4 Copyright (C) 2003-2006 Mathieu Olivier
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to:
20 Free Software Foundation, Inc.
21 59 Temple Place - Suite 330
22 Boston, MA 02111-1307, USA
36 # include <sys/stat.h>
43 // Win32 requires us to add O_BINARY, but the other OSes don't have it
48 // In case the system doesn't support the O_NONBLOCK flag
53 // largefile support for Win32
55 # define lseek _lseeki64
60 All of Quake's data access is through a hierchal file system, but the contents
61 of the file system can be transparently merged from several sources.
63 The "base directory" is the path to the directory holding the quake.exe and
64 all game directories. The sys_* files pass this to host_init in
65 quakeparms_t->basedir. This can be overridden with the "-basedir" command
66 line parm to allow code debugging in a different directory. The base
67 directory is only used during filesystem initialization.
69 The "game directory" is the first tree on the search path and directory that
70 all generated files (savegames, screenshots, demos, config files) will be
71 saved to. This can be overridden with the "-game" command line parameter.
72 The game directory can never be changed while quake is executing. This is a
73 precaution against having a malicious server instruct clients to write files
74 over areas they shouldn't.
80 =============================================================================
84 =============================================================================
87 // Magic numbers of a ZIP file (big-endian format)
88 #define ZIP_DATA_HEADER 0x504B0304 // "PK\3\4"
89 #define ZIP_CDIR_HEADER 0x504B0102 // "PK\1\2"
90 #define ZIP_END_HEADER 0x504B0506 // "PK\5\6"
92 // Other constants for ZIP files
93 #define ZIP_MAX_COMMENTS_SIZE ((unsigned short)0xFFFF)
94 #define ZIP_END_CDIR_SIZE 22
95 #define ZIP_CDIR_CHUNK_BASE_SIZE 46
96 #define ZIP_LOCAL_CHUNK_BASE_SIZE 30
98 // Zlib constants (from zlib.h)
99 #define Z_SYNC_FLUSH 2
102 #define Z_STREAM_END 1
103 #define ZLIB_VERSION "1.2.3"
105 // Uncomment the following line if the zlib DLL you have still uses
106 // the 1.1.x series calling convention on Win32 (WINAPI)
107 //#define ZLIB_USES_WINAPI
111 =============================================================================
115 =============================================================================
118 // Zlib stream (from zlib.h)
119 // Warning: some pointers we don't use directly have
120 // been cast to "void*" for a matter of simplicity
123 unsigned char *next_in; // next input byte
124 unsigned int avail_in; // number of bytes available at next_in
125 unsigned long total_in; // total nb of input bytes read so far
127 unsigned char *next_out; // next output byte should be put there
128 unsigned int avail_out; // remaining free space at next_out
129 unsigned long total_out; // total nb of bytes output so far
131 char *msg; // last error message, NULL if no error
132 void *state; // not visible by applications
134 void *zalloc; // used to allocate the internal state
135 void *zfree; // used to free the internal state
136 void *opaque; // private data object passed to zalloc and zfree
138 int data_type; // best guess about the data type: ascii or binary
139 unsigned long adler; // adler32 value of the uncompressed data
140 unsigned long reserved; // reserved for future use
144 // inside a package (PAK or PK3)
145 #define QFILE_FLAG_PACKED (1 << 0)
146 // file is compressed using the deflate algorithm (PK3 only)
147 #define QFILE_FLAG_DEFLATED (1 << 1)
149 #define FILE_BUFF_SIZE 2048
153 size_t comp_length; // length of the compressed file
154 size_t in_ind, in_len; // input buffer current index and length
155 size_t in_position; // position in the compressed file
156 unsigned char input [FILE_BUFF_SIZE];
162 int handle; // file descriptor
163 fs_offset_t real_length; // uncompressed file size (for files opened in "read" mode)
164 fs_offset_t position; // current position in the file
165 fs_offset_t offset; // offset into the package (0 if external file)
166 int ungetc; // single stored character from ungetc, cleared to EOF when read
169 fs_offset_t buff_ind, buff_len; // buffer current index and length
170 unsigned char buff [FILE_BUFF_SIZE];
177 // ------ PK3 files on disk ------ //
179 // You can get the complete ZIP format description from PKWARE website
181 typedef struct pk3_endOfCentralDir_s
183 unsigned int signature;
184 unsigned short disknum;
185 unsigned short cdir_disknum; // number of the disk with the start of the central directory
186 unsigned short localentries; // number of entries in the central directory on this disk
187 unsigned short nbentries; // total number of entries in the central directory on this disk
188 unsigned int cdir_size; // size of the central directory
189 unsigned int cdir_offset; // with respect to the starting disk number
190 unsigned short comment_size;
191 } pk3_endOfCentralDir_t;
194 // ------ PAK files on disk ------ //
195 typedef struct dpackfile_s
198 int filepos, filelen;
201 typedef struct dpackheader_s
209 // Packages in memory
210 // the offset in packfile_t is the true contents offset
211 #define PACKFILE_FLAG_TRUEOFFS (1 << 0)
212 // file compressed using the deflate algorithm
213 #define PACKFILE_FLAG_DEFLATED (1 << 1)
215 typedef struct packfile_s
217 char name [MAX_QPATH];
220 fs_offset_t packsize; // size in the package
221 fs_offset_t realsize; // real file size (uncompressed)
224 typedef struct pack_s
226 char filename [MAX_OSPATH];
228 int ignorecase; // PK3 ignores case
234 // Search paths for files (including packages)
235 typedef struct searchpath_s
237 // only one of filename / pack will be used
238 char filename[MAX_OSPATH];
240 struct searchpath_s *next;
245 =============================================================================
249 =============================================================================
255 static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet);
256 static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack,
257 fs_offset_t offset, fs_offset_t packsize,
258 fs_offset_t realsize, int flags);
262 =============================================================================
266 =============================================================================
269 mempool_t *fs_mempool;
271 searchpath_t *fs_searchpaths = NULL;
273 #define MAX_FILES_IN_PACK 65536
275 char fs_gamedir[MAX_OSPATH];
276 char fs_basedir[MAX_OSPATH];
278 // list of active game directories (empty if not running a mod)
279 int fs_numgamedirs = 0;
280 char fs_gamedirs[MAX_GAMEDIRS][MAX_QPATH];
282 cvar_t scr_screenshot_name = {0, "scr_screenshot_name","dp", "prefix name for saved screenshots (changes based on -game commandline, as well as which game mode is running)"};
283 cvar_t fs_empty_files_in_pack_mark_deletions = {0, "fs_empty_files_in_pack_mark_deletions", "0", "if enabled, empty files in a pak/pk3 count as not existing but cancel the search in further packs, effectively allowing patch pak/pk3 files to 'delete' files"};
287 =============================================================================
289 PRIVATE FUNCTIONS - PK3 HANDLING
291 =============================================================================
294 // Functions exported from zlib
295 #if defined(WIN32) && defined(ZLIB_USES_WINAPI)
296 # define ZEXPORT WINAPI
301 static int (ZEXPORT *qz_inflate) (z_stream* strm, int flush);
302 static int (ZEXPORT *qz_inflateEnd) (z_stream* strm);
303 static int (ZEXPORT *qz_inflateInit2_) (z_stream* strm, int windowBits, const char *version, int stream_size);
304 static int (ZEXPORT *qz_inflateReset) (z_stream* strm);
306 #define qz_inflateInit2(strm, windowBits) \
307 qz_inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
309 static dllfunction_t zlibfuncs[] =
311 {"inflate", (void **) &qz_inflate},
312 {"inflateEnd", (void **) &qz_inflateEnd},
313 {"inflateInit2_", (void **) &qz_inflateInit2_},
314 {"inflateReset", (void **) &qz_inflateReset},
318 // Handle for Zlib DLL
319 static dllhandle_t zlib_dll = NULL;
329 void PK3_CloseLibrary (void)
331 Sys_UnloadLibrary (&zlib_dll);
339 Try to load the Zlib DLL
342 qboolean PK3_OpenLibrary (void)
344 const char* dllnames [] =
349 # ifdef ZLIB_USES_WINAPI
355 #elif defined(MACOSX)
369 return Sys_LoadLibrary (dllnames, &zlib_dll, zlibfuncs);
375 PK3_GetEndOfCentralDir
377 Extract the end of the central directory from a PK3 package
380 qboolean PK3_GetEndOfCentralDir (const char *packfile, int packhandle, pk3_endOfCentralDir_t *eocd)
382 fs_offset_t filesize, maxsize;
383 unsigned char *buffer, *ptr;
386 // Get the package size
387 filesize = lseek (packhandle, 0, SEEK_END);
388 if (filesize < ZIP_END_CDIR_SIZE)
391 // Load the end of the file in memory
392 if (filesize < ZIP_MAX_COMMENTS_SIZE + ZIP_END_CDIR_SIZE)
395 maxsize = ZIP_MAX_COMMENTS_SIZE + ZIP_END_CDIR_SIZE;
396 buffer = (unsigned char *)Mem_Alloc (tempmempool, maxsize);
397 lseek (packhandle, filesize - maxsize, SEEK_SET);
398 if (read (packhandle, buffer, maxsize) != (fs_offset_t) maxsize)
404 // Look for the end of central dir signature around the end of the file
405 maxsize -= ZIP_END_CDIR_SIZE;
406 ptr = &buffer[maxsize];
408 while (BuffBigLong (ptr) != ZIP_END_HEADER)
420 memcpy (eocd, ptr, ZIP_END_CDIR_SIZE);
421 eocd->signature = LittleLong (eocd->signature);
422 eocd->disknum = LittleShort (eocd->disknum);
423 eocd->cdir_disknum = LittleShort (eocd->cdir_disknum);
424 eocd->localentries = LittleShort (eocd->localentries);
425 eocd->nbentries = LittleShort (eocd->nbentries);
426 eocd->cdir_size = LittleLong (eocd->cdir_size);
427 eocd->cdir_offset = LittleLong (eocd->cdir_offset);
428 eocd->comment_size = LittleShort (eocd->comment_size);
440 Extract the file list from a PK3 file
443 int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd)
445 unsigned char *central_dir, *ptr;
447 fs_offset_t remaining;
449 // Load the central directory in memory
450 central_dir = (unsigned char *)Mem_Alloc (tempmempool, eocd->cdir_size);
451 lseek (pack->handle, eocd->cdir_offset, SEEK_SET);
452 read (pack->handle, central_dir, eocd->cdir_size);
454 // Extract the files properties
455 // The parsing is done "by hand" because some fields have variable sizes and
456 // the constant part isn't 4-bytes aligned, which makes the use of structs difficult
457 remaining = eocd->cdir_size;
460 for (ind = 0; ind < eocd->nbentries; ind++)
462 fs_offset_t namesize, count;
464 // Checking the remaining size
465 if (remaining < ZIP_CDIR_CHUNK_BASE_SIZE)
467 Mem_Free (central_dir);
470 remaining -= ZIP_CDIR_CHUNK_BASE_SIZE;
473 if (BuffBigLong (ptr) != ZIP_CDIR_HEADER)
475 Mem_Free (central_dir);
479 namesize = BuffLittleShort (&ptr[28]); // filename length
481 // Check encryption, compression, and attributes
482 // 1st uint8 : general purpose bit flag
483 // Check bits 0 (encryption), 3 (data descriptor after the file), and 5 (compressed patched data (?))
484 // 2nd uint8 : external file attributes
485 // Check bits 3 (file is a directory) and 5 (file is a volume (?))
486 if ((ptr[8] & 0x29) == 0 && (ptr[38] & 0x18) == 0)
488 // Still enough bytes for the name?
489 if (remaining < namesize || namesize >= (int)sizeof (*pack->files))
491 Mem_Free (central_dir);
495 // WinZip doesn't use the "directory" attribute, so we need to check the name directly
496 if (ptr[ZIP_CDIR_CHUNK_BASE_SIZE + namesize - 1] != '/')
498 char filename [sizeof (pack->files[0].name)];
499 fs_offset_t offset, packsize, realsize;
502 // Extract the name (strip it if necessary)
503 namesize = min(namesize, (int)sizeof (filename) - 1);
504 memcpy (filename, &ptr[ZIP_CDIR_CHUNK_BASE_SIZE], namesize);
505 filename[namesize] = '\0';
507 if (BuffLittleShort (&ptr[10]))
508 flags = PACKFILE_FLAG_DEFLATED;
511 offset = BuffLittleLong (&ptr[42]);
512 packsize = BuffLittleLong (&ptr[20]);
513 realsize = BuffLittleLong (&ptr[24]);
514 FS_AddFileToPack (filename, pack, offset, packsize, realsize, flags);
518 // Skip the name, additionnal field, and comment
519 // 1er uint16 : extra field length
520 // 2eme uint16 : file comment length
521 count = namesize + BuffLittleShort (&ptr[30]) + BuffLittleShort (&ptr[32]);
522 ptr += ZIP_CDIR_CHUNK_BASE_SIZE + count;
526 // If the package is empty, central_dir is NULL here
527 if (central_dir != NULL)
528 Mem_Free (central_dir);
529 return pack->numfiles;
537 Create a package entry associated with a PK3 file
540 pack_t *FS_LoadPackPK3 (const char *packfile)
543 pk3_endOfCentralDir_t eocd;
547 packhandle = open (packfile, O_RDONLY | O_BINARY);
551 if (! PK3_GetEndOfCentralDir (packfile, packhandle, &eocd))
553 Con_Printf ("%s is not a PK3 file\n", packfile);
558 // Multi-volume ZIP archives are NOT allowed
559 if (eocd.disknum != 0 || eocd.cdir_disknum != 0)
561 Con_Printf ("%s is a multi-volume ZIP archive\n", packfile);
566 // We only need to do this test if MAX_FILES_IN_PACK is lesser than 65535
567 // since eocd.nbentries is an unsigned 16 bits integer
568 #if MAX_FILES_IN_PACK < 65535
569 if (eocd.nbentries > MAX_FILES_IN_PACK)
571 Con_Printf ("%s contains too many files (%hu)\n", packfile, eocd.nbentries);
577 // Create a package structure in memory
578 pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t));
579 pack->ignorecase = true; // PK3 ignores case
580 strlcpy (pack->filename, packfile, sizeof (pack->filename));
581 pack->handle = packhandle;
582 pack->numfiles = eocd.nbentries;
583 pack->files = (packfile_t *)Mem_Alloc(fs_mempool, eocd.nbentries * sizeof(packfile_t));
585 real_nb_files = PK3_BuildFileList (pack, &eocd);
586 if (real_nb_files < 0)
588 Con_Printf ("%s is not a valid PK3 file\n", packfile);
594 Con_Printf("Added packfile %s (%i files)\n", packfile, real_nb_files);
601 PK3_GetTrueFileOffset
603 Find where the true file data offset is
606 qboolean PK3_GetTrueFileOffset (packfile_t *pfile, pack_t *pack)
608 unsigned char buffer [ZIP_LOCAL_CHUNK_BASE_SIZE];
612 if (pfile->flags & PACKFILE_FLAG_TRUEOFFS)
615 // Load the local file description
616 lseek (pack->handle, pfile->offset, SEEK_SET);
617 count = read (pack->handle, buffer, ZIP_LOCAL_CHUNK_BASE_SIZE);
618 if (count != ZIP_LOCAL_CHUNK_BASE_SIZE || BuffBigLong (buffer) != ZIP_DATA_HEADER)
620 Con_Printf ("Can't retrieve file %s in package %s\n", pfile->name, pack->filename);
624 // Skip name and extra field
625 pfile->offset += BuffLittleShort (&buffer[26]) + BuffLittleShort (&buffer[28]) + ZIP_LOCAL_CHUNK_BASE_SIZE;
627 pfile->flags |= PACKFILE_FLAG_TRUEOFFS;
633 =============================================================================
635 OTHER PRIVATE FUNCTIONS
637 =============================================================================
645 Add a file to the list of files contained into a package
648 static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack,
649 fs_offset_t offset, fs_offset_t packsize,
650 fs_offset_t realsize, int flags)
652 int (*strcmp_funct) (const char* str1, const char* str2);
653 int left, right, middle;
656 strcmp_funct = pack->ignorecase ? strcasecmp : strcmp;
658 // Look for the slot we should put that file into (binary search)
660 right = pack->numfiles - 1;
661 while (left <= right)
665 middle = (left + right) / 2;
666 diff = strcmp_funct (pack->files[middle].name, name);
668 // If we found the file, there's a problem
670 Con_Printf ("Package %s contains the file %s several times\n", pack->filename, name);
672 // If we're too far in the list
679 // We have to move the right of the list by one slot to free the one we need
680 pfile = &pack->files[left];
681 memmove (pfile + 1, pfile, (pack->numfiles - left) * sizeof (*pfile));
684 strlcpy (pfile->name, name, sizeof (pfile->name));
685 pfile->offset = offset;
686 pfile->packsize = packsize;
687 pfile->realsize = realsize;
688 pfile->flags = flags;
698 Only used for FS_Open.
701 void FS_CreatePath (char *path)
705 for (ofs = path+1 ; *ofs ; ofs++)
707 if (*ofs == '/' || *ofs == '\\')
709 // create the directory
725 void FS_Path_f (void)
729 Con_Print("Current search path:\n");
730 for (s=fs_searchpaths ; s ; s=s->next)
733 Con_Printf("%s (%i files)\n", s->pack->filename, s->pack->numfiles);
735 Con_Printf("%s\n", s->filename);
744 Takes an explicit (not game tree related) path to a pak file.
746 Loads the header and directory, adding the files at the beginning
747 of the list so they override previous pack files.
750 pack_t *FS_LoadPackPAK (const char *packfile)
752 dpackheader_t header;
758 packhandle = open (packfile, O_RDONLY | O_BINARY);
761 read (packhandle, (void *)&header, sizeof(header));
762 if (memcmp(header.id, "PACK", 4))
764 Con_Printf ("%s is not a packfile\n", packfile);
768 header.dirofs = LittleLong (header.dirofs);
769 header.dirlen = LittleLong (header.dirlen);
771 if (header.dirlen % sizeof(dpackfile_t))
773 Con_Printf ("%s has an invalid directory size\n", packfile);
778 numpackfiles = header.dirlen / sizeof(dpackfile_t);
780 if (numpackfiles > MAX_FILES_IN_PACK)
782 Con_Printf ("%s has %i files\n", packfile, numpackfiles);
787 info = (dpackfile_t *)Mem_Alloc(tempmempool, sizeof(*info) * numpackfiles);
788 lseek (packhandle, header.dirofs, SEEK_SET);
789 if(header.dirlen != read (packhandle, (void *)info, header.dirlen))
791 Con_Printf("%s is an incomplete PAK, not loading\n", packfile);
797 pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t));
798 pack->ignorecase = false; // PAK is case sensitive
799 strlcpy (pack->filename, packfile, sizeof (pack->filename));
800 pack->handle = packhandle;
802 pack->files = (packfile_t *)Mem_Alloc(fs_mempool, numpackfiles * sizeof(packfile_t));
804 // parse the directory
805 for (i = 0;i < numpackfiles;i++)
807 fs_offset_t offset = LittleLong (info[i].filepos);
808 fs_offset_t size = LittleLong (info[i].filelen);
810 FS_AddFileToPack (info[i].name, pack, offset, size, size, PACKFILE_FLAG_TRUEOFFS);
815 Con_Printf("Added packfile %s (%i files)\n", packfile, numpackfiles);
823 Adds the given pack to the search path.
824 The pack type is autodetected by the file extension.
826 Returns true if the file was successfully added to the
827 search path or if it was already included.
829 If keep_plain_dirs is set, the pack will be added AFTER the first sequence of
833 static qboolean FS_AddPack_Fullpath(const char *pakfile, qboolean *already_loaded, qboolean keep_plain_dirs)
835 searchpath_t *search;
837 const char *ext = FS_FileExtension(pakfile);
839 for(search = fs_searchpaths; search; search = search->next)
841 if(search->pack && !strcasecmp(search->pack->filename, pakfile))
844 *already_loaded = true;
845 return true; // already loaded
850 *already_loaded = false;
852 if(!strcasecmp(ext, "pak"))
853 pak = FS_LoadPackPAK (pakfile);
854 else if(!strcasecmp(ext, "pk3"))
855 pak = FS_LoadPackPK3 (pakfile);
857 Con_Printf("\"%s\" does not have a pack extension\n", pakfile);
863 // find the first item whose next one is a pack or NULL
864 searchpath_t *insertion_point = 0;
865 if(fs_searchpaths && !fs_searchpaths->pack)
867 insertion_point = fs_searchpaths;
870 if(!insertion_point->next)
872 if(insertion_point->next->pack)
874 insertion_point = insertion_point->next;
877 // If insertion_point is NULL, this means that either there is no
878 // item in the list yet, or that the very first item is a pack. In
879 // that case, we want to insert at the beginning...
882 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
884 search->next = fs_searchpaths;
885 fs_searchpaths = search;
888 // otherwise we want to append directly after insertion_point.
890 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
892 search->next = insertion_point->next;
893 insertion_point->next = search;
898 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
900 search->next = fs_searchpaths;
901 fs_searchpaths = search;
907 Con_Printf("unable to load pak \"%s\"\n", pakfile);
917 Adds the given pack to the search path and searches for it in the game path.
918 The pack type is autodetected by the file extension.
920 Returns true if the file was successfully added to the
921 search path or if it was already included.
923 If keep_plain_dirs is set, the pack will be added AFTER the first sequence of
927 qboolean FS_AddPack(const char *pakfile, qboolean *already_loaded, qboolean keep_plain_dirs)
929 char fullpath[MAX_QPATH];
931 searchpath_t *search;
934 *already_loaded = false;
936 // then find the real name...
937 search = FS_FindFile(pakfile, &index, true);
938 if(!search || search->pack)
940 Con_Printf("could not find pak \"%s\"\n", pakfile);
944 dpsnprintf(fullpath, sizeof(fullpath), "%s%s", search->filename, pakfile);
946 return FS_AddPack_Fullpath(fullpath, already_loaded, keep_plain_dirs);
954 Sets fs_gamedir, adds the directory to the head of the path,
955 then loads and adds pak1.pak pak2.pak ...
958 void FS_AddGameDirectory (const char *dir)
962 searchpath_t *search;
964 strlcpy (fs_gamedir, dir, sizeof (fs_gamedir));
966 stringlistinit(&list);
967 listdirectory(&list, "", dir);
968 stringlistsort(&list);
970 // add any PAK package in the directory
971 for (i = 0;i < list.numstrings;i++)
973 if (!strcasecmp(FS_FileExtension(list.strings[i]), "pak"))
975 FS_AddPack_Fullpath(list.strings[i], NULL, false);
979 // add any PK3 package in the directory
980 for (i = 0;i < list.numstrings;i++)
982 if (!strcasecmp(FS_FileExtension(list.strings[i]), "pk3"))
984 FS_AddPack_Fullpath(list.strings[i], NULL, false);
988 stringlistfreecontents(&list);
990 // Add the directory to the search path
991 // (unpacked files have the priority over packed files)
992 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
993 strlcpy (search->filename, dir, sizeof (search->filename));
994 search->next = fs_searchpaths;
995 fs_searchpaths = search;
1004 void FS_AddGameHierarchy (const char *dir)
1007 char userdir[MAX_QPATH];
1009 TCHAR mydocsdir[MAX_PATH + 1];
1011 const char *homedir;
1014 // Add the common game directory
1015 FS_AddGameDirectory (va("%s%s/", fs_basedir, dir));
1019 // Add the personal game directory
1021 if(SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, 0, mydocsdir) == S_OK)
1022 dpsnprintf(userdir, sizeof(userdir), "%s/My Games/%s/", mydocsdir, gameuserdirname);
1024 homedir = getenv ("HOME");
1026 dpsnprintf(userdir, sizeof(userdir), "%s/.%s/", homedir, gameuserdirname);
1030 if(!COM_CheckParm("-mygames"))
1032 int fd = open (va("%s%s/config.cfg", fs_basedir, dir), O_WRONLY | O_CREAT, 0666); // note: no O_TRUNC here!
1036 *userdir = 0; // we have write access to the game dir, so let's use it
1041 if(COM_CheckParm("-nohome"))
1044 if((i = COM_CheckParm("-userdir")) && i < com_argc - 1)
1045 dpsnprintf(userdir, sizeof(userdir), "%s/", com_argv[i+1]);
1048 FS_AddGameDirectory(va("%s%s/", userdir, dir));
1057 const char *FS_FileExtension (const char *in)
1059 const char *separator, *backslash, *colon, *dot;
1061 separator = strrchr(in, '/');
1062 backslash = strrchr(in, '\\');
1063 if (!separator || separator < backslash)
1064 separator = backslash;
1065 colon = strrchr(in, ':');
1066 if (!separator || separator < colon)
1069 dot = strrchr(in, '.');
1070 if (dot == NULL || (separator && (dot < separator)))
1082 const char *FS_FileWithoutPath (const char *in)
1084 const char *separator, *backslash, *colon;
1086 separator = strrchr(in, '/');
1087 backslash = strrchr(in, '\\');
1088 if (!separator || separator < backslash)
1089 separator = backslash;
1090 colon = strrchr(in, ':');
1091 if (!separator || separator < colon)
1093 return separator ? separator + 1 : in;
1102 void FS_ClearSearchPath (void)
1104 // unload all packs and directory information, close all pack files
1105 // (if a qfile is still reading a pack it won't be harmed because it used
1106 // dup() to get its own handle already)
1107 while (fs_searchpaths)
1109 searchpath_t *search = fs_searchpaths;
1110 fs_searchpaths = search->next;
1114 close(search->pack->handle);
1115 // free any memory associated with it
1116 if (search->pack->files)
1117 Mem_Free(search->pack->files);
1118 Mem_Free(search->pack);
1130 void FS_Rescan (void)
1133 qboolean fs_modified = false;
1135 FS_ClearSearchPath();
1137 // add the game-specific paths
1138 // gamedirname1 (typically id1)
1139 FS_AddGameHierarchy (gamedirname1);
1140 // update the com_modname (used for server info)
1141 strlcpy(com_modname, gamedirname1, sizeof(com_modname));
1143 // add the game-specific path, if any
1144 // (only used for mission packs and the like, which should set fs_modified)
1148 FS_AddGameHierarchy (gamedirname2);
1152 // Adds basedir/gamedir as an override game
1153 // LordHavoc: now supports multiple -game directories
1154 // set the com_modname (reported in server info)
1155 for (i = 0;i < fs_numgamedirs;i++)
1158 FS_AddGameHierarchy (fs_gamedirs[i]);
1159 // update the com_modname (used server info)
1160 strlcpy (com_modname, fs_gamedirs[i], sizeof (com_modname));
1163 // set the default screenshot name to either the mod name or the
1164 // gamemode screenshot name
1165 if (strcmp(com_modname, gamedirname1))
1166 Cvar_SetQuick (&scr_screenshot_name, com_modname);
1168 Cvar_SetQuick (&scr_screenshot_name, gamescreenshotname);
1170 // If "-condebug" is in the command line, remove the previous log file
1171 if (COM_CheckParm ("-condebug") != 0)
1172 unlink (va("%s/qconsole.log", fs_gamedir));
1174 // look for the pop.lmp file and set registered to true if it is found
1175 if ((gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE) && !FS_FileExists("gfx/pop.lmp"))
1178 Con_Print("Playing shareware version, with modification.\nwarning: most mods require full quake data.\n");
1180 Con_Print("Playing shareware version.\n");
1184 Cvar_Set ("registered", "1");
1185 if (gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1186 Con_Print("Playing registered version.\n");
1189 // unload all wads so that future queries will return the new data
1193 void FS_Rescan_f(void)
1203 extern void Host_SaveConfig (void);
1204 extern void Host_LoadConfig_f (void);
1205 qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean complain, qboolean failmissing)
1209 if (fs_numgamedirs == numgamedirs)
1211 for (i = 0;i < numgamedirs;i++)
1212 if (strcasecmp(fs_gamedirs[i], gamedirs[i]))
1214 if (i == numgamedirs)
1215 return true; // already using this set of gamedirs, do nothing
1218 if (numgamedirs > MAX_GAMEDIRS)
1221 Con_Printf("That is too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS);
1222 return false; // too many gamedirs
1225 for (i = 0;i < numgamedirs;i++)
1227 // if string is nasty, reject it
1228 if(FS_CheckNastyPath(gamedirs[i], true))
1231 Con_Printf("Nasty gamedir name rejected: %s\n", gamedirs[i]);
1232 return false; // nasty gamedirs
1236 for (i = 0;i < numgamedirs;i++)
1238 if (!FS_CheckGameDir(gamedirs[i]) && failmissing)
1241 Con_Printf("Gamedir missing: %s%s/\n", fs_basedir, gamedirs[i]);
1242 return false; // missing gamedirs
1248 fs_numgamedirs = numgamedirs;
1249 for (i = 0;i < fs_numgamedirs;i++)
1250 strlcpy(fs_gamedirs[i], gamedirs[i], sizeof(fs_gamedirs[i]));
1252 // reinitialize filesystem to detect the new paks
1255 // exec the new config
1256 Host_LoadConfig_f();
1258 // unload all sounds so they will be reloaded from the new files as needed
1259 S_UnloadAllSounds_f();
1261 // reinitialize renderer (this reloads hud/console background/etc)
1262 R_Modules_Restart();
1272 void FS_GameDir_f (void)
1276 char gamedirs[MAX_GAMEDIRS][MAX_QPATH];
1280 Con_Printf("gamedirs active:");
1281 for (i = 0;i < fs_numgamedirs;i++)
1282 Con_Printf(" %s", fs_gamedirs[i]);
1287 numgamedirs = Cmd_Argc() - 1;
1288 if (numgamedirs > MAX_GAMEDIRS)
1290 Con_Printf("Too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS);
1294 for (i = 0;i < numgamedirs;i++)
1295 strlcpy(gamedirs[i], Cmd_Argv(i+1), sizeof(gamedirs[i]));
1297 if ((cls.state == ca_connected && !cls.demoplayback) || sv.active)
1299 // actually, changing during game would work fine, but would be stupid
1300 Con_Printf("Can not change gamedir while client is connected or server is running!\n");
1304 // halt demo playback to close the file
1307 FS_ChangeGameDirs(numgamedirs, gamedirs, true, true);
1316 qboolean FS_CheckGameDir(const char *gamedir)
1320 stringlistinit(&list);
1321 listdirectory(&list, va("%s%s/", fs_basedir, gamedir), "");
1322 success = list.numstrings > 0;
1323 stringlistfreecontents(&list);
1337 fs_mempool = Mem_AllocPool("file management", 0, NULL);
1339 strlcpy(fs_gamedir, "", sizeof(fs_gamedir));
1341 // If the base directory is explicitly defined by the compilation process
1342 #ifdef DP_FS_BASEDIR
1343 strlcpy(fs_basedir, DP_FS_BASEDIR, sizeof(fs_basedir));
1345 strlcpy(fs_basedir, "", sizeof(fs_basedir));
1348 // FIXME: is there a better way to find the directory outside the .app?
1349 if (strstr(com_argv[0], ".app/"))
1353 split = strstr(com_argv[0], ".app/");
1354 while (split > com_argv[0] && *split != '/')
1356 strlcpy(fs_basedir, com_argv[0], sizeof(fs_basedir));
1357 fs_basedir[split - com_argv[0]] = 0;
1365 // Overrides the system supplied base directory (under GAMENAME)
1366 // COMMANDLINEOPTION: Filesystem: -basedir <path> chooses what base directory the game data is in, inside this there should be a data directory for the game (for example id1)
1367 i = COM_CheckParm ("-basedir");
1368 if (i && i < com_argc-1)
1370 strlcpy (fs_basedir, com_argv[i+1], sizeof (fs_basedir));
1371 i = (int)strlen (fs_basedir);
1372 if (i > 0 && (fs_basedir[i-1] == '\\' || fs_basedir[i-1] == '/'))
1373 fs_basedir[i-1] = 0;
1376 // add a path separator to the end of the basedir if it lacks one
1377 if (fs_basedir[0] && fs_basedir[strlen(fs_basedir) - 1] != '/' && fs_basedir[strlen(fs_basedir) - 1] != '\\')
1378 strlcat(fs_basedir, "/", sizeof(fs_basedir));
1380 if (!FS_CheckGameDir(gamedirname1))
1381 Con_Printf("WARNING: base gamedir %s%s/ not found!\n", fs_basedir, gamedirname1);
1383 if (gamedirname2 && !FS_CheckGameDir(gamedirname2))
1384 Con_Printf("WARNING: base gamedir %s%s/ not found!\n", fs_basedir, gamedirname2);
1387 // Adds basedir/gamedir as an override game
1388 // LordHavoc: now supports multiple -game directories
1389 for (i = 1;i < com_argc && fs_numgamedirs < MAX_GAMEDIRS;i++)
1393 if (!strcmp (com_argv[i], "-game") && i < com_argc-1)
1396 if (FS_CheckNastyPath(com_argv[i], true))
1397 Sys_Error("-game %s%s/ is a dangerous/non-portable path\n", fs_basedir, com_argv[i]);
1398 if (!FS_CheckGameDir(com_argv[i]))
1399 Con_Printf("WARNING: -game %s%s/ not found!\n", fs_basedir, com_argv[i]);
1400 // add the gamedir to the list of active gamedirs
1401 strlcpy (fs_gamedirs[fs_numgamedirs], com_argv[i], sizeof(fs_gamedirs[fs_numgamedirs]));
1406 // generate the searchpath
1410 void FS_Init_Commands(void)
1412 Cvar_RegisterVariable (&scr_screenshot_name);
1413 Cvar_RegisterVariable (&fs_empty_files_in_pack_mark_deletions);
1415 Cmd_AddCommand ("gamedir", FS_GameDir_f, "changes active gamedir list (can take multiple arguments), not including base directory (example usage: gamedir ctf)");
1416 Cmd_AddCommand ("fs_rescan", FS_Rescan_f, "rescans filesystem for new pack archives and any other changes");
1417 Cmd_AddCommand ("path", FS_Path_f, "print searchpath (game directories and archives)");
1418 Cmd_AddCommand ("dir", FS_Dir_f, "list files in searchpath matching an * filename pattern, one per line");
1419 Cmd_AddCommand ("ls", FS_Ls_f, "list files in searchpath matching an * filename pattern, multiple per line");
1427 void FS_Shutdown (void)
1429 // close all pack files and such
1430 // (hopefully there aren't any other open files, but they'll be cleaned up
1431 // by the OS anyway)
1432 FS_ClearSearchPath();
1433 Mem_FreePool (&fs_mempool);
1437 ====================
1440 Internal function used to create a qfile_t and open the relevant non-packed file on disk
1441 ====================
1443 static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean nonblocking)
1449 // Parse the mode string
1458 opt = O_CREAT | O_TRUNC;
1462 opt = O_CREAT | O_APPEND;
1465 Con_Printf ("FS_SysOpen(%s, %s): invalid mode\n", filepath, mode);
1468 for (ind = 1; mode[ind] != '\0'; ind++)
1479 Con_Printf ("FS_SysOpen(%s, %s): unknown character in mode (%c)\n",
1480 filepath, mode, mode[ind]);
1487 file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file));
1488 memset (file, 0, sizeof (*file));
1491 file->handle = open (filepath, mod | opt, 0666);
1492 if (file->handle < 0)
1498 file->real_length = lseek (file->handle, 0, SEEK_END);
1500 // For files opened in append mode, we start at the end of the file
1502 file->position = file->real_length;
1504 lseek (file->handle, 0, SEEK_SET);
1514 Open a packed file using its package file descriptor
1517 qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind)
1523 pfile = &pack->files[pack_ind];
1525 // If we don't have the true offset, get it now
1526 if (! (pfile->flags & PACKFILE_FLAG_TRUEOFFS))
1527 if (!PK3_GetTrueFileOffset (pfile, pack))
1530 // No Zlib DLL = no compressed files
1531 if (!zlib_dll && (pfile->flags & PACKFILE_FLAG_DEFLATED))
1533 Con_Printf("WARNING: can't open the compressed file %s\n"
1534 "You need the Zlib DLL to use compressed files\n",
1539 // LordHavoc: lseek affects all duplicates of a handle so we do it before
1540 // the dup() call to avoid having to close the dup_handle on error here
1541 if (lseek (pack->handle, pfile->offset, SEEK_SET) == -1)
1543 Con_Printf ("FS_OpenPackedFile: can't lseek to %s in %s (offset: %d)\n",
1544 pfile->name, pack->filename, (int) pfile->offset);
1548 dup_handle = dup (pack->handle);
1551 Con_Printf ("FS_OpenPackedFile: can't dup package's handle (pack: %s)\n", pack->filename);
1555 file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file));
1556 memset (file, 0, sizeof (*file));
1557 file->handle = dup_handle;
1558 file->flags = QFILE_FLAG_PACKED;
1559 file->real_length = pfile->realsize;
1560 file->offset = pfile->offset;
1564 if (pfile->flags & PACKFILE_FLAG_DEFLATED)
1568 file->flags |= QFILE_FLAG_DEFLATED;
1570 // We need some more variables
1571 ztk = (ztoolkit_t *)Mem_Alloc (fs_mempool, sizeof (*ztk));
1573 ztk->comp_length = pfile->packsize;
1575 // Initialize zlib stream
1576 ztk->zstream.next_in = ztk->input;
1577 ztk->zstream.avail_in = 0;
1579 /* From Zlib's "unzip.c":
1581 * windowBits is passed < 0 to tell that there is no zlib header.
1582 * Note that in this case inflate *requires* an extra "dummy" byte
1583 * after the compressed stream in order to complete decompression and
1584 * return Z_STREAM_END.
1585 * In unzip, i don't wait absolutely Z_STREAM_END because I known the
1586 * size of both compressed and uncompressed data
1588 if (qz_inflateInit2 (&ztk->zstream, -MAX_WBITS) != Z_OK)
1590 Con_Printf ("FS_OpenPackedFile: inflate init error (file: %s)\n", pfile->name);
1596 ztk->zstream.next_out = file->buff;
1597 ztk->zstream.avail_out = sizeof (file->buff);
1606 ====================
1609 Return true if the path should be rejected due to one of the following:
1610 1: path elements that are non-portable
1611 2: path elements that would allow access to files outside the game directory,
1612 or are just not a good idea for a mod to be using.
1613 ====================
1615 int FS_CheckNastyPath (const char *path, qboolean isgamedir)
1617 // all: never allow an empty path, as for gamedir it would access the parent directory and a non-gamedir path it is just useless
1621 // Windows: don't allow \ in filenames (windows-only), period.
1622 // (on Windows \ is a directory separator, but / is also supported)
1623 if (strstr(path, "\\"))
1624 return 1; // non-portable
1626 // Mac: don't allow Mac-only filenames - : is a directory separator
1627 // instead of /, but we rely on / working already, so there's no reason to
1628 // support a Mac-only path
1629 // Amiga and Windows: : tries to go to root of drive
1630 if (strstr(path, ":"))
1631 return 1; // non-portable attempt to go to root of drive
1633 // Amiga: // is parent directory
1634 if (strstr(path, "//"))
1635 return 1; // non-portable attempt to go to parent directory
1637 // all: don't allow going to parent directory (../ or /../)
1638 if (strstr(path, ".."))
1639 return 2; // attempt to go outside the game directory
1641 // Windows and UNIXes: don't allow absolute paths
1643 return 2; // attempt to go outside the game directory
1645 // all: don't allow . characters before the last slash (it should only be used in filenames, not path elements), this catches all imaginable cases of ./, ../, .../, etc
1646 if (strchr(path, '.'))
1650 // gamedir is entirely path elements, so simply forbid . entirely
1653 if (strchr(path, '.') < strrchr(path, '/'))
1654 return 2; // possible attempt to go outside the game directory
1657 // all: forbid trailing slash on gamedir
1658 if (isgamedir && path[strlen(path)-1] == '/')
1661 // all: forbid leading dot on any filename for any reason
1662 if (strstr(path, "/."))
1663 return 2; // attempt to go outside the game directory
1665 // after all these checks we're pretty sure it's a / separated filename
1666 // and won't do much if any harm
1672 ====================
1675 Look for a file in the packages and in the filesystem
1677 Return the searchpath where the file was found (or NULL)
1678 and the file index in the package if relevant
1679 ====================
1681 static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet)
1683 searchpath_t *search;
1686 // search through the path, one element at a time
1687 for (search = fs_searchpaths;search;search = search->next)
1689 // is the element a pak file?
1692 int (*strcmp_funct) (const char* str1, const char* str2);
1693 int left, right, middle;
1696 strcmp_funct = pak->ignorecase ? strcasecmp : strcmp;
1698 // Look for the file (binary search)
1700 right = pak->numfiles - 1;
1701 while (left <= right)
1705 middle = (left + right) / 2;
1706 diff = strcmp_funct (pak->files[middle].name, name);
1711 if (fs_empty_files_in_pack_mark_deletions.integer && pak->files[middle].realsize == 0)
1713 // yes, but the first one is empty so we treat it as not being there
1714 if (!quiet && developer.integer >= 10)
1715 Con_Printf("FS_FindFile: %s is marked as deleted\n", name);
1722 if (!quiet && developer.integer >= 10)
1723 Con_Printf("FS_FindFile: %s in %s\n",
1724 pak->files[middle].name, pak->filename);
1731 // If we're too far in the list
1740 char netpath[MAX_OSPATH];
1741 dpsnprintf(netpath, sizeof(netpath), "%s%s", search->filename, name);
1742 if (FS_SysFileExists (netpath))
1744 if (!quiet && developer.integer >= 10)
1745 Con_Printf("FS_FindFile: %s\n", netpath);
1754 if (!quiet && developer.integer >= 10)
1755 Con_Printf("FS_FindFile: can't find %s\n", name);
1767 Look for a file in the search paths and open it in read-only mode
1770 qfile_t *FS_OpenReadFile (const char *filename, qboolean quiet, qboolean nonblocking)
1772 searchpath_t *search;
1775 search = FS_FindFile (filename, &pack_ind, quiet);
1781 // Found in the filesystem?
1784 char path [MAX_OSPATH];
1785 dpsnprintf (path, sizeof (path), "%s%s", search->filename, filename);
1786 return FS_SysOpen (path, "rb", nonblocking);
1789 // So, we found it in a package...
1790 return FS_OpenPackedFile (search->pack, pack_ind);
1795 =============================================================================
1797 MAIN PUBLIC FUNCTIONS
1799 =============================================================================
1803 ====================
1806 Open a file. The syntax is the same as fopen
1807 ====================
1809 qfile_t* FS_Open (const char* filepath, const char* mode, qboolean quiet, qboolean nonblocking)
1811 if (FS_CheckNastyPath(filepath, false))
1813 Con_Printf("FS_Open(\"%s\", \"%s\", %s): nasty filename rejected\n", filepath, mode, quiet ? "true" : "false");
1817 // If the file is opened in "write", "append", or "read/write" mode
1818 if (mode[0] == 'w' || mode[0] == 'a' || strchr (mode, '+'))
1820 char real_path [MAX_OSPATH];
1822 // Open the file on disk directly
1823 dpsnprintf (real_path, sizeof (real_path), "%s/%s", fs_gamedir, filepath);
1825 // Create directories up to the file
1826 FS_CreatePath (real_path);
1828 return FS_SysOpen (real_path, mode, nonblocking);
1830 // Else, we look at the various search paths and open the file in read-only mode
1832 return FS_OpenReadFile (filepath, quiet, nonblocking);
1837 ====================
1841 ====================
1843 int FS_Close (qfile_t* file)
1845 if (close (file->handle))
1850 qz_inflateEnd (&file->ztk->zstream);
1851 Mem_Free (file->ztk);
1860 ====================
1863 Write "datasize" bytes into a file
1864 ====================
1866 fs_offset_t FS_Write (qfile_t* file, const void* data, size_t datasize)
1870 // If necessary, seek to the exact file position we're supposed to be
1871 if (file->buff_ind != file->buff_len)
1872 lseek (file->handle, file->buff_ind - file->buff_len, SEEK_CUR);
1874 // Purge cached data
1877 // Write the buffer and update the position
1878 result = write (file->handle, data, (fs_offset_t)datasize);
1879 file->position = lseek (file->handle, 0, SEEK_CUR);
1880 if (file->real_length < file->position)
1881 file->real_length = file->position;
1891 ====================
1894 Read up to "buffersize" bytes from a file
1895 ====================
1897 fs_offset_t FS_Read (qfile_t* file, void* buffer, size_t buffersize)
1899 fs_offset_t count, done;
1901 if (buffersize == 0)
1904 // Get rid of the ungetc character
1905 if (file->ungetc != EOF)
1907 ((char*)buffer)[0] = file->ungetc;
1915 // First, we copy as many bytes as we can from "buff"
1916 if (file->buff_ind < file->buff_len)
1918 count = file->buff_len - file->buff_ind;
1919 count = ((fs_offset_t)buffersize > count) ? count : (fs_offset_t)buffersize;
1921 memcpy (buffer, &file->buff[file->buff_ind], count);
1922 file->buff_ind += count;
1924 buffersize -= count;
1925 if (buffersize == 0)
1929 // NOTE: at this point, the read buffer is always empty
1931 // If the file isn't compressed
1932 if (! (file->flags & QFILE_FLAG_DEFLATED))
1936 // We must take care to not read after the end of the file
1937 count = file->real_length - file->position;
1939 // If we have a lot of data to get, put them directly into "buffer"
1940 if (buffersize > sizeof (file->buff) / 2)
1942 if (count > (fs_offset_t)buffersize)
1943 count = (fs_offset_t)buffersize;
1944 lseek (file->handle, file->offset + file->position, SEEK_SET);
1945 nb = read (file->handle, &((unsigned char*)buffer)[done], count);
1949 file->position += nb;
1951 // Purge cached data
1957 if (count > (fs_offset_t)sizeof (file->buff))
1958 count = (fs_offset_t)sizeof (file->buff);
1959 lseek (file->handle, file->offset + file->position, SEEK_SET);
1960 nb = read (file->handle, file->buff, count);
1963 file->buff_len = nb;
1964 file->position += nb;
1966 // Copy the requested data in "buffer" (as much as we can)
1967 count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize;
1968 memcpy (&((unsigned char*)buffer)[done], file->buff, count);
1969 file->buff_ind = count;
1977 // If the file is compressed, it's more complicated...
1978 // We cycle through a few operations until we have read enough data
1979 while (buffersize > 0)
1981 ztoolkit_t *ztk = file->ztk;
1984 // NOTE: at this point, the read buffer is always empty
1986 // If "input" is also empty, we need to refill it
1987 if (ztk->in_ind == ztk->in_len)
1989 // If we are at the end of the file
1990 if (file->position == file->real_length)
1993 count = (fs_offset_t)(ztk->comp_length - ztk->in_position);
1994 if (count > (fs_offset_t)sizeof (ztk->input))
1995 count = (fs_offset_t)sizeof (ztk->input);
1996 lseek (file->handle, file->offset + (fs_offset_t)ztk->in_position, SEEK_SET);
1997 if (read (file->handle, ztk->input, count) != count)
1999 Con_Printf ("FS_Read: unexpected end of file\n");
2004 ztk->in_len = count;
2005 ztk->in_position += count;
2008 ztk->zstream.next_in = &ztk->input[ztk->in_ind];
2009 ztk->zstream.avail_in = (unsigned int)(ztk->in_len - ztk->in_ind);
2011 // Now that we are sure we have compressed data available, we need to determine
2012 // if it's better to inflate it in "file->buff" or directly in "buffer"
2014 // Inflate the data in "file->buff"
2015 if (buffersize < sizeof (file->buff) / 2)
2017 ztk->zstream.next_out = file->buff;
2018 ztk->zstream.avail_out = sizeof (file->buff);
2019 error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH);
2020 if (error != Z_OK && error != Z_STREAM_END)
2022 Con_Printf ("FS_Read: Can't inflate file\n");
2025 ztk->in_ind = ztk->in_len - ztk->zstream.avail_in;
2027 file->buff_len = (fs_offset_t)sizeof (file->buff) - ztk->zstream.avail_out;
2028 file->position += file->buff_len;
2030 // Copy the requested data in "buffer" (as much as we can)
2031 count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize;
2032 memcpy (&((unsigned char*)buffer)[done], file->buff, count);
2033 file->buff_ind = count;
2036 // Else, we inflate directly in "buffer"
2039 ztk->zstream.next_out = &((unsigned char*)buffer)[done];
2040 ztk->zstream.avail_out = (unsigned int)buffersize;
2041 error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH);
2042 if (error != Z_OK && error != Z_STREAM_END)
2044 Con_Printf ("FS_Read: Can't inflate file\n");
2047 ztk->in_ind = ztk->in_len - ztk->zstream.avail_in;
2049 // How much data did it inflate?
2050 count = (fs_offset_t)(buffersize - ztk->zstream.avail_out);
2051 file->position += count;
2053 // Purge cached data
2058 buffersize -= count;
2066 ====================
2069 Print a string into a file
2070 ====================
2072 int FS_Print (qfile_t* file, const char *msg)
2074 return (int)FS_Write (file, msg, strlen (msg));
2078 ====================
2081 Print a string into a file
2082 ====================
2084 int FS_Printf(qfile_t* file, const char* format, ...)
2089 va_start (args, format);
2090 result = FS_VPrintf (file, format, args);
2098 ====================
2101 Print a string into a file
2102 ====================
2104 int FS_VPrintf (qfile_t* file, const char* format, va_list ap)
2107 fs_offset_t buff_size = MAX_INPUTLINE;
2112 tempbuff = (char *)Mem_Alloc (tempmempool, buff_size);
2113 len = dpvsnprintf (tempbuff, buff_size, format, ap);
2114 if (len >= 0 && len < buff_size)
2116 Mem_Free (tempbuff);
2120 len = write (file->handle, tempbuff, len);
2121 Mem_Free (tempbuff);
2128 ====================
2131 Get the next character of a file
2132 ====================
2134 int FS_Getc (qfile_t* file)
2138 if (FS_Read (file, &c, 1) != 1)
2146 ====================
2149 Put a character back into the read buffer (only supports one character!)
2150 ====================
2152 int FS_UnGetc (qfile_t* file, unsigned char c)
2154 // If there's already a character waiting to be read
2155 if (file->ungetc != EOF)
2164 ====================
2167 Move the position index in a file
2168 ====================
2170 int FS_Seek (qfile_t* file, fs_offset_t offset, int whence)
2173 unsigned char* buffer;
2174 fs_offset_t buffersize;
2176 // Compute the file offset
2180 offset += file->position - file->buff_len + file->buff_ind;
2187 offset += file->real_length;
2193 if (offset < 0 || offset > file->real_length)
2196 // If we have the data in our read buffer, we don't need to actually seek
2197 if (file->position - file->buff_len <= offset && offset <= file->position)
2199 file->buff_ind = offset + file->buff_len - file->position;
2203 // Purge cached data
2206 // Unpacked or uncompressed files can seek directly
2207 if (! (file->flags & QFILE_FLAG_DEFLATED))
2209 if (lseek (file->handle, file->offset + offset, SEEK_SET) == -1)
2211 file->position = offset;
2215 // Seeking in compressed files is more a hack than anything else,
2216 // but we need to support it, so here we go.
2219 // If we have to go back in the file, we need to restart from the beginning
2220 if (offset <= file->position)
2224 ztk->in_position = 0;
2226 lseek (file->handle, file->offset, SEEK_SET);
2228 // Reset the Zlib stream
2229 ztk->zstream.next_in = ztk->input;
2230 ztk->zstream.avail_in = 0;
2231 qz_inflateReset (&ztk->zstream);
2234 // We need a big buffer to force inflating into it directly
2235 buffersize = 2 * sizeof (file->buff);
2236 buffer = (unsigned char *)Mem_Alloc (tempmempool, buffersize);
2238 // Skip all data until we reach the requested offset
2239 while (offset > file->position)
2241 fs_offset_t diff = offset - file->position;
2242 fs_offset_t count, len;
2244 count = (diff > buffersize) ? buffersize : diff;
2245 len = FS_Read (file, buffer, count);
2259 ====================
2262 Give the current position in a file
2263 ====================
2265 fs_offset_t FS_Tell (qfile_t* file)
2267 return file->position - file->buff_len + file->buff_ind;
2272 ====================
2275 Give the total size of a file
2276 ====================
2278 fs_offset_t FS_FileSize (qfile_t* file)
2280 return file->real_length;
2285 ====================
2288 Erases any buffered input or output data
2289 ====================
2291 void FS_Purge (qfile_t* file)
2303 Filename are relative to the quake directory.
2304 Always appends a 0 byte.
2307 unsigned char *FS_LoadFile (const char *path, mempool_t *pool, qboolean quiet, fs_offset_t *filesizepointer)
2310 unsigned char *buf = NULL;
2311 fs_offset_t filesize = 0;
2313 file = FS_Open (path, "rb", quiet, false);
2316 filesize = file->real_length;
2317 buf = (unsigned char *)Mem_Alloc (pool, filesize + 1);
2318 buf[filesize] = '\0';
2319 FS_Read (file, buf, filesize);
2321 if (developer_loadfile.integer)
2322 Con_Printf("loaded file \"%s\" (%u bytes)\n", path, (unsigned int)filesize);
2325 if (filesizepointer)
2326 *filesizepointer = filesize;
2335 The filename will be prefixed by the current game directory
2338 qboolean FS_WriteFile (const char *filename, void *data, fs_offset_t len)
2342 file = FS_Open (filename, "wb", false, false);
2345 Con_Printf("FS_WriteFile: failed on %s\n", filename);
2349 Con_DPrintf("FS_WriteFile: %s (%u bytes)\n", filename, (unsigned int)len);
2350 FS_Write (file, data, len);
2357 =============================================================================
2359 OTHERS PUBLIC FUNCTIONS
2361 =============================================================================
2369 void FS_StripExtension (const char *in, char *out, size_t size_out)
2377 while ((currentchar = *in) && size_out > 1)
2379 if (currentchar == '.')
2381 else if (currentchar == '/' || currentchar == '\\' || currentchar == ':')
2383 *out++ = currentchar;
2399 void FS_DefaultExtension (char *path, const char *extension, size_t size_path)
2403 // if path doesn't have a .EXT, append extension
2404 // (extension should include the .)
2405 src = path + strlen(path) - 1;
2407 while (*src != '/' && src != path)
2410 return; // it has an extension
2414 strlcat (path, extension, size_path);
2422 Look for a file in the packages and in the filesystem
2425 int FS_FileType (const char *filename)
2427 searchpath_t *search;
2428 char fullpath[MAX_QPATH];
2430 search = FS_FindFile (filename, NULL, true);
2432 return FS_FILETYPE_NONE;
2435 return FS_FILETYPE_FILE; // TODO can't check directories in paks yet, maybe later
2437 dpsnprintf(fullpath, sizeof(fullpath), "%s%s", search->filename, filename);
2438 return FS_SysFileType(fullpath);
2446 Look for a file in the packages and in the filesystem
2449 qboolean FS_FileExists (const char *filename)
2451 return (FS_FindFile (filename, NULL, true) != NULL);
2459 Look for a file in the filesystem only
2462 int FS_SysFileType (const char *path)
2465 DWORD result = GetFileAttributes(path);
2467 if(result == INVALID_FILE_ATTRIBUTES)
2468 return FS_FILETYPE_NONE;
2470 if(result & FILE_ATTRIBUTE_DIRECTORY)
2471 return FS_FILETYPE_DIRECTORY;
2473 return FS_FILETYPE_FILE;
2477 if (stat (path,&buf) == -1)
2478 return FS_FILETYPE_NONE;
2480 if(S_ISDIR(buf.st_mode))
2481 return FS_FILETYPE_DIRECTORY;
2483 return FS_FILETYPE_FILE;
2487 qboolean FS_SysFileExists (const char *path)
2489 return FS_SysFileType (path) != FS_FILETYPE_NONE;
2492 void FS_mkdir (const char *path)
2505 Allocate and fill a search structure with information on matching filenames.
2508 fssearch_t *FS_Search(const char *pattern, int caseinsensitive, int quiet)
2511 searchpath_t *searchpath;
2513 int i, basepathlength, numfiles, numchars, resultlistindex, dirlistindex;
2514 stringlist_t resultlist;
2515 stringlist_t dirlist;
2516 const char *slash, *backslash, *colon, *separator;
2518 char temp[MAX_OSPATH];
2520 for (i = 0;pattern[i] == '.' || pattern[i] == ':' || pattern[i] == '/' || pattern[i] == '\\';i++)
2525 Con_Printf("Don't use punctuation at the beginning of a search pattern!\n");
2529 stringlistinit(&resultlist);
2530 stringlistinit(&dirlist);
2532 slash = strrchr(pattern, '/');
2533 backslash = strrchr(pattern, '\\');
2534 colon = strrchr(pattern, ':');
2535 separator = max(slash, backslash);
2536 separator = max(separator, colon);
2537 basepathlength = separator ? (separator + 1 - pattern) : 0;
2538 basepath = (char *)Mem_Alloc (tempmempool, basepathlength + 1);
2540 memcpy(basepath, pattern, basepathlength);
2541 basepath[basepathlength] = 0;
2543 // search through the path, one element at a time
2544 for (searchpath = fs_searchpaths;searchpath;searchpath = searchpath->next)
2546 // is the element a pak file?
2547 if (searchpath->pack)
2549 // look through all the pak file elements
2550 pak = searchpath->pack;
2551 for (i = 0;i < pak->numfiles;i++)
2553 strlcpy(temp, pak->files[i].name, sizeof(temp));
2556 if (matchpattern(temp, (char *)pattern, true))
2558 for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++)
2559 if (!strcmp(resultlist.strings[resultlistindex], temp))
2561 if (resultlistindex == resultlist.numstrings)
2563 stringlistappend(&resultlist, temp);
2564 if (!quiet && developer_loading.integer)
2565 Con_Printf("SearchPackFile: %s : %s\n", pak->filename, temp);
2568 // strip off one path element at a time until empty
2569 // this way directories are added to the listing if they match the pattern
2570 slash = strrchr(temp, '/');
2571 backslash = strrchr(temp, '\\');
2572 colon = strrchr(temp, ':');
2574 if (separator < slash)
2576 if (separator < backslash)
2577 separator = backslash;
2578 if (separator < colon)
2580 *((char *)separator) = 0;
2586 stringlist_t matchedSet, foundSet;
2587 const char *start = pattern;
2589 stringlistinit(&matchedSet);
2590 stringlistinit(&foundSet);
2591 // add a first entry to the set
2592 stringlistappend(&matchedSet, "");
2593 // iterate through pattern's path
2596 const char *asterisk, *wildcard, *nextseparator, *prevseparator;
2597 char subpath[MAX_OSPATH];
2598 char subpattern[MAX_OSPATH];
2600 // find the next wildcard
2601 wildcard = strchr(start, '?');
2602 asterisk = strchr(start, '*');
2603 if (asterisk && (!wildcard || asterisk < wildcard))
2605 wildcard = asterisk;
2610 nextseparator = strchr( wildcard, '/' );
2614 nextseparator = NULL;
2617 if( !nextseparator ) {
2618 nextseparator = start + strlen( start );
2621 // prevseparator points past the '/' right before the wildcard and nextseparator at the one following it (or at the end of the string)
2622 // copy everything up except nextseperator
2623 strlcpy(subpattern, pattern, min(sizeof(subpattern), (size_t) (nextseparator - pattern + 1)));
2624 // find the last '/' before the wildcard
2625 prevseparator = strrchr( subpattern, '/' );
2627 prevseparator = subpattern;
2630 // copy everything from start to the previous including the '/' (before the wildcard)
2631 // everything up to start is already included in the path of matchedSet's entries
2632 strlcpy(subpath, start, min(sizeof(subpath), (size_t) ((prevseparator - subpattern) - (start - pattern) + 1)));
2634 // for each entry in matchedSet try to open the subdirectories specified in subpath
2635 for( dirlistindex = 0 ; dirlistindex < matchedSet.numstrings ; dirlistindex++ ) {
2636 strlcpy( temp, matchedSet.strings[ dirlistindex ], sizeof(temp) );
2637 strlcat( temp, subpath, sizeof(temp) );
2638 listdirectory( &foundSet, searchpath->filename, temp );
2640 if( dirlistindex == 0 ) {
2643 // reset the current result set
2644 stringlistfreecontents( &matchedSet );
2645 // match against the pattern
2646 for( dirlistindex = 0 ; dirlistindex < foundSet.numstrings ; dirlistindex++ ) {
2647 const char *direntry = foundSet.strings[ dirlistindex ];
2648 if (matchpattern(direntry, subpattern, true)) {
2649 stringlistappend( &matchedSet, direntry );
2652 stringlistfreecontents( &foundSet );
2654 start = nextseparator;
2657 for (dirlistindex = 0;dirlistindex < matchedSet.numstrings;dirlistindex++)
2659 const char *temp = matchedSet.strings[dirlistindex];
2660 if (matchpattern(temp, (char *)pattern, true))
2662 for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++)
2663 if (!strcmp(resultlist.strings[resultlistindex], temp))
2665 if (resultlistindex == resultlist.numstrings)
2667 stringlistappend(&resultlist, temp);
2668 if (!quiet && developer_loading.integer)
2669 Con_Printf("SearchDirFile: %s\n", temp);
2673 stringlistfreecontents( &matchedSet );
2677 if (resultlist.numstrings)
2679 stringlistsort(&resultlist);
2680 numfiles = resultlist.numstrings;
2682 for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++)
2683 numchars += (int)strlen(resultlist.strings[resultlistindex]) + 1;
2684 search = (fssearch_t *)Z_Malloc(sizeof(fssearch_t) + numchars + numfiles * sizeof(char *));
2685 search->filenames = (char **)((char *)search + sizeof(fssearch_t));
2686 search->filenamesbuffer = (char *)((char *)search + sizeof(fssearch_t) + numfiles * sizeof(char *));
2687 search->numfilenames = (int)numfiles;
2690 for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++)
2693 search->filenames[numfiles] = search->filenamesbuffer + numchars;
2694 textlen = strlen(resultlist.strings[resultlistindex]) + 1;
2695 memcpy(search->filenames[numfiles], resultlist.strings[resultlistindex], textlen);
2697 numchars += (int)textlen;
2700 stringlistfreecontents(&resultlist);
2706 void FS_FreeSearch(fssearch_t *search)
2711 extern int con_linewidth;
2712 int FS_ListDirectory(const char *pattern, int oneperline)
2721 char linebuf[MAX_INPUTLINE];
2723 search = FS_Search(pattern, true, true);
2726 numfiles = search->numfilenames;
2729 // FIXME: the names could be added to one column list and then
2730 // gradually shifted into the next column if they fit, and then the
2731 // next to make a compact variable width listing but it's a lot more
2733 // find width for columns
2735 for (i = 0;i < numfiles;i++)
2737 l = (int)strlen(search->filenames[i]);
2738 if (columnwidth < l)
2741 // count the spacing character
2743 // calculate number of columns
2744 numcolumns = con_linewidth / columnwidth;
2745 // don't bother with the column printing if it's only one column
2746 if (numcolumns >= 2)
2748 numlines = (numfiles + numcolumns - 1) / numcolumns;
2749 for (i = 0;i < numlines;i++)
2752 for (k = 0;k < numcolumns;k++)
2754 l = i * numcolumns + k;
2757 name = search->filenames[l];
2758 for (j = 0;name[j] && linebufpos + 1 < (int)sizeof(linebuf);j++)
2759 linebuf[linebufpos++] = name[j];
2760 // space out name unless it's the last on the line
2761 if (k + 1 < numcolumns && l + 1 < numfiles)
2762 for (;j < columnwidth && linebufpos + 1 < (int)sizeof(linebuf);j++)
2763 linebuf[linebufpos++] = ' ';
2766 linebuf[linebufpos] = 0;
2767 Con_Printf("%s\n", linebuf);
2774 for (i = 0;i < numfiles;i++)
2775 Con_Printf("%s\n", search->filenames[i]);
2776 FS_FreeSearch(search);
2777 return (int)numfiles;
2780 static void FS_ListDirectoryCmd (const char* cmdname, int oneperline)
2782 const char *pattern;
2785 Con_Printf("usage:\n%s [path/pattern]\n", cmdname);
2788 if (Cmd_Argc() == 2)
2789 pattern = Cmd_Argv(1);
2792 if (!FS_ListDirectory(pattern, oneperline))
2793 Con_Print("No files found.\n");
2798 FS_ListDirectoryCmd("dir", true);
2803 FS_ListDirectoryCmd("ls", false);
2806 const char *FS_WhichPack(const char *filename)
2809 searchpath_t *sp = FS_FindFile(filename, &index, true);
2811 return sp->pack->filename;
2817 ====================
2818 FS_IsRegisteredQuakePack
2820 Look for a proof of purchase file file in the requested package
2822 If it is found, this file should NOT be downloaded.
2823 ====================
2825 qboolean FS_IsRegisteredQuakePack(const char *name)
2827 searchpath_t *search;
2830 // search through the path, one element at a time
2831 for (search = fs_searchpaths;search;search = search->next)
2833 if (search->pack && !strcasecmp(FS_FileWithoutPath(search->filename), name))
2835 int (*strcmp_funct) (const char* str1, const char* str2);
2836 int left, right, middle;
2839 strcmp_funct = pak->ignorecase ? strcasecmp : strcmp;
2841 // Look for the file (binary search)
2843 right = pak->numfiles - 1;
2844 while (left <= right)
2848 middle = (left + right) / 2;
2849 diff = !strcmp_funct (pak->files[middle].name, "gfx/pop.lmp");
2855 // If we're too far in the list
2862 // we found the requested pack but it is not registered quake
2870 int FS_CRCFile(const char *filename, size_t *filesizepointer)
2873 unsigned char *filedata;
2874 fs_offset_t filesize;
2875 if (filesizepointer)
2876 *filesizepointer = 0;
2877 if (!filename || !*filename)
2879 filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
2882 if (filesizepointer)
2883 *filesizepointer = filesize;
2884 crc = CRC_Block(filedata, filesize);