explain_chmod_or_die - change permissions of a file and report errors
void explain_chmod_or_die(const char *pathname, int mode);
The explain_chmod_or_die function is used to call the chmod(2) system
call. On failure an explanation wiil be printed to stderr, obtained
from explain_chmod(3), and the the process terminates by calling
This function is intended to be used in a fashion similar to the
The pathname, exactly as to be passed to the chmod(2) system
mode The mode, exactly as to be passed to the chmod(2) system call.
This function only returns on success. On failure, prints an
explanation and exit(EXIT_FAILURE)s.
Copyright (C) 2008 Peter Miller
Written by Peter Miller <email@example.com>