ref: 41b34c448dda31c5d568f11d7afd70a7217ba152
dir: /sys/lib/dist/cmd/tailfsrv.c/
#include <u.h>
#include <libc.h>
void
main(void)
{
int fd, p[2];
char buf[8192], n;
pipe(p);
fd = create("/srv/log", OWRITE, 0666);
fprint(fd, "%d", p[0]);
close(fd);
close(p[0]);
while((n = read(p[1], buf, sizeof buf)) >= 0)
write(1, buf, n);
}