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File openssl-Added-OPENSSL_NO_EC2M-guards-around-the-preferred-EC.patch of Package openssl (Revision 24e4f51bc4a92a4ae82be16bce609a8a)

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From 8b6205c48496f519774954db97836343820bff27 Mon Sep 17 00:00:00 2001
From: Matt Caswell <matt@openssl.org>
Date: Mon, 10 Nov 2014 23:42:50 +0000
Subject: [PATCH] Added OPENSSL_NO_EC2M guards around the preferred EC curve
 list

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
---
 ssl/t1_lib.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index d6aff4b..f5728c2 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -204,28 +204,40 @@ static int nid_list[] =
 
 static int pref_list[] =
 	{
+#ifndef OPENSSL_NO_EC2M
 		NID_sect571r1, /* sect571r1 (14) */ 
 		NID_sect571k1, /* sect571k1 (13) */ 
+#endif
 		NID_secp521r1, /* secp521r1 (25) */	
+#ifndef OPENSSL_NO_EC2M
 		NID_sect409k1, /* sect409k1 (11) */ 
 		NID_sect409r1, /* sect409r1 (12) */
+#endif
 		NID_secp384r1, /* secp384r1 (24) */
+#ifndef OPENSSL_NO_EC2M
 		NID_sect283k1, /* sect283k1 (9) */
 		NID_sect283r1, /* sect283r1 (10) */ 
+#endif
 		NID_secp256k1, /* secp256k1 (22) */ 
 		NID_X9_62_prime256v1, /* secp256r1 (23) */ 
+#ifndef OPENSSL_NO_EC2M
 		NID_sect239k1, /* sect239k1 (8) */ 
 		NID_sect233k1, /* sect233k1 (6) */
 		NID_sect233r1, /* sect233r1 (7) */ 
+#endif
 		NID_secp224k1, /* secp224k1 (20) */ 
 		NID_secp224r1, /* secp224r1 (21) */
+#ifndef OPENSSL_NO_EC2M
 		NID_sect193r1, /* sect193r1 (4) */ 
 		NID_sect193r2, /* sect193r2 (5) */ 
+#endif
 		NID_secp192k1, /* secp192k1 (18) */
 		NID_X9_62_prime192v1, /* secp192r1 (19) */ 
+#ifndef OPENSSL_NO_EC2M
 		NID_sect163k1, /* sect163k1 (1) */
 		NID_sect163r1, /* sect163r1 (2) */
 		NID_sect163r2, /* sect163r2 (3) */
+#endif
 		NID_secp160k1, /* secp160k1 (15) */
 		NID_secp160r1, /* secp160r1 (16) */ 
 		NID_secp160r2, /* secp160r2 (17) */ 
@@ -233,7 +245,7 @@ static int pref_list[] =
 
 int tls1_ec_curve_id2nid(int curve_id)
 	{
-	/* ECC curves from draft-ietf-tls-ecc-12.txt (Oct. 17, 2005) */
+	/* ECC curves from RFC 4492 */
 	if ((curve_id < 1) || ((unsigned int)curve_id >
 				sizeof(nid_list)/sizeof(nid_list[0])))
 		return 0;
@@ -242,7 +254,7 @@ int tls1_ec_curve_id2nid(int curve_id)
 
 int tls1_ec_nid2curve_id(int nid)
 	{
-	/* ECC curves from draft-ietf-tls-ecc-12.txt (Oct. 17, 2005) */
+	/* ECC curves from RFC 4492 */
 	switch (nid)
 		{
 	case NID_sect163k1: /* sect163k1 (1) */
@@ -488,11 +500,6 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned c
 		s2n(TLSEXT_TYPE_elliptic_curves,ret);
 		s2n(s->tlsext_ellipticcurvelist_length + 2, ret);
 
-		/* NB: draft-ietf-tls-ecc-12.txt uses a one-byte prefix for
-		 * elliptic_curve_list, but the examples use two bytes.
-		 * http://www1.ietf.org/mail-archive/web/tls/current/msg00538.html
-		 * resolves this to two bytes.
-		 */
 		s2n(s->tlsext_ellipticcurvelist_length, ret);
 		memcpy(ret, s->tlsext_ellipticcurvelist, s->tlsext_ellipticcurvelist_length);
 		ret+=s->tlsext_ellipticcurvelist_length;
@@ -1800,7 +1807,7 @@ int ssl_prepare_clienthello_tlsext(SSL *s)
 		s->tlsext_ecpointformatlist[1] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime;
 		s->tlsext_ecpointformatlist[2] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
 
-		/* we support all named elliptic curves in draft-ietf-tls-ecc-12 */
+		/* we support all named elliptic curves in RFC 4492 */
 		if (s->tlsext_ellipticcurvelist != NULL) OPENSSL_free(s->tlsext_ellipticcurvelist);
 		s->tlsext_ellipticcurvelist_length = sizeof(pref_list)/sizeof(pref_list[0]) * 2;
 		if ((s->tlsext_ellipticcurvelist = OPENSSL_malloc(s->tlsext_ellipticcurvelist_length)) == NULL)
-- 
2.1.2

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