X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3ff07edb0bc8969f580d543ee0de674df8325e16..f1f5f16f780bb41aa2ea24ccbf728f14c86cc475:/src/common/filefn.cpp?ds=sidebyside diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp index 6b0c967cca..1d0a96278c 100644 --- a/src/common/filefn.cpp +++ b/src/common/filefn.cpp @@ -24,13 +24,15 @@ #pragma hdrstop #endif +#include "wx/filefn.h" + #ifndef WX_PRECOMP #include "wx/intl.h" #include "wx/log.h" #include "wx/utils.h" #endif -#include "wx/file.h" // This does include filefn.h +#include "wx/file.h" #include "wx/filename.h" #include "wx/dir.h" @@ -115,13 +117,17 @@ const int wxInvalidOffset = -1; // macros // ---------------------------------------------------------------------------- -// we need to translate Mac filenames before passing them to OS functions +// translate the filenames before passing them to OS functions #define OS_FILENAME(s) (s.fn_str()) // ============================================================================ // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// wrappers around standard POSIX functions +// ---------------------------------------------------------------------------- + #ifdef wxNEED_WX_UNISTD_H WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf ) @@ -129,6 +135,11 @@ WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf ) return stat( wxConvFile.cWX2MB( file_name ), buf ); } +WXDLLEXPORT int wxLstat( const wxChar *file_name, wxStructStat *buf ) +{ + return lstat( wxConvFile.cWX2MB( file_name ), buf ); +} + WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode ) { return access( wxConvFile.cWX2MB( pathname ), mode ); @@ -139,14 +150,51 @@ WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode ) return open( wxConvFile.cWX2MB( pathname ), flags, mode ); } +#endif // wxNEED_WX_UNISTD_H + +#if wxUSE_UNICODE && defined __BORLANDC__ \ + && __BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551 + +// BCC 5.5 and 5.5.1 have a bug in _wopen where files are created read only +// regardless of the mode parameter. This hack works around the problem by +// setting the mode with _wchmod. +// +int wxOpen(const wchar_t *pathname, int flags, mode_t mode) +{ + int moreflags = 0; + + // we only want to fix the mode when the file is actually created, so + // when creating first try doing it O_EXCL so we can tell if the file + // was already there. + if ((flags & O_CREAT) && !(flags & O_EXCL) && (mode & wxS_IWUSR) != 0) + moreflags = O_EXCL; + + int fd = _wopen(pathname, flags | moreflags, mode); + + // the file was actually created and needs fixing + if (fd != -1 && (flags & O_CREAT) != 0 && (mode & wxS_IWUSR) != 0) + { + close(fd); + _wchmod(pathname, mode); + fd = _wopen(pathname, flags & ~(O_EXCL | O_CREAT)); + } + // the open failed, but it may have been because the added O_EXCL stopped + // the opening of an existing file, so try again without. + else if (fd == -1 && moreflags != 0) + { + fd = _wopen(pathname, flags & ~O_CREAT); + } + + return fd; +} + #endif - // wxNEED_WX_UNISTD_H // ---------------------------------------------------------------------------- // wxPathList // ---------------------------------------------------------------------------- -void wxPathList::Add(const wxString& path) +bool wxPathList::Add(const wxString& path) { // add a path separator to force wxFileName to interpret it always as a directory // (i.e. if we are called with '/home/user' we want to consider it a folder and @@ -154,11 +202,17 @@ void wxPathList::Add(const wxString& path) wxFileName fn(path + wxFileName::GetPathSeparator()); // add only normalized relative/absolute paths - fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS); + // NB: we won't do wxPATH_NORM_DOTS in order to avoid problems when trying to + // normalize paths which starts with ".." (which can be normalized only if + // we use also wxPATH_NORM_ABSOLUTE - which we don't want to use). + if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS)) + return false; wxString toadd = fn.GetPath(); if (Index(toadd) == wxNOT_FOUND) wxArrayString::Add(toadd); // do not add duplicates + + return true; } void wxPathList::Add(const wxArrayString &arr) @@ -197,21 +251,17 @@ void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable)) // Given a full filename (with path), ensure that that file can // be accessed again USING FILENAME ONLY by adding the path // to the list if not already there. -void wxPathList::EnsureFileAccessible (const wxString& path) +bool wxPathList::EnsureFileAccessible (const wxString& path) { - wxString path_only(wxPathOnly(path)); - if ( !path_only.empty() ) - { - if ( Index(path_only) == wxNOT_FOUND ) - Add(path_only); - } + return Add(wxPathOnly(path)); } -// deprecated ! +#if WXWIN_COMPATIBILITY_2_6 bool wxPathList::Member (const wxString& path) const { return Index(path) != wxNOT_FOUND; } +#endif wxString wxPathList::FindValidPath (const wxString& file) const { @@ -220,8 +270,13 @@ wxString wxPathList::FindValidPath (const wxString& file) const wxFileName fn(file); wxString strend; - // NB: normalize without making absolute ! - fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS); + // NB: normalize without making absolute otherwise calling this function with + // e.g. "b/c.txt" would result in removing the directory 'b' and the for loop + // below would only add to the paths of this list the 'c.txt' part when doing + // the existence checks... + // NB: we don't use wxPATH_NORM_DOTS here, too (see wxPathList::Add for more info) + if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS)) + return wxEmptyString; wxASSERT_MSG(!fn.IsDir(), wxT("Cannot search for directories; only for files")); if (fn.IsAbsolute()) @@ -907,6 +962,8 @@ wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname ) return wxMacCFStringHolder(cfMutableString).AsString() ; } +#ifndef __LP64__ + wxString wxMacFSSpec2MacFilename( const FSSpec *spec ) { FSRef fsRef ; @@ -924,6 +981,7 @@ void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec ) wxMacPathToFSRef( path , &fsRef ) ; err = FSRefMakeFSSpec( &fsRef , spec ) ; } +#endif #endif // __WXMAC__ @@ -1212,7 +1270,7 @@ bool wxRmdir(const wxString& dir, int WXUNUSED(flags)) #elif defined(__OS2__) return (::DosDeleteDir((PSZ)dir.c_str()) == 0); #elif defined(__WXWINCE__) - return (CreateDirectory(dir, NULL) != 0); + return (RemoveDirectory(dir) != 0); #elif defined(__WXPALMOS__) // TODO with VFSFileRename() return false; @@ -1229,7 +1287,7 @@ bool wxDirExists(const wxChar *pszPathName) #if defined(__WINDOWS__) || defined(__OS2__) // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists, // so remove all trailing backslashes from the path - but don't do this for - // the pathes "d:\" (which are different from "d:") nor for just "\" + // the paths "d:\" (which are different from "d:") nor for just "\" while ( wxEndsWithPathSeparator(strPath) ) { size_t len = strPath.length(); @@ -1277,9 +1335,8 @@ bool wxDirExists(const wxChar *pszPathName) // Get a temporary filename, opening and closing the file. wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf) { -#if wxUSE_FILE - wxString filename = wxFileName::CreateTempFileName(prefix); - if ( filename.empty() ) + wxString filename; + if ( !wxGetTempFileName(prefix, filename) ) return NULL; if ( buf ) @@ -1288,19 +1345,20 @@ wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf) buf = MYcopystring(filename); return buf; -#else - wxUnusedVar(prefix); - wxUnusedVar(buf); - // wxFileName::CreateTempFileName needs wxFile class enabled - return NULL; -#endif } bool wxGetTempFileName(const wxString& prefix, wxString& buf) { - buf = wxGetTempFileName(prefix); +#if wxUSE_FILE + buf = wxFileName::CreateTempFileName(prefix); return !buf.empty(); +#else // !wxUSE_FILE + wxUnusedVar(prefix); + wxUnusedVar(buf); + + return false; +#endif // wxUSE_FILE/!wxUSE_FILE } // Get first file name matching given wild card. @@ -1759,48 +1817,46 @@ int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, return filters.GetCount(); } -#if defined( __WINDOWS__ ) -bool wxCheckGenericPermission(const wxString &path, DWORD access) +#if defined(__WINDOWS__) && !(defined(__UNIX__) || defined(__OS2__)) +static bool wxCheckWin32Permission(const wxString& path, DWORD access) { // quoting the MSDN: "To obtain a handle to a directory, call the - // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag" - wxWinVersion ver = wxGetWinVersion(); + // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag", but this + // doesn't work under Win9x/ME but then it's not needed there anyhow bool isdir = wxDirExists(path); - if (isdir && (ver == wxWinVersion_95 || ver == wxWinVersion_98 || ver == wxWinVersion_ME)) + if ( isdir && wxGetOsVersion() == wxOS_WINDOWS_9X ) { - // however Win95/98/ME do not support FILE_FLAG_BACKUP_SEMANTICS... - if (access == GENERIC_READ) - { - WIN32_FILE_ATTRIBUTE_DATA data; - if (GetFileAttributesEx(path.c_str(), GetFileExInfoStandard, &data) == 0) - return false; // cannot query attributes - return (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) == 0; - } - - // FIXME: is it true that directories are always writable & executable on Win9X family ? + // FAT directories always allow all access, even if they have the + // readonly flag set return true; } - else - { - HANDLE h = CreateFile(path.c_str(), access, - FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, - OPEN_EXISTING, isdir ? FILE_FLAG_BACKUP_SEMANTICS : 0, NULL); - if (h != INVALID_HANDLE_VALUE) - CloseHandle(h); - return h != INVALID_HANDLE_VALUE; - } + HANDLE h = ::CreateFile + ( + path.c_str(), + access, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + NULL, + OPEN_EXISTING, + isdir ? FILE_FLAG_BACKUP_SEMANTICS : 0, + NULL + ); + if ( h != INVALID_HANDLE_VALUE ) + CloseHandle(h); + + return h != INVALID_HANDLE_VALUE; } -#endif +#endif // __WINDOWS__ bool wxIsWritable(const wxString &path) { -#if defined( __UNIX__ ) +#if defined( __UNIX__ ) || defined(__OS2__) // access() will take in count also symbolic links return access(wxConvFile.cWX2MB(path), W_OK) == 0; #elif defined( __WINDOWS__ ) - return wxCheckGenericPermission(path, GENERIC_WRITE); + return wxCheckWin32Permission(path, GENERIC_WRITE); #else + wxUnusedVar(path); // TODO return false; #endif @@ -1808,12 +1864,13 @@ bool wxIsWritable(const wxString &path) bool wxIsReadable(const wxString &path) { -#if defined( __UNIX__ ) +#if defined( __UNIX__ ) || defined(__OS2__) // access() will take in count also symbolic links return access(wxConvFile.cWX2MB(path), R_OK) == 0; #elif defined( __WINDOWS__ ) - return wxCheckGenericPermission(path, GENERIC_READ); + return wxCheckWin32Permission(path, GENERIC_READ); #else + wxUnusedVar(path); // TODO return false; #endif @@ -1821,17 +1878,91 @@ bool wxIsReadable(const wxString &path) bool wxIsExecutable(const wxString &path) { -#if defined( __UNIX__ ) +#if defined( __UNIX__ ) || defined(__OS2__) // access() will take in count also symbolic links return access(wxConvFile.cWX2MB(path), X_OK) == 0; #elif defined( __WINDOWS__ ) - return wxCheckGenericPermission(path, GENERIC_EXECUTE); + return wxCheckWin32Permission(path, GENERIC_EXECUTE); #else + wxUnusedVar(path); // TODO return false; #endif } +// Return the type of an open file +// +// Some file types on some platforms seem seekable but in fact are not. +// The main use of this function is to allow such cases to be detected +// (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK). +// +// This is important for the archive streams, which benefit greatly from +// being able to seek on a stream, but which will produce corrupt archives +// if they unknowingly seek on a non-seekable stream. +// +// wxFILE_KIND_DISK is a good catch all return value, since other values +// disable features of the archive streams. Some other value must be returned +// for a file type that appears seekable but isn't. +// +// Known examples: +// * Pipes on Windows +// * Files on VMS with a record format other than StreamLF +// +wxFileKind wxGetFileKind(int fd) +{ +#if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle + switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE) + { + case FILE_TYPE_CHAR: + return wxFILE_KIND_TERMINAL; + case FILE_TYPE_DISK: + return wxFILE_KIND_DISK; + case FILE_TYPE_PIPE: + return wxFILE_KIND_PIPE; + } + + return wxFILE_KIND_UNKNOWN; + +#elif defined(__UNIX__) + if (isatty(fd)) + return wxFILE_KIND_TERMINAL; + + struct stat st; + fstat(fd, &st); + + if (S_ISFIFO(st.st_mode)) + return wxFILE_KIND_PIPE; + if (!S_ISREG(st.st_mode)) + return wxFILE_KIND_UNKNOWN; + + #if defined(__VMS__) + if (st.st_fab_rfm != FAB$C_STMLF) + return wxFILE_KIND_UNKNOWN; + #endif + + return wxFILE_KIND_DISK; + +#else + #define wxFILEKIND_STUB + (void)fd; + return wxFILE_KIND_DISK; +#endif +} + +wxFileKind wxGetFileKind(FILE *fp) +{ + // Note: The watcom rtl dll doesn't have fileno (the static lib does). + // Should be fixed in version 1.4. +#if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4) + (void)fp; + return wxFILE_KIND_DISK; +#elif defined(__WINDOWS__) && !defined(__CYGWIN__) && !defined(__WATCOMC__) && !defined(__WINE__) + return fp ? wxGetFileKind(_fileno(fp)) : wxFILE_KIND_UNKNOWN; +#else + return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN; +#endif +} + //------------------------------------------------------------------------ // wild character routines @@ -1964,77 +2095,6 @@ bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special ) } } -// Return the type of an open file -// -// Some file types on some platforms seem seekable but in fact are not. -// The main use of this function is to allow such cases to be detected -// (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK). -// -// This is important for the archive streams, which benefit greatly from -// being able to seek on a stream, but which will produce corrupt archives -// if they unknowingly seek on a non-seekable stream. -// -// wxFILE_KIND_DISK is a good catch all return value, since other values -// disable features of the archive streams. Some other value must be returned -// for a file type that appears seekable but isn't. -// -// Known examples: -// * Pipes on Windows -// * Files on VMS with a record format other than StreamLF -// -wxFileKind wxGetFileKind(int fd) -{ -#if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle - switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE) - { - case FILE_TYPE_CHAR: - return wxFILE_KIND_TERMINAL; - case FILE_TYPE_DISK: - return wxFILE_KIND_DISK; - case FILE_TYPE_PIPE: - return wxFILE_KIND_PIPE; - } - - return wxFILE_KIND_UNKNOWN; - -#elif defined(__UNIX__) - if (isatty(fd)) - return wxFILE_KIND_TERMINAL; - - struct stat st; - fstat(fd, &st); - - if (S_ISFIFO(st.st_mode)) - return wxFILE_KIND_PIPE; - if (!S_ISREG(st.st_mode)) - return wxFILE_KIND_UNKNOWN; - - #if defined(__VMS__) - if (st.st_fab_rfm != FAB$C_STMLF) - return wxFILE_KIND_UNKNOWN; - #endif - - return wxFILE_KIND_DISK; - -#else - #define wxFILEKIND_STUB - (void)fd; - return wxFILE_KIND_DISK; -#endif -} - -wxFileKind wxGetFileKind(FILE *fp) -{ - // Note: The watcom rtl dll doesn't have fileno (the static lib does). - // Should be fixed in version 1.4. -#if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4) - (void)fp; - return wxFILE_KIND_DISK; -#else - return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN; -#endif -} - #ifdef __VISUALC__ #pragma warning(default:4706) // assignment within conditional expression #endif // VC++