From 2ea8ff1e749d44f6c44caaf16d9e9b7d20714a21 Mon Sep 17 00:00:00 2001
From: Derek Parker <parkerderek86@gmail.com>
Date: Wed, 12 Nov 2014 17:40:44 -0600
Subject: [PATCH] Do not panic on incorrect command arity

---
 command/command.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/command/command.go b/command/command.go
index 3f62cfee..6884b6a2 100644
--- a/command/command.go
+++ b/command/command.go
@@ -124,6 +124,10 @@ func next(p *proctl.DebuggedProcess, args ...string) error {
 }
 
 func clear(p *proctl.DebuggedProcess, args ...string) error {
+	if len(args) == 0 {
+		return fmt.Errorf("not enough arguments")
+	}
+
 	var (
 		fn    *gosym.Func
 		pc    uint64
@@ -167,6 +171,10 @@ func clear(p *proctl.DebuggedProcess, args ...string) error {
 }
 
 func breakpoint(p *proctl.DebuggedProcess, args ...string) error {
+	if len(args) == 0 {
+		return fmt.Errorf("not enough arguments")
+	}
+
 	var (
 		fn    *gosym.Func
 		pc    uint64
@@ -211,7 +219,7 @@ func breakpoint(p *proctl.DebuggedProcess, args ...string) error {
 
 func printVar(p *proctl.DebuggedProcess, args ...string) error {
 	if len(args) == 0 {
-		return fmt.Errorf("Not enough arguments to print command")
+		return fmt.Errorf("not enough arguments")
 	}
 
 	val, err := p.EvalSymbol(args[0])