From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 30 Apr 2009 16:49:44 +0000 (+0200)
Subject: don't try parsing too short vendor IEs
X-Git-Tag: v0.9.14~43
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fbf80af54408799f7e3c03430b798759019dd79b;p=thirdparty%2Fiw.git

don't try parsing too short vendor IEs
---

diff --git a/scan.c b/scan.c
index c78760c..548ce40 100644
--- a/scan.c
+++ b/scan.c
@@ -93,14 +93,22 @@ static void print_vendor(unsigned char len, unsigned char *data,
 {
 	int i;
 
+	if (len < 3) {
+		printf("\tVendor specific: <too short> data:\n");
+		for(i = 0; i < len; i++)
+			printf(" %.02x", data[i]);
+		printf("\n");
+		return;
+	}
+
 	/* currently _all_ vendor IEs are unknown (not parsed) */
 	if (!params->unknown)
 		return;
 
-	printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data: ",
+	printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:",
 		data[0], data[1], data[2]);
-	for (i=3; i<len; i++)
-		printf("\\x%.2x", data[i]);
+	for (i = 3; i < len; i++)
+		printf(" %.2x", data[i]);
 	printf("\n");
 }