SimpleServer.xs

   1 /*
   2  * $Id: SimpleServer.xs,v 1.59 2007-04-17 08:06:47 adam 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 <yaz/querytowrbuf.h>
  39 #include <stdio.h>
  40 #ifdef WIN32
  41 #else
  42 #include <unistd.h>
  43 #endif
  44 #include <stdlib.h>
  45 #include <ctype.h>
  46 #define GRS_MAX_FIELDS 500
  47 #ifdef ASN_COMPILED
  48 #include <yaz/ill.h>
  49 #endif
  50 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  51 #define sv_undef PL_sv_undef
  52 #endif
  53
  54 NMEM_MUTEX simpleserver_mutex;
  55
  56 typedef struct {
  57         SV *handle;
  58
  59         SV *init_ref;
  60         SV *close_ref;
  61         SV *sort_ref;
  62         SV *search_ref;
  63         SV *fetch_ref;
  64         SV *present_ref;
  65         SV *esrequest_ref;
  66         SV *delete_ref;
  67         SV *scan_ref;
  68         SV *explain_ref;
  69         NMEM nmem;
  70         int stop_flag;  /* is used to stop server prematurely .. */
  71 } Zfront_handle;
  72
  73 #define ENABLE_STOP_SERVER 0
  74
  75 SV *init_ref = NULL;
  76 SV *close_ref = NULL;
  77 SV *sort_ref = NULL;
  78 SV *search_ref = NULL;
  79 SV *fetch_ref = NULL;
  80 SV *present_ref = NULL;
  81 SV *esrequest_ref = NULL;
  82 SV *delete_ref = NULL;
  83 SV *scan_ref = NULL;
  84 SV *explain_ref = NULL;
  85 PerlInterpreter *root_perl_context;
  86 int MAX_OID = 15;
  87
  88 #define GRS_BUF_SIZE 8192
  89
  90 CV * simpleserver_sv2cv(SV *handler) {
  91     STRLEN len;
  92     char *buf;
  93
  94     if (SvPOK(handler)) {
  95         CV *ret;
  96         buf = SvPV( handler, len);
  97         if ( !( ret = perl_get_cv(buf, FALSE ) ) ) {
  98             fprintf( stderr, "simpleserver_sv2cv: No such handler '%s'\n\n", buf );
  99             exit(1);
 100         }
 101
 102         return ret;
 103     } else {
 104         return (CV *) handler;
 105     }
 106 }
 107
 108 /* debugging routine to check for destruction of Perl interpreters */
 109 #ifdef USE_ITHREADS
 110 void tst_clones(void)
 111 {
 112     int i;
 113     PerlInterpreter *parent = PERL_GET_CONTEXT;
 114     for (i = 0; i<5000; i++)
 115     {
 116         PerlInterpreter *perl_interp;
 117
 118         PERL_SET_CONTEXT(parent);
 119         PL_perl_destruct_level = 2;
 120         perl_interp = perl_clone(parent, CLONEf_CLONE_HOST);
 121         PL_perl_destruct_level = 2;
 122         PERL_SET_CONTEXT(perl_interp);
 123         perl_destruct(perl_interp);
 124         perl_free(perl_interp);
 125     }
 126     exit (0);
 127 }
 128 #endif
 129
 130 int simpleserver_clone(void) {
 131 #ifdef USE_ITHREADS
 132      nmem_mutex_enter(simpleserver_mutex);
 133      if (1)
 134      {
 135          PerlInterpreter *current = PERL_GET_CONTEXT;
 136
 137          /* if current is unset, then we're in a new thread with
 138           * no Perl interpreter for it. So we must create one .
 139           * This will only happen when threaded is used..
 140           */
 141          if (!current) {
 142              PerlInterpreter *perl_interp;
 143              PERL_SET_CONTEXT( root_perl_context );
 144              perl_interp = perl_clone(root_perl_context, CLONEf_CLONE_HOST);
 145              PERL_SET_CONTEXT( perl_interp );
 146          }
 147      }
 148      nmem_mutex_leave(simpleserver_mutex);
 149 #endif
 150      return 0;
 151 }
 152
 153
 154 void simpleserver_free(void) {
 155     nmem_mutex_enter(simpleserver_mutex);
 156     if (1)
 157     {
 158         PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 159
 160         /* If current Perl Interp is different from root interp, then
 161          * we're in threaded mode and we must destroy..
 162          */
 163         if (current_interp != root_perl_context) {
 164             PL_perl_destruct_level = 2;
 165             PERL_SET_CONTEXT(current_interp);
 166             perl_destruct(current_interp);
 167             perl_free(current_interp);
 168         }
 169     }
 170     nmem_mutex_leave(simpleserver_mutex);
 171 }
 172
 173
 174 Z_GenericRecord *read_grs1(char *str, ODR o)
 175 {
 176         int type, ivalue;
 177         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 178         char value[GRS_BUF_SIZE+1];
 179         Z_GenericRecord *r = 0;
 180
 181         original = str;
 182         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 183         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 184         r->num_elements = 0;
 185
 186         for (;;)
 187         {
 188                 Z_TaggedElement *t;
 189                 Z_ElementData *c;
 190                 int len;
 191
 192                 ptr = strchr(str, '\n');
 193                 if (!ptr) {
 194                         return r;
 195                 }
 196                 len = ptr - str;
 197                 if (len > GRS_BUF_SIZE) {
 198                     yaz_log(YLOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 199                     len = GRS_BUF_SIZE;
 200                 }
 201                 strncpy(line, str, len);
 202                 line[len] = 0;
 203                 buf = line;
 204                 str = ptr + 1;
 205                 while (*buf && isspace(*buf))
 206                         buf++;
 207                 if (*buf == '}') {
 208                         memmove(original, str, strlen(str));
 209                         return r;
 210                 }
 211                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 212                 {
 213                         yaz_log(YLOG_WARN, "Bad data in '%s'", buf);
 214                         return r;
 215                 }
 216                 if (!type && *value == '0')
 217                         return r;
 218                 if (!(buf = strchr(buf, ')')))
 219                         return r;
 220                 buf++;
 221                 while (*buf && isspace(*buf))
 222                         buf++;
 223                 if (r->num_elements >= GRS_MAX_FIELDS)
 224                 {
 225                         yaz_log(YLOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 226                         exit(0);
 227                 }
 228                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 229                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 230                 *t->tagType = type;
 231                 t->tagValue = (Z_StringOrNumeric *)
 232                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 233                 if ((ivalue = atoi(value)))
 234                 {
 235                         t->tagValue->which = Z_StringOrNumeric_numeric;
 236                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 237                         *t->tagValue->u.numeric = ivalue;
 238                 }
 239                 else
 240                 {
 241                         t->tagValue->which = Z_StringOrNumeric_string;
 242                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 243                         strcpy(t->tagValue->u.string, value);
 244                 }
 245                 t->tagOccurrence = 0;
 246                 t->metaData = 0;
 247                 t->appliedVariant = 0;
 248                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 249                 if (*buf == '{')
 250                 {
 251                         c->which = Z_ElementData_subtree;
 252                         c->u.subtree = read_grs1(str, o);
 253                 }
 254                 else
 255                 {
 256                         c->which = Z_ElementData_string;
 257                         c->u.string = odr_strdup(o, buf);
 258                 }
 259                 r->num_elements++;
 260         }
 261 }
 262
 263
 264
 265 static void oid2str(Odr_oid *o, WRBUF buf)
 266 {
 267     for (; *o >= 0; o++) {
 268         char ibuf[16];
 269         sprintf(ibuf, "%d", *o);
 270         wrbuf_puts(buf, ibuf);
 271         if (o[1] > 0)
 272             wrbuf_putc(buf, '.');
 273     }
 274 }
 275
 276 WRBUF oid2dotted(int *oid)
 277 {
 278     WRBUF buf = wrbuf_alloc();
 279     oid2str(oid, buf);
 280     return buf;
 281 }
 282
 283
 284 WRBUF zquery2pquery(Z_Query *q)
 285 {
 286     WRBUF buf = wrbuf_alloc();
 287
 288     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 289         return 0;
 290     yaz_rpnquery_to_wrbuf(buf, q->u.type_1);
 291     return buf;
 292 }
 293
 294
 295 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 296 #include <stdarg.h>
 297 void fatal(char *fmt, ...)
 298 {
 299     va_list ap;
 300
 301     fprintf(stderr, "FATAL (SimpleServer): ");
 302     va_start(ap, fmt);
 303     vfprintf(stderr, fmt, ap);
 304     va_end(ap);
 305     fprintf(stderr, "\n");
 306     abort();
 307 }
 308
 309
 310 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 311 /*
 312  * Creates a new Perl object of type `class'; the newly-created scalar
 313  * that is a reference to the blessed thingy `referent' is returned.
 314  */
 315 static SV *newObject(char *class, SV *referent)
 316 {
 317     HV *stash;
 318     SV *sv;
 319
 320     sv = newRV_noinc((SV*) referent);
 321     stash = gv_stashpv(class, 0);
 322     if (stash == 0)
 323         fatal("attempt to create object of undefined class '%s'", class);
 324     /*assert(stash != 0);*/
 325     sv_bless(sv, stash);
 326     return sv;
 327 }
 328
 329
 330 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 331 static void setMember(HV *hv, char *name, SV *val)
 332 {
 333     /* We don't increment `val's reference count -- I think this is
 334      * right because it's created with a refcount of 1, and in fact
 335      * the reference via this hash is the only reference to it in
 336      * general.
 337      */
 338     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 339         fatal("couldn't store member in hash");
 340 }
 341
 342
 343 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 344 static SV *translateOID(Odr_oid *x)
 345 {
 346     /* Yaz represents an OID by an int array terminated by a negative
 347      * value, typically -1; we represent it as a reference to a
 348      * blessed scalar string of "."-separated elements.
 349      */
 350     char buf[1000];
 351     int i;
 352
 353     *buf = '\0';
 354     for (i = 0; x[i] >= 0; i++) {
 355         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 356         if (x[i+1] >- 0)
 357             strcat(buf, ".");
 358     }
 359
 360     /*
 361      * ### We'd like to return a blessed scalar (string) here, but of
 362      *  course you can't do that in Perl: only references can be
 363      *  blessed, so we'd have to return a _reference_ to a string, and
 364      *  bless _that_.  Better to do without the blessing, I think.
 365      */
 366     if (1) {
 367         return newSVpv(buf, 0);
 368     } else {
 369         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 370     }
 371 }
 372
 373
 374 static SV *rpn2perl(Z_RPNStructure *s)
 375 {
 376     SV *sv;
 377     HV *hv;
 378     AV *av;
 379
 380     switch (s->which) {
 381     case Z_RPNStructure_simple: {
 382         Z_Operand *o = s->u.simple;
 383         Z_AttributesPlusTerm *at;
 384         if (o->which == Z_Operand_resultSetId) {
 385             SV *sv2;
 386             /* This code causes a SIGBUS on my machine, and I have no
 387                idea why.  It seems as clear as day to me */
 388             char *rsid = (char*) o->u.resultSetId;
 389             printf("Encoding resultSetId '%s'\n", rsid);
 390             sv = newObject("Net::Z3950::RPN::RSID", (SV*) (hv = newHV()));
 391             printf("Made sv=0x%lx, hv=0x%lx\n",
 392                    (unsigned long) sv ,(unsigned long) hv);
 393             sv2 = newSVpv(rsid, strlen(rsid));
 394             setMember(hv, "id", sv2);
 395             printf("Set hv{id} to 0x%lx\n", (unsigned long) sv2);
 396             return sv;
 397         }
 398         if (o->which != Z_Operand_APT)
 399             fatal("can't handle RPN simples other than APT and RSID");
 400         at = o->u.attributesPlusTerm;
 401         if (at->term->which != Z_Term_general)
 402             fatal("can't handle RPN terms other than general");
 403
 404         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 405         if (at->attributes) {
 406             int i;
 407             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 408                                   (SV*) (av = newAV()));
 409             for (i = 0; i < at->attributes->num_attributes; i++) {
 410                 Z_AttributeElement *elem = at->attributes->attributes[i];
 411                 HV *hv2;
 412                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 413                                     (SV*) (hv2 = newHV()));
 414                 if (elem->attributeSet)
 415                     setMember(hv2, "attributeSet",
 416                               translateOID(elem->attributeSet));
 417                 setMember(hv2, "attributeType",
 418                           newSViv(*elem->attributeType));
 419                 assert(elem->which == Z_AttributeValue_numeric);
 420                 setMember(hv2, "attributeValue",
 421                           newSViv(*elem->value.numeric));
 422                 av_push(av, tmp);
 423             }
 424             setMember(hv, "attributes", attrs);
 425         }
 426         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 427                                       at->term->u.general->len));
 428         return sv;
 429     }
 430     case Z_RPNStructure_complex: {
 431         SV *tmp;
 432         Z_Complex *c = s->u.complex;
 433         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 434         switch (c->roperator->which) {
 435         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 436         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 437         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 438         case Z_Operator_prox:    fatal("proximity not yet supported");
 439         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 440         }
 441         sv = newObject(type, (SV*) (av = newAV()));
 442         if ((tmp = rpn2perl(c->s1)) == 0)
 443             return 0;
 444         av_push(av, tmp);
 445         if ((tmp = rpn2perl(c->s2)) == 0)
 446             return 0;
 447         av_push(av, tmp);
 448         return sv;
 449     }
 450     default: fatal("unknown RPN node type %d", (int) s->which);
 451     }
 452
 453     return 0;
 454 }
 455
 456
 457 /* Decode the Z_SortAttributes struct and store the whole thing into the
 458  * hash by reference
 459  */
 460 int simpleserver_ExpandSortAttributes (HV *sort_spec, Z_SortAttributes *sattr)
 461 {
 462     WRBUF attrset_wr = wrbuf_alloc();
 463     AV *list = newAV();
 464     Z_AttributeList *attr_list = sattr->list;
 465     int i;
 466
 467     oid2str(sattr->id, attrset_wr);
 468     hv_store(sort_spec, "ATTRSET", 7,
 469              newSVpv(attrset_wr->buf, attrset_wr->pos), 0);
 470     wrbuf_destroy(attrset_wr);
 471
 472     hv_store(sort_spec, "SORT_ATTR", 9, newRV( sv_2mortal( (SV*) list ) ), 0);
 473
 474     for (i = 0; i < attr_list->num_attributes; i++)
 475     {
 476         Z_AttributeElement *attr = *attr_list->attributes++;
 477         HV *attr_spec = newHV();
 478
 479         av_push(list, newRV( sv_2mortal( (SV*) attr_spec ) ));
 480         hv_store(attr_spec, "ATTR_TYPE", 9, newSViv(*attr->attributeType), 0);
 481
 482         if (attr->which == Z_AttributeValue_numeric)
 483         {
 484             hv_store(attr_spec, "ATTR_VALUE", 10,
 485                      newSViv(*attr->value.numeric), 0);
 486         } else {
 487             return 0;
 488         }
 489     }
 490
 491     return 1;
 492 }
 493
 494
 495 /* Decode the Z_SortKeySpec struct and store the whole thing in a perl hash */
 496 int simpleserver_SortKeySpecToHash (HV *sort_spec, Z_SortKeySpec *spec)
 497 {
 498     Z_SortElement *element = spec->sortElement;
 499
 500     hv_store(sort_spec, "RELATION", 8, newSViv(*spec->sortRelation), 0);
 501     hv_store(sort_spec, "CASE", 4, newSViv(*spec->caseSensitivity), 0);
 502     hv_store(sort_spec, "MISSING", 7, newSViv(spec->which), 0);
 503
 504     if (element->which == Z_SortElement_generic)
 505     {
 506         Z_SortKey *key = element->u.generic;
 507
 508         if (key->which == Z_SortKey_sortField)
 509         {
 510             hv_store(sort_spec, "SORTFIELD", 9,
 511                      newSVpv((char *) key->u.sortField, 0), 0);
 512         }
 513         else if (key->which == Z_SortKey_elementSpec)
 514         {
 515             Z_Specification *zspec = key->u.elementSpec;
 516
 517             hv_store(sort_spec, "ELEMENTSPEC_TYPE", 16,
 518                      newSViv(zspec->which), 0);
 519
 520             if (zspec->which == Z_Schema_oid)
 521             {
 522                 WRBUF elementSpec = wrbuf_alloc();
 523
 524                 oid2str(zspec->schema.oid, elementSpec);
 525                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 526                          newSVpv(elementSpec->buf, elementSpec->pos), 0);
 527                 wrbuf_destroy(elementSpec);
 528             }
 529             else if (zspec->which == Z_Schema_uri)
 530             {
 531                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 532                          newSVpv((char *) zspec->schema.uri, 0), 0);
 533             }
 534         }
 535         else if (key->which == Z_SortKey_sortAttributes)
 536         {
 537             return simpleserver_ExpandSortAttributes(sort_spec,
 538                                                      key->u.sortAttributes);
 539         }
 540         else
 541         {
 542             return 0;
 543         }
 544     }
 545     else
 546     {
 547         return 0;
 548     }
 549
 550     return 1;
 551 }
 552
 553
 554 static SV *zquery2perl(Z_Query *q)
 555 {
 556     SV *sv;
 557     HV *hv;
 558
 559     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 560         return 0;
 561     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 562     if (q->u.type_1->attributeSetId)
 563         setMember(hv, "attributeSet",
 564                   translateOID(q->u.type_1->attributeSetId));
 565     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 566     return sv;
 567 }
 568
 569
 570 int bend_sort(void *handle, bend_sort_rr *rr)
 571 {
 572         HV *href;
 573         AV *aref;
 574         AV *sort_seq;
 575         SV **temp;
 576         SV *err_code;
 577         SV *err_str;
 578         SV *status;
 579         SV *point;
 580         STRLEN len;
 581         char *ptr;
 582         char *ODR_err_str;
 583         char **input_setnames;
 584         Zfront_handle *zhandle = (Zfront_handle *)handle;
 585         Z_SortKeySpecList *sort_spec = rr->sort_sequence;
 586         int i;
 587
 588         dSP;
 589         ENTER;
 590         SAVETMPS;
 591
 592         aref = newAV();
 593         input_setnames = rr->input_setnames;
 594         for (i = 0; i < rr->num_input_setnames; i++)
 595         {
 596             av_push(aref, newSVpv(*input_setnames++, 0));
 597         }
 598
 599         sort_seq = newAV();
 600         for (i = 0; i < sort_spec->num_specs; i++)
 601         {
 602             Z_SortKeySpec *spec = *sort_spec->specs++;
 603             HV *sort_spec = newHV();
 604
 605             if ( simpleserver_SortKeySpecToHash(sort_spec, spec) )
 606                 av_push(sort_seq, newRV( sv_2mortal( (SV*) sort_spec ) ));
 607             else
 608             {
 609                 rr->errcode = 207;
 610                 return 0;
 611             }
 612         }
 613
 614         href = newHV();
 615         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 616         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 617         hv_store(href, "SEQUENCE", 8, newRV( (SV*) sort_seq), 0);
 618         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 619         hv_store(href, "STATUS", 6, newSViv(0), 0);
 620         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 621         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 622
 623         PUSHMARK(sp);
 624
 625         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 626
 627         PUTBACK;
 628
 629         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 630
 631         SPAGAIN;
 632
 633         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 634         err_code = newSVsv(*temp);
 635
 636         temp = hv_fetch(href, "ERR_STR", 7, 1);
 637         err_str = newSVsv(*temp);
 638
 639         temp = hv_fetch(href, "STATUS", 6, 1);
 640         status = newSVsv(*temp);
 641
 642         temp = hv_fetch(href, "HANDLE", 6, 1);
 643         point = newSVsv(*temp);
 644
 645         hv_undef(href);
 646         av_undef(aref);
 647         av_undef(sort_seq);
 648
 649         sv_free( (SV*) aref);
 650         sv_free( (SV*) href);
 651         sv_free( (SV*) sort_seq);
 652
 653         rr->errcode = SvIV(err_code);
 654         rr->sort_status = SvIV(status);
 655
 656         ptr = SvPV(err_str, len);
 657         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 658         strcpy(ODR_err_str, ptr);
 659         rr->errstring = ODR_err_str;
 660         zhandle->handle = point;
 661
 662         sv_free(err_code);
 663         sv_free(err_str);
 664         sv_free(status);
 665
 666         PUTBACK;
 667         FREETMPS;
 668         LEAVE;
 669
 670         return 0;
 671 }
 672
 673
 674 int bend_search(void *handle, bend_search_rr *rr)
 675 {
 676         HV *href;
 677         AV *aref;
 678         SV **temp;
 679         char *ODR_errstr;
 680         STRLEN len;
 681         int i;
 682         char **basenames;
 683         WRBUF query;
 684         char *ptr;
 685         SV *point;
 686         Zfront_handle *zhandle = (Zfront_handle *)handle;
 687         CV* handler_cv = 0;
 688         SV *rpnSV;
 689
 690         dSP;
 691         ENTER;
 692         SAVETMPS;
 693
 694         aref = newAV();
 695         basenames = rr->basenames;
 696         for (i = 0; i < rr->num_bases; i++)
 697         {
 698                 av_push(aref, newSVpv(*basenames++, 0));
 699         }
 700 #if ENABLE_STOP_SERVER
 701         if (rr->num_bases == 1 && !strcmp(rr->basenames[0], "XXstop"))
 702         {
 703                 zhandle->stop_flag = 1;
 704         }
 705 #endif
 706         href = newHV();
 707         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 708         if (rr->srw_sortKeys && *rr->srw_sortKeys)
 709             hv_store(href, "SRW_SORTKEYS", 12, newSVpv(rr->srw_sortKeys, 0), 0);
 710         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 711         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 712         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 713         hv_store(href, "HITS", 4, newSViv(0), 0);
 714         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 715         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 716         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 717         if ((rpnSV = zquery2perl(rr->query)) != 0) {
 718             hv_store(href, "RPN", 3, rpnSV, 0);
 719         }
 720         query = zquery2pquery(rr->query);
 721         if (query)
 722         {
 723                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 724         }
 725         else if (rr->query->which == Z_Query_type_104 &&
 726                  rr->query->u.type_104->which == Z_External_CQL) {
 727             hv_store(href, "CQL", 3,
 728                      newSVpv(rr->query->u.type_104->u.cql, 0), 0);
 729         }
 730         else
 731         {
 732                 rr->errcode = 108;
 733                 return 0;
 734         }
 735         PUSHMARK(sp);
 736
 737         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 738
 739         PUTBACK;
 740
 741         handler_cv = simpleserver_sv2cv( search_ref );
 742         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 743
 744         SPAGAIN;
 745
 746         temp = hv_fetch(href, "HITS", 4, 1);
 747         rr->hits = SvIV(*temp);
 748
 749         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 750         rr->errcode = SvIV(*temp);
 751
 752         temp = hv_fetch(href, "ERR_STR", 7, 1);
 753         ptr = SvPV(*temp, len);
 754         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 755         strcpy(ODR_errstr, ptr);
 756         rr->errstring = ODR_errstr;
 757
 758         temp = hv_fetch(href, "HANDLE", 6, 1);
 759         point = newSVsv(*temp);
 760
 761         hv_undef(href);
 762         av_undef(aref);
 763
 764         zhandle->handle = point;
 765         sv_free( (SV*) aref);
 766         sv_free( (SV*) href);
 767         if (query)
 768             wrbuf_destroy(query);
 769         PUTBACK;
 770         FREETMPS;
 771         LEAVE;
 772         return 0;
 773 }
 774
 775
 776 int bend_fetch(void *handle, bend_fetch_rr *rr)
 777 {
 778         HV *href;
 779         SV **temp;
 780         SV *basename;
 781         SV *record;
 782         SV *last;
 783         SV *err_code;
 784         SV *err_string;
 785         SV *sur_flag;
 786         SV *point;
 787         SV *rep_form;
 788         SV *schema = 0;
 789         char *ptr;
 790         char *ODR_record;
 791         char *ODR_basename;
 792         char *ODR_errstr;
 793         int *ODR_oid_buf;
 794         WRBUF oid_dotted;
 795         Zfront_handle *zhandle = (Zfront_handle *)handle;
 796         CV* handler_cv = 0;
 797
 798         Z_RecordComposition *composition;
 799         Z_ElementSetNames *simple;
 800         Z_CompSpec *complex;
 801         STRLEN length;
 802
 803         dSP;
 804         ENTER;
 805         SAVETMPS;
 806
 807         rr->errcode = 0;
 808         href = newHV();
 809         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 810         if (rr->schema)
 811                 hv_store(href, "SCHEMA", 6, newSVpv(rr->schema, 0), 0);
 812         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 813         if (rr->request_format != 0) {
 814             oid_dotted = oid2dotted(rr->request_format);
 815         } else {
 816             /* Probably an SRU request: assume XML is required */
 817             oid_dotted = wrbuf_alloc();
 818             wrbuf_puts(oid_dotted, "1.2.840.10003.5.109.10");
 819         }
 820         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 821         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 822         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 823         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 824         hv_store(href, "LAST", 4, newSViv(0), 0);
 825         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 826         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 827         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 828         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 829         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 830         if (rr->comp)
 831         {
 832                 composition = rr->comp;
 833                 if (composition->which == Z_RecordComp_simple)
 834                 {
 835                         simple = composition->u.simple;
 836                         if (simple->which == Z_ElementSetNames_generic)
 837                         {
 838                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 839                         }
 840                         else
 841                         {
 842                                 rr->errcode = 26;
 843                         }
 844                 }
 845                 else if (composition->which == Z_RecordComp_complex)
 846                 {
 847                         if (composition->u.complex->generic &&
 848
 849                                         composition->u.complex->generic &&
 850                                         composition->u.complex->generic->elementSpec &&
 851                                         composition->u.complex->generic->elementSpec->which ==
 852                                         Z_ElementSpec_elementSetName)
 853                         {
 854                                 complex = composition->u.complex;
 855                                 hv_store(href, "COMP", 4,
 856                                         newSVpv(complex->generic->elementSpec->u.elementSetName, 0), 0);
 857                         }
 858                         else
 859                         {
 860 #if 0   /* For now ignore this error, which is ubiquitous in SRU */
 861                                 fprintf(stderr, "complex is weird\n");
 862                                 rr->errcode = 26;
 863                                 return 0;
 864 #endif /*0*/
 865                         }
 866                 }
 867                 else
 868                 {
 869                         rr->errcode = 26;
 870                         return 0;
 871                 }
 872         }
 873
 874         PUSHMARK(sp);
 875
 876         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 877
 878         PUTBACK;
 879
 880         handler_cv = simpleserver_sv2cv( fetch_ref );
 881         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 882
 883         SPAGAIN;
 884
 885         temp = hv_fetch(href, "BASENAME", 8, 1);
 886         basename = newSVsv(*temp);
 887
 888         temp = hv_fetch(href, "RECORD", 6, 1);
 889         record = newSVsv(*temp);
 890
 891         temp = hv_fetch(href, "LAST", 4, 1);
 892         last = newSVsv(*temp);
 893
 894         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 895         err_code = newSVsv(*temp);
 896
 897         temp = hv_fetch(href, "ERR_STR", 7, 1),
 898         err_string = newSVsv(*temp);
 899
 900         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 901         sur_flag = newSVsv(*temp);
 902
 903         temp = hv_fetch(href, "REP_FORM", 8, 1);
 904         rep_form = newSVsv(*temp);
 905
 906         temp = hv_fetch(href, "SCHEMA", 6, 1);
 907         if (temp != 0) {
 908                 schema = newSVsv(*temp);
 909                 ptr = SvPV(schema, length);
 910                 if (length > 0) {
 911                         rr->schema = (char *)odr_malloc(rr->stream, length + 1);
 912                         strcpy(rr->schema, ptr);
 913                 }
 914         }
 915
 916         temp = hv_fetch(href, "HANDLE", 6, 1);
 917         point = newSVsv(*temp);
 918
 919
 920         hv_undef(href);
 921
 922         ptr = SvPV(basename, length);
 923         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 924         strcpy(ODR_basename, ptr);
 925         rr->basename = ODR_basename;
 926
 927         ptr = SvPV(rep_form, length);
 928
 929         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 930         if (oid_dotstring_to_oid(ptr, ODR_oid_buf))
 931         {
 932                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 933         }
 934         rr->output_format = ODR_oid_buf;
 935
 936         ptr = SvPV(record, length);
 937         /* Treat GRS-1 records separately */
 938         if (!oid_oidcmp(ODR_oid_buf, yaz_oid_recsyn_grs_1))
 939         {
 940                 rr->record = (char *) read_grs1(ptr, rr->stream);
 941                 rr->len = -1;
 942         }
 943         else
 944         {
 945                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 946                 strcpy(ODR_record, ptr);
 947                 rr->record = ODR_record;
 948                 rr->len = length;
 949         }
 950         zhandle->handle = point;
 951         handle = zhandle;
 952         rr->last_in_set = SvIV(last);
 953
 954         if (!(rr->errcode))
 955         {
 956                 rr->errcode = SvIV(err_code);
 957                 ptr = SvPV(err_string, length);
 958                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 959                 strcpy(ODR_errstr, ptr);
 960                 rr->errstring = ODR_errstr;
 961         }
 962         rr->surrogate_flag = SvIV(sur_flag);
 963
 964         wrbuf_destroy(oid_dotted);
 965         sv_free((SV*) href);
 966         sv_free(basename);
 967         sv_free(record);
 968         sv_free(last);
 969         sv_free(err_string);
 970         sv_free(err_code),
 971         sv_free(sur_flag);
 972         sv_free(rep_form);
 973
 974         if (schema)
 975                 sv_free(schema);
 976
 977         PUTBACK;
 978         FREETMPS;
 979         LEAVE;
 980
 981         return 0;
 982 }
 983
 984
 985 int bend_present(void *handle, bend_present_rr *rr)
 986 {
 987         HV *href;
 988         SV **temp;
 989         SV *err_code;
 990         SV *err_string;
 991         SV *hits;
 992         SV *point;
 993         STRLEN len;
 994         Z_RecordComposition *composition;
 995         Z_ElementSetNames *simple;
 996         Z_CompSpec *complex;
 997         char *ODR_errstr;
 998         char *ptr;
 999         Zfront_handle *zhandle = (Zfront_handle *)handle;
1000         CV* handler_cv = 0;
1001
1002 /*      WRBUF oid_dotted; */
1003
1004         dSP;
1005         ENTER;
1006         SAVETMPS;
1007
1008         href = newHV();
1009         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1010         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1011         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1012         hv_store(href, "START", 5, newSViv(rr->start), 0);
1013         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
1014         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
1015         /*oid_dotted = oid2dotted(rr->request_format_raw);
1016         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
1017         hv_store(href, "HITS", 4, newSViv(0), 0);
1018         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1019         if (rr->comp)
1020         {
1021                 composition = rr->comp;
1022                 if (composition->which == Z_RecordComp_simple)
1023                 {
1024                         simple = composition->u.simple;
1025                         if (simple->which == Z_ElementSetNames_generic)
1026                         {
1027                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
1028                         }
1029                         else
1030                         {
1031                                 rr->errcode = 26;
1032                                 return 0;
1033                         }
1034                 }
1035                 else if (composition->which == Z_RecordComp_complex)
1036                 {
1037                         if (composition->u.complex->generic &&
1038
1039                                         composition->u.complex->generic &&
1040                                         composition->u.complex->generic->elementSpec &&
1041                                         composition->u.complex->generic->elementSpec->which ==
1042                                         Z_ElementSpec_elementSetName)
1043                         {
1044                                 complex = composition->u.complex;
1045                                 hv_store(href, "COMP", 4,
1046                                         newSVpv(complex->generic->elementSpec->u.elementSetName, 0), 0);
1047                         }
1048                         else
1049                         {
1050                                 rr->errcode = 26;
1051                                 return 0;
1052                         }
1053                 }
1054                 else
1055                 {
1056                         rr->errcode = 26;
1057                         return 0;
1058                 }
1059         }
1060
1061         PUSHMARK(sp);
1062
1063         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1064
1065         PUTBACK;
1066
1067         handler_cv = simpleserver_sv2cv( present_ref );
1068         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1069
1070         SPAGAIN;
1071
1072         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1073         err_code = newSVsv(*temp);
1074
1075         temp = hv_fetch(href, "ERR_STR", 7, 1);
1076         err_string = newSVsv(*temp);
1077
1078         temp = hv_fetch(href, "HITS", 4, 1);
1079         hits = newSVsv(*temp);
1080
1081         temp = hv_fetch(href, "HANDLE", 6, 1);
1082         point = newSVsv(*temp);
1083
1084         PUTBACK;
1085         FREETMPS;
1086         LEAVE;
1087
1088         hv_undef(href);
1089         rr->errcode = SvIV(err_code);
1090         rr->hits = SvIV(hits);
1091
1092         ptr = SvPV(err_string, len);
1093         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1094         strcpy(ODR_errstr, ptr);
1095         rr->errstring = ODR_errstr;
1096 /*      wrbuf_free(oid_dotted, 1);*/
1097         zhandle->handle = point;
1098         handle = zhandle;
1099         sv_free(err_code);
1100         sv_free(err_string);
1101         sv_free(hits);
1102         sv_free( (SV*) href);
1103
1104         return 0;
1105 }
1106
1107
1108 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
1109 {
1110         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
1111         return 0;
1112 }
1113
1114
1115 int bend_delete(void *handle, bend_delete_rr *rr)
1116 {
1117         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
1118         return 0;
1119 }
1120
1121
1122 int bend_scan(void *handle, bend_scan_rr *rr)
1123 {
1124         HV *href;
1125         AV *aref;
1126         AV *list;
1127         AV *entries;
1128         HV *scan_item;
1129         struct scan_entry *scan_list;
1130         struct scan_entry *buffer;
1131         int *step_size = rr->step_size;
1132         int i;
1133         char **basenames;
1134         SV **temp;
1135         SV *err_code = sv_newmortal();
1136         SV *err_str = sv_newmortal();
1137         SV *point = sv_newmortal();
1138         SV *status = sv_newmortal();
1139         SV *number = sv_newmortal();
1140         char *ptr;
1141         char *ODR_errstr;
1142         STRLEN len;
1143         int term_len;
1144         SV *entries_ref;
1145         Zfront_handle *zhandle = (Zfront_handle *)handle;
1146         CV* handler_cv = 0;
1147
1148         dSP;
1149         ENTER;
1150         SAVETMPS;
1151         href = newHV();
1152         list = newAV();
1153         if (rr->term->term->which == Z_Term_general)
1154         {
1155                 term_len = rr->term->term->u.general->len;
1156                 hv_store(href, "TERM", 4, newSVpv((char*) rr->term->term->u.general->buf, term_len), 0);
1157         } else {
1158                 rr->errcode = 229;      /* Unsupported term type */
1159                 return 0;
1160         }
1161         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1162         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1163         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1164         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1165         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1166         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1167         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1168         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1169         aref = newAV();
1170         basenames = rr->basenames;
1171         for (i = 0; i < rr->num_bases; i++)
1172         {
1173                 av_push(aref, newSVpv(*basenames++, 0));
1174         }
1175         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1176
1177         PUSHMARK(sp);
1178
1179         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1180
1181         PUTBACK;
1182
1183         handler_cv = simpleserver_sv2cv( scan_ref );
1184         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1185
1186         SPAGAIN;
1187
1188         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1189         err_code = newSVsv(*temp);
1190
1191         temp = hv_fetch(href, "ERR_STR", 7, 1);
1192         err_str = newSVsv(*temp);
1193
1194         temp = hv_fetch(href, "HANDLE", 6, 1);
1195         point = newSVsv(*temp);
1196
1197         temp = hv_fetch(href, "STATUS", 6, 1);
1198         status = newSVsv(*temp);
1199
1200         temp = hv_fetch(href, "NUMBER", 6, 1);
1201         number = newSVsv(*temp);
1202
1203         temp = hv_fetch(href, "ENTRIES", 7, 1);
1204         entries_ref = newSVsv(*temp);
1205
1206         PUTBACK;
1207         FREETMPS;
1208         LEAVE;
1209
1210         ptr = SvPV(err_str, len);
1211         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1212         strcpy(ODR_errstr, ptr);
1213         rr->errstring = ODR_errstr;
1214         rr->errcode = SvIV(err_code);
1215         rr->num_entries = SvIV(number);
1216         rr->status = SvIV(status);
1217         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1218         buffer = scan_list;
1219         entries = (AV *)SvRV(entries_ref);
1220         for (i = 0; i < rr->num_entries; i++)
1221         {
1222                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1223                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1224                 ptr = SvPV(*temp, len);
1225                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1226                 strcpy(buffer->term, ptr);
1227                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1228                 buffer->occurrences = SvIV(*temp);
1229                 buffer++;
1230                 hv_undef(scan_item);
1231         }
1232         rr->entries = scan_list;
1233         zhandle->handle = point;
1234         handle = zhandle;
1235         sv_free(err_code);
1236         sv_free(err_str);
1237         sv_free(status);
1238         sv_free(number);
1239         hv_undef(href);
1240         sv_free((SV *)href);
1241         av_undef(aref);
1242         sv_free((SV *)aref);
1243         av_undef(list);
1244         sv_free((SV *)list);
1245         av_undef(entries);
1246         /*sv_free((SV *)entries);*/
1247         sv_free(entries_ref);
1248
1249         return 0;
1250 }
1251
1252 int bend_explain(void *handle, bend_explain_rr *q)
1253 {
1254         HV *href;
1255         CV *handler_cv = 0;
1256         SV **temp;
1257         char *explain;
1258         SV *explainsv;
1259         STRLEN len;
1260         Zfront_handle *zhandle = (Zfront_handle *)handle;
1261
1262         dSP;
1263         ENTER;
1264         SAVETMPS;
1265
1266         href = newHV();
1267         hv_store(href, "EXPLAIN", 7, newSVpv("", 0), 0);
1268         hv_store(href, "DATABASE", 8, newSVpv(q->database, 0), 0);
1269         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1270
1271         PUSHMARK(sp);
1272         XPUSHs(sv_2mortal(newRV((SV*) href)));
1273         PUTBACK;
1274
1275         handler_cv = simpleserver_sv2cv(explain_ref);
1276         perl_call_sv((SV*) handler_cv, G_SCALAR | G_DISCARD);
1277
1278         SPAGAIN;
1279
1280         temp = hv_fetch(href, "EXPLAIN", 7, 1);
1281         explainsv = newSVsv(*temp);
1282
1283         PUTBACK;
1284         FREETMPS;
1285         LEAVE;
1286
1287         explain = SvPV(explainsv, len);
1288         q->explain_buf = (char*) odr_malloc(q->stream, len + 1);
1289         strcpy(q->explain_buf, explain);
1290
1291         return 0;
1292 }
1293
1294 bend_initresult *bend_init(bend_initrequest *q)
1295 {
1296         int dummy = simpleserver_clone();
1297         bend_initresult *r = (bend_initresult *)
1298                 odr_malloc (q->stream, sizeof(*r));
1299         char *ptr;
1300         CV* handler_cv = 0;
1301         dSP;
1302         STRLEN len;
1303         NMEM nmem = nmem_create();
1304         Zfront_handle *zhandle =  (Zfront_handle *) nmem_malloc (nmem,
1305                         sizeof(*zhandle));
1306         SV *handle;
1307         HV *href;
1308         SV **temp;
1309
1310         ENTER;
1311         SAVETMPS;
1312
1313         zhandle->nmem = nmem;
1314         zhandle->stop_flag = 0;
1315
1316         if (sort_ref)
1317         {
1318             q->bend_sort = bend_sort;
1319         }
1320         if (search_ref)
1321         {
1322                 q->bend_search = bend_search;
1323         }
1324         if (present_ref)
1325         {
1326                 q->bend_present = bend_present;
1327         }
1328         /*q->bend_esrequest = bend_esrequest;*/
1329         /*q->bend_delete = bend_delete;*/
1330         if (fetch_ref)
1331         {
1332                 q->bend_fetch = bend_fetch;
1333         }
1334         if (scan_ref)
1335         {
1336                 q->bend_scan = bend_scan;
1337         }
1338         if (explain_ref)
1339         {
1340                 q->bend_explain = bend_explain;
1341         }
1342
1343         href = newHV();
1344         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1345         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1346         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1347         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1348         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1349         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1350         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1351         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1352         if (q->auth) {
1353             char *user = NULL;
1354             char *passwd = NULL;
1355             if (q->auth->which == Z_IdAuthentication_open) {
1356                 char *cp;
1357                 user = nmem_strdup (odr_getmem (q->stream), q->auth->u.open);
1358                 cp = strchr (user, '/');
1359                 if (cp) {
1360                     /* password after / given */
1361                     *cp = '\0';
1362                     passwd = cp+1;
1363                 }
1364             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1365                 user = q->auth->u.idPass->userId;
1366                 passwd = q->auth->u.idPass->password;
1367             }
1368             /* ### some code paths have user/password unassigned here */
1369             if (user)
1370                 hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1371             if (passwd)
1372                 hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1373         }
1374
1375         PUSHMARK(sp);
1376
1377         XPUSHs(sv_2mortal(newRV((SV*) href)));
1378
1379         PUTBACK;
1380
1381         if (init_ref != NULL)
1382         {
1383              handler_cv = simpleserver_sv2cv( init_ref );
1384              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1385         }
1386
1387         SPAGAIN;
1388
1389         temp = hv_fetch(href, "IMP_ID", 6, 1);
1390         ptr = SvPV(*temp, len);
1391         q->implementation_id = nmem_strdup(nmem, ptr);
1392
1393         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1394         ptr = SvPV(*temp, len);
1395         q->implementation_name = nmem_strdup(nmem, ptr);
1396
1397         temp = hv_fetch(href, "IMP_VER", 7, 1);
1398         ptr = SvPV(*temp, len);
1399         q->implementation_version = nmem_strdup(nmem, ptr);
1400
1401         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1402         r->errcode = SvIV(*temp);
1403
1404         temp = hv_fetch(href, "ERR_STR", 7, 1);
1405         ptr = SvPV(*temp, len);
1406         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1407         strcpy(r->errstring, ptr);
1408
1409         temp = hv_fetch(href, "HANDLE", 6, 1);
1410         handle= newSVsv(*temp);
1411         zhandle->handle = handle;
1412
1413         r->handle = zhandle;
1414
1415         hv_undef(href);
1416         sv_free((SV*) href);
1417
1418         PUTBACK;
1419         FREETMPS;
1420         LEAVE;
1421
1422         return r;
1423 }
1424
1425 void bend_close(void *handle)
1426 {
1427         HV *href;
1428         Zfront_handle *zhandle = (Zfront_handle *)handle;
1429         CV* handler_cv = 0;
1430         int stop_flag = 0;
1431         dSP;
1432         ENTER;
1433         SAVETMPS;
1434
1435         if (close_ref)
1436         {
1437                 href = newHV();
1438                 hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1439
1440                 PUSHMARK(sp);
1441
1442                 XPUSHs(sv_2mortal(newRV((SV *)href)));
1443
1444                 PUTBACK;
1445
1446                 handler_cv = simpleserver_sv2cv( close_ref );
1447                 perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1448
1449                 SPAGAIN;
1450
1451                 sv_free((SV*) href);
1452         }
1453         else
1454                 sv_free(zhandle->handle);
1455         PUTBACK;
1456         FREETMPS;
1457         LEAVE;
1458         stop_flag = zhandle->stop_flag;
1459         nmem_destroy(zhandle->nmem);
1460         simpleserver_free();
1461
1462         if (stop_flag)
1463                 exit(0);
1464         return;
1465 }
1466
1467
1468 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1469
1470 PROTOTYPES: DISABLE
1471
1472
1473 void
1474 set_init_handler(arg)
1475                 SV *arg
1476         CODE:
1477                 init_ref = newSVsv(arg);
1478
1479
1480 void
1481 set_close_handler(arg)
1482                 SV *arg
1483         CODE:
1484                 close_ref = newSVsv(arg);
1485
1486
1487 void
1488 set_sort_handler(arg)
1489                 SV *arg
1490         CODE:
1491                 sort_ref = newSVsv(arg);
1492
1493 void
1494 set_search_handler(arg)
1495                 SV *arg
1496         CODE:
1497                 search_ref = newSVsv(arg);
1498
1499
1500 void
1501 set_fetch_handler(arg)
1502                 SV *arg
1503         CODE:
1504                 fetch_ref = newSVsv(arg);
1505
1506
1507 void
1508 set_present_handler(arg)
1509                 SV *arg
1510         CODE:
1511                 present_ref = newSVsv(arg);
1512
1513
1514 void
1515 set_esrequest_handler(arg)
1516                 SV *arg
1517         CODE:
1518                 esrequest_ref = newSVsv(arg);
1519
1520
1521 void
1522 set_delete_handler(arg)
1523                 SV *arg
1524         CODE:
1525                 delete_ref = newSVsv(arg);
1526
1527
1528 void
1529 set_scan_handler(arg)
1530                 SV *arg
1531         CODE:
1532                 scan_ref = newSVsv(arg);
1533
1534 void
1535 set_explain_handler(arg)
1536                 SV *arg
1537         CODE:
1538                 explain_ref = newSVsv(arg);
1539
1540 int
1541 start_server(...)
1542         PREINIT:
1543                 char **argv;
1544                 char **argv_buf;
1545                 char *ptr;
1546                 int i;
1547                 STRLEN len;
1548         CODE:
1549                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1550                 argv = argv_buf;
1551                 for (i = 0; i < items; i++)
1552                 {
1553                         ptr = SvPV(ST(i), len);
1554                         *argv_buf = (char *)xmalloc(len + 1);
1555                         strcpy(*argv_buf++, ptr);
1556                 }
1557                 *argv_buf = NULL;
1558                 root_perl_context = PERL_GET_CONTEXT;
1559                 nmem_mutex_create(&simpleserver_mutex);
1560 #if 0
1561                 /* only for debugging perl_clone .. */
1562                 tst_clones();
1563 #endif
1564
1565                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1566         OUTPUT:
1567                 RETVAL
1568
1569
1570 int
1571 ScanSuccess()
1572         CODE:
1573                 RETVAL = BEND_SCAN_SUCCESS;
1574         OUTPUT:
1575                 RETVAL
1576
1577 int
1578 ScanPartial()
1579         CODE:
1580                 RETVAL = BEND_SCAN_PARTIAL;
1581         OUTPUT:
1582                 RETVAL
1583
1584
1585 void
1586 yazlog(arg)
1587                 SV *arg
1588         CODE:
1589                 STRLEN len;
1590                 char *ptr;
1591                 ptr = SvPV(arg, len);
1592                 yaz_log(YLOG_LOG, "%.*s", len, ptr);