SimpleServer.xs

   1 /*
   2  * $Id: SimpleServer.xs,v 1.29 2004-06-05 22:18:09 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 <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 #if 1
 107 int tst_clones(void)
 108 {
 109     int i;
 110     PerlInterpreter *parent = PERL_GET_CONTEXT;
 111     for (i = 0; i<500; i++)
 112     {
 113         PerlInterpreter *perl_interp;
 114
 115         PL_perl_destruct_level = 2;
 116         perl_interp = perl_clone(parent, 0);
 117         PL_perl_destruct_level = 2;
 118         perl_destruct(perl_interp);
 119         perl_free(perl_interp);
 120     }
 121     exit (0);
 122 }
 123 #endif
 124
 125 int simpleserver_clone(void) {
 126 #ifdef USE_ITHREADS
 127      nmem_mutex_enter(simpleserver_mutex);
 128      if (1)
 129      {
 130          PerlInterpreter *current = PERL_GET_CONTEXT;
 131
 132          /* if current is unset, then we're in a new thread with
 133           * no Perl interpreter for it. So we must create one .
 134           * This will only happen when threaded is used..
 135           */
 136          if (!current) {
 137              PerlInterpreter *perl_interp;
 138              PERL_SET_CONTEXT( root_perl_context );
 139              perl_interp = perl_clone(root_perl_context, 0);
 140              PERL_SET_CONTEXT( perl_interp );
 141          }
 142      }
 143      nmem_mutex_leave(simpleserver_mutex);
 144 #endif
 145      return 0;
 146 }
 147
 148
 149 void simpleserver_free(void) {
 150     nmem_mutex_enter(simpleserver_mutex);
 151     if (1)
 152     {
 153         PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 154
 155         /* If current Perl Interp is different from root interp, then
 156          * we're in threaded mode and we must destroy..
 157          */
 158         if (current_interp != root_perl_context) {
 159             PL_perl_destruct_level = 2;
 160             PERL_SET_CONTEXT(current_interp);
 161             perl_destruct(current_interp);
 162             perl_free(current_interp);
 163         }
 164     }
 165     nmem_mutex_leave(simpleserver_mutex);
 166 }
 167
 168
 169 Z_GenericRecord *read_grs1(char *str, ODR o)
 170 {
 171         int type, ivalue;
 172         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 173         char value[GRS_BUF_SIZE+1];
 174         Z_GenericRecord *r = 0;
 175
 176         original = str;
 177         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 178         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 179         r->num_elements = 0;
 180
 181         for (;;)
 182         {
 183                 Z_TaggedElement *t;
 184                 Z_ElementData *c;
 185                 int len;
 186
 187                 ptr = strchr(str, '\n');
 188                 if (!ptr) {
 189                         return r;
 190                 }
 191                 len = ptr - str;
 192                 if (len > GRS_BUF_SIZE) {
 193                     yaz_log(LOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 194                     len = GRS_BUF_SIZE;
 195                 }
 196                 strncpy(line, str, len);
 197                 line[len] = 0;
 198                 buf = line;
 199                 str = ptr + 1;
 200                 while (*buf && isspace(*buf))
 201                         buf++;
 202                 if (*buf == '}') {
 203                         memmove(original, str, strlen(str));
 204                         return r;
 205                 }
 206                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 207                 {
 208                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 209                         return r;
 210                 }
 211                 if (!type && *value == '0')
 212                         return r;
 213                 if (!(buf = strchr(buf, ')')))
 214                         return r;
 215                 buf++;
 216                 while (*buf && isspace(*buf))
 217                         buf++;
 218                 if (r->num_elements >= GRS_MAX_FIELDS)
 219                 {
 220                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 221                         exit(0);
 222                 }
 223                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 224                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 225                 *t->tagType = type;
 226                 t->tagValue = (Z_StringOrNumeric *)
 227                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 228                 if ((ivalue = atoi(value)))
 229                 {
 230                         t->tagValue->which = Z_StringOrNumeric_numeric;
 231                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 232                         *t->tagValue->u.numeric = ivalue;
 233                 }
 234                 else
 235                 {
 236                         t->tagValue->which = Z_StringOrNumeric_string;
 237                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 238                         strcpy(t->tagValue->u.string, value);
 239                 }
 240                 t->tagOccurrence = 0;
 241                 t->metaData = 0;
 242                 t->appliedVariant = 0;
 243                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 244                 if (*buf == '{')
 245                 {
 246                         c->which = Z_ElementData_subtree;
 247                         c->u.subtree = read_grs1(str, o);
 248                 }
 249                 else
 250                 {
 251                         c->which = Z_ElementData_string;
 252                         c->u.string = odr_strdup(o, buf);
 253                 }
 254                 r->num_elements++;
 255         }
 256 }
 257
 258
 259
 260
 261 static void oid2str(Odr_oid *o, WRBUF buf)
 262 {
 263     for (; *o >= 0; o++) {
 264         char ibuf[16];
 265         sprintf(ibuf, "%d", *o);
 266         wrbuf_puts(buf, ibuf);
 267         if (o[1] > 0)
 268             wrbuf_putc(buf, '.');
 269     }
 270 }
 271
 272
 273 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 274 {
 275     switch (s->which) {
 276         case Z_RPNStructure_simple: {
 277             Z_Operand *o = s->u.simple;
 278
 279             switch (o->which) {
 280                 case Z_Operand_APT: {
 281                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 282
 283                     if (at->attributes) {
 284                         int i;
 285                         char ibuf[16];
 286
 287                         for (i = 0; i < at->attributes->num_attributes; i++) {
 288                             wrbuf_puts(buf, "@attr ");
 289                             if (at->attributes->attributes[i]->attributeSet) {
 290                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 291                                 wrbuf_putc(buf, ' ');
 292                             }
 293                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 294                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 295                             wrbuf_puts(buf, ibuf);
 296                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 297                             wrbuf_puts(buf, ibuf);
 298                         }
 299                     }
 300                     switch (at->term->which) {
 301                         case Z_Term_general: {
 302                             wrbuf_putc(buf, '"');
 303                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 304                             wrbuf_puts(buf, "\" ");
 305                             break;
 306                         }
 307                         default: abort();
 308                     }
 309                     break;
 310                 }
 311                 default: abort();
 312             }
 313             break;
 314         }
 315         case Z_RPNStructure_complex: {
 316             Z_Complex *c = s->u.complex;
 317
 318             switch (c->roperator->which) {
 319                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 320                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 321                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 322                 case Z_Operator_prox: abort();
 323                 default: abort();
 324             }
 325             if (!rpn2pquery(c->s1, buf))
 326                 return 0;
 327             if (!rpn2pquery(c->s2, buf))
 328                 return 0;
 329             break;
 330         }
 331         default: abort();
 332     }
 333     return 1;
 334 }
 335
 336
 337 WRBUF zquery2pquery(Z_Query *q)
 338 {
 339     WRBUF buf = wrbuf_alloc();
 340
 341     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 342         return 0;
 343     if (q->u.type_1->attributeSetId) {
 344         /* Output attribute set ID */
 345         wrbuf_puts(buf, "@attrset ");
 346         oid2str(q->u.type_1->attributeSetId, buf);
 347         wrbuf_putc(buf, ' ');
 348     }
 349     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 350 }
 351
 352
 353 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 354 #include <stdarg.h>
 355 void fatal(char *fmt, ...)
 356 {
 357     va_list ap;
 358
 359     fprintf(stderr, "FATAL (yazwrap): ");
 360     va_start(ap, fmt);
 361     vfprintf(stderr, fmt, ap);
 362     va_end(ap);
 363     fprintf(stderr, "\n");
 364     abort();
 365 }
 366
 367
 368 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 369 /*
 370  * Creates a new Perl object of type `class'; the newly-created scalar
 371  * that is a reference to the blessed thingy `referent' is returned.
 372  */
 373 static SV *newObject(char *class, SV *referent)
 374 {
 375     HV *stash;
 376     SV *sv;
 377
 378     sv = newRV_noinc((SV*) referent);
 379     stash = gv_stashpv(class, 0);
 380     if (stash == 0)
 381         fatal("attempt to create object of undefined class '%s'", class);
 382     /*assert(stash != 0);*/
 383     sv_bless(sv, stash);
 384     return sv;
 385 }
 386
 387
 388 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 389 static void setMember(HV *hv, char *name, SV *val)
 390 {
 391     /* We don't increment `val's reference count -- I think this is
 392      * right because it's created with a refcount of 1, and in fact
 393      * the reference via this hash is the only reference to it in
 394      * general.
 395      */
 396     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 397         fatal("couldn't store member in hash");
 398 }
 399
 400
 401 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 402 static SV *translateOID(Odr_oid *x)
 403 {
 404     /* Yaz represents an OID by an int array terminated by a negative
 405      * value, typically -1; we represent it as a reference to a
 406      * blessed scalar string of "."-separated elements.
 407      */
 408     char buf[1000];
 409     int i;
 410
 411     *buf = '\0';
 412     for (i = 0; x[i] >= 0; i++) {
 413         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 414         if (x[i+1] >- 0)
 415             strcat(buf, ".");
 416     }
 417
 418     /*
 419      * ### We'd like to return a blessed scalar (string) here, but of
 420      *  course you can't do that in Perl: only references can be
 421      *  blessed, so we'd have to return a _reference_ to a string, and
 422      *  bless _that_.  Better to do without the blessing, I think.
 423      */
 424     if (1) {
 425         return newSVpv(buf, 0);
 426     } else {
 427         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 428     }
 429 }
 430
 431
 432 static SV *rpn2perl(Z_RPNStructure *s)
 433 {
 434     SV *sv;
 435     HV *hv;
 436     AV *av;
 437
 438     switch (s->which) {
 439     case Z_RPNStructure_simple: {
 440         Z_Operand *o = s->u.simple;
 441         Z_AttributesPlusTerm *at;
 442         if (o->which != Z_Operand_APT)
 443             fatal("can't handle RPN simples other than APT");
 444         at = o->u.attributesPlusTerm;
 445         if (at->term->which != Z_Term_general)
 446             fatal("can't handle RPN terms other than general");
 447
 448         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 449         if (at->attributes) {
 450             int i;
 451             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 452                                   (SV*) (av = newAV()));
 453             for (i = 0; i < at->attributes->num_attributes; i++) {
 454                 Z_AttributeElement *elem = at->attributes->attributes[i];
 455                 HV *hv2;
 456                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 457                                     (SV*) (hv2 = newHV()));
 458                 if (elem->attributeSet)
 459                     setMember(hv2, "attributeSet",
 460                               translateOID(elem->attributeSet));
 461                 setMember(hv2, "attributeType",
 462                           newSViv(*elem->attributeType));
 463                 assert(elem->which == Z_AttributeValue_numeric);
 464                 setMember(hv2, "attributeValue",
 465                           newSViv(*elem->value.numeric));
 466                 av_push(av, tmp);
 467             }
 468             setMember(hv, "attributes", attrs);
 469         }
 470         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 471                                       at->term->u.general->len));
 472         return sv;
 473     }
 474     case Z_RPNStructure_complex: {
 475         SV *tmp;
 476         Z_Complex *c = s->u.complex;
 477         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 478         switch (c->roperator->which) {
 479         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 480         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 481         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 482         case Z_Operator_prox:    fatal("proximity not yet supported");
 483         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 484         }
 485         sv = newObject(type, (SV*) (av = newAV()));
 486         if ((tmp = rpn2perl(c->s1)) == 0)
 487             return 0;
 488         av_push(av, tmp);
 489         if ((tmp = rpn2perl(c->s2)) == 0)
 490             return 0;
 491         av_push(av, tmp);
 492         return sv;
 493     }
 494     default: fatal("unknown RPN node type %d", (int) s->which);
 495     }
 496
 497     return 0;
 498 }
 499
 500
 501 static SV *zquery2perl(Z_Query *q)
 502 {
 503     SV *sv;
 504     HV *hv;
 505
 506     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 507         return 0;
 508     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 509     if (q->u.type_1->attributeSetId)
 510         setMember(hv, "attributeSet",
 511                   translateOID(q->u.type_1->attributeSetId));
 512     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 513     return sv;
 514 }
 515
 516
 517 int bend_sort(void *handle, bend_sort_rr *rr)
 518 {
 519         HV *href;
 520         AV *aref;
 521         SV **temp;
 522         SV *err_code;
 523         SV *err_str;
 524         SV *status;
 525         STRLEN len;
 526         char *ptr;
 527         char *ODR_err_str;
 528         char **input_setnames;
 529         Zfront_handle *zhandle = (Zfront_handle *)handle;
 530         int i;
 531
 532         dSP;
 533         ENTER;
 534         SAVETMPS;
 535
 536         aref = newAV();
 537         input_setnames = rr->input_setnames;
 538         for (i = 0; i < rr->num_input_setnames; i++)
 539         {
 540                 av_push(aref, newSVpv(*input_setnames++, 0));
 541         }
 542         href = newHV();
 543         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 544         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 545         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 546         hv_store(href, "STATUS", 6, newSViv(0), 0);
 547
 548         PUSHMARK(sp);
 549
 550         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 551
 552         PUTBACK;
 553
 554         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 555
 556         SPAGAIN;
 557
 558         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 559         err_code = newSVsv(*temp);
 560
 561         temp = hv_fetch(href, "ERR_STR", 7, 1);
 562         err_str = newSVsv(*temp);
 563
 564         temp = hv_fetch(href, "STATUS", 6, 1);
 565         status = newSVsv(*temp);
 566
 567
 568         PUTBACK;
 569         FREETMPS;
 570         LEAVE;
 571
 572         hv_undef(href),
 573         av_undef(aref);
 574         rr->errcode = SvIV(err_code);
 575         rr->sort_status = SvIV(status);
 576         ptr = SvPV(err_str, len);
 577         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 578         strcpy(ODR_err_str, ptr);
 579         rr->errstring = ODR_err_str;
 580
 581         sv_free(err_code);
 582         sv_free(err_str);
 583         sv_free(status);
 584
 585         return 0;
 586 }
 587
 588
 589 int bend_search(void *handle, bend_search_rr *rr)
 590 {
 591         HV *href;
 592         AV *aref;
 593         SV **temp;
 594         char *ODR_errstr;
 595         STRLEN len;
 596         int i;
 597         char **basenames;
 598         int n;
 599         WRBUF query;
 600         char *ptr;
 601         SV *point;
 602         SV *ODR_point;
 603         Zfront_handle *zhandle = (Zfront_handle *)handle;
 604         CV* handler_cv = 0;
 605
 606         dSP;
 607         ENTER;
 608         SAVETMPS;
 609
 610         aref = newAV();
 611         basenames = rr->basenames;
 612         for (i = 0; i < rr->num_bases; i++)
 613         {
 614                 av_push(aref, newSVpv(*basenames++, 0));
 615         }
 616 #if ENABLE_STOP_SERVER
 617         if (rr->num_bases == 1 && !strcmp(rr->basenames[0], "XXstop"))
 618         {
 619                 zhandle->stop_flag = 1;
 620         }
 621 #endif
 622         href = newHV();
 623         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 624         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 625         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 626         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 627         hv_store(href, "HITS", 4, newSViv(0), 0);
 628         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 629         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 630         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 631         hv_store(href, "RPN", 3, zquery2perl(rr->query), 0);
 632         query = zquery2pquery(rr->query);
 633         if (query)
 634         {
 635                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 636         }
 637         else
 638         {
 639                 rr->errcode = 108;
 640         }
 641         PUSHMARK(sp);
 642
 643         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 644
 645         PUTBACK;
 646
 647         handler_cv = simpleserver_sv2cv( search_ref );
 648         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 649
 650         SPAGAIN;
 651
 652         temp = hv_fetch(href, "HITS", 4, 1);
 653         rr->hits = SvIV(*temp);
 654
 655         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 656         rr->errcode = SvIV(*temp);
 657
 658         temp = hv_fetch(href, "ERR_STR", 7, 1);
 659         ptr = SvPV(*temp, len);
 660         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 661         strcpy(ODR_errstr, ptr);
 662         rr->errstring = ODR_errstr;
 663
 664         temp = hv_fetch(href, "HANDLE", 6, 1);
 665         point = newSVsv(*temp);
 666
 667         hv_undef(href);
 668         av_undef(aref);
 669
 670         zhandle->handle = point;
 671         sv_free( (SV*) aref);
 672         sv_free( (SV*) href);
 673         wrbuf_free(query, 1);
 674         PUTBACK;
 675         FREETMPS;
 676         LEAVE;
 677         return 0;
 678 }
 679
 680
 681 /* ### this is worryingly similar to oid2str() */
 682 WRBUF oid2dotted(int *oid)
 683 {
 684
 685         WRBUF buf = wrbuf_alloc();
 686         int dot = 0;
 687
 688         for (; *oid != -1 ; oid++)
 689         {
 690                 char ibuf[16];
 691                 if (dot)
 692                 {
 693                         wrbuf_putc(buf, '.');
 694                 }
 695                 else
 696                 {
 697                         dot = 1;
 698                 }
 699                 sprintf(ibuf, "%d", *oid);
 700                 wrbuf_puts(buf, ibuf);
 701         }
 702         return buf;
 703 }
 704
 705
 706 int dotted2oid(char *dotted, int *buffer)
 707 {
 708         int *oid;
 709         char ibuf[16];
 710         char *ptr;
 711         int n = 0;
 712
 713         ptr = ibuf;
 714         oid = buffer;
 715         while (*dotted)
 716         {
 717                 if (*dotted == '.')
 718                 {
 719                         n++;
 720                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 721                         {
 722                                 *oid = -1;
 723                                 return -1;
 724                         }
 725                         *ptr = 0;
 726                         sscanf(ibuf, "%d", oid++);
 727                         ptr = ibuf;
 728                         dotted++;
 729
 730                 }
 731                 else
 732                 {
 733                         *ptr++ = *dotted++;
 734                 }
 735         }
 736         if (n < MAX_OID)
 737         {
 738                 *ptr = 0;
 739                 sscanf(ibuf, "%d", oid++);
 740         }
 741         *oid = -1;
 742         return 0;
 743 }
 744
 745
 746 int bend_fetch(void *handle, bend_fetch_rr *rr)
 747 {
 748         HV *href;
 749         SV **temp;
 750         SV *basename;
 751         SV *record;
 752         SV *last;
 753         SV *err_code;
 754         SV *err_string;
 755         SV *sur_flag;
 756         SV *point;
 757         SV *rep_form;
 758         char *ptr;
 759         char *ODR_record;
 760         char *ODR_basename;
 761         char *ODR_errstr;
 762         int *ODR_oid_buf;
 763         oident *oid;
 764         WRBUF oid_dotted;
 765         Zfront_handle *zhandle = (Zfront_handle *)handle;
 766         CV* handler_cv = 0;
 767
 768         Z_RecordComposition *composition;
 769         Z_ElementSetNames *simple;
 770         STRLEN length;
 771
 772         dSP;
 773         ENTER;
 774         SAVETMPS;
 775
 776         rr->errcode = 0;
 777         href = newHV();
 778         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 779         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 780         oid_dotted = oid2dotted(rr->request_format_raw);
 781         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 782         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 783         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 784         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 785         hv_store(href, "LAST", 4, newSViv(0), 0);
 786         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 787         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 788         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 789         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 790         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 791         if (rr->comp)
 792         {
 793                 composition = rr->comp;
 794                 if (composition->which == Z_RecordComp_simple)
 795                 {
 796                         simple = composition->u.simple;
 797                         if (simple->which == Z_ElementSetNames_generic)
 798                         {
 799                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 800                         }
 801                         else
 802                         {
 803                                 rr->errcode = 26;
 804                         }
 805                 }
 806                 else
 807                 {
 808                         rr->errcode = 26;
 809                 }
 810         }
 811
 812         PUSHMARK(sp);
 813
 814         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 815
 816         PUTBACK;
 817
 818         handler_cv = simpleserver_sv2cv( fetch_ref );
 819         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 820
 821         SPAGAIN;
 822
 823         temp = hv_fetch(href, "BASENAME", 8, 1);
 824         basename = newSVsv(*temp);
 825
 826         temp = hv_fetch(href, "RECORD", 6, 1);
 827         record = newSVsv(*temp);
 828
 829         temp = hv_fetch(href, "LAST", 4, 1);
 830         last = newSVsv(*temp);
 831
 832         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 833         err_code = newSVsv(*temp);
 834
 835         temp = hv_fetch(href, "ERR_STR", 7, 1),
 836         err_string = newSVsv(*temp);
 837
 838         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 839         sur_flag = newSVsv(*temp);
 840
 841         temp = hv_fetch(href, "REP_FORM", 8, 1);
 842         rep_form = newSVsv(*temp);
 843
 844         temp = hv_fetch(href, "HANDLE", 6, 1);
 845         point = newSVsv(*temp);
 846
 847
 848         hv_undef(href);
 849
 850         ptr = SvPV(basename, length);
 851         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 852         strcpy(ODR_basename, ptr);
 853         rr->basename = ODR_basename;
 854
 855         ptr = SvPV(rep_form, length);
 856         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 857         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 858         {
 859                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 860         }
 861         rr->output_format_raw = ODR_oid_buf;
 862
 863         ptr = SvPV(record, length);
 864         oid = oid_getentbyoid(ODR_oid_buf);
 865         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 866         {
 867                 rr->record = (char *) read_grs1(ptr, rr->stream);
 868                 rr->len = -1;
 869         }
 870         else
 871         {
 872                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 873                 strcpy(ODR_record, ptr);
 874                 rr->record = ODR_record;
 875                 rr->len = length;
 876         }
 877         zhandle->handle = point;
 878         handle = zhandle;
 879         rr->last_in_set = SvIV(last);
 880
 881         if (!(rr->errcode))
 882         {
 883                 rr->errcode = SvIV(err_code);
 884                 ptr = SvPV(err_string, length);
 885                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 886                 strcpy(ODR_errstr, ptr);
 887                 rr->errstring = ODR_errstr;
 888         }
 889         rr->surrogate_flag = SvIV(sur_flag);
 890
 891         wrbuf_free(oid_dotted, 1);
 892         sv_free((SV*) href);
 893         sv_free(basename);
 894         sv_free(record);
 895         sv_free(last);
 896         sv_free(err_string);
 897         sv_free(err_code),
 898         sv_free(sur_flag);
 899         sv_free(rep_form);
 900
 901         PUTBACK;
 902         FREETMPS;
 903         LEAVE;
 904
 905         return 0;
 906 }
 907
 908
 909 int bend_present(void *handle, bend_present_rr *rr)
 910 {
 911         HV *href;
 912         SV **temp;
 913         SV *err_code;
 914         SV *err_string;
 915         SV *hits;
 916         SV *point;
 917         STRLEN len;
 918         Z_RecordComposition *composition;
 919         Z_ElementSetNames *simple;
 920         char *ODR_errstr;
 921         char *ptr;
 922         Zfront_handle *zhandle = (Zfront_handle *)handle;
 923         CV* handler_cv = 0;
 924
 925 /*      WRBUF oid_dotted; */
 926
 927         dSP;
 928         ENTER;
 929         SAVETMPS;
 930
 931         href = newHV();
 932         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 933         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 934         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 935         hv_store(href, "START", 5, newSViv(rr->start), 0);
 936         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 937         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 938         /*oid_dotted = oid2dotted(rr->request_format_raw);
 939         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 940         hv_store(href, "HITS", 4, newSViv(0), 0);
 941         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 942         if (rr->comp)
 943         {
 944                 composition = rr->comp;
 945                 if (composition->which == Z_RecordComp_simple)
 946                 {
 947                         simple = composition->u.simple;
 948                         if (simple->which == Z_ElementSetNames_generic)
 949                         {
 950                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 951                         }
 952                         else
 953                         {
 954                                 rr->errcode = 26;
 955                                 return 0;
 956                         }
 957                 }
 958                 else
 959                 {
 960                         rr->errcode = 26;
 961                         return 0;
 962                 }
 963         }
 964
 965         PUSHMARK(sp);
 966
 967         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 968
 969         PUTBACK;
 970
 971         handler_cv = simpleserver_sv2cv( present_ref );
 972         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 973
 974         SPAGAIN;
 975
 976         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 977         err_code = newSVsv(*temp);
 978
 979         temp = hv_fetch(href, "ERR_STR", 7, 1);
 980         err_string = newSVsv(*temp);
 981
 982         temp = hv_fetch(href, "HITS", 4, 1);
 983         hits = newSVsv(*temp);
 984
 985         temp = hv_fetch(href, "HANDLE", 6, 1);
 986         point = newSVsv(*temp);
 987
 988         PUTBACK;
 989         FREETMPS;
 990         LEAVE;
 991
 992         hv_undef(href);
 993         rr->errcode = SvIV(err_code);
 994         rr->hits = SvIV(hits);
 995
 996         ptr = SvPV(err_string, len);
 997         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 998         strcpy(ODR_errstr, ptr);
 999         rr->errstring = ODR_errstr;
1000 /*      wrbuf_free(oid_dotted, 1);*/
1001         zhandle->handle = point;
1002         handle = zhandle;
1003         sv_free(err_code);
1004         sv_free(err_string);
1005         sv_free(hits);
1006         sv_free( (SV*) href);
1007
1008         return 0;
1009 }
1010
1011
1012 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
1013 {
1014         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
1015         return 0;
1016 }
1017
1018
1019 int bend_delete(void *handle, bend_delete_rr *rr)
1020 {
1021         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
1022         return 0;
1023 }
1024
1025
1026 int bend_scan(void *handle, bend_scan_rr *rr)
1027 {
1028         HV *href;
1029         AV *aref;
1030         AV *list;
1031         AV *entries;
1032         HV *scan_item;
1033         struct scan_entry *scan_list;
1034         struct scan_entry *buffer;
1035         int *step_size = rr->step_size;
1036         int i;
1037         char **basenames;
1038         SV **temp;
1039         SV *err_code = sv_newmortal();
1040         SV *err_str = sv_newmortal();
1041         SV *point = sv_newmortal();
1042         SV *status = sv_newmortal();
1043         SV *number = sv_newmortal();
1044         char *ptr;
1045         char *ODR_errstr;
1046         STRLEN len;
1047         int term_len;
1048         SV *term_tmp;
1049         SV *entries_ref;
1050         Zfront_handle *zhandle = (Zfront_handle *)handle;
1051         CV* handler_cv = 0;
1052
1053         dSP;
1054         ENTER;
1055         SAVETMPS;
1056         href = newHV();
1057         list = newAV();
1058         if (rr->term->term->which == Z_Term_general)
1059         {
1060                 term_len = rr->term->term->u.general->len;
1061                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1062         } else {
1063                 rr->errcode = 229;      /* Unsupported term type */
1064                 return 0;
1065         }
1066         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1067         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1068         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1069         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1070         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1071         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1072         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1073         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1074         aref = newAV();
1075         basenames = rr->basenames;
1076         for (i = 0; i < rr->num_bases; i++)
1077         {
1078                 av_push(aref, newSVpv(*basenames++, 0));
1079         }
1080         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1081
1082         PUSHMARK(sp);
1083
1084         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1085
1086         PUTBACK;
1087
1088         handler_cv = simpleserver_sv2cv( scan_ref );
1089         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1090
1091         SPAGAIN;
1092
1093         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1094         err_code = newSVsv(*temp);
1095
1096         temp = hv_fetch(href, "ERR_STR", 7, 1);
1097         err_str = newSVsv(*temp);
1098
1099         temp = hv_fetch(href, "HANDLE", 6, 1);
1100         point = newSVsv(*temp);
1101
1102         temp = hv_fetch(href, "STATUS", 6, 1);
1103         status = newSVsv(*temp);
1104
1105         temp = hv_fetch(href, "NUMBER", 6, 1);
1106         number = newSVsv(*temp);
1107
1108         temp = hv_fetch(href, "ENTRIES", 7, 1);
1109         entries_ref = newSVsv(*temp);
1110
1111         PUTBACK;
1112         FREETMPS;
1113         LEAVE;
1114
1115         ptr = SvPV(err_str, len);
1116         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1117         strcpy(ODR_errstr, ptr);
1118         rr->errstring = ODR_errstr;
1119         rr->errcode = SvIV(err_code);
1120         rr->num_entries = SvIV(number);
1121         rr->status = SvIV(status);
1122         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1123         buffer = scan_list;
1124         entries = (AV *)SvRV(entries_ref);
1125         for (i = 0; i < rr->num_entries; i++)
1126         {
1127                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1128                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1129                 ptr = SvPV(*temp, len);
1130                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1131                 strcpy(buffer->term, ptr);
1132                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1133                 buffer->occurrences = SvIV(*temp);
1134                 buffer++;
1135                 hv_undef(scan_item);
1136         }
1137         rr->entries = scan_list;
1138         zhandle->handle = point;
1139         handle = zhandle;
1140         sv_free(err_code);
1141         sv_free(err_str);
1142         sv_free(status);
1143         sv_free(number);
1144         hv_undef(href);
1145         sv_free((SV *)href);
1146         av_undef(aref);
1147         sv_free((SV *)aref);
1148         av_undef(list);
1149         sv_free((SV *)list);
1150         av_undef(entries);
1151         /*sv_free((SV *)entries);*/
1152         sv_free(entries_ref);
1153
1154         return 0;
1155 }
1156
1157 bend_initresult *bend_init(bend_initrequest *q)
1158 {
1159         int dummy = simpleserver_clone();
1160         bend_initresult *r = (bend_initresult *)
1161                 odr_malloc (q->stream, sizeof(*r));
1162         char *ptr;
1163         char *user = NULL;
1164         char *passwd = NULL;
1165         CV* handler_cv = 0;
1166         dSP;
1167         STRLEN len;
1168         NMEM nmem = nmem_create();
1169         Zfront_handle *zhandle =  (Zfront_handle *) nmem_malloc (nmem,
1170                         sizeof(*zhandle));
1171         SV *handle;
1172         HV *href;
1173         SV **temp;
1174         SV *status;
1175
1176         ENTER;
1177         SAVETMPS;
1178
1179         zhandle->nmem = nmem;
1180         zhandle->stop_flag = 0;
1181         /*q->bend_sort = bend_sort;*/
1182         if (search_ref)
1183         {
1184                 q->bend_search = bend_search;
1185         }
1186         if (present_ref)
1187         {
1188                 q->bend_present = bend_present;
1189         }
1190         /*q->bend_esrequest = bend_esrequest;*/
1191         /*q->bend_delete = bend_delete;*/
1192         if (fetch_ref)
1193         {
1194                 q->bend_fetch = bend_fetch;
1195         }
1196         if (scan_ref)
1197         {
1198                 q->bend_scan = bend_scan;
1199         }
1200
1201         href = newHV();
1202         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1203         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1204         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1205         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1206         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1207         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1208         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1209         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1210         if (q->auth) {
1211             if (q->auth->which == Z_IdAuthentication_open) {
1212                 char *openpass = xstrdup (q->auth->u.open);
1213                 char *cp = strchr (openpass, '/');
1214                 if (cp) {
1215                     *cp = '\0';
1216                     user = nmem_strdup (odr_getmem (q->stream), openpass);
1217                     passwd = nmem_strdup (odr_getmem (q->stream), cp + 1);
1218                 }
1219                 xfree(openpass);
1220             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1221                 user = q->auth->u.idPass->userId;
1222                 passwd = q->auth->u.idPass->password;
1223             }
1224             /* ### some code paths have user/password unassigned here */
1225             hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1226             hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1227         }
1228
1229         PUSHMARK(sp);
1230
1231         XPUSHs(sv_2mortal(newRV((SV*) href)));
1232
1233         PUTBACK;
1234
1235         if (init_ref != NULL)
1236         {
1237              handler_cv = simpleserver_sv2cv( init_ref );
1238              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1239         }
1240
1241         SPAGAIN;
1242
1243         temp = hv_fetch(href, "IMP_ID", 6, 1);
1244         ptr = SvPV(*temp, len);
1245         q->implementation_id = nmem_strdup(nmem, ptr);
1246
1247         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1248         ptr = SvPV(*temp, len);
1249         q->implementation_name = nmem_strdup(nmem, ptr);
1250
1251         temp = hv_fetch(href, "IMP_VER", 7, 1);
1252         ptr = SvPV(*temp, len);
1253         q->implementation_version = nmem_strdup(nmem, ptr);
1254
1255         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1256         r->errcode = SvIV(*temp);
1257
1258         temp = hv_fetch(href, "ERR_STR", 7, 1);
1259         ptr = SvPV(*temp, len);
1260         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1261         strcpy(r->errstring, ptr);
1262
1263         temp = hv_fetch(href, "HANDLE", 6, 1);
1264         handle= newSVsv(*temp);
1265         zhandle->handle = handle;
1266
1267         r->handle = zhandle;
1268
1269         hv_undef(href);
1270         sv_free((SV*) href);
1271
1272         PUTBACK;
1273         FREETMPS;
1274         LEAVE;
1275
1276         return r;
1277 }
1278
1279 void bend_close(void *handle)
1280 {
1281         HV *href;
1282         Zfront_handle *zhandle = (Zfront_handle *)handle;
1283         SV **temp;
1284         CV* handler_cv = 0;
1285         int stop_flag = 0;
1286         dSP;
1287         ENTER;
1288         SAVETMPS;
1289
1290         if (close_ref)
1291         {
1292                 href = newHV();
1293                 hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1294
1295                 PUSHMARK(sp);
1296
1297                 XPUSHs(sv_2mortal(newRV((SV *)href)));
1298
1299                 PUTBACK;
1300
1301                 handler_cv = simpleserver_sv2cv( close_ref );
1302                 perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1303
1304                 SPAGAIN;
1305
1306                 sv_free((SV*) href);
1307         }
1308         sv_free(zhandle->handle);
1309         PUTBACK;
1310         FREETMPS;
1311         LEAVE;
1312         stop_flag = zhandle->stop_flag;
1313         nmem_destroy(zhandle->nmem);
1314         simpleserver_free();
1315
1316         if (stop_flag)
1317                 exit(0);
1318         return;
1319 }
1320
1321
1322 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1323
1324 void
1325 set_init_handler(arg)
1326                 SV *arg
1327         CODE:
1328                 init_ref = newSVsv(arg);
1329
1330
1331 void
1332 set_close_handler(arg)
1333                 SV *arg
1334         CODE:
1335                 close_ref = newSVsv(arg);
1336
1337
1338 void
1339 set_sort_handler(arg)
1340                 SV *arg
1341         CODE:
1342                 sort_ref = newSVsv(arg);
1343
1344 void
1345 set_search_handler(arg)
1346                 SV *arg
1347         CODE:
1348                 search_ref = newSVsv(arg);
1349
1350
1351 void
1352 set_fetch_handler(arg)
1353                 SV *arg
1354         CODE:
1355                 fetch_ref = newSVsv(arg);
1356
1357
1358 void
1359 set_present_handler(arg)
1360                 SV *arg
1361         CODE:
1362                 present_ref = newSVsv(arg);
1363
1364
1365 void
1366 set_esrequest_handler(arg)
1367                 SV *arg
1368         CODE:
1369                 esrequest_ref = newSVsv(arg);
1370
1371
1372 void
1373 set_delete_handler(arg)
1374                 SV *arg
1375         CODE:
1376                 delete_ref = newSVsv(arg);
1377
1378
1379 void
1380 set_scan_handler(arg)
1381                 SV *arg
1382         CODE:
1383                 scan_ref = newSVsv(arg);
1384
1385
1386 int
1387 start_server(...)
1388         PREINIT:
1389                 char **argv;
1390                 char **argv_buf;
1391                 char *ptr;
1392                 int i;
1393                 STRLEN len;
1394         CODE:
1395                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1396                 argv = argv_buf;
1397                 for (i = 0; i < items; i++)
1398                 {
1399                         ptr = SvPV(ST(i), len);
1400                         *argv_buf = (char *)xmalloc(len + 1);
1401                         strcpy(*argv_buf++, ptr);
1402                 }
1403                 *argv_buf = NULL;
1404                 root_perl_context = PERL_GET_CONTEXT;
1405                 nmem_mutex_create(&simpleserver_mutex);
1406 #if 0
1407                 /* only for debugging perl_clone .. */
1408                 tst_clones();
1409 #endif
1410
1411                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1412         OUTPUT:
1413                 RETVAL
1414
1415
1416 int
1417 ScanSuccess()
1418         CODE:
1419                 RETVAL = BEND_SCAN_SUCCESS;
1420         OUTPUT:
1421                 RETVAL
1422
1423 int
1424 ScanPartial()
1425         CODE:
1426                 RETVAL = BEND_SCAN_PARTIAL;
1427         OUTPUT:
1428                 RETVAL
1429
1430