hs: Rename rend_mid_introduce() with legacy semantic

Signed-off-by: David Goulet <dgoulet@torproject.org>

src/or/hs_intropoint.c

@@ -577,7 +577,7 @@ hs_intro_received_introduce1(or_circuit_t *circ, const uint8_t *request,
   /* We are sure here to have at least DIGEST_LEN bytes. */
   if (introduce1_cell_is_legacy(request)) {
     /* Handle a legacy cell. */
-    ret = rend_mid_introduce(circ, request, request_len);
+    ret = rend_mid_introduce_legacy(circ, request, request_len);
   } else {
     /* Handle a non legacy cell. */
     ret = handle_introduce1(circ, request, request_len);

src/or/rendmid.c

@@ -133,8 +133,8 @@ rend_mid_establish_intro_legacy(or_circuit_t *circ, const uint8_t *request,
  * INTRODUCE2 cell.
  */
 int
-rend_mid_introduce(or_circuit_t *circ, const uint8_t *request,
-                   size_t request_len)
+rend_mid_introduce_legacy(or_circuit_t *circ, const uint8_t *request,
+                          size_t request_len)
 {
   or_circuit_t *intro_circ;
   char serviceid[REND_SERVICE_ID_LEN_BASE32+1];

src/or/rendmid.h

@@ -14,8 +14,8 @@
 
 int rend_mid_establish_intro_legacy(or_circuit_t *circ, const uint8_t *request,
                                     size_t request_len);
-int rend_mid_introduce(or_circuit_t *circ, const uint8_t *request,
-                       size_t request_len);
+int rend_mid_introduce_legacy(or_circuit_t *circ, const uint8_t *request,
+                              size_t request_len);
 int rend_mid_establish_rendezvous(or_circuit_t *circ, const uint8_t *request,
                                   size_t request_len);
 int rend_mid_rendezvous(or_circuit_t *circ, const uint8_t *request,