The first call to query the mtu in dtls1_do_write correctly checks that the
[openssl.git] / ssl / d1_both.c
index 5fba38d..9a981e8 100644 (file)
@@ -224,13 +224,8 @@ void dtls1_hm_fragment_free(hm_fragment *frag)
        OPENSSL_free(frag);
        }
 
-/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
-int dtls1_do_write(SSL *s, int type)
-       {
-       int ret;
-       int curr_mtu;
-       unsigned int len, frag_off, mac_size, blocksize;
-
+static void dtls1_query_mtu(SSL *s)
+{
        /* AHA!  Figure out the MTU, and stick to the right size */
        if (s->d1->mtu < dtls1_min_mtu() && !(SSL_get_options(s) & SSL_OP_NO_QUERY_MTU))
                {
@@ -247,6 +242,16 @@ int dtls1_do_write(SSL *s, int type)
                                s->d1->mtu, NULL);
                        }
                }
+}
+
+/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
+int dtls1_do_write(SSL *s, int type)
+       {
+       int ret;
+       int curr_mtu;
+       unsigned int len, frag_off, mac_size, blocksize;
+
+       dtls1_query_mtu(s);
 #if 0 
        mtu = s->d1->mtu;
 
@@ -357,8 +362,7 @@ int dtls1_do_write(SSL *s, int type)
                                BIO_CTRL_DGRAM_MTU_EXCEEDED, 0, NULL) > 0 )
                                {
                                if(!(SSL_get_options(s) & SSL_OP_NO_QUERY_MTU))
-                                       s->d1->mtu = BIO_ctrl(SSL_get_wbio(s),
-                                               BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL);
+                                       dtls1_query_mtu(s);
                                else
                                        return -1;
                                }