From 63bd73a5cfc3501c7fbeacb629da12d8278ea352 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Sat, 17 Sep 2016 04:21:25 +0200
Subject: [PATCH] base-files: remind users to set root password

print a warning when a shell spawns, telling users to set a root password.

Signed-off-by: John Crispin <john@phrozen.org>
---
 package/base-files/files/etc/profile | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/package/base-files/files/etc/profile b/package/base-files/files/etc/profile
index f2def7fc0ba..d70bafca49e 100644
--- a/package/base-files/files/etc/profile
+++ b/package/base-files/files/etc/profile
@@ -29,3 +29,16 @@ alias ll='ls -alF --color=auto'
 	done
 	unset FILE
 }
+
+if ( grep -qsE '^root:[!x]?:' /etc/shadow && \
+     grep -qsE '^root:[!x]?:' /etc/passwd  && \
+     [ -z "$FAILSAFE" ] )
+then
+cat << EOF
+=== WARNING! =====================================
+There is no root password defined on this device!
+Use the "passwd" command to set up a new password
+in order to prevent unauthorized SSH logins.
+--------------------------------------------------
+EOF
+fi
-- 
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