+int tls1_set_server_sigalgs(SSL *s)
+ {
+ int al;
+ size_t i;
+ /* Clear any shared sigtnature algorithms */
+ if (s->cert->shared_sigalgs)
+ {
+ OPENSSL_free(s->cert->shared_sigalgs);
+ s->cert->shared_sigalgs = NULL;
+ }
+ /* Clear certificate digests and validity flags */
+ for (i = 0; i < SSL_PKEY_NUM; i++)
+ {
+ s->cert->pkeys[i].digest = NULL;
+ s->cert->pkeys[i].valid_flags = 0;
+ }
+
+ /* If sigalgs received process it. */
+ if (s->cert->peer_sigalgs)
+ {
+ if (!tls1_process_sigalgs(s))
+ {
+ SSLerr(SSL_F_TLS1_SET_SERVER_SIGALGS,
+ ERR_R_MALLOC_FAILURE);
+ al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+ /* Fatal error is no shared signature algorithms */
+ if (!s->cert->shared_sigalgs)
+ {
+ SSLerr(SSL_F_TLS1_SET_SERVER_SIGALGS,
+ SSL_R_NO_SHARED_SIGATURE_ALGORITHMS);
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ goto err;
+ }
+ }
+ else
+ ssl_cert_set_default_md(s->cert);
+ return 1;
+ err:
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
+ return 0;
+ }
+