X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=fs.c;h=0782cf52bdb26ca8bba15ce4ebc3da9ace1f4f5c;hp=6f7a4fc83a2829863396fd2cef3ff72203811924;hb=66e2a20b4a20d03de1098a3c76186cb0ce316f21;hpb=7af7247c0a52badc41bdaa71ed39425d53f4f63d diff --git a/fs.c b/fs.c index 6f7a4fc8..0782cf52 100644 --- a/fs.c +++ b/fs.c @@ -1,8 +1,7 @@ /* DarkPlaces file system - Copyright (C) 2003-2005 Mathieu Olivier - Copyright (C) 1999,2000 contributors of the QuakeForge project + Copyright (C) 2003-2006 Mathieu Olivier This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License @@ -31,6 +30,7 @@ #ifdef WIN32 # include # include +# include #else # include # include @@ -38,14 +38,35 @@ #endif #include "fs.h" +#include "wad.h" // Win32 requires us to add O_BINARY, but the other OSes don't have it #ifndef O_BINARY # define O_BINARY 0 #endif +// In case the system doesn't support the O_NONBLOCK flag +#ifndef O_NONBLOCK +# define O_NONBLOCK 0 +#endif -/* +// largefile support for Win32 +#ifdef WIN32 +# define lseek _lseeki64 +#endif + +#if _MSC_VER >= 1400 +// suppress deprecated warnings +# include +# include +# define read _read +# define write _write +# define close _close +# define unlink _unlink +# define dup _dup +#endif + +/** \page fs File System All of Quake's data access is through a hierchal file system, but the contents of the file system can be transparently merged from several sources. @@ -90,7 +111,26 @@ CONSTANTS #define MAX_WBITS 15 #define Z_OK 0 #define Z_STREAM_END 1 -#define ZLIB_VERSION "1.1.4" +#define Z_STREAM_ERROR (-2) +#define Z_DATA_ERROR (-3) +#define Z_MEM_ERROR (-4) +#define Z_BUF_ERROR (-5) +#define ZLIB_VERSION "1.2.3" + +#define Z_BINARY 0 +#define Z_DEFLATED 8 +#define Z_MEMLEVEL_DEFAULT 8 + +#define Z_NULL 0 +#define Z_DEFAULT_COMPRESSION (-1) +#define Z_NO_FLUSH 0 +#define Z_SYNC_FLUSH 2 +#define Z_FULL_FLUSH 3 +#define Z_FINISH 4 + +// Uncomment the following line if the zlib DLL you have still uses +// the 1.1.x series calling convention on Win32 (WINAPI) +//#define ZLIB_USES_WINAPI /* @@ -101,64 +141,66 @@ TYPES ============================================================================= */ -// Zlib stream (from zlib.h) -// Warning: some pointers we don't use directly have -// been cast to "void*" for a matter of simplicity +/*! Zlib stream (from zlib.h) + * \warning: some pointers we don't use directly have + * been cast to "void*" for a matter of simplicity + */ typedef struct { - qbyte *next_in; // next input byte - unsigned int avail_in; // number of bytes available at next_in - unsigned long total_in; // total nb of input bytes read so far + unsigned char *next_in; ///< next input byte + unsigned int avail_in; ///< number of bytes available at next_in + unsigned long total_in; ///< total nb of input bytes read so far - qbyte *next_out; // next output byte should be put there - unsigned int avail_out; // remaining free space at next_out - unsigned long total_out; // total nb of bytes output so far + unsigned char *next_out; ///< next output byte should be put there + unsigned int avail_out; ///< remaining free space at next_out + unsigned long total_out; ///< total nb of bytes output so far - char *msg; // last error message, NULL if no error - void *state; // not visible by applications + char *msg; ///< last error message, NULL if no error + void *state; ///< not visible by applications - void *zalloc; // used to allocate the internal state - void *zfree; // used to free the internal state - void *opaque; // private data object passed to zalloc and zfree + void *zalloc; ///< used to allocate the internal state + void *zfree; ///< used to free the internal state + void *opaque; ///< private data object passed to zalloc and zfree - int data_type; // best guess about the data type: ascii or binary - unsigned long adler; // adler32 value of the uncompressed data - unsigned long reserved; // reserved for future use + int data_type; ///< best guess about the data type: ascii or binary + unsigned long adler; ///< adler32 value of the uncompressed data + unsigned long reserved; ///< reserved for future use } z_stream; -typedef enum -{ - QFILE_FLAG_NONE = 0, - QFILE_FLAG_PACKED = (1 << 0), // inside a package (PAK or PK3) - QFILE_FLAG_DEFLATED = (1 << 1) // file is compressed using the deflate algorithm (PK3 only) -} qfile_flags_t; +/// inside a package (PAK or PK3) +#define QFILE_FLAG_PACKED (1 << 0) +/// file is compressed using the deflate algorithm (PK3 only) +#define QFILE_FLAG_DEFLATED (1 << 1) +/// file is actually already loaded data +#define QFILE_FLAG_DATA (1 << 2) #define FILE_BUFF_SIZE 2048 typedef struct { z_stream zstream; - size_t comp_length; // length of the compressed file - size_t in_ind, in_len; // input buffer current index and length - size_t in_position; // position in the compressed file - qbyte input [FILE_BUFF_SIZE]; + size_t comp_length; ///< length of the compressed file + size_t in_ind, in_len; ///< input buffer current index and length + size_t in_position; ///< position in the compressed file + unsigned char input [FILE_BUFF_SIZE]; } ztoolkit_t; struct qfile_s { - qfile_flags_t flags; - int handle; // file descriptor - size_t real_length; // uncompressed file size (for files opened in "read" mode) - size_t position; // current position in the file - size_t offset; // offset into the package (0 if external file) - int ungetc; // single stored character from ungetc, cleared to EOF when read + int flags; + int handle; ///< file descriptor + fs_offset_t real_length; ///< uncompressed file size (for files opened in "read" mode) + fs_offset_t position; ///< current position in the file + fs_offset_t offset; ///< offset into the package (0 if external file) + int ungetc; ///< single stored character from ungetc, cleared to EOF when read // Contents buffer - size_t buff_ind, buff_len; // buffer current index and length - qbyte buff [FILE_BUFF_SIZE]; + fs_offset_t buff_ind, buff_len; ///< buffer current index and length + unsigned char buff [FILE_BUFF_SIZE]; - // For zipped files - ztoolkit_t* ztk; + ztoolkit_t* ztk; ///< For zipped files. + + const unsigned char *data; ///< For data files. }; @@ -166,27 +208,27 @@ struct qfile_s // You can get the complete ZIP format description from PKWARE website -typedef struct +typedef struct pk3_endOfCentralDir_s { unsigned int signature; unsigned short disknum; - unsigned short cdir_disknum; // number of the disk with the start of the central directory - unsigned short localentries; // number of entries in the central directory on this disk - unsigned short nbentries; // total number of entries in the central directory on this disk - unsigned int cdir_size; // size of the central directory - unsigned int cdir_offset; // with respect to the starting disk number + unsigned short cdir_disknum; ///< number of the disk with the start of the central directory + unsigned short localentries; ///< number of entries in the central directory on this disk + unsigned short nbentries; ///< total number of entries in the central directory on this disk + unsigned int cdir_size; ///< size of the central directory + unsigned int cdir_offset; ///< with respect to the starting disk number unsigned short comment_size; } pk3_endOfCentralDir_t; // ------ PAK files on disk ------ // -typedef struct +typedef struct dpackfile_s { char name[56]; int filepos, filelen; } dpackfile_t; -typedef struct +typedef struct dpackheader_s { char id[4]; int dirofs; @@ -194,35 +236,37 @@ typedef struct } dpackheader_t; -// Packages in memory -typedef enum -{ - PACKFILE_FLAG_NONE = 0, - PACKFILE_FLAG_TRUEOFFS = (1 << 0), // the offset in packfile_t is the true contents offset - PACKFILE_FLAG_DEFLATED = (1 << 1) // file compressed using the deflate algorithm -} packfile_flags_t; +/*! \name Packages in memory + * @{ + */ +/// the offset in packfile_t is the true contents offset +#define PACKFILE_FLAG_TRUEOFFS (1 << 0) +/// file compressed using the deflate algorithm +#define PACKFILE_FLAG_DEFLATED (1 << 1) +/// file is a symbolic link +#define PACKFILE_FLAG_SYMLINK (1 << 2) -typedef struct +typedef struct packfile_s { char name [MAX_QPATH]; - packfile_flags_t flags; - size_t offset; - size_t packsize; // size in the package - size_t realsize; // real file size (uncompressed) + int flags; + fs_offset_t offset; + fs_offset_t packsize; ///< size in the package + fs_offset_t realsize; ///< real file size (uncompressed) } packfile_t; typedef struct pack_s { char filename [MAX_OSPATH]; + char shortname [MAX_QPATH]; int handle; - int ignorecase; // PK3 ignores case + int ignorecase; ///< PK3 ignores case int numfiles; packfile_t *files; - struct pack_s *next; } pack_t; +//@} - -// Search paths for files (including packages) +/// Search paths for files (including packages) typedef struct searchpath_s { // only one of filename / pack will be used @@ -242,10 +286,12 @@ FUNCTION PROTOTYPES void FS_Dir_f(void); void FS_Ls_f(void); +void FS_Which_f(void); +static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet); static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack, - size_t offset, size_t packsize, - size_t realsize, packfile_flags_t flags); + fs_offset_t offset, fs_offset_t packsize, + fs_offset_t realsize, int flags); /* @@ -258,18 +304,26 @@ VARIABLES mempool_t *fs_mempool; -int fs_filesize; - -pack_t *packlist = NULL; - searchpath_t *fs_searchpaths = NULL; +const char *const fs_checkgamedir_missing = "missing"; #define MAX_FILES_IN_PACK 65536 +char fs_userdir[MAX_OSPATH]; char fs_gamedir[MAX_OSPATH]; char fs_basedir[MAX_OSPATH]; -qboolean fs_modified; // set true if using non-id files +// list of active game directories (empty if not running a mod) +int fs_numgamedirs = 0; +char fs_gamedirs[MAX_GAMEDIRS][MAX_QPATH]; + +// list of all gamedirs with modinfo.txt +gamedir_t *fs_all_gamedirs = NULL; +int fs_all_gamedirs_count = 0; + +cvar_t scr_screenshot_name = {CVAR_NORESETTODEFAULTS, "scr_screenshot_name","dp", "prefix name for saved screenshots (changes based on -game commandline, as well as which game mode is running; the date is encoded using strftime escapes)"}; +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"}; +cvar_t cvar_fs_gamedir = {CVAR_READONLY | CVAR_NORESETTODEFAULTS, "fs_gamedir", "", "the list of currently selected gamedirs (use the 'gamedir' command to change this)"}; /* @@ -281,7 +335,7 @@ PRIVATE FUNCTIONS - PK3 HANDLING */ // Functions exported from zlib -#ifdef WIN32 +#if defined(WIN32) && defined(ZLIB_USES_WINAPI) # define ZEXPORT WINAPI #else # define ZEXPORT @@ -291,9 +345,16 @@ static int (ZEXPORT *qz_inflate) (z_stream* strm, int flush); static int (ZEXPORT *qz_inflateEnd) (z_stream* strm); static int (ZEXPORT *qz_inflateInit2_) (z_stream* strm, int windowBits, const char *version, int stream_size); static int (ZEXPORT *qz_inflateReset) (z_stream* strm); +static int (ZEXPORT *qz_deflateInit2_) (z_stream* strm, int level, int method, int windowBits, int memLevel, int strategy, const char *version, int stream_size); +static int (ZEXPORT *qz_deflateEnd) (z_stream* strm); +static int (ZEXPORT *qz_deflate) (z_stream* strm, int flush); #define qz_inflateInit2(strm, windowBits) \ qz_inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) +#define qz_deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ + qz_deflateInit2_((strm), (level), (method), (windowBits), (memLevel), (strategy), ZLIB_VERSION, sizeof(z_stream)) + +// qz_deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) static dllfunction_t zlibfuncs[] = { @@ -301,12 +362,24 @@ static dllfunction_t zlibfuncs[] = {"inflateEnd", (void **) &qz_inflateEnd}, {"inflateInit2_", (void **) &qz_inflateInit2_}, {"inflateReset", (void **) &qz_inflateReset}, + {"deflateInit2_", (void **) &qz_deflateInit2_}, + {"deflateEnd", (void **) &qz_deflateEnd}, + {"deflate", (void **) &qz_deflate}, {NULL, NULL} }; -// Handle for Zlib DLL +/// Handle for Zlib DLL static dllhandle_t zlib_dll = NULL; +#ifdef WIN32 +static HRESULT (WINAPI *qSHGetFolderPath) (HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath); +static dllfunction_t shfolderfuncs[] = +{ + {"SHGetFolderPathA", (void **) &qSHGetFolderPath}, + {NULL, NULL} +}; +static dllhandle_t shfolder_dll = NULL; +#endif /* ==================== @@ -332,8 +405,15 @@ qboolean PK3_OpenLibrary (void) { const char* dllnames [] = { -#ifdef WIN32 +#if defined(WIN64) + "zlib64.dll", +#elif defined(WIN32) +# ifdef ZLIB_USES_WINAPI + "zlibwapi.dll", "zlib.dll", +# else + "zlib1.dll", +# endif #elif defined(MACOSX) "libz.dylib", #else @@ -348,16 +428,21 @@ qboolean PK3_OpenLibrary (void) return true; // Load the DLL - if (! Sys_LoadLibrary (dllnames, &zlib_dll, zlibfuncs)) - { - Con_Printf ("Compressed files support disabled\n"); - return false; - } - - Con_Printf ("Compressed files support enabled\n"); - return true; + return Sys_LoadLibrary (dllnames, &zlib_dll, zlibfuncs); } +/* +==================== +FS_HasZlib + +See if zlib is available +==================== +*/ +qboolean FS_HasZlib(void) +{ + PK3_OpenLibrary(); // to be safe + return (zlib_dll != 0); +} /* ==================== @@ -368,8 +453,8 @@ Extract the end of the central directory from a PK3 package */ qboolean PK3_GetEndOfCentralDir (const char *packfile, int packhandle, pk3_endOfCentralDir_t *eocd) { - long filesize, maxsize; - qbyte *buffer, *ptr; + fs_offset_t filesize, maxsize; + unsigned char *buffer, *ptr; int ind; // Get the package size @@ -382,9 +467,9 @@ qboolean PK3_GetEndOfCentralDir (const char *packfile, int packhandle, pk3_endOf maxsize = filesize; else maxsize = ZIP_MAX_COMMENTS_SIZE + ZIP_END_CDIR_SIZE; - buffer = Mem_Alloc (tempmempool, maxsize); + buffer = (unsigned char *)Mem_Alloc (tempmempool, maxsize); lseek (packhandle, filesize - maxsize, SEEK_SET); - if (read (packhandle, buffer, maxsize) != (ssize_t) maxsize) + if (read (packhandle, buffer, maxsize) != (fs_offset_t) maxsize) { Mem_Free (buffer); return false; @@ -431,14 +516,18 @@ Extract the file list from a PK3 file */ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd) { - qbyte *central_dir, *ptr; + unsigned char *central_dir, *ptr; unsigned int ind; - int remaining; + fs_offset_t remaining; // Load the central directory in memory - central_dir = Mem_Alloc (tempmempool, eocd->cdir_size); + central_dir = (unsigned char *)Mem_Alloc (tempmempool, eocd->cdir_size); lseek (pack->handle, eocd->cdir_offset, SEEK_SET); - read (pack->handle, central_dir, eocd->cdir_size); + if(read (pack->handle, central_dir, eocd->cdir_size) != (ssize_t) eocd->cdir_size) + { + Mem_Free (central_dir); + return -1; + } // Extract the files properties // The parsing is done "by hand" because some fields have variable sizes and @@ -448,7 +537,7 @@ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd) ptr = central_dir; for (ind = 0; ind < eocd->nbentries; ind++) { - size_t namesize, count; + fs_offset_t namesize, count; // Checking the remaining size if (remaining < ZIP_CDIR_CHUNK_BASE_SIZE) @@ -470,12 +559,19 @@ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd) // Check encryption, compression, and attributes // 1st uint8 : general purpose bit flag // Check bits 0 (encryption), 3 (data descriptor after the file), and 5 (compressed patched data (?)) + // + // LordHavoc: bit 3 would be a problem if we were scanning the archive + // but is not a problem in the central directory where the values are + // always real. + // + // bit 3 seems to always be set by the standard Mac OSX zip maker + // // 2nd uint8 : external file attributes // Check bits 3 (file is a directory) and 5 (file is a volume (?)) - if ((ptr[8] & 0x29) == 0 && (ptr[38] & 0x18) == 0) + if ((ptr[8] & 0x21) == 0 && (ptr[38] & 0x18) == 0) { // Still enough bytes for the name? - if ((size_t) remaining < namesize || namesize >= sizeof (*pack->files)) + if (remaining < namesize || namesize >= (int)sizeof (*pack->files)) { Mem_Free (central_dir); return -1; @@ -485,12 +581,11 @@ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd) if (ptr[ZIP_CDIR_CHUNK_BASE_SIZE + namesize - 1] != '/') { char filename [sizeof (pack->files[0].name)]; - size_t offset, packsize, realsize; - packfile_flags_t flags; + fs_offset_t offset, packsize, realsize; + int flags; // Extract the name (strip it if necessary) - if (namesize >= sizeof (filename)) - namesize = sizeof (filename) - 1; + namesize = min(namesize, (int)sizeof (filename) - 1); memcpy (filename, &ptr[ZIP_CDIR_CHUNK_BASE_SIZE], namesize); filename[namesize] = '\0'; @@ -501,6 +596,18 @@ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd) offset = BuffLittleLong (&ptr[42]); packsize = BuffLittleLong (&ptr[20]); realsize = BuffLittleLong (&ptr[24]); + + switch(ptr[5]) // C_VERSION_MADE_BY_1 + { + case 3: // UNIX_ + case 2: // VMS_ + case 16: // BEOS_ + if((BuffLittleShort(&ptr[40]) & 0120000) == 0120000) + // can't use S_ISLNK here, as this has to compile on non-UNIX too + flags |= PACKFILE_FLAG_SYMLINK; + break; + } + FS_AddFileToPack (filename, pack, offset, packsize, realsize, flags); } } @@ -534,37 +641,56 @@ pack_t *FS_LoadPackPK3 (const char *packfile) pack_t *pack; int real_nb_files; +#if _MSC_VER >= 1400 + _sopen_s(&packhandle, packfile, O_RDONLY | O_BINARY, _SH_DENYNO, _S_IREAD | _S_IWRITE); +#else packhandle = open (packfile, O_RDONLY | O_BINARY); +#endif if (packhandle < 0) return NULL; if (! PK3_GetEndOfCentralDir (packfile, packhandle, &eocd)) - Sys_Error ("%s is not a PK3 file", packfile); + { + Con_Printf ("%s is not a PK3 file\n", packfile); + close(packhandle); + return NULL; + } // Multi-volume ZIP archives are NOT allowed if (eocd.disknum != 0 || eocd.cdir_disknum != 0) - Sys_Error ("%s is a multi-volume ZIP archive", packfile); + { + Con_Printf ("%s is a multi-volume ZIP archive\n", packfile); + close(packhandle); + return NULL; + } // We only need to do this test if MAX_FILES_IN_PACK is lesser than 65535 // since eocd.nbentries is an unsigned 16 bits integer #if MAX_FILES_IN_PACK < 65535 if (eocd.nbentries > MAX_FILES_IN_PACK) - Sys_Error ("%s contains too many files (%hu)", packfile, eocd.nbentries); + { + Con_Printf ("%s contains too many files (%hu)\n", packfile, eocd.nbentries); + close(packhandle); + return NULL; + } #endif // Create a package structure in memory - pack = Mem_Alloc(fs_mempool, sizeof (pack_t)); + pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t)); pack->ignorecase = true; // PK3 ignores case strlcpy (pack->filename, packfile, sizeof (pack->filename)); pack->handle = packhandle; pack->numfiles = eocd.nbentries; - pack->files = Mem_Alloc(fs_mempool, eocd.nbentries * sizeof(packfile_t)); - pack->next = packlist; - packlist = pack; + pack->files = (packfile_t *)Mem_Alloc(fs_mempool, eocd.nbentries * sizeof(packfile_t)); real_nb_files = PK3_BuildFileList (pack, &eocd); if (real_nb_files < 0) - Sys_Error ("%s is not a valid PK3 file", packfile); + { + Con_Printf ("%s is not a valid PK3 file\n", packfile); + close(pack->handle); + Mem_Free(pack); + return NULL; + } Con_Printf("Added packfile %s (%i files)\n", packfile, real_nb_files); return pack; @@ -578,25 +704,29 @@ PK3_GetTrueFileOffset Find where the true file data offset is ==================== */ -void PK3_GetTrueFileOffset (packfile_t *pfile, pack_t *pack) +qboolean PK3_GetTrueFileOffset (packfile_t *pfile, pack_t *pack) { - qbyte buffer [ZIP_LOCAL_CHUNK_BASE_SIZE]; - size_t count; + unsigned char buffer [ZIP_LOCAL_CHUNK_BASE_SIZE]; + fs_offset_t count; // Already found? if (pfile->flags & PACKFILE_FLAG_TRUEOFFS) - return; + return true; // Load the local file description lseek (pack->handle, pfile->offset, SEEK_SET); count = read (pack->handle, buffer, ZIP_LOCAL_CHUNK_BASE_SIZE); if (count != ZIP_LOCAL_CHUNK_BASE_SIZE || BuffBigLong (buffer) != ZIP_DATA_HEADER) - Sys_Error ("Can't retrieve file %s in package %s", pfile->name, pack->filename); + { + Con_Printf ("Can't retrieve file %s in package %s\n", pfile->name, pack->filename); + return false; + } // Skip name and extra field pfile->offset += BuffLittleShort (&buffer[26]) + BuffLittleShort (&buffer[28]) + ZIP_LOCAL_CHUNK_BASE_SIZE; pfile->flags |= PACKFILE_FLAG_TRUEOFFS; + return true; } @@ -617,8 +747,8 @@ Add a file to the list of files contained into a package ==================== */ static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack, - size_t offset, size_t packsize, - size_t realsize, packfile_flags_t flags) + fs_offset_t offset, fs_offset_t packsize, + fs_offset_t realsize, int flags) { int (*strcmp_funct) (const char* str1, const char* str2); int left, right, middle; @@ -638,8 +768,7 @@ static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack, // If we found the file, there's a problem if (!diff) - Sys_Error ("Package %s contains the file %s several times\n", - pack->filename, name); + Con_Printf ("Package %s contains the file %s several times\n", pack->filename, name); // If we're too far in the list if (diff > 0) @@ -667,7 +796,7 @@ static packfile_t* FS_AddFileToPack (const char* name, pack_t* pack, ============ FS_CreatePath -Only used for FS_Open. +Only used for FS_OpenRealFile. ============ */ void FS_CreatePath (char *path) @@ -702,9 +831,7 @@ void FS_Path_f (void) for (s=fs_searchpaths ; s ; s=s->next) { if (s->pack) - { Con_Printf("%s (%i files)\n", s->pack->filename, s->pack->numfiles); - } else Con_Printf("%s\n", s->filename); } @@ -714,13 +841,12 @@ void FS_Path_f (void) /* ================= FS_LoadPackPAK - -Takes an explicit (not game tree related) path to a pak file. - -Loads the header and directory, adding the files at the beginning -of the list so they override previous pack files. ================= */ +/*! Takes an explicit (not game tree related) path to a pak file. + *Loads the header and directory, adding the files at the beginning + *of the list so they override previous pack files. + */ pack_t *FS_LoadPackPAK (const char *packfile) { dpackheader_t header; @@ -729,41 +855,66 @@ pack_t *FS_LoadPackPAK (const char *packfile) pack_t *pack; dpackfile_t *info; +#if _MSC_VER >= 1400 + _sopen_s(&packhandle, packfile, O_RDONLY | O_BINARY, _SH_DENYNO, _S_IREAD | _S_IWRITE); +#else packhandle = open (packfile, O_RDONLY | O_BINARY); +#endif if (packhandle < 0) return NULL; - read (packhandle, (void *)&header, sizeof(header)); + if(read (packhandle, (void *)&header, sizeof(header)) != sizeof(header)) + { + Con_Printf ("%s is not a packfile\n", packfile); + close(packhandle); + return NULL; + } if (memcmp(header.id, "PACK", 4)) - Sys_Error ("%s is not a packfile", packfile); + { + Con_Printf ("%s is not a packfile\n", packfile); + close(packhandle); + return NULL; + } header.dirofs = LittleLong (header.dirofs); header.dirlen = LittleLong (header.dirlen); if (header.dirlen % sizeof(dpackfile_t)) - Sys_Error ("%s has an invalid directory size", packfile); + { + Con_Printf ("%s has an invalid directory size\n", packfile); + close(packhandle); + return NULL; + } numpackfiles = header.dirlen / sizeof(dpackfile_t); if (numpackfiles > MAX_FILES_IN_PACK) - Sys_Error ("%s has %i files", packfile, numpackfiles); + { + Con_Printf ("%s has %i files\n", packfile, numpackfiles); + close(packhandle); + return NULL; + } + + info = (dpackfile_t *)Mem_Alloc(tempmempool, sizeof(*info) * numpackfiles); + lseek (packhandle, header.dirofs, SEEK_SET); + if(header.dirlen != read (packhandle, (void *)info, header.dirlen)) + { + Con_Printf("%s is an incomplete PAK, not loading\n", packfile); + Mem_Free(info); + close(packhandle); + return NULL; + } - pack = Mem_Alloc(fs_mempool, sizeof (pack_t)); + pack = (pack_t *)Mem_Alloc(fs_mempool, sizeof (pack_t)); pack->ignorecase = false; // PAK is case sensitive strlcpy (pack->filename, packfile, sizeof (pack->filename)); pack->handle = packhandle; pack->numfiles = 0; - pack->files = Mem_Alloc(fs_mempool, numpackfiles * sizeof(packfile_t)); - pack->next = packlist; - packlist = pack; - - info = Mem_Alloc(tempmempool, sizeof(*info) * numpackfiles); - lseek (packhandle, header.dirofs, SEEK_SET); - read (packhandle, (void *)info, header.dirlen); + pack->files = (packfile_t *)Mem_Alloc(fs_mempool, numpackfiles * sizeof(packfile_t)); // parse the directory for (i = 0;i < numpackfiles;i++) { - size_t offset = LittleLong (info[i].filepos); - size_t size = LittleLong (info[i].filelen); + fs_offset_t offset = LittleLong (info[i].filepos); + fs_offset_t size = LittleLong (info[i].filelen); FS_AddFileToPack (info[i].name, pack, offset, size, size, PACKFILE_FLAG_TRUEOFFS); } @@ -774,6 +925,139 @@ pack_t *FS_LoadPackPAK (const char *packfile) return pack; } +/* +================ +FS_AddPack_Fullpath +================ +*/ +/*! Adds the given pack to the search path. + * The pack type is autodetected by the file extension. + * + * Returns true if the file was successfully added to the + * search path or if it was already included. + * + * If keep_plain_dirs is set, the pack will be added AFTER the first sequence of + * plain directories. + * + */ +static qboolean FS_AddPack_Fullpath(const char *pakfile, const char *shortname, qboolean *already_loaded, qboolean keep_plain_dirs) +{ + searchpath_t *search; + pack_t *pak = NULL; + const char *ext = FS_FileExtension(pakfile); + + for(search = fs_searchpaths; search; search = search->next) + { + if(search->pack && !strcasecmp(search->pack->filename, pakfile)) + { + if(already_loaded) + *already_loaded = true; + return true; // already loaded + } + } + + if(already_loaded) + *already_loaded = false; + + if(!strcasecmp(ext, "pak")) + pak = FS_LoadPackPAK (pakfile); + else if(!strcasecmp(ext, "pk3")) + pak = FS_LoadPackPK3 (pakfile); + else + Con_Printf("\"%s\" does not have a pack extension\n", pakfile); + + if (pak) + { + strlcpy(pak->shortname, shortname, sizeof(pak->shortname)); + //Con_DPrintf(" Registered pack with short name %s\n", shortname); + if(keep_plain_dirs) + { + // find the first item whose next one is a pack or NULL + searchpath_t *insertion_point = 0; + if(fs_searchpaths && !fs_searchpaths->pack) + { + insertion_point = fs_searchpaths; + for(;;) + { + if(!insertion_point->next) + break; + if(insertion_point->next->pack) + break; + insertion_point = insertion_point->next; + } + } + // If insertion_point is NULL, this means that either there is no + // item in the list yet, or that the very first item is a pack. In + // that case, we want to insert at the beginning... + if(!insertion_point) + { + search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t)); + search->pack = pak; + search->next = fs_searchpaths; + fs_searchpaths = search; + } + else + // otherwise we want to append directly after insertion_point. + { + search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t)); + search->pack = pak; + search->next = insertion_point->next; + insertion_point->next = search; + } + } + else + { + search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t)); + search->pack = pak; + search->next = fs_searchpaths; + fs_searchpaths = search; + } + return true; + } + else + { + Con_Printf("unable to load pak \"%s\"\n", pakfile); + return false; + } +} + + +/* +================ +FS_AddPack +================ +*/ +/*! Adds the given pack to the search path and searches for it in the game path. + * The pack type is autodetected by the file extension. + * + * Returns true if the file was successfully added to the + * search path or if it was already included. + * + * If keep_plain_dirs is set, the pack will be added AFTER the first sequence of + * plain directories. + */ +qboolean FS_AddPack(const char *pakfile, qboolean *already_loaded, qboolean keep_plain_dirs) +{ + char fullpath[MAX_QPATH]; + int index; + searchpath_t *search; + + if(already_loaded) + *already_loaded = false; + + // then find the real name... + search = FS_FindFile(pakfile, &index, true); + if(!search || search->pack) + { + Con_Printf("could not find pak \"%s\"\n", pakfile); + return false; + } + + dpsnprintf(fullpath, sizeof(fullpath), "%s%s", search->filename, pakfile); + + return FS_AddPack_Fullpath(fullpath, pakfile, already_loaded, keep_plain_dirs); +} + /* ================ @@ -785,57 +1069,39 @@ then loads and adds pak1.pak pak2.pak ... */ void FS_AddGameDirectory (const char *dir) { - stringlist_t *list, *current; + int i; + stringlist_t list; searchpath_t *search; - pack_t *pak; - char pakfile[MAX_OSPATH]; strlcpy (fs_gamedir, dir, sizeof (fs_gamedir)); - list = listdirectory(dir); + stringlistinit(&list); + listdirectory(&list, "", dir); + stringlistsort(&list); // add any PAK package in the directory - for (current = list;current;current = current->next) + for (i = 0;i < list.numstrings;i++) { - if (matchpattern(current->text, "*.pak", true)) + if (!strcasecmp(FS_FileExtension(list.strings[i]), "pak")) { - dpsnprintf (pakfile, sizeof (pakfile), "%s/%s", dir, current->text); - pak = FS_LoadPackPAK (pakfile); - if (pak) - { - search = Mem_Alloc(fs_mempool, sizeof(searchpath_t)); - search->pack = pak; - search->next = fs_searchpaths; - fs_searchpaths = search; - } - else - Con_Printf("unable to load pak \"%s\"\n", pakfile); + FS_AddPack_Fullpath(list.strings[i], list.strings[i] + strlen(dir), NULL, false); } } - // add any PK3 package in the director - for (current = list;current;current = current->next) + // add any PK3 package in the directory + for (i = 0;i < list.numstrings;i++) { - if (matchpattern(current->text, "*.pk3", true)) + if (!strcasecmp(FS_FileExtension(list.strings[i]), "pk3")) { - dpsnprintf (pakfile, sizeof (pakfile), "%s/%s", dir, current->text); - pak = FS_LoadPackPK3 (pakfile); - if (pak) - { - search = Mem_Alloc(fs_mempool, sizeof(searchpath_t)); - search->pack = pak; - search->next = fs_searchpaths; - fs_searchpaths = search; - } - else - Con_Printf("unable to load pak \"%s\"\n", pakfile); + FS_AddPack_Fullpath(list.strings[i], list.strings[i] + strlen(dir), NULL, false); } } - freedirectory(list); + + stringlistfreecontents(&list); // Add the directory to the search path // (unpacked files have the priority over packed files) - search = Mem_Alloc(fs_mempool, sizeof(searchpath_t)); + search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t)); strlcpy (search->filename, dir, sizeof (search->filename)); search->next = fs_searchpaths; fs_searchpaths = search; @@ -849,19 +1115,11 @@ FS_AddGameHierarchy */ void FS_AddGameHierarchy (const char *dir) { -#ifndef WIN32 - const char *homedir; -#endif - // Add the common game directory - FS_AddGameDirectory (va("%s/%s", fs_basedir, dir)); + FS_AddGameDirectory (va("%s%s/", fs_basedir, dir)); -#ifndef WIN32 - // Add the personal game directory - homedir = getenv ("HOME"); - if (homedir != NULL && homedir[0] != '\0') - FS_AddGameDirectory (va("%s/.%s/%s", homedir, gameuserdirname, dir)); -#endif + if (*fs_userdir) + FS_AddGameDirectory(va("%s%s/", fs_userdir, dir)); } @@ -870,26 +1128,383 @@ void FS_AddGameHierarchy (const char *dir) FS_FileExtension ============ */ -static const char *FS_FileExtension (const char *in) +const char *FS_FileExtension (const char *in) { const char *separator, *backslash, *colon, *dot; separator = strrchr(in, '/'); backslash = strrchr(in, '\\'); - if (separator < backslash) + if (!separator || separator < backslash) separator = backslash; colon = strrchr(in, ':'); - if (separator < colon) + if (!separator || separator < colon) separator = colon; dot = strrchr(in, '.'); - if (dot == NULL || dot < separator) + if (dot == NULL || (separator && (dot < separator))) return ""; return dot + 1; } +/* +============ +FS_FileWithoutPath +============ +*/ +const char *FS_FileWithoutPath (const char *in) +{ + const char *separator, *backslash, *colon; + + separator = strrchr(in, '/'); + backslash = strrchr(in, '\\'); + if (!separator || separator < backslash) + separator = backslash; + colon = strrchr(in, ':'); + if (!separator || separator < colon) + separator = colon; + return separator ? separator + 1 : in; +} + + +/* +================ +FS_ClearSearchPath +================ +*/ +void FS_ClearSearchPath (void) +{ + // unload all packs and directory information, close all pack files + // (if a qfile is still reading a pack it won't be harmed because it used + // dup() to get its own handle already) + while (fs_searchpaths) + { + searchpath_t *search = fs_searchpaths; + fs_searchpaths = search->next; + if (search->pack) + { + // close the file + close(search->pack->handle); + // free any memory associated with it + if (search->pack->files) + Mem_Free(search->pack->files); + Mem_Free(search->pack); + } + Mem_Free(search); + } +} + + +/* +================ +FS_Rescan +================ +*/ +void FS_Rescan (void) +{ + int i; + qboolean fs_modified = false; + char gamedirbuf[MAX_INPUTLINE]; + + FS_ClearSearchPath(); + + // add the game-specific paths + // gamedirname1 (typically id1) + FS_AddGameHierarchy (gamedirname1); + // update the com_modname (used for server info) + strlcpy(com_modname, gamedirname1, sizeof(com_modname)); + + // add the game-specific path, if any + // (only used for mission packs and the like, which should set fs_modified) + if (gamedirname2) + { + fs_modified = true; + FS_AddGameHierarchy (gamedirname2); + } + + // -game + // Adds basedir/gamedir as an override game + // LordHavoc: now supports multiple -game directories + // set the com_modname (reported in server info) + *gamedirbuf = 0; + for (i = 0;i < fs_numgamedirs;i++) + { + fs_modified = true; + FS_AddGameHierarchy (fs_gamedirs[i]); + // update the com_modname (used server info) + strlcpy (com_modname, fs_gamedirs[i], sizeof (com_modname)); + if(i) + strlcat(gamedirbuf, va(" %s", fs_gamedirs[i]), sizeof(gamedirbuf)); + else + strlcpy(gamedirbuf, fs_gamedirs[i], sizeof(gamedirbuf)); + } + Cvar_SetQuick(&cvar_fs_gamedir, gamedirbuf); // so QC or console code can query it + + // set the default screenshot name to either the mod name or the + // gamemode screenshot name + if (strcmp(com_modname, gamedirname1)) + Cvar_SetQuick (&scr_screenshot_name, com_modname); + else + Cvar_SetQuick (&scr_screenshot_name, gamescreenshotname); + + if((i = COM_CheckParm("-modname")) && i < com_argc - 1) + strlcpy(com_modname, com_argv[i+1], sizeof(com_modname)); + + // If "-condebug" is in the command line, remove the previous log file + if (COM_CheckParm ("-condebug") != 0) + unlink (va("%s/qconsole.log", fs_gamedir)); + + // look for the pop.lmp file and set registered to true if it is found + if ((gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE) && !FS_FileExists("gfx/pop.lmp")) + { + if (fs_modified) + Con_Print("Playing shareware version, with modification.\nwarning: most mods require full quake data.\n"); + else + Con_Print("Playing shareware version.\n"); + } + else + { + Cvar_Set ("registered", "1"); + if (gamemode == GAME_NORMAL || gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE) + Con_Print("Playing registered version.\n"); + } + + // unload all wads so that future queries will return the new data + W_UnloadAll(); +} + +void FS_Rescan_f(void) +{ + FS_Rescan(); +} + +/* +================ +FS_ChangeGameDirs +================ +*/ +extern void Host_SaveConfig (void); +extern void Host_LoadConfig_f (void); +qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean complain, qboolean failmissing) +{ + int i; + const char *p; + + if (fs_numgamedirs == numgamedirs) + { + for (i = 0;i < numgamedirs;i++) + if (strcasecmp(fs_gamedirs[i], gamedirs[i])) + break; + if (i == numgamedirs) + return true; // already using this set of gamedirs, do nothing + } + + if (numgamedirs > MAX_GAMEDIRS) + { + if (complain) + Con_Printf("That is too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS); + return false; // too many gamedirs + } + + for (i = 0;i < numgamedirs;i++) + { + // if string is nasty, reject it + p = FS_CheckGameDir(gamedirs[i]); + if(!p) + { + if (complain) + Con_Printf("Nasty gamedir name rejected: %s\n", gamedirs[i]); + return false; // nasty gamedirs + } + if(p == fs_checkgamedir_missing && failmissing) + { + if (complain) + Con_Printf("Gamedir missing: %s%s/\n", fs_basedir, gamedirs[i]); + return false; // missing gamedirs + } + } + + Host_SaveConfig(); + + fs_numgamedirs = numgamedirs; + for (i = 0;i < fs_numgamedirs;i++) + strlcpy(fs_gamedirs[i], gamedirs[i], sizeof(fs_gamedirs[i])); + + // reinitialize filesystem to detect the new paks + FS_Rescan(); + + // exec the new config + Host_LoadConfig_f(); + + // unload all sounds so they will be reloaded from the new files as needed + S_UnloadAllSounds_f(); + + // reinitialize renderer (this reloads hud/console background/etc) + R_Modules_Restart(); + + return true; +} + +/* +================ +FS_GameDir_f +================ +*/ +void FS_GameDir_f (void) +{ + int i; + int numgamedirs; + char gamedirs[MAX_GAMEDIRS][MAX_QPATH]; + + if (Cmd_Argc() < 2) + { + Con_Printf("gamedirs active:"); + for (i = 0;i < fs_numgamedirs;i++) + Con_Printf(" %s", fs_gamedirs[i]); + Con_Printf("\n"); + return; + } + + numgamedirs = Cmd_Argc() - 1; + if (numgamedirs > MAX_GAMEDIRS) + { + Con_Printf("Too many gamedirs (%i > %i)\n", numgamedirs, MAX_GAMEDIRS); + return; + } + + for (i = 0;i < numgamedirs;i++) + strlcpy(gamedirs[i], Cmd_Argv(i+1), sizeof(gamedirs[i])); + + if ((cls.state == ca_connected && !cls.demoplayback) || sv.active) + { + // actually, changing during game would work fine, but would be stupid + Con_Printf("Can not change gamedir while client is connected or server is running!\n"); + return; + } + + // halt demo playback to close the file + CL_Disconnect(); + + FS_ChangeGameDirs(numgamedirs, gamedirs, true, true); +} + +static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean nonblocking); +static const char *FS_SysCheckGameDir(const char *gamedir) +{ + static char buf[8192]; + qboolean success; + qfile_t *f; + stringlist_t list; + fs_offset_t n; + + stringlistinit(&list); + listdirectory(&list, gamedir, ""); + success = list.numstrings > 0; + stringlistfreecontents(&list); + + if(success) + { + f = FS_SysOpen(va("%smodinfo.txt", gamedir), "r", false); + if(f) + { + n = FS_Read (f, buf, sizeof(buf) - 1); + if(n >= 0) + buf[n] = 0; + else + *buf = 0; + FS_Close(f); + } + else + *buf = 0; + return buf; + } + + return NULL; +} + +/* +================ +FS_CheckGameDir +================ +*/ +const char *FS_CheckGameDir(const char *gamedir) +{ + const char *ret; + + if (FS_CheckNastyPath(gamedir, true)) + return NULL; + + ret = FS_SysCheckGameDir(va("%s%s/", fs_userdir, gamedir)); + if(ret) + { + if(!*ret) + { + // get description from basedir + ret = FS_SysCheckGameDir(va("%s%s/", fs_basedir, gamedir)); + if(ret) + return ret; + return ""; + } + return ret; + } + + ret = FS_SysCheckGameDir(va("%s%s/", fs_basedir, gamedir)); + if(ret) + return ret; + + return fs_checkgamedir_missing; +} + +static void FS_ListGameDirs() +{ + stringlist_t list, list2; + int i, j; + const char *info; + + fs_all_gamedirs_count = 0; + if(fs_all_gamedirs) + Mem_Free(fs_all_gamedirs); + + stringlistinit(&list); + listdirectory(&list, va("%s/", fs_basedir), ""); + listdirectory(&list, va("%s/", fs_userdir), ""); + stringlistsort(&list); + + stringlistinit(&list2); + for(i = 0; i < list.numstrings; ++i) + { + if(i) + if(!strcmp(list.strings[i-1], list.strings[i])) + continue; + info = FS_CheckGameDir(list.strings[i]); + if(!info) + continue; + if(info == fs_checkgamedir_missing) + continue; + if(!*info) + continue; + stringlistappend(&list2, list.strings[i]); + } + stringlistfreecontents(&list); + + fs_all_gamedirs = Mem_Alloc(fs_mempool, list2.numstrings * sizeof(*fs_all_gamedirs)); + for(i = 0; i < list2.numstrings; ++i) + { + info = FS_CheckGameDir(list2.strings[i]); + // all this cannot happen any more, but better be safe than sorry + if(!info) + continue; + if(info == fs_checkgamedir_missing) + continue; + if(!*info) + continue; + strlcpy(fs_all_gamedirs[fs_all_gamedirs_count].name, list2.strings[i], sizeof(fs_all_gamedirs[j].name)); + strlcpy(fs_all_gamedirs[fs_all_gamedirs_count].description, info, sizeof(fs_all_gamedirs[j].description)); + ++fs_all_gamedirs_count; + } +} + /* ================ FS_Init @@ -897,18 +1512,114 @@ FS_Init */ void FS_Init (void) { + const char *p; int i; - searchpath_t *search; +#ifdef WIN32 + TCHAR mydocsdir[MAX_PATH + 1]; +#if _MSC_VER >= 1400 + size_t homedirlen; +#endif +#endif + char *homedir; + +#ifdef WIN32 + const char* dllnames [] = + { + "shfolder.dll", // IE 4, or Win NT and higher + NULL + }; + Sys_LoadLibrary(dllnames, &shfolder_dll, shfolderfuncs); + // don't care for the result; if it fails, %USERPROFILE% will be used instead +#endif fs_mempool = Mem_AllocPool("file management", 0, NULL); - strcpy(fs_basedir, "."); - strcpy(fs_gamedir, ""); + // Add the personal game directory + if((i = COM_CheckParm("-userdir")) && i < com_argc - 1) + { + dpsnprintf(fs_userdir, sizeof(fs_userdir), "%s/", com_argv[i+1]); + } + else if(COM_CheckParm("-nohome")) + { + *fs_userdir = 0; + } + else + { +#ifdef WIN32 + if(qSHGetFolderPath && (qSHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, 0, mydocsdir) == S_OK)) + { + dpsnprintf(fs_userdir, sizeof(fs_userdir), "%s/My Games/%s/", mydocsdir, gameuserdirname); + Con_DPrintf("Obtained personal directory %s from SHGetFolderPath\n", fs_userdir); + } + else + { + // use the environment +#if _MSC_VER >= 1400 + _dupenv_s (&homedir, &homedirlen, "USERPROFILE"); +#else + homedir = getenv("USERPROFILE"); +#endif + + if(homedir) + { + dpsnprintf(fs_userdir, sizeof(fs_userdir), "%s/My Documents/My Games/%s/", homedir, gameuserdirname); +#if _MSC_VER >= 1400 + free(homedir); +#endif + Con_DPrintf("Obtained personal directory %s from environment\n", fs_userdir); + } + } + + if(!*fs_userdir) + Con_DPrintf("Could not obtain home directory; not supporting -mygames\n"); +#else + homedir = getenv ("HOME"); + if(homedir) + dpsnprintf(fs_userdir, sizeof(fs_userdir), "%s/.%s/", homedir, gameuserdirname); + + if(!*fs_userdir) + Con_DPrintf("Could not obtain home directory; assuming -nohome\n"); +#endif + +#ifdef WIN32 + if(!COM_CheckParm("-mygames")) + { +#if _MSC_VER >= 1400 + int fd; + _sopen_s(&fd, va("%s%s/config.cfg", fs_basedir, gamedirname1), O_WRONLY | O_CREAT, _SH_DENYNO, _S_IREAD | _S_IWRITE); // note: no O_TRUNC here! +#else + int fd = open (va("%s%s/config.cfg", fs_basedir, gamedirname1), O_WRONLY | O_CREAT, 0666); // note: no O_TRUNC here! +#endif + if(fd >= 0) + { + close(fd); + *fs_userdir = 0; // we have write access to the game dir, so let's use it + } + } +#endif + } + + strlcpy(fs_gamedir, "", sizeof(fs_gamedir)); + +// If the base directory is explicitly defined by the compilation process +#ifdef DP_FS_BASEDIR + strlcpy(fs_basedir, DP_FS_BASEDIR, sizeof(fs_basedir)); +#else + *fs_basedir = 0; #ifdef MACOSX // FIXME: is there a better way to find the directory outside the .app? if (strstr(com_argv[0], ".app/")) - strcpy(fs_basedir, "../../.."); + { + char *split; + + split = strstr(com_argv[0], ".app/"); + while (split > com_argv[0] && *split != '/') + split--; + strlcpy(fs_basedir, com_argv[0], sizeof(fs_basedir)); + fs_basedir[split - com_argv[0]] = 0; + } +#endif #endif PK3_OpenLibrary (); @@ -920,94 +1631,65 @@ void FS_Init (void) if (i && i < com_argc-1) { strlcpy (fs_basedir, com_argv[i+1], sizeof (fs_basedir)); - i = strlen (fs_basedir); + i = (int)strlen (fs_basedir); if (i > 0 && (fs_basedir[i-1] == '\\' || fs_basedir[i-1] == '/')) fs_basedir[i-1] = 0; } - // -path [] ... - // Fully specifies the exact search path, overriding the generated one -// COMMANDLINEOPTION: Filesystem: -path specifies the full search path manually, overriding the generated one, example: -path c:\quake\id1 c:\quake\pak0.pak c:\quake\pak1.pak (not recommended) - i = COM_CheckParm ("-path"); - if (i) - { - fs_modified = true; - while (++i < com_argc) - { - if (!com_argv[i] || com_argv[i][0] == '+' || com_argv[i][0] == '-') - break; + // add a path separator to the end of the basedir if it lacks one + if (fs_basedir[0] && fs_basedir[strlen(fs_basedir) - 1] != '/' && fs_basedir[strlen(fs_basedir) - 1] != '\\') + strlcat(fs_basedir, "/", sizeof(fs_basedir)); - search = Mem_Alloc(fs_mempool, sizeof(searchpath_t)); - if (!strcasecmp (FS_FileExtension(com_argv[i]), "pak")) - { - search->pack = FS_LoadPackPAK (com_argv[i]); - if (!search->pack) - Sys_Error ("Couldn't load packfile: %s", com_argv[i]); - } - else if (!strcasecmp (FS_FileExtension (com_argv[i]), "pk3")) - { - search->pack = FS_LoadPackPK3 (com_argv[i]); - if (!search->pack) - Sys_Error ("Couldn't load packfile: %s", com_argv[i]); - } - else - strlcpy (search->filename, com_argv[i], sizeof (search->filename)); - search->next = fs_searchpaths; - fs_searchpaths = search; - } - return; - } + FS_ListGameDirs(); - // add the game-specific paths - // gamedirname1 (typically id1) - FS_AddGameHierarchy (gamedirname1); + p = FS_CheckGameDir(gamedirname1); + if(!p || p == fs_checkgamedir_missing) + Con_Printf("WARNING: base gamedir %s%s/ not found!\n", fs_basedir, gamedirname1); - // add the game-specific path, if any - if (gamedirname2) + if(gamedirname2) { - fs_modified = true; - FS_AddGameHierarchy (gamedirname2); + p = FS_CheckGameDir(gamedirname2); + if(!p || p == fs_checkgamedir_missing) + Con_Printf("WARNING: base gamedir %s%s/ not found!\n", fs_basedir, gamedirname2); } - // set the com_modname (reported in server info) - strlcpy(com_modname, gamedirname1, sizeof(com_modname)); - // -game // Adds basedir/gamedir as an override game // LordHavoc: now supports multiple -game directories - for (i = 1;i < com_argc;i++) + for (i = 1;i < com_argc && fs_numgamedirs < MAX_GAMEDIRS;i++) { if (!com_argv[i]) continue; if (!strcmp (com_argv[i], "-game") && i < com_argc-1) { i++; - fs_modified = true; - FS_AddGameHierarchy (com_argv[i]); - // update the com_modname - strlcpy (com_modname, com_argv[i], sizeof (com_modname)); + p = FS_CheckGameDir(com_argv[i]); + if(!p) + Sys_Error("Nasty -game name rejected: %s", com_argv[i]); + if(p == fs_checkgamedir_missing) + Con_Printf("WARNING: -game %s%s/ not found!\n", fs_basedir, com_argv[i]); + // add the gamedir to the list of active gamedirs + strlcpy (fs_gamedirs[fs_numgamedirs], com_argv[i], sizeof(fs_gamedirs[fs_numgamedirs])); + fs_numgamedirs++; } } - // If "-condebug" is in the command line, remove the previous log file - if (COM_CheckParm ("-condebug") != 0) - unlink (va("%s/qconsole.log", fs_gamedir)); + // generate the searchpath + FS_Rescan(); } void FS_Init_Commands(void) { Cvar_RegisterVariable (&scr_screenshot_name); - - Cmd_AddCommand ("path", FS_Path_f); - Cmd_AddCommand ("dir", FS_Dir_f); - Cmd_AddCommand ("ls", FS_Ls_f); - - // set the default screenshot name to either the mod name or the - // gamemode screenshot name - if (fs_modified) - Cvar_SetQuick (&scr_screenshot_name, com_modname); - else - Cvar_SetQuick (&scr_screenshot_name, gamescreenshotname); + Cvar_RegisterVariable (&fs_empty_files_in_pack_mark_deletions); + Cvar_RegisterVariable (&cvar_fs_gamedir); + + Cmd_AddCommand ("gamedir", FS_GameDir_f, "changes active gamedir list (can take multiple arguments), not including base directory (example usage: gamedir ctf)"); + Cmd_AddCommand ("fs_rescan", FS_Rescan_f, "rescans filesystem for new pack archives and any other changes"); + Cmd_AddCommand ("path", FS_Path_f, "print searchpath (game directories and archives)"); + Cmd_AddCommand ("dir", FS_Dir_f, "list files in searchpath matching an * filename pattern, one per line"); + Cmd_AddCommand ("ls", FS_Ls_f, "list files in searchpath matching an * filename pattern, multiple per line"); + Cmd_AddCommand ("which", FS_Which_f, "accepts a file name as argument and reports where the file is taken from"); } /* @@ -1017,7 +1699,15 @@ FS_Shutdown */ void FS_Shutdown (void) { + // close all pack files and such + // (hopefully there aren't any other open files, but they'll be cleaned up + // by the OS anyway) + FS_ClearSearchPath(); Mem_FreePool (&fs_mempool); + +#ifdef WIN32 + Sys_UnloadLibrary (&shfolder_dll); +#endif } /* @@ -1068,16 +1758,18 @@ static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean non } } -#ifndef WIN32 if (nonblocking) opt |= O_NONBLOCK; -#endif - file = Mem_Alloc (fs_mempool, sizeof (*file)); + file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file)); memset (file, 0, sizeof (*file)); file->ungetc = EOF; +#if _MSC_VER >= 1400 + _sopen_s(&file->handle, filepath, mod | opt, _SH_DENYNO, _S_IREAD | _S_IWRITE); +#else file->handle = open (filepath, mod | opt, 0666); +#endif if (file->handle < 0) { Mem_Free (file); @@ -1113,7 +1805,8 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) // If we don't have the true offset, get it now if (! (pfile->flags & PACKFILE_FLAG_TRUEOFFS)) - PK3_GetTrueFileOffset (pfile, pack); + if (!PK3_GetTrueFileOffset (pfile, pack)) + return NULL; // No Zlib DLL = no compressed files if (!zlib_dll && (pfile->flags & PACKFILE_FLAG_DEFLATED)) @@ -1121,15 +1814,26 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) Con_Printf("WARNING: can't open the compressed file %s\n" "You need the Zlib DLL to use compressed files\n", pfile->name); - fs_filesize = -1; + return NULL; + } + + // LordHavoc: lseek affects all duplicates of a handle so we do it before + // the dup() call to avoid having to close the dup_handle on error here + if (lseek (pack->handle, pfile->offset, SEEK_SET) == -1) + { + Con_Printf ("FS_OpenPackedFile: can't lseek to %s in %s (offset: %d)\n", + pfile->name, pack->filename, (int) pfile->offset); return NULL; } dup_handle = dup (pack->handle); if (dup_handle < 0) - Sys_Error ("FS_OpenPackedFile: can't dup package's handle (pack: %s)", pack->filename); + { + Con_Printf ("FS_OpenPackedFile: can't dup package's handle (pack: %s)\n", pack->filename); + return NULL; + } - file = Mem_Alloc (fs_mempool, sizeof (*file)); + file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file)); memset (file, 0, sizeof (*file)); file->handle = dup_handle; file->flags = QFILE_FLAG_PACKED; @@ -1138,10 +1842,6 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) file->position = 0; file->ungetc = EOF; - if (lseek (file->handle, file->offset, SEEK_SET) == -1) - Sys_Error ("FS_OpenPackedFile: can't lseek to %s in %s (offset: %d)", - pfile->name, pack->filename, file->offset); - if (pfile->flags & PACKFILE_FLAG_DEFLATED) { ztoolkit_t *ztk; @@ -1149,7 +1849,7 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) file->flags |= QFILE_FLAG_DEFLATED; // We need some more variables - ztk = Mem_Alloc (fs_mempool, sizeof (*ztk)); + ztk = (ztoolkit_t *)Mem_Alloc (fs_mempool, sizeof (*ztk)); ztk->comp_length = pfile->packsize; @@ -1167,7 +1867,12 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) * size of both compressed and uncompressed data */ if (qz_inflateInit2 (&ztk->zstream, -MAX_WBITS) != Z_OK) - Sys_Error ("FS_OpenPackedFile: inflate init error (file: %s)", pfile->name); + { + Con_Printf ("FS_OpenPackedFile: inflate init error (file: %s)\n", pfile->name); + close(dup_handle); + Mem_Free(file); + return NULL; + } ztk->zstream.next_out = file->buff; ztk->zstream.avail_out = sizeof (file->buff); @@ -1175,8 +1880,6 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind) file->ztk = ztk; } - fs_filesize = pfile->realsize; - return file; } @@ -1190,8 +1893,12 @@ Return true if the path should be rejected due to one of the following: or are just not a good idea for a mod to be using. ==================== */ -int FS_CheckNastyPath (const char *path) +int FS_CheckNastyPath (const char *path, qboolean isgamedir) { + // all: never allow an empty path, as for gamedir it would access the parent directory and a non-gamedir path it is just useless + if (!path[0]) + return 2; + // Windows: don't allow \ in filenames (windows-only), period. // (on Windows \ is a directory separator, but / is also supported) if (strstr(path, "\\")) @@ -1208,14 +1915,34 @@ int FS_CheckNastyPath (const char *path) if (strstr(path, "//")) return 1; // non-portable attempt to go to parent directory - // all: don't allow going to current directory (./) or parent directory (../ or /../) - if (strstr(path, "./")) + // all: don't allow going to parent directory (../ or /../) + if (strstr(path, "..")) return 2; // attempt to go outside the game directory // Windows and UNIXes: don't allow absolute paths if (path[0] == '/') return 2; // attempt to go outside the game directory + // 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 + if (strchr(path, '.')) + { + if (isgamedir) + { + // gamedir is entirely path elements, so simply forbid . entirely + return 2; + } + if (strchr(path, '.') < strrchr(path, '/')) + return 2; // possible attempt to go outside the game directory + } + + // all: forbid trailing slash on gamedir + if (isgamedir && path[strlen(path)-1] == '/') + return 2; + + // all: forbid leading dot on any filename for any reason + if (strstr(path, "/.")) + return 2; // attempt to go outside the game directory + // after all these checks we're pretty sure it's a / separated filename // and won't do much if any harm return false; @@ -1262,8 +1989,19 @@ static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet) // Found it if (!diff) { - if (!quiet) - Con_DPrintf("FS_FindFile: %s in %s\n", + if (fs_empty_files_in_pack_mark_deletions.integer && pak->files[middle].realsize == 0) + { + // yes, but the first one is empty so we treat it as not being there + if (!quiet && developer.integer >= 10) + Con_Printf("FS_FindFile: %s is marked as deleted\n", name); + + if (index != NULL) + *index = -1; + return NULL; + } + + if (!quiet && developer.integer >= 10) + Con_Printf("FS_FindFile: %s in %s\n", pak->files[middle].name, pak->filename); if (index != NULL) @@ -1281,11 +2019,11 @@ static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet) else { char netpath[MAX_OSPATH]; - dpsnprintf(netpath, sizeof(netpath), "%s/%s", search->filename, name); + dpsnprintf(netpath, sizeof(netpath), "%s%s", search->filename, name); if (FS_SysFileExists (netpath)) { - if (!quiet) - Con_DPrintf("FS_FindFile: %s\n", netpath); + if (!quiet && developer.integer >= 10) + Con_Printf("FS_FindFile: %s\n", netpath); if (index != NULL) *index = -1; @@ -1294,8 +2032,8 @@ static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet) } } - if (!quiet) - Con_DPrintf("FS_FindFile: can't find %s\n", name); + if (!quiet && developer.integer >= 10) + Con_Printf("FS_FindFile: can't find %s\n", name); if (index != NULL) *index = -1; @@ -1308,11 +2046,9 @@ static searchpath_t *FS_FindFile (const char *name, int* index, qboolean quiet) FS_OpenReadFile Look for a file in the search paths and open it in read-only mode - -Sets fs_filesize =========== */ -qfile_t *FS_OpenReadFile (const char *filename, qboolean quiet, qboolean nonblocking) +qfile_t *FS_OpenReadFile (const char *filename, qboolean quiet, qboolean nonblocking, int symlinkLevels) { searchpath_t *search; int pack_ind; @@ -1321,20 +2057,91 @@ qfile_t *FS_OpenReadFile (const char *filename, qboolean quiet, qboolean nonbloc // Not found? if (search == NULL) - { - fs_filesize = -1; return NULL; - } // Found in the filesystem? if (pack_ind < 0) { char path [MAX_OSPATH]; - dpsnprintf (path, sizeof (path), "%s/%s", search->filename, filename); + dpsnprintf (path, sizeof (path), "%s%s", search->filename, filename); return FS_SysOpen (path, "rb", nonblocking); } // So, we found it in a package... + + // Is it a PK3 symlink? + // TODO also handle directory symlinks by parsing the whole structure... + // but heck, file symlinks are good enough for now + if(search->pack->files[pack_ind].flags & PACKFILE_FLAG_SYMLINK) + { + if(symlinkLevels <= 0) + { + Con_Printf("symlink: %s: too many levels of symbolic links\n", filename); + return NULL; + } + else + { + char linkbuf[MAX_QPATH]; + fs_offset_t count; + qfile_t *linkfile = FS_OpenPackedFile (search->pack, pack_ind); + const char *mergeslash; + char *mergestart; + + if(!linkfile) + return NULL; + count = FS_Read(linkfile, linkbuf, sizeof(linkbuf) - 1); + FS_Close(linkfile); + if(count < 0) + return NULL; + linkbuf[count] = 0; + + // Now combine the paths... + mergeslash = strrchr(filename, '/'); + mergestart = linkbuf; + if(!mergeslash) + mergeslash = filename; + while(!strncmp(mergestart, "../", 3)) + { + mergestart += 3; + while(mergeslash > filename) + { + --mergeslash; + if(*mergeslash == '/') + break; + } + } + // Now, mergestart will point to the path to be appended, and mergeslash points to where it should be appended + if(mergeslash == filename) + { + // Either mergeslash == filename, then we just replace the name (done below) + } + else + { + // Or, we append the name after mergeslash; + // or rather, we can also shift the linkbuf so we can put everything up to and including mergeslash first + int spaceNeeded = mergeslash - filename + 1; + int spaceRemoved = mergestart - linkbuf; + if(count - spaceRemoved + spaceNeeded >= MAX_QPATH) + { + Con_DPrintf("symlink: too long path rejected\n"); + return NULL; + } + memmove(linkbuf + spaceNeeded, linkbuf + spaceRemoved, count - spaceRemoved); + memcpy(linkbuf, filename, spaceNeeded); + linkbuf[count - spaceRemoved + spaceNeeded] = 0; + mergestart = linkbuf; + } + if (!quiet && developer_loading.integer) + Con_DPrintf("symlink: %s -> %s\n", filename, mergestart); + if(FS_CheckNastyPath (mergestart, false)) + { + Con_DPrintf("symlink: nasty path %s rejected\n", mergestart); + return NULL; + } + return FS_OpenReadFile(mergestart, quiet, nonblocking, symlinkLevels - 1); + } + } + return FS_OpenPackedFile (search->pack, pack_ind); } @@ -1349,44 +2156,70 @@ MAIN PUBLIC FUNCTIONS /* ==================== -FS_Open +FS_OpenRealFile + +Open a file in the userpath. The syntax is the same as fopen +Used for savegame scanning in menu, and all file writing. +==================== +*/ +qfile_t* FS_OpenRealFile (const char* filepath, const char* mode, qboolean quiet) +{ + char real_path [MAX_OSPATH]; + + if (FS_CheckNastyPath(filepath, false)) + { + Con_Printf("FS_OpenRealFile(\"%s\", \"%s\", %s): nasty filename rejected\n", filepath, mode, quiet ? "true" : "false"); + return NULL; + } + + dpsnprintf (real_path, sizeof (real_path), "%s/%s", fs_gamedir, filepath); + + // If the file is opened in "write", "append", or "read/write" mode, + // create directories up to the file. + if (mode[0] == 'w' || mode[0] == 'a' || strchr (mode, '+')) + FS_CreatePath (real_path); + return FS_SysOpen (real_path, mode, false); +} + + +/* +==================== +FS_OpenVirtualFile Open a file. The syntax is the same as fopen ==================== */ -qfile_t* FS_Open (const char* filepath, const char* mode, qboolean quiet, qboolean nonblocking) +qfile_t* FS_OpenVirtualFile (const char* filepath, qboolean quiet) { - qfile_t* file; - - if (FS_CheckNastyPath(filepath)) + if (FS_CheckNastyPath(filepath, false)) { - Con_Printf("FS_Open(\"%s\", \"%s\", %s): nasty filename rejected\n", filepath, mode, quiet ? "true" : "false"); + Con_Printf("FS_OpenVirtualFile(\"%s\", %s): nasty filename rejected\n", filepath, quiet ? "true" : "false"); return NULL; } - // If the file is opened in "write", "append", or "read/write" mode - if (mode[0] == 'w' || mode[0] == 'a' || strchr (mode, '+')) - { - char real_path [MAX_OSPATH]; - - // Open the file on disk directly - dpsnprintf (real_path, sizeof (real_path), "%s/%s", fs_gamedir, filepath); - - // Create directories up to the file - FS_CreatePath (real_path); + return FS_OpenReadFile (filepath, quiet, false, 16); +} - return FS_SysOpen (real_path, mode, nonblocking); - } - // Else, we look at the various search paths and open the file in read-only mode - file = FS_OpenReadFile (filepath, quiet, nonblocking); - if (file != NULL) - fs_filesize = file->real_length; +/* +==================== +FS_FileFromData +Open a file. The syntax is the same as fopen +==================== +*/ +qfile_t* FS_FileFromData (const unsigned char *data, const size_t size, qboolean quiet) +{ + qfile_t* file; + file = (qfile_t *)Mem_Alloc (fs_mempool, sizeof (*file)); + memset (file, 0, sizeof (*file)); + file->flags = QFILE_FLAG_DATA; + file->ungetc = EOF; + file->real_length = size; + file->data = data; return file; } - /* ==================== FS_Close @@ -1396,6 +2229,12 @@ Close a file */ int FS_Close (qfile_t* file) { + if(file->flags & QFILE_FLAG_DATA) + { + Mem_Free(file); + return 0; + } + if (close (file->handle)) return EOF; @@ -1417,9 +2256,9 @@ FS_Write Write "datasize" bytes into a file ==================== */ -size_t FS_Write (qfile_t* file, const void* data, size_t datasize) +fs_offset_t FS_Write (qfile_t* file, const void* data, size_t datasize) { - ssize_t result; + fs_offset_t result; // If necessary, seek to the exact file position we're supposed to be if (file->buff_ind != file->buff_len) @@ -1429,7 +2268,7 @@ size_t FS_Write (qfile_t* file, const void* data, size_t datasize) FS_Purge (file); // Write the buffer and update the position - result = write (file->handle, data, datasize); + result = write (file->handle, data, (fs_offset_t)datasize); file->position = lseek (file->handle, 0, SEEK_CUR); if (file->real_length < file->position) file->real_length = file->position; @@ -1448,9 +2287,9 @@ FS_Read Read up to "buffersize" bytes from a file ==================== */ -size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) +fs_offset_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) { - size_t count, done; + fs_offset_t count, done; if (buffersize == 0) return 0; @@ -1466,16 +2305,26 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) else done = 0; + if(file->flags & QFILE_FLAG_DATA) + { + size_t left = file->real_length - file->position; + if(buffersize > left) + buffersize = left; + memcpy(buffer, file->data + file->position, buffersize); + file->position += buffersize; + return buffersize; + } + // First, we copy as many bytes as we can from "buff" if (file->buff_ind < file->buff_len) { count = file->buff_len - file->buff_ind; + count = ((fs_offset_t)buffersize > count) ? count : (fs_offset_t)buffersize; + done += count; + memcpy (buffer, &file->buff[file->buff_ind], count); + file->buff_ind += count; - done += (buffersize > count) ? count : buffersize; - memcpy (buffer, &file->buff[file->buff_ind], done); - file->buff_ind += done; - - buffersize -= done; + buffersize -= count; if (buffersize == 0) return done; } @@ -1485,7 +2334,7 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) // If the file isn't compressed if (! (file->flags & QFILE_FLAG_DEFLATED)) { - int nb; + fs_offset_t nb; // We must take care to not read after the end of the file count = file->real_length - file->position; @@ -1493,10 +2342,10 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) // If we have a lot of data to get, put them directly into "buffer" if (buffersize > sizeof (file->buff) / 2) { - if (count > buffersize) - count = buffersize; + if (count > (fs_offset_t)buffersize) + count = (fs_offset_t)buffersize; lseek (file->handle, file->offset + file->position, SEEK_SET); - nb = read (file->handle, &((qbyte*)buffer)[done], count); + nb = read (file->handle, &((unsigned char*)buffer)[done], count); if (nb > 0) { done += nb; @@ -1508,8 +2357,8 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) } else { - if (count > sizeof (file->buff)) - count = sizeof (file->buff); + if (count > (fs_offset_t)sizeof (file->buff)) + count = (fs_offset_t)sizeof (file->buff); lseek (file->handle, file->offset + file->position, SEEK_SET); nb = read (file->handle, file->buff, count); if (nb > 0) @@ -1518,8 +2367,8 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) file->position += nb; // Copy the requested data in "buffer" (as much as we can) - count = (buffersize > file->buff_len) ? file->buff_len : buffersize; - memcpy (&((qbyte*)buffer)[done], file->buff, count); + count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize; + memcpy (&((unsigned char*)buffer)[done], file->buff, count); file->buff_ind = count; done += count; } @@ -1544,12 +2393,15 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) if (file->position == file->real_length) return done; - count = ztk->comp_length - ztk->in_position; - if (count > sizeof (ztk->input)) - count = sizeof (ztk->input); - lseek (file->handle, file->offset + ztk->in_position, SEEK_SET); - if (read (file->handle, ztk->input, count) != (ssize_t)count) - Sys_Error ("FS_Read: unexpected end of file"); + count = (fs_offset_t)(ztk->comp_length - ztk->in_position); + if (count > (fs_offset_t)sizeof (ztk->input)) + count = (fs_offset_t)sizeof (ztk->input); + lseek (file->handle, file->offset + (fs_offset_t)ztk->in_position, SEEK_SET); + if (read (file->handle, ztk->input, count) != count) + { + Con_Printf ("FS_Read: unexpected end of file\n"); + break; + } ztk->in_ind = 0; ztk->in_len = count; @@ -1557,7 +2409,7 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) } ztk->zstream.next_in = &ztk->input[ztk->in_ind]; - ztk->zstream.avail_in = ztk->in_len - ztk->in_ind; + ztk->zstream.avail_in = (unsigned int)(ztk->in_len - ztk->in_ind); // Now that we are sure we have compressed data available, we need to determine // if it's better to inflate it in "file->buff" or directly in "buffer" @@ -1569,30 +2421,36 @@ size_t FS_Read (qfile_t* file, void* buffer, size_t buffersize) ztk->zstream.avail_out = sizeof (file->buff); error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH); if (error != Z_OK && error != Z_STREAM_END) - Sys_Error ("Can't inflate file"); + { + Con_Printf ("FS_Read: Can't inflate file\n"); + break; + } ztk->in_ind = ztk->in_len - ztk->zstream.avail_in; - file->buff_len = sizeof (file->buff) - ztk->zstream.avail_out; + file->buff_len = (fs_offset_t)sizeof (file->buff) - ztk->zstream.avail_out; file->position += file->buff_len; // Copy the requested data in "buffer" (as much as we can) - count = (buffersize > file->buff_len) ? file->buff_len : buffersize; - memcpy (&((qbyte*)buffer)[done], file->buff, count); + count = (fs_offset_t)buffersize > file->buff_len ? file->buff_len : (fs_offset_t)buffersize; + memcpy (&((unsigned char*)buffer)[done], file->buff, count); file->buff_ind = count; } // Else, we inflate directly in "buffer" else { - ztk->zstream.next_out = &((qbyte*)buffer)[done]; - ztk->zstream.avail_out = buffersize; + ztk->zstream.next_out = &((unsigned char*)buffer)[done]; + ztk->zstream.avail_out = (unsigned int)buffersize; error = qz_inflate (&ztk->zstream, Z_SYNC_FLUSH); if (error != Z_OK && error != Z_STREAM_END) - Sys_Error ("Can't inflate file"); + { + Con_Printf ("FS_Read: Can't inflate file\n"); + break; + } ztk->in_ind = ztk->in_len - ztk->zstream.avail_in; // How much data did it inflate? - count = buffersize - ztk->zstream.avail_out; + count = (fs_offset_t)(buffersize - ztk->zstream.avail_out); file->position += count; // Purge cached data @@ -1616,7 +2474,7 @@ Print a string into a file */ int FS_Print (qfile_t* file, const char *msg) { - return FS_Write (file, msg, strlen (msg)); + return (int)FS_Write (file, msg, strlen (msg)); } /* @@ -1649,18 +2507,17 @@ Print a string into a file int FS_VPrintf (qfile_t* file, const char* format, va_list ap) { int len; - size_t buff_size; - char *tempbuff = NULL; + fs_offset_t buff_size = MAX_INPUTLINE; + char *tempbuff; - buff_size = 1024; - tempbuff = Mem_Alloc (tempmempool, buff_size); - len = dpvsnprintf (tempbuff, buff_size, format, ap); - while (len < 0) + for (;;) { + tempbuff = (char *)Mem_Alloc (tempmempool, buff_size); + len = dpvsnprintf (tempbuff, buff_size, format, ap); + if (len >= 0 && len < buff_size) + break; Mem_Free (tempbuff); buff_size *= 2; - tempbuff = Mem_Alloc (tempmempool, buff_size); - len = dpvsnprintf (tempbuff, buff_size, format, ap); } len = write (file->handle, tempbuff, len); @@ -1679,7 +2536,7 @@ Get the next character of a file */ int FS_Getc (qfile_t* file) { - char c; + unsigned char c; if (FS_Read (file, &c, 1) != 1) return EOF; @@ -1713,11 +2570,11 @@ FS_Seek Move the position index in a file ==================== */ -int FS_Seek (qfile_t* file, long offset, int whence) +int FS_Seek (qfile_t* file, fs_offset_t offset, int whence) { ztoolkit_t *ztk; - qbyte* buffer; - size_t buffersize; + unsigned char* buffer; + fs_offset_t buffersize; // Compute the file offset switch (whence) @@ -1736,12 +2593,17 @@ int FS_Seek (qfile_t* file, long offset, int whence) default: return -1; } - if (offset < 0 || offset > (long) file->real_length) + if (offset < 0 || offset > file->real_length) return -1; + if(file->flags & QFILE_FLAG_DATA) + { + file->position = offset; + return 0; + } + // If we have the data in our read buffer, we don't need to actually seek - if (file->position - file->buff_len <= (size_t)offset && - (size_t)offset <= file->position) + if (file->position - file->buff_len <= offset && offset <= file->position) { file->buff_ind = offset + file->buff_len - file->position; return 0; @@ -1764,7 +2626,7 @@ int FS_Seek (qfile_t* file, long offset, int whence) ztk = file->ztk; // If we have to go back in the file, we need to restart from the beginning - if ((size_t)offset <= file->position) + if (offset <= file->position) { ztk->in_ind = 0; ztk->in_len = 0; @@ -1780,13 +2642,13 @@ int FS_Seek (qfile_t* file, long offset, int whence) // We need a big buffer to force inflating into it directly buffersize = 2 * sizeof (file->buff); - buffer = Mem_Alloc (tempmempool, buffersize); + buffer = (unsigned char *)Mem_Alloc (tempmempool, buffersize); // Skip all data until we reach the requested offset - while ((size_t)offset > file->position) + while (offset > file->position) { - size_t diff = offset - file->position; - size_t count, len; + fs_offset_t diff = offset - file->position; + fs_offset_t count, len; count = (diff > buffersize) ? buffersize : diff; len = FS_Read (file, buffer, count); @@ -1809,12 +2671,25 @@ FS_Tell Give the current position in a file ==================== */ -long FS_Tell (qfile_t* file) +fs_offset_t FS_Tell (qfile_t* file) { return file->position - file->buff_len + file->buff_ind; } +/* +==================== +FS_FileSize + +Give the total size of a file +==================== +*/ +fs_offset_t FS_FileSize (qfile_t* file) +{ + return file->real_length; +} + + /* ==================== FS_Purge @@ -1838,21 +2713,33 @@ Filename are relative to the quake directory. Always appends a 0 byte. ============ */ -qbyte *FS_LoadFile (const char *path, mempool_t *pool, qboolean quiet) +unsigned char *FS_LoadFile (const char *path, mempool_t *pool, qboolean quiet, fs_offset_t *filesizepointer) { qfile_t *file; - qbyte *buf; + unsigned char *buf = NULL; + fs_offset_t filesize = 0; - file = FS_Open (path, "rb", quiet, false); - if (!file) - return NULL; - - buf = Mem_Alloc (pool, fs_filesize + 1); - buf[fs_filesize] = '\0'; + file = FS_OpenVirtualFile(path, quiet); + if (file) + { + filesize = file->real_length; + if(filesize < 0) + { + Con_Printf("FS_LoadFile(\"%s\", pool, %s, filesizepointer): trying to open a non-regular file\n", path, quiet ? "true" : "false"); + FS_Close(file); + return NULL; + } - FS_Read (file, buf, fs_filesize); - FS_Close (file); + buf = (unsigned char *)Mem_Alloc (pool, filesize + 1); + buf[filesize] = '\0'; + FS_Read (file, buf, filesize); + FS_Close (file); + if (developer_loadfile.integer) + Con_Printf("loaded file \"%s\" (%u bytes)\n", path, (unsigned int)filesize); + } + if (filesizepointer) + *filesizepointer = filesize; return buf; } @@ -1864,18 +2751,18 @@ FS_WriteFile The filename will be prefixed by the current game directory ============ */ -qboolean FS_WriteFile (const char *filename, void *data, int len) +qboolean FS_WriteFile (const char *filename, void *data, fs_offset_t len) { qfile_t *file; - file = FS_Open (filename, "wb", false, false); + file = FS_OpenRealFile(filename, "wb", false); if (!file) { Con_Printf("FS_WriteFile: failed on %s\n", filename); return false; } - Con_DPrintf("FS_WriteFile: %s\n", filename); + Con_DPrintf("FS_WriteFile: %s (%u bytes)\n", filename, (unsigned int)len); FS_Write (file, data, len); FS_Close (file); return true; @@ -1898,17 +2785,19 @@ FS_StripExtension void FS_StripExtension (const char *in, char *out, size_t size_out) { char *last = NULL; + char currentchar; if (size_out == 0) return; - while (*in && size_out > 1) + while ((currentchar = *in) && size_out > 1) { - if (*in == '.') + if (currentchar == '.') last = out; - else if (*in == '/' || *in == '\\' || *in == ':') + else if (currentchar == '/' || currentchar == '\\' || currentchar == ':') last = NULL; - *out++ = *in++; + *out++ = currentchar; + in++; size_out--; } if (last) @@ -1942,6 +2831,30 @@ void FS_DefaultExtension (char *path, const char *extension, size_t size_path) } +/* +================== +FS_FileType + +Look for a file in the packages and in the filesystem +================== +*/ +int FS_FileType (const char *filename) +{ + searchpath_t *search; + char fullpath[MAX_QPATH]; + + search = FS_FindFile (filename, NULL, true); + if(!search) + return FS_FILETYPE_NONE; + + if(search->pack) + return FS_FILETYPE_FILE; // TODO can't check directories in paks yet, maybe later + + dpsnprintf(fullpath, sizeof(fullpath), "%s%s", search->filename, filename); + return FS_SysFileType(fullpath); +} + + /* ================== FS_FileExists @@ -1962,28 +2875,41 @@ FS_SysFileExists Look for a file in the filesystem only ================== */ -qboolean FS_SysFileExists (const char *path) +int FS_SysFileType (const char *path) { #if WIN32 - int desc; +// Sajt - some older sdks are missing this define +# ifndef INVALID_FILE_ATTRIBUTES +# define INVALID_FILE_ATTRIBUTES ((DWORD)-1) +# endif - // TODO: use another function instead, to avoid opening the file - desc = open (path, O_RDONLY | O_BINARY); - if (desc < 0) - return false; + DWORD result = GetFileAttributes(path); - close (desc); - return true; + if(result == INVALID_FILE_ATTRIBUTES) + return FS_FILETYPE_NONE; + + if(result & FILE_ATTRIBUTE_DIRECTORY) + return FS_FILETYPE_DIRECTORY; + + return FS_FILETYPE_FILE; #else struct stat buf; if (stat (path,&buf) == -1) - return false; + return FS_FILETYPE_NONE; - return true; + if(S_ISDIR(buf.st_mode)) + return FS_FILETYPE_DIRECTORY; + + return FS_FILETYPE_FILE; #endif } +qboolean FS_SysFileExists (const char *path) +{ + return FS_SysFileType (path) != FS_FILETYPE_NONE; +} + void FS_mkdir (const char *path) { #if WIN32 @@ -2005,34 +2931,32 @@ fssearch_t *FS_Search(const char *pattern, int caseinsensitive, int quiet) fssearch_t *search; searchpath_t *searchpath; pack_t *pak; - int i, basepathlength, numfiles, numchars; - stringlist_t *dir, *dirfile, *liststart, *listcurrent, *listtemp; + int i, basepathlength, numfiles, numchars, resultlistindex, dirlistindex; + stringlist_t resultlist; + stringlist_t dirlist; const char *slash, *backslash, *colon, *separator; char *basepath; - char netpath[MAX_OSPATH]; char temp[MAX_OSPATH]; - while(!strncmp(pattern, "./", 2)) - pattern += 2; - while(!strncmp(pattern, ".\\", 2)) - pattern += 2; + for (i = 0;pattern[i] == '.' || pattern[i] == ':' || pattern[i] == '/' || pattern[i] == '\\';i++) + ; + + if (i > 0) + { + Con_Printf("Don't use punctuation at the beginning of a search pattern!\n"); + return NULL; + } + stringlistinit(&resultlist); + stringlistinit(&dirlist); search = NULL; - liststart = NULL; - listcurrent = NULL; - listtemp = NULL; slash = strrchr(pattern, '/'); backslash = strrchr(pattern, '\\'); colon = strrchr(pattern, ':'); - separator = pattern; - if (separator < slash) - separator = slash; - if (separator < backslash) - separator = backslash; - if (separator < colon) - separator = colon; - basepathlength = separator - pattern; - basepath = Mem_Alloc (tempmempool, basepathlength + 1); + separator = max(slash, backslash); + separator = max(separator, colon); + basepathlength = separator ? (separator + 1 - pattern) : 0; + basepath = (char *)Mem_Alloc (tempmempool, basepathlength + 1); if (basepathlength) memcpy(basepath, pattern, basepathlength); basepath[basepathlength] = 0; @@ -2047,21 +2971,19 @@ fssearch_t *FS_Search(const char *pattern, int caseinsensitive, int quiet) pak = searchpath->pack; for (i = 0;i < pak->numfiles;i++) { - strcpy(temp, pak->files[i].name); + strlcpy(temp, pak->files[i].name, sizeof(temp)); while (temp[0]) { if (matchpattern(temp, (char *)pattern, true)) { - for (listtemp = liststart;listtemp;listtemp = listtemp->next) - if (!strcmp(listtemp->text, temp)) + for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++) + if (!strcmp(resultlist.strings[resultlistindex], temp)) break; - if (listtemp == NULL) + if (resultlistindex == resultlist.numstrings) { - listcurrent = stringlistappend(listcurrent, temp); - if (liststart == NULL) - liststart = listcurrent; - if (!quiet) - Con_DPrintf("SearchPackFile: %s : %s\n", pak->filename, temp); + stringlistappend(&resultlist, temp); + if (!quiet && developer_loading.integer) + Con_Printf("SearchPackFile: %s : %s\n", pak->filename, temp); } } // strip off one path element at a time until empty @@ -2082,59 +3004,121 @@ fssearch_t *FS_Search(const char *pattern, int caseinsensitive, int quiet) } else { - // get a directory listing and look at each name - dpsnprintf(netpath, sizeof (netpath), "%s/%s", searchpath->filename, basepath); - if ((dir = listdirectory(netpath))) + stringlist_t matchedSet, foundSet; + const char *start = pattern; + + stringlistinit(&matchedSet); + stringlistinit(&foundSet); + // add a first entry to the set + stringlistappend(&matchedSet, ""); + // iterate through pattern's path + while (*start) { - for (dirfile = dir;dirfile;dirfile = dirfile->next) + const char *asterisk, *wildcard, *nextseparator, *prevseparator; + char subpath[MAX_OSPATH]; + char subpattern[MAX_OSPATH]; + + // find the next wildcard + wildcard = strchr(start, '?'); + asterisk = strchr(start, '*'); + if (asterisk && (!wildcard || asterisk < wildcard)) { - dpsnprintf(temp, sizeof(temp), "%s/%s", basepath, dirfile->text); - if (matchpattern(temp, (char *)pattern, true)) + wildcard = asterisk; + } + + if (wildcard) + { + nextseparator = strchr( wildcard, '/' ); + } + else + { + nextseparator = NULL; + } + + if( !nextseparator ) { + nextseparator = start + strlen( start ); + } + + // prevseparator points past the '/' right before the wildcard and nextseparator at the one following it (or at the end of the string) + // copy everything up except nextseperator + strlcpy(subpattern, pattern, min(sizeof(subpattern), (size_t) (nextseparator - pattern + 1))); + // find the last '/' before the wildcard + prevseparator = strrchr( subpattern, '/' ); + if (!prevseparator) + prevseparator = subpattern; + else + prevseparator++; + // copy everything from start to the previous including the '/' (before the wildcard) + // everything up to start is already included in the path of matchedSet's entries + strlcpy(subpath, start, min(sizeof(subpath), (size_t) ((prevseparator - subpattern) - (start - pattern) + 1))); + + // for each entry in matchedSet try to open the subdirectories specified in subpath + for( dirlistindex = 0 ; dirlistindex < matchedSet.numstrings ; dirlistindex++ ) { + strlcpy( temp, matchedSet.strings[ dirlistindex ], sizeof(temp) ); + strlcat( temp, subpath, sizeof(temp) ); + listdirectory( &foundSet, searchpath->filename, temp ); + } + if( dirlistindex == 0 ) { + break; + } + // reset the current result set + stringlistfreecontents( &matchedSet ); + // match against the pattern + for( dirlistindex = 0 ; dirlistindex < foundSet.numstrings ; dirlistindex++ ) { + const char *direntry = foundSet.strings[ dirlistindex ]; + if (matchpattern(direntry, subpattern, true)) { + stringlistappend( &matchedSet, direntry ); + } + } + stringlistfreecontents( &foundSet ); + + start = nextseparator; + } + + for (dirlistindex = 0;dirlistindex < matchedSet.numstrings;dirlistindex++) + { + const char *temp = matchedSet.strings[dirlistindex]; + if (matchpattern(temp, (char *)pattern, true)) + { + for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++) + if (!strcmp(resultlist.strings[resultlistindex], temp)) + break; + if (resultlistindex == resultlist.numstrings) { - for (listtemp = liststart;listtemp;listtemp = listtemp->next) - if (!strcmp(listtemp->text, temp)) - break; - if (listtemp == NULL) - { - listcurrent = stringlistappend(listcurrent, temp); - if (liststart == NULL) - liststart = listcurrent; - if (!quiet) - Con_DPrintf("SearchDirFile: %s\n", temp); - } + stringlistappend(&resultlist, temp); + if (!quiet && developer_loading.integer) + Con_Printf("SearchDirFile: %s\n", temp); } } - freedirectory(dir); } + stringlistfreecontents( &matchedSet ); } } - if (liststart) + if (resultlist.numstrings) { - liststart = stringlistsort(liststart); - numfiles = 0; + stringlistsort(&resultlist); + numfiles = resultlist.numstrings; numchars = 0; - for (listtemp = liststart;listtemp;listtemp = listtemp->next) - { - numfiles++; - numchars += strlen(listtemp->text) + 1; - } - search = Z_Malloc(sizeof(fssearch_t) + numchars + numfiles * sizeof(char *)); + for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++) + numchars += (int)strlen(resultlist.strings[resultlistindex]) + 1; + search = (fssearch_t *)Z_Malloc(sizeof(fssearch_t) + numchars + numfiles * sizeof(char *)); search->filenames = (char **)((char *)search + sizeof(fssearch_t)); search->filenamesbuffer = (char *)((char *)search + sizeof(fssearch_t) + numfiles * sizeof(char *)); - search->numfilenames = numfiles; + search->numfilenames = (int)numfiles; numfiles = 0; numchars = 0; - for (listtemp = liststart;listtemp;listtemp = listtemp->next) + for (resultlistindex = 0;resultlistindex < resultlist.numstrings;resultlistindex++) { + size_t textlen; search->filenames[numfiles] = search->filenamesbuffer + numchars; - strcpy(search->filenames[numfiles], listtemp->text); + textlen = strlen(resultlist.strings[resultlistindex]) + 1; + memcpy(search->filenames[numfiles], resultlist.strings[resultlistindex], textlen); numfiles++; - numchars += strlen(listtemp->text) + 1; + numchars += (int)textlen; } - if (liststart) - stringlistfree(liststart); } + stringlistfreecontents(&resultlist); Mem_Free(basepath); return search; @@ -2155,7 +3139,7 @@ int FS_ListDirectory(const char *pattern, int oneperline) int linebufpos; int i, j, k, l; const char *name; - char linebuf[4096]; + char linebuf[MAX_INPUTLINE]; fssearch_t *search; search = FS_Search(pattern, true, true); if (!search) @@ -2171,7 +3155,7 @@ int FS_ListDirectory(const char *pattern, int oneperline) columnwidth = 0; for (i = 0;i < numfiles;i++) { - l = strlen(search->filenames[i]); + l = (int)strlen(search->filenames[i]); if (columnwidth < l) columnwidth = l; } @@ -2192,11 +3176,11 @@ int FS_ListDirectory(const char *pattern, int oneperline) if (l < numfiles) { name = search->filenames[l]; - for (j = 0;name[j] && j < (int)sizeof(linebuf) - 1;j++) + for (j = 0;name[j] && linebufpos + 1 < (int)sizeof(linebuf);j++) linebuf[linebufpos++] = name[j]; // space out name unless it's the last on the line - if (k < (numcolumns - 1) && l < (numfiles - 1)) - for (;j < columnwidth && j < (int)sizeof(linebuf) - 1;j++) + if (k + 1 < numcolumns && l + 1 < numfiles) + for (;j < columnwidth && linebufpos + 1 < (int)sizeof(linebuf);j++) linebuf[linebufpos++] = ' '; } } @@ -2211,7 +3195,7 @@ int FS_ListDirectory(const char *pattern, int oneperline) for (i = 0;i < numfiles;i++) Con_Printf("%s\n", search->filenames[i]); FS_FreeSearch(search); - return numfiles; + return (int)numfiles; } static void FS_ListDirectoryCmd (const char* cmdname, int oneperline) @@ -2240,3 +3224,288 @@ void FS_Ls_f(void) FS_ListDirectoryCmd("ls", false); } +void FS_Which_f(void) +{ + const char *filename; + int index; + searchpath_t *sp; + if (Cmd_Argc() != 2) + { + Con_Printf("usage:\n%s \n", Cmd_Argv(0)); + return; + } + filename = Cmd_Argv(1); + sp = FS_FindFile(filename, &index, true); + if (!sp) { + Con_Printf("%s isn't anywhere\n", filename); + return; + } + if (sp->pack) + Con_Printf("%s is in package %s\n", filename, sp->pack->shortname); + else + Con_Printf("%s is file %s%s\n", filename, sp->filename, filename); +} + + +const char *FS_WhichPack(const char *filename) +{ + int index; + searchpath_t *sp = FS_FindFile(filename, &index, true); + if(sp && sp->pack) + return sp->pack->shortname; + else + return 0; +} + +/* +==================== +FS_IsRegisteredQuakePack + +Look for a proof of purchase file file in the requested package + +If it is found, this file should NOT be downloaded. +==================== +*/ +qboolean FS_IsRegisteredQuakePack(const char *name) +{ + searchpath_t *search; + pack_t *pak; + + // search through the path, one element at a time + for (search = fs_searchpaths;search;search = search->next) + { + if (search->pack && !strcasecmp(FS_FileWithoutPath(search->filename), name)) + { + int (*strcmp_funct) (const char* str1, const char* str2); + int left, right, middle; + + pak = search->pack; + strcmp_funct = pak->ignorecase ? strcasecmp : strcmp; + + // Look for the file (binary search) + left = 0; + right = pak->numfiles - 1; + while (left <= right) + { + int diff; + + middle = (left + right) / 2; + diff = !strcmp_funct (pak->files[middle].name, "gfx/pop.lmp"); + + // Found it + if (!diff) + return true; + + // If we're too far in the list + if (diff > 0) + right = middle - 1; + else + left = middle + 1; + } + + // we found the requested pack but it is not registered quake + return false; + } + } + + return false; +} + +int FS_CRCFile(const char *filename, size_t *filesizepointer) +{ + int crc = -1; + unsigned char *filedata; + fs_offset_t filesize; + if (filesizepointer) + *filesizepointer = 0; + if (!filename || !*filename) + return crc; + filedata = FS_LoadFile(filename, tempmempool, true, &filesize); + if (filedata) + { + if (filesizepointer) + *filesizepointer = filesize; + crc = CRC_Block(filedata, filesize); + Mem_Free(filedata); + } + return crc; +} + +unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool) +{ + z_stream strm; + unsigned char *out = NULL; + unsigned char *tmp; + + memset(&strm, 0, sizeof(strm)); + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + if(level < 0) + level = Z_DEFAULT_COMPRESSION; + + if(qz_deflateInit2(&strm, level, Z_DEFLATED, -MAX_WBITS, Z_MEMLEVEL_DEFAULT, Z_BINARY) != Z_OK) + { + Con_Printf("FS_Deflate: deflate init error!\n"); + return NULL; + } + + strm.next_in = (unsigned char*)data; + strm.avail_in = size; + + tmp = (unsigned char *) Mem_Alloc(tempmempool, size); + if(!tmp) + { + Con_Printf("FS_Deflate: not enough memory in tempmempool!\n"); + qz_deflateEnd(&strm); + return NULL; + } + + strm.next_out = tmp; + strm.avail_out = size; + + if(qz_deflate(&strm, Z_FINISH) != Z_STREAM_END) + { + Con_Printf("FS_Deflate: deflate failed!\n"); + qz_deflateEnd(&strm); + Mem_Free(tmp); + return NULL; + } + + if(qz_deflateEnd(&strm) != Z_OK) + { + Con_Printf("FS_Deflate: deflateEnd failed\n"); + Mem_Free(tmp); + return NULL; + } + + if(strm.total_out >= size) + { + Con_Printf("FS_Deflate: deflate is useless on this data!\n"); + Mem_Free(tmp); + return NULL; + } + + out = (unsigned char *) Mem_Alloc(mempool, strm.total_out); + if(!out) + { + Con_Printf("FS_Deflate: not enough memory in target mempool!\n"); + Mem_Free(tmp); + return NULL; + } + + if(deflated_size) + *deflated_size = (size_t)strm.total_out; + + memcpy(out, tmp, strm.total_out); + Mem_Free(tmp); + + return out; +} + +static void AssertBufsize(sizebuf_t *buf, int length) +{ + if(buf->cursize + length > buf->maxsize) + { + int oldsize = buf->maxsize; + unsigned char *olddata; + olddata = buf->data; + buf->maxsize += length; + buf->data = (unsigned char *) Mem_Alloc(tempmempool, buf->maxsize); + if(olddata) + { + memcpy(buf->data, olddata, oldsize); + Mem_Free(olddata); + } + } +} + +unsigned char *FS_Inflate(const unsigned char *data, size_t size, size_t *inflated_size, mempool_t *mempool) +{ + int ret; + z_stream strm; + unsigned char *out = NULL; + unsigned char tmp[2048]; + unsigned int have; + sizebuf_t outbuf; + + memset(&outbuf, 0, sizeof(outbuf)); + outbuf.data = (unsigned char *) Mem_Alloc(tempmempool, sizeof(tmp)); + outbuf.maxsize = sizeof(tmp); + + memset(&strm, 0, sizeof(strm)); + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + if(qz_inflateInit2(&strm, -MAX_WBITS) != Z_OK) + { + Con_Printf("FS_Inflate: inflate init error!\n"); + Mem_Free(outbuf.data); + return NULL; + } + + strm.next_in = (unsigned char*)data; + strm.avail_in = size; + + do + { + strm.next_out = tmp; + strm.avail_out = sizeof(tmp); + ret = qz_inflate(&strm, Z_NO_FLUSH); + // it either returns Z_OK on progress, Z_STREAM_END on end + // or an error code + switch(ret) + { + case Z_STREAM_END: + case Z_OK: + break; + + case Z_STREAM_ERROR: + Con_Print("FS_Inflate: stream error!\n"); + break; + case Z_DATA_ERROR: + Con_Print("FS_Inflate: data error!\n"); + break; + case Z_MEM_ERROR: + Con_Print("FS_Inflate: mem error!\n"); + break; + case Z_BUF_ERROR: + Con_Print("FS_Inflate: buf error!\n"); + break; + default: + Con_Print("FS_Inflate: unknown error!\n"); + break; + + } + if(ret != Z_OK && ret != Z_STREAM_END) + { + Con_Printf("Error after inflating %u bytes\n", (unsigned)strm.total_in); + Mem_Free(outbuf.data); + qz_inflateEnd(&strm); + return NULL; + } + have = sizeof(tmp) - strm.avail_out; + AssertBufsize(&outbuf, max(have, sizeof(tmp))); + SZ_Write(&outbuf, tmp, have); + } while(ret != Z_STREAM_END); + + qz_inflateEnd(&strm); + + out = (unsigned char *) Mem_Alloc(mempool, outbuf.cursize); + if(!out) + { + Con_Printf("FS_Inflate: not enough memory in target mempool!\n"); + Mem_Free(outbuf.data); + return NULL; + } + + memcpy(out, outbuf.data, outbuf.cursize); + Mem_Free(outbuf.data); + + if(inflated_size) + *inflated_size = (size_t)outbuf.cursize; + + return out; +}