From: Jeremy Kerr <jk@ozlabs.org>
Date: Fri, 10 May 2013 04:01:06 +0000 (+0800)
Subject: discover: Don't access bytes before the start of empty strings
X-Git-Tag: v1.0.0~636
X-Git-Url: https://git.ozlabs.org/?p=petitboot;a=commitdiff_plain;h=07bf13167aacf49a694aea3341caa15379916bec

discover: Don't access bytes before the start of empty strings

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---

diff --git a/discover/parser-conf.c b/discover/parser-conf.c
index 94612c3..4bd2387 100644
--- a/discover/parser-conf.c
+++ b/discover/parser-conf.c
@@ -46,6 +46,9 @@ char *conf_strip_str(char *s)
 	if (!s)
 		return NULL;
 
+	if (!strlen(s))
+		return NULL;
+
 	while (*s == '"' || *s == '\'' || isspace(*s))
 		s++;