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
25 // on UNIX platforms we need to define this so that video saving does not cause a SIGFSZ (file size) signal when a video clip exceeds 2GB
26 #define _FILE_OFFSET_BITS 64
38 # include <sys/stat.h>
44 // Win32 requires us to add O_BINARY, but the other OSes don't have it
49 // In case the system doesn't support the O_NONBLOCK flag
57 All of Quake's data access is through a hierchal file system, but the contents
58 of the file system can be transparently merged from several sources.
60 The "base directory" is the path to the directory holding the quake.exe and
61 all game directories. The sys_* files pass this to host_init in
62 quakeparms_t->basedir. This can be overridden with the "-basedir" command
63 line parm to allow code debugging in a different directory. The base
64 directory is only used during filesystem initialization.
66 The "game directory" is the first tree on the search path and directory that
67 all generated files (savegames, screenshots, demos, config files) will be
68 saved to. This can be overridden with the "-game" command line parameter.
69 The game directory can never be changed while quake is executing. This is a
70 precaution against having a malicious server instruct clients to write files
71 over areas they shouldn't.
77 =============================================================================
81 =============================================================================
84 // Magic numbers of a ZIP file (big-endian format)
85 #define ZIP_DATA_HEADER 0x504B0304 // "PK\3\4"
86 #define ZIP_CDIR_HEADER 0x504B0102 // "PK\1\2"
87 #define ZIP_END_HEADER 0x504B0506 // "PK\5\6"
89 // Other constants for ZIP files
90 #define ZIP_MAX_COMMENTS_SIZE ((unsigned short)0xFFFF)
91 #define ZIP_END_CDIR_SIZE 22
92 #define ZIP_CDIR_CHUNK_BASE_SIZE 46
93 #define ZIP_LOCAL_CHUNK_BASE_SIZE 30
95 // Zlib constants (from zlib.h)
96 #define Z_SYNC_FLUSH 2
99 #define Z_STREAM_END 1
100 #define ZLIB_VERSION "1.2.3"
102 // Uncomment the following line if the zlib DLL you have still uses
103 // the 1.1.x series calling convention on Win32 (WINAPI)
104 //#define ZLIB_USES_WINAPI
108 =============================================================================
112 =============================================================================
115 // Zlib stream (from zlib.h)
116 // Warning: some pointers we don't use directly have
117 // been cast to "void*" for a matter of simplicity
120 unsigned char *next_in; // next input byte
121 unsigned int avail_in; // number of bytes available at next_in
122 unsigned long total_in; // total nb of input bytes read so far
124 unsigned char *next_out; // next output byte should be put there
125 unsigned int avail_out; // remaining free space at next_out
126 unsigned long total_out; // total nb of bytes output so far
128 char *msg; // last error message, NULL if no error
129 void *state; // not visible by applications
131 void *zalloc; // used to allocate the internal state
132 void *zfree; // used to free the internal state
133 void *opaque; // private data object passed to zalloc and zfree
135 int data_type; // best guess about the data type: ascii or binary
136 unsigned long adler; // adler32 value of the uncompressed data
137 unsigned long reserved; // reserved for future use
141 // inside a package (PAK or PK3)
142 #define QFILE_FLAG_PACKED (1 << 0)
143 // file is compressed using the deflate algorithm (PK3 only)
144 #define QFILE_FLAG_DEFLATED (1 << 1)
146 #define FILE_BUFF_SIZE 2048
150 size_t comp_length; // length of the compressed file
151 size_t in_ind, in_len; // input buffer current index and length
152 size_t in_position; // position in the compressed file
153 unsigned char input [FILE_BUFF_SIZE];
159 int handle; // file descriptor
160 fs_offset_t real_length; // uncompressed file size (for files opened in "read" mode)
161 fs_offset_t position; // current position in the file
162 fs_offset_t offset; // offset into the package (0 if external file)
163 int ungetc; // single stored character from ungetc, cleared to EOF when read
166 fs_offset_t buff_ind, buff_len; // buffer current index and length
167 unsigned char buff [FILE_BUFF_SIZE];
174 // ------ PK3 files on disk ------ //
176 // You can get the complete ZIP format description from PKWARE website
178 typedef struct pk3_endOfCentralDir_s
180 unsigned int signature;
181 unsigned short disknum;
182 unsigned short cdir_disknum; // number of the disk with the start of the central directory
183 unsigned short localentries; // number of entries in the central directory on this disk
184 unsigned short nbentries; // total number of entries in the central directory on this disk
185 unsigned int cdir_size; // size of the central directory
186 unsigned int cdir_offset; // with respect to the starting disk number
187 unsigned short comment_size;
188 } pk3_endOfCentralDir_t;
191 // ------ PAK files on disk ------ //
192 typedef struct dpackfile_s
195 int filepos, filelen;
198 typedef struct dpackheader_s
206 // Packages in memory
207 // the offset in packfile_t is the true contents offset
208 #define PACKFILE_FLAG_TRUEOFFS (1 << 0)
209 // file compressed using the deflate algorithm
210 #define PACKFILE_FLAG_DEFLATED (1 << 1)
212 typedef struct packfile_s
214 char name [MAX_QPATH];
217 fs_offset_t packsize; // size in the package
218 fs_offset_t realsize; // real file size (uncompressed)
221 typedef struct pack_s
223 char filename [MAX_OSPATH];
225 int ignorecase; // PK3 ignores case
231 // Search paths for files (including packages)
232 typedef struct searchpath_s
234 // only one of filename / pack will be used
235 char filename[MAX_OSPATH];
237 struct searchpath_s *next;
242 =============================================================================
246 =============================================================================
252 static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet);
253 static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack,
254 fs_offset_t offset, fs_offset_t packsize,
255 fs_offset_t realsize, int flags);
259 =============================================================================
263 =============================================================================
266 mempool_t *fs_mempool;
268 searchpath_t *fs_searchpaths = NULL;
270 #define MAX_FILES_IN_PACK 65536
272 char fs_gamedir[MAX_OSPATH];
273 char fs_basedir[MAX_OSPATH];
275 // list of active game directories (empty if not running a mod)
276 #define MAX_GAMEDIRS 16
277 int fs_numgamedirs = 0;
278 char fs_gamedirs[MAX_GAMEDIRS][MAX_QPATH];
280 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)"};
284 =============================================================================
286 PRIVATE FUNCTIONS - PK3 HANDLING
288 =============================================================================
291 // Functions exported from zlib
292 #if defined(WIN32) && defined(ZLIB_USES_WINAPI)
293 # define ZEXPORT WINAPI
298 static int (ZEXPORT *qz_inflate) (z_stream* strm, int flush);
299 static int (ZEXPORT *qz_inflateEnd) (z_stream* strm);
300 static int (ZEXPORT *qz_inflateInit2_) (z_stream* strm, int windowBits, const char *version, int stream_size);
301 static int (ZEXPORT *qz_inflateReset) (z_stream* strm);
303 #define qz_inflateInit2(strm, windowBits) \
304 qz_inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
306 static dllfunction_t zlibfuncs[] =
308 {"inflate", (void **) &qz_inflate},
309 {"inflateEnd", (void **) &qz_inflateEnd},
310 {"inflateInit2_", (void **) &qz_inflateInit2_},
311 {"inflateReset", (void **) &qz_inflateReset},
315 // Handle for Zlib DLL
316 static dllhandle_t zlib_dll = NULL;
326 void PK3_CloseLibrary (void)
328 Sys_UnloadLibrary (&zlib_dll);
336 Try to load the Zlib DLL
339 qboolean PK3_OpenLibrary (void)
341 const char* dllnames [] =
346 # ifdef ZLIB_USES_WINAPI
352 #elif defined(MACOSX)
366 if (! Sys_LoadLibrary (dllnames, &zlib_dll, zlibfuncs))
368 Con_Printf ("Compressed files support disabled\n");
372 Con_Printf ("Compressed files support enabled\n");
379 PK3_GetEndOfCentralDir
381 Extract the end of the central directory from a PK3 package
384 qboolean PK3_GetEndOfCentralDir (const char *packfile, int packhandle, pk3_endOfCentralDir_t *eocd)
386 fs_offset_t filesize, maxsize;
387 unsigned char *buffer, *ptr;
390 // Get the package size
391 filesize = lseek (packhandle, 0, SEEK_END);
392 if (filesize < ZIP_END_CDIR_SIZE)
395 // Load the end of the file in memory
396 if (filesize < ZIP_MAX_COMMENTS_SIZE + ZIP_END_CDIR_SIZE)
399 maxsize = ZIP_MAX_COMMENTS_SIZE + ZIP_END_CDIR_SIZE;
400 buffer = (unsigned char *)Mem_Alloc (tempmempool, maxsize);
401 lseek (packhandle, filesize - maxsize, SEEK_SET);
402 if (read (packhandle, buffer, maxsize) != (fs_offset_t) maxsize)
408 // Look for the end of central dir signature around the end of the file
409 maxsize -= ZIP_END_CDIR_SIZE;
410 ptr = &buffer[maxsize];
412 while (BuffBigLong (ptr) != ZIP_END_HEADER)
424 memcpy (eocd, ptr, ZIP_END_CDIR_SIZE);
425 eocd->signature = LittleLong (eocd->signature);
426 eocd->disknum = LittleShort (eocd->disknum);
427 eocd->cdir_disknum = LittleShort (eocd->cdir_disknum);
428 eocd->localentries = LittleShort (eocd->localentries);
429 eocd->nbentries = LittleShort (eocd->nbentries);
430 eocd->cdir_size = LittleLong (eocd->cdir_size);
431 eocd->cdir_offset = LittleLong (eocd->cdir_offset);
432 eocd->comment_size = LittleShort (eocd->comment_size);
444 Extract the file list from a PK3 file
447 int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd)
449 unsigned char *central_dir, *ptr;
451 fs_offset_t remaining;
453 // Load the central directory in memory
454 central_dir = (unsigned char *)Mem_Alloc (tempmempool, eocd->cdir_size);
455 lseek (pack->handle, eocd->cdir_offset, SEEK_SET);
456 read (pack->handle, central_dir, eocd->cdir_size);
458 // Extract the files properties
459 // The parsing is done "by hand" because some fields have variable sizes and
460 // the constant part isn't 4-bytes aligned, which makes the use of structs difficult
461 remaining = eocd->cdir_size;
464 for (ind = 0; ind < eocd->nbentries; ind++)
466 fs_offset_t namesize, count;
468 // Checking the remaining size
469 if (remaining < ZIP_CDIR_CHUNK_BASE_SIZE)
471 Mem_Free (central_dir);
474 remaining -= ZIP_CDIR_CHUNK_BASE_SIZE;
477 if (BuffBigLong (ptr) != ZIP_CDIR_HEADER)
479 Mem_Free (central_dir);
483 namesize = BuffLittleShort (&ptr[28]); // filename length
485 // Check encryption, compression, and attributes
486 // 1st uint8 : general purpose bit flag
487 // Check bits 0 (encryption), 3 (data descriptor after the file), and 5 (compressed patched data (?))
488 // 2nd uint8 : external file attributes
489 // Check bits 3 (file is a directory) and 5 (file is a volume (?))
490 if ((ptr[8] & 0x29) == 0 && (ptr[38] & 0x18) == 0)
492 // Still enough bytes for the name?
493 if (remaining < namesize || namesize >= (int)sizeof (*pack->files))
495 Mem_Free (central_dir);
499 // WinZip doesn't use the "directory" attribute, so we need to check the name directly
500 if (ptr[ZIP_CDIR_CHUNK_BASE_SIZE + namesize - 1] != '/')
502 char filename [sizeof (pack->files[0].name)];
503 fs_offset_t offset, packsize, realsize;
506 // Extract the name (strip it if necessary)
507 namesize = min(namesize, (int)sizeof (filename) - 1);
508 memcpy (filename, &ptr[ZIP_CDIR_CHUNK_BASE_SIZE], namesize);
509 filename[namesize] = '\0';
511 if (BuffLittleShort (&ptr[10]))
512 flags = PACKFILE_FLAG_DEFLATED;
515 offset = BuffLittleLong (&ptr[42]);
516 packsize = BuffLittleLong (&ptr[20]);
517 realsize = BuffLittleLong (&ptr[24]);
518 FS_AddFileToPack (filename, pack, offset, packsize, realsize, flags);
522 // Skip the name, additionnal field, and comment
523 // 1er uint16 : extra field length
524 // 2eme uint16 : file comment length
525 count = namesize + BuffLittleShort (&ptr[30]) + BuffLittleShort (&ptr[32]);
526 ptr += ZIP_CDIR_CHUNK_BASE_SIZE + count;
530 // If the package is empty, central_dir is NULL here
531 if (central_dir != NULL)
532 Mem_Free (central_dir);
533 return pack->numfiles;
541 Create a package entry associated with a PK3 file
544 pack_t *FS_LoadPackPK3 (const char *packfile)
547 pk3_endOfCentralDir_t eocd;
551 packhandle = open (packfile, O_RDONLY | O_BINARY);
555 if (! PK3_GetEndOfCentralDir (packfile, packhandle, &eocd))
557 Con_Printf ("%s is not a PK3 file\n", packfile);
562 // Multi-volume ZIP archives are NOT allowed
563 if (eocd.disknum != 0 || eocd.cdir_disknum != 0)
565 Con_Printf ("%s is a multi-volume ZIP archive\n", packfile);
570 // We only need to do this test if MAX_FILES_IN_PACK is lesser than 65535
571 // since eocd.nbentries is an unsigned 16 bits integer
572 #if MAX_FILES_IN_PACK < 65535
573 if (eocd.nbentries > MAX_FILES_IN_PACK)
575 Con_Printf ("%s contains too many files (%hu)\n", packfile, eocd.nbentries);
581 // Create a package structure in memory
582 pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t));
583 pack->ignorecase = true; // PK3 ignores case
584 strlcpy (pack->filename, packfile, sizeof (pack->filename));
585 pack->handle = packhandle;
586 pack->numfiles = eocd.nbentries;
587 pack->files = (packfile_t *)Mem_Alloc(fs_mempool, eocd.nbentries * sizeof(packfile_t));
589 real_nb_files = PK3_BuildFileList (pack, &eocd);
590 if (real_nb_files < 0)
592 Con_Printf ("%s is not a valid PK3 file\n", packfile);
598 Con_Printf("Added packfile %s (%i files)\n", packfile, real_nb_files);
605 PK3_GetTrueFileOffset
607 Find where the true file data offset is
610 qboolean PK3_GetTrueFileOffset (packfile_t *pfile, pack_t *pack)
612 unsigned char buffer [ZIP_LOCAL_CHUNK_BASE_SIZE];
616 if (pfile->flags & PACKFILE_FLAG_TRUEOFFS)
619 // Load the local file description
620 lseek (pack->handle, pfile->offset, SEEK_SET);
621 count = read (pack->handle, buffer, ZIP_LOCAL_CHUNK_BASE_SIZE);
622 if (count != ZIP_LOCAL_CHUNK_BASE_SIZE || BuffBigLong (buffer) != ZIP_DATA_HEADER)
624 Con_Printf ("Can't retrieve file %s in package %s\n", pfile->name, pack->filename);
628 // Skip name and extra field
629 pfile->offset += BuffLittleShort (&buffer[26]) + BuffLittleShort (&buffer[28]) + ZIP_LOCAL_CHUNK_BASE_SIZE;
631 pfile->flags |= PACKFILE_FLAG_TRUEOFFS;
637 =============================================================================
639 OTHER PRIVATE FUNCTIONS
641 =============================================================================
649 Add a file to the list of files contained into a package
652 static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack,
653 fs_offset_t offset, fs_offset_t packsize,
654 fs_offset_t realsize, int flags)
656 int (*strcmp_funct) (const char* str1, const char* str2);
657 int left, right, middle;
660 strcmp_funct = pack->ignorecase ? strcasecmp : strcmp;
662 // Look for the slot we should put that file into (binary search)
664 right = pack->numfiles - 1;
665 while (left <= right)
669 middle = (left + right) / 2;
670 diff = strcmp_funct (pack->files[middle].name, name);
672 // If we found the file, there's a problem
674 Con_Printf ("Package %s contains the file %s several times\n", pack->filename, name);
676 // If we're too far in the list
683 // We have to move the right of the list by one slot to free the one we need
684 pfile = &pack->files[left];
685 memmove (pfile + 1, pfile, (pack->numfiles - left) * sizeof (*pfile));
688 strlcpy (pfile->name, name, sizeof (pfile->name));
689 pfile->offset = offset;
690 pfile->packsize = packsize;
691 pfile->realsize = realsize;
692 pfile->flags = flags;
702 Only used for FS_Open.
705 void FS_CreatePath (char *path)
709 for (ofs = path+1 ; *ofs ; ofs++)
711 if (*ofs == '/' || *ofs == '\\')
713 // create the directory
729 void FS_Path_f (void)
733 Con_Print("Current search path:\n");
734 for (s=fs_searchpaths ; s ; s=s->next)
737 Con_Printf("%s (%i files)\n", s->pack->filename, s->pack->numfiles);
739 Con_Printf("%s\n", s->filename);
748 Takes an explicit (not game tree related) path to a pak file.
750 Loads the header and directory, adding the files at the beginning
751 of the list so they override previous pack files.
754 pack_t *FS_LoadPackPAK (const char *packfile)
756 dpackheader_t header;
762 packhandle = open (packfile, O_RDONLY | O_BINARY);
765 read (packhandle, (void *)&header, sizeof(header));
766 if (memcmp(header.id, "PACK", 4))
768 Con_Printf ("%s is not a packfile\n", packfile);
772 header.dirofs = LittleLong (header.dirofs);
773 header.dirlen = LittleLong (header.dirlen);
775 if (header.dirlen % sizeof(dpackfile_t))
777 Con_Printf ("%s has an invalid directory size\n", packfile);
782 numpackfiles = header.dirlen / sizeof(dpackfile_t);
784 if (numpackfiles > MAX_FILES_IN_PACK)
786 Con_Printf ("%s has %i files\n", packfile, numpackfiles);
791 info = (dpackfile_t *)Mem_Alloc(tempmempool, sizeof(*info) * numpackfiles);
792 lseek (packhandle, header.dirofs, SEEK_SET);
793 if(header.dirlen != read (packhandle, (void *)info, header.dirlen))
795 Con_Printf("%s is an incomplete PAK, not loading\n", packfile);
801 pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t));
802 pack->ignorecase = false; // PAK is case sensitive
803 strlcpy (pack->filename, packfile, sizeof (pack->filename));
804 pack->handle = packhandle;
806 pack->files = (packfile_t *)Mem_Alloc(fs_mempool, numpackfiles * sizeof(packfile_t));
808 // parse the directory
809 for (i = 0;i < numpackfiles;i++)
811 fs_offset_t offset = LittleLong (info[i].filepos);
812 fs_offset_t size = LittleLong (info[i].filelen);
814 FS_AddFileToPack (info[i].name, pack, offset, size, size, PACKFILE_FLAG_TRUEOFFS);
819 Con_Printf("Added packfile %s (%i files)\n", packfile, numpackfiles);
827 Adds the given pack to the search path.
828 The pack type is autodetected by the file extension.
830 Returns true if the file was successfully added to the
831 search path or if it was already included.
833 If keep_plain_dirs is set, the pack will be added AFTER the first sequence of
837 static qboolean FS_AddPack_Fullpath(const char *pakfile, qboolean *already_loaded, qboolean keep_plain_dirs)
839 searchpath_t *search;
841 const char *ext = FS_FileExtension(pakfile);
843 for(search = fs_searchpaths; search; search = search->next)
845 if(search->pack && !strcasecmp(search->pack->filename, pakfile))
848 *already_loaded = true;
849 return true; // already loaded
854 *already_loaded = false;
856 if(!strcasecmp(ext, "pak"))
857 pak = FS_LoadPackPAK (pakfile);
858 else if(!strcasecmp(ext, "pk3"))
859 pak = FS_LoadPackPK3 (pakfile);
861 Con_Printf("\"%s\" does not have a pack extension\n", pakfile);
867 // find the first item whose next one is a pack or NULL
868 searchpath_t *insertion_point = 0;
869 if(fs_searchpaths && !fs_searchpaths->pack)
871 insertion_point = fs_searchpaths;
874 if(!insertion_point->next)
876 if(insertion_point->next->pack)
878 insertion_point = insertion_point->next;
881 // If insertion_point is NULL, this means that either there is no
882 // item in the list yet, or that the very first item is a pack. In
883 // that case, we want to insert at the beginning...
886 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
888 search->next = fs_searchpaths;
889 fs_searchpaths = search;
892 // otherwise we want to append directly after insertion_point.
894 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
896 search->next = insertion_point->next;
897 insertion_point->next = search;
902 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
904 search->next = fs_searchpaths;
905 fs_searchpaths = search;
911 Con_Printf("unable to load pak \"%s\"\n", pakfile);
921 Adds the given pack to the search path and searches for it in the game path.
922 The pack type is autodetected by the file extension.
924 Returns true if the file was successfully added to the
925 search path or if it was already included.
927 If keep_plain_dirs is set, the pack will be added AFTER the first sequence of
931 qboolean FS_AddPack(const char *pakfile, qboolean *already_loaded, qboolean keep_plain_dirs)
933 char fullpath[MAX_QPATH];
935 searchpath_t *search;
938 *already_loaded = false;
940 // then find the real name...
941 search = FS_FindFile(pakfile, &index, true);
942 if(!search || search->pack)
944 Con_Printf("could not find pak \"%s\"\n", pakfile);
948 dpsnprintf(fullpath, sizeof(fullpath), "%s%s", search->filename, pakfile);
950 return FS_AddPack_Fullpath(fullpath, already_loaded, keep_plain_dirs);
958 Sets fs_gamedir, adds the directory to the head of the path,
959 then loads and adds pak1.pak pak2.pak ...
962 void FS_AddGameDirectory (const char *dir)
964 stringlist_t *list, *current;
965 searchpath_t *search;
966 char pakfile[MAX_OSPATH];
968 strlcpy (fs_gamedir, dir, sizeof (fs_gamedir));
970 list = listdirectory(dir);
972 // add any PAK package in the directory
973 for (current = list;current;current = current->next)
975 if (!strcasecmp(FS_FileExtension(current->text), "pak"))
977 dpsnprintf (pakfile, sizeof (pakfile), "%s%s", dir, current->text);
978 FS_AddPack_Fullpath(pakfile, NULL, false);
982 // add any PK3 package in the directory
983 for (current = list;current;current = current->next)
985 if (!strcasecmp(FS_FileExtension(current->text), "pk3"))
987 dpsnprintf (pakfile, sizeof (pakfile), "%s%s", dir, current->text);
988 FS_AddPack_Fullpath(pakfile, NULL, false);
994 // Add the directory to the search path
995 // (unpacked files have the priority over packed files)
996 search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
997 strlcpy (search->filename, dir, sizeof (search->filename));
998 search->next = fs_searchpaths;
999 fs_searchpaths = search;
1008 void FS_AddGameHierarchy (const char *dir)
1011 const char *homedir;
1014 // Add the common game directory
1015 FS_AddGameDirectory (va("%s%s/", fs_basedir, dir));
1018 // Add the personal game directory
1019 homedir = getenv ("HOME");
1020 if (homedir != NULL && homedir[0] != '\0')
1021 FS_AddGameDirectory (va("%s/.%s/%s/", homedir, gameuserdirname, dir));
1031 const char *FS_FileExtension (const char *in)
1033 const char *separator, *backslash, *colon, *dot;
1035 separator = strrchr(in, '/');
1036 backslash = strrchr(in, '\\');
1037 if (!separator || separator < backslash)
1038 separator = backslash;
1039 colon = strrchr(in, ':');
1040 if (!separator || separator < colon)
1043 dot = strrchr(in, '.');
1044 if (dot == NULL || (separator && (dot < separator)))
1056 const char *FS_FileWithoutPath (const char *in)
1058 const char *separator, *backslash, *colon;
1060 separator = strrchr(in, '/');
1061 backslash = strrchr(in, '\\');
1062 if (!separator || separator < backslash)
1063 separator = backslash;
1064 colon = strrchr(in, ':');
1065 if (!separator || separator < colon)
1067 return separator ? separator + 1 : in;
1076 void FS_ClearSearchPath (void)
1078 while (fs_searchpaths)
1080 searchpath_t *search = fs_searchpaths;
1081 fs_searchpaths = search->next;
1084 if (search->pack->files)
1085 Mem_Free(search->pack->files);
1086 Mem_Free(search->pack);
1098 void FS_Rescan (void)
1101 qboolean fs_modified = false;
1103 FS_ClearSearchPath();
1105 // add the game-specific paths
1106 // gamedirname1 (typically id1)
1107 FS_AddGameHierarchy (gamedirname1);
1108 // update the com_modname (used for server info)
1109 strlcpy(com_modname, gamedirname1, sizeof(com_modname));
1111 // add the game-specific path, if any
1112 // (only used for mission packs and the like, which should set fs_modified)
1116 FS_AddGameHierarchy (gamedirname2);
1120 // Adds basedir/gamedir as an override game
1121 // LordHavoc: now supports multiple -game directories
1122 // set the com_modname (reported in server info)
1123 for (i = 0;i < fs_numgamedirs;i++)
1126 FS_AddGameHierarchy (fs_gamedirs[i]);
1127 // update the com_modname (used server info)
1128 strlcpy (com_modname, fs_gamedirs[i], sizeof (com_modname));
1131 // set the default screenshot name to either the mod name or the
1132 // gamemode screenshot name
1133 if (strcmp(com_modname, gamedirname1))
1134 Cvar_SetQuick (&scr_screenshot_name, com_modname);
1136 Cvar_SetQuick (&scr_screenshot_name, gamescreenshotname);
1138 // If "-condebug" is in the command line, remove the previous log file
1139 if (COM_CheckParm ("-condebug") != 0)
1140 unlink (va("%s/qconsole.log", fs_gamedir));
1142 // look for the pop.lmp file and set registered to true if it is found
1143 if ((gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE) && !FS_FileExists("gfx/pop.lmp"))
1146 Con_Print("Playing shareware version, with modification.\nwarning: most mods require full quake data.\n");
1148 Con_Print("Playing shareware version.\n");
1152 Cvar_Set ("registered", "1");
1153 if (gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1154 Con_Print("Playing registered version.\n");
1158 void FS_Rescan_f(void)
1168 extern void Host_SaveConfig_f (void);
1169 extern void Host_LoadConfig_f (void);
1170 qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean complain, qboolean failmissing)
1174 if (fs_numgamedirs == numgamedirs)
1176 for (i = 0;i < numgamedirs;i++)
1177 if (strcasecmp(fs_gamedirs[i], gamedirs[i]))
1179 if (i == numgamedirs)
1180 return true; // already using this set of gamedirs, do nothing
1183 if (numgamedirs > MAX_GAMEDIRS)
1186 Con_Printf("That is too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS);
1187 return false; // too many gamedirs
1190 for (i = 0;i < numgamedirs;i++)
1192 // if string is nasty, reject it
1193 if(FS_CheckNastyPath(gamedirs[i], true))
1196 Con_Printf("Nasty gamedir name rejected: %s\n", gamedirs[i]);
1197 return false; // nasty gamedirs
1201 for (i = 0;i < numgamedirs;i++)
1203 if (!FS_CheckGameDir(gamedirs[i]) && failmissing)
1206 Con_Printf("Gamedir missing: %s%s/\n", fs_basedir, gamedirs[i]);
1207 return false; // missing gamedirs
1211 Host_SaveConfig_f();
1213 fs_numgamedirs = numgamedirs;
1214 for (i = 0;i < fs_numgamedirs;i++)
1215 strlcpy(fs_gamedirs[i], gamedirs[i], sizeof(fs_gamedirs[i]));
1217 // reinitialize filesystem to detect the new paks
1220 // exec the new config
1221 Host_LoadConfig_f();
1223 // reinitialize the loaded sounds
1226 // reinitialize renderer (this reloads hud/console background/etc)
1227 R_Modules_Restart();
1237 void FS_GameDir_f (void)
1241 char gamedirs[MAX_GAMEDIRS][MAX_QPATH];
1245 Con_Printf("gamedirs active:");
1246 for (i = 0;i < fs_numgamedirs;i++)
1247 Con_Printf(" %s", fs_gamedirs[i]);
1252 numgamedirs = Cmd_Argc() - 1;
1253 if (numgamedirs > MAX_GAMEDIRS)
1255 Con_Printf("Too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS);
1259 for (i = 0;i < numgamedirs;i++)
1260 strlcpy(gamedirs[i], Cmd_Argv(i+1), sizeof(gamedirs[i]));
1262 // allow gamedir change during demo loop
1263 if (cls.demoplayback)
1266 if (cls.state != ca_disconnected || sv.active)
1268 // actually, changing during game would work fine, but would be stupid
1269 Con_Printf("Can not change gamedir while client is connected or server is running!\n");
1273 FS_ChangeGameDirs(numgamedirs, gamedirs, true, true);
1282 qboolean FS_CheckGameDir(const char *gamedir)
1284 stringlist_t *list = listdirectory(va("%s%s/", fs_basedir, gamedir));
1286 freedirectory(list);
1287 return list != NULL;
1300 fs_mempool = Mem_AllocPool("file management", 0, NULL);
1302 strlcpy(fs_gamedir, "", sizeof(fs_gamedir));
1304 // If the base directory is explicitly defined by the compilation process
1305 #ifdef DP_FS_BASEDIR
1306 strlcpy(fs_basedir, DP_FS_BASEDIR, sizeof(fs_basedir));
1308 strlcpy(fs_basedir, "", sizeof(fs_basedir));
1311 // FIXME: is there a better way to find the directory outside the .app?
1312 if (strstr(com_argv[0], ".app/"))
1316 split = strstr(com_argv[0], ".app/");
1317 while (split > com_argv[0] && *split != '/')
1319 strlcpy(fs_basedir, com_argv[0], sizeof(fs_basedir));
1320 fs_basedir[split - com_argv[0]] = 0;
1328 // Overrides the system supplied base directory (under GAMENAME)
1329 // 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)
1330 i = COM_CheckParm ("-basedir");
1331 if (i && i < com_argc-1)
1333 strlcpy (fs_basedir, com_argv[i+1], sizeof (fs_basedir));
1334 i = (int)strlen (fs_basedir);
1335 if (i > 0 && (fs_basedir[i-1] == '\\' || fs_basedir[i-1] == '/'))
1336 fs_basedir[i-1] = 0;
1339 // add a path separator to the end of the basedir if it lacks one
1340 if (fs_basedir[0] && fs_basedir[strlen(fs_basedir) - 1] != '/' && fs_basedir[strlen(fs_basedir) - 1] != '\\')
1341 strlcat(fs_basedir, "/", sizeof(fs_basedir));
1343 if (!FS_CheckGameDir(gamedirname1))
1344 Sys_Error("base gamedir %s%s/ not found!\n", fs_basedir, gamedirname1);
1346 if (gamedirname2 && !FS_CheckGameDir(gamedirname2))
1347 Sys_Error("base gamedir %s%s/ not found!\n", fs_basedir, gamedirname2);
1350 // Adds basedir/gamedir as an override game
1351 // LordHavoc: now supports multiple -game directories
1352 for (i = 1;i < com_argc && fs_numgamedirs < MAX_GAMEDIRS;i++)
1356 if (!strcmp (com_argv[i], "-game") && i < com_argc-1)
1359 if (FS_CheckNastyPath(com_argv[i], true))
1360 Sys_Error("-game %s%s/ is a dangerous/non-portable path\n", fs_basedir, com_argv[i]);
1361 if (!FS_CheckGameDir(com_argv[i]))
1362 Sys_Error("-game %s%s/ not found!\n", fs_basedir, com_argv[i]);
1363 // add the gamedir to the list of active gamedirs
1364 strlcpy (fs_gamedirs[fs_numgamedirs], com_argv[i], sizeof(fs_gamedirs[fs_numgamedirs]));
1369 // generate the searchpath
1373 void FS_Init_Commands(void)
1375 Cvar_RegisterVariable (&scr_screenshot_name);
1377 Cmd_AddCommand ("gamedir", FS_GameDir_f, "changes active gamedir list (can take multiple arguments), not including base directory (example usage: gamedir ctf)");
1378 Cmd_AddCommand ("fs_rescan", FS_Rescan_f, "rescans filesystem for new pack archives and any other changes");
1379 Cmd_AddCommand ("path", FS_Path_f, "print searchpath (game directories and archives)");
1380 Cmd_AddCommand ("dir", FS_Dir_f, "list files in searchpath matching an * filename pattern, one per line");
1381 Cmd_AddCommand ("ls", FS_Ls_f, "list files in searchpath matching an * filename pattern, multiple per line");
1389 void FS_Shutdown (void)
1391 Mem_FreePool (&fs_mempool);
1395 ====================
1398 Internal function used to create a qfile_t and open the relevant non-packed file on disk
1399 ====================
1401 static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean nonblocking)
1407 // Parse the mode string
1416 opt = O_CREAT | O_TRUNC;
1420 opt = O_CREAT | O_APPEND;
1423 Con_Printf ("FS_SysOpen(%s, %s): invalid mode\n", filepath, mode);
1426 for (ind = 1; mode[ind] != '\0'; ind++)
1437 Con_Printf ("FS_SysOpen(%s, %s): unknown character in mode (%c)\n",
1438 filepath, mode, mode[ind]);
1445 file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file));
1446 memset (file, 0, sizeof (*file));
1449 file->handle = open (filepath, mod | opt, 0666);
1450 if (file->handle < 0)
1456 file->real_length = lseek (file->handle, 0, SEEK_END);
1458 // For files opened in append mode, we start at the end of the file
1460 file->position = file->real_length;
1462 lseek (file->handle, 0, SEEK_SET);
1472 Open a packed file using its package file descriptor
1475 qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind)
1481 pfile = &pack->files[pack_ind];
1483 // If we don't have the true offset, get it now
1484 if (! (pfile->flags & PACKFILE_FLAG_TRUEOFFS))
1485 if (!PK3_GetTrueFileOffset (pfile, pack))
1488 // No Zlib DLL = no compressed files
1489 if (!zlib_dll && (pfile->flags & PACKFILE_FLAG_DEFLATED))
1491 Con_Printf("WARNING: can't open the compressed file %s\n"
1492 "You need the Zlib DLL to use compressed files\n",
1497 // LordHavoc: lseek affects all duplicates of a handle so we do it before
1498 // the dup() call to avoid having to close the dup_handle on error here
1499 if (lseek (pack->handle, pfile->offset, SEEK_SET) == -1)
1501 Con_Printf ("FS_OpenPackedFile: can't lseek to %s in %s (offset: %d)\n",
1502 pfile->name, pack->filename, (int) pfile->offset);
1506 dup_handle = dup (pack->handle);
1509 Con_Printf ("FS_OpenPackedFile: can't dup package's handle (pack: %s)\n", pack->filename);
1513 file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file));
1514 memset (file, 0, sizeof (*file));
1515 file->handle = dup_handle;
1516 file->flags = QFILE_FLAG_PACKED;
1517 file->real_length = pfile->realsize;
1518 file->offset = pfile->offset;
1522 if (pfile->flags & PACKFILE_FLAG_DEFLATED)
1526 file->flags |= QFILE_FLAG_DEFLATED;
1528 // We need some more variables
1529 ztk = (ztoolkit_t *)Mem_Alloc (fs_mempool, sizeof (*ztk));
1531 ztk->comp_length = pfile->packsize;
1533 // Initialize zlib stream
1534 ztk->zstream.next_in = ztk->input;
1535 ztk->zstream.avail_in = 0;
1537 /* From Zlib's "unzip.c":
1539 * windowBits is passed < 0 to tell that there is no zlib header.
1540 * Note that in this case inflate *requires* an extra "dummy" byte
1541 * after the compressed stream in order to complete decompression and
1542 * return Z_STREAM_END.
1543 * In unzip, i don't wait absolutely Z_STREAM_END because I known the
1544 * size of both compressed and uncompressed data
1546 if (qz_inflateInit2 (&ztk->zstream, -MAX_WBITS) != Z_OK)
1548 Con_Printf ("FS_OpenPackedFile: inflate init error (file: %s)\n", pfile->name);
1554 ztk->zstream.next_out = file->buff;
1555 ztk->zstream.avail_out = sizeof (file->buff);
1564 ====================
1567 Return true if the path should be rejected due to one of the following:
1568 1: path elements that are non-portable
1569 2: path elements that would allow access to files outside the game directory,
1570 or are just not a good idea for a mod to be using.
1571 ====================
1573 int FS_CheckNastyPath (const char *path, qboolean isgamedir)
1575 // all: never allow an empty path, as for gamedir it would access the parent directory and a non-gamedir path it is just useless
1579 // Windows: don't allow \ in filenames (windows-only), period.
1580 // (on Windows \ is a directory separator, but / is also supported)
1581 if (strstr(path, "\\"))
1582 return 1; // non-portable
1584 // Mac: don't allow Mac-only filenames - : is a directory separator
1585 // instead of /, but we rely on / working already, so there's no reason to
1586 // support a Mac-only path
1587 // Amiga and Windows: : tries to go to root of drive
1588 if (strstr(path, ":"))
1589 return 1; // non-portable attempt to go to root of drive
1591 // Amiga: // is parent directory
1592 if (strstr(path, "//"))
1593 return 1; // non-portable attempt to go to parent directory
1595 // all: don't allow going to parent directory (../ or /../)
1596 if (strstr(path, ".."))
1597 return 2; // attempt to go outside the game directory
1599 // Windows and UNIXes: don't allow absolute paths
1601 return 2; // attempt to go outside the game directory
1603 // 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
1604 if (strchr(path, '.'))
1608 // gamedir is entirely path elements, so simply forbid . entirely
1611 if (strchr(path, '.') < strrchr(path, '/'))
1612 return 2; // possible attempt to go outside the game directory
1615 // all: forbid trailing slash on gamedir
1616 if (isgamedir && path[strlen(path)-1] == '/')
1619 // all: forbid leading dot on any filename for any reason
1620 if (strstr(path, "/."))
1621 return 2; // attempt to go outside the game directory
1623 // after all these checks we're pretty sure it's a / separated filename
1624 // and won't do much if any harm
1630 ====================
1633 Look for a file in the packages and in the filesystem
1635 Return the searchpath where the file was found (or NULL)
1636 and the file index in the package if relevant
1637 ====================
1639 static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet)
1641 searchpath_t *search;
1644 // search through the path, one element at a time
1645 for (search = fs_searchpaths;search;search = search->next)
1647 // is the element a pak file?
1650 int (*strcmp_funct) (const char* str1, const char* str2);
1651 int left, right, middle;
1654 strcmp_funct = pak->ignorecase ? strcasecmp : strcmp;
1656 // Look for the file (binary search)
1658 right = pak->numfiles - 1;
1659 while (left <= right)
1663 middle = (left + right) / 2;
1664 diff = strcmp_funct (pak->files[middle].name, name);
1669 if (!quiet && developer.integer >= 10)
1670 Con_Printf("FS_FindFile: %s in %s\n",
1671 pak->files[middle].name, pak->filename);
1678 // If we're too far in the list
1687 char netpath[MAX_OSPATH];
1688 dpsnprintf(netpath, sizeof(netpath), "%s%s", search->filename, name);
1689 if (FS_SysFileExists (netpath))
1691 if (!quiet && developer.integer >= 10)
1692 Con_Printf("FS_FindFile: %s\n", netpath);
1701 if (!quiet && developer.integer >= 10)
1702 Con_Printf("FS_FindFile: can't find %s\n", name);
1714 Look for a file in the search paths and open it in read-only mode
1717 qfile_t *FS_OpenReadFile (const char *filename, qboolean quiet, qboolean nonblocking)
1719 searchpath_t *search;
1722 search = FS_FindFile (filename, &pack_ind, quiet);
1728 // Found in the filesystem?
1731 char path [MAX_OSPATH];
1732 dpsnprintf (path, sizeof (path), "%s%s", search->filename, filename);
1733 return FS_SysOpen (path, "rb", nonblocking);
1736 // So, we found it in a package...
1737 return FS_OpenPackedFile (search->pack, pack_ind);
1742 =============================================================================
1744 MAIN PUBLIC FUNCTIONS
1746 =============================================================================
1750 ====================
1753 Open a file. The syntax is the same as fopen
1754 ====================
1756 qfile_t* FS_Open (const char* filepath, const char* mode, qboolean quiet, qboolean nonblocking)
1758 if (FS_CheckNastyPath(filepath, false))
1760 Con_Printf("FS_Open(\"%s\", \"%s\", %s): nasty filename rejected\n", filepath, mode, quiet ? "true" : "false");
1764 // If the file is opened in "write", "append", or "read/write" mode
1765 if (mode[0] == 'w' || mode[0] == 'a' || strchr (mode, '+'))
1767 char real_path [MAX_OSPATH];
1769 // Open the file on disk directly
1770 dpsnprintf (real_path, sizeof (real_path), "%s/%s", fs_gamedir, filepath);
1772 // Create directories up to the file
1773 FS_CreatePath (real_path);
1775 return FS_SysOpen (real_path, mode, nonblocking);
1777 // Else, we look at the various search paths and open the file in read-only mode
1779 return FS_OpenReadFile (filepath, quiet, nonblocking);
1784 ====================
1788 ====================
1790 int FS_Close (qfile_t* file)
1792 if (close (file->handle))
1797 qz_inflateEnd (&file->ztk->zstream);
1798 Mem_Free (file->ztk);
1807 ====================
1810 Write "datasize" bytes into a file
1811 ====================
1813 fs_offset_t FS_Write (qfile_t* file, const void* data, size_t datasize)
1817 // If necessary, seek to the exact file position we're supposed to be
1818 if (file->buff_ind != file->buff_len)
1819 lseek (file->handle, file->buff_ind - file->buff_len, SEEK_CUR);
1821 // Purge cached data
1824 // Write the buffer and update the position
1825 result = write (file->handle, data, (fs_offset_t)datasize);
1826 file->position = lseek (file->handle, 0, SEEK_CUR);
1827 if (file->real_length < file->position)
1828 file->real_length = file->position;
1838 ====================
1841 Read up to "buffersize" bytes from a file
1842 ====================
1844 fs_offset_t FS_Read (qfile_t* file, void* buffer, size_t buffersize)
1846 fs_offset_t count, done;
1848 if (buffersize == 0)
1851 // Get rid of the ungetc character
1852 if (file->ungetc != EOF)
1854 ((char*)buffer)[0] = file->ungetc;
1862 // First, we copy as many bytes as we can from "buff"
1863 if (file->buff_ind < file->buff_len)
1865 count = file->buff_len - file->buff_ind;
1867 done += ((fs_offset_t)buffersize > count) ? count : (fs_offset_t)buffersize;
1868 memcpy (buffer, &file->buff[file->buff_ind], done);
1869 file->buff_ind += done;
1872 if (buffersize == 0)
1876 // NOTE: at this point, the read buffer is always empty
1878 // If the file isn't compressed
1879 if (! (file->flags & QFILE_FLAG_DEFLATED))
1883 // We must take care to not read after the end of the file
1884 count = file->real_length - file->position;
1886 // If we have a lot of data to get, put them directly into "buffer"
1887 if (buffersize > sizeof (file->buff) / 2)
1889 if (count > (fs_offset_t)buffersize)
1890 count = (fs_offset_t)buffersize;
1891 lseek (file->handle, file->offset + file->position, SEEK_SET);
1892 nb = read (file->handle, &((unsigned char*)buffer)[done], count);
1896 file->position += nb;
1898 // Purge cached data
1904 if (count > (fs_offset_t)sizeof (file->buff))
1905 count = (fs_offset_t)sizeof (file->buff);
1906 lseek (file->handle, file->offset + file->position, SEEK_SET);
1907 nb = read (file->handle, file->buff, count);
1910 file->buff_len = nb;
1911 file->position += nb;
1913 // Copy the requested data in "buffer" (as much as we can)
1914 count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize;
1915 memcpy (&((unsigned char*)buffer)[done], file->buff, count);
1916 file->buff_ind = count;
1924 // If the file is compressed, it's more complicated...
1925 // We cycle through a few operations until we have read enough data
1926 while (buffersize > 0)
1928 ztoolkit_t *ztk = file->ztk;
1931 // NOTE: at this point, the read buffer is always empty
1933 // If "input" is also empty, we need to refill it
1934 if (ztk->in_ind == ztk->in_len)
1936 // If we are at the end of the file
1937 if (file->position == file->real_length)
1940 count = (fs_offset_t)(ztk->comp_length - ztk->in_position);
1941 if (count > (fs_offset_t)sizeof (ztk->input))
1942 count = (fs_offset_t)sizeof (ztk->input);
1943 lseek (file->handle, file->offset + (fs_offset_t)ztk->in_position, SEEK_SET);
1944 if (read (file->handle, ztk->input, count) != count)
1946 Con_Printf ("FS_Read: unexpected end of file\n");
1951 ztk->in_len = count;
1952 ztk->in_position += count;
1955 ztk->zstream.next_in = &ztk->input[ztk->in_ind];
1956 ztk->zstream.avail_in = (unsigned int)(ztk->in_len - ztk->in_ind);
1958 // Now that we are sure we have compressed data available, we need to determine
1959 // if it's better to inflate it in "file->buff" or directly in "buffer"
1961 // Inflate the data in "file->buff"
1962 if (buffersize < sizeof (file->buff) / 2)
1964 ztk->zstream.next_out = file->buff;
1965 ztk->zstream.avail_out = sizeof (file->buff);
1966 error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH);
1967 if (error != Z_OK && error != Z_STREAM_END)
1969 Con_Printf ("FS_Read: Can't inflate file\n");
1972 ztk->in_ind = ztk->in_len - ztk->zstream.avail_in;
1974 file->buff_len = (fs_offset_t)sizeof (file->buff) - ztk->zstream.avail_out;
1975 file->position += file->buff_len;
1977 // Copy the requested data in "buffer" (as much as we can)
1978 count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize;
1979 memcpy (&((unsigned char*)buffer)[done], file->buff, count);
1980 file->buff_ind = count;
1983 // Else, we inflate directly in "buffer"
1986 ztk->zstream.next_out = &((unsigned char*)buffer)[done];
1987 ztk->zstream.avail_out = (unsigned int)buffersize;
1988 error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH);
1989 if (error != Z_OK && error != Z_STREAM_END)
1991 Con_Printf ("FS_Read: Can't inflate file\n");
1994 ztk->in_ind = ztk->in_len - ztk->zstream.avail_in;
1996 // How much data did it inflate?
1997 count = (fs_offset_t)(buffersize - ztk->zstream.avail_out);
1998 file->position += count;
2000 // Purge cached data
2005 buffersize -= count;
2013 ====================
2016 Print a string into a file
2017 ====================
2019 int FS_Print (qfile_t* file, const char *msg)
2021 return (int)FS_Write (file, msg, strlen (msg));
2025 ====================
2028 Print a string into a file
2029 ====================
2031 int FS_Printf(qfile_t* file, const char* format, ...)
2036 va_start (args, format);
2037 result = FS_VPrintf (file, format, args);
2045 ====================
2048 Print a string into a file
2049 ====================
2051 int FS_VPrintf (qfile_t* file, const char* format, va_list ap)
2054 fs_offset_t buff_size = MAX_INPUTLINE;
2059 tempbuff = (char *)Mem_Alloc (tempmempool, buff_size);
2060 len = dpvsnprintf (tempbuff, buff_size, format, ap);
2061 if (len >= 0 && len < buff_size)
2063 Mem_Free (tempbuff);
2067 len = write (file->handle, tempbuff, len);
2068 Mem_Free (tempbuff);
2075 ====================
2078 Get the next character of a file
2079 ====================
2081 int FS_Getc (qfile_t* file)
2085 if (FS_Read (file, &c, 1) != 1)
2093 ====================
2096 Put a character back into the read buffer (only supports one character!)
2097 ====================
2099 int FS_UnGetc (qfile_t* file, unsigned char c)
2101 // If there's already a character waiting to be read
2102 if (file->ungetc != EOF)
2111 ====================
2114 Move the position index in a file
2115 ====================
2117 int FS_Seek (qfile_t* file, fs_offset_t offset, int whence)
2120 unsigned char* buffer;
2121 fs_offset_t buffersize;
2123 // Compute the file offset
2127 offset += file->position - file->buff_len + file->buff_ind;
2134 offset += file->real_length;
2140 if (offset < 0 || offset > (long) file->real_length)
2143 // If we have the data in our read buffer, we don't need to actually seek
2144 if (file->position - file->buff_len <= offset && offset <= file->position)
2146 file->buff_ind = offset + file->buff_len - file->position;
2150 // Purge cached data
2153 // Unpacked or uncompressed files can seek directly
2154 if (! (file->flags & QFILE_FLAG_DEFLATED))
2156 if (lseek (file->handle, file->offset + offset, SEEK_SET) == -1)
2158 file->position = offset;
2162 // Seeking in compressed files is more a hack than anything else,
2163 // but we need to support it, so here we go.
2166 // If we have to go back in the file, we need to restart from the beginning
2167 if (offset <= file->position)
2171 ztk->in_position = 0;
2173 lseek (file->handle, file->offset, SEEK_SET);
2175 // Reset the Zlib stream
2176 ztk->zstream.next_in = ztk->input;
2177 ztk->zstream.avail_in = 0;
2178 qz_inflateReset (&ztk->zstream);
2181 // We need a big buffer to force inflating into it directly
2182 buffersize = 2 * sizeof (file->buff);
2183 buffer = (unsigned char *)Mem_Alloc (tempmempool, buffersize);
2185 // Skip all data until we reach the requested offset
2186 while (offset > file->position)
2188 fs_offset_t diff = offset - file->position;
2189 fs_offset_t count, len;
2191 count = (diff > buffersize) ? buffersize : diff;
2192 len = FS_Read (file, buffer, count);
2206 ====================
2209 Give the current position in a file
2210 ====================
2212 fs_offset_t FS_Tell (qfile_t* file)
2214 return file->position - file->buff_len + file->buff_ind;
2219 ====================
2222 Give the total size of a file
2223 ====================
2225 fs_offset_t FS_FileSize (qfile_t* file)
2227 return file->real_length;
2232 ====================
2235 Erases any buffered input or output data
2236 ====================
2238 void FS_Purge (qfile_t* file)
2250 Filename are relative to the quake directory.
2251 Always appends a 0 byte.
2254 unsigned char *FS_LoadFile (const char *path, mempool_t *pool, qboolean quiet, fs_offset_t *filesizepointer)
2257 unsigned char *buf = NULL;
2258 fs_offset_t filesize = 0;
2260 file = FS_Open (path, "rb", quiet, false);
2263 filesize = file->real_length;
2264 buf = (unsigned char *)Mem_Alloc (pool, filesize + 1);
2265 buf[filesize] = '\0';
2266 FS_Read (file, buf, filesize);
2270 if (filesizepointer)
2271 *filesizepointer = filesize;
2280 The filename will be prefixed by the current game directory
2283 qboolean FS_WriteFile (const char *filename, void *data, fs_offset_t len)
2287 file = FS_Open (filename, "wb", false, false);
2290 Con_Printf("FS_WriteFile: failed on %s\n", filename);
2294 Con_DPrintf("FS_WriteFile: %s\n", filename);
2295 FS_Write (file, data, len);
2302 =============================================================================
2304 OTHERS PUBLIC FUNCTIONS
2306 =============================================================================
2314 void FS_StripExtension (const char *in, char *out, size_t size_out)
2322 while ((currentchar = *in) && size_out > 1)
2324 if (currentchar == '.')
2326 else if (currentchar == '/' || currentchar == '\\' || currentchar == ':')
2328 *out++ = currentchar;
2344 void FS_DefaultExtension (char *path, const char *extension, size_t size_path)
2348 // if path doesn't have a .EXT, append extension
2349 // (extension should include the .)
2350 src = path + strlen(path) - 1;
2352 while (*src != '/' && src != path)
2355 return; // it has an extension
2359 strlcat (path, extension, size_path);
2367 Look for a file in the packages and in the filesystem
2370 qboolean FS_FileExists (const char *filename)
2372 return (FS_FindFile (filename, NULL, true) != NULL);
2380 Look for a file in the filesystem only
2383 qboolean FS_SysFileExists (const char *path)
2388 // TODO: use another function instead, to avoid opening the file
2389 desc = open (path, O_RDONLY | O_BINARY);
2398 if (stat (path,&buf) == -1)
2405 void FS_mkdir (const char *path)
2418 Allocate and fill a search structure with information on matching filenames.
2421 fssearch_t *FS_Search(const char *pattern, int caseinsensitive, int quiet)
2424 searchpath_t *searchpath;
2426 int i, basepathlength, numfiles, numchars;
2427 stringlist_t *dir, *dirfile, *liststart, *listcurrent, *listtemp;
2428 const char *slash, *backslash, *colon, *separator;
2430 char netpath[MAX_OSPATH];
2431 char temp[MAX_OSPATH];
2433 for (i = 0;pattern[i] == '.' || pattern[i] == ':' || pattern[i] == '/' || pattern[i] == '\\';i++)
2438 Con_Printf("Don't use punctuation at the beginning of a search pattern!\n");
2446 slash = strrchr(pattern, '/');
2447 backslash = strrchr(pattern, '\\');
2448 colon = strrchr(pattern, ':');
2449 separator = max(slash, backslash);
2450 separator = max(separator, colon);
2451 basepathlength = separator ? (separator + 1 - pattern) : 0;
2452 basepath = (char *)Mem_Alloc (tempmempool, basepathlength + 1);
2454 memcpy(basepath, pattern, basepathlength);
2455 basepath[basepathlength] = 0;
2457 // search through the path, one element at a time
2458 for (searchpath = fs_searchpaths;searchpath;searchpath = searchpath->next)
2460 // is the element a pak file?
2461 if (searchpath->pack)
2463 // look through all the pak file elements
2464 pak = searchpath->pack;
2465 for (i = 0;i < pak->numfiles;i++)
2467 strlcpy(temp, pak->files[i].name, sizeof(temp));
2470 if (matchpattern(temp, (char *)pattern, true))
2472 for (listtemp = liststart;listtemp;listtemp = listtemp->next)
2473 if (!strcmp(listtemp->text, temp))
2475 if (listtemp == NULL)
2477 listcurrent = stringlistappend(listcurrent, temp);
2478 if (liststart == NULL)
2479 liststart = listcurrent;
2481 Con_DPrintf("SearchPackFile: %s : %s\n", pak->filename, temp);
2484 // strip off one path element at a time until empty
2485 // this way directories are added to the listing if they match the pattern
2486 slash = strrchr(temp, '/');
2487 backslash = strrchr(temp, '\\');
2488 colon = strrchr(temp, ':');
2490 if (separator < slash)
2492 if (separator < backslash)
2493 separator = backslash;
2494 if (separator < colon)
2496 *((char *)separator) = 0;
2502 // get a directory listing and look at each name
2503 dpsnprintf(netpath, sizeof (netpath), "%s%s", searchpath->filename, basepath);
2504 if ((dir = listdirectory(netpath)))
2506 for (dirfile = dir;dirfile;dirfile = dirfile->next)
2508 dpsnprintf(temp, sizeof(temp), "%s%s", basepath, dirfile->text);
2509 if (matchpattern(temp, (char *)pattern, true))
2511 for (listtemp = liststart;listtemp;listtemp = listtemp->next)
2512 if (!strcmp(listtemp->text, temp))
2514 if (listtemp == NULL)
2516 listcurrent = stringlistappend(listcurrent, temp);
2517 if (liststart == NULL)
2518 liststart = listcurrent;
2520 Con_DPrintf("SearchDirFile: %s\n", temp);
2531 liststart = stringlistsort(liststart);
2534 for (listtemp = liststart;listtemp;listtemp = listtemp->next)
2537 numchars += (int)strlen(listtemp->text) + 1;
2539 search = (fssearch_t *)Z_Malloc(sizeof(fssearch_t) + numchars + numfiles * sizeof(char *));
2540 search->filenames = (char **)((char *)search + sizeof(fssearch_t));
2541 search->filenamesbuffer = (char *)((char *)search + sizeof(fssearch_t) + numfiles * sizeof(char *));
2542 search->numfilenames = (int)numfiles;
2545 for (listtemp = liststart;listtemp;listtemp = listtemp->next)
2548 search->filenames[numfiles] = search->filenamesbuffer + numchars;
2549 textlen = strlen(listtemp->text) + 1;
2550 memcpy(search->filenames[numfiles], listtemp->text, textlen);
2552 numchars += (int)textlen;
2555 stringlistfree(liststart);
2562 void FS_FreeSearch(fssearch_t *search)
2567 extern int con_linewidth;
2568 int FS_ListDirectory(const char *pattern, int oneperline)
2577 char linebuf[MAX_INPUTLINE];
2579 search = FS_Search(pattern, true, true);
2582 numfiles = search->numfilenames;
2585 // FIXME: the names could be added to one column list and then
2586 // gradually shifted into the next column if they fit, and then the
2587 // next to make a compact variable width listing but it's a lot more
2589 // find width for columns
2591 for (i = 0;i < numfiles;i++)
2593 l = (int)strlen(search->filenames[i]);
2594 if (columnwidth < l)
2597 // count the spacing character
2599 // calculate number of columns
2600 numcolumns = con_linewidth / columnwidth;
2601 // don't bother with the column printing if it's only one column
2602 if (numcolumns >= 2)
2604 numlines = (numfiles + numcolumns - 1) / numcolumns;
2605 for (i = 0;i < numlines;i++)
2608 for (k = 0;k < numcolumns;k++)
2610 l = i * numcolumns + k;
2613 name = search->filenames[l];
2614 for (j = 0;name[j] && linebufpos + 1 < (int)sizeof(linebuf);j++)
2615 linebuf[linebufpos++] = name[j];
2616 // space out name unless it's the last on the line
2617 if (k + 1 < numcolumns && l + 1 < numfiles)
2618 for (;j < columnwidth && linebufpos + 1 < (int)sizeof(linebuf);j++)
2619 linebuf[linebufpos++] = ' ';
2622 linebuf[linebufpos] = 0;
2623 Con_Printf("%s\n", linebuf);
2630 for (i = 0;i < numfiles;i++)
2631 Con_Printf("%s\n", search->filenames[i]);
2632 FS_FreeSearch(search);
2633 return (int)numfiles;
2636 static void FS_ListDirectoryCmd (const char* cmdname, int oneperline)
2638 const char *pattern;
2641 Con_Printf("usage:\n%s [path/pattern]\n", cmdname);
2644 if (Cmd_Argc() == 2)
2645 pattern = Cmd_Argv(1);
2648 if (!FS_ListDirectory(pattern, oneperline))
2649 Con_Print("No files found.\n");
2654 FS_ListDirectoryCmd("dir", true);
2659 FS_ListDirectoryCmd("ls", false);
2662 const char *FS_WhichPack(const char *filename)
2665 searchpath_t *sp = FS_FindFile(filename, &index, true);
2667 return sp->pack->filename;
2673 ====================
2674 FS_IsRegisteredQuakePack
2676 Look for a proof of purchase file file in the requested package
2678 If it is found, this file should NOT be downloaded.
2679 ====================
2681 qboolean FS_IsRegisteredQuakePack(const char *name)
2683 searchpath_t *search;
2686 // search through the path, one element at a time
2687 for (search = fs_searchpaths;search;search = search->next)
2689 if (search->pack && !strcasecmp(FS_FileWithoutPath(search->filename), name))
2691 int (*strcmp_funct) (const char* str1, const char* str2);
2692 int left, right, middle;
2695 strcmp_funct = pak->ignorecase ? strcasecmp : strcmp;
2697 // Look for the file (binary search)
2699 right = pak->numfiles - 1;
2700 while (left <= right)
2704 middle = (left + right) / 2;
2705 diff = !strcmp_funct (pak->files[middle].name, "gfx/pop.lmp");
2711 // If we're too far in the list
2718 // we found the requested pack but it is not registered quake
2726 int FS_CRCFile(const char *filename, size_t *filesizepointer)
2729 unsigned char *filedata;
2730 fs_offset_t filesize;
2731 if (filesizepointer)
2732 *filesizepointer = 0;
2733 if (!filename || !*filename)
2735 filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
2738 if (filesizepointer)
2739 *filesizepointer = filesize;
2740 crc = CRC_Block(filedata, filesize);