From c7661f40b6c6a23e5fe2090a94bd9fa6521242d7 Mon Sep 17 00:00:00 2001
From: "Guillaume J. Charmes" <charmes.guillaume@gmail.com>
Date: Tue, 26 Nov 2013 23:00:44 +0000
Subject: [PATCH] Make volumes opts more strict

---
 commands.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/commands.go b/commands.go
index d992db2e6c..db752447f0 100644
--- a/commands.go
+++ b/commands.go
@@ -1666,8 +1666,11 @@ func (opts PathOpts) String() string { return fmt.Sprintf("%v", map[string]struc
 func (opts PathOpts) Set(val string) error {
 	var containerPath string
 
-	splited := strings.SplitN(val, ":", 2)
-	if len(splited) == 1 {
+	if strings.Count(val, ":") > 2 {
+		return fmt.Errorf("bad format for volumes: %s", val)
+	}
+
+	if splited := strings.SplitN(val, ":", 2); len(splited) == 1 {
 		containerPath = splited[0]
 		val = filepath.Clean(splited[0])
 	} else {
@@ -1680,6 +1683,7 @@ func (opts PathOpts) Set(val string) error {
 		return fmt.Errorf("%s is not an absolute path", containerPath)
 	}
 	opts[val] = struct{}{}
+
 	return nil
 }