7768
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/*
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* Windows support routines for PhysicsFS.
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*
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* Please see the file LICENSE.txt in the source's root directory.
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*
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* This file written by Ryan C. Gordon, and made sane by Gregory S. Read.
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*/
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_platforms.h"
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#ifdef PHYSFS_PLATFORM_WINDOWS
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/* Forcibly disable UNICODE macro, since we manage this ourselves. */
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#ifdef UNICODE
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#undef UNICODE
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#endif
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>
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#include <userenv.h>
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#include <shlobj.h>
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#include <dbt.h>
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#include <errno.h>
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#include <ctype.h>
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#include <time.h>
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#include "physfs_internal.h"
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#define LOWORDER_UINT64(pos) ((PHYSFS_uint32) (pos & 0xFFFFFFFF))
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#define HIGHORDER_UINT64(pos) ((PHYSFS_uint32) ((pos >> 32) & 0xFFFFFFFF))
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/*
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* Users without the platform SDK don't have this defined. The original docs
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* for SetFilePointer() just said to compare with 0xFFFFFFFF, so this should
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* work as desired.
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*/
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#define PHYSFS_INVALID_SET_FILE_POINTER 0xFFFFFFFF
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/* just in case... */
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#define PHYSFS_INVALID_FILE_ATTRIBUTES 0xFFFFFFFF
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/* Not defined before the Vista SDK. */
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#define PHYSFS_IO_REPARSE_TAG_SYMLINK 0xA000000C
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#define UTF8_TO_UNICODE_STACK_MACRO(w_assignto, str) { \
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if (str == NULL) \
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w_assignto = NULL; \
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else { \
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const PHYSFS_uint64 len = (PHYSFS_uint64) ((strlen(str) + 1) * 2); \
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w_assignto = (WCHAR *) __PHYSFS_smallAlloc(len); \
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if (w_assignto != NULL) \
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PHYSFS_utf8ToUtf16(str, (PHYSFS_uint16 *) w_assignto, len); \
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} \
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} \
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/* Note this counts WCHARs, not codepoints! */
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static PHYSFS_uint64 wStrLen(const WCHAR *wstr)
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{
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PHYSFS_uint64 len = 0;
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while (*(wstr++))
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len++;
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return len;
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} /* wStrLen */
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static char *unicodeToUtf8Heap(const WCHAR *w_str)
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{
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char *retval = NULL;
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if (w_str != NULL)
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{
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void *ptr = NULL;
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const PHYSFS_uint64 len = (wStrLen(w_str) * 4) + 1;
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retval = allocator.Malloc(len);
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BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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PHYSFS_utf8FromUtf16((const PHYSFS_uint16 *) w_str, retval, len);
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ptr = allocator.Realloc(retval, strlen(retval) + 1); /* shrink. */
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if (ptr != NULL)
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retval = (char *) ptr;
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} /* if */
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return retval;
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} /* unicodeToUtf8Heap */
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/* !!! FIXME: do we really need readonly? If not, do we need this struct? */
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typedef struct
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{
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HANDLE handle;
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int readonly;
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} WinApiFile;
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static HANDLE detectCDThreadHandle = NULL;
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static HWND detectCDHwnd = 0;
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static volatile int initialDiscDetectionComplete = 0;
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static volatile DWORD drivesWithMediaBitmap = 0;
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static PHYSFS_ErrorCode errcodeFromWinApiError(const DWORD err)
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{
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/*
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* win32 error codes are sort of a tricky thing; Microsoft intentionally
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* doesn't list which ones a given API might trigger, there are several
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* with overlapping and unclear meanings...and there's 16 thousand of
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* them in Windows 7. It looks like the ones we care about are in the
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* first 500, but I can't say this list is perfect; we might miss
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* important values or misinterpret others.
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*
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* Don't treat this list as anything other than a work in progress.
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*/
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switch (err)
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{
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case ERROR_SUCCESS: return PHYSFS_ERR_OK;
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case ERROR_ACCESS_DENIED: return PHYSFS_ERR_PERMISSION;
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case ERROR_NETWORK_ACCESS_DENIED: return PHYSFS_ERR_PERMISSION;
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case ERROR_NOT_READY: return PHYSFS_ERR_IO;
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case ERROR_CRC: return PHYSFS_ERR_IO;
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case ERROR_SEEK: return PHYSFS_ERR_IO;
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case ERROR_SECTOR_NOT_FOUND: return PHYSFS_ERR_IO;
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case ERROR_NOT_DOS_DISK: return PHYSFS_ERR_IO;
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case ERROR_WRITE_FAULT: return PHYSFS_ERR_IO;
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case ERROR_READ_FAULT: return PHYSFS_ERR_IO;
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case ERROR_DEV_NOT_EXIST: return PHYSFS_ERR_IO;
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/* !!! FIXME: ?? case ELOOP: return PHYSFS_ERR_SYMLINK_LOOP; */
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case ERROR_BUFFER_OVERFLOW: return PHYSFS_ERR_BAD_FILENAME;
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case ERROR_INVALID_NAME: return PHYSFS_ERR_BAD_FILENAME;
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case ERROR_BAD_PATHNAME: return PHYSFS_ERR_BAD_FILENAME;
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case ERROR_DIRECTORY: return PHYSFS_ERR_BAD_FILENAME;
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case ERROR_FILE_NOT_FOUND: return PHYSFS_ERR_NO_SUCH_PATH;
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case ERROR_PATH_NOT_FOUND: return PHYSFS_ERR_NO_SUCH_PATH;
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case ERROR_DELETE_PENDING: return PHYSFS_ERR_NO_SUCH_PATH;
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case ERROR_INVALID_DRIVE: return PHYSFS_ERR_NO_SUCH_PATH;
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case ERROR_HANDLE_DISK_FULL: return PHYSFS_ERR_NO_SPACE;
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case ERROR_DISK_FULL: return PHYSFS_ERR_NO_SPACE;
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/* !!! FIXME: ?? case ENOTDIR: return PHYSFS_ERR_NO_SUCH_PATH; */
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/* !!! FIXME: ?? case EISDIR: return PHYSFS_ERR_NOT_A_FILE; */
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case ERROR_WRITE_PROTECT: return PHYSFS_ERR_READ_ONLY;
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case ERROR_LOCK_VIOLATION: return PHYSFS_ERR_BUSY;
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case ERROR_SHARING_VIOLATION: return PHYSFS_ERR_BUSY;
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case ERROR_CURRENT_DIRECTORY: return PHYSFS_ERR_BUSY;
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case ERROR_DRIVE_LOCKED: return PHYSFS_ERR_BUSY;
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case ERROR_PATH_BUSY: return PHYSFS_ERR_BUSY;
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case ERROR_BUSY: return PHYSFS_ERR_BUSY;
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case ERROR_NOT_ENOUGH_MEMORY: return PHYSFS_ERR_OUT_OF_MEMORY;
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case ERROR_OUTOFMEMORY: return PHYSFS_ERR_OUT_OF_MEMORY;
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case ERROR_DIR_NOT_EMPTY: return PHYSFS_ERR_DIR_NOT_EMPTY;
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default: return PHYSFS_ERR_OS_ERROR;
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} /* switch */
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} /* errcodeFromWinApiError */
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static inline PHYSFS_ErrorCode errcodeFromWinApi(void)
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{
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return errcodeFromWinApiError(GetLastError());
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} /* errcodeFromWinApi */
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typedef BOOL (WINAPI *fnSTEM)(DWORD, LPDWORD b);
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static DWORD pollDiscDrives(void)
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{
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/* Try to use SetThreadErrorMode(), which showed up in Windows 7. */
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HANDLE lib = LoadLibraryA("kernel32.dll");
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fnSTEM stem = NULL;
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char drive[4] = { 'x', ':', '\\', '\0' };
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DWORD oldErrorMode = 0;
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DWORD drives = 0;
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DWORD i;
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if (lib)
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stem = (fnSTEM) GetProcAddress(lib, "SetThreadErrorMode");
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if (stem)
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stem(SEM_FAILCRITICALERRORS, &oldErrorMode);
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else
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oldErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);
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/* Do detection. This may block if a disc is spinning up. */
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for (i = 'A'; i <= 'Z'; i++)
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{
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DWORD tmp = 0;
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drive[0] = (char) i;
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if (GetDriveTypeA(drive) != DRIVE_CDROM)
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continue;
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/* If this function succeeds, there's media in the drive */
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if (GetVolumeInformationA(drive, NULL, 0, NULL, NULL, &tmp, NULL, 0))
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drives |= (1 << (i - 'A'));
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} /* for */
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if (stem)
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stem(oldErrorMode, NULL);
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else
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SetErrorMode(oldErrorMode);
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if (lib)
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FreeLibrary(lib);
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return drives;
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} /* pollDiscDrives */
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static LRESULT CALLBACK detectCDWndProc(HWND hwnd, UINT msg,
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WPARAM wp, LPARAM lparam)
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{
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PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR) lparam;
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PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME) lparam;
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const int removed = (wp == DBT_DEVICEREMOVECOMPLETE);
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if (msg == WM_DESTROY)
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return 0;
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else if ((msg != WM_DEVICECHANGE) ||
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((wp != DBT_DEVICEARRIVAL) && (wp != DBT_DEVICEREMOVECOMPLETE)) ||
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(lpdb->dbch_devicetype != DBT_DEVTYP_VOLUME) ||
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((lpdbv->dbcv_flags & DBTF_MEDIA) == 0))
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{
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return DefWindowProcW(hwnd, msg, wp, lparam);
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} /* else if */
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if (removed)
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drivesWithMediaBitmap &= ~lpdbv->dbcv_unitmask;
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else
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drivesWithMediaBitmap |= lpdbv->dbcv_unitmask;
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return TRUE;
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} /* detectCDWndProc */
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static DWORD WINAPI detectCDThread(LPVOID lpParameter)
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{
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const char *classname = "PhysicsFSDetectCDCatcher";
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const char *winname = "PhysicsFSDetectCDMsgWindow";
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HINSTANCE hInstance = GetModuleHandleW(NULL);
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ATOM class_atom = 0;
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WNDCLASSEXA wce;
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MSG msg;
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memset(&wce, '\0', sizeof (wce));
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wce.cbSize = sizeof (wce);
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wce.lpfnWndProc = detectCDWndProc;
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wce.lpszClassName = classname;
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wce.hInstance = hInstance;
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class_atom = RegisterClassExA(&wce);
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if (class_atom == 0)
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{
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initialDiscDetectionComplete = 1; /* let main thread go on. */
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return 0;
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} /* if */
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detectCDHwnd = CreateWindowExA(0, classname, winname, WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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CW_USEDEFAULT, HWND_DESKTOP, NULL, hInstance, NULL);
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if (detectCDHwnd == NULL)
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{
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initialDiscDetectionComplete = 1; /* let main thread go on. */
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UnregisterClassA(classname, hInstance);
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return 0;
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} /* if */
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/* We'll get events when discs come and go from now on. */
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/* Do initial detection, possibly blocking awhile... */
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drivesWithMediaBitmap = pollDiscDrives();
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initialDiscDetectionComplete = 1; /* let main thread go on. */
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do
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{
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const BOOL rc = GetMessageW(&msg, detectCDHwnd, 0, 0);
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if ((rc == 0) || (rc == -1))
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break; /* don't care if WM_QUIT or error break this loop. */
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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} while (1);
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/* we've been asked to quit. */
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DestroyWindow(detectCDHwnd);
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do
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{
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const BOOL rc = GetMessage(&msg, detectCDHwnd, 0, 0);
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if ((rc == 0) || (rc == -1))
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break;
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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} while (1);
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UnregisterClassA(classname, hInstance);
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return 0;
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} /* detectCDThread */
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
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{
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char drive_str[4] = { 'x', ':', '\\', '\0' };
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DWORD drives = 0;
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DWORD i;
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/*
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* If you poll a drive while a user is inserting a disc, the OS will
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* block this thread until the drive has spun up. So we swallow the risk
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* once for initial detection, and spin a thread that will get device
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* events thereafter, for apps that use this interface to poll for
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* disc insertion.
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*/
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if (!detectCDThreadHandle)
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{
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initialDiscDetectionComplete = 0;
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detectCDThreadHandle = CreateThread(NULL,0,detectCDThread,NULL,0,NULL);
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if (detectCDThreadHandle == NULL)
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return; /* oh well. */
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while (!initialDiscDetectionComplete)
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Sleep(50);
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} /* if */
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drives = drivesWithMediaBitmap; /* whatever the thread has seen, we take. */
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for (i = 'A'; i <= 'Z'; i++)
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{
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if (drives & (1 << (i - 'A')))
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{
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drive_str[0] = (char) i;
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cb(data, drive_str);
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} /* if */
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} /* for */
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} /* __PHYSFS_platformDetectAvailableCDs */
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char *__PHYSFS_platformCalcBaseDir(const char *argv0)
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{
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DWORD buflen = 64;
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LPWSTR modpath = NULL;
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char *retval = NULL;
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while (1)
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{
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DWORD rc;
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void *ptr;
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if ( (ptr = allocator.Realloc(modpath, buflen*sizeof(WCHAR))) == NULL )
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{
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allocator.Free(modpath);
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BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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} /* if */
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modpath = (LPWSTR) ptr;
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rc = GetModuleFileNameW(NULL, modpath, buflen);
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if (rc == 0)
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{
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allocator.Free(modpath);
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BAIL_MACRO(errcodeFromWinApi(), NULL);
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} /* if */
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if (rc < buflen)
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{
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buflen = rc;
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break;
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} /* if */
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buflen *= 2;
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} /* while */
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360 |
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if (buflen > 0) /* just in case... */
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{
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WCHAR *ptr = (modpath + buflen) - 1;
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while (ptr != modpath)
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{
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if (*ptr == '\\')
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break;
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ptr--;
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} /* while */
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if ((ptr == modpath) && (*ptr != '\\'))
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__PHYSFS_setError(PHYSFS_ERR_OTHER_ERROR); /* oh well. */
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else
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{
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*(ptr+1) = '\0'; /* chop off filename. */
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retval = unicodeToUtf8Heap(modpath);
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} /* else */
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} /* else */
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allocator.Free(modpath);
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return retval; /* w00t. */
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} /* __PHYSFS_platformCalcBaseDir */
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char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
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{
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/*
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388 |
* Vista and later has a new API for this, but SHGetFolderPath works there,
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389 |
* and apparently just wraps the new API. This is the new way to do it:
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390 |
*
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391 |
* SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_CREATE,
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392 |
* NULL, &wszPath);
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393 |
*/
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394 |
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395 |
WCHAR path[MAX_PATH];
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396 |
char *utf8 = NULL;
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|
397 |
size_t len = 0;
|
|
398 |
char *retval = NULL;
|
|
399 |
|
|
400 |
if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
|
|
401 |
NULL, 0, path)))
|
|
402 |
BAIL_MACRO(PHYSFS_ERR_OS_ERROR, NULL);
|
|
403 |
|
|
404 |
utf8 = unicodeToUtf8Heap(path);
|
|
405 |
BAIL_IF_MACRO(!utf8, ERRPASS, NULL);
|
|
406 |
len = strlen(utf8) + strlen(org) + strlen(app) + 4;
|
|
407 |
retval = allocator.Malloc(len);
|
|
408 |
if (!retval)
|
|
409 |
{
|
|
410 |
allocator.Free(utf8);
|
|
411 |
BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
412 |
} /* if */
|
|
413 |
|
|
414 |
sprintf(retval, "%s\\%s\\%s\\", utf8, org, app);
|
|
415 |
return retval;
|
|
416 |
} /* __PHYSFS_platformCalcPrefDir */
|
|
417 |
|
|
418 |
|
|
419 |
char *__PHYSFS_platformCalcUserDir(void)
|
|
420 |
{
|
|
421 |
typedef BOOL (WINAPI *fnGetUserProfDirW)(HANDLE, LPWSTR, LPDWORD);
|
|
422 |
fnGetUserProfDirW pGetDir = NULL;
|
|
423 |
HANDLE lib = NULL;
|
|
424 |
HANDLE accessToken = NULL; /* Security handle to process */
|
|
425 |
char *retval = NULL;
|
|
426 |
|
|
427 |
lib = LoadLibraryA("userenv.dll");
|
|
428 |
BAIL_IF_MACRO(!lib, errcodeFromWinApi(), NULL);
|
|
429 |
pGetDir=(fnGetUserProfDirW) GetProcAddress(lib,"GetUserProfileDirectoryW");
|
|
430 |
GOTO_IF_MACRO(!pGetDir, errcodeFromWinApi(), done);
|
|
431 |
|
|
432 |
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &accessToken))
|
|
433 |
GOTO_MACRO(errcodeFromWinApi(), done);
|
|
434 |
else
|
|
435 |
{
|
|
436 |
DWORD psize = 0;
|
|
437 |
WCHAR dummy = 0;
|
|
438 |
LPWSTR wstr = NULL;
|
|
439 |
BOOL rc = 0;
|
|
440 |
|
|
441 |
/*
|
|
442 |
* Should fail. Will write the size of the profile path in
|
|
443 |
* psize. Also note that the second parameter can't be
|
|
444 |
* NULL or the function fails.
|
|
445 |
*/
|
10017
|
446 |
rc = pGetDir(accessToken, &dummy, &psize);
|
7768
|
447 |
assert(!rc); /* !!! FIXME: handle this gracefully. */
|
|
448 |
(void) rc;
|
|
449 |
|
|
450 |
/* Allocate memory for the profile directory */
|
|
451 |
wstr = (LPWSTR) __PHYSFS_smallAlloc((psize + 1) * sizeof (WCHAR));
|
|
452 |
if (wstr != NULL)
|
|
453 |
{
|
|
454 |
if (pGetDir(accessToken, wstr, &psize))
|
|
455 |
{
|
|
456 |
/* Make sure it ends in a dirsep. We allocated +1 for this. */
|
|
457 |
if (wstr[psize - 2] != '\\')
|
|
458 |
{
|
|
459 |
wstr[psize - 1] = '\\';
|
|
460 |
wstr[psize - 0] = '\0';
|
|
461 |
} /* if */
|
|
462 |
retval = unicodeToUtf8Heap(wstr);
|
|
463 |
} /* if */
|
|
464 |
__PHYSFS_smallFree(wstr);
|
|
465 |
} /* if */
|
|
466 |
|
|
467 |
CloseHandle(accessToken);
|
|
468 |
} /* if */
|
|
469 |
|
|
470 |
done:
|
|
471 |
FreeLibrary(lib);
|
|
472 |
return retval; /* We made it: hit the showers. */
|
|
473 |
} /* __PHYSFS_platformCalcUserDir */
|
|
474 |
|
|
475 |
|
|
476 |
void *__PHYSFS_platformGetThreadID(void)
|
|
477 |
{
|
|
478 |
return ( (void *) ((size_t) GetCurrentThreadId()) );
|
|
479 |
} /* __PHYSFS_platformGetThreadID */
|
|
480 |
|
|
481 |
|
|
482 |
static int isSymlinkAttrs(const DWORD attr, const DWORD tag)
|
|
483 |
{
|
10017
|
484 |
return ( (attr & FILE_ATTRIBUTE_REPARSE_POINT) &&
|
7768
|
485 |
(tag == PHYSFS_IO_REPARSE_TAG_SYMLINK) );
|
|
486 |
} /* isSymlinkAttrs */
|
|
487 |
|
|
488 |
|
|
489 |
void __PHYSFS_platformEnumerateFiles(const char *dirname,
|
|
490 |
int omitSymLinks,
|
|
491 |
PHYSFS_EnumFilesCallback callback,
|
|
492 |
const char *origdir,
|
|
493 |
void *callbackdata)
|
|
494 |
{
|
|
495 |
HANDLE dir = INVALID_HANDLE_VALUE;
|
|
496 |
WIN32_FIND_DATAW entw;
|
|
497 |
size_t len = strlen(dirname);
|
|
498 |
char *searchPath = NULL;
|
|
499 |
WCHAR *wSearchPath = NULL;
|
|
500 |
|
|
501 |
/* Allocate a new string for path, maybe '\\', "*", and NULL terminator */
|
|
502 |
searchPath = (char *) __PHYSFS_smallAlloc(len + 3);
|
|
503 |
if (searchPath == NULL)
|
|
504 |
return;
|
|
505 |
|
|
506 |
/* Copy current dirname */
|
|
507 |
strcpy(searchPath, dirname);
|
|
508 |
|
|
509 |
/* if there's no '\\' at the end of the path, stick one in there. */
|
|
510 |
if (searchPath[len - 1] != '\\')
|
|
511 |
{
|
|
512 |
searchPath[len++] = '\\';
|
|
513 |
searchPath[len] = '\0';
|
|
514 |
} /* if */
|
|
515 |
|
|
516 |
/* Append the "*" to the end of the string */
|
|
517 |
strcat(searchPath, "*");
|
|
518 |
|
|
519 |
UTF8_TO_UNICODE_STACK_MACRO(wSearchPath, searchPath);
|
|
520 |
if (!wSearchPath)
|
|
521 |
return; /* oh well. */
|
|
522 |
|
|
523 |
dir = FindFirstFileW(wSearchPath, &entw);
|
|
524 |
|
|
525 |
__PHYSFS_smallFree(wSearchPath);
|
|
526 |
__PHYSFS_smallFree(searchPath);
|
|
527 |
if (dir == INVALID_HANDLE_VALUE)
|
|
528 |
return;
|
|
529 |
|
|
530 |
do
|
|
531 |
{
|
|
532 |
const DWORD attr = entw.dwFileAttributes;
|
|
533 |
const DWORD tag = entw.dwReserved0;
|
|
534 |
const WCHAR *fn = entw.cFileName;
|
|
535 |
char *utf8;
|
|
536 |
|
|
537 |
if ((fn[0] == '.') && (fn[1] == '\0'))
|
|
538 |
continue;
|
|
539 |
if ((fn[0] == '.') && (fn[1] == '.') && (fn[2] == '\0'))
|
|
540 |
continue;
|
|
541 |
if ((omitSymLinks) && (isSymlinkAttrs(attr, tag)))
|
|
542 |
continue;
|
|
543 |
|
|
544 |
utf8 = unicodeToUtf8Heap(fn);
|
|
545 |
if (utf8 != NULL)
|
|
546 |
{
|
|
547 |
callback(callbackdata, origdir, utf8);
|
|
548 |
allocator.Free(utf8);
|
|
549 |
} /* if */
|
|
550 |
} while (FindNextFileW(dir, &entw) != 0);
|
|
551 |
|
|
552 |
FindClose(dir);
|
|
553 |
} /* __PHYSFS_platformEnumerateFiles */
|
|
554 |
|
|
555 |
|
|
556 |
int __PHYSFS_platformMkDir(const char *path)
|
|
557 |
{
|
|
558 |
WCHAR *wpath;
|
|
559 |
DWORD rc;
|
|
560 |
UTF8_TO_UNICODE_STACK_MACRO(wpath, path);
|
|
561 |
rc = CreateDirectoryW(wpath, NULL);
|
|
562 |
__PHYSFS_smallFree(wpath);
|
|
563 |
BAIL_IF_MACRO(rc == 0, errcodeFromWinApi(), 0);
|
|
564 |
return 1;
|
|
565 |
} /* __PHYSFS_platformMkDir */
|
|
566 |
|
|
567 |
|
|
568 |
int __PHYSFS_platformInit(void)
|
|
569 |
{
|
|
570 |
return 1; /* It's all good */
|
|
571 |
} /* __PHYSFS_platformInit */
|
|
572 |
|
|
573 |
|
|
574 |
int __PHYSFS_platformDeinit(void)
|
|
575 |
{
|
|
576 |
if (detectCDThreadHandle)
|
|
577 |
{
|
|
578 |
if (detectCDHwnd)
|
|
579 |
PostMessageW(detectCDHwnd, WM_QUIT, 0, 0);
|
|
580 |
CloseHandle(detectCDThreadHandle);
|
|
581 |
detectCDThreadHandle = NULL;
|
|
582 |
initialDiscDetectionComplete = 0;
|
|
583 |
drivesWithMediaBitmap = 0;
|
|
584 |
} /* if */
|
|
585 |
|
|
586 |
return 1; /* It's all good */
|
|
587 |
} /* __PHYSFS_platformDeinit */
|
|
588 |
|
|
589 |
|
|
590 |
static void *doOpen(const char *fname, DWORD mode, DWORD creation, int rdonly)
|
|
591 |
{
|
|
592 |
HANDLE fileh;
|
|
593 |
WinApiFile *retval;
|
|
594 |
WCHAR *wfname;
|
|
595 |
|
|
596 |
UTF8_TO_UNICODE_STACK_MACRO(wfname, fname);
|
|
597 |
BAIL_IF_MACRO(!wfname, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
598 |
fileh = CreateFileW(wfname, mode, FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
599 |
NULL, creation, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
600 |
__PHYSFS_smallFree(wfname);
|
|
601 |
|
|
602 |
BAIL_IF_MACRO(fileh == INVALID_HANDLE_VALUE,errcodeFromWinApi(), NULL);
|
|
603 |
|
|
604 |
retval = (WinApiFile *) allocator.Malloc(sizeof (WinApiFile));
|
|
605 |
if (!retval)
|
|
606 |
{
|
|
607 |
CloseHandle(fileh);
|
|
608 |
BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
609 |
} /* if */
|
|
610 |
|
|
611 |
retval->readonly = rdonly;
|
|
612 |
retval->handle = fileh;
|
|
613 |
return retval;
|
|
614 |
} /* doOpen */
|
|
615 |
|
|
616 |
|
|
617 |
void *__PHYSFS_platformOpenRead(const char *filename)
|
|
618 |
{
|
|
619 |
return doOpen(filename, GENERIC_READ, OPEN_EXISTING, 1);
|
|
620 |
} /* __PHYSFS_platformOpenRead */
|
|
621 |
|
|
622 |
|
|
623 |
void *__PHYSFS_platformOpenWrite(const char *filename)
|
|
624 |
{
|
|
625 |
return doOpen(filename, GENERIC_WRITE, CREATE_ALWAYS, 0);
|
|
626 |
} /* __PHYSFS_platformOpenWrite */
|
|
627 |
|
|
628 |
|
|
629 |
void *__PHYSFS_platformOpenAppend(const char *filename)
|
|
630 |
{
|
|
631 |
void *retval = doOpen(filename, GENERIC_WRITE, OPEN_ALWAYS, 0);
|
|
632 |
if (retval != NULL)
|
|
633 |
{
|
|
634 |
HANDLE h = ((WinApiFile *) retval)->handle;
|
|
635 |
DWORD rc = SetFilePointer(h, 0, NULL, FILE_END);
|
|
636 |
if (rc == PHYSFS_INVALID_SET_FILE_POINTER)
|
|
637 |
{
|
|
638 |
const PHYSFS_ErrorCode err = errcodeFromWinApi();
|
|
639 |
CloseHandle(h);
|
|
640 |
allocator.Free(retval);
|
|
641 |
BAIL_MACRO(err, NULL);
|
|
642 |
} /* if */
|
|
643 |
} /* if */
|
|
644 |
|
|
645 |
return retval;
|
|
646 |
} /* __PHYSFS_platformOpenAppend */
|
|
647 |
|
|
648 |
|
|
649 |
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buf, PHYSFS_uint64 len)
|
|
650 |
{
|
|
651 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
652 |
PHYSFS_sint64 totalRead = 0;
|
|
653 |
|
|
654 |
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
655 |
BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
656 |
|
|
657 |
while (len > 0)
|
|
658 |
{
|
|
659 |
const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
|
|
660 |
DWORD numRead = 0;
|
|
661 |
if (!ReadFile(Handle, buf, thislen, &numRead, NULL))
|
|
662 |
BAIL_MACRO(errcodeFromWinApi(), -1);
|
|
663 |
len -= (PHYSFS_uint64) numRead;
|
|
664 |
totalRead += (PHYSFS_sint64) numRead;
|
|
665 |
if (numRead != thislen)
|
|
666 |
break;
|
|
667 |
} /* while */
|
|
668 |
|
|
669 |
return totalRead;
|
|
670 |
} /* __PHYSFS_platformRead */
|
|
671 |
|
|
672 |
|
|
673 |
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
|
|
674 |
PHYSFS_uint64 len)
|
|
675 |
{
|
|
676 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
677 |
PHYSFS_sint64 totalWritten = 0;
|
|
678 |
|
|
679 |
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
680 |
BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
681 |
|
|
682 |
while (len > 0)
|
|
683 |
{
|
|
684 |
const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
|
|
685 |
DWORD numWritten = 0;
|
|
686 |
if (!WriteFile(Handle, buffer, thislen, &numWritten, NULL))
|
|
687 |
BAIL_MACRO(errcodeFromWinApi(), -1);
|
|
688 |
len -= (PHYSFS_uint64) numWritten;
|
|
689 |
totalWritten += (PHYSFS_sint64) numWritten;
|
|
690 |
if (numWritten != thislen)
|
|
691 |
break;
|
|
692 |
} /* while */
|
|
693 |
|
|
694 |
return totalWritten;
|
|
695 |
} /* __PHYSFS_platformWrite */
|
|
696 |
|
|
697 |
|
|
698 |
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
|
|
699 |
{
|
|
700 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
701 |
LONG HighOrderPos;
|
|
702 |
PLONG pHighOrderPos;
|
|
703 |
DWORD rc;
|
|
704 |
|
|
705 |
/* Get the high order 32-bits of the position */
|
|
706 |
HighOrderPos = HIGHORDER_UINT64(pos);
|
|
707 |
|
|
708 |
/*
|
|
709 |
* MSDN: "If you do not need the high-order 32 bits, this
|
|
710 |
* pointer must be set to NULL."
|
|
711 |
*/
|
|
712 |
pHighOrderPos = (HighOrderPos) ? &HighOrderPos : NULL;
|
|
713 |
|
|
714 |
/* Move pointer "pos" count from start of file */
|
|
715 |
rc = SetFilePointer(Handle, LOWORDER_UINT64(pos),
|
|
716 |
pHighOrderPos, FILE_BEGIN);
|
|
717 |
|
|
718 |
if ( (rc == PHYSFS_INVALID_SET_FILE_POINTER) &&
|
|
719 |
(GetLastError() != NO_ERROR) )
|
|
720 |
{
|
|
721 |
BAIL_MACRO(errcodeFromWinApi(), 0);
|
|
722 |
} /* if */
|
10017
|
723 |
|
7768
|
724 |
return 1; /* No error occured */
|
|
725 |
} /* __PHYSFS_platformSeek */
|
|
726 |
|
|
727 |
|
|
728 |
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
|
|
729 |
{
|
|
730 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
731 |
LONG HighPos = 0;
|
|
732 |
DWORD LowPos;
|
|
733 |
PHYSFS_sint64 retval;
|
|
734 |
|
|
735 |
/* Get current position */
|
|
736 |
LowPos = SetFilePointer(Handle, 0, &HighPos, FILE_CURRENT);
|
|
737 |
if ( (LowPos == PHYSFS_INVALID_SET_FILE_POINTER) &&
|
|
738 |
(GetLastError() != NO_ERROR) )
|
|
739 |
{
|
|
740 |
BAIL_MACRO(errcodeFromWinApi(), -1);
|
|
741 |
} /* if */
|
|
742 |
else
|
|
743 |
{
|
|
744 |
/* Combine the high/low order to create the 64-bit position value */
|
|
745 |
retval = (((PHYSFS_uint64) HighPos) << 32) | LowPos;
|
|
746 |
assert(retval >= 0);
|
|
747 |
} /* else */
|
|
748 |
|
|
749 |
return retval;
|
|
750 |
} /* __PHYSFS_platformTell */
|
|
751 |
|
|
752 |
|
|
753 |
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
|
|
754 |
{
|
|
755 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
756 |
DWORD SizeHigh;
|
|
757 |
DWORD SizeLow;
|
|
758 |
PHYSFS_sint64 retval;
|
|
759 |
|
|
760 |
SizeLow = GetFileSize(Handle, &SizeHigh);
|
|
761 |
if ( (SizeLow == PHYSFS_INVALID_SET_FILE_POINTER) &&
|
|
762 |
(GetLastError() != NO_ERROR) )
|
|
763 |
{
|
|
764 |
BAIL_MACRO(errcodeFromWinApi(), -1);
|
|
765 |
} /* if */
|
|
766 |
else
|
|
767 |
{
|
|
768 |
/* Combine the high/low order to create the 64-bit position value */
|
|
769 |
retval = (((PHYSFS_uint64) SizeHigh) << 32) | SizeLow;
|
|
770 |
assert(retval >= 0);
|
|
771 |
} /* else */
|
|
772 |
|
|
773 |
return retval;
|
|
774 |
} /* __PHYSFS_platformFileLength */
|
|
775 |
|
|
776 |
|
|
777 |
int __PHYSFS_platformFlush(void *opaque)
|
|
778 |
{
|
|
779 |
WinApiFile *fh = ((WinApiFile *) opaque);
|
|
780 |
if (!fh->readonly)
|
|
781 |
BAIL_IF_MACRO(!FlushFileBuffers(fh->handle), errcodeFromWinApi(), 0);
|
|
782 |
|
|
783 |
return 1;
|
|
784 |
} /* __PHYSFS_platformFlush */
|
|
785 |
|
|
786 |
|
|
787 |
void __PHYSFS_platformClose(void *opaque)
|
|
788 |
{
|
|
789 |
HANDLE Handle = ((WinApiFile *) opaque)->handle;
|
|
790 |
(void) CloseHandle(Handle); /* ignore errors. You should have flushed! */
|
|
791 |
allocator.Free(opaque);
|
|
792 |
} /* __PHYSFS_platformClose */
|
|
793 |
|
|
794 |
|
|
795 |
static int doPlatformDelete(LPWSTR wpath)
|
|
796 |
{
|
|
797 |
const int isdir = (GetFileAttributesW(wpath) & FILE_ATTRIBUTE_DIRECTORY);
|
|
798 |
const BOOL rc = (isdir) ? RemoveDirectoryW(wpath) : DeleteFileW(wpath);
|
|
799 |
BAIL_IF_MACRO(!rc, errcodeFromWinApi(), 0);
|
|
800 |
return 1; /* if you made it here, it worked. */
|
|
801 |
} /* doPlatformDelete */
|
|
802 |
|
|
803 |
|
|
804 |
int __PHYSFS_platformDelete(const char *path)
|
|
805 |
{
|
|
806 |
int retval = 0;
|
|
807 |
LPWSTR wpath = NULL;
|
|
808 |
UTF8_TO_UNICODE_STACK_MACRO(wpath, path);
|
|
809 |
BAIL_IF_MACRO(!wpath, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
810 |
retval = doPlatformDelete(wpath);
|
|
811 |
__PHYSFS_smallFree(wpath);
|
|
812 |
return retval;
|
|
813 |
} /* __PHYSFS_platformDelete */
|
|
814 |
|
|
815 |
|
|
816 |
void *__PHYSFS_platformCreateMutex(void)
|
|
817 |
{
|
|
818 |
LPCRITICAL_SECTION lpcs;
|
|
819 |
lpcs = (LPCRITICAL_SECTION) allocator.Malloc(sizeof (CRITICAL_SECTION));
|
|
820 |
BAIL_IF_MACRO(!lpcs, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
821 |
InitializeCriticalSection(lpcs);
|
|
822 |
return lpcs;
|
|
823 |
} /* __PHYSFS_platformCreateMutex */
|
|
824 |
|
|
825 |
|
|
826 |
void __PHYSFS_platformDestroyMutex(void *mutex)
|
|
827 |
{
|
|
828 |
DeleteCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
829 |
allocator.Free(mutex);
|
|
830 |
} /* __PHYSFS_platformDestroyMutex */
|
|
831 |
|
|
832 |
|
|
833 |
int __PHYSFS_platformGrabMutex(void *mutex)
|
|
834 |
{
|
|
835 |
EnterCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
836 |
return 1;
|
|
837 |
} /* __PHYSFS_platformGrabMutex */
|
|
838 |
|
|
839 |
|
|
840 |
void __PHYSFS_platformReleaseMutex(void *mutex)
|
|
841 |
{
|
|
842 |
LeaveCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
843 |
} /* __PHYSFS_platformReleaseMutex */
|
|
844 |
|
|
845 |
|
|
846 |
static PHYSFS_sint64 FileTimeToPhysfsTime(const FILETIME *ft)
|
|
847 |
{
|
|
848 |
SYSTEMTIME st_utc;
|
|
849 |
SYSTEMTIME st_localtz;
|
|
850 |
TIME_ZONE_INFORMATION tzi;
|
|
851 |
DWORD tzid;
|
|
852 |
PHYSFS_sint64 retval;
|
|
853 |
struct tm tm;
|
|
854 |
BOOL rc;
|
|
855 |
|
|
856 |
BAIL_IF_MACRO(!FileTimeToSystemTime(ft, &st_utc), errcodeFromWinApi(), -1);
|
|
857 |
tzid = GetTimeZoneInformation(&tzi);
|
|
858 |
BAIL_IF_MACRO(tzid == TIME_ZONE_ID_INVALID, errcodeFromWinApi(), -1);
|
|
859 |
rc = SystemTimeToTzSpecificLocalTime(&tzi, &st_utc, &st_localtz);
|
|
860 |
BAIL_IF_MACRO(!rc, errcodeFromWinApi(), -1);
|
|
861 |
|
|
862 |
/* Convert to a format that mktime() can grok... */
|
|
863 |
tm.tm_sec = st_localtz.wSecond;
|
|
864 |
tm.tm_min = st_localtz.wMinute;
|
|
865 |
tm.tm_hour = st_localtz.wHour;
|
|
866 |
tm.tm_mday = st_localtz.wDay;
|
|
867 |
tm.tm_mon = st_localtz.wMonth - 1;
|
|
868 |
tm.tm_year = st_localtz.wYear - 1900;
|
|
869 |
tm.tm_wday = -1 /*st_localtz.wDayOfWeek*/;
|
|
870 |
tm.tm_yday = -1;
|
|
871 |
tm.tm_isdst = -1;
|
|
872 |
|
|
873 |
/* Convert to a format PhysicsFS can grok... */
|
|
874 |
retval = (PHYSFS_sint64) mktime(&tm);
|
|
875 |
BAIL_IF_MACRO(retval == -1, PHYSFS_ERR_OS_ERROR, -1);
|
|
876 |
return retval;
|
|
877 |
} /* FileTimeToPhysfsTime */
|
|
878 |
|
|
879 |
int __PHYSFS_platformStat(const char *filename, int *exists, PHYSFS_Stat *stat)
|
|
880 |
{
|
|
881 |
WIN32_FILE_ATTRIBUTE_DATA winstat;
|
|
882 |
WCHAR *wstr = NULL;
|
|
883 |
DWORD err = 0;
|
|
884 |
BOOL rc = 0;
|
|
885 |
|
|
886 |
UTF8_TO_UNICODE_STACK_MACRO(wstr, filename);
|
|
887 |
BAIL_IF_MACRO(!wstr, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
888 |
rc = GetFileAttributesExW(wstr, GetFileExInfoStandard, &winstat);
|
|
889 |
err = (!rc) ? GetLastError() : 0;
|
|
890 |
*exists = ((err != ERROR_FILE_NOT_FOUND) && (err != ERROR_PATH_NOT_FOUND));
|
|
891 |
__PHYSFS_smallFree(wstr);
|
|
892 |
BAIL_IF_MACRO(!rc, errcodeFromWinApiError(err), 0);
|
|
893 |
|
|
894 |
stat->modtime = FileTimeToPhysfsTime(&winstat.ftLastWriteTime);
|
|
895 |
stat->accesstime = FileTimeToPhysfsTime(&winstat.ftLastAccessTime);
|
|
896 |
stat->createtime = FileTimeToPhysfsTime(&winstat.ftCreationTime);
|
|
897 |
|
|
898 |
if(winstat.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
899 |
{
|
|
900 |
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
|
|
901 |
stat->filesize = 0;
|
|
902 |
} /* if */
|
|
903 |
|
|
904 |
else if(winstat.dwFileAttributes & (FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_DEVICE))
|
|
905 |
{
|
|
906 |
/* !!! FIXME: what are reparse points? */
|
|
907 |
stat->filetype = PHYSFS_FILETYPE_OTHER;
|
|
908 |
/* !!! FIXME: don't rely on this */
|
|
909 |
stat->filesize = 0;
|
|
910 |
} /* else if */
|
|
911 |
|
|
912 |
/* !!! FIXME: check for symlinks on Vista. */
|
|
913 |
|
|
914 |
else
|
|
915 |
{
|
|
916 |
stat->filetype = PHYSFS_FILETYPE_REGULAR;
|
|
917 |
stat->filesize = (((PHYSFS_uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow;
|
|
918 |
} /* else */
|
|
919 |
|
|
920 |
stat->readonly = ((winstat.dwFileAttributes & FILE_ATTRIBUTE_READONLY) != 0);
|
|
921 |
|
|
922 |
return 1;
|
|
923 |
} /* __PHYSFS_platformStat */
|
|
924 |
|
|
925 |
|
|
926 |
/* !!! FIXME: Don't use C runtime for allocators? */
|
|
927 |
int __PHYSFS_platformSetDefaultAllocator(PHYSFS_Allocator *a)
|
|
928 |
{
|
|
929 |
return 0; /* just use malloc() and friends. */
|
|
930 |
} /* __PHYSFS_platformSetDefaultAllocator */
|
|
931 |
|
|
932 |
#endif /* PHYSFS_PLATFORM_WINDOWS */
|
|
933 |
|
|
934 |
/* end of windows.c ... */
|
|
935 |
|
|
936 |
|