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 1.15  2002-09-16 13:55:53  sondberg
  29 /*Added support for authentication into SimpleServer.
  30 /*
  31 /*Revision 1.14  2002/03/05 00:34:13  mike
  32 /*Support for implementation_id (commented out until it's
  33 /*in mainstream Yaz)
  34 /*
  35 /*Revision 1.13  2002/02/28 11:21:57  mike
  36 /*Add RPN structure to search-handler argument hash.
  37 /*
  38 /*Revision 1.12  2001/08/30 14:02:10  sondberg
  39 /*Small changes.
  40 /*
  41 /*Revision 1.11  2001/08/30 13:15:11  sondberg
  42 /*Corrected a memory leak, one more to go.
  43 /*
  44 /*Revision 1.10  2001/08/29 11:48:36  sondberg
  45 /*Added routines
  46 /*
  47 /*      Net::Z3950::SimpleServer::ScanSuccess
  48 /*      Net::Z3950::SimpleServer::ScanPartial
  49 /*
  50 /*and a bit of documentation.
  51 /*
  52 /*Revision 1.9  2001/08/24 14:00:20  sondberg
  53 /*Added support for scan.
  54 /*
  55 /*Revision 1.8  2001/05/21 11:07:02  sondberg
  56 /*Extended maximum numbers of GRS-1 elements. Should be done dynamically.
  57 /*
  58 /*Revision 1.7  2001/03/13 14:17:15  sondberg
  59 /*Added support for GRS-1.
  60 /**/
  61
  62
  63 #include "EXTERN.h"
  64 #include "perl.h"
  65 #include "XSUB.h"
  66 #include <yaz/backend.h>
  67 #include <yaz/log.h>
  68 #include <yaz/wrbuf.h>
  69 #include <stdio.h>
  70 #include <unistd.h>
  71 #include <stdlib.h>
  72 #include <ctype.h>
  73 #define GRS_MAX_FIELDS 500
  74 #ifdef ASN_COMPILED
  75 #include <yaz/ill.h>
  76 #endif
  77 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  78 #define sv_undef PL_sv_undef
  79 #endif
  80
  81 typedef struct {
  82         SV *handle;
  83
  84         SV *init_ref;
  85         SV *close_ref;
  86         SV *sort_ref;
  87         SV *search_ref;
  88         SV *fetch_ref;
  89         SV *present_ref;
  90         SV *esrequest_ref;
  91         SV *delete_ref;
  92         SV *scan_ref;
  93 } Zfront_handle;
  94
  95 SV *init_ref = NULL;
  96 SV *close_ref = NULL;
  97 SV *sort_ref = NULL;
  98 SV *search_ref = NULL;
  99 SV *fetch_ref = NULL;
 100 SV *present_ref = NULL;
 101 SV *esrequest_ref = NULL;
 102 SV *delete_ref = NULL;
 103 SV *scan_ref = NULL;
 104 int MAX_OID = 15;
 105
 106
 107 Z_GenericRecord *read_grs1(char *str, ODR o)
 108 {
 109         int type, ivalue;
 110         char line[512], *buf, *ptr, *original;
 111         char value[512];
 112         Z_GenericRecord *r = 0;
 113
 114         original = str;
 115         for (;;)
 116         {
 117                 Z_TaggedElement *t;
 118                 Z_ElementData *c;
 119
 120                 ptr = strchr(str, '\n');
 121                 if (!ptr) {
 122                         return r;
 123                 }
 124                 strncpy(line, str, ptr - str);
 125                 line[ptr - str] = 0;
 126                 buf = line;
 127                 str = ptr + 1;
 128                 while (*buf && isspace(*buf))
 129                         buf++;
 130                 if (*buf == '}') {
 131                         memmove(original, str, strlen(str));
 132                         return r;
 133                 }
 134                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 135                 {
 136                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 137                         return 0;
 138                 }
 139                 if (!type && *value == '0')
 140                         return r;
 141                 if (!(buf = strchr(buf, ')')))
 142                         return 0;
 143                 buf++;
 144                 while (*buf && isspace(*buf))
 145                         buf++;
 146                 if (!*buf)
 147                         return 0;
 148                 if (!r)
 149                 {
 150                         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 151                         r->elements = (Z_TaggedElement **)
 152                         odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 153                         r->num_elements = 0;
 154                 }
 155                 if (r->num_elements > GRS_MAX_FIELDS)
 156                 {
 157                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 158                         exit(0);
 159                 }
 160                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 161                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 162                 *t->tagType = type;
 163                 t->tagValue = (Z_StringOrNumeric *)
 164                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 165                 if ((ivalue = atoi(value)))
 166                 {
 167                         t->tagValue->which = Z_StringOrNumeric_numeric;
 168                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 169                         *t->tagValue->u.numeric = ivalue;
 170                 }
 171                 else
 172                 {
 173                         t->tagValue->which = Z_StringOrNumeric_string;
 174                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 175                         strcpy(t->tagValue->u.string, value);
 176                 }
 177                 t->tagOccurrence = 0;
 178                 t->metaData = 0;
 179                 t->appliedVariant = 0;
 180                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 181                 if (*buf == '{')
 182                 {
 183                         c->which = Z_ElementData_subtree;
 184                         c->u.subtree = read_grs1(str, o);
 185                 }
 186                 else
 187                 {
 188                         c->which = Z_ElementData_string;
 189 /*                      buf[strlen(buf)-1] = '\0';*/
 190                         buf[strlen(buf)] = '\0';
 191                         c->u.string = odr_strdup(o, buf);
 192                 }
 193                 r->num_elements++;
 194         }
 195 }
 196
 197
 198
 199
 200 static void oid2str(Odr_oid *o, WRBUF buf)
 201 {
 202     for (; *o >= 0; o++) {
 203         char ibuf[16];
 204         sprintf(ibuf, "%d", *o);
 205         wrbuf_puts(buf, ibuf);
 206         if (o[1] > 0)
 207             wrbuf_putc(buf, '.');
 208     }
 209 }
 210
 211
 212 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 213 {
 214     switch (s->which) {
 215         case Z_RPNStructure_simple: {
 216             Z_Operand *o = s->u.simple;
 217
 218             switch (o->which) {
 219                 case Z_Operand_APT: {
 220                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 221
 222                     if (at->attributes) {
 223                         int i;
 224                         char ibuf[16];
 225
 226                         for (i = 0; i < at->attributes->num_attributes; i++) {
 227                             wrbuf_puts(buf, "@attr ");
 228                             if (at->attributes->attributes[i]->attributeSet) {
 229                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 230                                 wrbuf_putc(buf, ' ');
 231                             }
 232                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 233                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 234                             wrbuf_puts(buf, ibuf);
 235                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 236                             wrbuf_puts(buf, ibuf);
 237                         }
 238                     }
 239                     switch (at->term->which) {
 240                         case Z_Term_general: {
 241                             wrbuf_putc(buf, '"');
 242                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 243                             wrbuf_puts(buf, "\" ");
 244                             break;
 245                         }
 246                         default: abort();
 247                     }
 248                     break;
 249                 }
 250                 default: abort();
 251             }
 252             break;
 253         }
 254         case Z_RPNStructure_complex: {
 255             Z_Complex *c = s->u.complex;
 256
 257             switch (c->roperator->which) {
 258                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 259                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 260                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 261                 case Z_Operator_prox: abort();
 262                 default: abort();
 263             }
 264             if (!rpn2pquery(c->s1, buf))
 265                 return 0;
 266             if (!rpn2pquery(c->s2, buf))
 267                 return 0;
 268             break;
 269         }
 270         default: abort();
 271     }
 272     return 1;
 273 }
 274
 275
 276 WRBUF zquery2pquery(Z_Query *q)
 277 {
 278     WRBUF buf = wrbuf_alloc();
 279
 280     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 281         return 0;
 282     if (q->u.type_1->attributeSetId) {
 283         /* Output attribute set ID */
 284         wrbuf_puts(buf, "@attrset ");
 285         oid2str(q->u.type_1->attributeSetId, buf);
 286         wrbuf_putc(buf, ' ');
 287     }
 288     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 289 }
 290
 291
 292 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 293 #include <stdarg.h>
 294 void fatal(char *fmt, ...)
 295 {
 296     va_list ap;
 297
 298     fprintf(stderr, "FATAL (yazwrap): ");
 299     va_start(ap, fmt);
 300     vfprintf(stderr, fmt, ap);
 301     va_end(ap);
 302     fprintf(stderr, "\n");
 303     abort();
 304 }
 305
 306
 307 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 308 /*
 309  * Creates a new Perl object of type `class'; the newly-created scalar
 310  * that is a reference to the blessed thingy `referent' is returned.
 311  */
 312 static SV *newObject(char *class, SV *referent)
 313 {
 314     HV *stash;
 315     SV *sv;
 316
 317     sv = newRV_noinc((SV*) referent);
 318     stash = gv_stashpv(class, 0);
 319     if (stash == 0)
 320         fatal("attempt to create object of undefined class '%s'", class);
 321     /*assert(stash != 0);*/
 322     sv_bless(sv, stash);
 323     return sv;
 324 }
 325
 326
 327 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 328 static void setMember(HV *hv, char *name, SV *val)
 329 {
 330     /* We don't increment `val's reference count -- I think this is
 331      * right because it's created with a refcount of 1, and in fact
 332      * the reference via this hash is the only reference to it in
 333      * general.
 334      */
 335     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 336         fatal("couldn't store member in hash");
 337 }
 338
 339
 340 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 341 static SV *translateOID(Odr_oid *x)
 342 {
 343     /* Yaz represents an OID by an int array terminated by a negative
 344      * value, typically -1; we represent it as a reference to a
 345      * blessed scalar string of "."-separated elements.
 346      */
 347     char buf[1000];
 348     int i;
 349
 350     *buf = '\0';
 351     for (i = 0; x[i] >= 0; i++) {
 352         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 353         if (x[i+1] >- 0)
 354             strcat(buf, ".");
 355     }
 356
 357     /*
 358      * ### We'd like to return a blessed scalar (string) here, but of
 359      *  course you can't do that in Perl: only references can be
 360      *  blessed, so we'd have to return a _reference_ to a string, and
 361      *  bless _that_.  Better to do without the blessing, I think.
 362      */
 363     if (1) {
 364         return newSVpv(buf, 0);
 365     } else {
 366         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 367     }
 368 }
 369
 370
 371 static SV *rpn2perl(Z_RPNStructure *s)
 372 {
 373     SV *sv;
 374     HV *hv;
 375     AV *av;
 376
 377     switch (s->which) {
 378     case Z_RPNStructure_simple: {
 379         Z_Operand *o = s->u.simple;
 380         Z_AttributesPlusTerm *at;
 381         if (o->which != Z_Operand_APT)
 382             fatal("can't handle RPN simples other than APT");
 383         at = o->u.attributesPlusTerm;
 384         if (at->term->which != Z_Term_general)
 385             fatal("can't handle RPN terms other than general");
 386
 387         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 388         if (at->attributes) {
 389             int i;
 390             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 391                                   (SV*) (av = newAV()));
 392             for (i = 0; i < at->attributes->num_attributes; i++) {
 393                 Z_AttributeElement *elem = at->attributes->attributes[i];
 394                 HV *hv2;
 395                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 396                                     (SV*) (hv2 = newHV()));
 397                 if (elem->attributeSet)
 398                     setMember(hv2, "attributeSet",
 399                               translateOID(elem->attributeSet));
 400                 setMember(hv2, "attributeType",
 401                           newSViv(*elem->attributeType));
 402                 assert(elem->which == Z_AttributeValue_numeric);
 403                 setMember(hv2, "attributeValue",
 404                           newSViv(*elem->value.numeric));
 405                 av_push(av, tmp);
 406             }
 407             setMember(hv, "attributes", attrs);
 408         }
 409         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 410                                       at->term->u.general->len));
 411         return sv;
 412     }
 413     case Z_RPNStructure_complex: {
 414         SV *tmp;
 415         Z_Complex *c = s->u.complex;
 416         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 417         switch (c->roperator->which) {
 418         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 419         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 420         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 421         case Z_Operator_prox:    fatal("proximity not yet supported");
 422         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 423         }
 424         sv = newObject(type, (SV*) (av = newAV()));
 425         if ((tmp = rpn2perl(c->s1)) == 0)
 426             return 0;
 427         av_push(av, tmp);
 428         if ((tmp = rpn2perl(c->s2)) == 0)
 429             return 0;
 430         av_push(av, tmp);
 431         return sv;
 432     }
 433     default: fatal("unknown RPN node type %d", (int) s->which);
 434     }
 435
 436     return 0;
 437 }
 438
 439
 440 static SV *zquery2perl(Z_Query *q)
 441 {
 442     SV *sv;
 443     HV *hv;
 444
 445     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 446         return 0;
 447     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 448     if (q->u.type_1->attributeSetId)
 449         setMember(hv, "attributeSet",
 450                   translateOID(q->u.type_1->attributeSetId));
 451     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 452     return sv;
 453 }
 454
 455
 456 int bend_sort(void *handle, bend_sort_rr *rr)
 457 {
 458         HV *href;
 459         AV *aref;
 460         SV **temp;
 461         SV *err_code;
 462         SV *err_str;
 463         SV *status;
 464         STRLEN len;
 465         char *ptr;
 466         char *ODR_err_str;
 467         char **input_setnames;
 468         Zfront_handle *zhandle = (Zfront_handle *)handle;
 469         int i;
 470
 471         dSP;
 472         ENTER;
 473         SAVETMPS;
 474
 475         aref = newAV();
 476         input_setnames = rr->input_setnames;
 477         for (i = 0; i < rr->num_input_setnames; i++)
 478         {
 479                 av_push(aref, newSVpv(*input_setnames++, 0));
 480         }
 481         href = newHV();
 482         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 483         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 484         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 485         hv_store(href, "STATUS", 6, newSViv(0), 0);
 486
 487         PUSHMARK(sp);
 488
 489         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 490
 491         PUTBACK;
 492
 493         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 494
 495         SPAGAIN;
 496
 497         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 498         err_code = newSVsv(*temp);
 499
 500         temp = hv_fetch(href, "ERR_STR", 7, 1);
 501         err_str = newSVsv(*temp);
 502
 503         temp = hv_fetch(href, "STATUS", 6, 1);
 504         status = newSVsv(*temp);
 505
 506
 507
 508
 509         PUTBACK;
 510         FREETMPS;
 511         LEAVE;
 512
 513         hv_undef(href),
 514         av_undef(aref);
 515         rr->errcode = SvIV(err_code);
 516         rr->sort_status = SvIV(status);
 517         ptr = SvPV(err_str, len);
 518         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 519         strcpy(ODR_err_str, ptr);
 520         rr->errstring = ODR_err_str;
 521
 522         sv_free(err_code);
 523         sv_free(err_str);
 524         sv_free(status);
 525
 526         return 0;
 527 }
 528
 529
 530 int bend_search(void *handle, bend_search_rr *rr)
 531 {
 532         HV *href;
 533         AV *aref;
 534         SV **temp;
 535         SV *hits;
 536         SV *err_code;
 537         SV *err_str;
 538         char *ODR_errstr;
 539         STRLEN len;
 540         int i;
 541         char **basenames;
 542         int n;
 543         WRBUF query;
 544         char *ptr;
 545         SV *point;
 546         SV *ODR_point;
 547         Zfront_handle *zhandle = (Zfront_handle *)handle;
 548
 549         dSP;
 550         ENTER;
 551         SAVETMPS;
 552
 553         aref = newAV();
 554         basenames = rr->basenames;
 555         for (i = 0; i < rr->num_bases; i++)
 556         {
 557                 av_push(aref, newSVpv(*basenames++, 0));
 558         }
 559         href = newHV();
 560         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 561         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 562         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 563         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 564         hv_store(href, "HITS", 4, newSViv(0), 0);
 565         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 566         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 567         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 568         hv_store(href, "RPN", 3, zquery2perl(rr->query), 0);
 569         query = zquery2pquery(rr->query);
 570         if (query)
 571         {
 572                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 573         }
 574         else
 575         {
 576                 rr->errcode = 108;
 577         }
 578         PUSHMARK(sp);
 579
 580         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 581
 582         PUTBACK;
 583
 584         n = perl_call_sv(search_ref, G_SCALAR | G_DISCARD);
 585
 586         SPAGAIN;
 587
 588         temp = hv_fetch(href, "HITS", 4, 1);
 589         hits = newSVsv(*temp);
 590
 591         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 592         err_code = newSVsv(*temp);
 593
 594         temp = hv_fetch(href, "ERR_STR", 7, 1);
 595         err_str = newSVsv(*temp);
 596
 597         temp = hv_fetch(href, "HANDLE", 6, 1);
 598         point = newSVsv(*temp);
 599
 600         PUTBACK;
 601         FREETMPS;
 602         LEAVE;
 603
 604         hv_undef(href);
 605         av_undef(aref);
 606         rr->hits = SvIV(hits);
 607         rr->errcode = SvIV(err_code);
 608         ptr = SvPV(err_str, len);
 609         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 610         strcpy(ODR_errstr, ptr);
 611         rr->errstring = ODR_errstr;
 612 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 613         memcpy(ODR_point, point, sizeof(*point));
 614         zhandle->handle = ODR_point;*/
 615         zhandle->handle = point;
 616         handle = zhandle;
 617         sv_free(hits);
 618         sv_free(err_code);
 619         sv_free(err_str);
 620         sv_free( (SV*) aref);
 621         sv_free( (SV*) href);
 622         /*sv_free(point);*/
 623         wrbuf_free(query, 1);
 624         return 0;
 625 }
 626
 627
 628 /* ### this is worryingly similar to oid2str() */
 629 WRBUF oid2dotted(int *oid)
 630 {
 631
 632         WRBUF buf = wrbuf_alloc();
 633         int dot = 0;
 634
 635         for (; *oid != -1 ; oid++)
 636         {
 637                 char ibuf[16];
 638                 if (dot)
 639                 {
 640                         wrbuf_putc(buf, '.');
 641                 }
 642                 else
 643                 {
 644                         dot = 1;
 645                 }
 646                 sprintf(ibuf, "%d", *oid);
 647                 wrbuf_puts(buf, ibuf);
 648         }
 649         return buf;
 650 }
 651
 652
 653 int dotted2oid(char *dotted, int *buffer)
 654 {
 655         int *oid;
 656         char ibuf[16];
 657         char *ptr;
 658         int n = 0;
 659
 660         ptr = ibuf;
 661         oid = buffer;
 662         while (*dotted)
 663         {
 664                 if (*dotted == '.')
 665                 {
 666                         n++;
 667                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 668                         {
 669                                 *oid = -1;
 670                                 return -1;
 671                         }
 672                         *ptr = 0;
 673                         sscanf(ibuf, "%d", oid++);
 674                         ptr = ibuf;
 675                         dotted++;
 676
 677                 }
 678                 else
 679                 {
 680                         *ptr++ = *dotted++;
 681                 }
 682         }
 683         if (n < MAX_OID)
 684         {
 685                 *ptr = 0;
 686                 sscanf(ibuf, "%d", oid++);
 687         }
 688         *oid = -1;
 689         return 0;
 690 }
 691
 692
 693 int bend_fetch(void *handle, bend_fetch_rr *rr)
 694 {
 695         HV *href;
 696         SV **temp;
 697         SV *basename;
 698         SV *record;
 699         SV *last;
 700         SV *err_code;
 701         SV *err_string;
 702         SV *sur_flag;
 703         SV *point;
 704         SV *rep_form;
 705         char *ptr;
 706         char *ODR_record;
 707         char *ODR_basename;
 708         char *ODR_errstr;
 709         int *ODR_oid_buf;
 710         oident *oid;
 711         WRBUF oid_dotted;
 712         Zfront_handle *zhandle = (Zfront_handle *)handle;
 713
 714         Z_RecordComposition *composition;
 715         Z_ElementSetNames *simple;
 716         STRLEN length;
 717
 718         dSP;
 719         ENTER;
 720         SAVETMPS;
 721
 722         rr->errcode = 0;
 723         href = newHV();
 724         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 725         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 726         oid_dotted = oid2dotted(rr->request_format_raw);
 727         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 728         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 729         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 730         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 731         hv_store(href, "LAST", 4, newSViv(0), 0);
 732         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 733         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 734         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 735         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 736         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 737         if (rr->comp)
 738         {
 739                 composition = rr->comp;
 740                 if (composition->which == Z_RecordComp_simple)
 741                 {
 742                         simple = composition->u.simple;
 743                         if (simple->which == Z_ElementSetNames_generic)
 744                         {
 745                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 746                         }
 747                         else
 748                         {
 749                                 rr->errcode = 26;
 750                         }
 751                 }
 752                 else
 753                 {
 754                         rr->errcode = 26;
 755                 }
 756         }
 757
 758         PUSHMARK(sp);
 759
 760         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 761
 762         PUTBACK;
 763
 764         perl_call_sv(fetch_ref, G_SCALAR | G_DISCARD);
 765
 766         SPAGAIN;
 767
 768         temp = hv_fetch(href, "BASENAME", 8, 1);
 769         basename = newSVsv(*temp);
 770
 771         temp = hv_fetch(href, "RECORD", 6, 1);
 772         record = newSVsv(*temp);
 773
 774         temp = hv_fetch(href, "LAST", 4, 1);
 775         last = newSVsv(*temp);
 776
 777         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 778         err_code = newSVsv(*temp);
 779
 780         temp = hv_fetch(href, "ERR_STR", 7, 1),
 781         err_string = newSVsv(*temp);
 782
 783         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 784         sur_flag = newSVsv(*temp);
 785
 786         temp = hv_fetch(href, "REP_FORM", 8, 1);
 787         rep_form = newSVsv(*temp);
 788
 789         temp = hv_fetch(href, "HANDLE", 6, 1);
 790         point = newSVsv(*temp);
 791
 792         PUTBACK;
 793         FREETMPS;
 794         LEAVE;
 795
 796         hv_undef(href);
 797
 798         ptr = SvPV(basename, length);
 799         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 800         strcpy(ODR_basename, ptr);
 801         rr->basename = ODR_basename;
 802
 803         ptr = SvPV(rep_form, length);
 804         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 805         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 806         {
 807                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 808         }
 809         rr->output_format_raw = ODR_oid_buf;
 810
 811         ptr = SvPV(record, length);
 812         oid = oid_getentbyoid(ODR_oid_buf);
 813         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 814         {
 815                 rr->record = (char *) read_grs1(ptr, rr->stream);
 816                 rr->len = -1;
 817         }
 818         else
 819         {
 820                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 821                 strcpy(ODR_record, ptr);
 822                 rr->record = ODR_record;
 823                 rr->len = length;
 824         }
 825         zhandle->handle = point;
 826         handle = zhandle;
 827         rr->last_in_set = SvIV(last);
 828
 829         if (!(rr->errcode))
 830         {
 831                 rr->errcode = SvIV(err_code);
 832                 ptr = SvPV(err_string, length);
 833                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 834                 strcpy(ODR_errstr, ptr);
 835                 rr->errstring = ODR_errstr;
 836         }
 837         rr->surrogate_flag = SvIV(sur_flag);
 838
 839         wrbuf_free(oid_dotted, 1);
 840         sv_free((SV*) href);
 841         sv_free(basename);
 842         sv_free(record);
 843         sv_free(last);
 844         sv_free(err_string);
 845         sv_free(err_code),
 846         sv_free(sur_flag);
 847         sv_free(rep_form);
 848
 849         return 0;
 850 }
 851
 852
 853 int bend_present(void *handle, bend_present_rr *rr)
 854 {
 855
 856         HV *href;
 857         SV **temp;
 858         SV *err_code;
 859         SV *err_string;
 860         SV *hits;
 861         SV *point;
 862         STRLEN len;
 863         Z_RecordComposition *composition;
 864         Z_ElementSetNames *simple;
 865         char *ODR_errstr;
 866         char *ptr;
 867         Zfront_handle *zhandle = (Zfront_handle *)handle;
 868
 869 /*      WRBUF oid_dotted; */
 870
 871         dSP;
 872         ENTER;
 873         SAVETMPS;
 874
 875         href = newHV();
 876         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 877         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 878         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 879         hv_store(href, "START", 5, newSViv(rr->start), 0);
 880         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 881         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 882         /*oid_dotted = oid2dotted(rr->request_format_raw);
 883         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 884         hv_store(href, "HITS", 4, newSViv(0), 0);
 885         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 886         if (rr->comp)
 887         {
 888                 composition = rr->comp;
 889                 if (composition->which == Z_RecordComp_simple)
 890                 {
 891                         simple = composition->u.simple;
 892                         if (simple->which == Z_ElementSetNames_generic)
 893                         {
 894                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 895                         }
 896                         else
 897                         {
 898                                 rr->errcode = 26;
 899                                 return 0;
 900                         }
 901                 }
 902                 else
 903                 {
 904                         rr->errcode = 26;
 905                         return 0;
 906                 }
 907         }
 908
 909         PUSHMARK(sp);
 910
 911         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 912
 913         PUTBACK;
 914
 915         perl_call_sv(present_ref, G_SCALAR | G_DISCARD);
 916
 917         SPAGAIN;
 918
 919         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 920         err_code = newSVsv(*temp);
 921
 922         temp = hv_fetch(href, "ERR_STR", 7, 1);
 923         err_string = newSVsv(*temp);
 924
 925         temp = hv_fetch(href, "HITS", 4, 1);
 926         hits = newSVsv(*temp);
 927
 928         temp = hv_fetch(href, "HANDLE", 6, 1);
 929         point = newSVsv(*temp);
 930
 931         PUTBACK;
 932         FREETMPS;
 933         LEAVE;
 934
 935         hv_undef(href);
 936         rr->errcode = SvIV(err_code);
 937         rr->hits = SvIV(hits);
 938
 939         ptr = SvPV(err_string, len);
 940         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 941         strcpy(ODR_errstr, ptr);
 942         rr->errstring = ODR_errstr;
 943 /*      wrbuf_free(oid_dotted, 1);*/
 944         zhandle->handle = point;
 945         handle = zhandle;
 946         sv_free(err_code);
 947         sv_free(err_string);
 948         sv_free(hits);
 949         sv_free( (SV*) href);
 950
 951         return 0;
 952 }
 953
 954
 955 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 956 {
 957         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 958         return 0;
 959 }
 960
 961
 962 int bend_delete(void *handle, bend_delete_rr *rr)
 963 {
 964         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 965         return 0;
 966 }
 967
 968
 969 int bend_scan(void *handle, bend_scan_rr *rr)
 970 {
 971         HV *href;
 972         AV *aref;
 973         AV *list;
 974         AV *entries;
 975         HV *scan_item;
 976         struct scan_entry *scan_list;
 977         struct scan_entry *buffer;
 978         int *step_size = rr->step_size;
 979         int i;
 980         char **basenames;
 981         SV **temp;
 982         SV *err_code = sv_newmortal();
 983         SV *err_str = sv_newmortal();
 984         SV *point = sv_newmortal();
 985         SV *status = sv_newmortal();
 986         SV *number = sv_newmortal();
 987         char *ptr;
 988         char *ODR_errstr;
 989         STRLEN len;
 990         int term_len;
 991         SV *term_tmp;
 992         SV *entries_ref;
 993
 994         Zfront_handle *zhandle = (Zfront_handle *)handle;
 995
 996         dSP;
 997         ENTER;
 998         SAVETMPS;
 999         href = newHV();
1000         list = newAV();
1001         if (rr->term->term->which == Z_Term_general)
1002         {
1003                 term_len = rr->term->term->u.general->len;
1004                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1005         } else {
1006                 rr->errcode = 229;      /* Unsupported term type */
1007                 return 0;
1008         }
1009         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1010         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1011         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1012         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1013         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1014         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1015         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1016         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1017         aref = newAV();
1018         basenames = rr->basenames;
1019         for (i = 0; i < rr->num_bases; i++)
1020         {
1021                 av_push(aref, newSVpv(*basenames++, 0));
1022         }
1023         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1024
1025         PUSHMARK(sp);
1026
1027         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1028
1029         PUTBACK;
1030
1031         perl_call_sv(scan_ref, G_SCALAR | G_DISCARD);
1032
1033         SPAGAIN;
1034
1035         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1036         err_code = newSVsv(*temp);
1037
1038         temp = hv_fetch(href, "ERR_STR", 7, 1);
1039         err_str = newSVsv(*temp);
1040
1041         temp = hv_fetch(href, "HANDLE", 6, 1);
1042         point = newSVsv(*temp);
1043
1044         temp = hv_fetch(href, "STATUS", 6, 1);
1045         status = newSVsv(*temp);
1046
1047         temp = hv_fetch(href, "NUMBER", 6, 1);
1048         number = newSVsv(*temp);
1049
1050         temp = hv_fetch(href, "ENTRIES", 7, 1);
1051         entries_ref = newSVsv(*temp);
1052
1053         PUTBACK;
1054         FREETMPS;
1055         LEAVE;
1056
1057         ptr = SvPV(err_str, len);
1058         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1059         strcpy(ODR_errstr, ptr);
1060         rr->errstring = ODR_errstr;
1061         rr->errcode = SvIV(err_code);
1062         rr->num_entries = SvIV(number);
1063         rr->status = SvIV(status);
1064         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1065         buffer = scan_list;
1066         entries = (AV *)SvRV(entries_ref);
1067         for (i = 0; i < rr->num_entries; i++)
1068         {
1069                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1070                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1071                 ptr = SvPV(*temp, len);
1072                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1073                 strcpy(buffer->term, ptr);
1074                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1075                 buffer->occurrences = SvIV(*temp);
1076                 buffer++;
1077                 hv_undef(scan_item);
1078         }
1079         rr->entries = scan_list;
1080         zhandle->handle = point;
1081         handle = zhandle;
1082         sv_free(err_code);
1083         sv_free(err_str);
1084         sv_free(status);
1085         sv_free(number);
1086         hv_undef(href);
1087         sv_free((SV *)href);
1088         av_undef(aref);
1089         sv_free((SV *)aref);
1090         av_undef(list);
1091         sv_free((SV *)list);
1092         av_undef(entries);
1093         /*sv_free((SV *)entries);*/
1094         sv_free(entries_ref);
1095
1096         return 0;
1097 }
1098
1099
1100 bend_initresult *bend_init(bend_initrequest *q)
1101 {
1102         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
1103         HV *href;
1104         SV **temp;
1105         SV *id;
1106         SV *name;
1107         SV *ver;
1108         SV *err_str;
1109         SV *status;
1110         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
1111         STRLEN len;
1112         int n;
1113         SV *handle;
1114         /*char *name_ptr;
1115         char *ver_ptr;*/
1116         char *ptr;
1117         char *user = NULL;
1118         char *passwd = NULL;
1119
1120         dSP;
1121         ENTER;
1122         SAVETMPS;
1123
1124         /*q->bend_sort = bend_sort;*/
1125         if (search_ref)
1126         {
1127                 q->bend_search = bend_search;
1128         }
1129         if (present_ref)
1130         {
1131                 q->bend_present = bend_present;
1132         }
1133         /*q->bend_esrequest = bend_esrequest;*/
1134         /*q->bend_delete = bend_delete;*/
1135         if (fetch_ref)
1136         {
1137                 q->bend_fetch = bend_fetch;
1138         }
1139         if (scan_ref)
1140         {
1141                 q->bend_scan = bend_scan;
1142         }
1143         href = newHV();
1144         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1145         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1146         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1147         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1148         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1149         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1150         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1151         if (q->auth) {
1152             if (q->auth->which == Z_IdAuthentication_open) {
1153                 char *openpass = xstrdup (q->auth->u.open);
1154                 char *cp = strchr (openpass, '/');
1155                 if (cp) {
1156                     *cp = '\0';
1157                     user = nmem_strdup (odr_getmem (q->stream), openpass);
1158                     passwd = nmem_strdup (odr_getmem (q->stream), cp + 1);
1159                 }
1160                 xfree(openpass);
1161             }
1162             hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1163             hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1164         }
1165
1166         PUSHMARK(sp);
1167
1168         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1169
1170         PUTBACK;
1171
1172         if (init_ref != NULL)
1173         {
1174                 perl_call_sv(init_ref, G_SCALAR | G_DISCARD);
1175         }
1176
1177         SPAGAIN;
1178
1179         temp = hv_fetch(href, "IMP_ID", 6, 1);
1180         id = newSVsv(*temp);
1181
1182         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1183         name = newSVsv(*temp);
1184
1185         temp = hv_fetch(href, "IMP_VER", 7, 1);
1186         ver = newSVsv(*temp);
1187
1188         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1189         status = newSVsv(*temp);
1190
1191         temp = hv_fetch(href, "HANDLE", 6, 1);
1192         handle= newSVsv(*temp);
1193
1194         hv_undef(href);
1195         PUTBACK;
1196         FREETMPS;
1197         LEAVE;
1198         zhandle->handle = handle;
1199         r->errcode = SvIV(status);
1200         r->handle = zhandle;
1201 #if 0 /* implementation_id support is not yet in mainstream Yaz */
1202         ptr = SvPV(id, len);
1203         q->implementation_id = (char *)xmalloc(len + 1);
1204         strcpy(q->implementation_id, ptr);
1205 #endif
1206         ptr = SvPV(name, len);
1207         q->implementation_name = (char *)xmalloc(len + 1);
1208         strcpy(q->implementation_name, ptr);
1209 /*      q->implementation_name = SvPV(name, len);*/
1210         ptr = SvPV(ver, len);
1211         q->implementation_version = (char *)xmalloc(len + 1);
1212         strcpy(q->implementation_version, ptr);
1213
1214         return r;
1215 }
1216
1217
1218 void bend_close(void *handle)
1219 {
1220         HV *href;
1221         Zfront_handle *zhandle = (Zfront_handle *)handle;
1222         SV **temp;
1223
1224         dSP;
1225         ENTER;
1226         SAVETMPS;
1227
1228         if (close_ref == NULL)
1229         {
1230                 return;
1231         }
1232
1233         href = newHV();
1234         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1235
1236         PUSHMARK(sp);
1237
1238         XPUSHs(sv_2mortal(newRV((SV *)href)));
1239
1240         PUTBACK;
1241
1242         perl_call_sv(close_ref, G_SCALAR | G_DISCARD);
1243
1244         SPAGAIN;
1245
1246         PUTBACK;
1247         FREETMPS;
1248         LEAVE;
1249
1250         xfree(handle);
1251
1252         return;
1253 }
1254
1255
1256 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1257
1258 void
1259 set_init_handler(arg)
1260                 SV *arg
1261         CODE:
1262                 init_ref = newSVsv(arg);
1263
1264
1265 void
1266 set_close_handler(arg)
1267                 SV *arg
1268         CODE:
1269                 close_ref = newSVsv(arg);
1270
1271
1272 void
1273 set_sort_handler(arg)
1274                 SV *arg
1275         CODE:
1276                 sort_ref = newSVsv(arg);
1277
1278 void
1279 set_search_handler(arg)
1280                 SV *arg
1281         CODE:
1282                 search_ref = newSVsv(arg);
1283
1284
1285 void
1286 set_fetch_handler(arg)
1287                 SV *arg
1288         CODE:
1289                 fetch_ref = newSVsv(arg);
1290
1291
1292 void
1293 set_present_handler(arg)
1294                 SV *arg
1295         CODE:
1296                 present_ref = newSVsv(arg);
1297
1298
1299 void
1300 set_esrequest_handler(arg)
1301                 SV *arg
1302         CODE:
1303                 esrequest_ref = newSVsv(arg);
1304
1305
1306 void
1307 set_delete_handler(arg)
1308                 SV *arg
1309         CODE:
1310                 delete_ref = newSVsv(arg);
1311
1312
1313 void
1314 set_scan_handler(arg)
1315                 SV *arg
1316         CODE:
1317                 scan_ref = newSVsv(arg);
1318
1319
1320 int
1321 start_server(...)
1322         PREINIT:
1323                 char **argv;
1324                 char **argv_buf;
1325                 char *ptr;
1326                 int i;
1327                 STRLEN len;
1328         CODE:
1329                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1330                 argv = argv_buf;
1331                 for (i = 0; i < items; i++)
1332                 {
1333                         ptr = SvPV(ST(i), len);
1334                         *argv_buf = (char *)xmalloc(len + 1);
1335                         strcpy(*argv_buf++, ptr);
1336                 }
1337                 *argv_buf = NULL;
1338
1339                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1340         OUTPUT:
1341                 RETVAL
1342
1343
1344 int
1345 ScanSuccess()
1346         CODE:
1347                 RETVAL = BEND_SCAN_SUCCESS;
1348         OUTPUT:
1349                 RETVAL
1350
1351 int
1352 ScanPartial()
1353         CODE:
1354                 RETVAL = BEND_SCAN_PARTIAL;
1355         OUTPUT:
1356                 RETVAL
1357
1358