SimpleServer.xs

   1 /*
   2
   3  * $Id: SimpleServer.xs,v 1.21 2004-05-11 12:15:16 sondberg Exp $
   4  * ----------------------------------------------------------------------
   5  *
   6  * Copyright (c) 2000, Index Data.
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software and
   9  * its documentation, in whole or in part, for any purpose, is hereby granted,
  10  * provided that:
  11  *
  12  * 1. This copyright and permission notice appear in all copies of the
  13  * software and its documentation. Notices of copyright or attribution
  14  * which appear at the beginning of any file must remain unchanged.
  15  *
  16  * 2. The name of Index Data or the individual authors may not be used to
  17  * endorse or promote products derived from this software without specific
  18  * prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
  21  * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  22  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  23  * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  24  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
  25  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
  26  * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  27  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  28  * OF THIS SOFTWARE.
  29  */
  30
  31
  32
  33 #include "EXTERN.h"
  34 #include "perl.h"
  35 #include "embed.h"
  36 #include "XSUB.h"
  37 #include <yaz/backend.h>
  38 #include <yaz/log.h>
  39 #include <yaz/wrbuf.h>
  40 #include <stdio.h>
  41 #include <unistd.h>
  42 #include <stdlib.h>
  43 #include <ctype.h>
  44 #define GRS_MAX_FIELDS 500
  45 #ifdef ASN_COMPILED
  46 #include <yaz/ill.h>
  47 #endif
  48 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  49 #define sv_undef PL_sv_undef
  50 #endif
  51
  52 typedef struct {
  53         SV *handle;
  54
  55         SV *init_ref;
  56         SV *close_ref;
  57         SV *sort_ref;
  58         SV *search_ref;
  59         SV *fetch_ref;
  60         SV *present_ref;
  61         SV *esrequest_ref;
  62         SV *delete_ref;
  63         SV *scan_ref;
  64 } Zfront_handle;
  65
  66 SV *init_ref = NULL;
  67 SV *close_ref = NULL;
  68 SV *sort_ref = NULL;
  69 SV *search_ref = NULL;
  70 SV *fetch_ref = NULL;
  71 SV *present_ref = NULL;
  72 SV *esrequest_ref = NULL;
  73 SV *delete_ref = NULL;
  74 SV *scan_ref = NULL;
  75 PerlInterpreter *root_perl_context;
  76 int MAX_OID = 15;
  77
  78 #define GRS_BUF_SIZE 512
  79
  80 CV * simpleserver_sv2cv(SV *handler) {
  81     STRLEN len;
  82     char *buf;
  83
  84     if (SvPOK(handler)) {
  85         CV *ret;
  86         buf = SvPV( handler, len);
  87         if ( !( ret = perl_get_cv(buf, FALSE ) ) ) {
  88             fprintf( stderr, "simpleserver_sv2cv: No such handler '%s'\n\n", buf );
  89             exit(1);
  90         }
  91
  92         return ret;
  93     } else {
  94         return (CV *) handler;
  95     }
  96 }
  97
  98
  99 int simpleserver_clone(void) {
 100      PerlInterpreter *current = PERL_GET_CONTEXT;
 101
 102      if (!current) {
 103          PerlInterpreter *perl_interp = perl_clone(root_perl_context, CLONEf_COPY_STACKS);
 104          PERL_SET_CONTEXT( perl_interp );
 105      }
 106      return 0;
 107 }
 108
 109
 110 void simpleserver_free(void) {
 111     PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 112
 113     perl_destruct(current_interp);
 114     perl_free(current_interp);
 115     PERL_SYS_TERM();
 116 }
 117
 118
 119 Z_GenericRecord *read_grs1(char *str, ODR o)
 120 {
 121         int type, ivalue;
 122         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 123         char value[GRS_BUF_SIZE+1];
 124         Z_GenericRecord *r = 0;
 125
 126         original = str;
 127         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 128         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 129         r->num_elements = 0;
 130
 131         for (;;)
 132         {
 133                 Z_TaggedElement *t;
 134                 Z_ElementData *c;
 135                 int len;
 136
 137                 ptr = strchr(str, '\n');
 138                 if (!ptr) {
 139                         return r;
 140                 }
 141                 len = ptr - str;
 142                 if (len > GRS_BUF_SIZE) {
 143                     yaz_log(LOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 144                     len = GRS_BUF_SIZE;
 145                 }
 146                 strncpy(line, str, len);
 147                 line[len] = 0;
 148                 buf = line;
 149                 str = ptr + 1;
 150                 while (*buf && isspace(*buf))
 151                         buf++;
 152                 if (*buf == '}') {
 153                         memmove(original, str, strlen(str));
 154                         return r;
 155                 }
 156                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 157                 {
 158                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 159                         return r;
 160                 }
 161                 if (!type && *value == '0')
 162                         return r;
 163                 if (!(buf = strchr(buf, ')')))
 164                         return r;
 165                 buf++;
 166                 while (*buf && isspace(*buf))
 167                         buf++;
 168                 if (r->num_elements >= GRS_MAX_FIELDS)
 169                 {
 170                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 171                         exit(0);
 172                 }
 173                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 174                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 175                 *t->tagType = type;
 176                 t->tagValue = (Z_StringOrNumeric *)
 177                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 178                 if ((ivalue = atoi(value)))
 179                 {
 180                         t->tagValue->which = Z_StringOrNumeric_numeric;
 181                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 182                         *t->tagValue->u.numeric = ivalue;
 183                 }
 184                 else
 185                 {
 186                         t->tagValue->which = Z_StringOrNumeric_string;
 187                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 188                         strcpy(t->tagValue->u.string, value);
 189                 }
 190                 t->tagOccurrence = 0;
 191                 t->metaData = 0;
 192                 t->appliedVariant = 0;
 193                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 194                 if (*buf == '{')
 195                 {
 196                         c->which = Z_ElementData_subtree;
 197                         c->u.subtree = read_grs1(str, o);
 198                 }
 199                 else
 200                 {
 201                         c->which = Z_ElementData_string;
 202                         c->u.string = odr_strdup(o, buf);
 203                 }
 204                 r->num_elements++;
 205         }
 206 }
 207
 208
 209
 210
 211 static void oid2str(Odr_oid *o, WRBUF buf)
 212 {
 213     for (; *o >= 0; o++) {
 214         char ibuf[16];
 215         sprintf(ibuf, "%d", *o);
 216         wrbuf_puts(buf, ibuf);
 217         if (o[1] > 0)
 218             wrbuf_putc(buf, '.');
 219     }
 220 }
 221
 222
 223 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 224 {
 225     switch (s->which) {
 226         case Z_RPNStructure_simple: {
 227             Z_Operand *o = s->u.simple;
 228
 229             switch (o->which) {
 230                 case Z_Operand_APT: {
 231                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 232
 233                     if (at->attributes) {
 234                         int i;
 235                         char ibuf[16];
 236
 237                         for (i = 0; i < at->attributes->num_attributes; i++) {
 238                             wrbuf_puts(buf, "@attr ");
 239                             if (at->attributes->attributes[i]->attributeSet) {
 240                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 241                                 wrbuf_putc(buf, ' ');
 242                             }
 243                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 244                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 245                             wrbuf_puts(buf, ibuf);
 246                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 247                             wrbuf_puts(buf, ibuf);
 248                         }
 249                     }
 250                     switch (at->term->which) {
 251                         case Z_Term_general: {
 252                             wrbuf_putc(buf, '"');
 253                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 254                             wrbuf_puts(buf, "\" ");
 255                             break;
 256                         }
 257                         default: abort();
 258                     }
 259                     break;
 260                 }
 261                 default: abort();
 262             }
 263             break;
 264         }
 265         case Z_RPNStructure_complex: {
 266             Z_Complex *c = s->u.complex;
 267
 268             switch (c->roperator->which) {
 269                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 270                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 271                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 272                 case Z_Operator_prox: abort();
 273                 default: abort();
 274             }
 275             if (!rpn2pquery(c->s1, buf))
 276                 return 0;
 277             if (!rpn2pquery(c->s2, buf))
 278                 return 0;
 279             break;
 280         }
 281         default: abort();
 282     }
 283     return 1;
 284 }
 285
 286
 287 WRBUF zquery2pquery(Z_Query *q)
 288 {
 289     WRBUF buf = wrbuf_alloc();
 290
 291     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 292         return 0;
 293     if (q->u.type_1->attributeSetId) {
 294         /* Output attribute set ID */
 295         wrbuf_puts(buf, "@attrset ");
 296         oid2str(q->u.type_1->attributeSetId, buf);
 297         wrbuf_putc(buf, ' ');
 298     }
 299     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 300 }
 301
 302
 303 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 304 #include <stdarg.h>
 305 void fatal(char *fmt, ...)
 306 {
 307     va_list ap;
 308
 309     fprintf(stderr, "FATAL (yazwrap): ");
 310     va_start(ap, fmt);
 311     vfprintf(stderr, fmt, ap);
 312     va_end(ap);
 313     fprintf(stderr, "\n");
 314     abort();
 315 }
 316
 317
 318 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 319 /*
 320  * Creates a new Perl object of type `class'; the newly-created scalar
 321  * that is a reference to the blessed thingy `referent' is returned.
 322  */
 323 static SV *newObject(char *class, SV *referent)
 324 {
 325     HV *stash;
 326     SV *sv;
 327
 328     sv = newRV_noinc((SV*) referent);
 329     stash = gv_stashpv(class, 0);
 330     if (stash == 0)
 331         fatal("attempt to create object of undefined class '%s'", class);
 332     /*assert(stash != 0);*/
 333     sv_bless(sv, stash);
 334     return sv;
 335 }
 336
 337
 338 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 339 static void setMember(HV *hv, char *name, SV *val)
 340 {
 341     /* We don't increment `val's reference count -- I think this is
 342      * right because it's created with a refcount of 1, and in fact
 343      * the reference via this hash is the only reference to it in
 344      * general.
 345      */
 346     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 347         fatal("couldn't store member in hash");
 348 }
 349
 350
 351 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 352 static SV *translateOID(Odr_oid *x)
 353 {
 354     /* Yaz represents an OID by an int array terminated by a negative
 355      * value, typically -1; we represent it as a reference to a
 356      * blessed scalar string of "."-separated elements.
 357      */
 358     char buf[1000];
 359     int i;
 360
 361     *buf = '\0';
 362     for (i = 0; x[i] >= 0; i++) {
 363         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 364         if (x[i+1] >- 0)
 365             strcat(buf, ".");
 366     }
 367
 368     /*
 369      * ### We'd like to return a blessed scalar (string) here, but of
 370      *  course you can't do that in Perl: only references can be
 371      *  blessed, so we'd have to return a _reference_ to a string, and
 372      *  bless _that_.  Better to do without the blessing, I think.
 373      */
 374     if (1) {
 375         return newSVpv(buf, 0);
 376     } else {
 377         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 378     }
 379 }
 380
 381
 382 static SV *rpn2perl(Z_RPNStructure *s)
 383 {
 384     SV *sv;
 385     HV *hv;
 386     AV *av;
 387
 388     switch (s->which) {
 389     case Z_RPNStructure_simple: {
 390         Z_Operand *o = s->u.simple;
 391         Z_AttributesPlusTerm *at;
 392         if (o->which != Z_Operand_APT)
 393             fatal("can't handle RPN simples other than APT");
 394         at = o->u.attributesPlusTerm;
 395         if (at->term->which != Z_Term_general)
 396             fatal("can't handle RPN terms other than general");
 397
 398         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 399         if (at->attributes) {
 400             int i;
 401             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 402                                   (SV*) (av = newAV()));
 403             for (i = 0; i < at->attributes->num_attributes; i++) {
 404                 Z_AttributeElement *elem = at->attributes->attributes[i];
 405                 HV *hv2;
 406                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 407                                     (SV*) (hv2 = newHV()));
 408                 if (elem->attributeSet)
 409                     setMember(hv2, "attributeSet",
 410                               translateOID(elem->attributeSet));
 411                 setMember(hv2, "attributeType",
 412                           newSViv(*elem->attributeType));
 413                 assert(elem->which == Z_AttributeValue_numeric);
 414                 setMember(hv2, "attributeValue",
 415                           newSViv(*elem->value.numeric));
 416                 av_push(av, tmp);
 417             }
 418             setMember(hv, "attributes", attrs);
 419         }
 420         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 421                                       at->term->u.general->len));
 422         return sv;
 423     }
 424     case Z_RPNStructure_complex: {
 425         SV *tmp;
 426         Z_Complex *c = s->u.complex;
 427         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 428         switch (c->roperator->which) {
 429         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 430         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 431         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 432         case Z_Operator_prox:    fatal("proximity not yet supported");
 433         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 434         }
 435         sv = newObject(type, (SV*) (av = newAV()));
 436         if ((tmp = rpn2perl(c->s1)) == 0)
 437             return 0;
 438         av_push(av, tmp);
 439         if ((tmp = rpn2perl(c->s2)) == 0)
 440             return 0;
 441         av_push(av, tmp);
 442         return sv;
 443     }
 444     default: fatal("unknown RPN node type %d", (int) s->which);
 445     }
 446
 447     return 0;
 448 }
 449
 450
 451 static SV *zquery2perl(Z_Query *q)
 452 {
 453     SV *sv;
 454     HV *hv;
 455
 456     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 457         return 0;
 458     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 459     if (q->u.type_1->attributeSetId)
 460         setMember(hv, "attributeSet",
 461                   translateOID(q->u.type_1->attributeSetId));
 462     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 463     return sv;
 464 }
 465
 466
 467 int bend_sort(void *handle, bend_sort_rr *rr)
 468 {
 469         HV *href;
 470         AV *aref;
 471         SV **temp;
 472         SV *err_code;
 473         SV *err_str;
 474         SV *status;
 475         STRLEN len;
 476         char *ptr;
 477         char *ODR_err_str;
 478         char **input_setnames;
 479         Zfront_handle *zhandle = (Zfront_handle *)handle;
 480         int i;
 481
 482         dSP;
 483         ENTER;
 484         SAVETMPS;
 485
 486         aref = newAV();
 487         input_setnames = rr->input_setnames;
 488         for (i = 0; i < rr->num_input_setnames; i++)
 489         {
 490                 av_push(aref, newSVpv(*input_setnames++, 0));
 491         }
 492         href = newHV();
 493         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 494         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 495         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 496         hv_store(href, "STATUS", 6, newSViv(0), 0);
 497
 498         PUSHMARK(sp);
 499
 500         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 501
 502         PUTBACK;
 503
 504         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 505
 506         SPAGAIN;
 507
 508         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 509         err_code = newSVsv(*temp);
 510
 511         temp = hv_fetch(href, "ERR_STR", 7, 1);
 512         err_str = newSVsv(*temp);
 513
 514         temp = hv_fetch(href, "STATUS", 6, 1);
 515         status = newSVsv(*temp);
 516
 517
 518
 519
 520         PUTBACK;
 521         FREETMPS;
 522         LEAVE;
 523
 524         hv_undef(href),
 525         av_undef(aref);
 526         rr->errcode = SvIV(err_code);
 527         rr->sort_status = SvIV(status);
 528         ptr = SvPV(err_str, len);
 529         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 530         strcpy(ODR_err_str, ptr);
 531         rr->errstring = ODR_err_str;
 532
 533         sv_free(err_code);
 534         sv_free(err_str);
 535         sv_free(status);
 536
 537         return 0;
 538 }
 539
 540
 541 int bend_search(void *handle, bend_search_rr *rr)
 542 {
 543         HV *href;
 544         AV *aref;
 545         SV **temp;
 546         SV *hits;
 547         SV *err_code;
 548         SV *err_str;
 549         char *ODR_errstr;
 550         STRLEN len;
 551         int i;
 552         char **basenames;
 553         int n;
 554         WRBUF query;
 555         char *ptr;
 556         SV *point;
 557         SV *ODR_point;
 558         Zfront_handle *zhandle = (Zfront_handle *)handle;
 559         CV* handler_cv = 0;
 560
 561         dSP;
 562         ENTER;
 563         SAVETMPS;
 564
 565         aref = newAV();
 566         basenames = rr->basenames;
 567         for (i = 0; i < rr->num_bases; i++)
 568         {
 569                 av_push(aref, newSVpv(*basenames++, 0));
 570         }
 571         href = newHV();
 572         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 573         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 574         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 575         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 576         hv_store(href, "HITS", 4, newSViv(0), 0);
 577         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 578         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 579         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 580         hv_store(href, "RPN", 3, zquery2perl(rr->query), 0);
 581         query = zquery2pquery(rr->query);
 582         if (query)
 583         {
 584                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 585         }
 586         else
 587         {
 588                 rr->errcode = 108;
 589         }
 590         PUSHMARK(sp);
 591
 592         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 593
 594         PUTBACK;
 595
 596         handler_cv = simpleserver_sv2cv( search_ref );
 597         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 598
 599         SPAGAIN;
 600
 601         temp = hv_fetch(href, "HITS", 4, 1);
 602         hits = newSVsv(*temp);
 603
 604         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 605         err_code = newSVsv(*temp);
 606
 607         temp = hv_fetch(href, "ERR_STR", 7, 1);
 608         err_str = newSVsv(*temp);
 609
 610         temp = hv_fetch(href, "HANDLE", 6, 1);
 611         point = newSVsv(*temp);
 612
 613         PUTBACK;
 614         FREETMPS;
 615         LEAVE;
 616
 617         hv_undef(href);
 618         av_undef(aref);
 619         rr->hits = SvIV(hits);
 620         rr->errcode = SvIV(err_code);
 621         ptr = SvPV(err_str, len);
 622         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 623         strcpy(ODR_errstr, ptr);
 624         rr->errstring = ODR_errstr;
 625 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 626         memcpy(ODR_point, point, sizeof(*point));
 627         zhandle->handle = ODR_point;*/
 628         zhandle->handle = point;
 629         handle = zhandle;
 630         sv_free(hits);
 631         sv_free(err_code);
 632         sv_free(err_str);
 633         sv_free( (SV*) aref);
 634         sv_free( (SV*) href);
 635         /*sv_free(point);*/
 636         wrbuf_free(query, 1);
 637         return 0;
 638 }
 639
 640
 641 /* ### this is worryingly similar to oid2str() */
 642 WRBUF oid2dotted(int *oid)
 643 {
 644
 645         WRBUF buf = wrbuf_alloc();
 646         int dot = 0;
 647
 648         for (; *oid != -1 ; oid++)
 649         {
 650                 char ibuf[16];
 651                 if (dot)
 652                 {
 653                         wrbuf_putc(buf, '.');
 654                 }
 655                 else
 656                 {
 657                         dot = 1;
 658                 }
 659                 sprintf(ibuf, "%d", *oid);
 660                 wrbuf_puts(buf, ibuf);
 661         }
 662         return buf;
 663 }
 664
 665
 666 int dotted2oid(char *dotted, int *buffer)
 667 {
 668         int *oid;
 669         char ibuf[16];
 670         char *ptr;
 671         int n = 0;
 672
 673         ptr = ibuf;
 674         oid = buffer;
 675         while (*dotted)
 676         {
 677                 if (*dotted == '.')
 678                 {
 679                         n++;
 680                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 681                         {
 682                                 *oid = -1;
 683                                 return -1;
 684                         }
 685                         *ptr = 0;
 686                         sscanf(ibuf, "%d", oid++);
 687                         ptr = ibuf;
 688                         dotted++;
 689
 690                 }
 691                 else
 692                 {
 693                         *ptr++ = *dotted++;
 694                 }
 695         }
 696         if (n < MAX_OID)
 697         {
 698                 *ptr = 0;
 699                 sscanf(ibuf, "%d", oid++);
 700         }
 701         *oid = -1;
 702         return 0;
 703 }
 704
 705
 706 int bend_fetch(void *handle, bend_fetch_rr *rr)
 707 {
 708         HV *href;
 709         SV **temp;
 710         SV *basename;
 711         SV *record;
 712         SV *last;
 713         SV *err_code;
 714         SV *err_string;
 715         SV *sur_flag;
 716         SV *point;
 717         SV *rep_form;
 718         char *ptr;
 719         char *ODR_record;
 720         char *ODR_basename;
 721         char *ODR_errstr;
 722         int *ODR_oid_buf;
 723         oident *oid;
 724         WRBUF oid_dotted;
 725         Zfront_handle *zhandle = (Zfront_handle *)handle;
 726         CV* handler_cv = 0;
 727
 728         Z_RecordComposition *composition;
 729         Z_ElementSetNames *simple;
 730         STRLEN length;
 731
 732         dSP;
 733         ENTER;
 734         SAVETMPS;
 735
 736         rr->errcode = 0;
 737         href = newHV();
 738         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 739         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 740         oid_dotted = oid2dotted(rr->request_format_raw);
 741         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 742         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 743         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 744         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 745         hv_store(href, "LAST", 4, newSViv(0), 0);
 746         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 747         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 748         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 749         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 750         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 751         if (rr->comp)
 752         {
 753                 composition = rr->comp;
 754                 if (composition->which == Z_RecordComp_simple)
 755                 {
 756                         simple = composition->u.simple;
 757                         if (simple->which == Z_ElementSetNames_generic)
 758                         {
 759                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 760                         }
 761                         else
 762                         {
 763                                 rr->errcode = 26;
 764                         }
 765                 }
 766                 else
 767                 {
 768                         rr->errcode = 26;
 769                 }
 770         }
 771
 772         PUSHMARK(sp);
 773
 774         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 775
 776         PUTBACK;
 777
 778         handler_cv = simpleserver_sv2cv( fetch_ref );
 779         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 780
 781         SPAGAIN;
 782
 783         temp = hv_fetch(href, "BASENAME", 8, 1);
 784         basename = newSVsv(*temp);
 785
 786         temp = hv_fetch(href, "RECORD", 6, 1);
 787         record = newSVsv(*temp);
 788
 789         temp = hv_fetch(href, "LAST", 4, 1);
 790         last = newSVsv(*temp);
 791
 792         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 793         err_code = newSVsv(*temp);
 794
 795         temp = hv_fetch(href, "ERR_STR", 7, 1),
 796         err_string = newSVsv(*temp);
 797
 798         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 799         sur_flag = newSVsv(*temp);
 800
 801         temp = hv_fetch(href, "REP_FORM", 8, 1);
 802         rep_form = newSVsv(*temp);
 803
 804         temp = hv_fetch(href, "HANDLE", 6, 1);
 805         point = newSVsv(*temp);
 806
 807         PUTBACK;
 808         FREETMPS;
 809         LEAVE;
 810
 811         hv_undef(href);
 812
 813         ptr = SvPV(basename, length);
 814         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 815         strcpy(ODR_basename, ptr);
 816         rr->basename = ODR_basename;
 817
 818         ptr = SvPV(rep_form, length);
 819         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 820         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 821         {
 822                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 823         }
 824         rr->output_format_raw = ODR_oid_buf;
 825
 826         ptr = SvPV(record, length);
 827         oid = oid_getentbyoid(ODR_oid_buf);
 828         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 829         {
 830                 rr->record = (char *) read_grs1(ptr, rr->stream);
 831                 rr->len = -1;
 832         }
 833         else
 834         {
 835                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 836                 strcpy(ODR_record, ptr);
 837                 rr->record = ODR_record;
 838                 rr->len = length;
 839         }
 840         zhandle->handle = point;
 841         handle = zhandle;
 842         rr->last_in_set = SvIV(last);
 843
 844         if (!(rr->errcode))
 845         {
 846                 rr->errcode = SvIV(err_code);
 847                 ptr = SvPV(err_string, length);
 848                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 849                 strcpy(ODR_errstr, ptr);
 850                 rr->errstring = ODR_errstr;
 851         }
 852         rr->surrogate_flag = SvIV(sur_flag);
 853
 854         wrbuf_free(oid_dotted, 1);
 855         sv_free((SV*) href);
 856         sv_free(basename);
 857         sv_free(record);
 858         sv_free(last);
 859         sv_free(err_string);
 860         sv_free(err_code),
 861         sv_free(sur_flag);
 862         sv_free(rep_form);
 863
 864         return 0;
 865 }
 866
 867
 868 int bend_present(void *handle, bend_present_rr *rr)
 869 {
 870
 871         HV *href;
 872         SV **temp;
 873         SV *err_code;
 874         SV *err_string;
 875         SV *hits;
 876         SV *point;
 877         STRLEN len;
 878         Z_RecordComposition *composition;
 879         Z_ElementSetNames *simple;
 880         char *ODR_errstr;
 881         char *ptr;
 882         Zfront_handle *zhandle = (Zfront_handle *)handle;
 883         CV* handler_cv = 0;
 884
 885 /*      WRBUF oid_dotted; */
 886
 887         dSP;
 888         ENTER;
 889         SAVETMPS;
 890
 891         href = newHV();
 892         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 893         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 894         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 895         hv_store(href, "START", 5, newSViv(rr->start), 0);
 896         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 897         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 898         /*oid_dotted = oid2dotted(rr->request_format_raw);
 899         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 900         hv_store(href, "HITS", 4, newSViv(0), 0);
 901         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 902         if (rr->comp)
 903         {
 904                 composition = rr->comp;
 905                 if (composition->which == Z_RecordComp_simple)
 906                 {
 907                         simple = composition->u.simple;
 908                         if (simple->which == Z_ElementSetNames_generic)
 909                         {
 910                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 911                         }
 912                         else
 913                         {
 914                                 rr->errcode = 26;
 915                                 return 0;
 916                         }
 917                 }
 918                 else
 919                 {
 920                         rr->errcode = 26;
 921                         return 0;
 922                 }
 923         }
 924
 925         PUSHMARK(sp);
 926
 927         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 928
 929         PUTBACK;
 930
 931         handler_cv = simpleserver_sv2cv( present_ref );
 932         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 933
 934         SPAGAIN;
 935
 936         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 937         err_code = newSVsv(*temp);
 938
 939         temp = hv_fetch(href, "ERR_STR", 7, 1);
 940         err_string = newSVsv(*temp);
 941
 942         temp = hv_fetch(href, "HITS", 4, 1);
 943         hits = newSVsv(*temp);
 944
 945         temp = hv_fetch(href, "HANDLE", 6, 1);
 946         point = newSVsv(*temp);
 947
 948         PUTBACK;
 949         FREETMPS;
 950         LEAVE;
 951
 952         hv_undef(href);
 953         rr->errcode = SvIV(err_code);
 954         rr->hits = SvIV(hits);
 955
 956         ptr = SvPV(err_string, len);
 957         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 958         strcpy(ODR_errstr, ptr);
 959         rr->errstring = ODR_errstr;
 960 /*      wrbuf_free(oid_dotted, 1);*/
 961         zhandle->handle = point;
 962         handle = zhandle;
 963         sv_free(err_code);
 964         sv_free(err_string);
 965         sv_free(hits);
 966         sv_free( (SV*) href);
 967
 968         return 0;
 969 }
 970
 971
 972 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 973 {
 974         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 975         return 0;
 976 }
 977
 978
 979 int bend_delete(void *handle, bend_delete_rr *rr)
 980 {
 981         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 982         return 0;
 983 }
 984
 985
 986 int bend_scan(void *handle, bend_scan_rr *rr)
 987 {
 988         HV *href;
 989         AV *aref;
 990         AV *list;
 991         AV *entries;
 992         HV *scan_item;
 993         struct scan_entry *scan_list;
 994         struct scan_entry *buffer;
 995         int *step_size = rr->step_size;
 996         int i;
 997         char **basenames;
 998         SV **temp;
 999         SV *err_code = sv_newmortal();
1000         SV *err_str = sv_newmortal();
1001         SV *point = sv_newmortal();
1002         SV *status = sv_newmortal();
1003         SV *number = sv_newmortal();
1004         char *ptr;
1005         char *ODR_errstr;
1006         STRLEN len;
1007         int term_len;
1008         SV *term_tmp;
1009         SV *entries_ref;
1010         Zfront_handle *zhandle = (Zfront_handle *)handle;
1011         CV* handler_cv = 0;
1012
1013         dSP;
1014         ENTER;
1015         SAVETMPS;
1016         href = newHV();
1017         list = newAV();
1018         if (rr->term->term->which == Z_Term_general)
1019         {
1020                 term_len = rr->term->term->u.general->len;
1021                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1022         } else {
1023                 rr->errcode = 229;      /* Unsupported term type */
1024                 return 0;
1025         }
1026         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1027         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1028         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1029         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1030         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1031         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1032         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1033         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1034         aref = newAV();
1035         basenames = rr->basenames;
1036         for (i = 0; i < rr->num_bases; i++)
1037         {
1038                 av_push(aref, newSVpv(*basenames++, 0));
1039         }
1040         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1041
1042         PUSHMARK(sp);
1043
1044         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1045
1046         PUTBACK;
1047
1048         handler_cv = simpleserver_sv2cv( scan_ref );
1049         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1050
1051         SPAGAIN;
1052
1053         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1054         err_code = newSVsv(*temp);
1055
1056         temp = hv_fetch(href, "ERR_STR", 7, 1);
1057         err_str = newSVsv(*temp);
1058
1059         temp = hv_fetch(href, "HANDLE", 6, 1);
1060         point = newSVsv(*temp);
1061
1062         temp = hv_fetch(href, "STATUS", 6, 1);
1063         status = newSVsv(*temp);
1064
1065         temp = hv_fetch(href, "NUMBER", 6, 1);
1066         number = newSVsv(*temp);
1067
1068         temp = hv_fetch(href, "ENTRIES", 7, 1);
1069         entries_ref = newSVsv(*temp);
1070
1071         PUTBACK;
1072         FREETMPS;
1073         LEAVE;
1074
1075         ptr = SvPV(err_str, len);
1076         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1077         strcpy(ODR_errstr, ptr);
1078         rr->errstring = ODR_errstr;
1079         rr->errcode = SvIV(err_code);
1080         rr->num_entries = SvIV(number);
1081         rr->status = SvIV(status);
1082         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1083         buffer = scan_list;
1084         entries = (AV *)SvRV(entries_ref);
1085         for (i = 0; i < rr->num_entries; i++)
1086         {
1087                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1088                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1089                 ptr = SvPV(*temp, len);
1090                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1091                 strcpy(buffer->term, ptr);
1092                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1093                 buffer->occurrences = SvIV(*temp);
1094                 buffer++;
1095                 hv_undef(scan_item);
1096         }
1097         rr->entries = scan_list;
1098         zhandle->handle = point;
1099         handle = zhandle;
1100         sv_free(err_code);
1101         sv_free(err_str);
1102         sv_free(status);
1103         sv_free(number);
1104         hv_undef(href);
1105         sv_free((SV *)href);
1106         av_undef(aref);
1107         sv_free((SV *)aref);
1108         av_undef(list);
1109         sv_free((SV *)list);
1110         av_undef(entries);
1111         /*sv_free((SV *)entries);*/
1112         sv_free(entries_ref);
1113
1114         return 0;
1115 }
1116
1117
1118 bend_initresult *bend_init(bend_initrequest *q)
1119 {
1120         int dummy = simpleserver_clone();
1121         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
1122         HV *href;
1123         SV **temp;
1124         SV *id;
1125         SV *name;
1126         SV *ver;
1127         SV *err_str;
1128         SV *status;
1129         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
1130         STRLEN len;
1131         int n;
1132         SV *handle;
1133         /*char *name_ptr;
1134         char *ver_ptr;*/
1135         char *ptr;
1136         char *user = NULL;
1137         char *passwd = NULL;
1138         CV* handler_cv = 0;
1139
1140         PERL_SET_CONTEXT(PERL_GET_THX);
1141
1142         dSP;
1143         ENTER;
1144         SAVETMPS;
1145
1146         /*q->bend_sort = bend_sort;*/
1147         if (search_ref)
1148         {
1149                 q->bend_search = bend_search;
1150         }
1151         if (present_ref)
1152         {
1153                 q->bend_present = bend_present;
1154         }
1155         /*q->bend_esrequest = bend_esrequest;*/
1156         /*q->bend_delete = bend_delete;*/
1157         if (fetch_ref)
1158         {
1159                 q->bend_fetch = bend_fetch;
1160         }
1161         if (scan_ref)
1162         {
1163                 q->bend_scan = bend_scan;
1164         }
1165         href = newHV();
1166         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1167         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1168         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1169         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1170         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1171         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1172         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1173         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1174         if (q->auth) {
1175             if (q->auth->which == Z_IdAuthentication_open) {
1176                 char *openpass = xstrdup (q->auth->u.open);
1177                 char *cp = strchr (openpass, '/');
1178                 if (cp) {
1179                     *cp = '\0';
1180                     user = nmem_strdup (odr_getmem (q->stream), openpass);
1181                     passwd = nmem_strdup (odr_getmem (q->stream), cp + 1);
1182                 }
1183                 xfree(openpass);
1184             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1185                 user = q->auth->u.idPass->userId;
1186                 passwd = q->auth->u.idPass->password;
1187             }
1188             /* ### some code paths have user/password unassigned here */
1189             hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1190             hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1191         }
1192
1193         PUSHMARK(sp);
1194
1195         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1196
1197         PUTBACK;
1198
1199         if (init_ref != NULL)
1200         {
1201              handler_cv = simpleserver_sv2cv( init_ref );
1202              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1203         }
1204
1205         SPAGAIN;
1206
1207         temp = hv_fetch(href, "IMP_ID", 6, 1);
1208         id = newSVsv(*temp);
1209
1210         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1211         name = newSVsv(*temp);
1212
1213         temp = hv_fetch(href, "IMP_VER", 7, 1);
1214         ver = newSVsv(*temp);
1215
1216         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1217         status = newSVsv(*temp);
1218
1219         temp = hv_fetch(href, "ERR_STR", 7, 1);
1220         err_str = newSVsv(*temp);
1221
1222         temp = hv_fetch(href, "HANDLE", 6, 1);
1223         handle= newSVsv(*temp);
1224
1225         hv_undef(href);
1226         PUTBACK;
1227         FREETMPS;
1228         LEAVE;
1229         zhandle->handle = handle;
1230         r->errcode = SvIV(status);
1231         ptr = SvPV(err_str, len);
1232         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1233         strcpy(r->errstring, ptr);
1234         sv_free(err_str);
1235         r->handle = zhandle;
1236         ptr = SvPV(id, len);
1237         q->implementation_id = (char *)xmalloc(len + 1);
1238         strcpy(q->implementation_id, ptr);
1239         ptr = SvPV(name, len);
1240         q->implementation_name = (char *)xmalloc(len + 1);
1241         strcpy(q->implementation_name, ptr);
1242 /*      q->implementation_name = SvPV(name, len);*/
1243         ptr = SvPV(ver, len);
1244         q->implementation_version = (char *)xmalloc(len + 1);
1245         strcpy(q->implementation_version, ptr);
1246
1247         return r;
1248 }
1249
1250
1251 void bend_close(void *handle)
1252 {
1253         HV *href;
1254         Zfront_handle *zhandle = (Zfront_handle *)handle;
1255         SV **temp;
1256         CV* handler_cv = 0;
1257
1258         dSP;
1259         ENTER;
1260         SAVETMPS;
1261
1262         if (close_ref == NULL)
1263         {
1264                 return;
1265         }
1266
1267         href = newHV();
1268         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1269
1270         PUSHMARK(sp);
1271
1272         XPUSHs(sv_2mortal(newRV((SV *)href)));
1273
1274         PUTBACK;
1275
1276         handler_cv = simpleserver_sv2cv( close_ref );
1277         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1278
1279         SPAGAIN;
1280
1281         PUTBACK;
1282         FREETMPS;
1283         LEAVE;
1284
1285         xfree(handle);
1286         simpleserver_free();
1287
1288         return;
1289 }
1290
1291
1292 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1293
1294 void
1295 set_init_handler(arg)
1296                 SV *arg
1297         CODE:
1298                 init_ref = newSVsv(arg);
1299
1300
1301 void
1302 set_close_handler(arg)
1303                 SV *arg
1304         CODE:
1305                 close_ref = newSVsv(arg);
1306
1307
1308 void
1309 set_sort_handler(arg)
1310                 SV *arg
1311         CODE:
1312                 sort_ref = newSVsv(arg);
1313
1314 void
1315 set_search_handler(arg)
1316                 SV *arg
1317         CODE:
1318                 search_ref = newSVsv(arg);
1319
1320
1321 void
1322 set_fetch_handler(arg)
1323                 SV *arg
1324         CODE:
1325                 fetch_ref = newSVsv(arg);
1326
1327
1328 void
1329 set_present_handler(arg)
1330                 SV *arg
1331         CODE:
1332                 present_ref = newSVsv(arg);
1333
1334
1335 void
1336 set_esrequest_handler(arg)
1337                 SV *arg
1338         CODE:
1339                 esrequest_ref = newSVsv(arg);
1340
1341
1342 void
1343 set_delete_handler(arg)
1344                 SV *arg
1345         CODE:
1346                 delete_ref = newSVsv(arg);
1347
1348
1349 void
1350 set_scan_handler(arg)
1351                 SV *arg
1352         CODE:
1353                 scan_ref = newSVsv(arg);
1354
1355
1356 int
1357 start_server(...)
1358         PREINIT:
1359                 char **argv;
1360                 char **argv_buf;
1361                 char *ptr;
1362                 int i;
1363                 STRLEN len;
1364         CODE:
1365                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1366                 argv = argv_buf;
1367                 for (i = 0; i < items; i++)
1368                 {
1369                         ptr = SvPV(ST(i), len);
1370                         *argv_buf = (char *)xmalloc(len + 1);
1371                         strcpy(*argv_buf++, ptr);
1372                 }
1373                 *argv_buf = NULL;
1374                 root_perl_context = PERL_GET_CONTEXT;
1375
1376                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1377         OUTPUT:
1378                 RETVAL
1379
1380
1381 int
1382 ScanSuccess()
1383         CODE:
1384                 RETVAL = BEND_SCAN_SUCCESS;
1385         OUTPUT:
1386                 RETVAL
1387
1388 int
1389 ScanPartial()
1390         CODE:
1391                 RETVAL = BEND_SCAN_PARTIAL;
1392         OUTPUT:
1393                 RETVAL
1394
1395