From: David Ward <david.ward@ll.mit.edu>
Date: Mon, 25 Mar 2013 04:23:16 +0000 (+0000)
Subject: ip/xfrm: Do not print a zero-length algorithm key
X-Git-Tag: v3.9.0~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8dbe67d2fe40fc4dc873610f8f20a5fa042cc4bc;p=thirdparty%2Fiproute2.git

ip/xfrm: Do not print a zero-length algorithm key

Signed-off-by: David Ward <david.ward@ll.mit.edu>
---

diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
index 257693878..31135731f 100644
--- a/ip/ipxfrm.c
+++ b/ip/ipxfrm.c
@@ -536,12 +536,14 @@ static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
 		goto fin;
 	}
 
-	fprintf(fp, "0x");
-	for (i = 0; i < keylen; i ++)
-		fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
+	if (keylen > 0) {
+		fprintf(fp, "0x");
+		for (i = 0; i < keylen; i ++)
+			fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
 
-	if (show_stats > 0)
-		fprintf(fp, " (%d bits)", algo->alg_key_len);
+		if (show_stats > 0)
+			fprintf(fp, " (%d bits)", algo->alg_key_len);
+	}
 
  fin:
 	if (newline)