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authorDenys Vlasenko2010-01-13 22:07:34 +0100
committerDenys Vlasenko2010-01-13 22:07:34 +0100
commit4fc82e0067db4b54ee05d56feaa4fb981d380e5f (patch)
tree9b43ce7590e327e87010f54708640b6ff9ee385b /examples/var_service/ntpd/run
parentc041e239dbc02b99ee9a5a86bed6dc859ff956db (diff)
downloadbusybox-4fc82e0067db4b54ee05d56feaa4fb981d380e5f.zip
busybox-4fc82e0067db4b54ee05d56feaa4fb981d380e5f.tar.gz
examples: add example ntpd service
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'examples/var_service/ntpd/run')
-rwxr-xr-xexamples/var_service/ntpd/run60
1 files changed, 60 insertions, 0 deletions
diff --git a/examples/var_service/ntpd/run b/examples/var_service/ntpd/run
new file mode 100755
index 0000000..581d231
--- /dev/null
+++ b/examples/var_service/ntpd/run
@@ -0,0 +1,60 @@
+#!/bin/bash
+# (using bashism (arrays) in dhcp config)
+
+#exec >/dev/null
+exec 2>&1
+exec </dev/null
+
+user=root
+pool="us.pool.ntp.org" # replace "us" with your country code
+
+service="${PWD##*/}"
+rundir="/var/run/service/$service"
+default_p_opt="-p 0.$pool -p 1.$pool -p 2.$pool -p 3.$pool"
+
+
+# Make sure rundir/ exists
+mkdir -p "$rundir" 2>/dev/null
+chown -R "$user:" "$rundir"
+chmod -R a=rX "$rundir"
+rm -rf rundir 2>/dev/null
+ln -s "$rundir" rundir
+
+
+echo "* Checking network"
+test -f /var/run/service/fw/up || exec sleep 7
+sleep 5 # to let it settle
+
+# Grab config from dhcp
+cfg=-1
+for f in rundir/*.ntpconf; do
+ test -f "$f" || continue
+ . "$f"
+done
+
+# Select peers
+p_opt=""
+cfg=0
+while test x"${ntpip[$cfg]}" != x""; do
+ p_opt="$p_opt -p ${ntpip[$cfg]}"
+ let cfg=cfg+1
+done
+test x"$p_opt" == x"" && p_opt="$default_p_opt"
+
+if test x"$p_opt" == x""; then
+ echo "* No NTP peers configured, stopping"
+ sv o .
+ exec sleep 1
+fi
+
+
+# Let others know that we are up
+date '+%Y-%m-%d %H:%M:%S %Z' >rundir/up
+
+# Go go go
+echo "* Starting ntpd[$$]"
+exec \
+env - PATH="$PATH" \
+softlimit \
+setuidgid "$user" \
+ntpd -ddnNl -S ./ntp.script $p_opt