Write a program to verify that the algorithm employed by ftok() uses the file’s i-node number, minor device number, and proj value, as described in Section 45.2. (It is sufficient to print all of these values, as well as the return value from ftok(), in hexadecimal, and inspect the results for a few examples.)

Implement ftok().

Verify (by experiment) the statements made in Section 45.5 about the algorithm used to generate System V IPC identifiers.