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