exit_code         254 src/main.c         int exit_code = EXIT_FAILURE;
exit_code         279 src/main.c             return exit_code;
exit_code         302 src/main.c             exit_code = EXIT_SUCCESS;
exit_code         457 src/main.c             exit_code = EXIT_SUCCESS;
exit_code         459 src/main.c             exit_code = do_nc () ? EXIT_SUCCESS : EXIT_FAILURE;
exit_code         551 src/main.c             exit_code = EXIT_FAILURE;
exit_code         556 src/main.c         return exit_code;