/* The idea of this program is that you run it once at system boot time,
- to set the local RTC to the time received by GPS. Further synchronization
- during system runtime is then handled by ntpd, interfacing with gpsd using
- the ntp shared memory protocol.
- However, ntpd is unable to accept a GPS time that's off by more than four
- hours from the system RTC, so initial synchronization has to be done
- externally. 'ntpdate' is the usual option, but doesn't work if you're
- offline. Thus, this gpsdate utilith was created to fill the gap. */
/* gpsdate - small utility to set system RTC based on gpsd time
- (C) 2013 by sysmocom - s.f.m.c. GmbH, Author: Harald Welte
- All Rights Reserved
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */