#include #include int main () { char x; int nbytes; printf ("talk to me baby\n"); while (1) { nbytes = read (0, &x, 1); if (nbytes < 0) { if (errno != EINTR) perror (""); } else if (nbytes == 0) { printf ("end of file\n"); exit (0); } else write (1, &x, 1); } } int func1 () { return 4; }