__SMBF
if (fp->_flags & __SMBF)
if (fp->_flags & __SMBF)
if ((fp->_flags & (__SLBF|__SNBF|__SMBF)) == 0
flags |= __SMBF;
flags |= __SMBF;
if (flags & __SMBF)
flags &= ~(__SLBF | __SNBF | __SMBF | __SOPT | __SNPT | __SEOF);