syntax_str = "xml";
3311     if (!record_buf && !recordOpaque_buf)
3312     {
3313         record_buf = "void";
3314         record_len = 4;
3315         syntax_str = "SUTRS";
3316     }
3317
3318     if (syntax_str)
3319     {
3320         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3321                                            CLASS_RECSYN, syntax_str,
3322                                            p->odr_out);
3323     }
3324     if (!syntax_oid)
3325         return 0;
3326
3327     if (num_db > 0)
3328         first_db = db[0];
3329
3330     switch(*version)
3331     {
3332     case '1':
3333         package_oid = yaz_oid_extserv_database_update_first_version;
3334         /* old update does not support specialUpdate */
3335         if (!action)
3336             action = "recordInsert";
3337         break;
3338     case '2':
3339         if (!action)
3340             action = "specialUpdate";
3341         package_oid = yaz_oid_extserv_database_update_second_version;
3342         break;
3343     case '3':
3344         if (!action)
3345             action = "specialUpdate";
3346         package_oid = yaz_oid_extserv_database_update;
3347         break;
3348     default:
3349         return 0;
3350     }
3351
3352     if (!strcmp(action, "recordInsert"))
3353         action_no = Z_IUOriginPartToKeep_recordInsert;
3354     else if (!strcmp(action, "recordReplace"))
3355         action_no = Z_IUOriginPartToKeep_recordReplace;
3356     else if (!strcmp(action, "recordDelete"))
3357         action_no = Z_IUOriginPartToKeep_recordDelete;
3358     else if (!strcmp(action, "elementUpdate"))
3359         action_no = Z_IUOriginPartToKeep_elementUpdate;
3360     else if (!strcmp(action, "specialUpdate"))
3361         action_no = Z_IUOriginPartToKeep_specialUpdate;
3362     else
3363         return 0;
3364
3365     apdu = create_es_package(p, package_oid);
3366     if (apdu)
3367     {
3368         Z_IUOriginPartToKeep *toKeep;
3369         Z_IUSuppliedRecords *notToKeep;
3370         Z_External *r = (Z_External *)
3371             odr_malloc(p->odr_out, sizeof(*r));
3372         const char *elementSetName =
3373             ZOOM_options_get(p->options, "elementSetName");
3374
3375         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3376
3377         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3378         r->descriptor = 0;
3379         r->which = Z_External_update;
3380         r->indirect_reference = 0;
3381         r->u.update = (Z_IUUpdate *)
3382             odr_malloc(p->odr_out, sizeof(*r->u.update));
3383
3384         r->u.update->which = Z_IUUpdate_esRequest;
3385         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3386             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3387         toKeep = r->u.update->u.esRequest->toKeep =
3388             (Z_IUOriginPartToKeep *)
3389             odr_malloc(p->odr_out, sizeof(*toKeep));
3390
3391         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3392         toKeep->schema = 0;
3393
3394         toKeep->elementSetName = odr_strdup_null(p->odr_out, elementSetName);
3395
3396         toKeep->actionQualifier = 0;
3397         toKeep->action = odr_intdup(p->odr_out, action_no);
3398
3399         notToKeep = r->u.update->u.esRequest->notToKeep =
3400             (Z_IUSuppliedRecords *)
3401             odr_malloc(p->odr_out, sizeof(*notToKeep));
3402         notToKeep->num = 1;
3403         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3404             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3405         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3406             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3407         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3408         if (recordIdOpaque)
3409         {
3410             notToKeep->elements[0]->u.opaque =
3411                 odr_create_Odr_oct(p->odr_out,
3412                                    (const unsigned char *) recordIdOpaque,
3413                                    recordIdOpaque_len);
3414         }
3415         else if (recordIdNumber)
3416         {
3417             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3418
3419             notToKeep->elements[0]->u.number =
3420                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3421         }
3422         else
3423             notToKeep->elements[0]->u.opaque = 0;
3424         notToKeep->elements[0]->supplementalId = 0;
3425         if (correlationInfo_note || correlationInfo_id)
3426         {
3427             Z_IUCorrelationInfo *ci;
3428             ci = notToKeep->elements[0]->correlationInfo =
3429                 (Z_IUCorrelationInfo *) odr_malloc(p->odr_out, sizeof(*ci));
3430             ci->note = odr_strdup_null(p->odr_out, correlationInfo_note);
3431             ci->id = correlationInfo_id ?
3432                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3433         }
3434         else
3435             notToKeep->elements[0]->correlationInfo = 0;
3436         if (recordOpaque_buf)
3437         {
3438             notToKeep->elements[0]->record =
3439                 z_ext_record_oid_any(p->odr_out, syntax_oid,
3440                                  recordOpaque_buf, recordOpaque_len);
3441         }
3442         else
3443         {
3444             notToKeep->elements[0]->record =
3445                 z_ext_record_oid(p->odr_out, syntax_oid,
3446                                  record_buf, record_len);
3447         }
3448     }
3449     if (0 && apdu)
3450     {
3451         ODR print = odr_createmem(ODR_PRINT);
3452
3453         z_APDU(print, &apdu, 0, 0);
3454         odr_destroy(print);
3455     }
3456     return apdu;
3457 }
3458
3459 ZOOM_API(void)
3460     ZOOM_package_send(ZOOM_package p, const char *type)
3461 {
3462     Z_APDU *apdu = 0;
3463     ZOOM_connection c;
3464     if (!p)
3465         return;
3466     c = p->connection;
3467     odr_reset(p->odr_out);
3468     xfree(p->buf_out);
3469     p->buf_out = 0;
3470     if (!strcmp(type, "itemorder"))
3471     {
3472         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3473         if (apdu)
3474         {
3475             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3476
3477             r->direct_reference =
3478                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3479             r->descriptor = 0;
3480             r->which = Z_External_itemOrder;
3481             r->indirect_reference = 0;
3482             r->u.itemOrder = encode_item_order(p);
3483
3484             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3485         }
3486     }
3487     else if (!strcmp(type, "create"))  /* create database */
3488     {
3489         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3490                                     0, 0);
3491     }
3492     else if (!strcmp(type, "drop"))  /* drop database */
3493     {
3494         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3495                                     0, 0);
3496     }
3497     else if (!strcmp(type, "commit"))  /* commit changes */
3498     {
3499         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3500                                     0, 0);
3501     }
3502     else if (!strcmp(type, "update")) /* update record(s) */
3503     {
3504         apdu = create_update_package(p);
3505     }
3506     else if (!strcmp(type, "xmlupdate"))
3507     {
3508         apdu = create_xmlupdate_package(p);
3509     }
3510     if (apdu)
3511     {
3512         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3513         {
3514             char *buf;
3515
3516             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3517             task->u.package = p;
3518             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3519             p->buf_out = (char *) xmalloc(p->len_out);
3520             memcpy(p->buf_out, buf, p->len_out);
3521
3522             (p->refcount)++;
3523             if (!c->async)
3524             {
3525                 while (ZOOM_event(1, &c))
3526                     ;
3527             }
3528         }
3529     }
3530 }
3531
3532 ZOOM_API(ZOOM_package)
3533     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3534 {
3535     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3536
3537     p->connection = c;
3538     p->odr_out = odr_createmem(ODR_ENCODE);
3539     p->options = ZOOM_options_create_with_parent2(options, c->options);
3540     p->refcount = 1;
3541     p->buf_out = 0;
3542     p->len_out = 0;
3543     return p;
3544 }
3545
3546 ZOOM_API(void)
3547     ZOOM_package_destroy(ZOOM_package p)
3548 {
3549     if (!p)
3550         return;
3551     (p->refcount)--;
3552     if (p->refcount == 0)
3553     {
3554         odr_destroy(p->odr_out);
3555         xfree(p->buf_out);
3556
3557         ZOOM_options_destroy(p->options);
3558         xfree(p);
3559     }
3560 }
3561
3562 ZOOM_API(const char *)
3563     ZOOM_package_option_get(ZOOM_package p, const char *key)
3564 {
3565     return ZOOM_options_get(p->options, key);
3566 }
3567
3568 ZOOM_API(const char *)
3569     ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
3570 {
3571     return ZOOM_options_getl(p->options, key, lenp);
3572 }
3573
3574 ZOOM_API(void)
3575     ZOOM_package_option_set(ZOOM_package p, const char *key,
3576                             const char *val)
3577 {
3578     ZOOM_options_set(p->options, key, val);
3579 }
3580
3581 ZOOM_API(void)
3582     ZOOM_package_option_setl(ZOOM_package p, const char *key,
3583                              const char *val, int len)
3584 {
3585     ZOOM_options_setl(p->options, key, val, len);
3586 }
3587
3588 static int ZOOM_connection_exec_task(ZOOM_connection c)
3589 {
3590     ZOOM_task task = c->tasks;
3591     zoom_ret ret = zoom_complete;
3592
3593     if (!task)
3594         return 0;
3595     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3596             c, task->which, task->running);
3597     if (c->error != ZOOM_ERROR_NONE)
3598     {
3599         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3600                 "removing tasks because of error = %d", c, c->error);
3601         ZOOM_connection_remove_tasks(c);
3602         return 0;
3603     }
3604     if (task->running)
3605     {
3606         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3607                 "task already running", c);
3608         return 0;
3609     }
3610     task->running = 1;
3611     ret = zoom_complete;
3612     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3613     {
3614         switch (task->which)
3615         {
3616         case ZOOM_TASK_SEARCH:
3617             if (c->proto == PROTO_HTTP)
3618                 ret = ZOOM_connection_srw_send_search(c);
3619             else
3620                 ret = ZOOM_connection_send_search(c);
3621             break;
3622         case ZOOM_TASK_RETRIEVE:
3623             if (c->proto == PROTO_HTTP)
3624                 ret = ZOOM_connection_srw_send_search(c);
3625             else
3626                 ret = send_present(c);
3627             break;
3628         case ZOOM_TASK_CONNECT:
3629             ret = do_connect(c);
3630             break;
3631         case ZOOM_TASK_SCAN:
3632             if (c->proto == PROTO_HTTP)
3633                 ret = ZOOM_connection_srw_send_scan(c);
3634             else
3635                 ret = ZOOM_connection_send_scan(c);
3636             break;
3637         case ZOOM_TASK_PACKAGE:
3638             ret = send_package(c);
3639             break;
3640         case ZOOM_TASK_SORT:
3641             c->tasks->u.sort.resultset->r_sort_spec =
3642                 c->tasks->u.sort.q->sort_spec;
3643             ret = send_sort(c, c->tasks->u.sort.resultset);
3644             break;
3645         }
3646     }
3647     else
3648     {
3649         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3650                 "remove tasks because no connection exist", c);
3651         ZOOM_connection_remove_tasks(c);
3652     }
3653     if (ret == zoom_complete)
3654     {
3655         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3656                 "task removed (complete)", c);
3657         ZOOM_connection_remove_task(c);
3658         return 0;
3659     }
3660     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3661             "task pending", c);
3662     return 1;
3663 }
3664
3665 static zoom_ret send_sort_present(ZOOM_connection c)
3666 {
3667     zoom_ret r = zoom_complete;
3668
3669     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3670         r = send_sort(c, c->tasks->u.search.resultset);
3671     if (r == zoom_complete)
3672         r = send_present(c);
3673     return r;
3674 }
3675
3676 static int es_response_taskpackage_update(ZOOM_connection c,
3677                 Z_IUUpdateTaskPackage *utp)
3678 {
3679         if (utp && utp->targetPart)
3680         {
3681                 Z_IUTargetPart *targetPart = utp->targetPart;
3682                 switch ( *targetPart->updateStatus ) {
3683                         case Z_IUTargetPart_success:
3684                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "success");
3685                                 break;
3686                         case Z_IUTargetPart_partial:
3687                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "partial");
3688                                 break;
3689                         case Z_IUTargetPart_failure:
3690                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "failure");
3691                                 if (targetPart->globalDiagnostics && targetPart->num_globalDiagnostics > 0)
3692                                         response_diag(c, targetPart->globalDiagnostics[0]);
3693                                 break;
3694                 }
3695                 // NOTE: Individual record status, surrogate diagnostics, and supplemental diagnostics ARE NOT REPORTED.
3696         }
3697     return 1;
3698 }
3699
3700 static int es_response_taskpackage(ZOOM_connection c,
3701                                    Z_TaskPackage *taskPackage)
3702 {
3703         // targetReference
3704         Odr_oct *id = taskPackage->targetReference;
3705         if (id)
3706                 ZOOM_options_setl(c->tasks->u.package->options,
3707                                                         "targetReference", (char*) id->buf, id->len);
3708
3709         // taskStatus
3710         switch ( *taskPackage->taskStatus ) {
3711                 case Z_TaskPackage_pending:
3712                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "pending");
3713                         break;
3714                 case Z_TaskPackage_active:
3715                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "active");
3716                         break;
3717                 case Z_TaskPackage_complete:
3718                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "complete");
3719                         break;
3720                 case Z_TaskPackage_aborted:
3721                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "aborted");
3722                         if ( taskPackage->num_packageDiagnostics && taskPackage->packageDiagnostics )
3723                                 response_diag(c, taskPackage->packageDiagnostics[0]);
3724                         break;
3725         }
3726
3727         // taskSpecificParameters
3728         // NOTE: Only Update implemented, no others.
3729         if ( taskPackage->taskSpecificParameters->which == Z_External_update ) {
3730                         Z_IUUpdateTaskPackage *utp = taskPackage->taskSpecificParameters->u.update->u.taskPackage;
3731                         es_response_taskpackage_update(c, utp);
3732         }
3733         return 1;
3734 }
3735
3736
3737 static int es_response(ZOOM_connection c,
3738                        Z_ExtendedServicesResponse *res)
3739 {
3740     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3741         return 0;
3742     switch (*res->operationStatus) {
3743         case Z_ExtendedServicesResponse_done:
3744             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "done");
3745             break;
3746         case Z_ExtendedServicesResponse_accepted:
3747             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "accepted");
3748             break;
3749         case Z_ExtendedServicesResponse_failure:
3750             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "failure");
3751             if (res->diagnostics && res->num_diagnostics > 0)
3752                 response_diag(c, res->diagnostics[0]);
3753             break;
3754     }
3755     if (res->taskPackage &&
3756         res->taskPackage->which == Z_External_extendedService)
3757     {
3758         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
3759         es_response_taskpackage(c, taskPackage);
3760     }
3761     if (res->taskPackage &&
3762         res->taskPackage->which == Z_External_octet)
3763     {
3764         Odr_oct *doc = res->taskPackage->u.octet_aligned;
3765         ZOOM_options_setl(c->tasks->u.package->options,
3766                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
3767     }
3768     return 1;
3769 }
3770
3771 static void interpret_init_diag(ZOOM_connection c,
3772                                 Z_DiagnosticFormat *diag)
3773 {
3774     if (diag->num > 0)
3775     {
3776         Z_DiagnosticFormat_s *ds = diag->elements[0];
3777         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
3778             response_default_diag(c, ds->u.defaultDiagRec);
3779     }
3780 }
3781
3782
3783 static void interpret_otherinformation_field(ZOOM_connection c,
3784                                              Z_OtherInformation *ui)
3785 {
3786     int i;
3787     for (i = 0; i < ui->num_elements; i++)
3788     {
3789         Z_OtherInformationUnit *unit = ui->list[i];
3790         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
3791             unit->information.externallyDefinedInfo &&
3792             unit->information.externallyDefinedInfo->which ==
3793             Z_External_diag1)
3794         {
3795             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
3796         }
3797     }
3798 }
3799
3800
3801 static void set_init_option(const char *name, void *clientData) {
3802     ZOOM_connection c = (ZOOM_connection) clientData;
3803     char buf[80];
3804
3805     sprintf(buf, "init_opt_%.70s", name);
3806     ZOOM_connection_option_set(c, buf, "1");
3807 }
3808
3809
3810 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
3811 {
3812     Z_InitResponse *initrs;
3813
3814     ZOOM_connection_set_mask(c, 0);
3815     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
3816     switch(apdu->which)
3817     {
3818     case Z_APDU_initResponse:
3819         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
3820         initrs = apdu->u.initResponse;
3821         ZOOM_connection_option_set(c, "serverImplementationId",
3822                                    initrs->implementationId ?
3823                                    initrs->implementationId : "");
3824         ZOOM_connection_option_set(c, "serverImplementationName",
3825                                    initrs->implementationName ?
3826                                    initrs->implementationName : "");
3827         ZOOM_connection_option_set(c, "serverImplementationVersion",
3828                                    initrs->implementationVersion ?
3829                                    initrs->implementationVersion : "");
3830         /* Set the three old options too, for old applications */
3831         ZOOM_connection_option_set(c, "targetImplementationId",
3832                                    initrs->implementationId ?
3833                                    initrs->implementationId : "");
3834         ZOOM_connection_option_set(c, "targetImplementationName",
3835                                    initrs->implementationName ?
3836                                    initrs->implementationName : "");
3837         ZOOM_connection_option_set(c, "targetImplementationVersion",
3838                                    initrs->implementationVersion ?
3839                                    initrs->implementationVersion : "");
3840
3841         /* Make initrs->options available as ZOOM-level options */
3842         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
3843
3844         if (!*initrs->result)
3845         {
3846             Z_External *uif = initrs->userInformationField;
3847
3848             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
3849
3850             if (uif && uif->which == Z_External_userInfo1)
3851                 interpret_otherinformation_field(c, uif->u.userInfo1);
3852         }
3853         else
3854         {
3855             char *cookie =
3856                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
3857                                       yaz_oid_userinfo_cookie, 1, 0);
3858             xfree(c->cookie_in);
3859             c->cookie_in = 0;
3860             if (cookie)
3861                 c->cookie_in = xstrdup(cookie);
3862             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
3863                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
3864                 c->support_named_resultsets = 1;
3865             if (c->tasks)
3866             {
3867                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
3868                 ZOOM_connection_remove_task(c);
3869             }
3870             ZOOM_connection_exec_task(c);
3871         }
3872         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
3873         {
3874             NMEM tmpmem = nmem_create();
3875             Z_CharSetandLanguageNegotiation *p =
3876                 yaz_get_charneg_record(initrs->otherInfo);
3877
3878             if (p)
3879             {
3880                 char *charset = NULL, *lang = NULL;
3881                 int sel;
3882
3883                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
3884                 yaz_log(log_details, "%p recv_apdu target accepted: "
3885                         "charset %s, language %s, select %d",
3886                         c,
3887                         charset ? charset : "none", lang ? lang : "none", sel);
3888                 if (charset)
3889                     ZOOM_connection_option_set(c, "negotiation-charset",
3890                                                charset);
3891                 if (lang)
3892                     ZOOM_connection_option_set(c, "negotiation-lang",
3893                                                lang);
3894
3895                 ZOOM_connection_option_set(
3896                     c,  "negotiation-charset-in-effect-for-records",
3897                     (sel != 0) ? "1" : "0");
3898                 nmem_destroy(tmpmem);
3899             }
3900         }
3901         break;
3902     case Z_APDU_searchResponse:
3903         yaz_log(log_api, "%p recv_apdu Search response", c);
3904         handle_search_response(c, apdu->u.searchResponse);
3905         if (send_sort_present(c) == zoom_complete)
3906             ZOOM_connection_remove_task(c);
3907         break;
3908     case Z_APDU_presentResponse:
3909         yaz_log(log_api, "%p recv_apdu Present response", c);
3910         handle_present_response(c, apdu->u.presentResponse);
3911         if (send_present(c) == zoom_complete)
3912             ZOOM_connection_remove_task(c);
3913         break;
3914     case Z_APDU_sortResponse:
3915         yaz_log(log_api, "%p recv_apdu Sort response", c);
3916         sort_response(c, apdu->u.sortResponse);
3917         if (send_present(c) == zoom_complete)
3918             ZOOM_connection_remove_task(c);
3919         break;
3920     case Z_APDU_scanResponse:
3921         yaz_log(log_api, "%p recv_apdu Scan response", c);
3922         scan_response(c, apdu->u.scanResponse);
3923         ZOOM_connection_remove_task(c);
3924         break;
3925     case Z_APDU_extendedServicesResponse:
3926         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
3927         es_response(c, apdu->u.extendedServicesResponse);
3928         ZOOM_connection_remove_task(c);
3929         break;
3930     case Z_APDU_close:
3931         yaz_log(log_api, "%p recv_apdu Close PDU", c);
3932         if (!ZOOM_test_reconnect(c))
3933         {
3934             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
3935             do_close(c);
3936         }
3937         break;
3938     default:
3939         yaz_log(log_api, "%p Received unknown PDU", c);
3940         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
3941         do_close(c);
3942     }
3943 }
3944
3945 #if YAZ_HAVE_XML2
3946 static zoom_ret handle_srw_response(ZOOM_connection c,
3947                                     Z_SRW_searchRetrieveResponse *res)
3948 {
3949     ZOOM_resultset resultset = 0;
3950     int i;
3951     NMEM nmem;
3952     ZOOM_Event event;
3953     int *start, *count;
3954     const char *syntax, *elementSetName;
3955
3956     if (!c->tasks)
3957         return zoom_complete;
3958
3959     switch(c->tasks->which)
3960     {
3961     case ZOOM_TASK_SEARCH:
3962         resultset = c->tasks->u.search.resultset;
3963         start = &c->tasks->u.search.start;
3964         count = &c->tasks->u.search.count;
3965         syntax = c->tasks->u.search.syntax;
3966         elementSetName = c->tasks->u.search.elementSetName;
3967         break;
3968     case ZOOM_TASK_RETRIEVE:
3969         resultset = c->tasks->u.retrieve.resultset;
3970         start = &c->tasks->u.retrieve.start;
3971         count = &c->tasks->u.retrieve.count;
3972         syntax = c->tasks->u.retrieve.syntax;
3973         elementSetName = c->tasks->u.retrieve.elementSetName;
3974         break;
3975     default:
3976         return zoom_complete;
3977     }
3978     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
3979     ZOOM_connection_put_event(c, event);
3980
3981     resultset->size = 0;
3982
3983     if (res->resultSetId)
3984         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
3985
3986     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
3987
3988     if (res->numberOfRecords)
3989         resultset->size = *res->numberOfRecords;
3990
3991     for (i = 0; i<res->num_records; i++)
3992     {
3993         int pos;
3994         Z_SRW_record *sru_rec;
3995         Z_SRW_diagnostic *diag = 0;
3996         int num_diag;
3997
3998         Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
3999             odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
4000
4001         if (res->records[i].recordPosition &&
4002             *res->records[i].recordPosition > 0)
4003             pos = *res->records[i].recordPosition - 1;
4004         else
4005             pos = *start + i;
4006
4007         sru_rec = &res->records[i];
4008
4009         npr->databaseName = 0;
4010         npr->which = Z_NamePlusRecord_databaseRecord;
4011         npr->u.databaseRecord = (Z_External *)
4012             odr_malloc(c->odr_in, sizeof(Z_External));
4013         npr->u.databaseRecord->descriptor = 0;
4014         npr->u.databaseRecord->direct_reference =
4015             odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
4016         npr->u.databaseRecord->which = Z_External_octet;
4017
4018         npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
4019             odr_malloc(c->odr_in, sizeof(Odr_oct));
4020         npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
4021             sru_rec->recordData_buf;
4022         npr->u.databaseRecord->u.octet_aligned->len =
4023             npr->u.databaseRecord->u.octet_aligned->size =
4024             sru_rec->recordData_len;
4025
4026         if (sru_rec->recordSchema
4027             && !strcmp(sru_rec->recordSchema,
4028                        "info:srw/schema/1/diagnostics-v1.1"))
4029         {
4030             sru_decode_surrogate_diagnostics(sru_rec->recordData_buf,
4031                                              sru_rec->recordData_len,
4032                                              &diag, &num_diag,
4033                                              resultset->odr);
4034         }
4035         record_cache_add(resultset, npr, pos, syntax, elementSetName,
4036                          sru_rec->recordSchema, diag);
4037     }
4038     *count -= i;
4039     *start += i;
4040     if (*count + *start > resultset->size)
4041         *count = resultset->size - *start;
4042     if (*count < 0)
4043         *count = 0;
4044
4045     if (res->num_diagnostics > 0)
4046         set_SRU_error(c, &res->diagnostics[0]);
4047     nmem = odr_extract_mem(c->odr_in);
4048     nmem_transfer(odr_getmem(resultset->odr), nmem);
4049     nmem_destroy(nmem);
4050
4051     if (*count > 0)
4052         return ZOOM_connection_srw_send_search(c);
4053     return zoom_complete;
4054 }
4055 #endif
4056
4057 #if YAZ_HAVE_XML2
4058 static void handle_srw_scan_response(ZOOM_connection c,
4059                                      Z_SRW_scanResponse *res)
4060 {
4061     NMEM nmem = odr_extract_mem(c->odr_in);
4062     ZOOM_scanset scan;
4063
4064     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
4065         return;
4066     scan = c->tasks->u.scan.scan;
4067
4068     if (res->num_diagnostics > 0)
4069         set_SRU_error(c, &res->diagnostics[0]);
4070
4071     scan->scan_response = 0;
4072     scan->srw_scan_response = res;
4073     nmem_transfer(odr_getmem(scan->odr), nmem);
4074
4075     ZOOM_options_set_int(scan->options, "number", res->num_terms);
4076     nmem_destroy(nmem);
4077 }
4078 #endif
4079
4080 #if YAZ_HAVE_XML2
4081 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
4082 {
4083     zoom_ret cret = zoom_complete;
4084     int ret = -1;
4085     const char *addinfo = 0;
4086     const char *connection_head = z_HTTP_header_lookup(hres->headers,
4087                                                        "Connection");
4088     ZOOM_connection_set_mask(c, 0);
4089     yaz_log(log_details, "%p handle_http", c);
4090
4091     if (!yaz_srw_check_content_type(hres))
4092         addinfo = "content-type";
4093     else
4094     {
4095         Z_SOAP *soap_package = 0;
4096         ODR o = c->odr_in;
4097         Z_SOAP_Handler soap_handlers[2] = {
4098             {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
4099             {0, 0, 0}
4100         };
4101         ret = z_soap_codec(o, &soap_package,
4102                            &hres->content_buf, &hres->content_len,
4103                            soap_handlers);
4104         if (!ret && soap_package->which == Z_SOAP_generic &&
4105             soap_package->u.generic->no == 0)
4106         {
4107             Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
4108
4109             ZOOM_options_set(c->options, "sru_version", sr->srw_version);
4110             if (sr->which == Z_SRW_searchRetrieve_response)
4111                 cret = handle_srw_response(c, sr->u.response);
4112             else if (sr->which == Z_SRW_scan_response)
4113                 handle_srw_scan_response(c, sr->u.scan_response);
4114             else
4115                 ret = -1;
4116         }
4117         else if (!ret && (soap_package->which == Z_SOAP_fault
4118                           || soap_package->which == Z_SOAP_error))
4119         {
4120             set_HTTP_error(c, hres->code,
4121                            soap_package->u.fault->fault_code,
4122                            soap_package->u.fault->fault_string);
4123         }
4124         else
4125             ret = -1;
4126     }
4127     if (ret)
4128     {
4129         if (hres->code != 200)
4130             set_HTTP_error(c, hres->code, 0, 0);
4131         else
4132             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
4133         do_close(c);
4134     }
4135     if (cret == zoom_complete)
4136         ZOOM_connection_remove_task(c);
4137     if (!strcmp(hres->version, "1.0"))
4138     {
4139         /* HTTP 1.0: only if Keep-Alive we stay alive.. */
4140         if (!connection_head || strcmp(connection_head, "Keep-Alive"))
4141             do_close(c);
4142     }
4143     else
4144     {
4145         /* HTTP 1.1: only if no close we stay alive .. */
4146         if (connection_head && !strcmp(connection_head, "close"))
4147             do_close(c);
4148     }
4149 }
4150 #endif
4151
4152 static int do_read(ZOOM_connection c)
4153 {
4154     int r, more;
4155     ZOOM_Event event;
4156
4157     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
4158     ZOOM_connection_put_event(c, event);
4159
4160     r = cs_get(c->cs, &c->buf_in, &c->len_in);
4161     more = cs_more(c->cs);
4162     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4163     if (r == 1)
4164         return 0;
4165     if (r <= 0)
4166     {
4167         if (!ZOOM_test_reconnect(c))
4168         {
4169             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4170             do_close(c);
4171         }
4172     }
4173     else
4174     {
4175         Z_GDU *gdu;
4176         ZOOM_Event event;
4177
4178         odr_reset(c->odr_in);
4179         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4180         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4181         ZOOM_connection_put_event(c, event);
4182
4183         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4184         {
4185             int x;
4186             int err = odr_geterrorx(c->odr_in, &x);
4187             char msg[100];
4188             const char *element = odr_getelement(c->odr_in);
4189             yaz_snprintf(msg, sizeof(msg),
4190                     "ODR code %d:%d element=%s offset=%d",
4191                     err, x, element ? element : "<unknown>",
4192                     odr_offset(c->odr_in));
4193             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4194             if (log_api)
4195             {
4196                 FILE *ber_file = yaz_log_file();
4197                 if (ber_file)
4198                     odr_dumpBER(ber_file, c->buf_in, r);
4199             }
4200             do_close(c);
4201         }
4202         else
4203         {
4204             if (c->odr_print)
4205                 z_GDU(c->odr_print, &gdu, 0, 0);
4206             if (gdu->which == Z_GDU_Z3950)
4207                 recv_apdu(c, gdu->u.z3950);
4208             else if (gdu->which == Z_GDU_HTTP_Response)
4209             {
4210 #if YAZ_HAVE_XML2
4211                 handle_http(c, gdu->u.HTTP_Response);
4212 #else
4213                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4214                 do_close(c);
4215 #endif
4216             }
4217         }
4218         c->reconnect_ok = 0;
4219     }
4220     return 1;
4221 }
4222
4223 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4224 {
4225     int r;
4226     ZOOM_Event event;
4227
4228     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4229     ZOOM_connection_put_event(c, event);
4230
4231     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4232     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4233     {
4234         yaz_log(log_details, "%p do_write_ex write failed", c);
4235         if (ZOOM_test_reconnect(c))
4236         {
4237             return zoom_pending;
4238         }
4239         if (c->state == STATE_CONNECTING)
4240             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4241         else
4242             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4243         do_close(c);
4244         return zoom_complete;
4245     }
4246     else if (r == 1)
4247     {
4248         int mask = ZOOM_SELECT_EXCEPT;
4249         if (c->cs->io_pending & CS_WANT_WRITE)
4250             mask += ZOOM_SELECT_WRITE;
4251         if (c->cs->io_pending & CS_WANT_READ)
4252             mask += ZOOM_SELECT_READ;
4253         ZOOM_connection_set_mask(c, mask);
4254         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4255                 c, c->mask);
4256     }
4257     else
4258     {
4259         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4260         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4261                 c, c->mask);
4262     }
4263     return zoom_pending;
4264 }
4265
4266 static zoom_ret do_write(ZOOM_connection c)
4267 {
4268     return do_write_ex(c, c->buf_out, c->len_out);
4269 }
4270
4271
4272 ZOOM_API(const char *)
4273     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4274 {
4275     return ZOOM_options_get(c->options, key);
4276 }
4277
4278 ZOOM_API(const char *)
4279     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4280 {
4281     return ZOOM_options_getl(c->options, key, lenp);
4282 }
4283
4284 ZOOM_API(void)
4285     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4286                                const char *val)
4287 {
4288     ZOOM_options_set(c->options, key, val);
4289 }
4290
4291 ZOOM_API(void)
4292     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4293                                 const char *val, int len)
4294 {
4295     ZOOM_options_setl(c->options, key, val, len);
4296 }
4297
4298 ZOOM_API(const char *)
4299     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4300 {
4301     return ZOOM_options_get(r->options, key);
4302 }
4303
4304 ZOOM_API(void)
4305     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4306                               const char *val)
4307 {
4308     ZOOM_options_set(r->options, key, val);
4309 }
4310
4311
4312 ZOOM_API(int)
4313     ZOOM_connection_errcode(ZOOM_connection c)
4314 {
4315     return ZOOM_connection_error(c, 0, 0);
4316 }
4317
4318 ZOOM_API(const char *)
4319     ZOOM_connection_errmsg(ZOOM_connection c)
4320 {
4321     const char *msg;
4322     ZOOM_connection_error(c, &msg, 0);
4323     return msg;
4324 }
4325
4326 ZOOM_API(const char *)
4327     ZOOM_connection_addinfo(ZOOM_connection c)
4328 {
4329     const char *addinfo;
4330     ZOOM_connection_error(c, 0, &addinfo);
4331     return addinfo;
4332 }
4333
4334 ZOOM_API(const char *)
4335     ZOOM_connection_diagset(ZOOM_connection c)
4336 {
4337     const char *diagset;
4338     ZOOM_connection_error_x(c, 0, 0, &diagset);
4339     return diagset;
4340 }
4341
4342 ZOOM_API(const char *)
4343     ZOOM_diag_str(int error)
4344 {
4345     switch (error)
4346     {
4347     case ZOOM_ERROR_NONE:
4348         return "No error";
4349     case ZOOM_ERROR_CONNECT:
4350         return "Connect failed";
4351     case ZOOM_ERROR_MEMORY:
4352         return "Out of memory";
4353     case ZOOM_ERROR_ENCODE:
4354         return "Encoding failed";
4355     case ZOOM_ERROR_DECODE:
4356         return "Decoding failed";
4357     case ZOOM_ERROR_CONNECTION_LOST:
4358         return "Connection lost";
4359     case ZOOM_ERROR_INIT:
4360         return "Init rejected";
4361     case ZOOM_ERROR_INTERNAL:
4362         return "Internal failure";
4363     case ZOOM_ERROR_TIMEOUT:
4364         return "Timeout";
4365     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4366         return "Unsupported protocol";
4367     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4368         return "Unsupported query type";
4369     case ZOOM_ERROR_INVALID_QUERY:
4370         return "Invalid query";
4371     case ZOOM_ERROR_CQL_PARSE:
4372         return "CQL parsing error";
4373     case ZOOM_ERROR_CQL_TRANSFORM:
4374         return "CQL transformation error";
4375     case ZOOM_ERROR_CCL_CONFIG:
4376         return "CCL configuration error";
4377     case ZOOM_ERROR_CCL_PARSE:
4378         return "CCL parsing error";
4379     default:
4380         return diagbib1_str(error);
4381     }
4382 }
4383
4384 ZOOM_API(int)
4385     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4386                             const char **addinfo, const char **diagset)
4387 {
4388     int error = c->error;
4389     if (cp)
4390     {
4391         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4392             *cp = ZOOM_diag_str(error);
4393         else if (!strcmp(c->diagset, "HTTP"))
4394             *cp = z_HTTP_errmsg(c->error);
4395         else if (!strcmp(c->diagset, "Bib-1"))
4396             *cp = ZOOM_diag_str(error);
4397         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4398             *cp = yaz_diag_srw_str(c->error);
4399         else
4400             *cp = "Unknown error and diagnostic set";
4401     }
4402     if (addinfo)
4403         *addinfo = c->addinfo ? c->addinfo : "";
4404     if (diagset)
4405         *diagset = c->diagset ? c->diagset : "";
4406     return c->error;
4407 }
4408
4409 ZOOM_API(int)
4410     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4411                           const char **addinfo)
4412 {
4413     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4414 }
4415
4416 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4417 {
4418     ZOOM_Event event = 0;
4419     int r = cs_look(c->cs);
4420     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4421             c, mask, r);
4422
4423     if (r == CS_NONE)
4424     {
4425         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4426         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4427         do_close(c);
4428         ZOOM_connection_put_event(c, event);
4429     }
4430     else if (r == CS_CONNECT)
4431     {
4432         int ret = ret = cs_rcvconnect(c->cs);
4433         yaz_log(log_details, "%p ZOOM_connection_do_io "
4434                 "cs_rcvconnect returned %d", c, ret);
4435         if (ret == 1)
4436         {
4437             int mask = ZOOM_SELECT_EXCEPT;
4438             if (c->cs->io_pending & CS_WANT_WRITE)
4439                 mask += ZOOM_SELECT_WRITE;
4440             if (c->cs->io_pending & CS_WANT_READ)
4441                 mask += ZOOM_SELECT_READ;
4442             ZOOM_connection_set_mask(c, mask);
4443             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4444             ZOOM_connection_put_event(c, event);
4445         }
4446         else if (ret == 0)
4447         {
4448             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4449             ZOOM_connection_put_event(c, event);
4450             get_cert(c);
4451             if (c->proto == PROTO_Z3950)
4452                 ZOOM_connection_send_init(c);
4453             else
4454             {
4455                 /* no init request for SRW .. */
4456                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4457                 ZOOM_connection_remove_task(c);
4458                 ZOOM_connection_set_mask(c, 0);
4459                 ZOOM_connection_exec_task(c);
4460             }
4461             c->state = STATE_ESTABLISHED;
4462         }
4463         else
4464         {
4465             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4466             do_close(c);
4467         }
4468     }
4469     else
4470     {
4471         if (mask & ZOOM_SELECT_EXCEPT)
4472         {
4473             if (!ZOOM_test_reconnect(c))
4474             {
4475                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4476                 do_close(c);
4477             }
4478             return;
4479         }
4480         if (mask & ZOOM_SELECT_READ)
4481             do_read(c);
4482         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4483             do_write(c);
4484     }
4485 }
4486
4487 ZOOM_API(int)
4488     ZOOM_connection_last_event(ZOOM_connection cs)
4489 {
4490     if (!cs)
4491         return ZOOM_EVENT_NONE;
4492     return cs->last_event;
4493 }
4494
4495
4496 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4497 {
4498     WRBUF wrbuf = (WRBUF) client_data;
4499     wrbuf_puts(wrbuf, buf);
4500 }
4501
4502 /*
4503  * Returns an xmalloc()d string containing RPN that corresponds to the
4504  * CQL passed in.  On error, sets the Connection object's error state
4505  * and returns a null pointer.
4506  * ### We could cache CQL parser and/or transformer in Connection.
4507  */
4508 static char *cql2pqf(ZOOM_connection c, const char *cql)
4509 {
4510     CQL_parser parser;
4511     int error;
4512     const char *cqlfile;
4513     cql_transform_t trans;
4514     char *result = 0;
4515
4516     parser = cql_parser_create();
4517     if ((error = cql_parser_string(parser, cql)) != 0) {
4518         cql_parser_destroy(parser);
4519         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4520         return 0;
4521     }
4522
4523     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4524     if (cqlfile == 0)
4525     {
4526         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4527     }
4528     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4529     {
4530         char buf[512];
4531         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4532                 cqlfile, strerror(errno));
4533         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4534     }
4535     else
4536     {
4537         WRBUF wrbuf_result = wrbuf_alloc();
4538         error = cql_transform(trans, cql_parser_result(parser),
4539                               cql2pqf_wrbuf_puts, wrbuf_result);
4540         if (error != 0) {
4541             char buf[512];
4542             const char *addinfo;
4543             error = cql_transform_error(trans, &addinfo);
4544             sprintf(buf, "%.200s (addinfo=%.200s)",
4545                     cql_strerror(error), addinfo);
4546             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4547         }
4548         else
4549         {
4550             result = xstrdup(wrbuf_cstr(wrbuf_result));
4551         }
4552         cql_transform_close(trans);
4553         wrbuf_destroy(wrbuf_result);
4554     }
4555     cql_parser_destroy(parser);
4556     return result;
4557 }
4558
4559 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4560 {
4561     if (c->mask)
4562     {
4563         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4564         /* timeout and this connection was waiting */
4565         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4566         do_close(c);
4567         ZOOM_connection_put_event(c, event);
4568     }
4569     return 0;
4570 }
4571
4572 ZOOM_API(int)
4573     ZOOM_connection_process(ZOOM_connection c)
4574 {
4575     ZOOM_Event event;
4576     if (!c)
4577         return 0;
4578
4579     event = ZOOM_connection_get_event(c);
4580     if (event)
4581     {
4582         ZOOM_Event_destroy(event);
4583         return 1;
4584     }
4585     ZOOM_connection_exec_task(c);
4586     event = ZOOM_connection_get_event(c);
4587     if (event)
4588     {
4589         ZOOM_Event_destroy(event);
4590         return 1;
4591     }
4592     return 0;
4593 }
4594
4595 ZOOM_API(int)
4596     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4597 {
4598     int i;
4599
4600     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4601
4602     for (i = 0; i<no; i++)
4603     {
4604         ZOOM_connection c = cs[i];
4605
4606         if (c && ZOOM_connection_process(c))
4607             return i+1;
4608     }
4609     return 0;
4610 }
4611
4612 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4613 {
4614     if (c->mask && mask)
4615         ZOOM_connection_do_io(c, mask);
4616     return 0;
4617 }
4618
4619 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
4620 {
4621     if (c->cs)
4622         return cs_fileno(c->cs);
4623     return -1;
4624 }
4625
4626 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
4627 {
4628     c->mask = mask;
4629     if (!c->cs)
4630         return -1;
4631     return 0;
4632 }
4633
4634 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
4635 {
4636     if (c->cs)
4637         return c->mask;
4638     return 0;
4639 }
4640
4641 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
4642 {
4643     return ZOOM_options_get_int(c->options, "timeout", 30);
4644 }
4645
4646 /*
4647  * Local variables:
4648  * c-basic-offset: 4
4649  * indent-tabs-mode: nil
4650  * End:
4651  * vim: shiftwidth=4 tabstop=8 expandtab
4652  */
4653