mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-09-05 09:56:29 +02:00
1029 lines
31 KiB
C
1029 lines
31 KiB
C
/*
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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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#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
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#define _CRT_SECURE_NO_WARNINGS 1
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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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#ifndef PHYSFS_PLATFORM_WINRT
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#include <userenv.h>
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#include <shlobj.h>
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#endif
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#if !defined(PHYSFS_NO_CDROM_SUPPORT)
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#include <dbt.h>
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#endif
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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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#ifdef allocator /* apparently Windows 10 SDK conflicts here. */
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#undef allocator
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#endif
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#include "physfs_internal.h"
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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_FILE_ATTRIBUTE_REPARSE_POINT 0x400
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#define PHYSFS_IO_REPARSE_TAG_SYMLINK 0xA000000C
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#define UTF8_TO_UNICODE_STACK(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 size_t 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(!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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/* Some older APIs aren't in WinRT (only the "Ex" version, etc).
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Since non-WinRT might not have the "Ex" version, we tapdance to use
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the perfectly-fine-and-available-even-on-Win95 API on non-WinRT targets. */
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static inline HANDLE winFindFirstFileW(const WCHAR *path, LPWIN32_FIND_DATAW d)
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{
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#ifdef PHYSFS_PLATFORM_WINRT
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return FindFirstFileExW(path, FindExInfoStandard, d,
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FindExSearchNameMatch, NULL, 0);
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#else
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return FindFirstFileW(path, d);
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#endif
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} /* winFindFirstFileW */
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static inline BOOL winInitializeCriticalSection(LPCRITICAL_SECTION lpcs)
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{
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#ifdef PHYSFS_PLATFORM_WINRT
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return InitializeCriticalSectionEx(lpcs, 2000, 0);
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#else
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InitializeCriticalSection(lpcs);
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return TRUE;
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#endif
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} /* winInitializeCriticalSection */
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static inline HANDLE winCreateFileW(const WCHAR *wfname, const DWORD mode,
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const DWORD creation)
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{
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const DWORD share = FILE_SHARE_READ | FILE_SHARE_WRITE;
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#ifdef PHYSFS_PLATFORM_WINRT
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return CreateFile2(wfname, mode, share, creation, NULL);
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#else
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return CreateFileW(wfname, mode, share, NULL, creation,
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FILE_ATTRIBUTE_NORMAL, NULL);
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#endif
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} /* winCreateFileW */
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static BOOL winSetFilePointer(HANDLE h, const PHYSFS_sint64 pos,
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PHYSFS_sint64 *_newpos, const DWORD whence)
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{
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#ifdef PHYSFS_PLATFORM_WINRT
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LARGE_INTEGER lipos;
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LARGE_INTEGER linewpos;
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BOOL rc;
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lipos.QuadPart = (LONGLONG) pos;
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rc = SetFilePointerEx(h, lipos, &linewpos, whence);
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if (_newpos)
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*_newpos = (PHYSFS_sint64) linewpos.QuadPart;
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return rc;
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#else
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const LONG low = (LONG) (pos & 0xFFFFFFFF);
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LONG high = (LONG) ((pos >> 32) & 0xFFFFFFFF);
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const DWORD rc = SetFilePointer(h, low, &high, whence);
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/* 0xFFFFFFFF could be valid, so you have to check GetLastError too! */
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if (_newpos)
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*_newpos = ((PHYSFS_sint64) rc) | (((PHYSFS_sint64) high) << 32);
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if ((rc == PHYSFS_INVALID_SET_FILE_POINTER) && (GetLastError() != NO_ERROR))
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return FALSE;
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return TRUE;
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#endif
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} /* winSetFilePointer */
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static PHYSFS_sint64 winGetFileSize(HANDLE h)
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{
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#ifdef PHYSFS_PLATFORM_WINRT
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FILE_STANDARD_INFO info;
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const BOOL rc = GetFileInformationByHandleEx(h, FileStandardInfo,
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&info, sizeof (info));
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return rc ? (PHYSFS_sint64) info.EndOfFile.QuadPart : -1;
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#else
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DWORD high = 0;
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const DWORD rc = GetFileSize(h, &high);
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if ((rc == PHYSFS_INVALID_SET_FILE_POINTER) && (GetLastError() != NO_ERROR))
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return -1;
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return (PHYSFS_sint64) ((((PHYSFS_uint64) high) << 32) | rc);
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#endif
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} /* winGetFileSize */
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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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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_NOT_FOUND;
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case ERROR_PATH_NOT_FOUND: return PHYSFS_ERR_NOT_FOUND;
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case ERROR_DELETE_PENDING: return PHYSFS_ERR_NOT_FOUND;
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case ERROR_INVALID_DRIVE: return PHYSFS_ERR_NOT_FOUND;
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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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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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#if defined(PHYSFS_NO_CDROM_SUPPORT)
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#define detectAvailableCDs(cb, data)
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#define deinitCDThread()
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#else
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static HANDLE detectCDThreadHandle = NULL;
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static HWND detectCDHwnd = NULL;
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static volatile DWORD drivesWithMediaBitmap = 0;
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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 arg)
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{
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HANDLE initialDiscDetectionComplete = *((HANDLE *) arg);
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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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SetEvent(initialDiscDetectionComplete); /* 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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SetEvent(initialDiscDetectionComplete); /* 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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SetEvent(initialDiscDetectionComplete); /* 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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UnregisterClassA(classname, hInstance);
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return 0;
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} /* detectCDThread */
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static void detectAvailableCDs(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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HANDLE initialDetectDone = CreateEvent(NULL, TRUE, FALSE, NULL);
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if (!initialDetectDone)
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return; /* oh well. */
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detectCDThreadHandle = CreateThread(NULL, 0, detectCDThread,
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&initialDetectDone, 0, NULL);
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if (detectCDThreadHandle)
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WaitForSingleObject(initialDetectDone, INFINITE);
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CloseHandle(initialDetectDone);
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if (!detectCDThreadHandle)
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return; /* oh well. */
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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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} /* detectAvailableCDs */
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static void deinitCDThread(void)
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{
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if (detectCDThreadHandle)
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{
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if (detectCDHwnd)
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PostMessageW(detectCDHwnd, WM_QUIT, 0, 0);
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CloseHandle(detectCDThreadHandle);
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detectCDThreadHandle = NULL;
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drivesWithMediaBitmap = 0;
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} /* if */
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} /* deinitCDThread */
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#endif
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
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{
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detectAvailableCDs(cb, data);
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} /* __PHYSFS_platformDetectAvailableCDs */
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#ifdef PHYSFS_PLATFORM_WINRT
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static char *calcDirAppendSep(const WCHAR *wdir)
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{
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size_t len;
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void *ptr;
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char *retval;
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BAIL_IF(!wdir, errcodeFromWinApi(), NULL);
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retval = unicodeToUtf8Heap(wdir);
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BAIL_IF_ERRPASS(!retval, NULL);
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len = strlen(retval);
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ptr = allocator.Realloc(retval, len + 2);
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if (!ptr)
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{
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allocator.Free(retval);
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BAIL(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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} /* if */
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retval = (char *) ptr;
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retval[len] = '\\';
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retval[len+1] = '\0';
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return retval;
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} /* calcDirAppendSep */
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#endif
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char *__PHYSFS_platformCalcBaseDir(const char *argv0)
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{
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#ifdef PHYSFS_PLATFORM_WINRT
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return calcDirAppendSep((const WCHAR *) __PHYSFS_winrtCalcBaseDir());
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#else
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char *retval = NULL;
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DWORD buflen = 64;
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LPWSTR modpath = 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(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(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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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)
|
|
{
|
|
if (*ptr == '\\')
|
|
break;
|
|
ptr--;
|
|
} /* while */
|
|
|
|
if ((ptr == modpath) && (*ptr != '\\'))
|
|
PHYSFS_setErrorCode(PHYSFS_ERR_OTHER_ERROR); /* oh well. */
|
|
else
|
|
{
|
|
*(ptr+1) = '\0'; /* chop off filename. */
|
|
retval = unicodeToUtf8Heap(modpath);
|
|
} /* else */
|
|
} /* else */
|
|
allocator.Free(modpath);
|
|
|
|
return retval; /* w00t. */
|
|
#endif
|
|
} /* __PHYSFS_platformCalcBaseDir */
|
|
|
|
|
|
char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
|
|
{
|
|
#ifdef PHYSFS_PLATFORM_WINRT
|
|
return calcDirAppendSep((const WCHAR *) __PHYSFS_winrtCalcPrefDir());
|
|
#else
|
|
/*
|
|
* Vista and later has a new API for this, but SHGetFolderPath works there,
|
|
* and apparently just wraps the new API. This is the new way to do it:
|
|
*
|
|
* SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_CREATE,
|
|
* NULL, &wszPath);
|
|
*/
|
|
|
|
WCHAR path[MAX_PATH];
|
|
char *utf8 = NULL;
|
|
size_t len = 0;
|
|
char *retval = NULL;
|
|
|
|
if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
|
|
NULL, 0, path)))
|
|
BAIL(PHYSFS_ERR_OS_ERROR, NULL);
|
|
|
|
utf8 = unicodeToUtf8Heap(path);
|
|
BAIL_IF_ERRPASS(!utf8, NULL);
|
|
len = strlen(utf8) + strlen(org) + strlen(app) + 4;
|
|
retval = allocator.Malloc(len);
|
|
if (!retval)
|
|
{
|
|
allocator.Free(utf8);
|
|
BAIL(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
} /* if */
|
|
|
|
snprintf(retval, len, "%s\\%s\\%s\\", utf8, org, app);
|
|
allocator.Free(utf8);
|
|
return retval;
|
|
#endif
|
|
} /* __PHYSFS_platformCalcPrefDir */
|
|
|
|
|
|
char *__PHYSFS_platformCalcUserDir(void)
|
|
{
|
|
#ifdef PHYSFS_PLATFORM_WINRT
|
|
return calcDirAppendSep((const WCHAR *) __PHYSFS_winrtCalcPrefDir());
|
|
#else
|
|
typedef BOOL (WINAPI *fnGetUserProfDirW)(HANDLE, LPWSTR, LPDWORD);
|
|
fnGetUserProfDirW pGetDir = NULL;
|
|
HANDLE lib = NULL;
|
|
HANDLE accessToken = NULL; /* Security handle to process */
|
|
char *retval = NULL;
|
|
|
|
lib = LoadLibraryA("userenv.dll");
|
|
BAIL_IF(!lib, errcodeFromWinApi(), NULL);
|
|
pGetDir=(fnGetUserProfDirW) GetProcAddress(lib,"GetUserProfileDirectoryW");
|
|
GOTO_IF(!pGetDir, errcodeFromWinApi(), done);
|
|
|
|
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &accessToken))
|
|
GOTO(errcodeFromWinApi(), done);
|
|
else
|
|
{
|
|
DWORD psize = 0;
|
|
LPWSTR wstr = NULL;
|
|
BOOL rc = 0;
|
|
|
|
/*
|
|
* Should fail. Will write the size of the profile path in
|
|
* psize. Also note that the second parameter can't be
|
|
* NULL or the function fails on Windows XP, but has to be NULL on
|
|
* Windows 10 or it will fail. :(
|
|
*/
|
|
rc = pGetDir(accessToken, NULL, &psize);
|
|
GOTO_IF(rc, PHYSFS_ERR_OS_ERROR, done); /* should have failed! */
|
|
|
|
if (psize == 0) /* probably on Windows XP, try a different way. */
|
|
{
|
|
WCHAR x = 0;
|
|
rc = pGetDir(accessToken, &x, &psize);
|
|
GOTO_IF(rc, PHYSFS_ERR_OS_ERROR, done); /* should have failed! */
|
|
GOTO_IF(!psize, PHYSFS_ERR_OS_ERROR, done); /* Uhoh... */
|
|
} /* if */
|
|
|
|
/* Allocate memory for the profile directory */
|
|
wstr = (LPWSTR) __PHYSFS_smallAlloc((psize + 1) * sizeof (WCHAR));
|
|
if (wstr != NULL)
|
|
{
|
|
if (pGetDir(accessToken, wstr, &psize))
|
|
{
|
|
/* Make sure it ends in a dirsep. We allocated +1 for this. */
|
|
if (wstr[psize - 2] != '\\')
|
|
{
|
|
wstr[psize - 1] = '\\';
|
|
wstr[psize - 0] = '\0';
|
|
} /* if */
|
|
retval = unicodeToUtf8Heap(wstr);
|
|
} /* if */
|
|
__PHYSFS_smallFree(wstr);
|
|
} /* if */
|
|
} /* if */
|
|
|
|
done:
|
|
if (accessToken)
|
|
CloseHandle(accessToken);
|
|
FreeLibrary(lib);
|
|
return retval; /* We made it: hit the showers. */
|
|
#endif
|
|
} /* __PHYSFS_platformCalcUserDir */
|
|
|
|
|
|
int __PHYSFS_platformInit(void)
|
|
{
|
|
return 1; /* It's all good */
|
|
} /* __PHYSFS_platformInit */
|
|
|
|
|
|
void __PHYSFS_platformDeinit(void)
|
|
{
|
|
deinitCDThread();
|
|
} /* __PHYSFS_platformDeinit */
|
|
|
|
|
|
void *__PHYSFS_platformGetThreadID(void)
|
|
{
|
|
return ( (void *) ((size_t) GetCurrentThreadId()) );
|
|
} /* __PHYSFS_platformGetThreadID */
|
|
|
|
|
|
PHYSFS_EnumerateCallbackResult __PHYSFS_platformEnumerate(const char *dirname,
|
|
PHYSFS_EnumerateCallback callback,
|
|
const char *origdir, void *callbackdata)
|
|
{
|
|
PHYSFS_EnumerateCallbackResult retval = PHYSFS_ENUM_OK;
|
|
HANDLE dir = INVALID_HANDLE_VALUE;
|
|
WIN32_FIND_DATAW entw;
|
|
size_t len = strlen(dirname);
|
|
char *searchPath = NULL;
|
|
WCHAR *wSearchPath = NULL;
|
|
|
|
/* Allocate a new string for path, maybe '\\', "*", and NULL terminator */
|
|
searchPath = (char *) __PHYSFS_smallAlloc(len + 3);
|
|
BAIL_IF(!searchPath, PHYSFS_ERR_OUT_OF_MEMORY, PHYSFS_ENUM_ERROR);
|
|
|
|
/* Copy current dirname */
|
|
strcpy(searchPath, dirname);
|
|
|
|
/* if there's no '\\' at the end of the path, stick one in there. */
|
|
if (searchPath[len - 1] != '\\')
|
|
{
|
|
searchPath[len++] = '\\';
|
|
searchPath[len] = '\0';
|
|
} /* if */
|
|
|
|
/* Append the "*" to the end of the string */
|
|
strcat(searchPath, "*");
|
|
|
|
UTF8_TO_UNICODE_STACK(wSearchPath, searchPath);
|
|
__PHYSFS_smallFree(searchPath);
|
|
BAIL_IF_ERRPASS(!wSearchPath, PHYSFS_ENUM_ERROR);
|
|
|
|
dir = winFindFirstFileW(wSearchPath, &entw);
|
|
__PHYSFS_smallFree(wSearchPath);
|
|
BAIL_IF(dir==INVALID_HANDLE_VALUE, errcodeFromWinApi(), PHYSFS_ENUM_ERROR);
|
|
|
|
do
|
|
{
|
|
const WCHAR *fn = entw.cFileName;
|
|
char *utf8;
|
|
|
|
if (fn[0] == '.') /* ignore "." and ".." */
|
|
{
|
|
if ((fn[1] == '\0') || ((fn[1] == '.') && (fn[2] == '\0')))
|
|
continue;
|
|
} /* if */
|
|
|
|
utf8 = unicodeToUtf8Heap(fn);
|
|
if (utf8 == NULL)
|
|
retval = -1;
|
|
else
|
|
{
|
|
retval = callback(callbackdata, origdir, utf8);
|
|
allocator.Free(utf8);
|
|
if (retval == PHYSFS_ENUM_ERROR)
|
|
PHYSFS_setErrorCode(PHYSFS_ERR_APP_CALLBACK);
|
|
} /* else */
|
|
} while ((retval == PHYSFS_ENUM_OK) && (FindNextFileW(dir, &entw) != 0));
|
|
|
|
FindClose(dir);
|
|
|
|
return retval;
|
|
} /* __PHYSFS_platformEnumerate */
|
|
|
|
|
|
int __PHYSFS_platformMkDir(const char *path)
|
|
{
|
|
WCHAR *wpath;
|
|
DWORD rc;
|
|
UTF8_TO_UNICODE_STACK(wpath, path);
|
|
rc = CreateDirectoryW(wpath, NULL);
|
|
__PHYSFS_smallFree(wpath);
|
|
BAIL_IF(rc == 0, errcodeFromWinApi(), 0);
|
|
return 1;
|
|
} /* __PHYSFS_platformMkDir */
|
|
|
|
|
|
static HANDLE doOpen(const char *fname, DWORD mode, DWORD creation)
|
|
{
|
|
HANDLE fileh;
|
|
WCHAR *wfname;
|
|
|
|
UTF8_TO_UNICODE_STACK(wfname, fname);
|
|
BAIL_IF(!wfname, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
|
fileh = winCreateFileW(wfname, mode, creation);
|
|
__PHYSFS_smallFree(wfname);
|
|
|
|
if (fileh == INVALID_HANDLE_VALUE)
|
|
BAIL(errcodeFromWinApi(), INVALID_HANDLE_VALUE);
|
|
|
|
return fileh;
|
|
} /* doOpen */
|
|
|
|
|
|
void *__PHYSFS_platformOpenRead(const char *filename)
|
|
{
|
|
HANDLE h = doOpen(filename, GENERIC_READ, OPEN_EXISTING);
|
|
return (h == INVALID_HANDLE_VALUE) ? NULL : (void *) h;
|
|
} /* __PHYSFS_platformOpenRead */
|
|
|
|
|
|
void *__PHYSFS_platformOpenWrite(const char *filename)
|
|
{
|
|
HANDLE h = doOpen(filename, GENERIC_WRITE, CREATE_ALWAYS);
|
|
return (h == INVALID_HANDLE_VALUE) ? NULL : (void *) h;
|
|
} /* __PHYSFS_platformOpenWrite */
|
|
|
|
|
|
void *__PHYSFS_platformOpenAppend(const char *filename)
|
|
{
|
|
HANDLE h = doOpen(filename, GENERIC_WRITE, OPEN_ALWAYS);
|
|
BAIL_IF_ERRPASS(h == INVALID_HANDLE_VALUE, NULL);
|
|
|
|
if (!winSetFilePointer(h, 0, NULL, FILE_END))
|
|
{
|
|
const PHYSFS_ErrorCode err = errcodeFromWinApi();
|
|
CloseHandle(h);
|
|
BAIL(err, NULL);
|
|
} /* if */
|
|
|
|
return (void *) h;
|
|
} /* __PHYSFS_platformOpenAppend */
|
|
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buf, PHYSFS_uint64 len)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
PHYSFS_sint64 totalRead = 0;
|
|
|
|
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
BAIL(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
|
while (len > 0)
|
|
{
|
|
const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
|
|
DWORD numRead = 0;
|
|
if (!ReadFile(h, buf, thislen, &numRead, NULL))
|
|
BAIL(errcodeFromWinApi(), -1);
|
|
len -= (PHYSFS_uint64) numRead;
|
|
totalRead += (PHYSFS_sint64) numRead;
|
|
if (numRead != thislen)
|
|
break;
|
|
} /* while */
|
|
|
|
return totalRead;
|
|
} /* __PHYSFS_platformRead */
|
|
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
|
|
PHYSFS_uint64 len)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
PHYSFS_sint64 totalWritten = 0;
|
|
|
|
if (!__PHYSFS_ui64FitsAddressSpace(len))
|
|
BAIL(PHYSFS_ERR_INVALID_ARGUMENT, -1);
|
|
|
|
while (len > 0)
|
|
{
|
|
const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
|
|
DWORD numWritten = 0;
|
|
if (!WriteFile(h, buffer, thislen, &numWritten, NULL))
|
|
BAIL(errcodeFromWinApi(), -1);
|
|
len -= (PHYSFS_uint64) numWritten;
|
|
totalWritten += (PHYSFS_sint64) numWritten;
|
|
if (numWritten != thislen)
|
|
break;
|
|
} /* while */
|
|
|
|
return totalWritten;
|
|
} /* __PHYSFS_platformWrite */
|
|
|
|
|
|
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
const PHYSFS_sint64 spos = (PHYSFS_sint64) pos;
|
|
BAIL_IF(!winSetFilePointer(h,spos,NULL,FILE_BEGIN), errcodeFromWinApi(), 0);
|
|
return 1; /* No error occured */
|
|
} /* __PHYSFS_platformSeek */
|
|
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
PHYSFS_sint64 pos = 0;
|
|
BAIL_IF(!winSetFilePointer(h,0,&pos,FILE_CURRENT), errcodeFromWinApi(), -1);
|
|
return pos;
|
|
} /* __PHYSFS_platformTell */
|
|
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
const PHYSFS_sint64 retval = winGetFileSize(h);
|
|
BAIL_IF(retval < 0, errcodeFromWinApi(), -1);
|
|
return retval;
|
|
} /* __PHYSFS_platformFileLength */
|
|
|
|
|
|
int __PHYSFS_platformFlush(void *opaque)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
BAIL_IF(!FlushFileBuffers(h), errcodeFromWinApi(), 0);
|
|
return 1;
|
|
} /* __PHYSFS_platformFlush */
|
|
|
|
|
|
void __PHYSFS_platformClose(void *opaque)
|
|
{
|
|
HANDLE h = (HANDLE) opaque;
|
|
(void) CloseHandle(h); /* ignore errors. You should have flushed! */
|
|
} /* __PHYSFS_platformClose */
|
|
|
|
|
|
static int doPlatformDelete(LPWSTR wpath)
|
|
{
|
|
WIN32_FILE_ATTRIBUTE_DATA info;
|
|
if (!GetFileAttributesExW(wpath, GetFileExInfoStandard, &info))
|
|
BAIL(errcodeFromWinApi(), 0);
|
|
else
|
|
{
|
|
const int isdir = (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
|
|
const BOOL rc = isdir ? RemoveDirectoryW(wpath) : DeleteFileW(wpath);
|
|
BAIL_IF(!rc, errcodeFromWinApi(), 0);
|
|
} /* else */
|
|
return 1; /* if you made it here, it worked. */
|
|
} /* doPlatformDelete */
|
|
|
|
|
|
int __PHYSFS_platformDelete(const char *path)
|
|
{
|
|
int retval = 0;
|
|
LPWSTR wpath = NULL;
|
|
UTF8_TO_UNICODE_STACK(wpath, path);
|
|
BAIL_IF(!wpath, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
retval = doPlatformDelete(wpath);
|
|
__PHYSFS_smallFree(wpath);
|
|
return retval;
|
|
} /* __PHYSFS_platformDelete */
|
|
|
|
|
|
void *__PHYSFS_platformCreateMutex(void)
|
|
{
|
|
LPCRITICAL_SECTION lpcs;
|
|
lpcs = (LPCRITICAL_SECTION) allocator.Malloc(sizeof (CRITICAL_SECTION));
|
|
BAIL_IF(!lpcs, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
|
|
if (!winInitializeCriticalSection(lpcs))
|
|
{
|
|
allocator.Free(lpcs);
|
|
BAIL(errcodeFromWinApi(), NULL);
|
|
} /* if */
|
|
|
|
return lpcs;
|
|
} /* __PHYSFS_platformCreateMutex */
|
|
|
|
|
|
void __PHYSFS_platformDestroyMutex(void *mutex)
|
|
{
|
|
DeleteCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
allocator.Free(mutex);
|
|
} /* __PHYSFS_platformDestroyMutex */
|
|
|
|
|
|
int __PHYSFS_platformGrabMutex(void *mutex)
|
|
{
|
|
EnterCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
return 1;
|
|
} /* __PHYSFS_platformGrabMutex */
|
|
|
|
|
|
void __PHYSFS_platformReleaseMutex(void *mutex)
|
|
{
|
|
LeaveCriticalSection((LPCRITICAL_SECTION) mutex);
|
|
} /* __PHYSFS_platformReleaseMutex */
|
|
|
|
|
|
static PHYSFS_sint64 FileTimeToPhysfsTime(const FILETIME *ft)
|
|
{
|
|
SYSTEMTIME st_utc;
|
|
SYSTEMTIME st_localtz;
|
|
TIME_ZONE_INFORMATION tzi;
|
|
DWORD tzid;
|
|
PHYSFS_sint64 retval;
|
|
struct tm tm;
|
|
BOOL rc;
|
|
|
|
BAIL_IF(!FileTimeToSystemTime(ft, &st_utc), errcodeFromWinApi(), -1);
|
|
tzid = GetTimeZoneInformation(&tzi);
|
|
BAIL_IF(tzid == TIME_ZONE_ID_INVALID, errcodeFromWinApi(), -1);
|
|
rc = SystemTimeToTzSpecificLocalTime(&tzi, &st_utc, &st_localtz);
|
|
BAIL_IF(!rc, errcodeFromWinApi(), -1);
|
|
|
|
/* Convert to a format that mktime() can grok... */
|
|
tm.tm_sec = st_localtz.wSecond;
|
|
tm.tm_min = st_localtz.wMinute;
|
|
tm.tm_hour = st_localtz.wHour;
|
|
tm.tm_mday = st_localtz.wDay;
|
|
tm.tm_mon = st_localtz.wMonth - 1;
|
|
tm.tm_year = st_localtz.wYear - 1900;
|
|
tm.tm_wday = -1 /*st_localtz.wDayOfWeek*/;
|
|
tm.tm_yday = -1;
|
|
tm.tm_isdst = -1;
|
|
|
|
/* Convert to a format PhysicsFS can grok... */
|
|
retval = (PHYSFS_sint64) mktime(&tm);
|
|
BAIL_IF(retval == -1, PHYSFS_ERR_OS_ERROR, -1);
|
|
return retval;
|
|
} /* FileTimeToPhysfsTime */
|
|
|
|
|
|
/* check for symlinks. These exist in NTFS 3.1 (WinXP), even though
|
|
they aren't really available to userspace before Vista. I wonder
|
|
what would happen if you put an NTFS disk with a symlink on it
|
|
into an XP machine, though; would this flag get set?
|
|
NTFS symlinks are a form of "reparse point" (junction, volume mount,
|
|
etc), so if the REPARSE_POINT attribute is set, check for the symlink
|
|
tag thereafter. This assumes you already read in the file attributes. */
|
|
static int isSymlink(const WCHAR *wpath, const DWORD attr)
|
|
{
|
|
WIN32_FIND_DATAW w32dw;
|
|
HANDLE h;
|
|
|
|
if ((attr & PHYSFS_FILE_ATTRIBUTE_REPARSE_POINT) == 0)
|
|
return 0; /* not a reparse point? Definitely not a symlink. */
|
|
|
|
h = winFindFirstFileW(wpath, &w32dw);
|
|
if (h == INVALID_HANDLE_VALUE)
|
|
return 0; /* ...maybe the file just vanished...? */
|
|
|
|
FindClose(h);
|
|
return (w32dw.dwReserved0 == PHYSFS_IO_REPARSE_TAG_SYMLINK);
|
|
} /* isSymlink */
|
|
|
|
|
|
int __PHYSFS_platformStat(const char *filename, PHYSFS_Stat *st, const int follow)
|
|
{
|
|
WIN32_FILE_ATTRIBUTE_DATA winstat;
|
|
WCHAR *wstr = NULL;
|
|
DWORD err = 0;
|
|
BOOL rc = 0;
|
|
int issymlink = 0;
|
|
|
|
UTF8_TO_UNICODE_STACK(wstr, filename);
|
|
BAIL_IF(!wstr, PHYSFS_ERR_OUT_OF_MEMORY, 0);
|
|
rc = GetFileAttributesExW(wstr, GetFileExInfoStandard, &winstat);
|
|
|
|
if (!rc)
|
|
err = GetLastError();
|
|
else /* check for symlink while wstr is still available */
|
|
issymlink = !follow && isSymlink(wstr, winstat.dwFileAttributes);
|
|
|
|
__PHYSFS_smallFree(wstr);
|
|
BAIL_IF(!rc, errcodeFromWinApiError(err), 0);
|
|
|
|
st->modtime = FileTimeToPhysfsTime(&winstat.ftLastWriteTime);
|
|
st->accesstime = FileTimeToPhysfsTime(&winstat.ftLastAccessTime);
|
|
st->createtime = FileTimeToPhysfsTime(&winstat.ftCreationTime);
|
|
|
|
if (issymlink)
|
|
{
|
|
st->filetype = PHYSFS_FILETYPE_SYMLINK;
|
|
st->filesize = 0;
|
|
} /* if */
|
|
|
|
else if (winstat.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
{
|
|
st->filetype = PHYSFS_FILETYPE_DIRECTORY;
|
|
st->filesize = 0;
|
|
} /* else if */
|
|
|
|
else if (winstat.dwFileAttributes & (FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_DEVICE))
|
|
{
|
|
st->filetype = PHYSFS_FILETYPE_OTHER;
|
|
st->filesize = (((PHYSFS_uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow;
|
|
} /* else if */
|
|
|
|
else
|
|
{
|
|
st->filetype = PHYSFS_FILETYPE_REGULAR;
|
|
st->filesize = (((PHYSFS_uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow;
|
|
} /* else */
|
|
|
|
st->readonly = ((winstat.dwFileAttributes & FILE_ATTRIBUTE_READONLY) != 0);
|
|
|
|
return 1;
|
|
} /* __PHYSFS_platformStat */
|
|
|
|
#endif /* PHYSFS_PLATFORM_WINDOWS */
|
|
|
|
/* end of physfs_platform_windows.c ... */
|
|
|
|
|