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