ref: 61a10b4c639c4d836e3e738d0e97fc2c23bd3b59 dir: /sys/src/ape/lib/ap/plan9/ttyname.c/
#include <unistd.h> #include <stdio.h> char * ttyname(int fd) { static char buf[100]; sprintf(buf, "/fd/%d", fd); return buf; }