etc/rc.d/devfs handling of symlinks

Kostik Belousov kostikbel at gmail.com
Tue Jan 19 16:33:48 UTC 2010


Hello,
It seems that /etc/rc.d/devfs is not quite correct in the handling of
symlinks. If symlink is established to a node in /dev subdirectory,
like the following line from /etc/devfs.conf:
link	card1	dri/card0
(linking /dev/dri/card1 to /dev/dri/card0), then the test for existence
of the symlink source will fail.

Even more, I do not see a reason to test the mentioned existence, since
symlink may be usefully created in advance for dynamically created node.

Unless somebody objects, I intent to commit the following change.

Index: etc/rc.d/devfs
===================================================================
--- etc/rc.d/devfs	(revision 202627)
+++ etc/rc.d/devfs	(working copy)
@@ -44,7 +44,7 @@
 		while read action devicelist parameter; do
 			case "${action}" in
 			l*)	for device in ${devicelist}; do
-					if [ -c ${device} -a ! -e ${parameter} ]; then
+					if [ ! -e ${parameter} ]; then
 						ln -fs ${device} ${parameter}
 					fi
 				done
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