fixed MSLU check

[wxWidgets.git] / src / common / file.cpp

diff --git a/src/common/file.cpp b/src/common/file.cpp
index 243bdc03733699d5a36863b2efa3c997f7a9b191..af237f6a89f3a2d3167d91e4d3896dcdff52b226 100644 (file)
--- a/src/common/file.cpp
+++ b/src/common/file.cpp
@@ -28,7 +28,7 @@
 #if wxUSE_FILE
 
 // standard
 #if wxUSE_FILE
 
 // standard

-#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXWINE__)
+#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__WXMICROWIN__)

   #include  <io.h>
 
 #ifndef __SALFORDC__
   #include  <io.h>
 
 #ifndef __SALFORDC__


@@ -54,12 +54,21 @@
     #define   NOMCX
 #endif
 
     #define   NOMCX
 #endif
 

-    #include  <windows.h>     // for GetTempFileName

 #elif (defined(__UNIX__) || defined(__GNUWIN32__))
     #include  <unistd.h>
     #ifdef __GNUWIN32__
         #include <windows.h>
     #endif
 #elif (defined(__UNIX__) || defined(__GNUWIN32__))
     #include  <unistd.h>
     #ifdef __GNUWIN32__
         #include <windows.h>
     #endif

+#elif defined(__DOS__)
+    #if defined(__WATCOMC__)
+       #include <io.h>
+    #elif defined(__DJGPP__)
+       #include <io.h>
+       #include <unistd.h>
+       #include <stdio.h>
+    #else
+        #error  "Please specify the header with file functions declarations."
+    #endif

 #elif (defined(__WXPM__))
     #include <io.h>
     #define   W_OK        2
 #elif (defined(__WXPM__))
     #include <io.h>
     #define   W_OK        2


@@ -88,6 +97,9 @@
 #ifndef __MWERKS__
     #include  <sys/types.h>   // needed for stat
     #include  <sys/stat.h>    // stat
 #ifndef __MWERKS__
     #include  <sys/types.h>   // needed for stat
     #include  <sys/stat.h>    // stat

+#elif ( defined(__MWERKS__) && defined(__WXMSW__) )
+    #include  <sys/types.h>   // needed for stat
+    #include  <sys/stat.h>    // stat

 #endif
 
 #if defined(__BORLANDC__) || defined(_MSC_VER)
 #endif
 
 #if defined(__BORLANDC__) || defined(_MSC_VER)


@@ -118,10 +130,18 @@
 #endif // Salford C
 
 // wxWindows
 #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/file.h"

-#include  "wx/log.h"
+
+#ifdef __WXMSW__
+    #include "wx/msw/mslu.h"
+#endif

 
 // ============================================================================
 // implementation of wxFile
 
 // ============================================================================
 // implementation of wxFile


@@ -136,22 +156,15 @@ bool wxFile::Exists(const wxChar *name)
 #if wxUSE_UNICODE && wxMBFILES
     wxCharBuffer fname = wxConvFile.cWC2MB(name);
 
 #if wxUSE_UNICODE && wxMBFILES
     wxCharBuffer fname = wxConvFile.cWC2MB(name);
 

-#if defined(__WXMAC__) && !defined(__UNIX__)
-  return !access(wxUnix2MacFilename( name ) , 0) && !stat(wxUnix2MacFilename( name ), &st) && (st.st_mode & S_IFREG);
-#else

     return !wxAccess(fname, 0) &&
            !wxStat(wxMBSTRINGCAST fname, &st) &&
            (st.st_mode & S_IFREG);
     return !wxAccess(fname, 0) &&
            !wxStat(wxMBSTRINGCAST fname, &st) &&
            (st.st_mode & S_IFREG);

-#endif
-#else
-#if defined(__WXMAC__) && !defined(__UNIX__)
-  return !access(wxUnix2MacFilename( name ) , 0) && !stat(wxUnix2MacFilename( name ), &st) && (st.st_mode & S_IFREG);
+

 #else
     return !wxAccess(name, 0) &&
            !wxStat(name, &st) &&
            (st.st_mode & S_IFREG);
 #endif
 #else
     return !wxAccess(name, 0) &&
            !wxStat(name, &st) &&
            (st.st_mode & S_IFREG);
 #endif

-#endif

 }
 
 bool wxFile::Access(const wxChar *name, OpenMode mode)
 }
 
 bool wxFile::Access(const wxChar *name, OpenMode mode)


@@ -195,7 +208,7 @@ bool wxFile::Create(const wxChar *szFileName, bool bOverwrite, int accessMode)
 #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);
 #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(wxUnix2MacFilename( szFileName ), accessMode);
+  int fd = creat( szFileName , accessMode);

 #else
     int fd = wxOpen(wxFNCONV(szFileName),
                     O_BINARY | O_WRONLY | O_CREAT |
 #else
     int fd = wxOpen(wxFNCONV(szFileName),
                     O_BINARY | O_WRONLY | O_CREAT |


@@ -235,16 +248,16 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode)
             flags |= O_WRONLY | O_CREAT | O_TRUNC;
             break;
 
             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;
     }
 
         case read_write:
             flags |= O_RDWR;
             break;
     }
 

-#if defined(__WXMAC__) && !defined(__UNIX__)
-    int fd = open(wxUnix2MacFilename( szFileName ), flags, access);
-#else

     int fd = wxOpen(wxFNCONV(szFileName), flags ACCESS(accessMode));
     int fd = wxOpen(wxFNCONV(szFileName), flags ACCESS(accessMode));

-#endif

     if ( fd == -1 ) {
         wxLogSysError(_("can't open file '%s'"), szFileName);
         return FALSE;
     if ( fd == -1 ) {
         wxLogSysError(_("can't open file '%s'"), szFileName);
         return FALSE;


@@ -423,7 +436,7 @@ bool wxFile::Eof() const
 
     int iRc;
 
 
     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();
     // @@ this doesn't work, of course, on unseekable file descriptors
     off_t ofsCur = Tell(),
     ofsMax = Length();


@@ -460,6 +473,7 @@ bool wxFile::Eof() const
 // ----------------------------------------------------------------------------
 // construction
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // construction
 // ----------------------------------------------------------------------------

+

 wxTempFile::wxTempFile(const wxString& strName)
 {
     Open(strName);
 wxTempFile::wxTempFile(const wxString& strName)
 {
     Open(strName);


@@ -467,78 +481,54 @@ wxTempFile::wxTempFile(const wxString& strName)
 
 bool wxTempFile::Open(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);
+    }
+
+    m_strName = fn.GetFullPath();
+
+    m_strTemp = wxFileName::CreateTempFileName(m_strName, &m_file);
+
+    if ( m_strTemp.empty() )
+    {
+        // CreateTempFileName() failed
+        return FALSE;
+    }

 
 

-    int access = wxS_DEFAULT;

 #ifdef __UNIX__
 #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;
+    // the temp file should have the same permissions as the original one
+    mode_t mode;

 
     wxStructStat st;
 
     wxStructStat st;

-    if ( stat(strName.fn_str(), &st) == 0 )
+    if ( stat(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
     {
     }
     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(m_strTemp.mb_str(), mode) == -1 )

     {
     {

-        // restore umask now that the file is created
-        (void)umask(umaskOld);
+        wxLogSysError(_("Failed to set temporary file permissions"));

     }
 #endif // Unix
 
     }
 #endif // Unix
 

-    return ok;
+    return TRUE;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -555,7 +545,6 @@ bool wxTempFile::Commit()
 {
     m_file.Close();
 
 {
     m_file.Close();
 

-#if !defined(__WXMAC__) || defined(__UNIX__)

     if ( wxFile::Exists(m_strName) && wxRemove(m_strName) != 0 ) {
         wxLogSysError(_("can't remove file '%s'"), m_strName.c_str());
         return FALSE;
     if ( wxFile::Exists(m_strName) && wxRemove(m_strName) != 0 ) {
         wxLogSysError(_("can't remove file '%s'"), m_strName.c_str());
         return FALSE;


@@ -565,17 +554,6 @@ bool wxTempFile::Commit()
         wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str());
         return FALSE;
     }
         wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str());
         return FALSE;
     }

-#else
-  if ( wxFile::Exists(m_strName) && remove(wxUnix2MacFilename( m_strName )) != 0 ) {
-    wxLogSysError(_("can't remove file '%s'"), m_strName.c_str());
-    return FALSE;
-  }
-
-  if ( rename(wxUnix2MacFilename( m_strTemp ), wxUnix2MacFilename( m_strName )) != 0 ) {
-    wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str());
-    return FALSE;
-  }
-#endif

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -583,14 +561,9 @@ bool wxTempFile::Commit()
 void wxTempFile::Discard()
 {
     m_file.Close();
 void wxTempFile::Discard()
 {
     m_file.Close();

-#if !defined(__WXMAC__) || defined(__UNIX__)

     if ( wxRemove(m_strTemp) != 0 )
         wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
     if ( wxRemove(m_strTemp) != 0 )
         wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());

-#else
-    if ( remove( wxUnix2MacFilename(m_strTemp.fn_str())) != 0 )
-        wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
-#endif

 }
 
 }
 

-#endif
+#endif // wxUSE_FILE