X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fac3b4232c5a2fa84f11897f4851d0a0e8a17755..14f8fa9d7fa07b02c276981d135ce73cf6818879:/src/common/file.cpp?ds=sidebyside diff --git a/src/common/file.cpp b/src/common/file.cpp index b662a72b34..d5a136e704 100644 --- a/src/common/file.cpp +++ b/src/common/file.cpp @@ -54,12 +54,21 @@ #define NOMCX #endif - #include // for GetTempFileName #elif (defined(__UNIX__) || defined(__GNUWIN32__)) #include #ifdef __GNUWIN32__ #include #endif +#elif defined(__DOS__) + #if defined(__WATCOMC__) + #include + #elif defined(__DJGPP__) + #include + #include + #include + #else + #error "Please specify the header with file functions declarations." + #endif #elif (defined(__WXPM__)) #include #define W_OK 2 @@ -88,6 +97,9 @@ #ifndef __MWERKS__ #include // needed for stat #include // stat +#elif ( defined(__MWERKS__) && defined(__WXMSW__) ) + #include // needed for stat + #include // stat #endif #if defined(__BORLANDC__) || defined(_MSC_VER) @@ -118,10 +130,18 @@ #endif // Salford C // wxWindows -#include "wx/string.h" -#include "wx/intl.h" +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/log.h" +#endif // !WX_PRECOMP + +#include "wx/filename.h" #include "wx/file.h" -#include "wx/log.h" + +#ifdef __WXMSW__ + #include "wx/msw/mslu.h" +#endif // ============================================================================ // implementation of wxFile @@ -133,18 +153,9 @@ bool wxFile::Exists(const wxChar *name) { wxStructStat st; -#if wxUSE_UNICODE && wxMBFILES - wxCharBuffer fname = wxConvFile.cWC2MB(name); - - return !wxAccess(fname, 0) && - !wxStat(wxMBSTRINGCAST fname, &st) && - (st.st_mode & S_IFREG); - -#else return !wxAccess(name, 0) && !wxStat(name, &st) && (st.st_mode & S_IFREG); -#endif } bool wxFile::Access(const wxChar *name, OpenMode mode) @@ -164,7 +175,7 @@ bool wxFile::Access(const wxChar *name, OpenMode mode) wxFAIL_MSG(wxT("bad wxFile::Access mode parameter.")); } - return wxAccess(wxFNCONV(name), how) == 0; + return wxAccess( name, how) == 0; } // ---------------------------------------------------------------------------- @@ -186,20 +197,22 @@ bool wxFile::Create(const wxChar *szFileName, bool bOverwrite, int accessMode) // if bOverwrite we create a new file or truncate the existing one, // otherwise we only create the new file and fail if it already exists #if defined(__WXMAC__) && !defined(__UNIX__) - // Dominic Mazzoni [dmazzoni+@cs.cmu.edu] reports that open is still broken on the mac, so we replace - // int fd = open(wxUnix2MacFilename( szFileName ), O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access); - int fd = creat( szFileName , accessMode); + // Dominic Mazzoni [dmazzoni+@cs.cmu.edu] reports that open is still broken on the mac, so we replace + // int fd = open(wxUnix2MacFilename( szFileName ), O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access); + int fd = creat( szFileName , accessMode); #else - int fd = wxOpen(wxFNCONV(szFileName), - O_BINARY | O_WRONLY | O_CREAT | - (bOverwrite ? O_TRUNC : O_EXCL) - ACCESS(accessMode)); + int fd = wxOpen( szFileName, + O_BINARY | O_WRONLY | O_CREAT | + (bOverwrite ? O_TRUNC : O_EXCL) + ACCESS(accessMode) ); #endif - if ( fd == -1 ) { + if ( fd == -1 ) + { wxLogSysError(_("can't create file '%s'"), szFileName); return FALSE; } - else { + else + { Attach(fd); return TRUE; } @@ -210,7 +223,8 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode) { int flags = O_BINARY; - switch ( mode ) { + switch ( mode ) + { case read: flags |= O_RDONLY; break; @@ -228,13 +242,18 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode) flags |= O_WRONLY | O_CREAT | O_TRUNC; break; + case write_excl: + flags |= O_WRONLY | O_CREAT | O_EXCL; + break; + case read_write: flags |= O_RDWR; break; } - int fd = wxOpen(wxFNCONV(szFileName), flags ACCESS(accessMode)); - if ( fd == -1 ) { + int fd = wxOpen( szFileName, flags ACCESS(accessMode)); + if ( fd == -1 ) + { wxLogSysError(_("can't open file '%s'"), szFileName); return FALSE; } @@ -412,7 +431,7 @@ bool wxFile::Eof() const int iRc; -#if defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__) +#if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__) // @@ this doesn't work, of course, on unseekable file descriptors off_t ofsCur = Tell(), ofsMax = Length(); @@ -449,6 +468,7 @@ bool wxFile::Eof() const // ---------------------------------------------------------------------------- // construction // ---------------------------------------------------------------------------- + wxTempFile::wxTempFile(const wxString& strName) { Open(strName); @@ -456,78 +476,54 @@ wxTempFile::wxTempFile(const wxString& strName) bool wxTempFile::Open(const wxString& strName) { - m_strName = strName; - - // we want to create the file in the same directory as strName because - // otherwise rename() in Commit() might not work (if the files are on - // different partitions for example). Unfortunately, the only standard - // (POSIX) temp file creation function tmpnam() can't do it. -#if defined(__UNIX__) || defined(__WXSTUBS__)|| defined( __WXMAC__ ) - static const wxChar *szMktempSuffix = wxT("XXXXXX"); - m_strTemp << strName << szMktempSuffix; - // can use the cast because length doesn't change - mktemp(wxMBSTRINGCAST m_strTemp.mb_str()); -#elif defined(__WXPM__) - // for now just create a file - // future enhancements can be to set some extended attributes for file systems - // OS/2 supports that have them (HPFS, FAT32) and security (HPFS386) - static const wxChar *szMktempSuffix = wxT("XXX"); - m_strTemp << strName << szMktempSuffix; - ::DosCreateDir(m_strTemp.GetWriteBuf(MAX_PATH), NULL); -#else // Windows - wxString strPath; - wxSplitPath(strName, &strPath, NULL, NULL); - if ( strPath.IsEmpty() ) - strPath = wxT('.'); // GetTempFileName will fail if we give it empty string -#ifdef __WIN32__ - if ( !GetTempFileName(strPath, wxT("wx_"),0, m_strTemp.GetWriteBuf(MAX_PATH)) ) -#else - // Not sure why MSVC++ 1.5 header defines first param as BYTE - bug? - if ( !GetTempFileName((BYTE) (DWORD)(const wxChar*) strPath, wxT("wx_"),0, m_strTemp.GetWriteBuf(MAX_PATH)) ) -#endif - wxLogLastError(wxT("GetTempFileName")); - m_strTemp.UngetWriteBuf(); -#endif // Windows/Unix + // we must have an absolute filename because otherwise CreateTempFileName() + // would create the temp file in $TMP (i.e. the system standard location + // for the temp files) which might be on another volume/drive/mount and + // wxRename()ing it later to m_strName from Commit() would then fail + // + // with the absolute filename, the temp file is created in the same + // directory as this one which ensures that wxRename() may work later + wxFileName fn(strName); + if ( !fn.IsAbsolute() ) + { + fn.Normalize(wxPATH_NORM_ABSOLUTE); + } - int access = wxS_DEFAULT; -#ifdef __UNIX__ - // create the file with the same mode as the original one under Unix - mode_t umaskOld = 0; // just to suppress compiler warning - bool changedUmask; + m_strName = fn.GetFullPath(); + + m_strTemp = wxFileName::CreateTempFileName(m_strName, &m_file); + + if ( m_strTemp.empty() ) + { + // CreateTempFileName() failed + return FALSE; + } +#ifdef __UNIX__ + // the temp file should have the same permissions as the original one + mode_t mode; + wxStructStat st; - if ( stat(strName.fn_str(), &st) == 0 ) + if ( stat( (const char*) m_strName.fn_str(), &st) == 0 ) { - // this assumes that only lower bits of st_mode contain the access - // rights, but it's true for at least all Unices which have S_IXXXX() - // macros, so should not be less portable than using (not POSIX) - // S_IFREG &c - access = st.st_mode & 0777; - - // we want to create the file with exactly the same access rights as - // the original one, so disable the user's umask for the moment - umaskOld = umask(0); - changedUmask = TRUE; + mode = st.st_mode; } else { - // file probably didn't exist, just create with default mode _using_ - // user's umask (new files creation should respet umask) - changedUmask = FALSE; + // file probably didn't exist, just give it the default mode _using_ + // user's umask (new files creation should respect umask) + mode_t mask = umask(0777); + mode = 0666 & ~mask; + umask(mask); } -#endif // Unix - bool ok = m_file.Open(m_strTemp, wxFile::write, access); - -#ifdef __UNIX__ - if ( changedUmask ) + if ( chmod( (const char*) m_strTemp.fn_str(), mode) == -1 ) { - // restore umask now that the file is created - (void)umask(umaskOld); + wxLogSysError(_("Failed to set temporary file permissions")); } #endif // Unix - return ok; + return TRUE; } // ---------------------------------------------------------------------------- @@ -564,5 +560,5 @@ void wxTempFile::Discard() wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str()); } -#endif +#endif // wxUSE_FILE