func cTermios(goTerm *Termios) *C.struct_termios {
var cTerm C.struct_termios
cTerm.c_iflag = C.tcflag_t(goTerm.IFlag)
cTerm.c_oflag = C.tcflag_t(goTerm.OFlag)
cTerm.c_cflag = C.tcflag_t(goTerm.CFlag)
cTerm.c_lflag = C.tcflag_t(goTerm.LFlag)
for idx, ch := range goTerm.CC {
cTerm.c_cc[idx] = C.cc_t(ch)
}
cTerm.c_ispeed = C.speed_t(goTerm.ISpeed)
cTerm.c_ospeed = C.speed_t(goTerm.OSpeed)
return &cTerm
}