From 69c13fdccec1115ac970278d80a33b38d74f2f4b Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Thu, 3 Mar 2016 19:55:27 +0900
Subject: [PATCH] fix buffer overrun

---
 extlib/benz/proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extlib/benz/proc.c b/extlib/benz/proc.c
index a77814e0..7f6baad2 100644
--- a/extlib/benz/proc.c
+++ b/extlib/benz/proc.c
@@ -217,8 +217,9 @@ pic_get_args(pic_state *pic, const char *format, ...)
       pic_error(pic, "pic_get_args: invalid argument specifier given", 1, pic_char_value(pic, c));
     }
 
-    if (format[1] == '+') {
+    if (*format == '+') {
       pic_value *p;
+      format++;
       p = va_arg(ap, pic_value*);
       *p = GET_OPERAND(pic, i);
     }