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