SimpleServer.xs

   1 /*
   2
   3  * $Id: SimpleServer.xs,v 1.22 2004-05-11 12:56:37 adam 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 #ifdef WIN32
  42 #else
  43 #include <unistd.h>
  44 #endif
  45 #include <stdlib.h>
  46 #include <ctype.h>
  47 #define GRS_MAX_FIELDS 500
  48 #ifdef ASN_COMPILED
  49 #include <yaz/ill.h>
  50 #endif
  51 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  52 #define sv_undef PL_sv_undef
  53 #endif
  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 } Zfront_handle;
  68
  69 SV *init_ref = NULL;
  70 SV *close_ref = NULL;
  71 SV *sort_ref = NULL;
  72 SV *search_ref = NULL;
  73 SV *fetch_ref = NULL;
  74 SV *present_ref = NULL;
  75 SV *esrequest_ref = NULL;
  76 SV *delete_ref = NULL;
  77 SV *scan_ref = NULL;
  78 PerlInterpreter *root_perl_context;
  79 int MAX_OID = 15;
  80
  81 #define GRS_BUF_SIZE 512
  82
  83 CV * simpleserver_sv2cv(SV *handler) {
  84     STRLEN len;
  85     char *buf;
  86
  87     if (SvPOK(handler)) {
  88         CV *ret;
  89         buf = SvPV( handler, len);
  90         if ( !( ret = perl_get_cv(buf, FALSE ) ) ) {
  91             fprintf( stderr, "simpleserver_sv2cv: No such handler '%s'\n\n", buf );
  92             exit(1);
  93         }
  94
  95         return ret;
  96     } else {
  97         return (CV *) handler;
  98     }
  99 }
 100
 101
 102 int simpleserver_clone(void) {
 103      PerlInterpreter *current = PERL_GET_CONTEXT;
 104
 105      if (!current) {
 106          PerlInterpreter *perl_interp = perl_clone(root_perl_context, CLONEf_COPY_STACKS);
 107          PERL_SET_CONTEXT( perl_interp );
 108      }
 109      return 0;
 110 }
 111
 112
 113 void simpleserver_free(void) {
 114     PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 115
 116     perl_destruct(current_interp);
 117     perl_free(current_interp);
 118     PERL_SYS_TERM();
 119 }
 120
 121
 122 Z_GenericRecord *read_grs1(char *str, ODR o)
 123 {
 124         int type, ivalue;
 125         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 126         char value[GRS_BUF_SIZE+1];
 127         Z_GenericRecord *r = 0;
 128
 129         original = str;
 130         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 131         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 132         r->num_elements = 0;
 133
 134         for (;;)
 135         {
 136                 Z_TaggedElement *t;
 137                 Z_ElementData *c;
 138                 int len;
 139
 140                 ptr = strchr(str, '\n');
 141                 if (!ptr) {
 142                         return r;
 143                 }
 144                 len = ptr - str;
 145                 if (len > GRS_BUF_SIZE) {
 146                     yaz_log(LOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 147                     len = GRS_BUF_SIZE;
 148                 }
 149                 strncpy(line, str, len);
 150                 line[len] = 0;
 151                 buf = line;
 152                 str = ptr + 1;
 153                 while (*buf && isspace(*buf))
 154                         buf++;
 155                 if (*buf == '}') {
 156                         memmove(original, str, strlen(str));
 157                         return r;
 158                 }
 159                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 160                 {
 161                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 162                         return r;
 163                 }
 164                 if (!type && *value == '0')
 165                         return r;
 166                 if (!(buf = strchr(buf, ')')))
 167                         return r;
 168                 buf++;
 169                 while (*buf && isspace(*buf))
 170                         buf++;
 171                 if (r->num_elements >= GRS_MAX_FIELDS)
 172                 {
 173                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 174                         exit(0);
 175                 }
 176                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 177                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 178                 *t->tagType = type;
 179                 t->tagValue = (Z_StringOrNumeric *)
 180                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 181                 if ((ivalue = atoi(value)))
 182                 {
 183                         t->tagValue->which = Z_StringOrNumeric_numeric;
 184                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 185                         *t->tagValue->u.numeric = ivalue;
 186                 }
 187                 else
 188                 {
 189                         t->tagValue->which = Z_StringOrNumeric_string;
 190                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 191                         strcpy(t->tagValue->u.string, value);
 192                 }
 193                 t->tagOccurrence = 0;
 194                 t->metaData = 0;
 195                 t->appliedVariant = 0;
 196                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 197                 if (*buf == '{')
 198                 {
 199                         c->which = Z_ElementData_subtree;
 200                         c->u.subtree = read_grs1(str, o);
 201                 }
 202                 else
 203                 {
 204                         c->which = Z_ElementData_string;
 205                         c->u.string = odr_strdup(o, buf);
 206                 }
 207                 r->num_elements++;
 208         }
 209 }
 210
 211
 212
 213
 214 static void oid2str(Odr_oid *o, WRBUF buf)
 215 {
 216     for (; *o >= 0; o++) {
 217         char ibuf[16];
 218         sprintf(ibuf, "%d", *o);
 219         wrbuf_puts(buf, ibuf);
 220         if (o[1] > 0)
 221             wrbuf_putc(buf, '.');
 222     }
 223 }
 224
 225
 226 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 227 {
 228     switch (s->which) {
 229         case Z_RPNStructure_simple: {
 230             Z_Operand *o = s->u.simple;
 231
 232             switch (o->which) {
 233                 case Z_Operand_APT: {
 234                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 235
 236                     if (at->attributes) {
 237                         int i;
 238                         char ibuf[16];
 239
 240                         for (i = 0; i < at->attributes->num_attributes; i++) {
 241                             wrbuf_puts(buf, "@attr ");
 242                             if (at->attributes->attributes[i]->attributeSet) {
 243                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 244                                 wrbuf_putc(buf, ' ');
 245                             }
 246                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 247                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 248                             wrbuf_puts(buf, ibuf);
 249                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 250                             wrbuf_puts(buf, ibuf);
 251                         }
 252                     }
 253                     switch (at->term->which) {
 254                         case Z_Term_general: {
 255                             wrbuf_putc(buf, '"');
 256                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 257                             wrbuf_puts(buf, "\" ");
 258                             break;
 259                         }
 260                         default: abort();
 261                     }
 262                     break;
 263                 }
 264                 default: abort();
 265             }
 266             break;
 267         }
 268         case Z_RPNStructure_complex: {
 269             Z_Complex *c = s->u.complex;
 270
 271             switch (c->roperator->which) {
 272                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 273                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 274                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 275                 case Z_Operator_prox: abort();
 276                 default: abort();
 277             }
 278             if (!rpn2pquery(c->s1, buf))
 279                 return 0;
 280             if (!rpn2pquery(c->s2, buf))
 281                 return 0;
 282             break;
 283         }
 284         default: abort();
 285     }
 286     return 1;
 287 }
 288
 289
 290 WRBUF zquery2pquery(Z_Query *q)
 291 {
 292     WRBUF buf = wrbuf_alloc();
 293
 294     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 295         return 0;
 296     if (q->u.type_1->attributeSetId) {
 297         /* Output attribute set ID */
 298         wrbuf_puts(buf, "@attrset ");
 299         oid2str(q->u.type_1->attributeSetId, buf);
 300         wrbuf_putc(buf, ' ');
 301     }
 302     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 303 }
 304
 305
 306 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 307 #include <stdarg.h>
 308 void fatal(char *fmt, ...)
 309 {
 310     va_list ap;
 311
 312     fprintf(stderr, "FATAL (yazwrap): ");
 313     va_start(ap, fmt);
 314     vfprintf(stderr, fmt, ap);
 315     va_end(ap);
 316     fprintf(stderr, "\n");
 317     abort();
 318 }
 319
 320
 321 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 322 /*
 323  * Creates a new Perl object of type `class'; the newly-created scalar
 324  * that is a reference to the blessed thingy `referent' is returned.
 325  */
 326 static SV *newObject(char *class, SV *referent)
 327 {
 328     HV *stash;
 329     SV *sv;
 330
 331     sv = newRV_noinc((SV*) referent);
 332     stash = gv_stashpv(class, 0);
 333     if (stash == 0)
 334         fatal("attempt to create object of undefined class '%s'", class);
 335     /*assert(stash != 0);*/
 336     sv_bless(sv, stash);
 337     return sv;
 338 }
 339
 340
 341 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 342 static void setMember(HV *hv, char *name, SV *val)
 343 {
 344     /* We don't increment `val's reference count -- I think this is
 345      * right because it's created with a refcount of 1, and in fact
 346      * the reference via this hash is the only reference to it in
 347      * general.
 348      */
 349     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 350         fatal("couldn't store member in hash");
 351 }
 352
 353
 354 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 355 static SV *translateOID(Odr_oid *x)
 356 {
 357     /* Yaz represents an OID by an int array terminated by a negative
 358      * value, typically -1; we represent it as a reference to a
 359      * blessed scalar string of "."-separated elements.
 360      */
 361     char buf[1000];
 362     int i;
 363
 364     *buf = '\0';
 365     for (i = 0; x[i] >= 0; i++) {
 366         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 367         if (x[i+1] >- 0)
 368             strcat(buf, ".");
 369     }
 370
 371     /*
 372      * ### We'd like to return a blessed scalar (string) here, but of
 373      *  course you can't do that in Perl: only references can be
 374      *  blessed, so we'd have to return a _reference_ to a string, and
 375      *  bless _that_.  Better to do without the blessing, I think.
 376      */
 377     if (1) {
 378         return newSVpv(buf, 0);
 379     } else {
 380         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 381     }
 382 }
 383
 384
 385 static SV *rpn2perl(Z_RPNStructure *s)
 386 {
 387     SV *sv;
 388     HV *hv;
 389     AV *av;
 390
 391     switch (s->which) {
 392     case Z_RPNStructure_simple: {
 393         Z_Operand *o = s->u.simple;
 394         Z_AttributesPlusTerm *at;
 395         if (o->which != Z_Operand_APT)
 396             fatal("can't handle RPN simples other than APT");
 397         at = o->u.attributesPlusTerm;
 398         if (at->term->which != Z_Term_general)
 399             fatal("can't handle RPN terms other than general");
 400
 401         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 402         if (at->attributes) {
 403             int i;
 404             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 405                                   (SV*) (av = newAV()));
 406             for (i = 0; i < at->attributes->num_attributes; i++) {
 407                 Z_AttributeElement *elem = at->attributes->attributes[i];
 408                 HV *hv2;
 409                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 410                                     (SV*) (hv2 = newHV()));
 411                 if (elem->attributeSet)
 412                     setMember(hv2, "attributeSet",
 413                               translateOID(elem->attributeSet));
 414                 setMember(hv2, "attributeType",
 415                           newSViv(*elem->attributeType));
 416                 assert(elem->which == Z_AttributeValue_numeric);
 417                 setMember(hv2, "attributeValue",
 418                           newSViv(*elem->value.numeric));
 419                 av_push(av, tmp);
 420             }
 421             setMember(hv, "attributes", attrs);
 422         }
 423         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 424                                       at->term->u.general->len));
 425         return sv;
 426     }
 427     case Z_RPNStructure_complex: {
 428         SV *tmp;
 429         Z_Complex *c = s->u.complex;
 430         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 431         switch (c->roperator->which) {
 432         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 433         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 434         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 435         case Z_Operator_prox:    fatal("proximity not yet supported");
 436         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 437         }
 438         sv = newObject(type, (SV*) (av = newAV()));
 439         if ((tmp = rpn2perl(c->s1)) == 0)
 440             return 0;
 441         av_push(av, tmp);
 442         if ((tmp = rpn2perl(c->s2)) == 0)
 443             return 0;
 444         av_push(av, tmp);
 445         return sv;
 446     }
 447     default: fatal("unknown RPN node type %d", (int) s->which);
 448     }
 449
 450     return 0;
 451 }
 452
 453
 454 static SV *zquery2perl(Z_Query *q)
 455 {
 456     SV *sv;
 457     HV *hv;
 458
 459     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 460         return 0;
 461     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 462     if (q->u.type_1->attributeSetId)
 463         setMember(hv, "attributeSet",
 464                   translateOID(q->u.type_1->attributeSetId));
 465     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 466     return sv;
 467 }
 468
 469
 470 int bend_sort(void *handle, bend_sort_rr *rr)
 471 {
 472         HV *href;
 473         AV *aref;
 474         SV **temp;
 475         SV *err_code;
 476         SV *err_str;
 477         SV *status;
 478         STRLEN len;
 479         char *ptr;
 480         char *ODR_err_str;
 481         char **input_setnames;
 482         Zfront_handle *zhandle = (Zfront_handle *)handle;
 483         int i;
 484
 485         dSP;
 486         ENTER;
 487         SAVETMPS;
 488
 489         aref = newAV();
 490         input_setnames = rr->input_setnames;
 491         for (i = 0; i < rr->num_input_setnames; i++)
 492         {
 493                 av_push(aref, newSVpv(*input_setnames++, 0));
 494         }
 495         href = newHV();
 496         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 497         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 498         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 499         hv_store(href, "STATUS", 6, newSViv(0), 0);
 500
 501         PUSHMARK(sp);
 502
 503         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 504
 505         PUTBACK;
 506
 507         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 508
 509         SPAGAIN;
 510
 511         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 512         err_code = newSVsv(*temp);
 513
 514         temp = hv_fetch(href, "ERR_STR", 7, 1);
 515         err_str = newSVsv(*temp);
 516
 517         temp = hv_fetch(href, "STATUS", 6, 1);
 518         status = newSVsv(*temp);
 519
 520
 521
 522
 523         PUTBACK;
 524         FREETMPS;
 525         LEAVE;
 526
 527         hv_undef(href),
 528         av_undef(aref);
 529         rr->errcode = SvIV(err_code);
 530         rr->sort_status = SvIV(status);
 531         ptr = SvPV(err_str, len);
 532         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 533         strcpy(ODR_err_str, ptr);
 534         rr->errstring = ODR_err_str;
 535
 536         sv_free(err_code);
 537         sv_free(err_str);
 538         sv_free(status);
 539
 540         return 0;
 541 }
 542
 543
 544 int bend_search(void *handle, bend_search_rr *rr)
 545 {
 546         HV *href;
 547         AV *aref;
 548         SV **temp;
 549         SV *hits;
 550         SV *err_code;
 551         SV *err_str;
 552         char *ODR_errstr;
 553         STRLEN len;
 554         int i;
 555         char **basenames;
 556         int n;
 557         WRBUF query;
 558         char *ptr;
 559         SV *point;
 560         SV *ODR_point;
 561         Zfront_handle *zhandle = (Zfront_handle *)handle;
 562         CV* handler_cv = 0;
 563
 564         dSP;
 565         ENTER;
 566         SAVETMPS;
 567
 568         aref = newAV();
 569         basenames = rr->basenames;
 570         for (i = 0; i < rr->num_bases; i++)
 571         {
 572                 av_push(aref, newSVpv(*basenames++, 0));
 573         }
 574         href = newHV();
 575         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 576         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 577         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 578         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 579         hv_store(href, "HITS", 4, newSViv(0), 0);
 580         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 581         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 582         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 583         hv_store(href, "RPN", 3, zquery2perl(rr->query), 0);
 584         query = zquery2pquery(rr->query);
 585         if (query)
 586         {
 587                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 588         }
 589         else
 590         {
 591                 rr->errcode = 108;
 592         }
 593         PUSHMARK(sp);
 594
 595         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 596
 597         PUTBACK;
 598
 599         handler_cv = simpleserver_sv2cv( search_ref );
 600         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 601
 602         SPAGAIN;
 603
 604         temp = hv_fetch(href, "HITS", 4, 1);
 605         hits = newSVsv(*temp);
 606
 607         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 608         err_code = newSVsv(*temp);
 609
 610         temp = hv_fetch(href, "ERR_STR", 7, 1);
 611         err_str = newSVsv(*temp);
 612
 613         temp = hv_fetch(href, "HANDLE", 6, 1);
 614         point = newSVsv(*temp);
 615
 616         PUTBACK;
 617         FREETMPS;
 618         LEAVE;
 619
 620         hv_undef(href);
 621         av_undef(aref);
 622         rr->hits = SvIV(hits);
 623         rr->errcode = SvIV(err_code);
 624         ptr = SvPV(err_str, len);
 625         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 626         strcpy(ODR_errstr, ptr);
 627         rr->errstring = ODR_errstr;
 628 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 629         memcpy(ODR_point, point, sizeof(*point));
 630         zhandle->handle = ODR_point;*/
 631         zhandle->handle = point;
 632         handle = zhandle;
 633         sv_free(hits);
 634         sv_free(err_code);
 635         sv_free(err_str);
 636         sv_free( (SV*) aref);
 637         sv_free( (SV*) href);
 638         /*sv_free(point);*/
 639         wrbuf_free(query, 1);
 640         return 0;
 641 }
 642
 643
 644 /* ### this is worryingly similar to oid2str() */
 645 WRBUF oid2dotted(int *oid)
 646 {
 647
 648         WRBUF buf = wrbuf_alloc();
 649         int dot = 0;
 650
 651         for (; *oid != -1 ; oid++)
 652         {
 653                 char ibuf[16];
 654                 if (dot)
 655                 {
 656                         wrbuf_putc(buf, '.');
 657                 }
 658                 else
 659                 {
 660                         dot = 1;
 661                 }
 662                 sprintf(ibuf, "%d", *oid);
 663                 wrbuf_puts(buf, ibuf);
 664         }
 665         return buf;
 666 }
 667
 668
 669 int dotted2oid(char *dotted, int *buffer)
 670 {
 671         int *oid;
 672         char ibuf[16];
 673         char *ptr;
 674         int n = 0;
 675
 676         ptr = ibuf;
 677         oid = buffer;
 678         while (*dotted)
 679         {
 680                 if (*dotted == '.')
 681                 {
 682                         n++;
 683                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 684                         {
 685                                 *oid = -1;
 686                                 return -1;
 687                         }
 688                         *ptr = 0;
 689                         sscanf(ibuf, "%d", oid++);
 690                         ptr = ibuf;
 691                         dotted++;
 692
 693                 }
 694                 else
 695                 {
 696                         *ptr++ = *dotted++;
 697                 }
 698         }
 699         if (n < MAX_OID)
 700         {
 701                 *ptr = 0;
 702                 sscanf(ibuf, "%d", oid++);
 703         }
 704         *oid = -1;
 705         return 0;
 706 }
 707
 708
 709 int bend_fetch(void *handle, bend_fetch_rr *rr)
 710 {
 711         HV *href;
 712         SV **temp;
 713         SV *basename;
 714         SV *record;
 715         SV *last;
 716         SV *err_code;
 717         SV *err_string;
 718         SV *sur_flag;
 719         SV *point;
 720         SV *rep_form;
 721         char *ptr;
 722         char *ODR_record;
 723         char *ODR_basename;
 724         char *ODR_errstr;
 725         int *ODR_oid_buf;
 726         oident *oid;
 727         WRBUF oid_dotted;
 728         Zfront_handle *zhandle = (Zfront_handle *)handle;
 729         CV* handler_cv = 0;
 730
 731         Z_RecordComposition *composition;
 732         Z_ElementSetNames *simple;
 733         STRLEN length;
 734
 735         dSP;
 736         ENTER;
 737         SAVETMPS;
 738
 739         rr->errcode = 0;
 740         href = newHV();
 741         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 742         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 743         oid_dotted = oid2dotted(rr->request_format_raw);
 744         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 745         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 746         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 747         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 748         hv_store(href, "LAST", 4, newSViv(0), 0);
 749         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 750         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 751         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 752         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 753         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 754         if (rr->comp)
 755         {
 756                 composition = rr->comp;
 757                 if (composition->which == Z_RecordComp_simple)
 758                 {
 759                         simple = composition->u.simple;
 760                         if (simple->which == Z_ElementSetNames_generic)
 761                         {
 762                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 763                         }
 764                         else
 765                         {
 766                                 rr->errcode = 26;
 767                         }
 768                 }
 769                 else
 770                 {
 771                         rr->errcode = 26;
 772                 }
 773         }
 774
 775         PUSHMARK(sp);
 776
 777         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 778
 779         PUTBACK;
 780
 781         handler_cv = simpleserver_sv2cv( fetch_ref );
 782         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 783
 784         SPAGAIN;
 785
 786         temp = hv_fetch(href, "BASENAME", 8, 1);
 787         basename = newSVsv(*temp);
 788
 789         temp = hv_fetch(href, "RECORD", 6, 1);
 790         record = newSVsv(*temp);
 791
 792         temp = hv_fetch(href, "LAST", 4, 1);
 793         last = newSVsv(*temp);
 794
 795         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 796         err_code = newSVsv(*temp);
 797
 798         temp = hv_fetch(href, "ERR_STR", 7, 1),
 799         err_string = newSVsv(*temp);
 800
 801         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 802         sur_flag = newSVsv(*temp);
 803
 804         temp = hv_fetch(href, "REP_FORM", 8, 1);
 805         rep_form = newSVsv(*temp);
 806
 807         temp = hv_fetch(href, "HANDLE", 6, 1);
 808         point = newSVsv(*temp);
 809
 810         PUTBACK;
 811         FREETMPS;
 812         LEAVE;
 813
 814         hv_undef(href);
 815
 816         ptr = SvPV(basename, length);
 817         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 818         strcpy(ODR_basename, ptr);
 819         rr->basename = ODR_basename;
 820
 821         ptr = SvPV(rep_form, length);
 822         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 823         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 824         {
 825                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 826         }
 827         rr->output_format_raw = ODR_oid_buf;
 828
 829         ptr = SvPV(record, length);
 830         oid = oid_getentbyoid(ODR_oid_buf);
 831         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 832         {
 833                 rr->record = (char *) read_grs1(ptr, rr->stream);
 834                 rr->len = -1;
 835         }
 836         else
 837         {
 838                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 839                 strcpy(ODR_record, ptr);
 840                 rr->record = ODR_record;
 841                 rr->len = length;
 842         }
 843         zhandle->handle = point;
 844         handle = zhandle;
 845         rr->last_in_set = SvIV(last);
 846
 847         if (!(rr->errcode))
 848         {
 849                 rr->errcode = SvIV(err_code);
 850                 ptr = SvPV(err_string, length);
 851                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 852                 strcpy(ODR_errstr, ptr);
 853                 rr->errstring = ODR_errstr;
 854         }
 855         rr->surrogate_flag = SvIV(sur_flag);
 856
 857         wrbuf_free(oid_dotted, 1);
 858         sv_free((SV*) href);
 859         sv_free(basename);
 860         sv_free(record);
 861         sv_free(last);
 862         sv_free(err_string);
 863         sv_free(err_code),
 864         sv_free(sur_flag);
 865         sv_free(rep_form);
 866
 867         return 0;
 868 }
 869
 870
 871 int bend_present(void *handle, bend_present_rr *rr)
 872 {
 873
 874         HV *href;
 875         SV **temp;
 876         SV *err_code;
 877         SV *err_string;
 878         SV *hits;
 879         SV *point;
 880         STRLEN len;
 881         Z_RecordComposition *composition;
 882         Z_ElementSetNames *simple;
 883         char *ODR_errstr;
 884         char *ptr;
 885         Zfront_handle *zhandle = (Zfront_handle *)handle;
 886         CV* handler_cv = 0;
 887
 888 /*      WRBUF oid_dotted; */
 889
 890         dSP;
 891         ENTER;
 892         SAVETMPS;
 893
 894         href = newHV();
 895         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 896         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 897         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 898         hv_store(href, "START", 5, newSViv(rr->start), 0);
 899         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 900         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 901         /*oid_dotted = oid2dotted(rr->request_format_raw);
 902         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 903         hv_store(href, "HITS", 4, newSViv(0), 0);
 904         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 905         if (rr->comp)
 906         {
 907                 composition = rr->comp;
 908                 if (composition->which == Z_RecordComp_simple)
 909                 {
 910                         simple = composition->u.simple;
 911                         if (simple->which == Z_ElementSetNames_generic)
 912                         {
 913                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 914                         }
 915                         else
 916                         {
 917                                 rr->errcode = 26;
 918                                 return 0;
 919                         }
 920                 }
 921                 else
 922                 {
 923                         rr->errcode = 26;
 924                         return 0;
 925                 }
 926         }
 927
 928         PUSHMARK(sp);
 929
 930         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 931
 932         PUTBACK;
 933
 934         handler_cv = simpleserver_sv2cv( present_ref );
 935         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 936
 937         SPAGAIN;
 938
 939         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 940         err_code = newSVsv(*temp);
 941
 942         temp = hv_fetch(href, "ERR_STR", 7, 1);
 943         err_string = newSVsv(*temp);
 944
 945         temp = hv_fetch(href, "HITS", 4, 1);
 946         hits = newSVsv(*temp);
 947
 948         temp = hv_fetch(href, "HANDLE", 6, 1);
 949         point = newSVsv(*temp);
 950
 951         PUTBACK;
 952         FREETMPS;
 953         LEAVE;
 954
 955         hv_undef(href);
 956         rr->errcode = SvIV(err_code);
 957         rr->hits = SvIV(hits);
 958
 959         ptr = SvPV(err_string, len);
 960         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 961         strcpy(ODR_errstr, ptr);
 962         rr->errstring = ODR_errstr;
 963 /*      wrbuf_free(oid_dotted, 1);*/
 964         zhandle->handle = point;
 965         handle = zhandle;
 966         sv_free(err_code);
 967         sv_free(err_string);
 968         sv_free(hits);
 969         sv_free( (SV*) href);
 970
 971         return 0;
 972 }
 973
 974
 975 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 976 {
 977         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 978         return 0;
 979 }
 980
 981
 982 int bend_delete(void *handle, bend_delete_rr *rr)
 983 {
 984         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 985         return 0;
 986 }
 987
 988
 989 int bend_scan(void *handle, bend_scan_rr *rr)
 990 {
 991         HV *href;
 992         AV *aref;
 993         AV *list;
 994         AV *entries;
 995         HV *scan_item;
 996         struct scan_entry *scan_list;
 997         struct scan_entry *buffer;
 998         int *step_size = rr->step_size;
 999         int i;
1000         char **basenames;
1001         SV **temp;
1002         SV *err_code = sv_newmortal();
1003         SV *err_str = sv_newmortal();
1004         SV *point = sv_newmortal();
1005         SV *status = sv_newmortal();
1006         SV *number = sv_newmortal();
1007         char *ptr;
1008         char *ODR_errstr;
1009         STRLEN len;
1010         int term_len;
1011         SV *term_tmp;
1012         SV *entries_ref;
1013         Zfront_handle *zhandle = (Zfront_handle *)handle;
1014         CV* handler_cv = 0;
1015
1016         dSP;
1017         ENTER;
1018         SAVETMPS;
1019         href = newHV();
1020         list = newAV();
1021         if (rr->term->term->which == Z_Term_general)
1022         {
1023                 term_len = rr->term->term->u.general->len;
1024                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1025         } else {
1026                 rr->errcode = 229;      /* Unsupported term type */
1027                 return 0;
1028         }
1029         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1030         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1031         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1032         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1033         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1034         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1035         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1036         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1037         aref = newAV();
1038         basenames = rr->basenames;
1039         for (i = 0; i < rr->num_bases; i++)
1040         {
1041                 av_push(aref, newSVpv(*basenames++, 0));
1042         }
1043         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1044
1045         PUSHMARK(sp);
1046
1047         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1048
1049         PUTBACK;
1050
1051         handler_cv = simpleserver_sv2cv( scan_ref );
1052         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1053
1054         SPAGAIN;
1055
1056         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1057         err_code = newSVsv(*temp);
1058
1059         temp = hv_fetch(href, "ERR_STR", 7, 1);
1060         err_str = newSVsv(*temp);
1061
1062         temp = hv_fetch(href, "HANDLE", 6, 1);
1063         point = newSVsv(*temp);
1064
1065         temp = hv_fetch(href, "STATUS", 6, 1);
1066         status = newSVsv(*temp);
1067
1068         temp = hv_fetch(href, "NUMBER", 6, 1);
1069         number = newSVsv(*temp);
1070
1071         temp = hv_fetch(href, "ENTRIES", 7, 1);
1072         entries_ref = newSVsv(*temp);
1073
1074         PUTBACK;
1075         FREETMPS;
1076         LEAVE;
1077
1078         ptr = SvPV(err_str, len);
1079         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1080         strcpy(ODR_errstr, ptr);
1081         rr->errstring = ODR_errstr;
1082         rr->errcode = SvIV(err_code);
1083         rr->num_entries = SvIV(number);
1084         rr->status = SvIV(status);
1085         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1086         buffer = scan_list;
1087         entries = (AV *)SvRV(entries_ref);
1088         for (i = 0; i < rr->num_entries; i++)
1089         {
1090                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1091                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1092                 ptr = SvPV(*temp, len);
1093                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1094                 strcpy(buffer->term, ptr);
1095                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1096                 buffer->occurrences = SvIV(*temp);
1097                 buffer++;
1098                 hv_undef(scan_item);
1099         }
1100         rr->entries = scan_list;
1101         zhandle->handle = point;
1102         handle = zhandle;
1103         sv_free(err_code);
1104         sv_free(err_str);
1105         sv_free(status);
1106         sv_free(number);
1107         hv_undef(href);
1108         sv_free((SV *)href);
1109         av_undef(aref);
1110         sv_free((SV *)aref);
1111         av_undef(list);
1112         sv_free((SV *)list);
1113         av_undef(entries);
1114         /*sv_free((SV *)entries);*/
1115         sv_free(entries_ref);
1116
1117         return 0;
1118 }
1119
1120
1121 bend_initresult *bend_init(bend_initrequest *q)
1122 {
1123         int dummy = simpleserver_clone();
1124         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
1125         HV *href;
1126         SV **temp;
1127         SV *id;
1128         SV *name;
1129         SV *ver;
1130         SV *err_str;
1131         SV *status;
1132         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
1133         STRLEN len;
1134         int n;
1135         SV *handle;
1136         /*char *name_ptr;
1137         char *ver_ptr;*/
1138         char *ptr;
1139         char *user = NULL;
1140         char *passwd = NULL;
1141         CV* handler_cv = 0;
1142
1143         dSP;
1144         ENTER;
1145         SAVETMPS;
1146
1147         /*q->bend_sort = bend_sort;*/
1148         if (search_ref)
1149         {
1150                 q->bend_search = bend_search;
1151         }
1152         if (present_ref)
1153         {
1154                 q->bend_present = bend_present;
1155         }
1156         /*q->bend_esrequest = bend_esrequest;*/
1157         /*q->bend_delete = bend_delete;*/
1158         if (fetch_ref)
1159         {
1160                 q->bend_fetch = bend_fetch;
1161         }
1162         if (scan_ref)
1163         {
1164                 q->bend_scan = bend_scan;
1165         }
1166         href = newHV();
1167         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1168         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1169         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1170         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1171         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1172         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1173         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1174         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1175         if (q->auth) {
1176             if (q->auth->which == Z_IdAuthentication_open) {
1177                 char *openpass = xstrdup (q->auth->u.open);
1178                 char *cp = strchr (openpass, '/');
1179                 if (cp) {
1180                     *cp = '\0';
1181                     user = nmem_strdup (odr_getmem (q->stream), openpass);
1182                     passwd = nmem_strdup (odr_getmem (q->stream), cp + 1);
1183                 }
1184                 xfree(openpass);
1185             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1186                 user = q->auth->u.idPass->userId;
1187                 passwd = q->auth->u.idPass->password;
1188             }
1189             /* ### some code paths have user/password unassigned here */
1190             hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1191             hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1192         }
1193
1194         PUSHMARK(sp);
1195
1196         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1197
1198         PUTBACK;
1199
1200         if (init_ref != NULL)
1201         {
1202              handler_cv = simpleserver_sv2cv( init_ref );
1203              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1204         }
1205
1206         SPAGAIN;
1207
1208         temp = hv_fetch(href, "IMP_ID", 6, 1);
1209         id = newSVsv(*temp);
1210
1211         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1212         name = newSVsv(*temp);
1213
1214         temp = hv_fetch(href, "IMP_VER", 7, 1);
1215         ver = newSVsv(*temp);
1216
1217         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1218         status = newSVsv(*temp);
1219
1220         temp = hv_fetch(href, "ERR_STR", 7, 1);
1221         err_str = newSVsv(*temp);
1222
1223         temp = hv_fetch(href, "HANDLE", 6, 1);
1224         handle= newSVsv(*temp);
1225
1226         hv_undef(href);
1227         PUTBACK;
1228         FREETMPS;
1229         LEAVE;
1230         zhandle->handle = handle;
1231         r->errcode = SvIV(status);
1232         ptr = SvPV(err_str, len);
1233         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1234         strcpy(r->errstring, ptr);
1235         sv_free(err_str);
1236         r->handle = zhandle;
1237         ptr = SvPV(id, len);
1238         q->implementation_id = (char *)xmalloc(len + 1);
1239         strcpy(q->implementation_id, ptr);
1240         ptr = SvPV(name, len);
1241         q->implementation_name = (char *)xmalloc(len + 1);
1242         strcpy(q->implementation_name, ptr);
1243 /*      q->implementation_name = SvPV(name, len);*/
1244         ptr = SvPV(ver, len);
1245         q->implementation_version = (char *)xmalloc(len + 1);
1246         strcpy(q->implementation_version, ptr);
1247
1248         return r;
1249 }
1250
1251
1252 void bend_close(void *handle)
1253 {
1254         HV *href;
1255         Zfront_handle *zhandle = (Zfront_handle *)handle;
1256         SV **temp;
1257         CV* handler_cv = 0;
1258
1259         dSP;
1260         ENTER;
1261         SAVETMPS;
1262
1263         if (close_ref == NULL)
1264         {
1265                 return;
1266         }
1267
1268         href = newHV();
1269         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1270
1271         PUSHMARK(sp);
1272
1273         XPUSHs(sv_2mortal(newRV((SV *)href)));
1274
1275         PUTBACK;
1276
1277         handler_cv = simpleserver_sv2cv( close_ref );
1278         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1279
1280         SPAGAIN;
1281
1282         PUTBACK;
1283         FREETMPS;
1284         LEAVE;
1285
1286         xfree(handle);
1287         simpleserver_free();
1288
1289         return;
1290 }
1291
1292
1293 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1294
1295 void
1296 set_init_handler(arg)
1297                 SV *arg
1298         CODE:
1299                 init_ref = newSVsv(arg);
1300
1301
1302 void
1303 set_close_handler(arg)
1304                 SV *arg
1305         CODE:
1306                 close_ref = newSVsv(arg);
1307
1308
1309 void
1310 set_sort_handler(arg)
1311                 SV *arg
1312         CODE:
1313                 sort_ref = newSVsv(arg);
1314
1315 void
1316 set_search_handler(arg)
1317                 SV *arg
1318         CODE:
1319                 search_ref = newSVsv(arg);
1320
1321
1322 void
1323 set_fetch_handler(arg)
1324                 SV *arg
1325         CODE:
1326                 fetch_ref = newSVsv(arg);
1327
1328
1329 void
1330 set_present_handler(arg)
1331                 SV *arg
1332         CODE:
1333                 present_ref = newSVsv(arg);
1334
1335
1336 void
1337 set_esrequest_handler(arg)
1338                 SV *arg
1339         CODE:
1340                 esrequest_ref = newSVsv(arg);
1341
1342
1343 void
1344 set_delete_handler(arg)
1345                 SV *arg
1346         CODE:
1347                 delete_ref = newSVsv(arg);
1348
1349
1350 void
1351 set_scan_handler(arg)
1352                 SV *arg
1353         CODE:
1354                 scan_ref = newSVsv(arg);
1355
1356
1357 int
1358 start_server(...)
1359         PREINIT:
1360                 char **argv;
1361                 char **argv_buf;
1362                 char *ptr;
1363                 int i;
1364                 STRLEN len;
1365         CODE:
1366                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1367                 argv = argv_buf;
1368                 for (i = 0; i < items; i++)
1369                 {
1370                         ptr = SvPV(ST(i), len);
1371                         *argv_buf = (char *)xmalloc(len + 1);
1372                         strcpy(*argv_buf++, ptr);
1373                 }
1374                 *argv_buf = NULL;
1375                 root_perl_context = PERL_GET_CONTEXT;
1376
1377                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1378         OUTPUT:
1379                 RETVAL
1380
1381
1382 int
1383 ScanSuccess()
1384         CODE:
1385                 RETVAL = BEND_SCAN_SUCCESS;
1386         OUTPUT:
1387                 RETVAL
1388
1389 int
1390 ScanPartial()
1391         CODE:
1392                 RETVAL = BEND_SCAN_PARTIAL;
1393         OUTPUT:
1394                 RETVAL
1395
1396