m_length
mp->m_length = 0;
mbase->m_length = mp->m_char - mbase->m_char + 1;
if (mp->m_length > 0) {
i += mp->m_length;
fm.length = htobe16(mp->m_length - 1);
if (mp->m_length > 0) {
i += mp->m_length;
mp->m_length - 1) < 0)
unsigned int m_length;