From: Michael Brown <mcb30@ipxe.org>
Date: Mon, 15 Oct 2012 11:41:04 +0000 (+0100)
Subject: [settings] Treat an empty formatted value as meaning "delete setting"
X-Git-Tag: v1.20.1~1628
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ad445fd0b955f74d45ec3af1822248572c2dd3b;p=thirdparty%2Fipxe.git

[settings] Treat an empty formatted value as meaning "delete setting"

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/core/settings.c b/src/core/settings.c
index 9b5bc0545..1b19c8f62 100644
--- a/src/core/settings.c
+++ b/src/core/settings.c
@@ -1052,8 +1052,8 @@ int storef_setting ( struct settings *settings, struct setting *setting,
 	int check_len;
 	int rc;
 
-	/* NULL value implies deletion */
-	if ( ! value )
+	/* NULL value or empty string implies deletion */
+	if ( ( ! value ) || ( ! value[0] ) )
 		return delete_setting ( settings, setting );
 
 	/* Parse formatted value */