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 1.12  2001-08-30 14:02:10  sondberg
  29 /*Small changes.
  30 /*
  31 /*Revision 1.11  2001/08/30 13:15:11  sondberg
  32 /*Corrected a memory leak, one more to go.
  33 /*
  34 /*Revision 1.10  2001/08/29 11:48:36  sondberg
  35 /*Added routines
  36 /*
  37 /*      Net::Z3950::SimpleServer::ScanSuccess
  38 /*      Net::Z3950::SimpleServer::ScanPartial
  39 /*
  40 /*and a bit of documentation.
  41 /*
  42 /*Revision 1.9  2001/08/24 14:00:20  sondberg
  43 /*Added support for scan.
  44 /*
  45 /*Revision 1.8  2001/05/21 11:07:02  sondberg
  46 /*Extended maximum numbers of GRS-1 elements. Should be done dynamically.
  47 /*
  48 /*Revision 1.7  2001/03/13 14:17:15  sondberg
  49 /*Added support for GRS-1.
  50 /**/
  51
  52
  53 #include "EXTERN.h"
  54 #include "perl.h"
  55 #include "XSUB.h"
  56 #include <yaz/backend.h>
  57 #include <yaz/log.h>
  58 #include <yaz/wrbuf.h>
  59 #include <stdio.h>
  60 #include <unistd.h>
  61 #include <stdlib.h>
  62 #include <ctype.h>
  63 #define GRS_MAX_FIELDS 500
  64 #ifdef ASN_COMPILED
  65 #include <yaz/ill.h>
  66 #endif
  67 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  68 #define sv_undef PL_sv_undef
  69 #endif
  70
  71 typedef struct {
  72         SV *handle;
  73
  74         SV *init_ref;
  75         SV *close_ref;
  76         SV *sort_ref;
  77         SV *search_ref;
  78         SV *fetch_ref;
  79         SV *present_ref;
  80         SV *esrequest_ref;
  81         SV *delete_ref;
  82         SV *scan_ref;
  83 } Zfront_handle;
  84
  85 SV *init_ref = NULL;
  86 SV *close_ref = NULL;
  87 SV *sort_ref = NULL;
  88 SV *search_ref = NULL;
  89 SV *fetch_ref = NULL;
  90 SV *present_ref = NULL;
  91 SV *esrequest_ref = NULL;
  92 SV *delete_ref = NULL;
  93 SV *scan_ref = NULL;
  94 int MAX_OID = 15;
  95
  96
  97 Z_GenericRecord *read_grs1(char *str, ODR o)
  98 {
  99         int type, ivalue;
 100         char line[512], *buf, *ptr, *original;
 101         char value[512];
 102         Z_GenericRecord *r = 0;
 103
 104         original = str;
 105         for (;;)
 106         {
 107                 Z_TaggedElement *t;
 108                 Z_ElementData *c;
 109
 110                 ptr = strchr(str, '\n');
 111                 if (!ptr) {
 112                         return r;
 113                 }
 114                 strncpy(line, str, ptr - str);
 115                 line[ptr - str] = 0;
 116                 buf = line;
 117                 str = ptr + 1;
 118                 while (*buf && isspace(*buf))
 119                         buf++;
 120                 if (*buf == '}') {
 121                         memmove(original, str, strlen(str));
 122                         return r;
 123                 }
 124                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 125                 {
 126                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 127                         return 0;
 128                 }
 129                 if (!type && *value == '0')
 130                         return r;
 131                 if (!(buf = strchr(buf, ')')))
 132                         return 0;
 133                 buf++;
 134                 while (*buf && isspace(*buf))
 135                         buf++;
 136                 if (!*buf)
 137                         return 0;
 138                 if (!r)
 139                 {
 140                         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 141                         r->elements = (Z_TaggedElement **)
 142                         odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 143                         r->num_elements = 0;
 144                 }
 145                 if (r->num_elements > GRS_MAX_FIELDS)
 146                 {
 147                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 148                         exit(0);
 149                 }
 150                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 151                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 152                 *t->tagType = type;
 153                 t->tagValue = (Z_StringOrNumeric *)
 154                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 155                 if ((ivalue = atoi(value)))
 156                 {
 157                         t->tagValue->which = Z_StringOrNumeric_numeric;
 158                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 159                         *t->tagValue->u.numeric = ivalue;
 160                 }
 161                 else
 162                 {
 163                         t->tagValue->which = Z_StringOrNumeric_string;
 164                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 165                         strcpy(t->tagValue->u.string, value);
 166                 }
 167                 t->tagOccurrence = 0;
 168                 t->metaData = 0;
 169                 t->appliedVariant = 0;
 170                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 171                 if (*buf == '{')
 172                 {
 173                         c->which = Z_ElementData_subtree;
 174                         c->u.subtree = read_grs1(str, o);
 175                 }
 176                 else
 177                 {
 178                         c->which = Z_ElementData_string;
 179 /*                      buf[strlen(buf)-1] = '\0';*/
 180                         buf[strlen(buf)] = '\0';
 181                         c->u.string = odr_strdup(o, buf);
 182                 }
 183                 r->num_elements++;
 184         }
 185 }
 186
 187
 188
 189
 190 static void oid2str(Odr_oid *o, WRBUF buf)
 191 {
 192     for (; *o >= 0; o++) {
 193         char ibuf[16];
 194         sprintf(ibuf, "%d", *o);
 195         wrbuf_puts(buf, ibuf);
 196         if (o[1] > 0)
 197             wrbuf_putc(buf, '.');
 198     }
 199 }
 200
 201
 202 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 203 {
 204     switch (s->which) {
 205         case Z_RPNStructure_simple: {
 206             Z_Operand *o = s->u.simple;
 207
 208             switch (o->which) {
 209                 case Z_Operand_APT: {
 210                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 211
 212                     if (at->attributes) {
 213                         int i;
 214                         char ibuf[16];
 215
 216                         for (i = 0; i < at->attributes->num_attributes; i++) {
 217                             wrbuf_puts(buf, "@attr ");
 218                             if (at->attributes->attributes[i]->attributeSet) {
 219                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 220                                 wrbuf_putc(buf, ' ');
 221                             }
 222                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 223                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 224                             wrbuf_puts(buf, ibuf);
 225                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 226                             wrbuf_puts(buf, ibuf);
 227                         }
 228                     }
 229                     switch (at->term->which) {
 230                         case Z_Term_general: {
 231                             wrbuf_putc(buf, '"');
 232                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 233                             wrbuf_puts(buf, "\" ");
 234                             break;
 235                         }
 236                         default: abort();
 237                     }
 238                     break;
 239                 }
 240                 default: abort();
 241             }
 242             break;
 243         }
 244         case Z_RPNStructure_complex: {
 245             Z_Complex *c = s->u.complex;
 246
 247             switch (c->roperator->which) {
 248                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 249                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 250                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 251                 case Z_Operator_prox: abort();
 252                 default: abort();
 253             }
 254             if (!rpn2pquery(c->s1, buf))
 255                 return 0;
 256             if (!rpn2pquery(c->s2, buf))
 257                 return 0;
 258             break;
 259         }
 260         default: abort();
 261     }
 262     return 1;
 263 }
 264
 265
 266 WRBUF zquery2pquery(Z_Query *q)
 267 {
 268     WRBUF buf = wrbuf_alloc();
 269
 270     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 271         return 0;
 272     if (q->u.type_1->attributeSetId) {
 273         /* Output attribute set ID */
 274         wrbuf_puts(buf, "@attrset ");
 275         oid2str(q->u.type_1->attributeSetId, buf);
 276         wrbuf_putc(buf, ' ');
 277     }
 278     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 279 }
 280
 281
 282 int bend_sort(void *handle, bend_sort_rr *rr)
 283 {
 284         HV *href;
 285         AV *aref;
 286         SV **temp;
 287         SV *err_code;
 288         SV *err_str;
 289         SV *status;
 290         STRLEN len;
 291         char *ptr;
 292         char *ODR_err_str;
 293         char **input_setnames;
 294         Zfront_handle *zhandle = (Zfront_handle *)handle;
 295         int i;
 296
 297         dSP;
 298         ENTER;
 299         SAVETMPS;
 300
 301         aref = newAV();
 302         input_setnames = rr->input_setnames;
 303         for (i = 0; i < rr->num_input_setnames; i++)
 304         {
 305                 av_push(aref, newSVpv(*input_setnames++, 0));
 306         }
 307         href = newHV();
 308         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 309         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 310         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 311         hv_store(href, "STATUS", 6, newSViv(0), 0);
 312
 313         PUSHMARK(sp);
 314
 315         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 316
 317         PUTBACK;
 318
 319         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 320
 321         SPAGAIN;
 322
 323         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 324         err_code = newSVsv(*temp);
 325
 326         temp = hv_fetch(href, "ERR_STR", 7, 1);
 327         err_str = newSVsv(*temp);
 328
 329         temp = hv_fetch(href, "STATUS", 6, 1);
 330         status = newSVsv(*temp);
 331
 332
 333
 334
 335         PUTBACK;
 336         FREETMPS;
 337         LEAVE;
 338
 339         hv_undef(href),
 340         av_undef(aref);
 341         rr->errcode = SvIV(err_code);
 342         rr->sort_status = SvIV(status);
 343         ptr = SvPV(err_str, len);
 344         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 345         strcpy(ODR_err_str, ptr);
 346         rr->errstring = ODR_err_str;
 347
 348         sv_free(err_code);
 349         sv_free(err_str);
 350         sv_free(status);
 351
 352         return 0;
 353 }
 354
 355
 356 int bend_search(void *handle, bend_search_rr *rr)
 357 {
 358         HV *href;
 359         AV *aref;
 360         SV **temp;
 361         SV *hits;
 362         SV *err_code;
 363         SV *err_str;
 364         char *ODR_errstr;
 365         STRLEN len;
 366         int i;
 367         char **basenames;
 368         int n;
 369         WRBUF query;
 370         char *ptr;
 371         SV *point;
 372         SV *ODR_point;
 373         Zfront_handle *zhandle = (Zfront_handle *)handle;
 374
 375         dSP;
 376         ENTER;
 377         SAVETMPS;
 378
 379         aref = newAV();
 380         basenames = rr->basenames;
 381         for (i = 0; i < rr->num_bases; i++)
 382         {
 383                 av_push(aref, newSVpv(*basenames++, 0));
 384         }
 385         href = newHV();
 386         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 387         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 388         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 389         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 390         hv_store(href, "HITS", 4, newSViv(0), 0);
 391         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 392         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 393         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 394         query = zquery2pquery(rr->query);
 395         if (query)
 396         {
 397                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 398         }
 399         else
 400         {
 401                 rr->errcode = 108;
 402         }
 403         PUSHMARK(sp);
 404
 405         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 406
 407         PUTBACK;
 408
 409         n = perl_call_sv(search_ref, G_SCALAR | G_DISCARD);
 410
 411         SPAGAIN;
 412
 413         temp = hv_fetch(href, "HITS", 4, 1);
 414         hits = newSVsv(*temp);
 415
 416         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 417         err_code = newSVsv(*temp);
 418
 419         temp = hv_fetch(href, "ERR_STR", 7, 1);
 420         err_str = newSVsv(*temp);
 421
 422         temp = hv_fetch(href, "HANDLE", 6, 1);
 423         point = newSVsv(*temp);
 424
 425         PUTBACK;
 426         FREETMPS;
 427         LEAVE;
 428
 429         hv_undef(href);
 430         av_undef(aref);
 431         rr->hits = SvIV(hits);
 432         rr->errcode = SvIV(err_code);
 433         ptr = SvPV(err_str, len);
 434         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 435         strcpy(ODR_errstr, ptr);
 436         rr->errstring = ODR_errstr;
 437 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 438         memcpy(ODR_point, point, sizeof(*point));
 439         zhandle->handle = ODR_point;*/
 440         zhandle->handle = point;
 441         handle = zhandle;
 442         sv_free(hits);
 443         sv_free(err_code);
 444         sv_free(err_str);
 445         sv_free( (SV*) aref);
 446         sv_free( (SV*) href);
 447         /*sv_free(point);*/
 448         wrbuf_free(query, 1);
 449         return 0;
 450 }
 451
 452
 453 WRBUF oid2dotted(int *oid)
 454 {
 455
 456         WRBUF buf = wrbuf_alloc();
 457         int dot = 0;
 458
 459         for (; *oid != -1 ; oid++)
 460         {
 461                 char ibuf[16];
 462                 if (dot)
 463                 {
 464                         wrbuf_putc(buf, '.');
 465                 }
 466                 else
 467                 {
 468                         dot = 1;
 469                 }
 470                 sprintf(ibuf, "%d", *oid);
 471                 wrbuf_puts(buf, ibuf);
 472         }
 473         return buf;
 474 }
 475
 476
 477 int dotted2oid(char *dotted, int *buffer)
 478 {
 479         int *oid;
 480         char ibuf[16];
 481         char *ptr;
 482         int n = 0;
 483
 484         ptr = ibuf;
 485         oid = buffer;
 486         while (*dotted)
 487         {
 488                 if (*dotted == '.')
 489                 {
 490                         n++;
 491                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 492                         {
 493                                 *oid = -1;
 494                                 return -1;
 495                         }
 496                         *ptr = 0;
 497                         sscanf(ibuf, "%d", oid++);
 498                         ptr = ibuf;
 499                         dotted++;
 500
 501                 }
 502                 else
 503                 {
 504                         *ptr++ = *dotted++;
 505                 }
 506         }
 507         if (n < MAX_OID)
 508         {
 509                 *ptr = 0;
 510                 sscanf(ibuf, "%d", oid++);
 511         }
 512         *oid = -1;
 513         return 0;
 514 }
 515
 516
 517 int bend_fetch(void *handle, bend_fetch_rr *rr)
 518 {
 519         HV *href;
 520         SV **temp;
 521         SV *basename;
 522         SV *record;
 523         SV *last;
 524         SV *err_code;
 525         SV *err_string;
 526         SV *sur_flag;
 527         SV *point;
 528         SV *rep_form;
 529         char *ptr;
 530         char *ODR_record;
 531         char *ODR_basename;
 532         char *ODR_errstr;
 533         int *ODR_oid_buf;
 534         oident *oid;
 535         WRBUF oid_dotted;
 536         Zfront_handle *zhandle = (Zfront_handle *)handle;
 537
 538         Z_RecordComposition *composition;
 539         Z_ElementSetNames *simple;
 540         STRLEN length;
 541
 542         dSP;
 543         ENTER;
 544         SAVETMPS;
 545
 546         rr->errcode = 0;
 547         href = newHV();
 548         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 549         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 550         oid_dotted = oid2dotted(rr->request_format_raw);
 551         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 552         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 553         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 554         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 555         hv_store(href, "LAST", 4, newSViv(0), 0);
 556         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 557         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 558         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 559         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 560         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 561         if (rr->comp)
 562         {
 563                 composition = rr->comp;
 564                 if (composition->which == Z_RecordComp_simple)
 565                 {
 566                         simple = composition->u.simple;
 567                         if (simple->which == Z_ElementSetNames_generic)
 568                         {
 569                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 570                         }
 571                         else
 572                         {
 573                                 rr->errcode = 26;
 574                         }
 575                 }
 576                 else
 577                 {
 578                         rr->errcode = 26;
 579                 }
 580         }
 581
 582         PUSHMARK(sp);
 583
 584         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 585
 586         PUTBACK;
 587
 588         perl_call_sv(fetch_ref, G_SCALAR | G_DISCARD);
 589
 590         SPAGAIN;
 591
 592         temp = hv_fetch(href, "BASENAME", 8, 1);
 593         basename = newSVsv(*temp);
 594
 595         temp = hv_fetch(href, "RECORD", 6, 1);
 596         record = newSVsv(*temp);
 597
 598         temp = hv_fetch(href, "LAST", 4, 1);
 599         last = newSVsv(*temp);
 600
 601         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 602         err_code = newSVsv(*temp);
 603
 604         temp = hv_fetch(href, "ERR_STR", 7, 1),
 605         err_string = newSVsv(*temp);
 606
 607         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 608         sur_flag = newSVsv(*temp);
 609
 610         temp = hv_fetch(href, "REP_FORM", 8, 1);
 611         rep_form = newSVsv(*temp);
 612
 613         temp = hv_fetch(href, "HANDLE", 6, 1);
 614         point = newSVsv(*temp);
 615
 616         PUTBACK;
 617         FREETMPS;
 618         LEAVE;
 619
 620         hv_undef(href);
 621
 622         ptr = SvPV(basename, length);
 623         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 624         strcpy(ODR_basename, ptr);
 625         rr->basename = ODR_basename;
 626
 627         ptr = SvPV(rep_form, length);
 628         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 629         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 630         {
 631                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 632         }
 633         rr->output_format_raw = ODR_oid_buf;
 634
 635         ptr = SvPV(record, length);
 636         oid = oid_getentbyoid(ODR_oid_buf);
 637         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 638         {
 639                 rr->record = (char *) read_grs1(ptr, rr->stream);
 640                 rr->len = -1;
 641         }
 642         else
 643         {
 644                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 645                 strcpy(ODR_record, ptr);
 646                 rr->record = ODR_record;
 647                 rr->len = length;
 648         }
 649         zhandle->handle = point;
 650         handle = zhandle;
 651         rr->last_in_set = SvIV(last);
 652
 653         if (!(rr->errcode))
 654         {
 655                 rr->errcode = SvIV(err_code);
 656                 ptr = SvPV(err_string, length);
 657                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 658                 strcpy(ODR_errstr, ptr);
 659                 rr->errstring = ODR_errstr;
 660         }
 661         rr->surrogate_flag = SvIV(sur_flag);
 662
 663         wrbuf_free(oid_dotted, 1);
 664         sv_free((SV*) href);
 665         sv_free(basename);
 666         sv_free(record);
 667         sv_free(last);
 668         sv_free(err_string);
 669         sv_free(err_code),
 670         sv_free(sur_flag);
 671         sv_free(rep_form);
 672
 673         return 0;
 674 }
 675
 676
 677 int bend_present(void *handle, bend_present_rr *rr)
 678 {
 679
 680         HV *href;
 681         SV **temp;
 682         SV *err_code;
 683         SV *err_string;
 684         SV *hits;
 685         SV *point;
 686         STRLEN len;
 687         Z_RecordComposition *composition;
 688         Z_ElementSetNames *simple;
 689         char *ODR_errstr;
 690         char *ptr;
 691         Zfront_handle *zhandle = (Zfront_handle *)handle;
 692
 693 /*      WRBUF oid_dotted; */
 694
 695         dSP;
 696         ENTER;
 697         SAVETMPS;
 698
 699         href = newHV();
 700         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 701         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 702         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 703         hv_store(href, "START", 5, newSViv(rr->start), 0);
 704         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 705         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 706         /*oid_dotted = oid2dotted(rr->request_format_raw);
 707         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 708         hv_store(href, "HITS", 4, newSViv(0), 0);
 709         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 710         if (rr->comp)
 711         {
 712                 composition = rr->comp;
 713                 if (composition->which == Z_RecordComp_simple)
 714                 {
 715                         simple = composition->u.simple;
 716                         if (simple->which == Z_ElementSetNames_generic)
 717                         {
 718                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 719                         }
 720                         else
 721                         {
 722                                 rr->errcode = 26;
 723                                 return 0;
 724                         }
 725                 }
 726                 else
 727                 {
 728                         rr->errcode = 26;
 729                         return 0;
 730                 }
 731         }
 732
 733         PUSHMARK(sp);
 734
 735         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 736
 737         PUTBACK;
 738
 739         perl_call_sv(present_ref, G_SCALAR | G_DISCARD);
 740
 741         SPAGAIN;
 742
 743         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 744         err_code = newSVsv(*temp);
 745
 746         temp = hv_fetch(href, "ERR_STR", 7, 1);
 747         err_string = newSVsv(*temp);
 748
 749         temp = hv_fetch(href, "HITS", 4, 1);
 750         hits = newSVsv(*temp);
 751
 752         temp = hv_fetch(href, "HANDLE", 6, 1);
 753         point = newSVsv(*temp);
 754
 755         PUTBACK;
 756         FREETMPS;
 757         LEAVE;
 758
 759         hv_undef(href);
 760         rr->errcode = SvIV(err_code);
 761         rr->hits = SvIV(hits);
 762
 763         ptr = SvPV(err_string, len);
 764         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 765         strcpy(ODR_errstr, ptr);
 766         rr->errstring = ODR_errstr;
 767 /*      wrbuf_free(oid_dotted, 1);*/
 768         zhandle->handle = point;
 769         handle = zhandle;
 770         sv_free(err_code);
 771         sv_free(err_string);
 772         sv_free(hits);
 773         sv_free( (SV*) href);
 774
 775         return 0;
 776 }
 777
 778
 779 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 780 {
 781         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 782         return 0;
 783 }
 784
 785
 786 int bend_delete(void *handle, bend_delete_rr *rr)
 787 {
 788         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 789         return 0;
 790 }
 791
 792
 793 int bend_scan(void *handle, bend_scan_rr *rr)
 794 {
 795         HV *href;
 796         AV *aref;
 797         AV *list;
 798         AV *entries;
 799         HV *scan_item;
 800         struct scan_entry *scan_list;
 801         struct scan_entry *buffer;
 802         int *step_size = rr->step_size;
 803         int i;
 804         char **basenames;
 805         SV **temp;
 806         SV *err_code = sv_newmortal();
 807         SV *err_str = sv_newmortal();
 808         SV *point = sv_newmortal();
 809         SV *status = sv_newmortal();
 810         SV *number = sv_newmortal();
 811         char *ptr;
 812         char *ODR_errstr;
 813         STRLEN len;
 814         int term_len;
 815         SV *term_tmp;
 816         SV *entries_ref;
 817
 818         Zfront_handle *zhandle = (Zfront_handle *)handle;
 819
 820         dSP;
 821         ENTER;
 822         SAVETMPS;
 823         href = newHV();
 824         list = newAV();
 825         if (rr->term->term->which == Z_Term_general)
 826         {
 827                 term_len = rr->term->term->u.general->len;
 828                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
 829         } else {
 830                 rr->errcode = 229;      /* Unsupported term type */
 831                 return 0;
 832         }
 833         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
 834         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
 835         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
 836         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 837         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 838         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 839         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
 840         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
 841         aref = newAV();
 842         basenames = rr->basenames;
 843         for (i = 0; i < rr->num_bases; i++)
 844         {
 845                 av_push(aref, newSVpv(*basenames++, 0));
 846         }
 847         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 848
 849         PUSHMARK(sp);
 850
 851         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 852
 853         PUTBACK;
 854
 855         perl_call_sv(scan_ref, G_SCALAR | G_DISCARD);
 856
 857         SPAGAIN;
 858
 859         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 860         err_code = newSVsv(*temp);
 861
 862         temp = hv_fetch(href, "ERR_STR", 7, 1);
 863         err_str = newSVsv(*temp);
 864
 865         temp = hv_fetch(href, "HANDLE", 6, 1);
 866         point = newSVsv(*temp);
 867
 868         temp = hv_fetch(href, "STATUS", 6, 1);
 869         status = newSVsv(*temp);
 870
 871         temp = hv_fetch(href, "NUMBER", 6, 1);
 872         number = newSVsv(*temp);
 873
 874         temp = hv_fetch(href, "ENTRIES", 7, 1);
 875         entries_ref = newSVsv(*temp);
 876
 877         PUTBACK;
 878         FREETMPS;
 879         LEAVE;
 880
 881         ptr = SvPV(err_str, len);
 882         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 883         strcpy(ODR_errstr, ptr);
 884         rr->errstring = ODR_errstr;
 885         rr->errcode = SvIV(err_code);
 886         rr->num_entries = SvIV(number);
 887         rr->status = SvIV(status);
 888         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
 889         buffer = scan_list;
 890         entries = (AV *)SvRV(entries_ref);
 891         for (i = 0; i < rr->num_entries; i++)
 892         {
 893                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
 894                 temp = hv_fetch(scan_item, "TERM", 4, 1);
 895                 ptr = SvPV(*temp, len);
 896                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
 897                 strcpy(buffer->term, ptr);
 898                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
 899                 buffer->occurrences = SvIV(*temp);
 900                 buffer++;
 901                 hv_undef(scan_item);
 902         }
 903         rr->entries = scan_list;
 904         zhandle->handle = point;
 905         handle = zhandle;
 906         sv_free(err_code);
 907         sv_free(err_str);
 908         sv_free(status);
 909         sv_free(number);
 910         hv_undef(href);
 911         sv_free((SV *)href);
 912         av_undef(aref);
 913         sv_free((SV *)aref);
 914         av_undef(list);
 915         sv_free((SV *)list);
 916         av_undef(entries);
 917         /*sv_free((SV *)entries);*/
 918         sv_free(entries_ref);
 919
 920         return 0;
 921 }
 922
 923
 924 bend_initresult *bend_init(bend_initrequest *q)
 925 {
 926         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
 927         HV *href;
 928         SV **temp;
 929         SV *name;
 930         SV *ver;
 931         SV *err_str;
 932         SV *status;
 933         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
 934         STRLEN len;
 935         int n;
 936         SV *handle;
 937         /*char *name_ptr;
 938         char *ver_ptr;*/
 939         char *ptr;
 940
 941         dSP;
 942         ENTER;
 943         SAVETMPS;
 944
 945         /*q->bend_sort = bend_sort;*/
 946         if (search_ref)
 947         {
 948                 q->bend_search = bend_search;
 949         }
 950         if (present_ref)
 951         {
 952                 q->bend_present = bend_present;
 953         }
 954         /*q->bend_esrequest = bend_esrequest;*/
 955         /*q->bend_delete = bend_delete;*/
 956         if (fetch_ref)
 957         {
 958                 q->bend_fetch = bend_fetch;
 959         }
 960         if (scan_ref)
 961         {
 962                 q->bend_scan = bend_scan;
 963         }
 964         href = newHV();
 965         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
 966         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
 967         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 968         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
 969         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
 970         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 971
 972         PUSHMARK(sp);
 973
 974         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 975
 976         PUTBACK;
 977
 978         if (init_ref != NULL)
 979         {
 980                 perl_call_sv(init_ref, G_SCALAR | G_DISCARD);
 981         }
 982
 983         SPAGAIN;
 984
 985         temp = hv_fetch(href, "IMP_NAME", 8, 1);
 986         name = newSVsv(*temp);
 987
 988         temp = hv_fetch(href, "IMP_VER", 7, 1);
 989         ver = newSVsv(*temp);
 990
 991         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 992         status = newSVsv(*temp);
 993
 994         temp = hv_fetch(href, "HANDLE", 6, 1);
 995         handle= newSVsv(*temp);
 996
 997         hv_undef(href);
 998         PUTBACK;
 999         FREETMPS;
1000         LEAVE;
1001         zhandle->handle = handle;
1002         r->errcode = SvIV(status);
1003         r->handle = zhandle;
1004         ptr = SvPV(name, len);
1005         q->implementation_name = (char *)xmalloc(len + 1);
1006         strcpy(q->implementation_name, ptr);
1007 /*      q->implementation_name = SvPV(name, len);*/
1008         ptr = SvPV(ver, len);
1009         q->implementation_version = (char *)xmalloc(len + 1);
1010         strcpy(q->implementation_version, ptr);
1011
1012         return r;
1013 }
1014
1015
1016 void bend_close(void *handle)
1017 {
1018         HV *href;
1019         Zfront_handle *zhandle = (Zfront_handle *)handle;
1020         SV **temp;
1021
1022         dSP;
1023         ENTER;
1024         SAVETMPS;
1025
1026         if (close_ref == NULL)
1027         {
1028                 return;
1029         }
1030
1031         href = newHV();
1032         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1033
1034         PUSHMARK(sp);
1035
1036         XPUSHs(sv_2mortal(newRV((SV *)href)));
1037
1038         PUTBACK;
1039
1040         perl_call_sv(close_ref, G_SCALAR | G_DISCARD);
1041
1042         SPAGAIN;
1043
1044         PUTBACK;
1045         FREETMPS;
1046         LEAVE;
1047
1048         xfree(handle);
1049
1050         return;
1051 }
1052
1053
1054 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1055
1056 void
1057 set_init_handler(arg)
1058                 SV *arg
1059         CODE:
1060                 init_ref = newSVsv(arg);
1061
1062
1063 void
1064 set_close_handler(arg)
1065                 SV *arg
1066         CODE:
1067                 close_ref = newSVsv(arg);
1068
1069
1070 void
1071 set_sort_handler(arg)
1072                 SV *arg
1073         CODE:
1074                 sort_ref = newSVsv(arg);
1075
1076 void
1077 set_search_handler(arg)
1078                 SV *arg
1079         CODE:
1080                 search_ref = newSVsv(arg);
1081
1082
1083 void
1084 set_fetch_handler(arg)
1085                 SV *arg
1086         CODE:
1087                 fetch_ref = newSVsv(arg);
1088
1089
1090 void
1091 set_present_handler(arg)
1092                 SV *arg
1093         CODE:
1094                 present_ref = newSVsv(arg);
1095
1096
1097 void
1098 set_esrequest_handler(arg)
1099                 SV *arg
1100         CODE:
1101                 esrequest_ref = newSVsv(arg);
1102
1103
1104 void
1105 set_delete_handler(arg)
1106                 SV *arg
1107         CODE:
1108                 delete_ref = newSVsv(arg);
1109
1110
1111 void
1112 set_scan_handler(arg)
1113                 SV *arg
1114         CODE:
1115                 scan_ref = newSVsv(arg);
1116
1117
1118 int
1119 start_server(...)
1120         PREINIT:
1121                 char **argv;
1122                 char **argv_buf;
1123                 char *ptr;
1124                 int i;
1125                 STRLEN len;
1126         CODE:
1127                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1128                 argv = argv_buf;
1129                 for (i = 0; i < items; i++)
1130                 {
1131                         ptr = SvPV(ST(i), len);
1132                         *argv_buf = (char *)xmalloc(len + 1);
1133                         strcpy(*argv_buf++, ptr);
1134                 }
1135                 *argv_buf = NULL;
1136
1137                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1138         OUTPUT:
1139                 RETVAL
1140
1141
1142 int
1143 ScanSuccess()
1144         CODE:
1145                 RETVAL = BEND_SCAN_SUCCESS;
1146         OUTPUT:
1147                 RETVAL
1148
1149 int
1150 ScanPartial()
1151         CODE:
1152                 RETVAL = BEND_SCAN_PARTIAL;
1153         OUTPUT:
1154                 RETVAL
1155
1156