src/cfile/cfilesystem.cpp

   1 /*
   2  * Copyright (C) Volition, Inc. 1999.  All rights reserved.
   3  *
   4  * All source code herein is the property of Volition, Inc. You may not sell
   5  * or otherwise commercially exploit the source or things you created based on
   6  * the source.
   7  */
   8
   9 /*
  10  * $Logfile: /Freespace2/code/CFile/CfileSystem.cpp $
  11  * $Revision$
  12  * $Date$
  13  * $Author$
  14  *
  15  * Functions to keep track of and find files that can exist
  16  * on the harddrive, cd-rom, or in a pack file on either of those.
  17  * This keeps a list of all the files in packfiles or on CD-rom
  18  * and when you need a file you call one function which then searches
  19  * all those locations, inherently enforcing precedence orders.
  20  *
  21  * $Log$
  22  * Revision 1.11  2004/07/04 11:27:29  taylor
  23  * cleanup CFILE code a little, warning fixes, remove redundant dir checks, amd64 support
  24  *
  25  * Revision 1.10  2004/06/11 00:29:22  tigital
  26  * byte-swapping changes for bigendian systems
  27  *
  28  * Revision 1.9  2003/05/27 03:03:11  taylor
  29  * fix second root (gamedir) searching
  30  *
  31  * Revision 1.8  2003/02/20 17:41:07  theoddone33
  32  * Userdir patch from Taylor Richards
  33  *
  34  * Revision 1.7  2002/06/22 23:57:39  relnev
  35  * remove writable strings.
  36  *
  37  * fix compile for intel compiler.
  38  *
  39  * Revision 1.6  2002/06/09 04:41:15  relnev
  40  * added copyright header
  41  *
  42  * Revision 1.5  2002/06/05 04:03:32  relnev
  43  * finished cfilesystem.
  44  *
  45  * removed some old code.
  46  *
  47  * fixed mouse save off-by-one.
  48  *
  49  * sound cleanups.
  50  *
  51  * Revision 1.4  2002/05/28 17:26:57  theoddone33
  52  * Fill in some timer and palette setting stubs.  Still no display
  53  *
  54  * Revision 1.3  2002/05/28 06:45:38  theoddone33
  55  * Cleanup some stuff
  56  *
  57  * Revision 1.2  2002/05/28 06:28:20  theoddone33
  58  * Filesystem mods, actually reads some data files now
  59  *
  60  * Revision 1.1.1.1  2002/05/03 03:28:08  root
  61  * Initial import.
  62  *
  63  *
  64  * 6     9/08/99 10:01p Dave
  65  * Make sure game won't run in a drive's root directory. Make sure
  66  * standalone routes suqad war messages properly to the host.
  67  *
  68  * 5     9/03/99 1:31a Dave
  69  * CD checking by act. Added support to play 2 cutscenes in a row
  70  * seamlessly. Fixed super low level cfile bug related to files in the
  71  * root directory of a CD. Added cheat code to set campaign mission # in
  72  * main hall.
  73  *
  74  * 4     2/22/99 10:31p Andsager
  75  * Get rid of unneeded includes.
  76  *
  77  * 3     10/13/98 9:19a Andsager
  78  * Add localization support to cfile.  Optional parameter with cfopen that
  79  * looks for localized files.
  80  *
  81  * 2     10/07/98 10:52a Dave
  82  * Initial checkin.
  83  *
  84  * 1     10/07/98 10:48a Dave
  85  *
  86  * 14    8/31/98 2:06p Dave
  87  * Make cfile sort the ordering or vp files. Added support/checks for
  88  * recognizing "mission disk" players.
  89  *
  90  * 13    6/23/98 4:18p Hoffoss
  91  * Fixed some bugs with AC release build.
  92  *
  93  * 12    5/20/98 10:46p John
  94  * Added code that doesn't include duplicate filenames in any file list
  95  * functions.
  96  *
  97  * 11    5/14/98 2:14p Lawrance2
  98  * Use filespec filtering for packfiles
  99  *
 100  * 10    5/03/98 11:53a John
 101  * Fixed filename case mangling.
 102  *
 103  * 9     5/02/98 11:06p Allender
 104  * correctly deal with pack pathnames
 105  *
 106  * 8     5/01/98 11:41a Allender
 107  * Fixed bug with mission saving in Fred.
 108  *
 109  * 7     5/01/98 10:21a John
 110  * Added code to find all pack files in all trees.   Added code to create
 111  * any directories that we write to.
 112  *
 113  * 6     4/30/98 10:21p John
 114  * Added code to cleanup cfilesystem
 115  *
 116  * 5     4/30/98 10:18p John
 117  * added source safe header
 118  *
 119  * $NoKeywords: $
 120  */
 121
 122 #include <stdlib.h>
 123 #include <string.h>
 124 #include <stdio.h>
 125 #include <errno.h>
 126 #ifndef PLAT_UNIX
 127 #include <io.h>
 128 #include <direct.h>
 129 #include <windows.h>
 130 #include <winbase.h>            /* needed for memory mapping of file functions */
 131 #else
 132 #include <sys/types.h>
 133 #include <dirent.h>
 134 #include <fnmatch.h>
 135 #include <sys/stat.h>
 136 #include <unistd.h>
 137 #endif
 138
 139 #include "pstypes.h"
 140 //#include "outwnd.h"
 141 //#include "vecmat.h"
 142 //#include "timer.h"
 143 #include "cfile.h"
 144 #include "cfilesystem.h"
 145 #include "localize.h"
 146
 147
 148 #define CF_ROOTTYPE_PATH 0
 149 #define CF_ROOTTYPE_PACK 1
 150
 151 //  Created by:
 152 //    specifying hard drive tree
 153 //    searching for pack files on hard drive            // Found by searching all known paths
 154 //    specifying cd-rom tree
 155 //    searching for pack files on CD-rom tree
 156 typedef struct cf_root {
 157         char                            path[CF_MAX_PATHNAME_LENGTH];           // Contains something like c:\projects\freespace or c:\projects\freespace\freespace.vp
 158         int                             roottype;                                                               // CF_ROOTTYPE_PATH  = Path, CF_ROOTTYPE_PACK =Pack file
 159 } cf_root;
 160
 161 // convenient type for sorting (see cf_build_pack_list())
 162 typedef struct cf_root_sort {
 163         char                            path[CF_MAX_PATHNAME_LENGTH];
 164         int                             roottype;
 165         int                             cf_type;
 166 } cf_root_sort;
 167
 168 #define CF_NUM_ROOTS_PER_BLOCK   32
 169 #define CF_MAX_ROOT_BLOCKS                      256                             // Can store 32*256 = 8192 Roots
 170 #define CF_MAX_ROOTS                                    (CF_NUM_ROOTS_PER_BLOCK * CF_MAX_ROOT_BLOCKS)
 171
 172 typedef struct cf_root_block {
 173         cf_root                 roots[CF_NUM_ROOTS_PER_BLOCK];
 174 } cf_root_block;
 175
 176 static int Num_roots = 0;
 177 static cf_root_block  *Root_blocks[CF_MAX_ROOT_BLOCKS];
 178
 179
 180 // Created by searching all roots in order.   This means Files is then sorted by precedence.
 181 typedef struct cf_file {
 182         char            name_ext[CF_MAX_FILENAME_LENGTH];               // Filename and extension
 183         int             root_index;                                                                             // Where in Roots this is located
 184         int             pathtype_index;                                                         // Where in Paths this is located
 185         time_t  write_time;                                                                             // When it was last written
 186         int             size;                                                                                           // How big it is in bytes
 187         int             pack_offset;                                                                    // For pack files, where it is at.   0 if not in a pack file.  This can be used to tell if in a pack file.
 188 } cf_file;
 189
 190 #define CF_NUM_FILES_PER_BLOCK   256
 191 #define CF_MAX_FILE_BLOCKS                      128                                             // Can store 256*128 = 32768 files
 192
 193 typedef struct cf_file_block {
 194         cf_file                                         files[CF_NUM_FILES_PER_BLOCK];
 195 } cf_file_block;
 196
 197 static int Num_files = 0;
 198 static cf_file_block  *File_blocks[CF_MAX_FILE_BLOCKS];
 199
 200
 201 // Return a pointer to to file 'index'.
 202 cf_file *cf_get_file(int index)
 203 {
 204         int block = index / CF_NUM_FILES_PER_BLOCK;
 205         int offset = index % CF_NUM_FILES_PER_BLOCK;
 206
 207         return &File_blocks[block]->files[offset];
 208 }
 209
 210 // Create a new file and return a pointer to it.
 211 cf_file *cf_create_file()
 212 {
 213         int block = Num_files / CF_NUM_FILES_PER_BLOCK;
 214         int offset = Num_files % CF_NUM_FILES_PER_BLOCK;
 215
 216         if ( File_blocks[block] == NULL )       {
 217                 File_blocks[block] = (cf_file_block *)malloc( sizeof(cf_file_block) );
 218                 SDL_assert( File_blocks[block] != NULL);
 219         }
 220
 221         Num_files++;
 222
 223         return &File_blocks[block]->files[offset];
 224 }
 225
 226 extern int cfile_inited;
 227
 228 // Create a new root and return a pointer to it.  The structure is assumed unitialized.
 229 cf_root *cf_get_root(int n)
 230 {
 231         int block = n / CF_NUM_ROOTS_PER_BLOCK;
 232         int offset = n % CF_NUM_ROOTS_PER_BLOCK;
 233
 234         if (!cfile_inited)
 235                 return NULL;
 236
 237         return &Root_blocks[block]->roots[offset];
 238 }
 239
 240
 241 // Create a new root and return a pointer to it.  The structure is assumed unitialized.
 242 cf_root *cf_create_root()
 243 {
 244         int block = Num_roots / CF_NUM_ROOTS_PER_BLOCK;
 245         int offset = Num_roots % CF_NUM_ROOTS_PER_BLOCK;
 246
 247         if ( Root_blocks[block] == NULL )       {
 248                 Root_blocks[block] = (cf_root_block *)malloc( sizeof(cf_root_block) );
 249                 SDL_assert(Root_blocks[block] != NULL);
 250         }
 251
 252         Num_roots++;
 253
 254         return &Root_blocks[block]->roots[offset];
 255 }
 256
 257 // return the # of packfiles which exist
 258 int cf_get_packfile_count(cf_root *root)
 259 {
 260         char filespec[MAX_PATH_LEN];
 261         int i;
 262         int packfile_count;
 263
 264         // count up how many packfiles we're gonna have
 265         packfile_count = 0;
 266         for (i=CF_TYPE_ROOT; i<CF_MAX_PATH_TYPES; i++ ) {
 267                 SDL_strlcpy( filespec, root->path, sizeof(filespec) );
 268
 269                 if(strlen(Pathtypes[i].path)){
 270                         SDL_strlcat( filespec, Pathtypes[i].path, sizeof(filespec) );
 271                         SDL_strlcat( filespec, DIR_SEPARATOR_STR, sizeof(filespec) );
 272                 }
 273
 274 #ifdef PLAT_UNIX
 275                 DIR *dirp;
 276                 struct dirent *dir;
 277
 278                 dirp = opendir (filespec);
 279                 if ( dirp ) {
 280                         while ((dir = readdir (dirp)) != NULL)
 281                         {
 282                                 if (!fnmatch ("*.vp", dir->d_name, 0))
 283                                         packfile_count++;
 284                         }
 285                         closedir(dirp);
 286                 }
 287 #else
 288                 SDL_strlcat( filespec, "*.vp", sizeof(filespec) );
 289
 290                 int find_handle;
 291                 _finddata_t find;
 292
 293                 find_handle = _findfirst( filespec, &find );
 294
 295                 if (find_handle != -1) {
 296                         do {
 297                                 if (!(find.attrib & _A_SUBDIR)) {
 298                                         packfile_count++;
 299                                 }
 300
 301                         } while (!_findnext(find_handle, &find));
 302
 303                         _findclose( find_handle );
 304                 }
 305 #endif
 306         }
 307
 308         return packfile_count;
 309 }
 310
 311 // packfile sort function
 312 int cf_packfile_sort_func(const void *elem1, const void *elem2)
 313 {
 314         cf_root_sort *r1, *r2;
 315         r1 = (cf_root_sort*)elem1;
 316         r2 = (cf_root_sort*)elem2;
 317
 318         // if the 2 directory types are the same, do a string compare
 319         if(r1->cf_type == r2->cf_type){
 320                 return SDL_strcasecmp(r1->path, r2->path);
 321         }
 322
 323         // otherwise return them in order of CF_TYPE_* precedence
 324         return (r1->cf_type < r2->cf_type) ? -1 : 1;
 325 }
 326
 327 // Go through a root and look for pack files
 328 void cf_build_pack_list( cf_root *root )
 329 {
 330         char filespec[MAX_PATH_LEN];
 331         int i;
 332         cf_root_sort *temp_roots_sort, *rptr_sort;
 333         int temp_root_count, root_index;
 334
 335         // determine how many packfiles there are
 336         temp_root_count = cf_get_packfile_count(root);
 337         if(temp_root_count <= 0){
 338                 return;
 339         }
 340
 341         // allocate a temporary array of temporary roots so we can easily sort them
 342         temp_roots_sort = (cf_root_sort*)malloc(sizeof(cf_root_sort) * temp_root_count);
 343         if(temp_roots_sort == NULL){
 344                 Int3();
 345                 return;
 346         }
 347
 348         // now just setup all the root info
 349         root_index = 0;
 350         for (i=CF_TYPE_ROOT; i<CF_MAX_PATH_TYPES; i++ ) {
 351                 SDL_strlcpy( filespec, root->path, sizeof(filespec) );
 352
 353                 if(strlen(Pathtypes[i].path)){
 354                         SDL_strlcat( filespec, Pathtypes[i].path, sizeof(filespec) );
 355                         SDL_strlcat( filespec, DIR_SEPARATOR_STR, sizeof(filespec) );
 356                 }
 357
 358 #ifdef PLAT_UNIX
 359                 DIR *dirp;
 360                 struct dirent *dir;
 361
 362                 dirp = opendir (filespec);
 363                 if ( dirp ) {
 364                         while ((dir = readdir (dirp)) != NULL)
 365                         {
 366                                 if (!fnmatch ("*.vp", dir->d_name, 0))
 367                                 {
 368                                         SDL_assert(root_index < temp_root_count);
 369
 370                                         char fn[MAX_PATH_LEN];
 371                                         SDL_snprintf(fn, sizeof(fn), "%s/%s", filespec, dir->d_name);
 372
 373                                         struct stat buf;
 374                                         if (stat(fn, &buf) == -1) {
 375                                                 continue;
 376                                         }
 377
 378                                         if (!S_ISREG(buf.st_mode)) {
 379                                                 continue;
 380                                         }
 381
 382                                         // get a temp pointer
 383                                         rptr_sort = &temp_roots_sort[root_index++];
 384
 385                                         // fill in all the proper info
 386                                         SDL_strlcpy(rptr_sort->path, root->path, sizeof(rptr_sort->path));
 387
 388                                         if(strlen(Pathtypes[i].path)){
 389                                                 SDL_strlcat(rptr_sort->path, Pathtypes[i].path, sizeof(rptr_sort->path));
 390                                                 SDL_strlcat(rptr_sort->path, "/", sizeof(rptr_sort->path));
 391                                         }
 392
 393                                         SDL_strlcat(rptr_sort->path, dir->d_name, sizeof(rptr_sort->path));
 394                                         rptr_sort->roottype = CF_ROOTTYPE_PACK;
 395                                         rptr_sort->cf_type = i;
 396                                 }
 397                         }
 398                         closedir(dirp);
 399                 }
 400 #else
 401                 SDL_strlcat( filespec, "*.vp", sizeof(filespec) );
 402
 403                 int find_handle;
 404                 _finddata_t find;
 405
 406                 find_handle = _findfirst( filespec, &find );
 407
 408                 if (find_handle != -1) {
 409                         do {
 410                                 // add the new item
 411                                 if (!(find.attrib & _A_SUBDIR)) {
 412                                         SDL_assert(root_index < temp_root_count);
 413
 414                                         // get a temp pointer
 415                                         rptr_sort = &temp_roots_sort[root_index++];
 416
 417                                         // fill in all the proper info
 418                                         SDL_strlcpy(rptr_sort->path, root->path, sizeof(rptr_sort->path));
 419
 420                                         if(strlen(Pathtypes[i].path)){
 421                                                 SDL_strlcat(rptr_sort->path, Pathtypes[i].path, sizeof(rptr_sort->path) );
 422                                                 SDL_strlcat(rptr_sort->path, "\\", sizeof(rptr_sort->path));
 423                                         }
 424
 425                                         SDL_strlcat(rptr_sort->path, find.name, sizeof(rptr_sort->path) );
 426                                         rptr_sort->roottype = CF_ROOTTYPE_PACK;
 427                                         rptr_sort->cf_type = i;
 428                                 }
 429
 430                         } while (!_findnext(find_handle, &find));
 431
 432                         _findclose( find_handle );
 433                 }
 434 #endif
 435         }
 436
 437         // these should always be the same
 438         SDL_assert(root_index == temp_root_count);
 439
 440         // sort tht roots
 441         qsort(temp_roots_sort,  temp_root_count, sizeof(cf_root_sort), cf_packfile_sort_func);
 442
 443         // now insert them all into the real root list properly
 444         cf_root *new_root;
 445         for(i=0; i<temp_root_count; i++){
 446                 new_root = cf_create_root();
 447                 SDL_strlcpy( new_root->path, root->path, sizeof(new_root->path) );
 448
 449                 // mwa -- 4/2/98 put in the next 2 lines because the path name needs to be there
 450                 // to find the files.
 451                 SDL_strlcpy(new_root->path, temp_roots_sort[i].path, sizeof(new_root->path));
 452                 new_root->roottype = CF_ROOTTYPE_PACK;
 453         }
 454
 455         // free up the temp list
 456         free(temp_roots_sort);
 457 }
 458
 459
 460 void cf_build_root_list(const char *extras_dir)
 461 {
 462         Num_roots = 0;
 463
 464         cf_root *root;
 465
 466         // ================================================================
 467         // have user's writable directory as default for loading and saving files
 468         root = cf_create_root();
 469         SDL_strlcpy( root->path, Cfile_user_dir, sizeof(root->path) );
 470
 471         // do we already have a slash? as in the case of a root directory install
 472         if(strlen(root->path) && (root->path[strlen(root->path)-1] != DIR_SEPARATOR_CHAR)){
 473                 SDL_strlcat(root->path, DIR_SEPARATOR_STR, sizeof(root->path));         // put trailing backslash on for easier path construction
 474         }
 475         root->roottype = CF_ROOTTYPE_PATH;
 476
 477         //======================================================
 478         // then check any VP files under the directory.
 479         cf_build_pack_list(root);
 480
 481         //======================================================
 482         // Next, use the executable's directory for game data
 483         root = cf_create_root();
 484         SDL_strlcpy( root->path, Cfile_root_dir, sizeof(root->path) );
 485
 486         // do we already have a slash? as in the case of a root directory install
 487         if(strlen(root->path) && (root->path[strlen(root->path)-1] != DIR_SEPARATOR_CHAR)){
 488                 SDL_strlcat(root->path, DIR_SEPARATOR_STR, sizeof(root->path));         // put trailing backslash on for easier path construction
 489         }
 490         root->roottype = CF_ROOTTYPE_PATH;
 491
 492         //======================================================
 493         // then check any VP files under the current directory.
 494         cf_build_pack_list(root);
 495
 496
 497         //======================================================
 498         // Check the real CD if one...
 499         if ( extras_dir && strlen(extras_dir) ) {
 500                 root = cf_create_root();
 501                 SDL_strlcpy( root->path, extras_dir, sizeof(root->path) );
 502                 root->roottype = CF_ROOTTYPE_PATH;
 503
 504                 //======================================================
 505                 // Next, check any VP files in the CD-ROM directory.
 506                 cf_build_pack_list(root);
 507         }
 508 }
 509
 510 // Given a lower case list of file extensions
 511 // separated by spaces, return zero if ext is
 512 // not in the list.
 513 int is_ext_in_list( const char *ext_list, char *ext )
 514 {
 515         char tmp_ext[128];
 516
 517         SDL_strlcpy( tmp_ext, ext, sizeof(tmp_ext) );
 518         SDL_strlwr(tmp_ext);
 519         if ( strstr(ext_list, tmp_ext ))        {
 520                 return 1;
 521         }
 522
 523         return 0;
 524 }
 525
 526 void cf_search_root_path(int root_index)
 527 {
 528         int i;
 529
 530         cf_root *root = cf_get_root(root_index);
 531
 532         mprintf(( "Searching root '%s'\n", root->path ));
 533
 534         char search_path[CF_MAX_PATHNAME_LENGTH];
 535
 536         for (i=CF_TYPE_ROOT; i<CF_MAX_PATH_TYPES; i++ ) {
 537
 538                 SDL_strlcpy( search_path, root->path, sizeof(search_path) );
 539
 540                 if(strlen(Pathtypes[i].path)){
 541                         SDL_strlcat( search_path, Pathtypes[i].path, sizeof(search_path) );
 542                         SDL_strlcat( search_path, DIR_SEPARATOR_STR, sizeof(search_path) );
 543                 }
 544
 545 #ifdef PLAT_UNIX
 546                 DIR *dirp;
 547                 struct dirent *dir;
 548
 549                 // only get pilots from the primary root as there could be nasty
 550                 // permission issues otherwise
 551                 if ( (root_index > 0) && ((Pathtypes[i].index == CF_TYPE_SINGLE_PLAYERS)
 552                                         || (Pathtypes[i].index == CF_TYPE_MULTI_PLAYERS)) ) {
 553                         break;
 554                 }
 555
 556                 dirp = opendir (search_path);
 557                 if ( dirp ) {
 558                         while ((dir = readdir (dirp)) != NULL)
 559                         {
 560                                 if (!fnmatch ("*.*", dir->d_name, 0))
 561                                 {
 562                                         char fn[MAX_PATH_LEN];
 563                                         SDL_snprintf(fn, MAX_PATH_LEN, "%s/%s", search_path, dir->d_name);
 564
 565                                         struct stat buf;
 566                                         if (stat(fn, &buf) == -1) {
 567                                                 continue;
 568                                         }
 569
 570                                         if (!S_ISREG(buf.st_mode)) {
 571                                                 continue;
 572                                         }
 573
 574                                         char *ext = SDL_strchr( dir->d_name, '.' );
 575                                         if ( ext )      {
 576                                                 if ( is_ext_in_list( Pathtypes[i].extensions, ext ) )   {
 577                                                         // Found a file!!!!
 578                                                         cf_file *file = cf_create_file();
 579
 580                                                         SDL_strlcpy( file->name_ext, dir->d_name, sizeof(file->name_ext) );
 581                                                         file->root_index = root_index;
 582                                                         file->pathtype_index = i;
 583
 584
 585                                                         file->write_time = buf.st_mtime;
 586                                                         file->size = buf.st_size;
 587
 588                                                         file->pack_offset = 0;                  // Mark as a non-packed file
 589
 590                                                         //mprintf(( "Found file '%s'\n", file->name_ext ));
 591                                                 }
 592                                         }
 593                                 }
 594                         }
 595                         closedir(dirp);
 596                 }
 597 #else
 598                 SDL_strlcat( search_path, "*.*", sizeof(search_path) );
 599
 600                 int find_handle;
 601                 _finddata_t find;
 602
 603                 find_handle = _findfirst( search_path, &find );
 604
 605                 if (find_handle != -1) {
 606                         do {
 607                                 if (!(find.attrib & _A_SUBDIR)) {
 608
 609                                         char *ext = SDL_strchr( find.name, '.' );
 610                                         if ( ext )      {
 611                                                 if ( is_ext_in_list( Pathtypes[i].extensions, ext ) )   {
 612                                                         // Found a file!!!!
 613                                                         cf_file *file = cf_create_file();
 614
 615                                                         SDL_strlcpy( file->name_ext, find.name, sizeof(file->name_ext) );
 616                                                         file->root_index = root_index;
 617                                                         file->pathtype_index = i;
 618                                                         file->write_time = find.time_write;
 619                                                         file->size = find.size;
 620                                                         file->pack_offset = 0;                  // Mark as a non-packed file
 621
 622                                                         //mprintf(( "Found file '%s'\n", file->name_ext ));
 623
 624                                                 }
 625                                         }
 626
 627                                 }
 628
 629                         } while (!_findnext(find_handle, &find));
 630
 631                         _findclose( find_handle );
 632                 }
 633 #endif
 634
 635         }
 636 }
 637
 638
 639 typedef struct VP_FILE_HEADER {
 640         char id[4];
 641         int version;
 642         int index_offset;
 643         int num_files;
 644 } VP_FILE_HEADER;
 645
 646 typedef struct VP_FILE {
 647         int     offset;
 648         int     size;
 649         char    filename[32];
 650         fs_time_t write_time;
 651 } VP_FILE;
 652
 653 void cf_search_root_pack(int root_index)
 654 {
 655         int i;
 656
 657         cf_root *root = cf_get_root(root_index);
 658
 659         //mprintf(( "Searching root pack '%s'\n", root->path ));
 660
 661         // Open data
 662
 663         FILE *fp = fopen( root->path, "rb" );
 664         // Read the file header
 665         if (!fp) {
 666                 return;
 667         }
 668
 669         VP_FILE_HEADER VP_header;
 670
 671         SDL_assert( sizeof(VP_header) == 16 );
 672         fread(&VP_header, 1, sizeof(VP_header), fp);
 673
 674     VP_header.version = INTEL_INT( VP_header.version);
 675     VP_header.index_offset = INTEL_INT( VP_header.index_offset);
 676     VP_header.num_files = INTEL_INT( VP_header.num_files);
 677
 678         // Read index info
 679         fseek(fp, VP_header.index_offset, SEEK_SET);
 680
 681         char search_path[CF_MAX_PATHNAME_LENGTH];
 682
 683         SDL_strlcpy( search_path, "", sizeof(search_path) );
 684
 685         // Go through all the files
 686         for (i=0; i<VP_header.num_files; i++ )  {
 687                 VP_FILE find;
 688
 689                 fread( &find, sizeof(VP_FILE), 1, fp );
 690
 691         find.offset = INTEL_INT( find.offset );
 692         find.size = INTEL_INT( find.size );
 693                 find.write_time = INTEL_INT(find.write_time);
 694
 695                 if ( find.size == 0 )   {
 696                         if ( !SDL_strcasecmp( find.filename, ".." ))    {
 697                                 int l = strlen(search_path);
 698                                 char *p = &search_path[l-1];
 699                                 while( (p > search_path) && (*p != DIR_SEPARATOR_CHAR) )        {
 700                                         p--;
 701                                 }
 702                                 *p = 0;
 703                         } else {
 704                                 if ( strlen(search_path)        )       {
 705                                         SDL_strlcat( search_path,       DIR_SEPARATOR_STR, sizeof(search_path) );
 706                                 }
 707                                 SDL_strlcat( search_path, find.filename, sizeof(search_path) );
 708                         }
 709
 710                         //mprintf(( "Current dir = '%s'\n", search_path ));
 711                 } else {
 712
 713                         int j;
 714                         for (j=CF_TYPE_ROOT; j<CF_MAX_PATH_TYPES; j++ ) {
 715
 716                                 if ( !SDL_strcasecmp( search_path, Pathtypes[j].path )) {
 717
 718                                         char *ext = SDL_strchr( find.filename, '.' );
 719                                         if ( ext )      {
 720                                                 if ( is_ext_in_list( Pathtypes[j].extensions, ext ) )   {
 721                                                         // Found a file!!!!
 722                                                         cf_file *file = cf_create_file();
 723
 724                                                         SDL_strlcpy( file->name_ext, find.filename, sizeof(file->name_ext) );
 725                                                         file->root_index = root_index;
 726                                                         file->pathtype_index = j;
 727                                                         file->write_time = find.write_time;
 728                                                         file->size = find.size;
 729                                                         file->pack_offset = find.offset;                        // Mark as a non-packed file
 730
 731                                                         //mprintf(( "Found pack file '%s'\n", file->name_ext ));
 732                                                 }
 733                                         }
 734
 735
 736                                 }
 737                         }
 738
 739                 }
 740         }
 741         fclose(fp);
 742 }
 743
 744
 745 void cf_build_file_list()
 746 {
 747         int i;
 748
 749         Num_files = 0;
 750
 751         // For each root, find all files...
 752         for (i=1; i<Num_roots; i++ )    {
 753                 cf_root *root = cf_get_root(i);
 754                 if ( root->roottype == CF_ROOTTYPE_PATH )       {
 755                         cf_search_root_path(i);
 756                 } else if ( root->roottype == CF_ROOTTYPE_PACK )        {
 757                         cf_search_root_pack(i);
 758                 }
 759         }
 760
 761 }
 762
 763
 764 void cf_build_secondary_filelist(const char *extras_dir)
 765 {
 766         int i;
 767
 768         // Assume no files
 769         Num_roots = 0;
 770         Num_files = 0;
 771
 772         // Init the path types
 773         for (i=0; i<CF_MAX_PATH_TYPES; i++ )    {
 774                 SDL_assert( Pathtypes[i].index == i );
 775 #if 0 /* they are already lowercased -- SBF */
 776                 if ( Pathtypes[i].extensions )  {
 777                         SDL_strlwr(Pathtypes[i].extensions);
 778                 }
 779 #endif
 780         }
 781
 782         // Init the root blocks
 783         for (i=0; i<CF_MAX_ROOT_BLOCKS; i++ )   {
 784                 Root_blocks[i] = NULL;
 785         }
 786
 787         // Init the file blocks
 788         for (i=0; i<CF_MAX_FILE_BLOCKS; i++ )   {
 789                 File_blocks[i] = NULL;
 790         }
 791
 792         mprintf(( "Building file index...\n" ));
 793
 794         // build the list of searchable roots
 795         cf_build_root_list(extras_dir);
 796
 797         // build the list of files themselves
 798         cf_build_file_list();
 799
 800         mprintf(( "Found %d roots and %d files.\n", Num_roots, Num_files ));
 801 }
 802
 803 void cf_free_secondary_filelist()
 804 {
 805         int i;
 806
 807         // Free the root blocks
 808         for (i=0; i<CF_MAX_ROOT_BLOCKS; i++ )   {
 809                 if ( Root_blocks[i] )   {
 810                         free( Root_blocks[i] );
 811                         Root_blocks[i] = NULL;
 812                 }
 813         }
 814         Num_roots = 0;
 815
 816         // Init the file blocks
 817         for (i=0; i<CF_MAX_FILE_BLOCKS; i++ )   {
 818                 if ( File_blocks[i] )   {
 819                         free( File_blocks[i] );
 820                         File_blocks[i] = NULL;
 821                 }
 822         }
 823         Num_files = 0;
 824 }
 825
 826 // Searches for a file.   Follows all rules and precedence and searches
 827 // CD's and pack files.
 828 // Input:  filespace   - Filename & extension
 829 //         pathtype    - See CF_TYPE_ defines in CFILE.H
 830 // Output: pack_filename - Absolute path and filename of this file.   Could be a packfile or the actual file.
 831 //         size        - File size
 832 //         offset      - Offset into pack file.  0 if not a packfile.
 833 // Returns: If not found returns 0.
 834 int cf_find_file_location( const char *filespec, int pathtype, char *pack_filename, int *size, int *offset, bool localize )
 835 {
 836         int i;
 837
 838         SDL_assert(filespec && strlen(filespec));
 839
 840         // see if we have something other than just a filename
 841         // our current rules say that any file that specifies a direct
 842         // path will try to be opened on that path.  If that open
 843         // fails, then we will open the file based on the extension
 844         // of the file
 845
 846 #ifdef PLAT_UNIX
 847         const char *toks = "/";
 848 #else
 849         const char *toks = "/\\:";
 850 #endif
 851
 852         // NOTE: full path should also include localization, if so desired
 853         if ( strpbrk(filespec, toks) ) {                // do we have a full path already?
 854                 FILE *fp = fopen(filespec, "rb" );
 855                 if (fp) {
 856                         if ( size ) *size = filelength(fileno(fp));
 857                         if ( offset ) *offset = 0;
 858                         if ( pack_filename ) {
 859                                 SDL_strlcpy( pack_filename, filespec, MAX_PATH_LEN );
 860                         }
 861                         fclose(fp);
 862                         return 1;
 863                 }
 864
 865                 return 0;               // If they give a full path, fail if not found.
 866         }
 867
 868         // Search the hard drive for files first.
 869         int num_search_dirs = 0;
 870         int search_order[CF_MAX_PATH_TYPES];
 871
 872         if ( CF_TYPE_SPECIFIED(pathtype) )      {
 873                 search_order[num_search_dirs++] = pathtype;
 874         }
 875
 876         for (i=CF_TYPE_ROOT; i<CF_MAX_PATH_TYPES; i++)  {
 877                 if ( i != pathtype )    {
 878                         search_order[num_search_dirs++] = i;
 879                 }
 880         }
 881
 882         for (i=0; i<num_search_dirs; i++ )      {
 883                 char longname[MAX_PATH_LEN];
 884
 885                 cf_create_default_path_string( longname, search_order[i], filespec, localize );
 886
 887                 FILE *fp = fopen(longname, "rb" );
 888                 if (fp) {
 889                         if ( size ) *size = filelength(fileno(fp));
 890                         if ( offset ) *offset = 0;
 891                         if ( pack_filename ) {
 892                                 SDL_strlcpy( pack_filename, longname, MAX_PATH_LEN );
 893                         }
 894                         fclose(fp);
 895                         return 1;
 896                 }
 897         }
 898
 899         // Search the pak files and CD-ROM.
 900
 901                 for (i=0; i<Num_files; i++ )    {
 902                         cf_file * f = cf_get_file(i);
 903
 904                         // only search paths we're supposed to...
 905                         if ( (pathtype != CF_TYPE_ANY) && (pathtype != f->pathtype_index)  )    {
 906                                 continue;
 907                         }
 908
 909                         if (localize) {
 910                                 // create localized filespec
 911                                 char loc_filespec[MAX_PATH_LEN];
 912                                 SDL_strlcpy(loc_filespec, filespec, sizeof(loc_filespec));
 913                                 lcl_add_dir_to_path_with_filename(loc_filespec, sizeof(loc_filespec));
 914
 915                                 if ( !SDL_strcasecmp(loc_filespec, f->name_ext) )       {
 916                                         if ( size ) *size = f->size;
 917                                         if ( offset ) *offset = f->pack_offset;
 918                                         if ( pack_filename ) {
 919                                                 cf_root * r = cf_get_root(f->root_index);
 920
 921                                                 SDL_strlcpy( pack_filename, r->path, MAX_PATH_LEN );
 922                                                 if ( f->pack_offset < 1 )       {
 923                                                         SDL_strlcat( pack_filename, Pathtypes[f->pathtype_index].path, MAX_PATH_LEN );
 924                                                         SDL_strlcat( pack_filename, DIR_SEPARATOR_STR, MAX_PATH_LEN );
 925                                                         SDL_strlcat( pack_filename, f->name_ext, MAX_PATH_LEN );
 926                                                 }
 927                                         }
 928                                         return 1;
 929                                 }
 930                         }
 931
 932                         // file either not localized or localized version not found
 933                         if ( !SDL_strcasecmp(filespec, f->name_ext) )   {
 934                                 if ( size ) *size = f->size;
 935                                 if ( offset ) *offset = f->pack_offset;
 936                                 if ( pack_filename ) {
 937                                         cf_root * r = cf_get_root(f->root_index);
 938
 939                                         SDL_strlcpy( pack_filename, r->path, MAX_PATH_LEN );
 940                                         if ( f->pack_offset < 1 )       {
 941
 942                                                 if(strlen(Pathtypes[f->pathtype_index].path)){
 943                                                         SDL_strlcat( pack_filename, Pathtypes[f->pathtype_index].path, MAX_PATH_LEN );
 944                                                         SDL_strlcat( pack_filename, DIR_SEPARATOR_STR, MAX_PATH_LEN );
 945                                                 }
 946
 947                                                 SDL_strlcat( pack_filename, f->name_ext, MAX_PATH_LEN );
 948                                         }
 949                                 }
 950                                 return 1;
 951                         }
 952                 }
 953
 954         return 0;
 955 }
 956
 957
 958 // Returns true if filename matches filespec, else zero if not
 959 int cf_matches_spec(const char *filespec, const char *filename)
 960 {
 961         const char *src_ext, *dst_ext;
 962
 963         src_ext = SDL_strchr(filespec, '.');
 964         if (!src_ext)
 965                 return 1;
 966         if (*src_ext == '*')
 967                 return 1;
 968
 969         dst_ext = SDL_strchr(filename, '.');
 970         if (!dst_ext)
 971                 return 1;
 972
 973         return !SDL_strcasecmp(dst_ext, src_ext);
 974 }
 975
 976 int (*Get_file_list_filter)(const char *filename) = NULL;
 977 int Skip_packfile_search = 0;
 978
 979 int cf_file_already_in_list( int num_files, char **list, char *filename )
 980 {
 981         int i;
 982
 983         char name_no_extension[MAX_PATH_LEN];
 984
 985         SDL_strlcpy(name_no_extension, filename, sizeof(name_no_extension));
 986         char *p = SDL_strchr( name_no_extension, '.' );
 987         if ( p ) *p = 0;
 988
 989         for (i=0; i<num_files; i++ )    {
 990                 if ( !SDL_strcasecmp(list[i], name_no_extension ) )     {
 991                         // Match found!
 992                         return 1;
 993                 }
 994         }
 995         // Not found
 996         return 0;
 997 }
 998
 999 // An alternative cf_get_file_list(), dynamic list version.
1000 // This one has a 'type', which is a CF_TYPE_* value.  Because this specifies the directory
1001 // location, 'filter' only needs to be the filter itself, with no path information.
1002 // See above descriptions of cf_get_file_list() for more information about how it all works.
1003 int cf_get_file_list( int max, char **list, int pathtype, const char *filter, int sort, file_list_info *info )
1004 {
1005         char *ptr;
1006         int i, l, num_files = 0, own_flag = 0;
1007
1008         if (max < 1) {
1009                 Get_file_list_filter = NULL;
1010                 return 0;
1011         }
1012
1013         SDL_assert(list);
1014
1015         if (!info && (sort == CF_SORT_TIME)) {
1016                 info = (file_list_info *) malloc(sizeof(file_list_info) * max);
1017                 own_flag = 1;
1018         }
1019
1020         char filespec[MAX_PATH_LEN];
1021
1022 #ifdef PLAT_UNIX
1023         cf_create_default_path_string( filespec, pathtype, NULL );
1024
1025         DIR *dirp;
1026         struct dirent *dir;
1027
1028         dirp = opendir (filespec);
1029         if ( dirp ) {
1030                 while ((dir = readdir (dirp)) != NULL)
1031                 {
1032                         if (num_files >= max)
1033                                 break;
1034
1035                         if (fnmatch(filter, dir->d_name, 0) != 0)
1036                                 continue;
1037
1038                         char fn[MAX_PATH_LEN];
1039                         SDL_snprintf(fn, MAX_PATH_LEN, "%s/%s", filespec, dir->d_name);
1040
1041                         struct stat buf;
1042                         if (stat(fn, &buf) == -1) {
1043                                 continue;
1044                         }
1045
1046                         if (!S_ISREG(buf.st_mode)) {
1047                                 continue;
1048                         }
1049
1050                         if ( !Get_file_list_filter || (*Get_file_list_filter)(dir->d_name) ) {
1051                                 ptr = strrchr(dir->d_name, '.');
1052                                 if (ptr)
1053                                         l = ptr - dir->d_name;
1054                                 else
1055                                         l = strlen(dir->d_name);
1056
1057                                 list[num_files] = (char *)malloc(l + 1);
1058                                 SDL_strlcpy(list[num_files], dir->d_name, l+1);
1059                                 if (info)
1060                                         info[num_files].write_time = buf.st_mtime;
1061
1062                                 num_files++;
1063                         }
1064                 }
1065
1066                 closedir(dirp);
1067         }
1068 #else
1069         cf_create_default_path_string( filespec, pathtype, filter );
1070
1071         int find_handle;
1072         _finddata_t find;
1073
1074         find_handle = _findfirst( filespec, &find );
1075         if (find_handle != -1) {
1076                 do {
1077                         if (num_files >= max)
1078                                 break;
1079
1080                         if (!(find.attrib & _A_SUBDIR)) {
1081                                 if ( !Get_file_list_filter || (*Get_file_list_filter)(find.name) ) {
1082                                         ptr = strrchr(find.name, '.');
1083                                         if (ptr)
1084                                                 l = ptr - find.name;
1085                                         else
1086                                                 l = strlen(find.name);
1087
1088                                         list[num_files] = (char *)malloc(l + 1);
1089                                         SDL_strlcpy(list[num_files], find.name, l+1);
1090                                         if (info)
1091                                                 info[num_files].write_time = find.time_write;
1092
1093                                         num_files++;
1094                                 }
1095                         }
1096
1097                 } while (!_findnext(find_handle, &find));
1098
1099                 _findclose( find_handle );
1100         }
1101 #endif
1102
1103         // Search all the packfiles and CD.
1104         if ( !Skip_packfile_search )    {
1105                 for (i=0; i<Num_files; i++ )    {
1106                         cf_file * f = cf_get_file(i);
1107
1108                         // only search paths we're supposed to...
1109                         if ( (pathtype != CF_TYPE_ANY) && (pathtype != f->pathtype_index)  )    {
1110                                 continue;
1111                         }
1112
1113                         if (num_files >= max)
1114                                 break;
1115
1116                         if ( !cf_matches_spec( filter,f->name_ext))     {
1117                                 continue;
1118                         }
1119
1120                         if ( cf_file_already_in_list(num_files,list,f->name_ext))       {
1121                                 continue;
1122                         }
1123
1124                         if ( !Get_file_list_filter || (*Get_file_list_filter)(f->name_ext) ) {
1125
1126                                 //mprintf(( "Found '%s' in root %d path %d\n", f->name_ext, f->root_index, f->pathtype_index ));
1127
1128                                         ptr = strrchr(f->name_ext, '.');
1129                                         if (ptr)
1130                                                 l = ptr - f->name_ext;
1131                                         else
1132                                                 l = strlen(f->name_ext);
1133
1134                                         list[num_files] = (char *)malloc(l + 1);
1135                                         SDL_strlcpy(list[num_files], f->name_ext, l+1);
1136
1137                                 if (info)       {
1138                                         info[num_files].write_time = f->write_time;
1139                                 }
1140
1141                                 num_files++;
1142                         }
1143
1144                 }
1145         }
1146
1147
1148         if (sort != CF_SORT_NONE)       {
1149                 cf_sort_filenames( num_files, list, sort, info );
1150         }
1151
1152         if (own_flag)   {
1153                 free(info);
1154         }
1155
1156         Get_file_list_filter = NULL;
1157         return num_files;
1158 }
1159
1160 int cf_file_already_in_list_preallocated( int num_files, char arr[][MAX_FILENAME_LEN], const char *filename )
1161 {
1162         int i;
1163
1164         char name_no_extension[MAX_PATH_LEN];
1165
1166         SDL_strlcpy(name_no_extension, filename, sizeof(name_no_extension));
1167         char *p = SDL_strchr( name_no_extension, '.' );
1168         if ( p ) *p = 0;
1169
1170         for (i=0; i<num_files; i++ )    {
1171                 if ( !SDL_strcasecmp(arr[i], name_no_extension ) )      {
1172                         // Match found!
1173                         return 1;
1174                 }
1175         }
1176         // Not found
1177         return 0;
1178 }
1179
1180 // An alternative cf_get_file_list(), fixed array version.
1181 // This one has a 'type', which is a CF_TYPE_* value.  Because this specifies the directory
1182 // location, 'filter' only needs to be the filter itself, with no path information.
1183 // See above descriptions of cf_get_file_list() for more information about how it all works.
1184 int cf_get_file_list_preallocated( int max, char arr[][MAX_FILENAME_LEN], char **list, int pathtype, const char *filter, int sort, file_list_info *info )
1185 {
1186         int i, num_files = 0, own_flag = 0;
1187
1188         if (max < 1) {
1189                 Get_file_list_filter = NULL;
1190                 return 0;
1191         }
1192
1193         if (list) {
1194                 for (i=0; i<max; i++)   {
1195                         list[i] = arr[i];
1196                 }
1197         } else {
1198                 sort = CF_SORT_NONE;  // sorting of array directly not supported.  Sorting done on list only
1199         }
1200
1201         if (!info && (sort == CF_SORT_TIME)) {
1202                 info = (file_list_info *) malloc(sizeof(file_list_info) * max);
1203                 own_flag = 1;
1204         }
1205
1206         char filespec[MAX_PATH_LEN];
1207
1208         // Search the default directories
1209 #ifdef PLAT_UNIX
1210         cf_create_default_path_string( filespec, pathtype, NULL );
1211
1212         DIR *dirp;
1213         struct dirent *dir;
1214
1215         dirp = opendir (filespec);
1216         if ( dirp ) {
1217                 while ((dir = readdir (dirp)) != NULL)
1218                 {
1219                         if (num_files >= max)
1220                                 break;
1221
1222                         if (fnmatch(filter, dir->d_name, 0) != 0)
1223                                 continue;
1224
1225                         char fn[MAX_PATH_LEN];
1226                         SDL_snprintf(fn, MAX_PATH_LEN, "%s/%s", filespec, dir->d_name);
1227
1228                         struct stat buf;
1229                         if (stat(fn, &buf) == -1) {
1230                                 continue;
1231                         }
1232
1233                         if (!S_ISREG(buf.st_mode)) {
1234                                 continue;
1235                         }
1236
1237                         if ( !Get_file_list_filter || (*Get_file_list_filter)(dir->d_name) ) {
1238
1239                                 SDL_strlcpy(arr[num_files], dir->d_name, MAX_FILENAME_LEN);
1240                                 char *ptr = strrchr(arr[num_files], '.');
1241                                 if ( ptr ) {
1242                                         *ptr = 0;
1243                                 }
1244
1245                                 if (info)       {
1246                                         info[num_files].write_time = buf.st_mtime;
1247                                 }
1248
1249                                 num_files++;
1250                         }
1251                 }
1252                 closedir(dirp);
1253         }
1254 #else
1255         cf_create_default_path_string( filespec, pathtype, filter );
1256
1257         int find_handle;
1258         _finddata_t find;
1259
1260         find_handle = _findfirst( filespec, &find );
1261         if (find_handle != -1) {
1262                 do {
1263                         if (num_files >= max)
1264                                 break;
1265
1266                         if (!(find.attrib & _A_SUBDIR)) {
1267
1268                                 if ( !Get_file_list_filter || (*Get_file_list_filter)(find.name) ) {
1269
1270                                         SDL_strlcpy(arr[num_files], find.name, MAX_FILENAME_LEN);
1271                                         char *ptr = strrchr(arr[num_files], '.');
1272                                         if ( ptr ) {
1273                                                 *ptr = 0;
1274                                         }
1275
1276                                         if (info)       {
1277                                                 info[num_files].write_time = find.time_write;
1278                                         }
1279
1280                                         num_files++;
1281                                 }
1282                         }
1283
1284                 } while (!_findnext(find_handle, &find));
1285
1286                 _findclose( find_handle );
1287         }
1288 #endif
1289
1290
1291         // Search all the packfiles and CD.
1292         if ( !Skip_packfile_search )    {
1293                 for (i=0; i<Num_files; i++ )    {
1294                         cf_file * f = cf_get_file(i);
1295
1296                         // only search paths we're supposed to...
1297                         if ( (pathtype != CF_TYPE_ANY) && (pathtype != f->pathtype_index)  )    {
1298                                 continue;
1299                         }
1300
1301                         if (num_files >= max)
1302                                 break;
1303
1304                         if ( !cf_matches_spec( filter,f->name_ext))     {
1305                                 continue;
1306                         }
1307
1308                         if ( cf_file_already_in_list_preallocated( num_files, arr, f->name_ext ))       {
1309                                 continue;
1310                         }
1311
1312                         if ( !Get_file_list_filter || (*Get_file_list_filter)(f->name_ext) ) {
1313
1314                                 //mprintf(( "Found '%s' in root %d path %d\n", f->name_ext, f->root_index, f->pathtype_index ));
1315
1316                                 SDL_strlcpy(arr[num_files], f->name_ext, MAX_FILENAME_LEN);
1317                                 char *ptr = strrchr(arr[num_files], '.');
1318                                 if ( ptr ) {
1319                                         *ptr = 0;
1320                                 }
1321
1322                                 if (info)       {
1323                                         info[num_files].write_time = f->write_time;
1324                                 }
1325
1326                                 num_files++;
1327                         }
1328
1329                 }
1330         }
1331
1332         if (sort != CF_SORT_NONE) {
1333                 SDL_assert(list);
1334                 cf_sort_filenames( num_files, list, sort, info );
1335         }
1336
1337         if (own_flag)   {
1338                 free(info);
1339         }
1340
1341         Get_file_list_filter = NULL;
1342         return num_files;
1343 }
1344
1345 // Returns the default storage path for files given a
1346 // particular pathtype.   In other words, the path to
1347 // the unpacked, non-cd'd, stored on hard drive path.
1348 // If filename isn't null it will also tack the filename
1349 // on the end, creating a completely valid filename.
1350 // Input:   pathtype  - CF_TYPE_??
1351 //          filename  - optional, if set, tacks the filename onto end of path.
1352 // Output:  path      - Fully qualified pathname.
1353 void cf_create_default_path_string( char *path, int pathtype, const char *filename, bool localize )
1354 {
1355 #ifdef PLAT_UNIX
1356         const char *toks = "/";
1357 #else
1358         const char *toks = "/\\:";
1359 #endif
1360
1361         if ( filename && strpbrk(filename, toks) ) {
1362                 // Already has full path
1363                 SDL_strlcpy( path, filename, MAX_PATH_LEN );
1364         } else {
1365                 if ( cfile_init_paths() ) {
1366                         SDL_strlcpy(path, (filename) ? filename : "", MAX_PATH_LEN);
1367                         return;
1368                 }
1369
1370                 SDL_assert(CF_TYPE_SPECIFIED(pathtype));
1371
1372                 SDL_strlcpy(path, Cfile_user_dir, MAX_PATH_LEN);
1373                 SDL_strlcat(path, Pathtypes[pathtype].path, MAX_PATH_LEN);
1374
1375                 // Don't add slash for root directory
1376                 if (Pathtypes[pathtype].path[0] != '\0') {
1377                         SDL_strlcat(path, DIR_SEPARATOR_STR, MAX_PATH_LEN);
1378                 }
1379
1380                 // add filename
1381                 if (filename) {
1382                         SDL_strlcat(path, filename, MAX_PATH_LEN);
1383
1384                         // localize filename
1385                         if (localize) {
1386                                 // create copy of path
1387                                 char temp_path[MAX_PATH_LEN];
1388                                 SDL_strlcpy(temp_path, path, sizeof(temp_path));
1389
1390                                 // localize the path
1391                                 lcl_add_dir_to_path_with_filename(path, MAX_PATH_LEN);
1392
1393                                 // verify localized path
1394                                 FILE *fp = fopen(path, "rb");
1395                                 if (fp) {
1396                                         fclose(fp);
1397                                 } else {
1398                                         SDL_strlcpy(path, temp_path, sizeof(temp_path));
1399                                 }
1400                         }
1401                 }
1402         }
1403 }
1404
1405 // returns true if packfile has been indexed by CFILE (case-insensitive search)
1406 bool cf_has_packfile(const char *fn)
1407 {
1408         cf_root *root;
1409         char vp_name[CF_MAX_PATHNAME_LENGTH];
1410         char *p;
1411         int i;
1412
1413         if (fn == NULL) {
1414                 return false;
1415         }
1416
1417         if ( !SDL_strlen(fn) || (SDL_strlen(fn) < 4) ) {
1418                 return false;
1419         }
1420
1421         // add ".vp" if needed
1422         SDL_strlcpy(vp_name, fn, CF_MAX_PATHNAME_LENGTH);
1423
1424         p = &vp_name[SDL_strlen(vp_name)-3];
1425
1426         if ( SDL_strcasecmp(p, ".vp") ) {
1427                 SDL_strlcat(vp_name, ".vp", CF_MAX_PATHNAME_LENGTH);
1428         }
1429
1430         // now see if we have the packfile
1431         for (i = 0; i < Num_roots; i++) {
1432                 root = cf_get_root(i);
1433
1434                 if (root->roottype != CF_ROOTTYPE_PACK) {
1435                         continue;
1436                 }
1437
1438                 p = SDL_strrchr(root->path, DIR_SEPARATOR_CHAR);
1439
1440                 if (p) {
1441                         p++;
1442
1443                         if ( !SDL_strcasecmp(p, vp_name) ) {
1444                                 return true;
1445                         }
1446                 }
1447         }
1448
1449         return false;
1450 }