ref: 5c96a51f3a0684765afd24930d2df7a899c22d70
dir: /sys/src/ape/lib/ap/plan9/cfgetospeed.c/
#include <termios.h> speed_t cfgetospeed(const struct termios *) { return B0; } int cfsetospeed(struct termios *, speed_t) { return 0; } speed_t cfgetispeed(const struct termios *) { return B0; } int cfsetispeed(struct termios *, speed_t) { return 0; }