internal static SafeFileHandle Open(string fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, long preallocationSize)
{
// Translate the arguments into arguments for an open call.
Interop.Sys.OpenFlags openFlags = PreOpenConfigurationFromOptions(mode, access, share, options);
// If the file gets created a new, we'll select the permissions for it. Most Unix utilities by default use 666 (read and
// write for all), so we do the same (even though this doesn't match Windows, where by default it's possible to write out
// a file and then execute it). No matter what we choose, it'll be subject to the umask applied by the system, such that the
// actual permissions will typically be less than what we select here.
const Interop.Sys.Permissions OpenPermissions =
Interop.Sys.Permissions.S_IRUSR | Interop.Sys.Permissions.S_IWUSR |
Interop.Sys.Permissions.S_IRGRP | Interop.Sys.Permissions.S_IWGRP |
Interop.Sys.Permissions.S_IROTH | Interop.Sys.Permissions.S_IWOTH;
SafeFileHandle safeFileHandle = Open(fullPath, openFlags, (int)OpenPermissions);
try
{
safeFileHandle.Init(fullPath, mode, access, share, options, preallocationSize);
return(safeFileHandle);
}
catch (Exception)
{
safeFileHandle.Dispose();
throw;
}
}
