#! /bin/sh

# Keep this POSIX, no bash-isms

# make it easy to pipe/save stderr
exec 2>&1

# print what we do
set -x
if [ $(id -u) != 0 ]; then
    echo "Please run as root"
    exit 1
fi

id
uname -a
cat /etc/*release
if command -v gpsd; then
    # get version
    gpsd -V
    # get as-built options
    gpsd -h | grep '^#.*enabled'
fi
# use sockstat, lsof, netstat or ss, depending, for owner of port 2947
if command -v sockstat; then
    # sockstat for FreeBSD
    sockstat -l | sed -nE '1p;/:2947 |gpsd/p'
elif command -v lsof; then
    lsof -iTCP:2947 -s TCP:LISTEN
    # gpsd open files
    lsof -c gpsd | sed -nE '1p;/CHR|LISTEN/p'
elif command -v netstat; then
    # FreeBSD does not support "-n"
    netstat -lp | sed -nE '2p;/:2947 |gpsd/p'
elif command -v ss; then
    ss -ltpn | sed -nE '1p;/:2947 |gpsd/p'
fi
ps ax | sed -nE '1p;/gpsd/p'
if command -v gpspipe; then
    gpspipe -V
    # try to get JSON header
    gpspipe -w -n 2 -x 20
fi
if command -v ntpshmmon; then
    ntpshmmon -V
    # 6 lines, or 10 seconds, of ntpshmmon
    ntpshmmon -n 6 -t 10
fi
# check for /dev/pps*, /dev/ttyA*, /dev/ttyU*
ls -l /dev/pps* /dev/tty[AU]*
# check for USB receivers
if command -v lsusb; then
    lsusb
fi
echo PYTHONPATH $PYTHONPATH
if command -v gpscat; then
    head -n 1 `command -v gpscat`
fi
if command -v python; then
    python -V
    python -c "import gps;print(gps.__version__)"
fi
if command -v python3; then
    python3 -V
    python3 -c "import gps;print(gps.__version__)"
fi

if command -v systemctl; then
        cat /etc/*/gpsd
	systemctl cat gpsd.service
	systemctl cat gpsd.socket
	systemctl status gpsd.service
	systemctl status gpsd.socket
	journalctl -u gpsd.service --since today
fi
# do not print the rest
set +x
echo "Please send the entire, untouched output."
exit 0