main: move masterkey warnings into parseMasterKey

This makes sure all callers of parseMasterKey warn the user.
At the moment there is only one, but another one will be added
soon for forcing a password change when only the master key is
known.

1 files changed, 6 insertions, 2 deletions

diff --git a/masterkey.go b/masterkey.go
index 2e8ca4c..c933669 100644
--- a/masterkey.go
+++ b/masterkey.go
@@ -49,12 +49,16 @@ func parseMasterKey(masterkey string) []byte {
 	masterkey = strings.Replace(masterkey, "-", "", -1)
 	key, err := hex.DecodeString(masterkey)
 	if err != nil {
-		tlog.Fatal.Printf("Could not parse master key: %v\n", err)
+		tlog.Fatal.Printf("Could not parse master key: %v", err)
 		os.Exit(1)
 	}
 	if len(key) != cryptocore.KeyLen {
-		tlog.Fatal.Printf("Master key has length %d but we require length %d\n", len(key), cryptocore.KeyLen)
+		tlog.Fatal.Printf("Master key has length %d but we require length %d", len(key), cryptocore.KeyLen)
 		os.Exit(1)
 	}
+	tlog.Info.Printf("Using explicit master key.")
+	tlog.Info.Printf(tlog.ColorYellow +
+		"THE MASTER KEY IS VISIBLE VIA \"ps ax\" AND MAY BE STORED IN YOUR SHELL HISTORY!\n" +
+		"ONLY USE THIS MODE FOR EMERGENCIES." + tlog.ColorReset)
 	return key
 }