]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - fs.c
avoid bugs introduced by the attempt to skip image processing - a closer
[xonotic/darkplaces.git] / fs.c
diff --git a/fs.c b/fs.c
index 6058893ec1d50023d841f33b70887a54c6dec235..b5ffaf2acb31762f2ad6e4e04bcd10e5df817c15 100644 (file)
--- a/fs.c
+++ b/fs.c
                Boston, MA  02111-1307, USA
 */
 
-#include "quakedef.h"
+#ifdef __APPLE__
+// include SDL for IPHONEOS code
+# include <TargetConditionals.h>
+# if TARGET_OS_IPHONE
+#  include <SDL.h>
+# endif
+#endif
 
 #include <limits.h>
 #include <fcntl.h>
@@ -37,6 +43,8 @@
 # include <unistd.h>
 #endif
 
+#include "quakedef.h"
+
 #include "fs.h"
 #include "wad.h"
 
@@ -52,6 +60,7 @@
 
 // largefile support for Win32
 #ifdef WIN32
+#undef lseek
 # define lseek _lseeki64
 #endif
 
@@ -188,6 +197,8 @@ typedef struct
 #define QFILE_FLAG_DEFLATED (1 << 1)
 /// file is actually already loaded data
 #define QFILE_FLAG_DATA (1 << 2)
+/// real file will be removed on close
+#define QFILE_FLAG_REMOVE (1 << 3)
 
 #define FILE_BUFF_SIZE 2048
 typedef struct
@@ -215,6 +226,8 @@ struct qfile_s
        ztoolkit_t*             ztk;    ///< For zipped files.
 
        const unsigned char *data;      ///< For data files.
+
+       const char *filename; ///< Kept around for QFILE_FLAG_REMOVE, unused otherwise
 };
 
 
@@ -399,7 +412,46 @@ static dllfunction_t shfolderfuncs[] =
        {"SHGetFolderPathA", (void **) &qSHGetFolderPath},
        {NULL, NULL}
 };
+static const char* shfolderdllnames [] =
+{
+       "shfolder.dll",  // IE 4, or Win NT and higher
+       NULL
+};
 static dllhandle_t shfolder_dll = NULL;
+
+const GUID qFOLDERID_SavedGames = {0x4C5C32FF, 0xBB9D, 0x43b0, {0xB5, 0xB4, 0x2D, 0x72, 0xE5, 0x4E, 0xAA, 0xA4}}; 
+#define qREFKNOWNFOLDERID const GUID *
+#define qKF_FLAG_CREATE 0x8000
+#define qKF_FLAG_NO_ALIAS 0x1000
+static HRESULT (WINAPI *qSHGetKnownFolderPath) (qREFKNOWNFOLDERID rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
+static dllfunction_t shell32funcs[] =
+{
+       {"SHGetKnownFolderPath", (void **) &qSHGetKnownFolderPath},
+       {NULL, NULL}
+};
+static const char* shell32dllnames [] =
+{
+       "shell32.dll",  // Vista and higher
+       NULL
+};
+static dllhandle_t shell32_dll = NULL;
+
+static HRESULT (WINAPI *qCoInitializeEx)(LPVOID pvReserved, DWORD dwCoInit);
+static void (WINAPI *qCoUninitialize)(void);
+static void (WINAPI *qCoTaskMemFree)(LPVOID pv);
+static dllfunction_t ole32funcs[] =
+{
+       {"CoInitializeEx", (void **) &qCoInitializeEx},
+       {"CoUninitialize", (void **) &qCoUninitialize},
+       {"CoTaskMemFree", (void **) &qCoTaskMemFree},
+       {NULL, NULL}
+};
+static const char* ole32dllnames [] =
+{
+       "ole32.dll", // 2000 and higher
+       NULL
+};
+static dllhandle_t ole32_dll = NULL;
 #endif
 
 /*
@@ -624,9 +676,9 @@ int PK3_BuildFileList (pack_t *pack, const pk3_endOfCentralDir_t *eocd)
                                        flags = PACKFILE_FLAG_DEFLATED;
                                else
                                        flags = 0;
-                               offset = BuffLittleLong (&ptr[42]) + eocd->prepended_garbage;
-                               packsize = BuffLittleLong (&ptr[20]);
-                               realsize = BuffLittleLong (&ptr[24]);
+                               offset = (unsigned int)(BuffLittleLong (&ptr[42]) + eocd->prepended_garbage);
+                               packsize = (unsigned int)BuffLittleLong (&ptr[20]);
+                               realsize = (unsigned int)BuffLittleLong (&ptr[24]);
 
                                switch(ptr[5]) // C_VERSION_MADE_BY_1
                                {
@@ -665,7 +717,7 @@ FS_LoadPackPK3
 Create a package entry associated with a PK3 file
 ====================
 */
-pack_t *FS_LoadPackPK3FromFD (const char *packfile, int packhandle)
+pack_t *FS_LoadPackPK3FromFD (const char *packfile, int packhandle, qboolean silent)
 {
        pk3_endOfCentralDir_t eocd;
        pack_t *pack;
@@ -673,7 +725,8 @@ pack_t *FS_LoadPackPK3FromFD (const char *packfile, int packhandle)
 
        if (! PK3_GetEndOfCentralDir (packfile, packhandle, &eocd))
        {
-               Con_Printf ("%s is not a PK3 file\n", packfile);
+               if(!silent)
+                       Con_Printf ("%s is not a PK3 file\n", packfile);
                close(packhandle);
                return NULL;
        }
@@ -727,7 +780,7 @@ pack_t *FS_LoadPackPK3 (const char *packfile)
 #endif
        if (packhandle < 0)
                return NULL;
-       return FS_LoadPackPK3FromFD(packfile, packhandle);
+       return FS_LoadPackPK3FromFD(packfile, packhandle, false);
 }
 
 
@@ -952,8 +1005,8 @@ pack_t *FS_LoadPackPAK (const char *packfile)
        // parse the directory
        for (i = 0;i < numpackfiles;i++)
        {
-               fs_offset_t offset = LittleLong (info[i].filepos);
-               fs_offset_t size = LittleLong (info[i].filelen);
+               fs_offset_t offset = (unsigned int)LittleLong (info[i].filepos);
+               fs_offset_t size = (unsigned int)LittleLong (info[i].filelen);
 
                FS_AddFileToPack (info[i].name, pack, offset, size, size, PACKFILE_FLAG_TRUEOFFS);
        }
@@ -1279,7 +1332,7 @@ static void FS_AddSelfPack(void)
        if(fs_selfpack)
        {
                searchpath_t *search;
-               search = Mem_Alloc(fs_mempool, sizeof(searchpath_t));
+               search = (searchpath_t *)Mem_Alloc(fs_mempool, sizeof(searchpath_t));
                search->next = fs_searchpaths;
                search->pack = fs_selfpack;
                fs_searchpaths = search;
@@ -1296,10 +1349,17 @@ void FS_Rescan (void)
 {
        int i;
        qboolean fs_modified = false;
+       qboolean reset = false;
        char gamedirbuf[MAX_INPUTLINE];
 
+       if (fs_searchpaths)
+               reset = true;
        FS_ClearSearchPath();
 
+       // automatically activate gamemode for the gamedirs specified
+       if (reset)
+               COM_ChangeGameTypeForGameDirs();
+
        // add the game-specific paths
        // gamedirname1 (typically id1)
        FS_AddGameHierarchy (gamedirname1);
@@ -1350,18 +1410,31 @@ void FS_Rescan (void)
                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_FileExists("gfx/pop.lmp"))
+               Cvar_Set ("registered", "1");
+       switch(gamemode)
        {
-               if (fs_modified)
-                       Con_Print("Playing shareware version, with modification.\nwarning: most mods require full quake data.\n");
+       case GAME_NORMAL:
+       case GAME_HIPNOTIC:
+       case GAME_ROGUE:
+               if (!registered.integer)
+               {
+                       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
-                       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");
+               break;
+       case GAME_STEELSTORM:
+               if (registered.integer)
+                       Con_Print("Playing registered version.\n");
+               else
+                       Con_Print("Playing shareware version.\n");
+               break;
+       default:
+               break;
        }
 
        // unload all wads so that future queries will return the new data
@@ -1380,6 +1453,8 @@ FS_ChangeGameDirs
 */
 extern void Host_SaveConfig (void);
 extern void Host_LoadConfig_f (void);
+extern qboolean vid_opened;
+extern void VID_Stop(void);
 qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean complain, qboolean failmissing)
 {
        int i;
@@ -1428,14 +1503,21 @@ qboolean FS_ChangeGameDirs(int numgamedirs, char gamedirs[][MAX_QPATH], qboolean
        // reinitialize filesystem to detect the new paks
        FS_Rescan();
 
-       // exec the new config
-       Host_LoadConfig_f();
+       if (cls.demoplayback)
+       {
+               CL_Disconnect_f();
+               cls.demonum = 0;
+       }
 
        // 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();
+       // close down the video subsystem, it will start up again when the config finishes...
+       VID_Stop();
+       vid_opened = false;
+
+       // restart the video subsystem after the config is executed
+       Cbuf_InsertText("\nloadconfig\nvid_restart\n\n");
 
        return true;
 }
@@ -1483,7 +1565,6 @@ void FS_GameDir_f (void)
        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];
@@ -1599,6 +1680,13 @@ static void FS_ListGameDirs(void)
        }
 }
 
+/*
+#ifdef WIN32
+#pragma comment(lib, "shell32.lib")
+#include <ShlObj.h>
+#endif
+*/
+
 /*
 ================
 FS_Init_SelfPack
@@ -1610,7 +1698,7 @@ void FS_Init_SelfPack (void)
        fs_mempool = Mem_AllocPool("file management", 0, NULL);
        if(com_selffd >= 0)
        {
-               fs_selfpack = FS_LoadPackPK3FromFD(com_argv[0], com_selffd);
+               fs_selfpack = FS_LoadPackPK3FromFD(com_argv[0], com_selffd, true);
                if(fs_selfpack)
                {
                        char *buf, *q;
@@ -1630,7 +1718,7 @@ void FS_Init_SelfPack (void)
                                }
                                else
                                {
-                                       memcpy(&new_argv[0], &com_argv[0], sizeof(*com_argv) * com_argc);
+                                       memcpy((char *)(&new_argv[0]), &com_argv[0], sizeof(*com_argv) * com_argc);
                                }
                                p = buf;
                                while(COM_ParseToken_Console(&p))
@@ -1651,120 +1739,167 @@ void FS_Init_SelfPack (void)
        }
 }
 
-/*
-================
-FS_Init
-================
-*/
-void FS_Init (void)
+int FS_ChooseUserDir(userdirmode_t userdirmode, char *userdir, size_t userdirsize)
 {
-       const char *p;
-       int i;
-#ifdef WIN32
-       TCHAR mydocsdir[MAX_PATH + 1];
+#if defined(__IPHONEOS__)
+       if (userdirmode == USERDIRMODE_HOME)
+       {
+               // fs_basedir is "" by default, to utilize this you can simply add your gamedir to the Resources in xcode
+               // fs_userdir stores configurations to the Documents folder of the app
+               strlcpy(userdir, maxlength, "../Documents/");
+               return 1;
+       }
+       return -1;
+
+#elif defined(WIN32)
+       char *homedir;
 #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
-
-       // 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
+       TCHAR mydocsdir[MAX_PATH + 1];
+       wchar_t *savedgamesdirw;
+       char savedgamesdir[MAX_OSPATH];
+       int fd;
+       
+       userdir[0] = 0;
+       switch(userdirmode)
        {
-#ifdef WIN32
-               if(qSHGetFolderPath && (qSHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, 0, mydocsdir) == S_OK))
+       default:
+               return -1;
+       case USERDIRMODE_NOHOME:
+               strlcpy(userdir, fs_basedir, userdirsize);
+               break;
+       case USERDIRMODE_MYGAMES:
+               if (!shfolder_dll)
+                       Sys_LoadLibrary(shfolderdllnames, &shfolder_dll, shfolderfuncs);
+               mydocsdir[0] = 0;
+               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);
+                       dpsnprintf(userdir, userdirsize, "%s/My Games/%s/", mydocsdir, gameuserdirname);
+                       break;
                }
-               else
-               {
-                       // use the environment
 #if _MSC_VER >= 1400
-                       _dupenv_s (&homedir, &homedirlen, "USERPROFILE");
+               _dupenv_s(&homedir, &homedirlen, "USERPROFILE");
+               if(homedir)
+               {
+                       dpsnprintf(userdir, userdirsize, "%s/.%s/", homedir, gameuserdirname);
+                       free(homedir);
+                       break;
+               }
 #else
-                       homedir = getenv("USERPROFILE");
+               homedir = getenv("USERPROFILE");
+               if(homedir)
+               {
+                       dpsnprintf(userdir, userdirsize, "%s/.%s/", homedir, gameuserdirname);
+                       break;
+               }
 #endif
-
-                       if(homedir)
+               return -1;
+       case USERDIRMODE_SAVEDGAMES:
+               if (!shell32_dll)
+                       Sys_LoadLibrary(shell32dllnames, &shell32_dll, shell32funcs);
+               if (!ole32_dll)
+                       Sys_LoadLibrary(ole32dllnames, &ole32_dll, ole32funcs);
+               if (qSHGetKnownFolderPath && qCoInitializeEx && qCoTaskMemFree && qCoUninitialize)
+               {
+                       savedgamesdir[0] = 0;
+                       qCoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
+/*
+#ifdef __cplusplus
+                       if (SHGetKnownFolderPath(FOLDERID_SavedGames, KF_FLAG_CREATE | KF_FLAG_NO_ALIAS, NULL, &savedgamesdirw) == S_OK)
+#else
+                       if (SHGetKnownFolderPath(&FOLDERID_SavedGames, KF_FLAG_CREATE | KF_FLAG_NO_ALIAS, NULL, &savedgamesdirw) == S_OK)
+#endif
+*/
+                       if (qSHGetKnownFolderPath(&qFOLDERID_SavedGames, qKF_FLAG_CREATE | qKF_FLAG_NO_ALIAS, NULL, &savedgamesdirw) == S_OK)
                        {
-                               dpsnprintf(fs_userdir, sizeof(fs_userdir), "%s/My Documents/My Games/%s/", homedir, gameuserdirname);
+                               memset(savedgamesdir, 0, sizeof(savedgamesdir));
 #if _MSC_VER >= 1400
-                               free(homedir);
+                               wcstombs_s(NULL, savedgamesdir, sizeof(savedgamesdir), savedgamesdirw, sizeof(savedgamesdir)-1);
+#else
+                               wcstombs(savedgamesdir, savedgamesdirw, sizeof(savedgamesdir)-1);
 #endif
-                               Con_DPrintf("Obtained personal directory %s from environment\n", fs_userdir);
+                               qCoTaskMemFree(savedgamesdirw);
+                       }
+                       qCoUninitialize();
+                       if (savedgamesdir[0])
+                       {
+                               dpsnprintf(userdir, userdirsize, "%s/%s/", savedgamesdir, gameuserdirname);
+                               break;
                        }
                }
-
-               if(!*fs_userdir)
-                       Con_DPrintf("Could not obtain home directory; not supporting -mygames\n");
+               return -1;
+       }
 #else
-               homedir = getenv ("HOME");
+       int fd;
+       char *homedir;
+       userdir[0] = 0;
+       switch(userdirmode)
+       {
+       default:
+               return -1;
+       case USERDIRMODE_NOHOME:
+               strlcpy(userdir, fs_basedir, userdirsize);
+               break;
+       case USERDIRMODE_HOME:
+               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!
+                       dpsnprintf(userdir, userdirsize, "%s/.%s/", homedir, gameuserdirname);
+                       break;
+               }
+               return -1;
+       case USERDIRMODE_SAVEDGAMES:
+               homedir = getenv("HOME");
+               if(homedir)
+               {
+#ifdef MACOSX
+                       dpsnprintf(userdir, userdirsize, "%s/Library/Application Support/%s/", homedir, gameuserdirname);
 #else
-                       int fd = open (va("%s%s/config.cfg", fs_basedir, gamedirname1), O_WRONLY | O_CREAT, 0666); // note: no O_TRUNC here!
+                       // the XDG say some files would need to go in:
+                       // XDG_CONFIG_HOME (or ~/.config/%s/)
+                       // XDG_DATA_HOME (or ~/.local/share/%s/)
+                       // XDG_CACHE_HOME (or ~/.cache/%s/)
+                       // and also search the following global locations if defined:
+                       // XDG_CONFIG_DIRS (normally /etc/xdg/%s/)
+                       // XDG_DATA_DIRS (normally /usr/share/%s/)
+                       // this would be too complicated...
+                       return -1;
 #endif
-                       if(fd >= 0)
-                       {
-                               close(fd);
-                               *fs_userdir = 0; // we have write access to the game dir, so let's use it
-                       }
+                       break;
                }
-#endif
+               return -1;
        }
+#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));
+       // see if we can write to this path (note: won't create path)
+#if _MSC_VER >= 1400
+       _sopen_s(&fd, va("%s%s/config.cfg", userdir, gamedirname1), O_WRONLY | O_CREAT, _SH_DENYNO, _S_IREAD | _S_IWRITE); // note: no O_TRUNC here!
 #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/"))
+       fd = open (va("%s%s/config.cfg", userdir, gamedirname1), O_WRONLY | O_CREAT, 0666); // note: no O_TRUNC here!
+#endif
+       if(fd >= 0)
        {
-               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;
+               close(fd);
+               return 1; // good choice - the path exists and is writable
        }
-#endif
-#endif
+       else
+               return 0; // probably good - failed to write but maybe we need to create path
+}
+
+/*
+================
+FS_Init
+================
+*/
+void FS_Init (void)
+{
+       const char *p;
+       int i;
+
+       *fs_basedir = 0;
+       *fs_userdir = 0;
+       *fs_gamedir = 0;
 
        // -basedir <path>
        // Overrides the system supplied base directory (under GAMENAME)
@@ -1777,11 +1912,88 @@ void FS_Init (void)
                if (i > 0 && (fs_basedir[i-1] == '\\' || fs_basedir[i-1] == '/'))
                        fs_basedir[i-1] = 0;
        }
+       else
+       {
+// If the base directory is explicitly defined by the compilation process
+#ifdef DP_FS_BASEDIR
+               strlcpy(fs_basedir, DP_FS_BASEDIR, sizeof(fs_basedir));
+#elif defined(MACOSX)
+               // FIXME: is there a better way to find the directory outside the .app?
+               // FIXME: check if game data is inside .app bundle
+               if (strstr(com_argv[0], ".app/"))
+               {
+                       char *split;
+                       strlcpy(fs_basedir, com_argv[0], sizeof(fs_basedir));
+                       split = strstr(fs_basedir, ".app/");
+                       if (split)
+                       {
+                               while (split > fs_basedir && *split != '/')
+                                       split--;
+                               *split = 0;
+                       }
+               }
+#endif
+       }
 
+       // make sure the appending of a path separator won't create an unterminated string
+       memset(fs_basedir + sizeof(fs_basedir) - 2, 0, 2);
        // 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));
 
+       // 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; // user wants roaming installation, no userdir
+       else
+       {
+               int dirmode;
+               int highestuserdirmode = USERDIRMODE_COUNT - 1;
+               int preferreduserdirmode = USERDIRMODE_COUNT - 1;
+               int userdirstatus[USERDIRMODE_COUNT];
+#ifdef WIN32
+               // historical behavior...
+               if (!strcmp(gamedirname1, "id1"))
+                       preferreduserdirmode = USERDIRMODE_NOHOME;
+#endif
+               // check what limitations the user wants to impose
+               if (COM_CheckParm("-home")) preferreduserdirmode = USERDIRMODE_HOME;
+               if (COM_CheckParm("-mygames")) preferreduserdirmode = USERDIRMODE_MYGAMES;
+               if (COM_CheckParm("-savedgames")) preferreduserdirmode = USERDIRMODE_SAVEDGAMES;
+               // gather the status of the possible userdirs
+               for (dirmode = 0;dirmode < USERDIRMODE_COUNT;dirmode++)
+               {
+                       userdirstatus[dirmode] = FS_ChooseUserDir((userdirmode_t)dirmode, fs_userdir, sizeof(fs_userdir));
+                       if (userdirstatus[dirmode] == 1)
+                               Con_DPrintf("userdir %i = %s (writable)\n", dirmode, fs_userdir);
+                       else if (userdirstatus[dirmode] == 0)
+                               Con_DPrintf("userdir %i = %s (not writable or does not exist)\n", dirmode, fs_userdir);
+                       else
+                               Con_DPrintf("userdir %i (not applicable)\n", dirmode);
+               }
+               // some games may prefer writing to basedir, but if write fails we
+               // have to search for a real userdir...
+               if (preferreduserdirmode == 0 && userdirstatus[0] < 1)
+                       preferreduserdirmode = highestuserdirmode;
+               // check for an existing userdir and continue using it if possible...
+               for (dirmode = USERDIRMODE_COUNT - 1;dirmode > 0;dirmode--)
+                       if (userdirstatus[dirmode] == 1)
+                               break;
+               // if no existing userdir found, make a new one...
+               if (dirmode == 0 && preferreduserdirmode > 0)
+                       for (dirmode = preferreduserdirmode;dirmode > 0;dirmode--)
+                               if (userdirstatus[dirmode] >= 0)
+                                       break;
+               // and finally, we picked one...
+               FS_ChooseUserDir((userdirmode_t)dirmode, fs_userdir, sizeof(fs_userdir));
+               Con_DPrintf("userdir %i is the winner\n", dirmode);
+       }
+
+       // if userdir equal to basedir, clear it to avoid confusion later
+       if (!strcmp(fs_basedir, fs_userdir))
+               fs_userdir[0] = 0;
+
        FS_ListGameDirs();
 
        p = FS_CheckGameDir(gamedirname1);
@@ -1849,6 +2061,8 @@ void FS_Shutdown (void)
 
 #ifdef WIN32
        Sys_UnloadLibrary (&shfolder_dll);
+       Sys_UnloadLibrary (&shell32_dll);
+       Sys_UnloadLibrary (&ole32_dll);
 #endif
 }
 
@@ -1911,7 +2125,7 @@ FS_SysOpen
 Internal function used to create a qfile_t and open the relevant non-packed file on disk
 ====================
 */
-static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean nonblocking)
+qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean nonblocking)
 {
        qfile_t* file;
 
@@ -1924,6 +2138,8 @@ static qfile_t* FS_SysOpen (const char* filepath, const char* mode, qboolean non
                return NULL;
        }
 
+       file->filename = Mem_strdup(fs_mempool, filepath);
+
        file->real_length = lseek (file->handle, 0, SEEK_END);
 
        // For files opened in append mode, we start at the end of the file
@@ -1971,8 +2187,8 @@ qfile_t *FS_OpenPackedFile (pack_t* pack, int pack_ind)
        // 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);
+               Con_Printf ("FS_OpenPackedFile: can't lseek to %s in %s (offset: %08x%08x)\n",
+                                       pfile->name, pack->filename, (unsigned int)(pfile->offset >> 32), (unsigned int)(pfile->offset));
                return NULL;
        }
 
@@ -2389,6 +2605,14 @@ int FS_Close (qfile_t* file)
        if (close (file->handle))
                return EOF;
 
+       if (file->filename)
+       {
+               if (file->flags & QFILE_FLAG_REMOVE)
+                       remove(file->filename);
+
+               Mem_Free((void *) file->filename);
+       }
+
        if (file->ztk)
        {
                qz_inflateEnd (&file->ztk->zstream);
@@ -2399,6 +2623,10 @@ int FS_Close (qfile_t* file)
        return 0;
 }
 
+void FS_RemoveOnClose(qfile_t* file)
+{
+       file->flags |= QFILE_FLAG_REMOVE;
+}
 
 /*
 ====================
@@ -2902,9 +3130,11 @@ FS_WriteFile
 The filename will be prefixed by the current game directory
 ============
 */
-qboolean FS_WriteFile (const char *filename, void *data, fs_offset_t len)
+qboolean FS_WriteFileInBlocks (const char *filename, const void *const *data, const fs_offset_t *len, size_t count)
 {
        qfile_t *file;
+       size_t i;
+       fs_offset_t lentotal;
 
        file = FS_OpenRealFile(filename, "wb", false);
        if (!file)
@@ -2913,12 +3143,21 @@ qboolean FS_WriteFile (const char *filename, void *data, fs_offset_t len)
                return false;
        }
 
-       Con_DPrintf("FS_WriteFile: %s (%u bytes)\n", filename, (unsigned int)len);
-       FS_Write (file, data, len);
+       lentotal = 0;
+       for(i = 0; i < count; ++i)
+               lentotal += len[i];
+       Con_DPrintf("FS_WriteFile: %s (%u bytes)\n", filename, (unsigned int)lentotal);
+       for(i = 0; i < count; ++i)
+               FS_Write (file, data[i], len[i]);
        FS_Close (file);
        return true;
 }
 
+qboolean FS_WriteFile (const char *filename, const void *data, fs_offset_t len)
+{
+       return FS_WriteFileInBlocks(filename, &data, &len, 1);
+}
+
 
 /*
 =============================================================================