[PATCH] useradd_base.bbclass: Make perform_groupmems handle overlapping usernames

[Peter Kjellerstedt <peter.kjellerstedt@axis.com>]

If the name of the last user being part of the group had a name that
was a prefix of the user being added, then perform_groupmems() would
treat it as if the user already existed in the list of users and not
add it.

Reported-by: Peter Henricsson <peter.henricsson@axis.com>
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
---
 meta/classes/useradd_base.bbclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes/useradd_base.bbclass b/meta/classes/useradd_base.bbclass
index 551c82c322..0d0bdb80f5 100644
--- a/meta/classes/useradd_base.bbclass
+++ b/meta/classes/useradd_base.bbclass
@@ -51,10 +51,10 @@ perform_groupmems () {
 	local groupname=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-g" || $i == "--group") print $(i+1) }'`
 	local username=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-a" || $i == "--add") print $(i+1) }'`
 	bbnote "${PN}: Running groupmems command with group $groupname and user $username"
-	local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
+	local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*$" $rootdir/etc/group || true`"
 	if test "x$mem_exists" = "x"; then
 		eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO groupmems \$opts\" || true
-		mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
+		mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*$" $rootdir/etc/group || true`"
 		if test "x$mem_exists" = "x"; then
 			bbfatal "${PN}: groupmems command did not succeed."
 		fi
-- 
2.12.0