54 lines
1.4 KiB
Diff
54 lines
1.4 KiB
Diff
Check if symlinks are valid
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When using root option and $initd/$bn is a symlink, the script would fail because
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the symlink points to a path on target. For example:
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/path/to/target/rootfs/etc/init.d/syslog -> /etc/init.d/syslog.busybox
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Hence, [ -f /path/to/target/rootfs/etc/init.d/syslog ] condition would return
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false.
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This patch adds the posibility to check whether the file the symlink points to
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actually exists in rootfs path and then continue.
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Upstream-Status: Pending
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Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
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Index: git/update-rc.d
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===================================================================
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--- git.orig/update-rc.d 2013-01-16 12:12:58.349814356 +0200
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+++ git/update-rc.d 2013-01-16 13:02:42.490864939 +0200
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@@ -147,13 +147,29 @@
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bn=$1
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shift
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+sn=$initd/$bn
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+if [ -L "$sn" -a -n $root ]; then
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+ readlink=$(which readlink)
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+
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+ if [ -n $readlink ]; then
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+ sn=$($readlink "$sn")
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+ case "$sn" in
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+ /*) sn=${root}${sn} ;;
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+ *) sn=$initd/$sn ;;
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+ esac
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+ else
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+ echo "update-rc.d: readlink tool not present, cannot check whether \
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+ $sn symlink points to a valid file." >&2
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+ fi
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+fi
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+
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if [ $1 != "remove" ]; then
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- if [ ! -f "$initd/$bn" ]; then
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+ if [ ! -f "$sn" ]; then
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echo "update-rc.d: $initd/$bn: file does not exist" >&2
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exit 1
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fi
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else
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- if [ -f "$initd/$bn" ]; then
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+ if [ -f "$sn" ]; then
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if [ $force -eq 1 ]; then
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echo "update-rc.d: $initd/$bn exists during rc.d purge (continuing)" >&2
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else
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