__SOFF
if (fp->_flags & __SOFF)
if (fp->_flags & __SOFF)
if (fp->_flags & __SOFF)
if (fp->_flags & __SOFF)
fp->_flags &= ~__SOFF;
fp->_flags |= __SOFF;
fp->_flags &= ~__SOFF; /* paranoia */
fp->_flags &= ~__SOFF; /* in case FAPPEND mode is set */