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winamp/Src/Wasabi/bfc/std_file.cpp

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2024-09-24 12:54:57 +00:00
#include "precomp_wasabi_bfc.h"
#include "std_file.h"
#include <bfc/file/readdir.h>
#include <bfc/platform/strcmp.h>
#ifdef WIN32
#include <shellapi.h> // for ShellExecute
#endif
#ifdef __APPLE__
#include <unistd.h>
#endif
#define TMPNAME_PREFIX L"WTF"
#ifndef _NOSTUDIO
#include <bfc/parse/pathparse.h>
#undef fopen
#undef fclose
#undef fseek
#undef ftell
#undef fread
#undef fwrite
#undef fgets
#undef fprintf
#undef unlink
#undef access
#ifdef WASABI_COMPILE_FILEREADER
static PtrList<void> fileReaders;
OSFILETYPE FileReaderOpen(const wchar_t *filename, OSFNCSTR mode)
{
OSFILETYPE ret = NULL;
const wchar_t *rFilename = filename;
wchar_t str[WA_MAX_PATH] = L"";
if (wcsstr(filename, L".."))
{
PathParserW pp(filename);
for (int i = 0;i < pp.getNumStrings();i++)
{
if (!wcscmp(pp.enumString(i), L".."))
{
PathParserW pp2(str);
if (pp2.getNumStrings() <= 0)
return NULL;
ASSERTPR(pp2.getNumStrings() > 0, "we don't handle this right, and I'm not sure how to fix it because I'm not sure what the code should do with a leading .. --BU");
int l = (int)wcslen(pp2.enumString(pp2.getNumStrings() - 1));
str[wcslen(str) - l - 1] = 0;
continue;
}
if (!wcscmp(pp.enumString(i), L"."))
continue;
wcscat(str, pp.enumString(i));
wcscat(str, L"/");
}
str[wcslen(str) - 1] = 0;
rFilename = str;
}
if (WASABI_API_FILE && (ret = (OSFILETYPE )WASABI_API_FILE->fileOpen(rFilename, mode)))
{
fileReaders.addItem((void *)ret);
return ret;
}
return 0;
}
#endif
static DWORD mode_to_access(const wchar_t *mode)
{
DWORD access_flags=0;
if (mode)
{
if (mode[0]=='r')
access_flags|=GENERIC_READ;
if (mode[0]=='w' || mode[0] == 'a')
{
access_flags|=GENERIC_WRITE;
if (mode[1] == '+')
access_flags|=GENERIC_READ;
}
}
return access_flags;
}
static DWORD mode_to_create(const wchar_t *mode)
{
if (mode[0]=='r')
return OPEN_EXISTING;
if (mode[0] == 'w')
return CREATE_ALWAYS;
if (mode[0] == 'a')
return OPEN_ALWAYS;
return OPEN_ALWAYS;
}
OSFILETYPE WFOPEN(const wchar_t *filename, OSFNCSTR mode, bool useFileReaders)
{
if (!filename || !*filename)
return OPEN_FAILED;
if (!mode)
mode = WF_WRITE_BINARY;
OSFILETYPE ret = OPEN_FAILED;
if (!WCSNICMP(filename, L"file:", 5))
filename += 5;
#ifdef _WIN32
ret = CreateFileW(filename, mode_to_access(mode), FILE_SHARE_READ, 0, mode_to_create(mode), FILE_FLAG_SEQUENTIAL_SCAN, 0);
if (ret != OPEN_FAILED && mode[0]=='a')
SetFilePointer(ret, 0, 0, FILE_END);
#elif defined(__APPLE__)
// this is kind of slow, but hopefully this function isn't called enough for a major performance impact
// maybe it'd be faster if we did -fshort-wchar and used CFStringCreateWithCharactersNoCopy
CFStringRef cfstr = CFStringCreateWithBytes(kCFAllocatorDefault, (UInt8 *)filename, wcslen(filename)*sizeof(wchar_t), kCFStringEncodingUTF32, false);
if (cfstr)
{
size_t len = CFStringGetMaximumSizeOfFileSystemRepresentation(cfstr);
if (len)
{
char *tmpfn = alloca(len);
if (tmpfn)
{
if (CFStringGetFileSystemRepresentation(cfstr, tmpfn, len))
ret = fopen(tmpfn, mode);
}
}
CFRelease(cfstr);
}
#else
#error port me
#endif
if (ret != OPEN_FAILED)
return ret;
// File not found... try to open it with the file readers
// but before that, resolve ".." in path so zip can find it
#ifdef WASABI_COMPILE_FILEREADER
if (useFileReaders)
{
if (ret = FileReaderOpen(filename, mode))
return ret;
else
return OPEN_FAILED;
}
#endif
// File still not found ...
return OPEN_FAILED;
}
int FCLOSE(OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
{
fileReaders.removeItem((void *)stream);
WASABI_API_FILE->fileClose((void *)stream);
return 0;
}
#endif
return !CloseHandle(stream);
}
static __int64 Seek64(HANDLE hf, __int64 distance, DWORD MoveMethod)
{
LARGE_INTEGER li;
li.QuadPart = distance;
li.LowPart = SetFilePointer (hf, li.LowPart, &li.HighPart, MoveMethod);
if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR)
{
li.QuadPart = -1;
}
return li.QuadPart;
}
int FSEEK(OSFILETYPE stream, long offset, int origin)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
return WASABI_API_FILE->fileSeek(offset, origin, (void *)stream);
#endif
return (int)Seek64(stream, offset, origin);
}
uint64_t FTELL(OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
return WASABI_API_FILE->fileTell((void *)stream);
#endif
return Seek64(stream, 0, FILE_CURRENT);
}
size_t FREAD(void *buffer, size_t size, size_t count, OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
return WASABI_API_FILE->fileRead(buffer, size*count, (void *)stream);
#endif
DWORD bytesRead=0;
ReadFile(stream, buffer, (DWORD)(size*count), &bytesRead, NULL);
return bytesRead;
}
size_t FWRITE(const void *buffer, size_t size, size_t count, OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
return WASABI_API_FILE->fileWrite(buffer, (int)(size*count), (void *)stream);
#endif
DWORD bytesWritten=0;
WriteFile(stream, buffer, (DWORD)(size*count), &bytesWritten, NULL);
return bytesWritten;
}
uint64_t FGETSIZE(OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
return WASABI_API_FILE->fileGetFileSize((void *)stream);
#endif
LARGE_INTEGER position;
position.QuadPart=0;
position.LowPart = GetFileSize(stream, (LPDWORD)&position.HighPart);
if (position.LowPart == INVALID_FILE_SIZE && GetLastError() != NO_ERROR)
return INVALID_FILE_SIZE;
else
return position.QuadPart;
}
/*
char *FGETS(char *string, int n, OSFILETYPE stream)
{
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
{
char c;
char *p = string;
for (int i = 0;i < (n - 1);i++)
{
if (!WASABI_API_FILE->fileRead(&c, 1, stream))
{
if (!i) return NULL;
break;
}
if (c == 0x0d) continue;
if (c == 0x0a) break;
*p++ = c;
}
*p = 0;
return string;
}
#endif
return fgets(string, n, stream);
}
*/
/*
int FPRINTF(OSFILETYPE stream, const char *format , ...)
{
int ret;
va_list args;
va_start (args, format);
#ifdef WASABI_COMPILE_FILEREADER
if (fileReaders.searchItem((void *)stream) != -1)
{
String p;
ret = p.vsprintf(format, args);
FWRITE(p.v(), p.len(), 1, stream);
}
else
#endif
ret = vfprintf(stream, format, args); //real stdio
va_end (args);
return ret;
}*/
OSFNCSTR TMPNAM2(OSFNSTR str, int val)
{
#ifdef WIN32
wchar_t tempPath[MAX_PATH-14] = {0};
static wchar_t tempName[MAX_PATH];
GetTempPathW(MAX_PATH-14, tempPath);
GetTempFileNameW(tempPath, TMPNAME_PREFIX, val, tempName);
if (str)
{
wcsncpy(str, tempName, MAX_PATH);
return str;
}
else
{
return tempName;
}
#elif defined(LINUX) || defined(__APPLE__)
mkstemp(StringPrintf("%sXXXXXX", str).getNonConstVal());
return (const char *)str;
#endif
}
OSFNCSTR TMPNAM(OSFNSTR string)
{
return TMPNAM2(string, 0);
}
int UNLINK(OSFNCSTR filename)
{
#ifdef WASABI_COMPILE_FILEREADER
return FDELETE(filename);
#elif defined(_WIN32)
return _wunlink(filename);
#else
return unlink(filename); // this has been undefed at the top of this file
#endif
}
int ACCESS(const char *filename, int mode)
{
#ifdef WIN32
return _access(filename, mode);
#else
return access(filename, mode); // this has been undefed at the top of this file
#endif
}
int WACCESS(OSFNCSTR filename, int mode)
{
#ifdef WIN32
return _waccess(filename, mode);
#elif defined(__APPLE__)
return access(filename, mode); // this has been undefed at the top of this file
#endif
}
int FDELETE(const wchar_t *filename, int permanently)
{
#ifdef WASABI_COMPILE_FILEREADER
if (permanently)
return WASABI_API_FILE->fileRemove(filename);
else
return WASABI_API_FILE->fileRemoveUndoable(filename);
#else
return UNLINK(filename);
#endif
}
int MOVEFILE(const wchar_t * filename, const wchar_t *destfilename)
{
#ifdef WASABI_COMPILE_FILEREADER
return WASABI_API_FILE->fileMove(filename, destfilename);
#elif defined(_WIN32)
return MoveFileW(filename, destfilename);
#else
return rename(filename, destfilename);
#endif
}
#ifdef WIN32
#include <shlobj.h>
#include <shellapi.h>
static HRESULT ResolveShortCut(LPCWSTR pszShortcutFile, LPWSTR pszPath, int maxbuf)
{
HRESULT hres;
IShellLinkW* psl;
wchar_t szGotPath[MAX_PATH] = {0};
WIN32_FIND_DATAW wfd;
*pszPath = 0; // assume failure
hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
IID_IShellLinkW, (void **) & psl);
if (SUCCEEDED(hres))
{
IPersistFile* ppf;
hres = psl->QueryInterface(IID_IPersistFile, (void **) & ppf); // OLE 2! Yay! --YO
if (SUCCEEDED(hres))
{
hres = ppf->Load(pszShortcutFile, STGM_READ);
if (SUCCEEDED(hres))
{
hres = psl->Resolve(HWND_DESKTOP, SLR_ANY_MATCH);
if (SUCCEEDED(hres))
{
wcsncpy(szGotPath, pszShortcutFile, MAX_PATH);
hres = psl->GetPath(szGotPath, MAX_PATH, (WIN32_FIND_DATAW *) & wfd,
SLGP_SHORTPATH );
wcsncpy(pszPath, szGotPath, maxbuf);
if (maxbuf) pszPath[maxbuf] = 0;
}
}
ppf->Release();
}
psl->Release();
}
return SUCCEEDED(hres);
}
#endif
// ommitting a maxbuf param was just asking for trouble...
int StdFile::resolveShortcut(OSFNCSTR filename, OSFNSTR destfilename, int maxbuf)
{
#ifdef WIN32
return ResolveShortCut(filename, destfilename, maxbuf);
#elif defined(LINUX) || defined(__APPLE__)
return readlink(filename, destfilename, maxbuf);
#else
#error port me
#endif
}
#endif // ndef _NOSTUDIO