SimpleServer.xs

   1 /*
   2  * Copyright (c) 2000, Index Data.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation, in whole or in part, for any purpose, is hereby granted,
   6  * provided that:
   7  *
   8  * 1. This copyright and permission notice appear in all copies of the
   9  * software and its documentation. Notices of copyright or attribution
  10  * which appear at the beginning of any file must remain unchanged.
  11  *
  12  * 2. The name of Index Data or the individual authors may not be used to
  13  * endorse or promote products derived from this software without specific
  14  * prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  18  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  19  * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  20  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
  21  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
  22  * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  23  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24  * OF THIS SOFTWARE.
  25  */
  26
  27 /*$Log: SimpleServer.xs,v $
  28 /*Revision 1.10  2001-08-29 11:48:36  sondberg
  29 /*Added routines
  30 /*
  31 /*      Net::Z3950::SimpleServer::ScanSuccess
  32 /*      Net::Z3950::SimpleServer::ScanPartial
  33 /*
  34 /*and a bit of documentation.
  35 /*
  36 /*Revision 1.9  2001/08/24 14:00:20  sondberg
  37 /*Added support for scan.
  38 /*
  39 /*Revision 1.8  2001/05/21 11:07:02  sondberg
  40 /*Extended maximum numbers of GRS-1 elements. Should be done dynamically.
  41 /*
  42 /*Revision 1.7  2001/03/13 14:17:15  sondberg
  43 /*Added support for GRS-1.
  44 /**/
  45
  46
  47 #include "EXTERN.h"
  48 #include "perl.h"
  49 #include "XSUB.h"
  50 #include <yaz/backend.h>
  51 #include <yaz/log.h>
  52 #include <yaz/wrbuf.h>
  53 #include <stdio.h>
  54 #include <unistd.h>
  55 #include <stdlib.h>
  56 #include <ctype.h>
  57 #define GRS_MAX_FIELDS 500
  58 #ifdef ASN_COMPILED
  59 #include <yaz/ill.h>
  60 #endif
  61 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  62 #define sv_undef PL_sv_undef
  63 #endif
  64
  65 typedef struct {
  66         SV *handle;
  67
  68         SV *init_ref;
  69         SV *close_ref;
  70         SV *sort_ref;
  71         SV *search_ref;
  72         SV *fetch_ref;
  73         SV *present_ref;
  74         SV *esrequest_ref;
  75         SV *delete_ref;
  76         SV *scan_ref;
  77 } Zfront_handle;
  78
  79 SV *init_ref = NULL;
  80 SV *close_ref = NULL;
  81 SV *sort_ref = NULL;
  82 SV *search_ref = NULL;
  83 SV *fetch_ref = NULL;
  84 SV *present_ref = NULL;
  85 SV *esrequest_ref = NULL;
  86 SV *delete_ref = NULL;
  87 SV *scan_ref = NULL;
  88 int MAX_OID = 15;
  89
  90
  91 Z_GenericRecord *read_grs1(char *str, ODR o)
  92 {
  93         int type, ivalue;
  94         char line[512], *buf, *ptr, *original;
  95         char value[512];
  96         Z_GenericRecord *r = 0;
  97
  98         original = str;
  99         for (;;)
 100         {
 101                 Z_TaggedElement *t;
 102                 Z_ElementData *c;
 103
 104                 ptr = strchr(str, '\n');
 105                 if (!ptr) {
 106                         return r;
 107                 }
 108                 strncpy(line, str, ptr - str);
 109                 line[ptr - str] = 0;
 110                 buf = line;
 111                 str = ptr + 1;
 112                 while (*buf && isspace(*buf))
 113                         buf++;
 114                 if (*buf == '}') {
 115                         memmove(original, str, strlen(str));
 116                         return r;
 117                 }
 118                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 119                 {
 120                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 121                         return 0;
 122                 }
 123                 if (!type && *value == '0')
 124                         return r;
 125                 if (!(buf = strchr(buf, ')')))
 126                         return 0;
 127                 buf++;
 128                 while (*buf && isspace(*buf))
 129                         buf++;
 130                 if (!*buf)
 131                         return 0;
 132                 if (!r)
 133                 {
 134                         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 135                         r->elements = (Z_TaggedElement **)
 136                         odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 137                         r->num_elements = 0;
 138                 }
 139                 if (r->num_elements > GRS_MAX_FIELDS)
 140                 {
 141                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 142                         exit(0);
 143                 }
 144                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 145                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 146                 *t->tagType = type;
 147                 t->tagValue = (Z_StringOrNumeric *)
 148                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 149                 if ((ivalue = atoi(value)))
 150                 {
 151                         t->tagValue->which = Z_StringOrNumeric_numeric;
 152                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 153                         *t->tagValue->u.numeric = ivalue;
 154                 }
 155                 else
 156                 {
 157                         t->tagValue->which = Z_StringOrNumeric_string;
 158                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 159                         strcpy(t->tagValue->u.string, value);
 160                 }
 161                 t->tagOccurrence = 0;
 162                 t->metaData = 0;
 163                 t->appliedVariant = 0;
 164                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 165                 if (*buf == '{')
 166                 {
 167                         c->which = Z_ElementData_subtree;
 168                         c->u.subtree = read_grs1(str, o);
 169                 }
 170                 else
 171                 {
 172                         c->which = Z_ElementData_string;
 173 /*                      buf[strlen(buf)-1] = '\0';*/
 174                         buf[strlen(buf)] = '\0';
 175                         c->u.string = odr_strdup(o, buf);
 176                 }
 177                 r->num_elements++;
 178         }
 179 }
 180
 181
 182
 183
 184 static void oid2str(Odr_oid *o, WRBUF buf)
 185 {
 186     for (; *o >= 0; o++) {
 187         char ibuf[16];
 188         sprintf(ibuf, "%d", *o);
 189         wrbuf_puts(buf, ibuf);
 190         if (o[1] > 0)
 191             wrbuf_putc(buf, '.');
 192     }
 193 }
 194
 195
 196 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 197 {
 198     switch (s->which) {
 199         case Z_RPNStructure_simple: {
 200             Z_Operand *o = s->u.simple;
 201
 202             switch (o->which) {
 203                 case Z_Operand_APT: {
 204                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 205
 206                     if (at->attributes) {
 207                         int i;
 208                         char ibuf[16];
 209
 210                         for (i = 0; i < at->attributes->num_attributes; i++) {
 211                             wrbuf_puts(buf, "@attr ");
 212                             if (at->attributes->attributes[i]->attributeSet) {
 213                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 214                                 wrbuf_putc(buf, ' ');
 215                             }
 216                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 217                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 218                             wrbuf_puts(buf, ibuf);
 219                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 220                             wrbuf_puts(buf, ibuf);
 221                         }
 222                     }
 223                     switch (at->term->which) {
 224                         case Z_Term_general: {
 225                             wrbuf_putc(buf, '"');
 226                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 227                             wrbuf_puts(buf, "\" ");
 228                             break;
 229                         }
 230                         default: abort();
 231                     }
 232                     break;
 233                 }
 234                 default: abort();
 235             }
 236             break;
 237         }
 238         case Z_RPNStructure_complex: {
 239             Z_Complex *c = s->u.complex;
 240
 241             switch (c->roperator->which) {
 242                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 243                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 244                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 245                 case Z_Operator_prox: abort();
 246                 default: abort();
 247             }
 248             if (!rpn2pquery(c->s1, buf))
 249                 return 0;
 250             if (!rpn2pquery(c->s2, buf))
 251                 return 0;
 252             break;
 253         }
 254         default: abort();
 255     }
 256     return 1;
 257 }
 258
 259
 260 WRBUF zquery2pquery(Z_Query *q)
 261 {
 262     WRBUF buf = wrbuf_alloc();
 263
 264     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 265         return 0;
 266     if (q->u.type_1->attributeSetId) {
 267         /* Output attribute set ID */
 268         wrbuf_puts(buf, "@attrset ");
 269         oid2str(q->u.type_1->attributeSetId, buf);
 270         wrbuf_putc(buf, ' ');
 271     }
 272     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 273 }
 274
 275
 276 int bend_sort(void *handle, bend_sort_rr *rr)
 277 {
 278         HV *href;
 279         AV *aref;
 280         SV **temp;
 281         SV *err_code;
 282         SV *err_str;
 283         SV *status;
 284         STRLEN len;
 285         char *ptr;
 286         char *ODR_err_str;
 287         char **input_setnames;
 288         Zfront_handle *zhandle = (Zfront_handle *)handle;
 289         int i;
 290
 291         dSP;
 292         ENTER;
 293         SAVETMPS;
 294
 295         aref = newAV();
 296         input_setnames = rr->input_setnames;
 297         for (i = 0; i < rr->num_input_setnames; i++)
 298         {
 299                 av_push(aref, newSVpv(*input_setnames++, 0));
 300         }
 301         href = newHV();
 302         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 303         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 304         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 305         hv_store(href, "STATUS", 6, newSViv(0), 0);
 306
 307         PUSHMARK(sp);
 308
 309         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 310
 311         PUTBACK;
 312
 313         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 314
 315         SPAGAIN;
 316
 317         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 318         err_code = newSVsv(*temp);
 319
 320         temp = hv_fetch(href, "ERR_STR", 7, 1);
 321         err_str = newSVsv(*temp);
 322
 323         temp = hv_fetch(href, "STATUS", 6, 1);
 324         status = newSVsv(*temp);
 325
 326
 327
 328
 329         PUTBACK;
 330         FREETMPS;
 331         LEAVE;
 332
 333         hv_undef(href),
 334         av_undef(aref);
 335         rr->errcode = SvIV(err_code);
 336         rr->sort_status = SvIV(status);
 337         ptr = SvPV(err_str, len);
 338         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 339         strcpy(ODR_err_str, ptr);
 340         rr->errstring = ODR_err_str;
 341
 342         sv_free(err_code);
 343         sv_free(err_str);
 344         sv_free(status);
 345
 346         return 0;
 347 }
 348
 349
 350 int bend_search(void *handle, bend_search_rr *rr)
 351 {
 352         HV *href;
 353         AV *aref;
 354         SV **temp;
 355         SV *hits;
 356         SV *err_code;
 357         SV *err_str;
 358         char *ODR_errstr;
 359         STRLEN len;
 360         int i;
 361         char **basenames;
 362         int n;
 363         WRBUF query;
 364         char *ptr;
 365         SV *point;
 366         SV *ODR_point;
 367         Zfront_handle *zhandle = (Zfront_handle *)handle;
 368
 369         dSP;
 370         ENTER;
 371         SAVETMPS;
 372
 373         aref = newAV();
 374         basenames = rr->basenames;
 375         for (i = 0; i < rr->num_bases; i++)
 376         {
 377                 av_push(aref, newSVpv(*basenames++, 0));
 378         }
 379         href = newHV();
 380         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 381         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 382         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 383         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 384         hv_store(href, "HITS", 4, newSViv(0), 0);
 385         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 386         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 387         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 388         query = zquery2pquery(rr->query);
 389         if (query)
 390         {
 391                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 392         }
 393         else
 394         {
 395                 rr->errcode = 108;
 396         }
 397         PUSHMARK(sp);
 398
 399         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 400
 401         PUTBACK;
 402
 403         n = perl_call_sv(search_ref, G_SCALAR | G_DISCARD);
 404
 405         SPAGAIN;
 406
 407         temp = hv_fetch(href, "HITS", 4, 1);
 408         hits = newSVsv(*temp);
 409
 410         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 411         err_code = newSVsv(*temp);
 412
 413         temp = hv_fetch(href, "ERR_STR", 7, 1);
 414         err_str = newSVsv(*temp);
 415
 416         temp = hv_fetch(href, "HANDLE", 6, 1);
 417         point = newSVsv(*temp);
 418
 419         PUTBACK;
 420         FREETMPS;
 421         LEAVE;
 422
 423         hv_undef(href);
 424         av_undef(aref);
 425         rr->hits = SvIV(hits);
 426         rr->errcode = SvIV(err_code);
 427         ptr = SvPV(err_str, len);
 428         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 429         strcpy(ODR_errstr, ptr);
 430         rr->errstring = ODR_errstr;
 431 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 432         memcpy(ODR_point, point, sizeof(*point));
 433         zhandle->handle = ODR_point;*/
 434         zhandle->handle = point;
 435         handle = zhandle;
 436         sv_free(hits);
 437         sv_free(err_code);
 438         sv_free(err_str);
 439         sv_free( (SV*) aref);
 440         sv_free( (SV*) href);
 441         /*sv_free(point);*/
 442         wrbuf_free(query, 1);
 443         return 0;
 444 }
 445
 446
 447 WRBUF oid2dotted(int *oid)
 448 {
 449
 450         WRBUF buf = wrbuf_alloc();
 451         int dot = 0;
 452
 453         for (; *oid != -1 ; oid++)
 454         {
 455                 char ibuf[16];
 456                 if (dot)
 457                 {
 458                         wrbuf_putc(buf, '.');
 459                 }
 460                 else
 461                 {
 462                         dot = 1;
 463                 }
 464                 sprintf(ibuf, "%d", *oid);
 465                 wrbuf_puts(buf, ibuf);
 466         }
 467         return buf;
 468 }
 469
 470
 471 int dotted2oid(char *dotted, int *buffer)
 472 {
 473         int *oid;
 474         char ibuf[16];
 475         char *ptr;
 476         int n = 0;
 477
 478         ptr = ibuf;
 479         oid = buffer;
 480         while (*dotted)
 481         {
 482                 if (*dotted == '.')
 483                 {
 484                         n++;
 485                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 486                         {
 487                                 *oid = -1;
 488                                 return -1;
 489                         }
 490                         *ptr = 0;
 491                         sscanf(ibuf, "%d", oid++);
 492                         ptr = ibuf;
 493                         dotted++;
 494
 495                 }
 496                 else
 497                 {
 498                         *ptr++ = *dotted++;
 499                 }
 500         }
 501         if (n < MAX_OID)
 502         {
 503                 *ptr = 0;
 504                 sscanf(ibuf, "%d", oid++);
 505         }
 506         *oid = -1;
 507         return 0;
 508 }
 509
 510
 511 int bend_fetch(void *handle, bend_fetch_rr *rr)
 512 {
 513         HV *href;
 514         SV **temp;
 515         SV *basename;
 516         SV *record;
 517         SV *last;
 518         SV *err_code;
 519         SV *err_string;
 520         SV *sur_flag;
 521         SV *point;
 522         SV *rep_form;
 523         char *ptr;
 524         char *ODR_record;
 525         char *ODR_basename;
 526         char *ODR_errstr;
 527         int *ODR_oid_buf;
 528         oident *oid;
 529         WRBUF oid_dotted;
 530         Zfront_handle *zhandle = (Zfront_handle *)handle;
 531
 532         Z_RecordComposition *composition;
 533         Z_ElementSetNames *simple;
 534         STRLEN length;
 535
 536         dSP;
 537         ENTER;
 538         SAVETMPS;
 539
 540         rr->errcode = 0;
 541         href = newHV();
 542         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 543         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 544         oid_dotted = oid2dotted(rr->request_format_raw);
 545         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 546         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 547         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 548         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 549         hv_store(href, "LAST", 4, newSViv(0), 0);
 550         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 551         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 552         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 553         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 554         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 555         if (rr->comp)
 556         {
 557                 composition = rr->comp;
 558                 if (composition->which == Z_RecordComp_simple)
 559                 {
 560                         simple = composition->u.simple;
 561                         if (simple->which == Z_ElementSetNames_generic)
 562                         {
 563                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 564                         }
 565                         else
 566                         {
 567                                 rr->errcode = 26;
 568                         }
 569                 }
 570                 else
 571                 {
 572                         rr->errcode = 26;
 573                 }
 574         }
 575
 576         PUSHMARK(sp);
 577
 578         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 579
 580         PUTBACK;
 581
 582         perl_call_sv(fetch_ref, G_SCALAR | G_DISCARD);
 583
 584         SPAGAIN;
 585
 586         temp = hv_fetch(href, "BASENAME", 8, 1);
 587         basename = newSVsv(*temp);
 588
 589         temp = hv_fetch(href, "RECORD", 6, 1);
 590         record = newSVsv(*temp);
 591
 592         temp = hv_fetch(href, "LAST", 4, 1);
 593         last = newSVsv(*temp);
 594
 595         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 596         err_code = newSVsv(*temp);
 597
 598         temp = hv_fetch(href, "ERR_STR", 7, 1),
 599         err_string = newSVsv(*temp);
 600
 601         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 602         sur_flag = newSVsv(*temp);
 603
 604         temp = hv_fetch(href, "REP_FORM", 8, 1);
 605         rep_form = newSVsv(*temp);
 606
 607         temp = hv_fetch(href, "HANDLE", 6, 1);
 608         point = newSVsv(*temp);
 609
 610         PUTBACK;
 611         FREETMPS;
 612         LEAVE;
 613
 614         hv_undef(href);
 615
 616         ptr = SvPV(basename, length);
 617         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 618         strcpy(ODR_basename, ptr);
 619         rr->basename = ODR_basename;
 620
 621         ptr = SvPV(rep_form, length);
 622         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 623         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 624         {
 625                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 626         }
 627         rr->output_format_raw = ODR_oid_buf;
 628
 629         ptr = SvPV(record, length);
 630         oid = oid_getentbyoid(ODR_oid_buf);
 631         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 632         {
 633                 rr->record = (char *) read_grs1(ptr, rr->stream);
 634                 rr->len = -1;
 635         }
 636         else
 637         {
 638                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 639                 strcpy(ODR_record, ptr);
 640                 rr->record = ODR_record;
 641                 rr->len = length;
 642         }
 643         zhandle->handle = point;
 644         handle = zhandle;
 645         rr->last_in_set = SvIV(last);
 646
 647         if (!(rr->errcode))
 648         {
 649                 rr->errcode = SvIV(err_code);
 650                 ptr = SvPV(err_string, length);
 651                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 652                 strcpy(ODR_errstr, ptr);
 653                 rr->errstring = ODR_errstr;
 654         }
 655         rr->surrogate_flag = SvIV(sur_flag);
 656
 657         wrbuf_free(oid_dotted, 1);
 658         sv_free((SV*) href);
 659         sv_free(basename);
 660         sv_free(record);
 661         sv_free(last);
 662         sv_free(err_string);
 663         sv_free(err_code),
 664         sv_free(sur_flag);
 665         sv_free(rep_form);
 666
 667         return 0;
 668 }
 669
 670
 671 int bend_present(void *handle, bend_present_rr *rr)
 672 {
 673
 674         HV *href;
 675         SV **temp;
 676         SV *err_code;
 677         SV *err_string;
 678         SV *hits;
 679         SV *point;
 680         STRLEN len;
 681         Z_RecordComposition *composition;
 682         Z_ElementSetNames *simple;
 683         char *ODR_errstr;
 684         char *ptr;
 685         Zfront_handle *zhandle = (Zfront_handle *)handle;
 686
 687 /*      WRBUF oid_dotted; */
 688
 689         dSP;
 690         ENTER;
 691         SAVETMPS;
 692
 693         href = newHV();
 694         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 695         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 696         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 697         hv_store(href, "START", 5, newSViv(rr->start), 0);
 698         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 699         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 700         /*oid_dotted = oid2dotted(rr->request_format_raw);
 701         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 702         hv_store(href, "HITS", 4, newSViv(0), 0);
 703         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 704         if (rr->comp)
 705         {
 706                 composition = rr->comp;
 707                 if (composition->which == Z_RecordComp_simple)
 708                 {
 709                         simple = composition->u.simple;
 710                         if (simple->which == Z_ElementSetNames_generic)
 711                         {
 712                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 713                         }
 714                         else
 715                         {
 716                                 rr->errcode = 26;
 717                                 return 0;
 718                         }
 719                 }
 720                 else
 721                 {
 722                         rr->errcode = 26;
 723                         return 0;
 724                 }
 725         }
 726
 727         PUSHMARK(sp);
 728
 729         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 730
 731         PUTBACK;
 732
 733         perl_call_sv(present_ref, G_SCALAR | G_DISCARD);
 734
 735         SPAGAIN;
 736
 737         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 738         err_code = newSVsv(*temp);
 739
 740         temp = hv_fetch(href, "ERR_STR", 7, 1);
 741         err_string = newSVsv(*temp);
 742
 743         temp = hv_fetch(href, "HITS", 4, 1);
 744         hits = newSVsv(*temp);
 745
 746         temp = hv_fetch(href, "HANDLE", 6, 1);
 747         point = newSVsv(*temp);
 748
 749         PUTBACK;
 750         FREETMPS;
 751         LEAVE;
 752
 753         hv_undef(href);
 754         rr->errcode = SvIV(err_code);
 755         rr->hits = SvIV(hits);
 756
 757         ptr = SvPV(err_string, len);
 758         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 759         strcpy(ODR_errstr, ptr);
 760         rr->errstring = ODR_errstr;
 761 /*      wrbuf_free(oid_dotted, 1);*/
 762         zhandle->handle = point;
 763         handle = zhandle;
 764         sv_free(err_code);
 765         sv_free(err_string);
 766         sv_free(hits);
 767         sv_free( (SV*) href);
 768
 769         return 0;
 770 }
 771
 772
 773 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 774 {
 775         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 776         return 0;
 777 }
 778
 779
 780 int bend_delete(void *handle, bend_delete_rr *rr)
 781 {
 782         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 783         return 0;
 784 }
 785
 786
 787 int bend_scan(void *handle, bend_scan_rr *rr)
 788 {
 789         HV *href;
 790         AV *aref;
 791         AV *list;
 792         AV *entries;
 793         HV *scan_item;
 794         struct scan_entry *scan_list;
 795         struct scan_entry *buffer;
 796         int *step_size = rr->step_size;
 797         int i;
 798         char **basenames;
 799         SV **temp;
 800         SV *list_ref = sv_newmortal();
 801         SV *err_code = sv_newmortal();
 802         SV *err_str = sv_newmortal();
 803         SV *point = sv_newmortal();
 804         SV *status = sv_newmortal();
 805         SV *number = sv_newmortal();
 806         char *ptr;
 807         char *ODR_errstr;
 808         STRLEN len;
 809
 810         Zfront_handle *zhandle = (Zfront_handle *)handle;
 811
 812         dSP;
 813         ENTER;
 814         SAVETMPS;
 815         href = newHV();
 816         list = newAV();
 817         if (rr->term->term->which == Z_Term_general)
 818         {
 819                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, 0), 0);
 820         } else {
 821                 rr->errcode = 229;      /* Unsupported term type */
 822                 return 0;
 823         }
 824         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
 825         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
 826         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
 827         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 828         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 829         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 830         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
 831         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
 832         aref = newAV();
 833         basenames = rr->basenames;
 834         for (i = 0; i < rr->num_bases; i++)
 835         {
 836                 av_push(aref, newSVpv(*basenames++, 0));
 837         }
 838         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 839
 840         PUSHMARK(sp);
 841
 842         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 843
 844         PUTBACK;
 845
 846         perl_call_sv(scan_ref, G_SCALAR | G_DISCARD);
 847
 848         SPAGAIN;
 849
 850         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 851         err_code = newSVsv(*temp);
 852
 853         temp = hv_fetch(href, "ERR_STR", 7, 1);
 854         err_str = newSVsv(*temp);
 855
 856         temp = hv_fetch(href, "HANDLE", 6, 1);
 857         point = newSVsv(*temp);
 858
 859         temp = hv_fetch(href, "STATUS", 6, 1);
 860         status = newSVsv(*temp);
 861
 862         temp = hv_fetch(href, "NUMBER", 6, 1);
 863         number = newSVsv(*temp);
 864
 865         temp = hv_fetch(href, "ENTRIES", 7, 1);
 866         list_ref = newSVsv(*temp);
 867         entries = (AV *)SvRV(list_ref);
 868
 869         PUTBACK;
 870         FREETMPS;
 871         LEAVE;
 872
 873         ptr = SvPV(err_str, len);
 874         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 875         strcpy(ODR_errstr, ptr);
 876         rr->errstring = ODR_errstr;
 877         rr->errcode = SvIV(err_code);
 878         rr->num_entries = SvIV(number);
 879         rr->status = SvIV(status);
 880         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
 881         buffer = scan_list;
 882         for (i = 0; i < rr->num_entries; i++)
 883         {
 884                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
 885                 temp = hv_fetch(scan_item, "TERM", 4, 1);
 886                 ptr = SvPV(*temp, len);
 887                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
 888                 strcpy(buffer->term, ptr);
 889                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
 890                 buffer->occurrences = SvIV(*temp);
 891                 buffer++;
 892                 hv_undef(scan_item);
 893         }
 894         rr->entries = scan_list;
 895         zhandle->handle = point;
 896         handle = zhandle;
 897         /*sv_free(list_ref);*/
 898         sv_free(err_code);
 899         sv_free(err_str);
 900         sv_free(status);
 901         sv_free(number);
 902         /*sv_free(point);*/
 903         hv_undef(href);
 904         av_undef(aref);
 905         av_undef(list);
 906         av_undef(entries);
 907
 908         return 0;
 909 }
 910
 911
 912 bend_initresult *bend_init(bend_initrequest *q)
 913 {
 914         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
 915         HV *href;
 916         SV **temp;
 917         SV *name;
 918         SV *ver;
 919         SV *err_str;
 920         SV *status;
 921         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
 922         STRLEN len;
 923         int n;
 924         SV *handle;
 925         /*char *name_ptr;
 926         char *ver_ptr;*/
 927         char *ptr;
 928
 929         dSP;
 930         ENTER;
 931         SAVETMPS;
 932
 933         /*q->bend_sort = bend_sort;*/
 934         if (search_ref)
 935         {
 936                 q->bend_search = bend_search;
 937         }
 938         if (present_ref)
 939         {
 940                 q->bend_present = bend_present;
 941         }
 942         /*q->bend_esrequest = bend_esrequest;*/
 943         /*q->bend_delete = bend_delete;*/
 944         if (fetch_ref)
 945         {
 946                 q->bend_fetch = bend_fetch;
 947         }
 948         if (scan_ref)
 949         {
 950                 q->bend_scan = bend_scan;
 951         }
 952         href = newHV();
 953         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
 954         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
 955         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 956         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
 957         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
 958         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 959
 960         PUSHMARK(sp);
 961
 962         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 963
 964         PUTBACK;
 965
 966         if (init_ref != NULL)
 967         {
 968                 perl_call_sv(init_ref, G_SCALAR | G_DISCARD);
 969         }
 970
 971         SPAGAIN;
 972
 973         temp = hv_fetch(href, "IMP_NAME", 8, 1);
 974         name = newSVsv(*temp);
 975
 976         temp = hv_fetch(href, "IMP_VER", 7, 1);
 977         ver = newSVsv(*temp);
 978
 979         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 980         status = newSVsv(*temp);
 981
 982         temp = hv_fetch(href, "HANDLE", 6, 1);
 983         handle= newSVsv(*temp);
 984
 985         hv_undef(href);
 986         PUTBACK;
 987         FREETMPS;
 988         LEAVE;
 989         zhandle->handle = handle;
 990         r->errcode = SvIV(status);
 991         r->handle = zhandle;
 992         ptr = SvPV(name, len);
 993         q->implementation_name = (char *)xmalloc(len + 1);
 994         strcpy(q->implementation_name, ptr);
 995 /*      q->implementation_name = SvPV(name, len);*/
 996         ptr = SvPV(ver, len);
 997         q->implementation_version = (char *)xmalloc(len + 1);
 998         strcpy(q->implementation_version, ptr);
 999
1000         return r;
1001 }
1002
1003
1004 void bend_close(void *handle)
1005 {
1006         HV *href;
1007         Zfront_handle *zhandle = (Zfront_handle *)handle;
1008         SV **temp;
1009
1010         dSP;
1011         ENTER;
1012         SAVETMPS;
1013
1014         if (close_ref == NULL)
1015         {
1016                 return;
1017         }
1018
1019         href = newHV();
1020         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1021
1022         PUSHMARK(sp);
1023
1024         XPUSHs(sv_2mortal(newRV((SV *)href)));
1025
1026         PUTBACK;
1027
1028         perl_call_sv(close_ref, G_SCALAR | G_DISCARD);
1029
1030         SPAGAIN;
1031
1032         PUTBACK;
1033         FREETMPS;
1034         LEAVE;
1035
1036         xfree(handle);
1037
1038         return;
1039 }
1040
1041
1042 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1043
1044 void
1045 set_init_handler(arg)
1046                 SV *arg
1047         CODE:
1048                 init_ref = newSVsv(arg);
1049
1050
1051 void
1052 set_close_handler(arg)
1053                 SV *arg
1054         CODE:
1055                 close_ref = newSVsv(arg);
1056
1057
1058 void
1059 set_sort_handler(arg)
1060                 SV *arg
1061         CODE:
1062                 sort_ref = newSVsv(arg);
1063
1064 void
1065 set_search_handler(arg)
1066                 SV *arg
1067         CODE:
1068                 search_ref = newSVsv(arg);
1069
1070
1071 void
1072 set_fetch_handler(arg)
1073                 SV *arg
1074         CODE:
1075                 fetch_ref = newSVsv(arg);
1076
1077
1078 void
1079 set_present_handler(arg)
1080                 SV *arg
1081         CODE:
1082                 present_ref = newSVsv(arg);
1083
1084
1085 void
1086 set_esrequest_handler(arg)
1087                 SV *arg
1088         CODE:
1089                 esrequest_ref = newSVsv(arg);
1090
1091
1092 void
1093 set_delete_handler(arg)
1094                 SV *arg
1095         CODE:
1096                 delete_ref = newSVsv(arg);
1097
1098
1099 void
1100 set_scan_handler(arg)
1101                 SV *arg
1102         CODE:
1103                 scan_ref = newSVsv(arg);
1104
1105
1106 int
1107 start_server(...)
1108         PREINIT:
1109                 char **argv;
1110                 char **argv_buf;
1111                 char *ptr;
1112                 int i;
1113                 STRLEN len;
1114         CODE:
1115                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1116                 argv = argv_buf;
1117                 for (i = 0; i < items; i++)
1118                 {
1119                         ptr = SvPV(ST(i), len);
1120                         *argv_buf = (char *)xmalloc(len + 1);
1121                         strcpy(*argv_buf++, ptr);
1122                 }
1123                 *argv_buf = NULL;
1124
1125                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1126         OUTPUT:
1127                 RETVAL
1128
1129
1130 int
1131 ScanSuccess()
1132         CODE:
1133                 RETVAL = BEND_SCAN_SUCCESS;
1134         OUTPUT:
1135                 RETVAL
1136
1137 int
1138 ScanPartial()
1139         CODE:
1140                 RETVAL = BEND_SCAN_PARTIAL;
1141         OUTPUT:
1142                 RETVAL
1143
1144