Related fdo#60338: Restrictive open mode flags for tempfile w/o calling umask

Change-Id: Ia83cbe4c9352eb2a2cf317dd1fc5771ddc12c993

sal/osl/unx/file.cxx

@@ -821,7 +821,8 @@ openMemoryAsFile( void *address, size_t size, oslFileHandle *pHandle, const char
 #endif
 
 oslFileError
-openFilePath( const char *cpFilePath, oslFileHandle* pHandle, sal_uInt32 uFlags )
+openFilePath( const char *cpFilePath, oslFileHandle* pHandle, sal_uInt32 uFlags,
+              mode_t mode)
 {
     oslFileError eRet;
 
@@ -852,18 +853,22 @@ openFilePath( const char *cpFilePath, oslFileHandle* pHandle, sal_uInt32 uFlags
 #endif
 
     /* set mode and flags */
-    int mode  = S_IRUSR | S_IRGRP | S_IROTH;
+    int defmode  = S_IRUSR | S_IRGRP | S_IROTH;
     int flags = O_RDONLY;
     if (uFlags & osl_File_OpenFlag_Write)
     {
-        mode |= S_IWUSR | S_IWGRP | S_IWOTH;
+        defmode |= S_IWUSR | S_IWGRP | S_IWOTH;
         flags = OPEN_WRITE_FLAGS;
     }
     if (uFlags & osl_File_OpenFlag_Create)
     {
-        mode |= S_IWUSR | S_IWGRP | S_IWOTH;
+        defmode |= S_IWUSR | S_IWGRP | S_IWOTH;
         flags = OPEN_CREATE_FLAGS;
     }
+    if (mode == mode_t(-1))
+    {
+        mode = defmode;
+    }
 
     /* Check for flags passed in from SvFileStream::Open() */
     if (uFlags & osl_File_OpenFlag_Trunc)
@@ -999,6 +1004,12 @@ openFilePath( const char *cpFilePath, oslFileHandle* pHandle, sal_uInt32 uFlags
 
 oslFileError
 SAL_CALL osl_openFile( rtl_uString* ustrFileURL, oslFileHandle* pHandle, sal_uInt32 uFlags )
+{
+    return openFile(ustrFileURL, pHandle, uFlags, mode_t(-1));
+}
+
+oslFileError
+SAL_CALL openFile( rtl_uString* ustrFileURL, oslFileHandle* pHandle, sal_uInt32 uFlags, mode_t mode )
 {
     oslFileError eRet;
 
@@ -1016,7 +1027,7 @@ SAL_CALL osl_openFile( rtl_uString* ustrFileURL, oslFileHandle* pHandle, sal_uIn
         return oslTranslateFileError (OSL_FET_ERROR, errno);
 #endif /* MACOSX */
 
-    return openFilePath (buffer, pHandle, uFlags);
+    return openFilePath (buffer, pHandle, uFlags, mode);
 }
 
 oslFileError

sal/osl/unx/file_impl.hxx

@@ -22,6 +22,7 @@
 
 #include "osl/file.h"
 #include <stddef.h>
+#include <sys/types.h>
 
 struct DirectoryItem_Impl
 {
@@ -43,10 +44,14 @@ struct DirectoryItem_Impl
     oslFileType getFileType() const;
 };
 
+oslFileError openFile(
+    rtl_uString * pustrFileURL, oslFileHandle * pHandle, sal_uInt32 uFlags,
+    mode_t mode);
+
 oslFileError openFilePath(
     const char *cpFilePath,
     oslFileHandle* pHandle,
-    sal_uInt32 uFlags );
+    sal_uInt32 uFlags, mode_t mode );
 
 #endif /* INCLUDED_FILE_IMPL_HXX */
 

sal/osl/unx/file_misc.cxx

@@ -917,7 +917,7 @@ static int oslDoCopyFile(const sal_Char* pszSourceFileName, const sal_Char* pszD
 
     if (openFilePath(pszSourceFileName,
                          &SourceFileFH,
-                         osl_File_OpenFlag_Read|osl_File_OpenFlag_NoLock|osl_File_OpenFlag_NoExcl) != osl_File_E_None)
+                         osl_File_OpenFlag_Read|osl_File_OpenFlag_NoLock|osl_File_OpenFlag_NoExcl, mode_t(-1)) != osl_File_E_None)
     {
         // Let's hope errno is still set relevantly after openFilePath...
         nRet=errno;

sal/osl/unx/tempfile.cxx

@@ -30,6 +30,7 @@
 #include <sal/macros.h>
 
 #include "file_url.h"
+#include "file_impl.hxx"
 
 oslFileError SAL_CALL osl_getTempDirURL( rtl_uString** pustrTempDir )
 {
@@ -233,17 +234,13 @@ static oslFileError osl_create_temp_file_impl_(
 
         if (osl_File_E_None == osl_error)
         {
-            /* RW permission for the user only! */
-            mode_t old_mode = umask(077);
-
-            osl_error = osl_openFile(
+            osl_error = openFile(
                 tmp_file_url,
                 file_handle,
                 osl_File_OpenFlag_Read |
                 osl_File_OpenFlag_Write |
-                osl_File_OpenFlag_Create);
-
-            umask(old_mode);
+                osl_File_OpenFlag_Create,
+                S_IRUSR | S_IWUSR);
         }
 
         /* in case of error osl_File_E_EXIST we simply try again else we give up */