Implement ALPN server-side
diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index aa5daf4..c866b6f 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -320,6 +320,7 @@
 #define SSL_ALERT_MSG_UNSUPPORTED_EXT      110  /* 0x6E */
 #define SSL_ALERT_MSG_UNRECOGNIZED_NAME    112  /* 0x70 */
 #define SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115  /* 0x73 */
+#define SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */
 
 #define SSL_HS_HELLO_REQUEST            0
 #define SSL_HS_CLIENT_HELLO             1