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-rw-r--r--lib/gtls.c4
-rw-r--r--lib/ssluse.c4
2 files changed, 8 insertions, 0 deletions
diff --git a/lib/gtls.c b/lib/gtls.c
index d5c8f1a79..81748306e 100644
--- a/lib/gtls.c
+++ b/lib/gtls.c
@@ -260,6 +260,7 @@ Curl_gtls_connect(struct connectdata *conn,
const char *ptr;
void *ssl_sessionid;
size_t ssl_idsize;
+ bool sni = TRUE; /* default is SNI enabled */
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
@@ -279,6 +280,8 @@ Curl_gtls_connect(struct connectdata *conn,
failf(data, "GnuTLS does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
+ else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
+ sni = FALSE; /* SSLv3 has no SNI */
/* allocate a cred struct */
rc = gnutls_certificate_allocate_credentials(&conn->ssl[sockindex].cred);
@@ -335,6 +338,7 @@ Curl_gtls_connect(struct connectdata *conn,
#ifdef ENABLE_IPV6
(0 == Curl_inet_pton(AF_INET6, conn->host.name, &addr)) &&
#endif
+ sni &&
(gnutls_server_name_set(session, GNUTLS_NAME_DNS, conn->host.name,
strlen(conn->host.name)) < 0))
infof(data, "WARNING: failed to configure server name indication (SNI) "
diff --git a/lib/ssluse.c b/lib/ssluse.c
index 324b05d47..fa81d08f5 100644
--- a/lib/ssluse.c
+++ b/lib/ssluse.c
@@ -1351,6 +1351,7 @@ ossl_connect_step1(struct connectdata *conn,
X509_LOOKUP *lookup=NULL;
curl_socket_t sockfd = conn->sock[sockindex];
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
+ bool sni = TRUE; /* default is SNI enabled */
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
#ifdef ENABLE_IPV6
struct in6_addr addr;
@@ -1376,9 +1377,11 @@ ossl_connect_step1(struct connectdata *conn,
break;
case CURL_SSLVERSION_SSLv2:
req_method = SSLv2_client_method();
+ sni = FALSE;
break;
case CURL_SSLVERSION_SSLv3:
req_method = SSLv3_client_method();
+ sni = FALSE;
break;
}
@@ -1565,6 +1568,7 @@ ossl_connect_step1(struct connectdata *conn,
#ifdef ENABLE_IPV6
(0 == Curl_inet_pton(AF_INET6, conn->host.name, &addr)) &&
#endif
+ sni &&
!SSL_set_tlsext_host_name(connssl->handle, conn->host.name))
infof(data, "WARNING: failed to configure server name indication (SNI) "
"TLS extension\n");