native.c

   1 /* native.c - table of native functions
   2
   3    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
   4    R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
   5    M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
   6    P. Tomsich, J. Wenninger
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  23    02111-1307, USA.
  24
  25    Contact: cacao@complang.tuwien.ac.at
  26
  27    Authors: Reinhard Grafl
  28             Roman Obermaisser
  29             Andreas Krall
  30
  31    The .hh files created with the header file generator are all
  32    included here as are the C functions implementing these methods.
  33
  34    $Id: native.c 862 2004-01-06 23:42:01Z stefan $
  35
  36 */
  37
  38
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <time.h>
  42 #include <math.h>
  43 #include <string.h>
  44 #include <assert.h>
  45 #include <sys/time.h>
  46 #include <utime.h>
  47
  48 #include "config.h"
  49 #include "global.h"
  50 #include "jni.h"
  51 #include "native.h"
  52 #include "nativetypes.hh"
  53 #include "builtin.h"
  54 #include "asmpart.h"
  55 #include "tables.h"
  56 #include "loader.h"
  57 #include "jni.h"
  58 #include "toolbox/loging.h"
  59 #include "toolbox/memory.h"
  60 #include "threads/thread.h"
  61 #include "threads/threadio.h"
  62 #include "threads/locks.h"
  63
  64 /* Include files for IO functions */
  65
  66 #include <fcntl.h>
  67 #include <dirent.h>
  68 #include <sys/types.h>
  69 #ifdef _OSF_SOURCE
  70 #include <sys/mode.h>
  71 #endif
  72 #include <sys/stat.h>
  73
  74 #include "threads/threadio.h"
  75
  76 /* searchpath for classfiles */
  77 char *classpath;
  78
  79 /* for java-string to char conversion */
  80 #define MAXSTRINGSIZE 1000
  81
  82 /******************** systemclasses required for native methods ***************/
  83
  84 classinfo *class_java_lang_Class;
  85 classinfo *class_java_lang_VMClass;
  86 methodinfo *method_vmclass_init;
  87 /* static classinfo *class_java_lang_Cloneable=0; */ /* now in global.h */
  88 classinfo *class_java_lang_CloneNotSupportedException;
  89 classinfo *class_java_lang_System;
  90 classinfo *class_java_lang_ClassLoader;
  91 classinfo *class_java_lang_NoClassDefFoundError;
  92 classinfo *class_java_lang_ClassNotFoundException;
  93 classinfo *class_java_lang_LinkageError;
  94 classinfo *class_java_lang_InstantiationException;
  95 classinfo *class_java_lang_NoSuchMethodError;
  96 classinfo *class_java_lang_NoSuchFieldError;
  97 classinfo *class_java_lang_ClassFormatError;
  98 classinfo *class_java_lang_IllegalArgumentException;
  99 classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
 100 classinfo *class_java_lang_NoSuchFieldException;
 101 classinfo *class_java_io_SyncFailedException;
 102 classinfo *class_java_io_IOException;
 103 classinfo *class_java_io_FileNotFoundException;
 104 classinfo *class_java_io_UnixFileSystem;
 105 classinfo *class_java_security_PrivilegedActionException;
 106 classinfo *class_java_net_UnknownHostException;
 107 classinfo *class_java_net_SocketException;
 108 classinfo *class_java_lang_NoSuchMethodException;
 109 classinfo *class_java_lang_Double;
 110 classinfo *class_java_lang_Float;
 111 classinfo *class_java_lang_Long;
 112 classinfo *class_java_lang_Byte;
 113 classinfo *class_java_lang_Short;
 114 classinfo *class_java_lang_Boolean;
 115 classinfo *class_java_lang_Void;
 116 classinfo *class_java_lang_Character;
 117 classinfo *class_java_lang_Integer;
 118
 119 /* the system classloader object */
 120 struct java_lang_ClassLoader *SystemClassLoader = NULL;
 121
 122 /* for raising exceptions from native methods */
 123 THREADSPECIFIC java_objectheader* _exceptionptr = NULL;
 124
 125 /************* use classinfo structure as java.lang.Class object **************/
 126
 127 void use_class_as_object(classinfo *c)
 128 {
 129         vftbl *vt;
 130 /*      vftbl *newtbl; */
 131
 132         if (!class_java_lang_Class)
 133                 class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
 134
 135         vt = class_java_lang_Class->vftbl;
 136
 137
 138         if (!c->classvftbl) {
 139                 c->classvftbl = true;
 140
 141                 /*                copy_vftbl(&newtbl, vt);
 142                                                   newtbl->class = c->header.vftbl->class;
 143                                                   newtbl->baseval = c->header.vftbl->baseval;
 144                                                   newtbl->diffval = c->header.vftbl->diffval;
 145                                                   c->header.vftbl = newtbl;*/
 146
 147                 c->header.vftbl = class_java_lang_Class->vftbl;
 148
 149                 if (!class_java_lang_VMClass) {
 150                         loader_load_sysclass(&class_java_lang_VMClass,
 151                                                                  utf_new_char("java/lang/VMClass"));
 152
 153                         method_vmclass_init =
 154                                 class_findmethod(class_java_lang_VMClass,
 155                                                                  utf_new_char("<init>"),
 156                                                                  utf_new_char("(Lgnu/classpath/RawData;)V"));
 157
 158                         if (method_vmclass_init == 0) {
 159                                 class_showmethods(class_java_lang_VMClass);
 160                                 panic("Needed class initializer for VMClass could not be found");
 161                         }
 162                 }
 163                 {
 164                         java_objectheader *vmo = builtin_new(class_java_lang_VMClass);
 165
 166                         if (!vmo) panic("Error while creating instance of java/lang/VMClass");
 167                         asm_calljavafunction(method_vmclass_init, vmo, c, NULL, NULL);
 168                         c->vmClass = (java_lang_VMClass *) vmo;
 169                         /*log_text("VMCLASS has been attached");*/
 170                 }
 171         }
 172 }
 173
 174
 175 /*************************** include native methods ***************************/
 176
 177 #ifdef USE_GTK
 178 #include "nat/GdkGraphics.c"
 179 #include "nat/GtkComponentPeer.c"
 180 #include "nat/GdkPixbufDecoder.c"
 181 #include "nat/GtkScrollPanePeer.c"
 182 #include "nat/GtkFileDialogPeer.c"
 183 #include "nat/GtkLabelPeer.c"
 184 #endif
 185
 186
 187 /************************** tables for methods ********************************/
 188
 189 #undef JOWENN_DEBUG
 190 #undef JOWENN_DEBUG1
 191
 192 /* table for locating native methods */
 193 static struct nativeref {
 194         char *classname;
 195         char *methodname;
 196         char *descriptor;
 197         bool isstatic;
 198         functionptr func;
 199 } nativetable [] = {
 200
 201 #include "nativetable.hh"
 202
 203 };
 204
 205
 206 #define NATIVETABLESIZE  (sizeof(nativetable)/sizeof(struct nativeref))
 207
 208 /* table for fast string comparison */
 209 static struct nativecompref {
 210         utf *classname;
 211         utf *methodname;
 212         utf *descriptor;
 213         bool isstatic;
 214         functionptr func;
 215 } nativecomptable [NATIVETABLESIZE];
 216
 217 /* string comparsion table initialized */
 218 static bool nativecompdone = false;
 219
 220
 221 /******************************************************************************/
 222 /******************************************************************************/
 223 #include "natcalls.h"
 224
 225 /* string call comparison table initialized */
 226
 227 /******************************************************************************/
 228 /******************************************************************************/
 229
 230 /*--------------- native method calls & classes used -------------------------*/
 231
 232
 233
 234 /* throw some loader exceptions */
 235
 236 void throw_noclassdeffounderror_message(utf* classname)
 237 {
 238         if (!class_java_lang_NoClassDefFoundError) {
 239                 panic("java.lang.NoClassDefFoundError not found. Maybe wrong classpath?");
 240         }
 241
 242         /* throws a NoClassDefFoundError with message */
 243         *exceptionptr = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
 244                                                                                           javastring_new(classname));
 245 }
 246
 247
 248 void throw_linkageerror_message(utf* classname)
 249 {
 250         if (!class_java_lang_LinkageError) {
 251                 panic("java.lang.LinkageError not found. Maybe wrong classpath?");
 252         }
 253
 254         /* throws a LinkageError with message */
 255         *exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
 256                                                                                           javastring_new(classname));
 257 }
 258
 259
 260 /*********************** function: native_loadclasses **************************
 261
 262         load classes required for native methods
 263
 264 *******************************************************************************/
 265
 266 void native_loadclasses()
 267 {
 268         static int classesLoaded=0; /*temporary hack JoWenn*/
 269         if (classesLoaded) return;
 270         classesLoaded = 1;
 271 /*      log_text("loadclasses entered");*/
 272
 273
 274         /*class_java_lang_System =*/
 275         (void) class_new(utf_new_char("java/lang/VMClass"));/*JoWenn*/
 276         (void) class_new(utf_new_char("java/lang/Class"));/*JoWenn*/
 277
 278         /* class_new adds the class to the list of classes to be loaded */
 279         if (!class_java_lang_Cloneable)
 280                 class_java_lang_Cloneable =
 281                         class_new(utf_new_char("java/lang/Cloneable"));
 282 /*      log_text("loadclasses: class_java_lang_Cloneable has been initialized");*/
 283         class_java_lang_CloneNotSupportedException =
 284                 class_new(utf_new_char("java/lang/CloneNotSupportedException"));
 285         if (!class_java_lang_Class)
 286                 class_java_lang_Class =
 287                         class_new(utf_new_char("java/lang/Class"));
 288         class_java_io_IOException =
 289                 class_new(utf_new_char("java/io/IOException"));
 290         class_java_io_FileNotFoundException =
 291                 class_new(utf_new_char("java/io/FileNotFoundException"));
 292         class_java_lang_NoClassDefFoundError =
 293                 class_new(utf_new_char("java/lang/NoClassDefFoundError"));
 294         class_java_lang_ClassNotFoundException =
 295                 class_new(utf_new_char("java/lang/ClassNotFoundException"));
 296         class_java_lang_LinkageError =
 297                 class_new(utf_new_char("java/lang/LinkageError"));
 298         class_java_lang_InstantiationException =
 299                 class_new(utf_new_char("java/lang/InstantiationException"));
 300         class_java_lang_NoSuchMethodError =
 301                 class_new(utf_new_char("java/lang/NoSuchMethodError"));
 302         class_java_lang_NoSuchFieldError =
 303                 class_new(utf_new_char("java/lang/NoSuchFieldError"));
 304         class_java_lang_ClassFormatError =
 305                 class_new(utf_new_char("java/lang/ClassFormatError"));
 306         class_java_io_SyncFailedException =
 307                 class_new(utf_new_char("java/io/SyncFailedException"));
 308
 309 /*      log_text("native_loadclasses: class_new(\"java/lang/ClassLoader\")");           */
 310         class_java_lang_ClassLoader =
 311                 class_new(utf_new_char("java/lang/ClassLoader"));
 312 /*      log_text("native_loadclasses: class_new(\"java/security/PrivilegedActionException\")");         */
 313         class_java_security_PrivilegedActionException =
 314                 class_new(utf_new_char("java/security/PrivilegedActionException"));
 315
 316         loader_load_sysclass(&class_java_net_UnknownHostException,
 317                                                  utf_new_char("java/net/UnknownHostException"));
 318         loader_load_sysclass(&class_java_net_SocketException,
 319                                                  utf_new_char("java/net/SocketException"));
 320
 321         class_java_lang_IllegalArgumentException =
 322                 class_new(utf_new_char("java/lang/IllegalArgumentException"));
 323         class_java_lang_ArrayIndexOutOfBoundsException =
 324                 class_new(utf_new_char("java/lang/ArrayIndexOutOfBoundsException"));
 325         class_java_lang_NoSuchFieldException =
 326                 class_new(utf_new_char("java/lang/NoSuchFieldException"));
 327         class_java_lang_NoSuchMethodException =
 328                 class_new(utf_new_char("java/lang/NoSuchMethodException"));
 329
 330         /* load classes for wrapping primitive types */
 331         class_java_lang_Double    = class_new(utf_new_char("java/lang/Double"));
 332         class_init(class_java_lang_Double);
 333
 334         class_java_lang_Float     = class_new(utf_new_char("java/lang/Float"));
 335         class_java_lang_Character =     class_new(utf_new_char("java/lang/Character"));
 336         class_java_lang_Integer   = class_new(utf_new_char("java/lang/Integer"));
 337         class_java_lang_Long      = class_new(utf_new_char("java/lang/Long"));
 338         class_java_lang_Byte      = class_new(utf_new_char("java/lang/Byte"));
 339         class_java_lang_Short     = class_new(utf_new_char("java/lang/Short"));
 340         class_java_lang_Boolean   = class_new(utf_new_char("java/lang/Boolean"));
 341         class_java_lang_Void      = class_new(utf_new_char("java/lang/Void"));
 342
 343         classesLoaded = 1;
 344 }
 345
 346
 347 /*************** adds a class to the vector of loaded classes ****************/
 348
 349 void systemclassloader_addclass(classinfo *c)
 350 {
 351         methodinfo *m;
 352
 353         /* find method addClass of java.lang.ClassLoader */
 354         m = class_resolvemethod(class_java_lang_ClassLoader,
 355                                                         utf_new_char("addClass"),
 356                                                         utf_new_char("(Ljava/lang/Class;)")
 357                                                         );
 358
 359         if (!m)
 360                 panic("warning: cannot initialize classloader");
 361
 362         /* prepare class to be passed as argument */
 363         use_class_as_object (c);
 364
 365         /* call 'addClass' */
 366         asm_calljavafunction(m,
 367                                                  (java_objectheader*) SystemClassLoader,
 368                                                  (java_objectheader*) c,
 369                                                  NULL,
 370                                                  NULL
 371                                                  );
 372 }
 373
 374
 375 /*************** adds a library to the vector of loaded libraries *************/
 376
 377 void systemclassloader_addlibrary(java_objectheader *o)
 378 {
 379         log_text("systemclassloader_addlibrary");
 380 }
 381
 382
 383 /*****************************************************************************
 384
 385         create systemclassloader object and initialize instance fields
 386
 387 ******************************************************************************/
 388
 389 void init_systemclassloader()
 390 {
 391         if (!SystemClassLoader) {
 392                 native_loadclasses();
 393                 log_text("Initializing new system class loader");
 394                 /* create object and call initializer */
 395                 SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
 396
 397                 /* systemclassloader has no parent */
 398                 SystemClassLoader->parent      = NULL;
 399                 SystemClassLoader->initialized = true;
 400         }
 401         log_text("leaving system class loader");
 402 }
 403
 404
 405 /********************* add loaded library name  *******************************/
 406
 407 void systemclassloader_addlibname(java_objectheader *o)
 408 {
 409         methodinfo *m;
 410         jfieldID id;
 411
 412         m = class_resolvemethod(loader_load_sysclass(NULL, utf_new_char ("java/util/Vector")),
 413                                                         utf_new_char("addElement"),
 414                                                         utf_new_char("(Ljava/lang/Object;)V"));
 415
 416         if (!m) panic("cannot initialize classloader");
 417
 418         id = envTable.GetStaticFieldID(&env,
 419                                                                    class_java_lang_ClassLoader,
 420                                                                    "loadedLibraryNames",
 421                                                                    "Ljava/util/Vector;");
 422
 423         if (!id) panic("can not access ClassLoader");
 424
 425         asm_calljavafunction(m,
 426                                                  envTable.GetStaticObjectField(&env, class_java_lang_ClassLoader, id),
 427                                                  o,
 428                                                  NULL,
 429                                                  NULL);
 430 }
 431
 432
 433 /********************* function: native_setclasspath **************************/
 434
 435 void native_setclasspath(char *path)
 436 {
 437         /* set searchpath for classfiles */
 438         classpath = path;
 439 }
 440
 441
 442 /*********************** Function: native_findfunction *************************
 443
 444         Looks up a method (must have the same class name, method name, descriptor
 445         and 'static'ness) and returns a function pointer to it.
 446         Returns: function pointer or NULL (if there is no such method)
 447
 448         Remark: For faster operation, the names/descriptors are converted from C
 449                 strings to Unicode the first time this function is called.
 450
 451 *******************************************************************************/
 452
 453 functionptr native_findfunction(utf *cname, utf *mname,
 454                                                                 utf *desc, bool isstatic)
 455 {
 456         int i;
 457         /* entry of table for fast string comparison */
 458         struct nativecompref *n;
 459         /* for warning message if no function is found */
 460         char *buffer;
 461         int buffer_len;
 462
 463         isstatic = isstatic ? true : false;
 464
 465         if (!nativecompdone) {
 466                 for (i = 0; i < NATIVETABLESIZE; i++) {
 467                         nativecomptable[i].classname  =
 468                                 utf_new_char(nativetable[i].classname);
 469                         nativecomptable[i].methodname =
 470                                 utf_new_char(nativetable[i].methodname);
 471                         nativecomptable[i].descriptor =
 472                                 utf_new_char(nativetable[i].descriptor);
 473                         nativecomptable[i].isstatic   =
 474                                 nativetable[i].isstatic;
 475                         nativecomptable[i].func       =
 476                                 nativetable[i].func;
 477                 }
 478                 nativecompdone = true;
 479         }
 480
 481 #ifdef JOWENN_DEBUG
 482         buffer_len =
 483                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 484
 485         buffer = MNEW(char, buffer_len);
 486
 487         strcpy(buffer, "searching matching function in native table:");
 488         utf_sprint(buffer+strlen(buffer), mname);
 489         strcpy(buffer+strlen(buffer), ": ");
 490         utf_sprint(buffer+strlen(buffer), desc);
 491         strcpy(buffer+strlen(buffer), " for class ");
 492         utf_sprint(buffer+strlen(buffer), cname);
 493
 494         log_text(buffer);
 495
 496         MFREE(buffer, char, buffer_len);
 497 #endif
 498
 499         for (i = 0; i < NATIVETABLESIZE; i++) {
 500                 n = &(nativecomptable[i]);
 501
 502                 if (cname == n->classname && mname == n->methodname &&
 503                     desc == n->descriptor && isstatic == n->isstatic)
 504                         return n->func;
 505 #ifdef JOWENN_DEBUG
 506                         else {
 507                                 if (cname == n->classname && mname == n->methodname )  log_text("static and descriptor mismatch");
 508
 509                                 else {
 510                                         buffer_len =
 511                                           utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
 512
 513                                         buffer = MNEW(char, buffer_len);
 514
 515                                         strcpy(buffer, "comparing with:");
 516                                         utf_sprint(buffer+strlen(buffer), n->methodname);
 517                                         strcpy (buffer+strlen(buffer), ": ");
 518                                         utf_sprint(buffer+strlen(buffer), n->descriptor);
 519                                         strcpy(buffer+strlen(buffer), " for class ");
 520                                         utf_sprint(buffer+strlen(buffer), n->classname);
 521
 522                                         log_text(buffer);
 523
 524                                         MFREE(buffer, char, buffer_len);
 525                                 }
 526                         }
 527 #endif
 528         }
 529
 530
 531         /* no function was found, display warning */
 532
 533         buffer_len =
 534                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 535
 536         buffer = MNEW(char, buffer_len);
 537
 538         strcpy(buffer, "warning: native function ");
 539         utf_sprint(buffer + strlen(buffer), mname);
 540         strcpy(buffer + strlen(buffer), ": ");
 541         utf_sprint(buffer + strlen(buffer), desc);
 542         strcpy(buffer + strlen(buffer), " not found in class ");
 543         utf_sprint(buffer + strlen(buffer), cname);
 544
 545         log_text(buffer);
 546
 547         MFREE(buffer, char, buffer_len);
 548
 549         exit(1);
 550
 551         /* keep compiler happy */
 552         return NULL;
 553 }
 554
 555
 556 /********************** function: javastring_new *******************************
 557
 558         creates a new object of type java/lang/String with the text of
 559         the specified utf8-string
 560
 561         return: pointer to the string or NULL if memory is exhausted.
 562
 563 *******************************************************************************/
 564
 565 /*  java_objectheader *javastring_new(utf *u) */
 566 java_lang_String *javastring_new(utf *u)
 567 {
 568         char *utf_ptr = u->text;        /* current utf character in utf string    */
 569         int utflength = utf_strlen(u);  /* length of utf-string if uncompressed   */
 570         java_lang_String *s;                /* result-string                          */
 571         java_chararray *a;
 572         s4 i;
 573
 574 /*      log_text("javastring_new");*/
 575
 576         s = (java_lang_String*) builtin_new(class_java_lang_String);
 577         a = builtin_newarray_char(utflength);
 578
 579         /* javastring or character-array could not be created */
 580         if ((!a) || (!s))
 581                 return NULL;
 582
 583         /* decompress utf-string */
 584         for (i = 0; i < utflength; i++)
 585                 a->data[i] = utf_nextu2(&utf_ptr);
 586
 587         /* set fields of the javastring-object */
 588         s->value  = a;
 589         s->offset = 0;
 590         s->count  = utflength;
 591
 592 /*      return (java_objectheader*) s; */
 593         return s;
 594 }
 595
 596
 597 /********************** function: javastring_new_char **************************
 598
 599         creates a new java/lang/String object which contains the convertet
 600         C-string passed via text.
 601
 602         return: the object pointer or NULL if memory is exhausted.
 603
 604 *******************************************************************************/
 605
 606 /*  java_objectheader *javastring_new_char (char *text) */
 607 java_lang_String *javastring_new_char (char *text)
 608 {
 609         s4 i;
 610         s4 len = strlen(text); /* length of the string */
 611         java_lang_String *s;   /* result-string */
 612         java_chararray *a;
 613
 614         /*log_text("javastring_new_char");*/
 615         s = (java_lang_String*) builtin_new(class_java_lang_String);
 616         a = builtin_newarray_char(len);
 617
 618         /* javastring or character-array could not be created */
 619         if ((!a) || (!s))
 620                 return NULL;
 621
 622         /* copy text */
 623         for (i = 0; i < len; i++)
 624                 a->data[i] = text[i];
 625
 626         /* set fields of the javastring-object */
 627         s->value  = a;
 628         s->offset = 0;
 629         s->count  = len;
 630
 631 /*      return (java_objectheader*) s; */
 632         return s;
 633 }
 634
 635
 636 /************************* function javastring_tochar **************************
 637
 638         converts a Java string into a C string.
 639
 640         return: pointer to C string
 641
 642         Caution: every call of this function overwrites the previous string !!!
 643
 644 *******************************************************************************/
 645
 646 static char stringbuffer[MAXSTRINGSIZE];
 647
 648 char *javastring_tochar (java_objectheader *so)
 649 {
 650         java_lang_String *s = (java_lang_String*) so;
 651         java_chararray *a;
 652         s4 i;
 653
 654         log_text("javastring_tochar");
 655
 656         if (!s)
 657                 return "";
 658         a = s->value;
 659         if (!a)
 660                 return "";
 661         if (s->count > MAXSTRINGSIZE)
 662                 return "";
 663         for (i = 0; i < s->count; i++)
 664                 stringbuffer[i] = a->data[s->offset+i];
 665         stringbuffer[i] = '\0';
 666         return stringbuffer;
 667 }
 668
 669
 670 /****************** function class_findfield_approx ****************************
 671
 672         searches in 'classinfo'-structure for a field with the
 673         specified name
 674
 675 *******************************************************************************/
 676
 677 fieldinfo *class_findfield_approx(classinfo *c, utf *name)
 678 {
 679         s4 i;
 680         for (i = 0; i < c->fieldscount; i++) {
 681                 /* compare field names */
 682                 if ((c->fields[i].name == name))
 683                         return &(c->fields[i]);
 684         }
 685
 686         /* field was not found, raise exception */
 687         *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 688
 689         return NULL;
 690 }
 691
 692 s4 class_findfield_index_approx (classinfo *c, utf *name)
 693 {
 694         s4 i;
 695         for (i = 0; i < c->fieldscount; i++) {
 696                 /* compare field names */
 697                 if ((c->fields[i].name == name))
 698                         return i;
 699                 }
 700
 701         /* field was not found, raise exception */
 702         *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 703         return -1;
 704 }
 705
 706
 707 /********************** function: native_new_and_init *************************
 708
 709         Creates a new object on the heap and calls the initializer.
 710         Returns the object pointer or NULL if memory is exhausted.
 711
 712 *******************************************************************************/
 713
 714 java_objectheader *native_new_and_init(classinfo *c)
 715 {
 716         methodinfo *m;
 717         java_objectheader *o;
 718
 719         /* if c==NULL it is probebly because loader_load failed */
 720         if (!c) return *exceptionptr;
 721
 722         o = builtin_new(c);          /* create object          */
 723
 724         /*
 725         printf("native_new_and_init ");
 726         utf_display(c->name);
 727         printf("\n");
 728         */
 729         if (!o) return NULL;
 730         /* printf("o!=NULL\n"); */
 731         /* find initializer */
 732
 733         m = class_findmethod(c, utf_new_char("<init>"), utf_new_char("()V"));
 734
 735         if (!m) {                                       /* initializer not found  */
 736                 if (verbose) {
 737                         char logtext[MAXLOGTEXT];
 738                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 739                         utf_sprint(logtext + strlen(logtext), c->name);
 740                         log_text(logtext);
 741                 }
 742                 return o;
 743         }
 744
 745         /* call initializer */
 746
 747         asm_calljavafunction(m, o, NULL, NULL, NULL);
 748
 749         return o;
 750 }
 751
 752
 753 java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
 754 {
 755         methodinfo *m;
 756         java_objectheader *o;
 757
 758         /* if c==NULL it is probebly because loader_load failed */
 759         if (!c) return *exceptionptr;
 760
 761         o = builtin_new(c);          /* create object          */
 762
 763         if (!o) return NULL;
 764
 765         /* find initializer */
 766
 767         m = class_findmethod(c,
 768                                                  utf_new_char("<init>"),
 769                                                  utf_new_char("(Ljava/lang/String;)V"));
 770
 771         if (!m) {                                       /* initializer not found  */
 772                 if (verbose) {
 773                         char logtext[MAXLOGTEXT];
 774                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 775                         utf_sprint(logtext + strlen(logtext), c->name);
 776                         log_text(logtext);
 777                 }
 778                 return o;
 779         }
 780
 781         /* call initializer */
 782
 783         asm_calljavafunction(m, o, s, NULL, NULL);
 784
 785         return o;
 786 }
 787
 788
 789 /******************** function: stringtable_update ****************************
 790
 791         traverses the javastring hashtable and sets the vftbl-entries of
 792         javastrings which were temporarily set to NULL, because
 793         java.lang.Object was not yet loaded
 794
 795 *******************************************************************************/
 796
 797 void stringtable_update ()
 798 {
 799         java_lang_String *js;
 800         java_chararray *a;
 801         literalstring *s;       /* hashtable entry */
 802         int i;
 803
 804         for (i = 0; i < string_hash.size; i++) {
 805                 s = string_hash.ptr[i];
 806                 if (s) {
 807                         while (s) {
 808
 809                                 js = (java_lang_String *) s->string;
 810
 811                                 if (!js || !js->value)
 812                                         /* error in hashtable found */
 813                                         panic("invalid literalstring in hashtable");
 814
 815                                 a = js->value;
 816
 817                                 if (!js->header.vftbl)
 818                                         /* vftbl of javastring is NULL */
 819                                         js->header.vftbl = class_java_lang_String -> vftbl;
 820
 821                                 if (!a->header.objheader.vftbl)
 822                                         /* vftbl of character-array is NULL */
 823                                         a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
 824
 825                                 /* follow link in external hash chain */
 826                                 s = s->hashlink;
 827                         }
 828                 }
 829         }
 830 }
 831
 832
 833 /************************* function: u2_utflength ***************************
 834
 835         returns the utf length in bytes of a u2 array
 836
 837 *****************************************************************************/
 838
 839 u4 u2_utflength(u2 *text, u4 u2_length)
 840 {
 841         u4 result_len =  0;  /* utf length in bytes  */
 842         u2 ch;               /* current unicode character */
 843         u4 len;
 844
 845         for (len = 0; len < u2_length; len++) {
 846                 /* next unicode character */
 847                 ch = *text++;
 848
 849                 /* determine bytes required to store unicode character as utf */
 850                 if (ch && (ch < 0x80))
 851                         result_len++;
 852                 else if (ch < 0x800)
 853                         result_len += 2;
 854                 else
 855                         result_len += 3;
 856         }
 857
 858     return result_len;
 859 }
 860
 861
 862 /********************* function: utf_new_u2 ***********************************
 863
 864         make utf symbol from u2 array,
 865         if isclassname is true '.' is replaced by '/'
 866
 867 *******************************************************************************/
 868
 869 utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
 870 {
 871         char *buffer; /* memory buffer for  unicode characters */
 872         char *pos;    /* pointer to current position in buffer */
 873         u4 left;      /* unicode characters left */
 874         u4 buflength; /* utf length in bytes of the u2 array  */
 875         utf *result;  /* resulting utf-string */
 876         int i;
 877
 878         /* determine utf length in bytes and allocate memory */
 879         /* printf("utf_new_u2: unicode_length=%d\n",unicode_length);            */
 880         buflength = u2_utflength(unicode_pos, unicode_length);
 881         buffer    = MNEW(char, buflength);
 882
 883         /* memory allocation failed */
 884         if (!buffer) {
 885                 printf("length: %d\n",buflength);
 886                 log_text("utf_new_u2:buffer==NULL");
 887         }
 888
 889         left = buflength;
 890         pos  = buffer;
 891
 892         for (i = 0; i++ < unicode_length; unicode_pos++) {
 893                 /* next unicode character */
 894                 u2 c = *unicode_pos;
 895
 896                 if ((c != 0) && (c < 0x80)) {
 897                         /* 1 character */
 898                         left--;
 899                 if ((int) left < 0) break;
 900                         /* convert classname */
 901                         if (isclassname && c == '.')
 902                                 *pos++ = '/';
 903                         else
 904                                 *pos++ = (char) c;
 905
 906                 } else if (c < 0x800) {
 907                         /* 2 characters */
 908                 unsigned char high = c >> 6;
 909                 unsigned char low  = c & 0x3F;
 910                         left = left - 2;
 911                 if ((int) left < 0) break;
 912                 *pos++ = high | 0xC0;
 913                 *pos++ = low  | 0x80;
 914
 915                 } else {
 916                 /* 3 characters */
 917                 char low  = c & 0x3f;
 918                 char mid  = (c >> 6) & 0x3F;
 919                 char high = c >> 12;
 920                         left = left - 3;
 921                 if ((int) left < 0) break;
 922                 *pos++ = high | 0xE0;
 923                 *pos++ = mid  | 0x80;
 924                 *pos++ = low  | 0x80;
 925                 }
 926         }
 927
 928         /* insert utf-string into symbol-table */
 929         result = utf_new(buffer,buflength);
 930
 931         MFREE(buffer, char, buflength);
 932
 933         return result;
 934 }
 935
 936
 937 /********************* function: javastring_toutf *****************************
 938
 939         make utf symbol from javastring
 940
 941 *******************************************************************************/
 942
 943 utf *javastring_toutf(java_lang_String *string, bool isclassname)
 944 {
 945         java_lang_String *str = (java_lang_String *) string;
 946 /*      printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count);
 947         fflush(stdout);*/
 948         return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
 949 }
 950
 951
 952 /********************* function: literalstring_u2 *****************************
 953
 954     searches for the javastring with the specified u2-array in
 955     the string hashtable, if there is no such string a new one is
 956     created
 957
 958     if copymode is true a copy of the u2-array is made
 959
 960 *******************************************************************************/
 961
 962 java_objectheader *literalstring_u2 (java_chararray *a, u4 length, bool copymode )
 963 {
 964     literalstring *s;                /* hashtable element */
 965     java_lang_String *js;            /* u2-array wrapped in javastring */
 966     java_chararray *stringdata;      /* copy of u2-array */
 967     u4 key;
 968     u4 slot;
 969     u2 i;
 970
 971 #if JOWENN_DEBUG1
 972     printf("literalstring_u2: length: %d\n",length);
 973     log_text("literalstring_u2");
 974 #endif
 975
 976     /* find location in hashtable */
 977     key  = unicode_hashkey (a->data, length);
 978     slot = key & (string_hash.size-1);
 979     s    = string_hash.ptr[slot];
 980
 981     while (s) {
 982
 983       js = (java_lang_String *) s->string;
 984
 985       if (js->count == length) {
 986         /* compare text */
 987         for (i=0; i<length; i++)
 988           if (js->value->data[i] != a->data[i]) goto nomatch;
 989
 990         /* string already in hashtable, free memory */
 991         if (!copymode)
 992                 lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
 993
 994 #ifdef JOWENN_DEBUG1
 995         log_text("literalstring_u2: foundentry");
 996         utf_display(javastring_toutf(js,0));
 997 #endif
 998         return (java_objectheader *) js;
 999       }
1000
1001       nomatch:
1002       /* follow link in external hash chain */
1003       s = s->hashlink;
1004     }
1005
1006     if (copymode) {
1007       /* create copy of u2-array for new javastring */
1008       u4 arraysize = sizeof(java_chararray) + sizeof(u2)*(length-1)+10;
1009       stringdata = lit_mem_alloc ( arraysize );
1010       memcpy(stringdata, a, arraysize );
1011     }
1012     else
1013       stringdata = a;
1014
1015     /* location in hashtable found, complete arrayheader */
1016     stringdata -> header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
1017     stringdata -> header.size = length;
1018
1019     /* create new javastring */
1020     js = LNEW (java_lang_String);
1021     js -> header.vftbl = class_java_lang_String -> vftbl;
1022     js -> value  = stringdata;
1023     js -> offset = 0;
1024     js -> count  = length;
1025
1026     /* create new literalstring */
1027     s = NEW (literalstring);
1028     s->hashlink = string_hash.ptr[slot];
1029     s->string   = (java_objectheader *) js;
1030     string_hash.ptr[slot] = s;
1031
1032     /* update numbe of hashtable entries */
1033     string_hash.entries++;
1034
1035     /* reorganization of hashtable */
1036     if ( string_hash.entries > (string_hash.size*2)) {
1037
1038       /* reorganization of hashtable, average length of
1039          the external chains is approx. 2                */
1040
1041       u4 i;
1042       literalstring *s;
1043       hashtable newhash; /* the new hashtable */
1044
1045       /* create new hashtable, double the size */
1046       init_hashtable(&newhash, string_hash.size*2);
1047       newhash.entries=string_hash.entries;
1048
1049       /* transfer elements to new hashtable */
1050       for (i=0; i<string_hash.size; i++) {
1051         s = string_hash.ptr[i];
1052         while (s) {
1053           literalstring *nexts = s -> hashlink;
1054           js   = (java_lang_String*) s->string;
1055           slot = (unicode_hashkey(js->value->data,js->count)) & (newhash.size-1);
1056
1057           s->hashlink = newhash.ptr[slot];
1058           newhash.ptr[slot] = s;
1059
1060           /* follow link in external hash chain */
1061           s = nexts;
1062         }
1063       }
1064
1065       /* dispose old table */
1066       MFREE (string_hash.ptr, void*, string_hash.size);
1067       string_hash = newhash;
1068     }
1069 #ifdef JOWENN_DEBUG1
1070         log_text("literalstring_u2: newly created");
1071 /*      utf_display(javastring_toutf(js,0));*/
1072 #endif
1073
1074     return (java_objectheader *) js;
1075 }
1076
1077 /******************** Function: literalstring_new *****************************
1078
1079     creates a new javastring with the text of the utf-symbol
1080     and inserts it into the string hashtable
1081
1082 *******************************************************************************/
1083
1084 java_objectheader *literalstring_new (utf *u)
1085 {
1086     char *utf_ptr = u->text;         /* pointer to current unicode character in utf string */
1087     u4 utflength  = utf_strlen(u);   /* length of utf-string if uncompressed */
1088     java_chararray *a;               /* u2-array constructed from utf string */
1089     u4 i;
1090 /*    log_text("literalstring_new"); */
1091 /*    utf_display(u);*/
1092     /*if (utflength==0) while (1) sleep(60);*/
1093 /*    log_text("------------------");    */
1094     /* allocate memory */
1095     a = lit_mem_alloc (sizeof(java_chararray) + sizeof(u2)*(utflength-1)+10 );
1096     /* convert utf-string to u2-array */
1097     for (i=0; i<utflength; i++) a->data[i] = utf_nextu2(&utf_ptr);
1098
1099     return literalstring_u2(a, utflength, false);
1100 }
1101
1102
1103 /********************** function: literalstring_free **************************
1104
1105         removes a javastring from memory
1106
1107 ******************************************************************************/
1108
1109 void literalstring_free (java_objectheader* sobj)
1110 {
1111         java_lang_String *s = (java_lang_String*) sobj;
1112         java_chararray *a = s->value;
1113
1114         log_text("literalstring_free called");
1115
1116         /* dispose memory of java.lang.String object */
1117         LFREE (s, java_lang_String);
1118         /* dispose memory of java-characterarray */
1119         LFREE (a, sizeof(java_chararray) + sizeof(u2)*(a->header.size-1)); /* +10 ?? */
1120 }
1121
1122
1123
1124
1125 void copy_vftbl(vftbl **dest, vftbl *src)
1126 {
1127     *dest = src;
1128 #if 0
1129     /* XXX this kind of copying does not work (in the general
1130      * case). The interface tables would have to be copied, too. I
1131      * don't see why we should make a copy anyway. -Edwin
1132      */
1133         *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
1134         memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
1135         memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
1136 #endif
1137 }
1138
1139
1140 /******************************************************************************************
1141
1142         creates method signature (excluding return type) from array of
1143         class-objects representing the parameters of the method
1144
1145 *******************************************************************************************/
1146
1147
1148 utf *create_methodsig(java_objectarray* types, char *retType)
1149 {
1150     char *buffer;       /* buffer for building the desciptor */
1151     char *pos;          /* current position in buffer */
1152     utf *result;        /* the method signature */
1153     u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
1154     u4 i, j;
1155
1156     if (!types) return NULL;
1157
1158     /* determine required buffer-size */
1159     for (i = 0; i < types->header.size; i++) {
1160                 classinfo *c = (classinfo *) types->data[i];
1161                 buffer_size  = buffer_size + c->name->blength + 2;
1162     }
1163
1164     if (retType) buffer_size += strlen(retType);
1165
1166     /* allocate buffer */
1167     buffer = MNEW(u1, buffer_size);
1168     pos    = buffer;
1169
1170     /* method-desciptor starts with parenthesis */
1171     *pos++ = '(';
1172
1173     for (i = 0; i < types->header.size; i++) {
1174                 char ch;
1175
1176                 /* current argument */
1177             classinfo *c = (classinfo *) types->data[i];
1178
1179             /* current position in utf-text */
1180             char *utf_ptr = c->name->text;
1181
1182             /* determine type of argument */
1183             if ((ch = utf_nextu2(&utf_ptr)) == '[') {
1184                 /* arrayclass */
1185                 for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1186                                 *pos++ = *utf_ptr; /* copy text */
1187                         }
1188
1189             } else {
1190                         /* check for primitive types */
1191                         for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
1192                                 char *utf_pos   = utf_ptr - 1;
1193                                 char *primitive = primitivetype_table[j].wrapname;
1194
1195                                 /* compare text */
1196                                 while (utf_pos < utf_end(c->name)) {
1197                                         if (*utf_pos++ != *primitive++) goto nomatch;
1198                                 }
1199
1200                                 /* primitive type found */
1201                                 *pos++ = primitivetype_table[j].typesig;
1202                                 goto next_type;
1203
1204                         nomatch:
1205                         }
1206
1207                         /* no primitive type and no arrayclass, so must be object */
1208                         *pos++ = 'L';
1209
1210                         /* copy text */
1211                         for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1212                                 *pos++ = *utf_ptr;
1213                         }
1214
1215                         *pos++ = ';';
1216
1217                 next_type:
1218                 }
1219     }
1220
1221     *pos++ = ')';
1222
1223     if (retType) {
1224                 for (i = 0; i < strlen(retType); i++) {
1225                         *pos++ = retType[i];
1226                 }
1227     }
1228
1229     /* create utf-string */
1230     result = utf_new(buffer, (pos - buffer));
1231     MFREE(buffer, u1, buffer_size);
1232
1233     return result;
1234 }
1235
1236
1237 /******************************************************************************************
1238
1239         retrieve the next argument or returntype from a descriptor
1240         and return the corresponding class
1241
1242 *******************************************************************************************/
1243
1244 classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
1245 {
1246     classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
1247                                          (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
1248     if (!c)
1249         /* unknown type */
1250         panic("illegal descriptor");
1251
1252     if (skip) return NULL;
1253
1254     use_class_as_object(c);
1255     return c;
1256 }
1257
1258
1259 /******************************************************************************************
1260
1261         use the descriptor of a method to generate a java/lang/Class array
1262         which contains the classes of the parametertypes of the method
1263
1264 *******************************************************************************************/
1265
1266 java_objectarray* get_parametertypes(methodinfo *m)
1267 {
1268     utf  *descr    =  m->descriptor;    /* method-descriptor */
1269     char *utf_ptr  =  descr->text;      /* current position in utf-text */
1270     char *desc_end =  utf_end(descr);   /* points behind utf string     */
1271     java_objectarray* result;
1272     int parametercount = 0;
1273     int i;
1274
1275     /* skip '(' */
1276     utf_nextu2(&utf_ptr);
1277
1278     /* determine number of parameters */
1279     while ( *utf_ptr != ')' ) {
1280         get_type(&utf_ptr,desc_end,true);
1281         parametercount++;
1282     }
1283
1284     /* create class-array */
1285     result = builtin_anewarray(parametercount, class_java_lang_Class);
1286
1287     utf_ptr  =  descr->text;
1288     utf_nextu2(&utf_ptr);
1289
1290     /* get returntype classes */
1291     for (i = 0; i < parametercount; i++)
1292             result->data[i] = (java_objectheader *) get_type(&utf_ptr,desc_end, false);
1293
1294     return result;
1295 }
1296
1297
1298
1299
1300
1301 /******************************************************************************************
1302
1303         get the exceptions which can be thrown by a method
1304
1305 *******************************************************************************************/
1306
1307 java_objectarray* get_exceptiontypes(methodinfo *m)
1308 {
1309 }
1310
1311
1312
1313
1314
1315 /******************************************************************************************
1316
1317         get the returntype class of a method
1318
1319 *******************************************************************************************/
1320
1321 classinfo *get_returntype(methodinfo *m)
1322 {
1323         char *utf_ptr;   /* current position in utf-text */
1324         char *desc_end;  /* points behind utf string     */
1325         utf *desc = m->descriptor; /* method-descriptor  */
1326
1327         utf_ptr  = desc->text;
1328         desc_end = utf_end(desc);
1329
1330         /* ignore parametertypes */
1331         while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
1332                 /* skip */ ;
1333
1334         return get_type(&utf_ptr,desc_end, false);
1335 }
1336
1337
1338 /*****************************************************************************/
1339 /*****************************************************************************/
1340
1341
1342 /*--------------------------------------------------------*/
1343 void printNativeCall(nativeCall nc) {
1344   int i,j;
1345
1346   printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
1347   for (i=0; i<nc.methCnt; i++) {
1348       printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
1349
1350     for (j=0; j<nc.callCnt[i]; j++) {
1351         printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
1352         nc.methods[i].methodCalls[j].classname,
1353         nc.methods[i].methodCalls[j].methodname,
1354         nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1355       }
1356     }
1357   printf("-+++++--------------------\n");fflush(stdout);
1358 }
1359
1360 /*--------------------------------------------------------*/
1361 void printCompNativeCall(nativeCompCall nc) {
1362   int i,j;
1363   printf("printCompNativeCall BEGIN\n");fflush(stdout);
1364   printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
1365   utf_display(nc.classname); fflush(stdout);
1366
1367   for (i=0; i<nc.methCnt; i++) {
1368     printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
1369     utf_display(nc.methods[i].methodname); fflush(stdout);
1370     utf_display(nc.methods[i].descriptor);fflush(stdout);
1371     printf("\n");fflush(stdout);
1372
1373     for (j=0; j<nc.callCnt[i]; j++) {
1374       printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
1375         utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
1376         utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
1377         utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1378         printf("\n");fflush(stdout);
1379       }
1380     }
1381 printf("---------------------\n");fflush(stdout);
1382 }
1383
1384
1385 /*--------------------------------------------------------*/
1386 classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
1387 {
1388     int i = 0;
1389     int j = 0;
1390     int cnt = 0;
1391     classMeth mc;
1392     mc.i_class = i;
1393     mc.j_method = j;
1394     mc.methCnt = cnt;
1395
1396     return mc;
1397 }
1398
1399 /*--------------------------------------------------------*/
1400 nativeCall* findNativeClassCalls(char *aclassname ) {
1401 int i;
1402
1403 for (i=0;i<NATIVECALLSSIZE; i++) {
1404    /* convert table to utf later to speed up search */
1405    if (strcmp(nativeCalls[i].classname, aclassname) == 0)
1406         return &nativeCalls[i];
1407    }
1408
1409 return NULL;
1410 }
1411 /*--------------------------------------------------------*/
1412 /*--------------------------------------------------------*/
1413 void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
1414   int i,j;
1415
1416
1417   ncc->classname = utf_new_char(nc.classname);
1418   ncc->methCnt = nc.methCnt;
1419
1420   for (i=0; i<nc.methCnt; i++) {
1421     ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
1422     ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
1423     ncc->callCnt[i] = nc.callCnt[i];
1424
1425     for (j=0; j<nc.callCnt[i]; j++) {
1426
1427         ncc->methods[i].methodCalls[j].classname  = utf_new_char(nc.methods[i].methodCalls[j].classname);
1428
1429         if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
1430           ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
1431           ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
1432           }
1433         else {
1434           ncc->methods[i].methodCalls[j].methodname = NULL;
1435           ncc->methods[i].methodCalls[j].descriptor = NULL;
1436           }
1437       }
1438     }
1439 }
1440
1441
1442
1443 /*--------------------------------------------------------*/
1444
1445 bool natcall2utf(bool natcallcompdone) {
1446 int i;
1447
1448 if (natcallcompdone)
1449         return true;
1450
1451 for (i=0;i<NATIVECALLSSIZE; i++) {
1452    utfNativeCall  (nativeCalls[i], &nativeCompCalls[i]);
1453    }
1454
1455 return true;
1456 }
1457 /*--------------------------------------------------------*/
1458
1459
1460 /*
1461  * These are local overrides for various environment variables in Emacs.
1462  * Please do not remove this and leave it at the end of the file, where
1463  * Emacs will automagically detect them.
1464  * ---------------------------------------------------------------------
1465  * Local variables:
1466  * mode: c
1467  * indent-tabs-mode: t
1468  * c-basic-offset: 4
1469  * tab-width: 4
1470  * End:
1471  */