PF_OSFP_FILE
if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
file = open(PF_OSFP_FILE, O_RDONLY);
PF_OSFP_FILE, strerror(errno));
warnc(err, "%s", PF_OSFP_FILE);
PF_OPT_QUIET|PF_OPT_NOACTION, PF_OSFP_FILE) == 0)