SimpleServer.xs

   1 /*
   2  * $Id: SimpleServer.xs,v 1.43 2006-04-21 07:30:15 sondberg Exp $
   3  * ----------------------------------------------------------------------
   4  *
   5  * Copyright (c) 2000-2004, Index Data.
   6  *
   7  * Permission to use, copy, modify, distribute, and sell this software and
   8  * its documentation, in whole or in part, for any purpose, is hereby granted,
   9  * provided that:
  10  *
  11  * 1. This copyright and permission notice appear in all copies of the
  12  * software and its documentation. Notices of copyright or attribution
  13  * which appear at the beginning of any file must remain unchanged.
  14  *
  15  * 2. The name of Index Data or the individual authors may not be used to
  16  * endorse or promote products derived from this software without specific
  17  * prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
  20  * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  21  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  22  * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  23  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
  24  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
  25  * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  26  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  27  * OF THIS SOFTWARE.
  28  */
  29
  30 #include "EXTERN.h"
  31 #include "perl.h"
  32 #include "proto.h"
  33 #include "embed.h"
  34 #include "XSUB.h"
  35 #include <yaz/backend.h>
  36 #include <yaz/log.h>
  37 #include <yaz/wrbuf.h>
  38 #include <stdio.h>
  39 #ifdef WIN32
  40 #else
  41 #include <unistd.h>
  42 #endif
  43 #include <stdlib.h>
  44 #include <ctype.h>
  45 #define GRS_MAX_FIELDS 500
  46 #ifdef ASN_COMPILED
  47 #include <yaz/ill.h>
  48 #endif
  49 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  50 #define sv_undef PL_sv_undef
  51 #endif
  52
  53 NMEM_MUTEX simpleserver_mutex;
  54
  55 typedef struct {
  56         SV *handle;
  57
  58         SV *init_ref;
  59         SV *close_ref;
  60         SV *sort_ref;
  61         SV *search_ref;
  62         SV *fetch_ref;
  63         SV *present_ref;
  64         SV *esrequest_ref;
  65         SV *delete_ref;
  66         SV *scan_ref;
  67         NMEM nmem;
  68         int stop_flag;  /* is used to stop server prematurely .. */
  69 } Zfront_handle;
  70
  71 #define ENABLE_STOP_SERVER 0
  72
  73 SV *init_ref = NULL;
  74 SV *close_ref = NULL;
  75 SV *sort_ref = NULL;
  76 SV *search_ref = NULL;
  77 SV *fetch_ref = NULL;
  78 SV *present_ref = NULL;
  79 SV *esrequest_ref = NULL;
  80 SV *delete_ref = NULL;
  81 SV *scan_ref = NULL;
  82 PerlInterpreter *root_perl_context;
  83 int MAX_OID = 15;
  84
  85 #define GRS_BUF_SIZE 512
  86
  87 CV * simpleserver_sv2cv(SV *handler) {
  88     STRLEN len;
  89     char *buf;
  90
  91     if (SvPOK(handler)) {
  92         CV *ret;
  93         buf = SvPV( handler, len);
  94         if ( !( ret = perl_get_cv(buf, FALSE ) ) ) {
  95             fprintf( stderr, "simpleserver_sv2cv: No such handler '%s'\n\n", buf );
  96             exit(1);
  97         }
  98
  99         return ret;
 100     } else {
 101         return (CV *) handler;
 102     }
 103 }
 104
 105 /* debugging routine to check for destruction of Perl interpreters */
 106 #ifdef USE_ITHREADS
 107 void tst_clones(void)
 108 {
 109     int i;
 110     PerlInterpreter *parent = PERL_GET_CONTEXT;
 111     for (i = 0; i<5000; i++)
 112     {
 113         PerlInterpreter *perl_interp;
 114
 115         PERL_SET_CONTEXT(parent);
 116         PL_perl_destruct_level = 2;
 117         perl_interp = perl_clone(parent, CLONEf_CLONE_HOST);
 118         PL_perl_destruct_level = 2;
 119         PERL_SET_CONTEXT(perl_interp);
 120         perl_destruct(perl_interp);
 121         perl_free(perl_interp);
 122     }
 123     exit (0);
 124 }
 125 #endif
 126
 127 int simpleserver_clone(void) {
 128 #ifdef USE_ITHREADS
 129      nmem_mutex_enter(simpleserver_mutex);
 130      if (1)
 131      {
 132          PerlInterpreter *current = PERL_GET_CONTEXT;
 133
 134          /* if current is unset, then we're in a new thread with
 135           * no Perl interpreter for it. So we must create one .
 136           * This will only happen when threaded is used..
 137           */
 138          if (!current) {
 139              PerlInterpreter *perl_interp;
 140              PERL_SET_CONTEXT( root_perl_context );
 141              perl_interp = perl_clone(root_perl_context, CLONEf_CLONE_HOST);
 142              PERL_SET_CONTEXT( perl_interp );
 143          }
 144      }
 145      nmem_mutex_leave(simpleserver_mutex);
 146 #endif
 147      return 0;
 148 }
 149
 150
 151 void simpleserver_free(void) {
 152     nmem_mutex_enter(simpleserver_mutex);
 153     if (1)
 154     {
 155         PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 156
 157         /* If current Perl Interp is different from root interp, then
 158          * we're in threaded mode and we must destroy..
 159          */
 160         if (current_interp != root_perl_context) {
 161             PL_perl_destruct_level = 2;
 162             PERL_SET_CONTEXT(current_interp);
 163             perl_destruct(current_interp);
 164             perl_free(current_interp);
 165         }
 166     }
 167     nmem_mutex_leave(simpleserver_mutex);
 168 }
 169
 170
 171 Z_GenericRecord *read_grs1(char *str, ODR o)
 172 {
 173         int type, ivalue;
 174         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 175         char value[GRS_BUF_SIZE+1];
 176         Z_GenericRecord *r = 0;
 177
 178         original = str;
 179         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 180         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 181         r->num_elements = 0;
 182
 183         for (;;)
 184         {
 185                 Z_TaggedElement *t;
 186                 Z_ElementData *c;
 187                 int len;
 188
 189                 ptr = strchr(str, '\n');
 190                 if (!ptr) {
 191                         return r;
 192                 }
 193                 len = ptr - str;
 194                 if (len > GRS_BUF_SIZE) {
 195                     yaz_log(LOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 196                     len = GRS_BUF_SIZE;
 197                 }
 198                 strncpy(line, str, len);
 199                 line[len] = 0;
 200                 buf = line;
 201                 str = ptr + 1;
 202                 while (*buf && isspace(*buf))
 203                         buf++;
 204                 if (*buf == '}') {
 205                         memmove(original, str, strlen(str));
 206                         return r;
 207                 }
 208                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 209                 {
 210                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 211                         return r;
 212                 }
 213                 if (!type && *value == '0')
 214                         return r;
 215                 if (!(buf = strchr(buf, ')')))
 216                         return r;
 217                 buf++;
 218                 while (*buf && isspace(*buf))
 219                         buf++;
 220                 if (r->num_elements >= GRS_MAX_FIELDS)
 221                 {
 222                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 223                         exit(0);
 224                 }
 225                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 226                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 227                 *t->tagType = type;
 228                 t->tagValue = (Z_StringOrNumeric *)
 229                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 230                 if ((ivalue = atoi(value)))
 231                 {
 232                         t->tagValue->which = Z_StringOrNumeric_numeric;
 233                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 234                         *t->tagValue->u.numeric = ivalue;
 235                 }
 236                 else
 237                 {
 238                         t->tagValue->which = Z_StringOrNumeric_string;
 239                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 240                         strcpy(t->tagValue->u.string, value);
 241                 }
 242                 t->tagOccurrence = 0;
 243                 t->metaData = 0;
 244                 t->appliedVariant = 0;
 245                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 246                 if (*buf == '{')
 247                 {
 248                         c->which = Z_ElementData_subtree;
 249                         c->u.subtree = read_grs1(str, o);
 250                 }
 251                 else
 252                 {
 253                         c->which = Z_ElementData_string;
 254                         c->u.string = odr_strdup(o, buf);
 255                 }
 256                 r->num_elements++;
 257         }
 258 }
 259
 260
 261
 262
 263 static void oid2str(Odr_oid *o, WRBUF buf)
 264 {
 265     for (; *o >= 0; o++) {
 266         char ibuf[16];
 267         sprintf(ibuf, "%d", *o);
 268         wrbuf_puts(buf, ibuf);
 269         if (o[1] > 0)
 270             wrbuf_putc(buf, '.');
 271     }
 272 }
 273
 274
 275 WRBUF zquery2pquery(Z_Query *q)
 276 {
 277     WRBUF buf = wrbuf_alloc();
 278
 279     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 280         return 0;
 281     yaz_rpnquery_to_wrbuf(buf, q->u.type_1);
 282     return buf;
 283 }
 284
 285
 286 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 287 #include <stdarg.h>
 288 void fatal(char *fmt, ...)
 289 {
 290     va_list ap;
 291
 292     fprintf(stderr, "FATAL (SimpleServer): ");
 293     va_start(ap, fmt);
 294     vfprintf(stderr, fmt, ap);
 295     va_end(ap);
 296     fprintf(stderr, "\n");
 297     abort();
 298 }
 299
 300
 301 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 302 /*
 303  * Creates a new Perl object of type `class'; the newly-created scalar
 304  * that is a reference to the blessed thingy `referent' is returned.
 305  */
 306 static SV *newObject(char *class, SV *referent)
 307 {
 308     HV *stash;
 309     SV *sv;
 310
 311     sv = newRV_noinc((SV*) referent);
 312     stash = gv_stashpv(class, 0);
 313     if (stash == 0)
 314         fatal("attempt to create object of undefined class '%s'", class);
 315     /*assert(stash != 0);*/
 316     sv_bless(sv, stash);
 317     return sv;
 318 }
 319
 320
 321 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 322 static void setMember(HV *hv, char *name, SV *val)
 323 {
 324     /* We don't increment `val's reference count -- I think this is
 325      * right because it's created with a refcount of 1, and in fact
 326      * the reference via this hash is the only reference to it in
 327      * general.
 328      */
 329     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 330         fatal("couldn't store member in hash");
 331 }
 332
 333
 334 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 335 static SV *translateOID(Odr_oid *x)
 336 {
 337     /* Yaz represents an OID by an int array terminated by a negative
 338      * value, typically -1; we represent it as a reference to a
 339      * blessed scalar string of "."-separated elements.
 340      */
 341     char buf[1000];
 342     int i;
 343
 344     *buf = '\0';
 345     for (i = 0; x[i] >= 0; i++) {
 346         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 347         if (x[i+1] >- 0)
 348             strcat(buf, ".");
 349     }
 350
 351     /*
 352      * ### We'd like to return a blessed scalar (string) here, but of
 353      *  course you can't do that in Perl: only references can be
 354      *  blessed, so we'd have to return a _reference_ to a string, and
 355      *  bless _that_.  Better to do without the blessing, I think.
 356      */
 357     if (1) {
 358         return newSVpv(buf, 0);
 359     } else {
 360         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 361     }
 362 }
 363
 364
 365 static SV *rpn2perl(Z_RPNStructure *s)
 366 {
 367     SV *sv;
 368     HV *hv;
 369     AV *av;
 370
 371     switch (s->which) {
 372     case Z_RPNStructure_simple: {
 373         Z_Operand *o = s->u.simple;
 374         Z_AttributesPlusTerm *at;
 375         if (o->which == Z_Operand_resultSetId) {
 376             SV *sv2;
 377             /* This code causes a SIGBUS on my machine, and I have no
 378                idea why.  It seems as clear as day to me */
 379             char *rsid = (char*) o->u.resultSetId;
 380             printf("Encoding resultSetId '%s'\n", rsid);
 381             sv = newObject("Net::Z3950::RPN::RSID", (SV*) (hv = newHV()));
 382             printf("Made sv=0x%lx, hv=0x%lx\n",
 383                    (unsigned long) sv ,(unsigned long) hv);
 384             sv2 = newSVpv(rsid, strlen(rsid));
 385             setMember(hv, "id", sv2);
 386             printf("Set hv{id} to 0x%lx\n", (unsigned long) sv2);
 387             return sv;
 388         }
 389         if (o->which != Z_Operand_APT)
 390             fatal("can't handle RPN simples other than APT and RSID");
 391         at = o->u.attributesPlusTerm;
 392         if (at->term->which != Z_Term_general)
 393             fatal("can't handle RPN terms other than general");
 394
 395         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 396         if (at->attributes) {
 397             int i;
 398             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 399                                   (SV*) (av = newAV()));
 400             for (i = 0; i < at->attributes->num_attributes; i++) {
 401                 Z_AttributeElement *elem = at->attributes->attributes[i];
 402                 HV *hv2;
 403                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 404                                     (SV*) (hv2 = newHV()));
 405                 if (elem->attributeSet)
 406                     setMember(hv2, "attributeSet",
 407                               translateOID(elem->attributeSet));
 408                 setMember(hv2, "attributeType",
 409                           newSViv(*elem->attributeType));
 410                 assert(elem->which == Z_AttributeValue_numeric);
 411                 setMember(hv2, "attributeValue",
 412                           newSViv(*elem->value.numeric));
 413                 av_push(av, tmp);
 414             }
 415             setMember(hv, "attributes", attrs);
 416         }
 417         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 418                                       at->term->u.general->len));
 419         return sv;
 420     }
 421     case Z_RPNStructure_complex: {
 422         SV *tmp;
 423         Z_Complex *c = s->u.complex;
 424         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 425         switch (c->roperator->which) {
 426         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 427         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 428         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 429         case Z_Operator_prox:    fatal("proximity not yet supported");
 430         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 431         }
 432         sv = newObject(type, (SV*) (av = newAV()));
 433         if ((tmp = rpn2perl(c->s1)) == 0)
 434             return 0;
 435         av_push(av, tmp);
 436         if ((tmp = rpn2perl(c->s2)) == 0)
 437             return 0;
 438         av_push(av, tmp);
 439         return sv;
 440     }
 441     default: fatal("unknown RPN node type %d", (int) s->which);
 442     }
 443
 444     return 0;
 445 }
 446
 447
 448 /* Decode the Z_SortKeySpec struct and store the whole thing in a perl hash */
 449 int simpleserver_SortKeySpecToHash (HV *sort_spec, Z_SortKeySpec *spec)
 450 {
 451     Z_SortElement *element = spec->sortElement;
 452
 453     hv_store(sort_spec, "RELATION", 8, newSViv(*spec->sortRelation), 0);
 454     hv_store(sort_spec, "CASE", 4, newSViv(*spec->caseSensitivity), 0);
 455     hv_store(sort_spec, "MISSING", 7, newSViv(spec->which), 0);
 456
 457     if (element->which == Z_SortElement_generic)
 458     {
 459         Z_SortKey *key = element->u.generic;
 460
 461         if (key->which == Z_SortKey_sortField)
 462         {
 463             hv_store(sort_spec, "SORTFIELD", 9,
 464                      newSVpv((char *) key->u.sortField, 0), 0);
 465         }
 466         else if (key->which == Z_SortKey_elementSpec)
 467         {
 468             Z_Specification *zspec = key->u.elementSpec;
 469
 470             hv_store(sort_spec, "ELEMENTSPEC_TYPE", 16,
 471                      newSViv(zspec->which), 0);
 472
 473             if (zspec->which == Z_Schema_oid)
 474             {
 475                 WRBUF elementSpec = wrbuf_alloc();
 476
 477                 oid2str(zspec->schema.oid, elementSpec);
 478                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 479                          newSVpv(elementSpec->buf, elementSpec->pos), 0);
 480                 wrbuf_free(elementSpec, 1);
 481             }
 482             else if (zspec->which == Z_Schema_uri)
 483             {
 484                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 485                          newSVpv((char *) zspec->schema.uri, 0), 0);
 486             }
 487         }
 488         else if (key->which == Z_SortKey_sortAttributes)
 489         {
 490             Z_SortAttributes *attr = key->u.sortAttributes;
 491
 492             return 0;
 493         }
 494         else
 495         {
 496             return 0;
 497         }
 498     }
 499     else
 500     {
 501         return 0;
 502     }
 503
 504     return 1;
 505 }
 506
 507
 508 static SV *zquery2perl(Z_Query *q)
 509 {
 510     SV *sv;
 511     HV *hv;
 512
 513     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 514         return 0;
 515     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 516     if (q->u.type_1->attributeSetId)
 517         setMember(hv, "attributeSet",
 518                   translateOID(q->u.type_1->attributeSetId));
 519     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 520     return sv;
 521 }
 522
 523
 524 int bend_sort(void *handle, bend_sort_rr *rr)
 525 {
 526         HV *href;
 527         AV *aref;
 528         AV *sort_seq;
 529         SV **temp;
 530         SV *err_code;
 531         SV *err_str;
 532         SV *status;
 533         SV *point;
 534         STRLEN len;
 535         char *ptr;
 536         char *ODR_err_str;
 537         char **input_setnames;
 538         Zfront_handle *zhandle = (Zfront_handle *)handle;
 539         Z_SortKeySpecList *sort_spec = rr->sort_sequence;
 540         int i;
 541
 542         dSP;
 543         ENTER;
 544         SAVETMPS;
 545
 546         aref = newAV();
 547         input_setnames = rr->input_setnames;
 548         for (i = 0; i < rr->num_input_setnames; i++)
 549         {
 550             av_push(aref, newSVpv(*input_setnames++, 0));
 551         }
 552
 553         sort_seq = newAV();
 554         for (i = 0; i < sort_spec->num_specs; i++)
 555         {
 556             Z_SortKeySpec *spec = *sort_spec->specs++;
 557             HV *sort_spec = newHV();
 558
 559             if ( simpleserver_SortKeySpecToHash(sort_spec, spec) )
 560                 av_push(sort_seq, newRV( sv_2mortal( (SV*) sort_spec ) ));
 561             else
 562             {
 563                 rr->errcode = 207;
 564                 return 0;
 565             }
 566         }
 567
 568         href = newHV();
 569         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 570         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 571         hv_store(href, "SEQUENCE", 8, newRV( (SV*) sort_seq), 0);
 572         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 573         hv_store(href, "STATUS", 6, newSViv(0), 0);
 574         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 575         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 576
 577         PUSHMARK(sp);
 578
 579         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 580
 581         PUTBACK;
 582
 583         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 584
 585         SPAGAIN;
 586
 587         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 588         err_code = newSVsv(*temp);
 589
 590         temp = hv_fetch(href, "ERR_STR", 7, 1);
 591         err_str = newSVsv(*temp);
 592
 593         temp = hv_fetch(href, "STATUS", 6, 1);
 594         status = newSVsv(*temp);
 595
 596         temp = hv_fetch(href, "HANDLE", 6, 1);
 597         point = newSVsv(*temp);
 598
 599         hv_undef(href);
 600         av_undef(aref);
 601         av_undef(sort_seq);
 602
 603         sv_free( (SV*) aref);
 604         sv_free( (SV*) href);
 605         sv_free( (SV*) sort_seq);
 606
 607         rr->errcode = SvIV(err_code);
 608         rr->sort_status = SvIV(status);
 609
 610         ptr = SvPV(err_str, len);
 611         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 612         strcpy(ODR_err_str, ptr);
 613         rr->errstring = ODR_err_str;
 614         zhandle->handle = point;
 615
 616         sv_free(err_code);
 617         sv_free(err_str);
 618         sv_free(status);
 619
 620         PUTBACK;
 621         FREETMPS;
 622         LEAVE;
 623
 624         return 0;
 625 }
 626
 627
 628 int bend_search(void *handle, bend_search_rr *rr)
 629 {
 630         HV *href;
 631         AV *aref;
 632         SV **temp;
 633         char *ODR_errstr;
 634         STRLEN len;
 635         int i;
 636         char **basenames;
 637         WRBUF query;
 638         char *ptr;
 639         SV *point;
 640         Zfront_handle *zhandle = (Zfront_handle *)handle;
 641         CV* handler_cv = 0;
 642         SV *rpnSV;
 643
 644         dSP;
 645         ENTER;
 646         SAVETMPS;
 647
 648         aref = newAV();
 649         basenames = rr->basenames;
 650         for (i = 0; i < rr->num_bases; i++)
 651         {
 652                 av_push(aref, newSVpv(*basenames++, 0));
 653         }
 654 #if ENABLE_STOP_SERVER
 655         if (rr->num_bases == 1 && !strcmp(rr->basenames[0], "XXstop"))
 656         {
 657                 zhandle->stop_flag = 1;
 658         }
 659 #endif
 660         href = newHV();
 661         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 662         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 663         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 664         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 665         hv_store(href, "HITS", 4, newSViv(0), 0);
 666         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 667         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 668         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 669         if ((rpnSV = zquery2perl(rr->query)) != 0) {
 670             hv_store(href, "RPN", 3, rpnSV, 0);
 671         }
 672         query = zquery2pquery(rr->query);
 673         if (query)
 674         {
 675                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 676         }
 677         else if (rr->query->which == Z_Query_type_104 &&
 678                  rr->query->u.type_104->which == Z_External_CQL) {
 679             hv_store(href, "CQL", 3,
 680                      newSVpv(rr->query->u.type_104->u.cql, 0), 0);
 681         }
 682         else
 683         {
 684                 rr->errcode = 108;
 685                 return 0;
 686         }
 687         PUSHMARK(sp);
 688
 689         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 690
 691         PUTBACK;
 692
 693         handler_cv = simpleserver_sv2cv( search_ref );
 694         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 695
 696         SPAGAIN;
 697
 698         temp = hv_fetch(href, "HITS", 4, 1);
 699         rr->hits = SvIV(*temp);
 700
 701         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 702         rr->errcode = SvIV(*temp);
 703
 704         temp = hv_fetch(href, "ERR_STR", 7, 1);
 705         ptr = SvPV(*temp, len);
 706         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 707         strcpy(ODR_errstr, ptr);
 708         rr->errstring = ODR_errstr;
 709
 710         temp = hv_fetch(href, "HANDLE", 6, 1);
 711         point = newSVsv(*temp);
 712
 713         hv_undef(href);
 714         av_undef(aref);
 715
 716         zhandle->handle = point;
 717         sv_free( (SV*) aref);
 718         sv_free( (SV*) href);
 719         if (query)
 720             wrbuf_free(query, 1);
 721         PUTBACK;
 722         FREETMPS;
 723         LEAVE;
 724         return 0;
 725 }
 726
 727
 728 /* ### this is worryingly similar to oid2str() */
 729 WRBUF oid2dotted(int *oid)
 730 {
 731
 732         WRBUF buf = wrbuf_alloc();
 733         int dot = 0;
 734
 735         for (; *oid != -1 ; oid++)
 736         {
 737                 char ibuf[16];
 738                 if (dot)
 739                 {
 740                         wrbuf_putc(buf, '.');
 741                 }
 742                 else
 743                 {
 744                         dot = 1;
 745                 }
 746                 sprintf(ibuf, "%d", *oid);
 747                 wrbuf_puts(buf, ibuf);
 748         }
 749         return buf;
 750 }
 751
 752
 753 int dotted2oid(char *dotted, int *buffer)
 754 {
 755         int *oid;
 756         char ibuf[16];
 757         char *ptr;
 758         int n = 0;
 759
 760         ptr = ibuf;
 761         oid = buffer;
 762         while (*dotted)
 763         {
 764                 if (*dotted == '.')
 765                 {
 766                         n++;
 767                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 768                         {
 769                                 *oid = -1;
 770                                 return -1;
 771                         }
 772                         *ptr = 0;
 773                         sscanf(ibuf, "%d", oid++);
 774                         ptr = ibuf;
 775                         dotted++;
 776
 777                 }
 778                 else
 779                 {
 780                         *ptr++ = *dotted++;
 781                 }
 782         }
 783         if (n < MAX_OID)
 784         {
 785                 *ptr = 0;
 786                 sscanf(ibuf, "%d", oid++);
 787         }
 788         *oid = -1;
 789         return 0;
 790 }
 791
 792
 793 int bend_fetch(void *handle, bend_fetch_rr *rr)
 794 {
 795         HV *href;
 796         SV **temp;
 797         SV *basename;
 798         SV *record;
 799         SV *last;
 800         SV *err_code;
 801         SV *err_string;
 802         SV *sur_flag;
 803         SV *point;
 804         SV *rep_form;
 805         char *ptr;
 806         char *ODR_record;
 807         char *ODR_basename;
 808         char *ODR_errstr;
 809         int *ODR_oid_buf;
 810         oident *oid;
 811         WRBUF oid_dotted;
 812         Zfront_handle *zhandle = (Zfront_handle *)handle;
 813         CV* handler_cv = 0;
 814
 815         Z_RecordComposition *composition;
 816         Z_ElementSetNames *simple;
 817         STRLEN length;
 818
 819         dSP;
 820         ENTER;
 821         SAVETMPS;
 822
 823         rr->errcode = 0;
 824         href = newHV();
 825         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 826         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 827         if (rr->request_format_raw != 0) {
 828             oid_dotted = oid2dotted(rr->request_format_raw);
 829         } else {
 830             /* Probably an SRU request: assume XML is required */
 831             oid_dotted = wrbuf_alloc();
 832             wrbuf_puts(oid_dotted, "1.2.840.10003.5.109.10");
 833         }
 834         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 835         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 836         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 837         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 838         hv_store(href, "LAST", 4, newSViv(0), 0);
 839         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 840         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 841         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 842         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 843         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 844         if (rr->comp)
 845         {
 846                 composition = rr->comp;
 847                 if (composition->which == Z_RecordComp_simple)
 848                 {
 849                         simple = composition->u.simple;
 850                         if (simple->which == Z_ElementSetNames_generic)
 851                         {
 852                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 853                         }
 854                         else
 855                         {
 856                                 rr->errcode = 26;
 857                         }
 858                 }
 859                 else
 860                 {
 861                         /* This is where we end up in the case of
 862                          * SRU.  Since record composition ("element
 863                          * sets") are meaningless in SRU anyway, we
 864                          * just skip this.
 865                          */
 866                 }
 867         }
 868
 869         PUSHMARK(sp);
 870
 871         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 872
 873         PUTBACK;
 874
 875         handler_cv = simpleserver_sv2cv( fetch_ref );
 876         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 877
 878         SPAGAIN;
 879
 880         temp = hv_fetch(href, "BASENAME", 8, 1);
 881         basename = newSVsv(*temp);
 882
 883         temp = hv_fetch(href, "RECORD", 6, 1);
 884         record = newSVsv(*temp);
 885
 886         temp = hv_fetch(href, "LAST", 4, 1);
 887         last = newSVsv(*temp);
 888
 889         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 890         err_code = newSVsv(*temp);
 891
 892         temp = hv_fetch(href, "ERR_STR", 7, 1),
 893         err_string = newSVsv(*temp);
 894
 895         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 896         sur_flag = newSVsv(*temp);
 897
 898         temp = hv_fetch(href, "REP_FORM", 8, 1);
 899         rep_form = newSVsv(*temp);
 900
 901         temp = hv_fetch(href, "HANDLE", 6, 1);
 902         point = newSVsv(*temp);
 903
 904
 905         hv_undef(href);
 906
 907         ptr = SvPV(basename, length);
 908         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 909         strcpy(ODR_basename, ptr);
 910         rr->basename = ODR_basename;
 911
 912         ptr = SvPV(rep_form, length);
 913         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 914         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 915         {
 916                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 917         }
 918         rr->output_format_raw = ODR_oid_buf;
 919
 920         ptr = SvPV(record, length);
 921         oid = oid_getentbyoid(ODR_oid_buf);
 922         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 923         {
 924                 rr->record = (char *) read_grs1(ptr, rr->stream);
 925                 rr->len = -1;
 926         }
 927         else
 928         {
 929                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 930                 strcpy(ODR_record, ptr);
 931                 rr->record = ODR_record;
 932                 rr->len = length;
 933         }
 934         zhandle->handle = point;
 935         handle = zhandle;
 936         rr->last_in_set = SvIV(last);
 937
 938         if (!(rr->errcode))
 939         {
 940                 rr->errcode = SvIV(err_code);
 941                 ptr = SvPV(err_string, length);
 942                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 943                 strcpy(ODR_errstr, ptr);
 944                 rr->errstring = ODR_errstr;
 945         }
 946         rr->surrogate_flag = SvIV(sur_flag);
 947
 948         wrbuf_free(oid_dotted, 1);
 949         sv_free((SV*) href);
 950         sv_free(basename);
 951         sv_free(record);
 952         sv_free(last);
 953         sv_free(err_string);
 954         sv_free(err_code),
 955         sv_free(sur_flag);
 956         sv_free(rep_form);
 957
 958         PUTBACK;
 959         FREETMPS;
 960         LEAVE;
 961
 962         return 0;
 963 }
 964
 965
 966 int bend_present(void *handle, bend_present_rr *rr)
 967 {
 968         HV *href;
 969         SV **temp;
 970         SV *err_code;
 971         SV *err_string;
 972         SV *hits;
 973         SV *point;
 974         STRLEN len;
 975         Z_RecordComposition *composition;
 976         Z_ElementSetNames *simple;
 977         char *ODR_errstr;
 978         char *ptr;
 979         Zfront_handle *zhandle = (Zfront_handle *)handle;
 980         CV* handler_cv = 0;
 981
 982 /*      WRBUF oid_dotted; */
 983
 984         dSP;
 985         ENTER;
 986         SAVETMPS;
 987
 988         href = newHV();
 989         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 990         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 991         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 992         hv_store(href, "START", 5, newSViv(rr->start), 0);
 993         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 994         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 995         /*oid_dotted = oid2dotted(rr->request_format_raw);
 996         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 997         hv_store(href, "HITS", 4, newSViv(0), 0);
 998         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 999         if (rr->comp)
1000         {
1001                 composition = rr->comp;
1002                 if (composition->which == Z_RecordComp_simple)
1003                 {
1004                         simple = composition->u.simple;
1005                         if (simple->which == Z_ElementSetNames_generic)
1006                         {
1007                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
1008                         }
1009                         else
1010                         {
1011                                 rr->errcode = 26;
1012                                 return 0;
1013                         }
1014                 }
1015                 else
1016                 {
1017                         rr->errcode = 26;
1018                         return 0;
1019                 }
1020         }
1021
1022         PUSHMARK(sp);
1023
1024         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1025
1026         PUTBACK;
1027
1028         handler_cv = simpleserver_sv2cv( present_ref );
1029         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1030
1031         SPAGAIN;
1032
1033         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1034         err_code = newSVsv(*temp);
1035
1036         temp = hv_fetch(href, "ERR_STR", 7, 1);
1037         err_string = newSVsv(*temp);
1038
1039         temp = hv_fetch(href, "HITS", 4, 1);
1040         hits = newSVsv(*temp);
1041
1042         temp = hv_fetch(href, "HANDLE", 6, 1);
1043         point = newSVsv(*temp);
1044
1045         PUTBACK;
1046         FREETMPS;
1047         LEAVE;
1048
1049         hv_undef(href);
1050         rr->errcode = SvIV(err_code);
1051         rr->hits = SvIV(hits);
1052
1053         ptr = SvPV(err_string, len);
1054         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1055         strcpy(ODR_errstr, ptr);
1056         rr->errstring = ODR_errstr;
1057 /*      wrbuf_free(oid_dotted, 1);*/
1058         zhandle->handle = point;
1059         handle = zhandle;
1060         sv_free(err_code);
1061         sv_free(err_string);
1062         sv_free(hits);
1063         sv_free( (SV*) href);
1064
1065         return 0;
1066 }
1067
1068
1069 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
1070 {
1071         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
1072         return 0;
1073 }
1074
1075
1076 int bend_delete(void *handle, bend_delete_rr *rr)
1077 {
1078         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
1079         return 0;
1080 }
1081
1082
1083 int bend_scan(void *handle, bend_scan_rr *rr)
1084 {
1085         HV *href;
1086         AV *aref;
1087         AV *list;
1088         AV *entries;
1089         HV *scan_item;
1090         struct scan_entry *scan_list;
1091         struct scan_entry *buffer;
1092         int *step_size = rr->step_size;
1093         int i;
1094         char **basenames;
1095         SV **temp;
1096         SV *err_code = sv_newmortal();
1097         SV *err_str = sv_newmortal();
1098         SV *point = sv_newmortal();
1099         SV *status = sv_newmortal();
1100         SV *number = sv_newmortal();
1101         char *ptr;
1102         char *ODR_errstr;
1103         STRLEN len;
1104         int term_len;
1105         SV *entries_ref;
1106         Zfront_handle *zhandle = (Zfront_handle *)handle;
1107         CV* handler_cv = 0;
1108
1109         dSP;
1110         ENTER;
1111         SAVETMPS;
1112         href = newHV();
1113         list = newAV();
1114         if (rr->term->term->which == Z_Term_general)
1115         {
1116                 term_len = rr->term->term->u.general->len;
1117                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1118         } else {
1119                 rr->errcode = 229;      /* Unsupported term type */
1120                 return 0;
1121         }
1122         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1123         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1124         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1125         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1126         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1127         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1128         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1129         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1130         aref = newAV();
1131         basenames = rr->basenames;
1132         for (i = 0; i < rr->num_bases; i++)
1133         {
1134                 av_push(aref, newSVpv(*basenames++, 0));
1135         }
1136         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1137
1138         PUSHMARK(sp);
1139
1140         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1141
1142         PUTBACK;
1143
1144         handler_cv = simpleserver_sv2cv( scan_ref );
1145         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1146
1147         SPAGAIN;
1148
1149         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1150         err_code = newSVsv(*temp);
1151
1152         temp = hv_fetch(href, "ERR_STR", 7, 1);
1153         err_str = newSVsv(*temp);
1154
1155         temp = hv_fetch(href, "HANDLE", 6, 1);
1156         point = newSVsv(*temp);
1157
1158         temp = hv_fetch(href, "STATUS", 6, 1);
1159         status = newSVsv(*temp);
1160
1161         temp = hv_fetch(href, "NUMBER", 6, 1);
1162         number = newSVsv(*temp);
1163
1164         temp = hv_fetch(href, "ENTRIES", 7, 1);
1165         entries_ref = newSVsv(*temp);
1166
1167         PUTBACK;
1168         FREETMPS;
1169         LEAVE;
1170
1171         ptr = SvPV(err_str, len);
1172         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1173         strcpy(ODR_errstr, ptr);
1174         rr->errstring = ODR_errstr;
1175         rr->errcode = SvIV(err_code);
1176         rr->num_entries = SvIV(number);
1177         rr->status = SvIV(status);
1178         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1179         buffer = scan_list;
1180         entries = (AV *)SvRV(entries_ref);
1181         for (i = 0; i < rr->num_entries; i++)
1182         {
1183                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1184                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1185                 ptr = SvPV(*temp, len);
1186                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1187                 strcpy(buffer->term, ptr);
1188                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1189                 buffer->occurrences = SvIV(*temp);
1190                 buffer++;
1191                 hv_undef(scan_item);
1192         }
1193         rr->entries = scan_list;
1194         zhandle->handle = point;
1195         handle = zhandle;
1196         sv_free(err_code);
1197         sv_free(err_str);
1198         sv_free(status);
1199         sv_free(number);
1200         hv_undef(href);
1201         sv_free((SV *)href);
1202         av_undef(aref);
1203         sv_free((SV *)aref);
1204         av_undef(list);
1205         sv_free((SV *)list);
1206         av_undef(entries);
1207         /*sv_free((SV *)entries);*/
1208         sv_free(entries_ref);
1209
1210         return 0;
1211 }
1212
1213 bend_initresult *bend_init(bend_initrequest *q)
1214 {
1215         int dummy = simpleserver_clone();
1216         bend_initresult *r = (bend_initresult *)
1217                 odr_malloc (q->stream, sizeof(*r));
1218         char *ptr;
1219         CV* handler_cv = 0;
1220         dSP;
1221         STRLEN len;
1222         NMEM nmem = nmem_create();
1223         Zfront_handle *zhandle =  (Zfront_handle *) nmem_malloc (nmem,
1224                         sizeof(*zhandle));
1225         SV *handle;
1226         HV *href;
1227         SV **temp;
1228
1229         ENTER;
1230         SAVETMPS;
1231
1232         zhandle->nmem = nmem;
1233         zhandle->stop_flag = 0;
1234
1235         if (sort_ref)
1236         {
1237             q->bend_sort = bend_sort;
1238         }
1239         if (search_ref)
1240         {
1241                 q->bend_search = bend_search;
1242         }
1243         if (present_ref)
1244         {
1245                 q->bend_present = bend_present;
1246         }
1247         /*q->bend_esrequest = bend_esrequest;*/
1248         /*q->bend_delete = bend_delete;*/
1249         if (fetch_ref)
1250         {
1251                 q->bend_fetch = bend_fetch;
1252         }
1253         if (scan_ref)
1254         {
1255                 q->bend_scan = bend_scan;
1256         }
1257
1258         href = newHV();
1259         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1260         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1261         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1262         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1263         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1264         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1265         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1266         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1267         if (q->auth) {
1268             char *user = NULL;
1269             char *passwd = NULL;
1270             if (q->auth->which == Z_IdAuthentication_open) {
1271                 char *cp;
1272                 user = nmem_strdup (odr_getmem (q->stream), q->auth->u.open);
1273                 cp = strchr (user, '/');
1274                 if (cp) {
1275                     /* password after / given */
1276                     *cp = '\0';
1277                     passwd = cp+1;
1278                 }
1279             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1280                 user = q->auth->u.idPass->userId;
1281                 passwd = q->auth->u.idPass->password;
1282             }
1283             /* ### some code paths have user/password unassigned here */
1284             if (user)
1285                 hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1286             if (passwd)
1287                 hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1288         }
1289
1290         PUSHMARK(sp);
1291
1292         XPUSHs(sv_2mortal(newRV((SV*) href)));
1293
1294         PUTBACK;
1295
1296         if (init_ref != NULL)
1297         {
1298              handler_cv = simpleserver_sv2cv( init_ref );
1299              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1300         }
1301
1302         SPAGAIN;
1303
1304         temp = hv_fetch(href, "IMP_ID", 6, 1);
1305         ptr = SvPV(*temp, len);
1306         q->implementation_id = nmem_strdup(nmem, ptr);
1307
1308         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1309         ptr = SvPV(*temp, len);
1310         q->implementation_name = nmem_strdup(nmem, ptr);
1311
1312         temp = hv_fetch(href, "IMP_VER", 7, 1);
1313         ptr = SvPV(*temp, len);
1314         q->implementation_version = nmem_strdup(nmem, ptr);
1315
1316         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1317         r->errcode = SvIV(*temp);
1318
1319         temp = hv_fetch(href, "ERR_STR", 7, 1);
1320         ptr = SvPV(*temp, len);
1321         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1322         strcpy(r->errstring, ptr);
1323
1324         temp = hv_fetch(href, "HANDLE", 6, 1);
1325         handle= newSVsv(*temp);
1326         zhandle->handle = handle;
1327
1328         r->handle = zhandle;
1329
1330         hv_undef(href);
1331         sv_free((SV*) href);
1332
1333         PUTBACK;
1334         FREETMPS;
1335         LEAVE;
1336
1337         return r;
1338 }
1339
1340 void bend_close(void *handle)
1341 {
1342         HV *href;
1343         Zfront_handle *zhandle = (Zfront_handle *)handle;
1344         CV* handler_cv = 0;
1345         int stop_flag = 0;
1346         dSP;
1347         ENTER;
1348         SAVETMPS;
1349
1350         if (close_ref)
1351         {
1352                 href = newHV();
1353                 hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1354
1355                 PUSHMARK(sp);
1356
1357                 XPUSHs(sv_2mortal(newRV((SV *)href)));
1358
1359                 PUTBACK;
1360
1361                 handler_cv = simpleserver_sv2cv( close_ref );
1362                 perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1363
1364                 SPAGAIN;
1365
1366                 sv_free((SV*) href);
1367         }
1368         else
1369                 sv_free(zhandle->handle);
1370         PUTBACK;
1371         FREETMPS;
1372         LEAVE;
1373         stop_flag = zhandle->stop_flag;
1374         nmem_destroy(zhandle->nmem);
1375         simpleserver_free();
1376
1377         if (stop_flag)
1378                 exit(0);
1379         return;
1380 }
1381
1382
1383 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1384
1385 PROTOTYPES: DISABLE
1386
1387
1388 void
1389 set_init_handler(arg)
1390                 SV *arg
1391         CODE:
1392                 init_ref = newSVsv(arg);
1393
1394
1395 void
1396 set_close_handler(arg)
1397                 SV *arg
1398         CODE:
1399                 close_ref = newSVsv(arg);
1400
1401
1402 void
1403 set_sort_handler(arg)
1404                 SV *arg
1405         CODE:
1406                 sort_ref = newSVsv(arg);
1407
1408 void
1409 set_search_handler(arg)
1410                 SV *arg
1411         CODE:
1412                 search_ref = newSVsv(arg);
1413
1414
1415 void
1416 set_fetch_handler(arg)
1417                 SV *arg
1418         CODE:
1419                 fetch_ref = newSVsv(arg);
1420
1421
1422 void
1423 set_present_handler(arg)
1424                 SV *arg
1425         CODE:
1426                 present_ref = newSVsv(arg);
1427
1428
1429 void
1430 set_esrequest_handler(arg)
1431                 SV *arg
1432         CODE:
1433                 esrequest_ref = newSVsv(arg);
1434
1435
1436 void
1437 set_delete_handler(arg)
1438                 SV *arg
1439         CODE:
1440                 delete_ref = newSVsv(arg);
1441
1442
1443 void
1444 set_scan_handler(arg)
1445                 SV *arg
1446         CODE:
1447                 scan_ref = newSVsv(arg);
1448
1449
1450 int
1451 start_server(...)
1452         PREINIT:
1453                 char **argv;
1454                 char **argv_buf;
1455                 char *ptr;
1456                 int i;
1457                 STRLEN len;
1458         CODE:
1459                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1460                 argv = argv_buf;
1461                 for (i = 0; i < items; i++)
1462                 {
1463                         ptr = SvPV(ST(i), len);
1464                         *argv_buf = (char *)xmalloc(len + 1);
1465                         strcpy(*argv_buf++, ptr);
1466                 }
1467                 *argv_buf = NULL;
1468                 root_perl_context = PERL_GET_CONTEXT;
1469                 nmem_mutex_create(&simpleserver_mutex);
1470 #if 0
1471                 /* only for debugging perl_clone .. */
1472                 tst_clones();
1473 #endif
1474
1475                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1476         OUTPUT:
1477                 RETVAL
1478
1479
1480 int
1481 ScanSuccess()
1482         CODE:
1483                 RETVAL = BEND_SCAN_SUCCESS;
1484         OUTPUT:
1485                 RETVAL
1486
1487 int
1488 ScanPartial()
1489         CODE:
1490                 RETVAL = BEND_SCAN_PARTIAL;
1491         OUTPUT:
1492                 RETVAL
1493
1494
1495 void
1496 yazlog(arg)
1497                 SV *arg
1498         CODE:
1499                 STRLEN len;
1500                 char *ptr;
1501                 ptr = SvPV(arg, len);
1502                 yaz_log(YLOG_LOG, "%.*s", len, ptr);