summaryrefslogtreecommitdiff
path: root/recipes-support/ntp/files/ntpdate
diff options
context:
space:
mode:
authorjeff <jhatch@multitech.com>2023-01-24 09:37:57 -0600
committerjeff <jhatch@multitech.com>2023-01-24 09:37:57 -0600
commitc94c9986362ebf4084734a3963415c5d894cf3a6 (patch)
tree1f5d79df115e23318d93bfc9e99dddecf9be8748 /recipes-support/ntp/files/ntpdate
parent8400520cffdd3c133c684eac60ab438a7ecaa050 (diff)
parent2eaa3fd064097eb221b56d5df0e7136ba705a0cd (diff)
downloadmeta-mlinux-c94c9986362ebf4084734a3963415c5d894cf3a6.tar.gz
meta-mlinux-c94c9986362ebf4084734a3963415c5d894cf3a6.tar.bz2
meta-mlinux-c94c9986362ebf4084734a3963415c5d894cf3a6.zip
Merge branch 'md/cve-fixes2-squashed' into 6
Diffstat (limited to 'recipes-support/ntp/files/ntpdate')
-rwxr-xr-xrecipes-support/ntp/files/ntpdate59
1 files changed, 59 insertions, 0 deletions
diff --git a/recipes-support/ntp/files/ntpdate b/recipes-support/ntp/files/ntpdate
new file mode 100755
index 0000000..be3bacf
--- /dev/null
+++ b/recipes-support/ntp/files/ntpdate
@@ -0,0 +1,59 @@
+#!/bin/sh
+
+PATH=/sbin:/bin:/usr/bin:/usr/sbin
+
+test -x /usr/sbin/ntpdate || exit 0
+
+if test -f /etc/default/ntpdate ; then
+. /etc/default/ntpdate
+fi
+
+if [ "$NTPSERVERS" = "" ] ; then
+ if [ "$METHOD" = "" -a "$1" != "silent" ] ; then
+ echo "Please set NTPSERVERS in /etc/default/ntpdate"
+ exit 1
+ else
+ exit 0
+ fi
+fi
+
+# This is a heuristic: The idea is that if a static interface is brought
+# up, that is a major event, and we can put in some extra effort to fix
+# the system time. Feel free to change this, especially if you regularly
+# bring up new network interfaces.
+if [ "$METHOD" = static ]; then
+ OPTS="-b"
+fi
+
+if [ "$METHOD" = loopback ]; then
+ exit 0
+fi
+
+(
+
+LOCKFILE=/var/lock/ntpdate
+
+# Avoid running more than one at a time
+if [ -x /usr/bin/lockfile-create ]; then
+ lockfile-create $LOCKFILE
+ lockfile-touch $LOCKFILE &
+ LOCKTOUCHPID="$!"
+fi
+
+if /usr/sbin/ntpdate -s $OPTS $NTPSERVERS 2>/dev/null; then
+ if [ "$UPDATE_HWCLOCK" = "yes" ]; then
+ hwclock --systohc || :
+ fi
+fi
+
+if [ -x /usr/bin/lockfile-create ] ; then
+ kill $LOCKTOUCHPID
+ lockfile-remove $LOCKFILE
+fi
+
+) &
+
+# wait for all subprocesses to finish
+# this is required when using systemd service as ntpd will start before ntpdate finishes
+# and results in a bind error (port 123)
+wait