client/client.c

   1 /*
   2  * Copyright (c) 1995, Index Data.
   3  * See the file LICENSE for details.
   4  * Sebastian Hammer, Adam Dickmeiss
   5  *
   6  * $Log: client.c,v $
   7  * Revision 1.10  1995-06-06 14:56:58  quinn
   8  * Better diagnostics.
   9  *
  10  * Revision 1.9  1995/06/06  08:15:19  quinn
  11  * Cosmetic.
  12  *
  13  * Revision 1.8  1995/06/05  10:52:22  quinn
  14  * Added SCAN.
  15  *
  16  * Revision 1.7  1995/06/02  09:50:09  quinn
  17  * Smallish.
  18  *
  19  * Revision 1.6  1995/05/31  08:29:21  quinn
  20  * Nothing significant.
  21  *
  22  * Revision 1.5  1995/05/29  08:10:47  quinn
  23  * Moved oid.c to util.
  24  *
  25  * Revision 1.4  1995/05/22  15:30:13  adam
  26  * Client uses prefix query notation.
  27  *
  28  * Revision 1.3  1995/05/22  15:06:53  quinn
  29  * *** empty log message ***
  30  *
  31  * Revision 1.2  1995/05/22  14:56:40  quinn
  32  * *** empty log message ***
  33  *
  34  * Revision 1.1  1995/05/22  11:30:31  quinn
  35  * Added prettier client.
  36  *
  37  *
  38  */
  39
  40 /*
  41  * This is the obligatory little toy client, whose primary purpose is
  42  * to illustrate the use of the YAZ service-level API.
  43  */
  44
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <sys/time.h>
  48 #include <assert.h>
  49 #ifdef _AIX
  50 #include <sys/select.h>
  51 #endif
  52
  53 #include <comstack.h>
  54 #include <tcpip.h>
  55 #ifdef USE_XTIMOSI
  56 #include <xmosi.h>
  57 #endif
  58
  59 #include <proto.h>
  60
  61 #include <marcdisp.h>
  62
  63 #ifdef RPN_QUERY
  64 #ifdef PREFIX_QUERY
  65 #include <pquery.h>
  66 #else
  67 #include <yaz-ccl.h>
  68 #endif
  69 #endif
  70
  71 #include "../version.h"
  72
  73 #define C_PROMPT "Z> "
  74
  75 static ODR out, in, print;              /* encoding and decoding streams */
  76 static COMSTACK conn = 0;               /* our z-association */
  77 static Z_IdAuthentication *auth = 0;    /* our current auth definition */
  78 static char database[512] = "Default";  /* Database name */
  79 static int setnumber = 0;               /* current result set number */
  80 static int smallSetUpperBound = 0;
  81 static int largeSetLowerBound = 1;
  82 static int mediumSetPresentNumber = 0;
  83 static int setno = 1;                   /* current set offset */
  84 static int protocol = PROTO_Z3950;      /* current app protocol */
  85 static ODR_MEM session_mem;                /* memory handle for init-response */
  86 static Z_InitResponse *session = 0;        /* session parameters */
  87 static char last_scan[512] = "0";
  88 static char last_cmd[100] = "?";
  89 #ifdef RPN_QUERY
  90 #ifndef PREFIX_QUERY
  91 static CCL_bibset bibset;               /* CCL bibset handle */
  92 #endif
  93 #endif
  94
  95 static void send_apdu(Z_APDU *a)
  96 {
  97     char *buf;
  98     int len;
  99
 100     if (!z_APDU(out, &a, 0))
 101     {
 102         odr_perror(out, "Encoding APDU");
 103         exit(1);
 104     }
 105     buf = odr_getbuf(out, &len, 0);
 106     odr_reset(out); /* release the APDU */
 107     if (cs_put(conn, buf, len) < 0)
 108     {
 109         fprintf(stderr, "cs_put: %s", cs_errlist[cs_errno(conn)]);
 110         exit(1);
 111     }
 112 }
 113
 114 /* INIT SERVICE ------------------------------- */
 115
 116 static void send_initRequest()
 117 {
 118     Z_APDU *apdu = zget_APDU(out, Z_APDU_initRequest);
 119     Z_InitRequest *req = apdu->u.initRequest;
 120
 121     ODR_MASK_SET(req->options, Z_Options_search);
 122     ODR_MASK_SET(req->options, Z_Options_present);
 123     ODR_MASK_SET(req->options, Z_Options_namedResultSets);
 124     ODR_MASK_SET(req->options, Z_Options_triggerResourceCtrl);
 125     ODR_MASK_SET(req->options, Z_Options_scan);
 126
 127     ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_1);
 128     ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_2);
 129
 130     req->idAuthentication = auth;
 131
 132     send_apdu(apdu);
 133     printf("Sent initrequest.\n");
 134 }
 135
 136 static int process_initResponse(Z_InitResponse *res)
 137 {
 138     /* save session parameters for later use */
 139     session_mem = odr_extract_mem(in);
 140     session = res;
 141
 142     if (!*res->result)
 143         printf("Connection rejected by target.\n");
 144     else
 145         printf("Connection accepted by target.\n");
 146     if (res->implementationId)
 147         printf("ID     : %s\n", res->implementationId);
 148     if (res->implementationName)
 149         printf("Name   : %s\n", res->implementationName);
 150     if (res->implementationVersion)
 151         printf("Version: %s\n", res->implementationVersion);
 152     if (res->userInformationField)
 153     {
 154         printf("UserInformationfield:\n");
 155         if (!odr_external(print, (Odr_external**)&res-> userInformationField,
 156             0))
 157         {
 158             odr_perror(print, "Printing userinfo\n");
 159             odr_reset(print);
 160         }
 161         if (res->userInformationField->which == ODR_EXTERNAL_octet)
 162         {
 163             printf("Guessing visiblestring:\n");
 164             printf("'%s'\n", res->userInformationField->u. octet_aligned->buf);
 165         }
 166     }
 167     return 0;
 168 }
 169
 170 int cmd_open(char *arg)
 171 {
 172     void *add;
 173     char type[100], addr[100];
 174     CS_TYPE t;
 175
 176     if (conn)
 177     {
 178         printf("Already connected.\n");
 179         return 0;
 180     }
 181     if (!*arg || sscanf(arg, "%[^:]:%s", type, addr) < 2)
 182     {
 183         fprintf(stderr, "Usage: open (osi|tcp) ':' [tsel '/']host[':'port]\n");
 184         return 0;
 185     }
 186 #ifdef USE_XTIMOSI
 187     if (!strcmp(type, "osi"))
 188     {
 189         if (!(add = mosi_strtoaddr(addr)))
 190         {
 191             perror(arg);
 192             return 0;
 193         }
 194         t = mosi_type;
 195         protocol = PROTO_SR;
 196     }
 197     else
 198 #endif
 199     if (!strcmp(type, "tcp"))
 200     {
 201         if (!(add = tcpip_strtoaddr(addr)))
 202         {
 203             perror(arg);
 204             return 0;
 205         }
 206         t = tcpip_type;
 207         protocol = PROTO_Z3950;
 208     }
 209     else
 210     {
 211         fprintf(stderr, "Bad type: %s\n", type);
 212         return 0;
 213     }
 214     if (!(conn = cs_create(t, 1, protocol)))
 215     {
 216         perror("cs_create");
 217         return 0;
 218     }
 219     printf("Connecting...");
 220     fflush(stdout);
 221     if (cs_connect(conn, add) < 0)
 222     {
 223         perror("connect");
 224         cs_close(conn);
 225         conn = 0;
 226         return 0;
 227     }
 228     printf("Ok.\n");
 229     send_initRequest();
 230     return 2;
 231 }
 232
 233 int cmd_authentication(char *arg)
 234 {
 235     static Z_IdAuthentication au;
 236     static char open[256];
 237
 238     if (!*arg)
 239     {
 240         printf("Auth field set to null\n");
 241         auth = 0;
 242         return 1;
 243     }
 244     auth = &au;
 245     au.which = Z_IdAuthentication_open;
 246     au.u.open = open;
 247     strcpy(open, arg);
 248     return 1;
 249 }
 250
 251 /* SEARCH SERVICE ------------------------------ */
 252
 253 void display_record(Z_DatabaseRecord *p)
 254 {
 255     Odr_external *r = (Odr_external*) p;
 256
 257     if (r->direct_reference)
 258     {
 259         oident *ent = oid_getentbyoid(r->direct_reference);
 260
 261         printf("Record type: ");
 262         if (ent)
 263             printf("%s\n", ent->desc);
 264         else if (!odr_oid(print, &r->direct_reference, 0))
 265         {
 266             odr_perror(print, "print oid");
 267             odr_reset(print);
 268         }
 269     }
 270 #if 1
 271     if (r->which == ODR_EXTERNAL_octet && p->u.octet_aligned->len)
 272     {
 273 #if 1
 274         marc_display ((char*)p->u.octet_aligned->buf, stdout);
 275 #else
 276         FILE *ofi = fopen("dump", "a");
 277         assert(ofi);
 278         fwrite(p->u.octet_aligned->buf, 1, p->u.octet_aligned->len, ofi);
 279         fclose(ofi);
 280         printf("dumped record\n");
 281 #endif
 282     }
 283     else
 284     {
 285         printf("Unknown record representation.\n");
 286         if (!odr_external(print, &r, 0))
 287         {
 288             odr_perror(print, "Printing external");
 289             odr_reset(print);
 290         }
 291     }
 292 #endif
 293 }
 294
 295 static void display_diagrec(Z_DiagRec *p)
 296 {
 297     oident *ent;
 298
 299     printf("Diagnostic message from database.\n");
 300     if (!(ent = oid_getentbyoid(p->diagnosticSetId)) ||
 301         ent->class != CLASS_DIAGSET || ent->value != VAL_BIB1)
 302         printf("Missing or unknown diagset\n");
 303     printf("Error condition: %d", *p->condition);
 304     printf(" -- %s\n", p->addinfo ? p->addinfo : "");
 305 }
 306
 307 static void display_nameplusrecord(Z_NamePlusRecord *p)
 308 {
 309     if (p->databaseName)
 310         printf("[%s]", p->databaseName);
 311     if (p->which == Z_NamePlusRecord_surrogateDiagnostic)
 312         display_diagrec(p->u.surrogateDiagnostic);
 313     else
 314         display_record(p->u.databaseRecord);
 315 }
 316
 317 static void display_records(Z_Records *p)
 318 {
 319     int i;
 320
 321     if (p->which == Z_Records_NSD)
 322         display_diagrec(p->u.nonSurrogateDiagnostic);
 323     else
 324     {
 325         printf("Records: %d\n", p->u.databaseOrSurDiagnostics->num_records);
 326         for (i = 0; i < p->u.databaseOrSurDiagnostics->num_records; i++)
 327             display_nameplusrecord(p->u.databaseOrSurDiagnostics->records[i]);
 328     }
 329 }
 330
 331 static int send_searchRequest(char *arg)
 332 {
 333     Z_APDU *apdu = zget_APDU(out, Z_APDU_searchRequest);
 334     Z_SearchRequest *req = apdu->u.searchRequest;
 335     char *databaseNames = database;
 336     Z_Query query;
 337 #ifdef RPN_QUERY
 338 #ifndef PREFIX_QUERY
 339     struct ccl_rpn_node *rpn;
 340     int error, pos;
 341 #endif
 342 #endif
 343     char setstring[100];
 344 #ifdef RPN_QUERY
 345     Z_RPNQuery *RPNquery;
 346     oident bib1;
 347 #else
 348     Odr_oct ccl_query;
 349 #endif
 350
 351 #ifdef RPN_QUERY
 352 #ifndef PREFIX_QUERY
 353     rpn = ccl_find_str(bibset, arg, &error, &pos);
 354     if (error)
 355     {
 356         printf("CCL ERROR: %s\n", ccl_err_msg(error));
 357         return 0;
 358     }
 359 #endif
 360 #endif
 361
 362     if (!strcmp(arg, "@big")) /* strictly for troublemaking */
 363     {
 364         static unsigned char big[2100];
 365         static Odr_oct bigo;
 366
 367         /* send a very big referenceid to test transport stack etc. */
 368         memset(big, 'A', 2100);
 369         bigo.len = bigo.size = 2100;
 370         bigo.buf = big;
 371         req->referenceId = &bigo;
 372     }
 373
 374     if (setnumber >= 0)
 375     {
 376         sprintf(setstring, "%d", ++setnumber);
 377         req->resultSetName = setstring;
 378     }
 379     *req->smallSetUpperBound = smallSetUpperBound;
 380     *req->largeSetLowerBound = largeSetLowerBound;
 381     *req->mediumSetPresentNumber = mediumSetPresentNumber;
 382     req->num_databaseNames = 1;
 383     req->databaseNames = &databaseNames;
 384
 385     req->query = &query;
 386
 387 #ifdef RPN_QUERY
 388     query.which = Z_Query_type_1;
 389
 390 #ifndef PREFIX_QUERY
 391     assert((RPNquery = ccl_rpn_query(rpn)));
 392 #else
 393     RPNquery = p_query_rpn (out, arg);
 394     if (!RPNquery)
 395     {
 396         printf("Prefix query error\n");
 397         return 0;
 398     }
 399 #endif
 400     bib1.proto = protocol;
 401     bib1.class = CLASS_ATTSET;
 402     bib1.value = VAL_BIB1;
 403     RPNquery->attributeSetId = oid_getoidbyent(&bib1);
 404     query.u.type_1 = RPNquery;
 405 #else
 406     query.which = Z_Query_type_2;
 407     query.u.type_2 = &ccl_query;
 408     ccl_query.buf = (unsigned char*) arg;
 409     ccl_query.len = strlen(arg);
 410 #endif
 411
 412     send_apdu(apdu);
 413     setno = 1;
 414     printf("Sent searchRequest.\n");
 415     return 2;
 416 }
 417
 418 static int process_searchResponse(Z_SearchResponse *res)
 419 {
 420     if (*res->searchStatus)
 421         printf("Search was a success.\n");
 422     else
 423         printf("Search was a bloomin' failure.\n");
 424     printf("Number of hits: %d, setno %d\n",
 425         *res->resultCount, setnumber);
 426     printf("records returned: %d\n",
 427         *res->numberOfRecordsReturned);
 428     setno += *res->numberOfRecordsReturned;
 429     if (res->records)
 430         display_records(res->records);
 431     return 0;
 432 }
 433
 434 static int cmd_find(char *arg)
 435 {
 436     if (!*arg)
 437     {
 438         printf("Find what?\n");
 439         return 0;
 440     }
 441     if (!conn)
 442     {
 443         printf("Not connected yet\n");
 444         return 0;
 445     }
 446     if (!send_searchRequest(arg))
 447         return 0;
 448     return 2;
 449 }
 450
 451 static int cmd_ssub(char *arg)
 452 {
 453     if (!(smallSetUpperBound = atoi(arg)))
 454         return 0;
 455     return 1;
 456 }
 457
 458 static int cmd_lslb(char *arg)
 459 {
 460     if (!(largeSetLowerBound = atoi(arg)))
 461         return 0;
 462     return 1;
 463 }
 464
 465 static int cmd_mspn(char *arg)
 466 {
 467     if (!(mediumSetPresentNumber = atoi(arg)))
 468         return 0;
 469     return 1;
 470 }
 471
 472 static int cmd_status(char *arg)
 473 {
 474     printf("smallSetUpperBound: %d\n", smallSetUpperBound);
 475     printf("largeSetLowerBound: %d\n", largeSetLowerBound);
 476     printf("mediumSetPresentNumber: %d\n", mediumSetPresentNumber);
 477     return 1;
 478 }
 479
 480 static int cmd_base(char *arg)
 481 {
 482     if (!*arg)
 483     {
 484         printf("Usage: base <database>\n");
 485         return 0;
 486     }
 487     strcpy(database, arg);
 488     return 1;
 489 }
 490
 491 static int cmd_setnames(char *arg)
 492 {
 493     if (setnumber < 0)
 494     {
 495         printf("Set numbering enabled.\n");
 496         setnumber = 0;
 497     }
 498     else
 499     {
 500         printf("Set numbering disabled.\n");
 501         setnumber = -1;
 502     }
 503     return 1;
 504 }
 505
 506 /* PRESENT SERVICE ----------------------------- */
 507
 508 static int send_presentRequest(char *arg)
 509 {
 510     Z_APDU *apdu = zget_APDU(out, Z_APDU_presentRequest);
 511     Z_PresentRequest *req = apdu->u.presentRequest;
 512     int nos = 1;
 513     char *p;
 514     char setstring[100];
 515
 516     if ((p = strchr(arg, '+')))
 517     {
 518         nos = atoi(p + 1);
 519         *p = 0;
 520     }
 521     if (*arg)
 522         setno = atoi(arg);
 523
 524     if (setnumber >= 0)
 525     {
 526         sprintf(setstring, "%d", setnumber);
 527         req->resultSetId = setstring;
 528     }
 529     req->resultSetStartPoint = &setno;
 530     req->numberOfRecordsRequested = &nos;
 531     send_apdu(apdu);
 532     printf("Sent presentRequest (%d+%d).\n", setno, nos);
 533     return 2;
 534 }
 535
 536 static int cmd_show(char *arg)
 537 {
 538     if (!send_presentRequest(arg))
 539         return 0;
 540     return 2;
 541 }
 542
 543 int cmd_quit(char *arg)
 544 {
 545     printf("See you later, alligator.\n");
 546     exit(0);
 547 }
 548
 549 int cmd_cancel(char *arg)
 550 {
 551     Z_APDU *apdu = zget_APDU(out, Z_APDU_triggerResourceControlRequest);
 552     Z_TriggerResourceControlRequest *req =
 553         apdu->u.triggerResourceControlRequest;
 554     bool_t false = 0;
 555
 556     if (!session)
 557     {
 558         printf("Session not initialized yet\n");
 559         return 0;
 560     }
 561     if (!ODR_MASK_GET(session->options, Z_Options_triggerResourceCtrl))
 562     {
 563         printf("Target doesn't support cancel (trigger resource ctrl)\n");
 564         return 0;
 565     }
 566     *req->requestedAction = Z_TriggerResourceCtrl_cancel;
 567     req->resultSetWanted = &false;
 568
 569     send_apdu(apdu);
 570     printf("Sent cancel request\n");
 571     return 2;
 572 }
 573
 574 int send_scanrequest(char *string, int pp, int num)
 575 {
 576     Z_APDU *apdu = zget_APDU(out, Z_APDU_scanRequest);
 577     Z_ScanRequest *req = apdu->u.scanRequest;
 578     char *db = database;
 579     oident attset;
 580
 581     req->num_databaseNames = 1;
 582     req->databaseNames = &db;
 583     attset.proto = protocol;
 584     attset.class = CLASS_ATTSET;
 585     attset.value = VAL_BIB1;
 586     req->attributeSet = oid_getoidbyent(&attset);
 587     req->termListAndStartPoint = p_query_scan(out, string);
 588     req->numberOfTermsRequested = &num;
 589     req->preferredPositionInResponse = &pp;
 590     send_apdu(apdu);
 591     return 2;
 592 }
 593
 594 void display_term(Z_TermInfo *t)
 595 {
 596     if (t->term->which == Z_Term_general)
 597     {
 598         printf("%.*s (%d)\n", t->term->u.general->len, t->term->u.general->buf,
 599             t->globalOccurrences ? *t->globalOccurrences : -1);
 600         sprintf(last_scan, "%.*s", t->term->u.general->len,
 601             t->term->u.general->buf);
 602     }
 603     else
 604         printf("Term type not general.\n");
 605 }
 606
 607 void process_scanResponse(Z_ScanResponse *res)
 608 {
 609     int i;
 610
 611     printf("SCAN: %d entries, position=%d\n", *res->numberOfEntriesReturned,
 612         *res->positionOfTerm);
 613     if (*res->scanStatus != Z_Scan_success)
 614         printf("Scan returned code %d\n", *res->scanStatus);
 615     if (!res->entries)
 616         return;
 617     if (res->entries->which == Z_ListEntries_entries)
 618     {
 619         Z_Entries *ent = res->entries->u.entries;
 620
 621         for (i = 0; i < ent->num_entries; i++)
 622             if (ent->entries[i]->which == Z_Entry_termInfo)
 623             {
 624                 printf("%c ", i + 1 == *res->positionOfTerm ? '*' : ' ');
 625                 display_term(ent->entries[i]->u.termInfo);
 626             }
 627             else
 628                 display_diagrec(ent->entries[i]->u.surrogateDiagnostic);
 629     }
 630     else
 631         display_diagrec(res->entries->u.nonSurrogateDiagnostics->diagRecs[0]);
 632 }
 633
 634 int cmd_scan(char *arg)
 635 {
 636     if (!session)
 637     {
 638         printf("Session not initialized yet\n");
 639         return 0;
 640     }
 641     if (!ODR_MASK_GET(session->options, Z_Options_scan))
 642     {
 643         printf("Target doesn't support scan\n");
 644         return 0;
 645     }
 646     if (*arg)
 647     {
 648         if (send_scanrequest(arg, 5, 19) < 0)
 649             return 0;
 650     }
 651     else
 652         if (send_scanrequest(last_scan, 1, 19) < 0)
 653             return 0;
 654     return 2;
 655 }
 656
 657 static void initialize(void)
 658 {
 659 #ifdef RPN_QUERY
 660 #ifndef PREFIX_QUERY
 661     FILE *inf;
 662 #endif
 663 #endif
 664
 665     if (!(out = odr_createmem(ODR_ENCODE)) ||
 666         !(in = odr_createmem(ODR_DECODE)) ||
 667         !(print = odr_createmem(ODR_PRINT)))
 668     {
 669         fprintf(stderr, "failed to allocate ODR streams\n");
 670         exit(1);
 671     }
 672     setvbuf(stdout, 0, _IONBF, 0);
 673
 674 #ifdef RPN_QUERY
 675 #ifndef PREFIX_QUERY
 676     bibset = ccl_qual_mk ();
 677     inf = fopen ("default.bib", "r");
 678     if (inf)
 679     {
 680         ccl_qual_file (bibset, inf);
 681         fclose (inf);
 682     }
 683 #endif
 684 #endif
 685 }
 686
 687 static int client(void)
 688 {
 689     static struct {
 690         char *cmd;
 691         int (*fun)(char *arg);
 692         char *ad;
 693     } cmd[] = {
 694         {"open", cmd_open, "('tcp'|'osi')':'[<TSEL>'/']<HOST>[':'<PORT>]"},
 695         {"quit", cmd_quit, ""},
 696         {"find", cmd_find, "<CCL-QUERY>"},
 697         {"base", cmd_base, "<BASE-NAME>"},
 698         {"show", cmd_show, "<REC#>['+'<#RECS>]"},
 699         {"scan", cmd_scan, "<TERM>"},
 700         {"authentication", cmd_authentication, "<ACCTSTRING>"},
 701         {"lslb", cmd_lslb, "<largeSetLowerBound>"},
 702         {"ssub", cmd_ssub, "<smallSetUpperBound>"},
 703         {"mspn", cmd_mspn, "<mediumSetPresentNumber>"},
 704         {"status", cmd_status, ""},
 705         {"setnames", cmd_setnames, ""},
 706         {"cancel", cmd_cancel, ""},
 707         {0,0}
 708     };
 709     char *netbuffer= 0;
 710     int netbufferlen = 0;
 711     int i;
 712     Z_APDU *apdu;
 713
 714     while (1)
 715     {
 716         int res;
 717         fd_set input;
 718         char line[1024], word[1024], arg[1024];
 719
 720         FD_ZERO(&input);
 721         FD_SET(0, &input);
 722         if (conn)
 723             FD_SET(cs_fileno(conn), &input);
 724         if ((res = select(20, &input, 0, 0, 0)) < 0)
 725         {
 726             perror("select");
 727             exit(1);
 728         }
 729         if (!res)
 730             continue;
 731         if (FD_ISSET(0, &input))
 732         {
 733             /* quick & dirty way to get a command line. */
 734             if (!gets(line))
 735                 break;
 736             if ((res = sscanf(line, "%s %[^;]", word, arg)) <= 0)
 737             {
 738                 strcpy(word, last_cmd);
 739                 *arg = '\0';
 740             }
 741             else if (res == 1)
 742                 *arg = 0;
 743             strcpy(last_cmd, word);
 744             for (i = 0; cmd[i].cmd; i++)
 745                 if (!strncmp(cmd[i].cmd, word, strlen(word)))
 746                 {
 747                     res = (*cmd[i].fun)(arg);
 748                     break;
 749                 }
 750             if (!cmd[i].cmd) /* dump our help-screen */
 751             {
 752                 printf("Unknown command: %s.\n", word);
 753                 printf("Currently recognized commands:\n");
 754                 for (i = 0; cmd[i].cmd; i++)
 755                     printf("   %s %s\n", cmd[i].cmd, cmd[i].ad);
 756                 res = 1;
 757             }
 758             if (res < 2)
 759                 printf(C_PROMPT);
 760         }
 761         if (conn && FD_ISSET(cs_fileno(conn), &input))
 762         {
 763             do
 764             {
 765                 if ((res = cs_get(conn, &netbuffer, &netbufferlen)) < 0)
 766                 {
 767                     perror("cs_get");
 768                     exit(1);
 769                 }
 770                 if (!res)
 771                 {
 772                     printf("Target closed connection.\n");
 773                     exit(1);
 774                 }
 775                 odr_reset(in); /* release APDU from last round */
 776                 odr_setbuf(in, netbuffer, res, 0);
 777                 if (!z_APDU(in, &apdu, 0))
 778                 {
 779                     odr_perror(in, "Decoding incoming APDU");
 780                     exit(1);
 781                 }
 782 #if 0
 783                 if (!z_APDU(print, &apdu, 0))
 784                 {
 785                     odr_perror(print, "Failed to print incoming APDU");
 786                     odr_reset(print);
 787                     continue;
 788                 }
 789 #endif
 790                 switch(apdu->which)
 791                 {
 792                     case Z_APDU_initResponse:
 793                         process_initResponse(apdu->u.initResponse);
 794                         break;
 795                     case Z_APDU_searchResponse:
 796                         process_searchResponse(apdu->u.searchResponse);
 797                         break;
 798                     case Z_APDU_scanResponse:
 799                         process_scanResponse(apdu->u.scanResponse);
 800                         break;
 801                     case Z_APDU_presentResponse:
 802                         printf("Received presentResponse.\n");
 803                         setno +=
 804                             *apdu->u.presentResponse->numberOfRecordsReturned;
 805                         if (apdu->u.presentResponse->records)
 806                             display_records(apdu->u.presentResponse->records);
 807                         else
 808                             printf("No records.\n");
 809                         break;
 810                     default:
 811                         printf("Received unknown APDU type (%d).\n",
 812                             apdu->which);
 813                         exit(1);
 814                 }
 815                 printf("Z> ");
 816                 fflush(stdout);
 817             }
 818             while (cs_more(conn));
 819         }
 820     }
 821     return 0;
 822 }
 823
 824 int main(int argc, char **argv)
 825 {
 826     initialize();
 827     if (argc > 1)
 828         cmd_open(argv[1]);
 829     else
 830         printf(C_PROMPT);
 831     return client();
 832 }