ref: a351bcdccdf5a4273bc8dc3360a48fbb8b8aa9ea
dir: /progs/listen.c.ms/
.P1 .ps -1 .ti -1i .B .BX listen.c .ps +1 .CW .ps -2 .vs .15i #include <u.h> #include <libc.h> void main(int argc, char* argv[]) { int cfd, lfd; char adir[40]; char dir[40]; cfd = announce("tcp!*!9988", adir); if (cfd < 0) sysfatal("announce: %r"); print("announced in %s (cfd=%d)\en", adir, cfd); lfd = listen(adir, dir); print("attending call in %s (lfd=%d)\en", dir, lfd); for(;;) sleep(1000); // let us see } .ps +2 .P2