+int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
+ int maxlen);
+int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
+ int *al);
+int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
+ int maxlen);
+int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
+ int *al);
+long ssl_get_algorithm2(SSL *s);
+int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize);
+int tls12_get_req_sig_algs(SSL *s, unsigned char *p);