Let 0.2.3 clients exit to internal addresses if they want

Clients now consider the ClientRejectInternalAddresses config option
when using a microdescriptor consensus stanza to decide whether
an exit relay would allow exiting to an internal address. Fixes
bug 7190; bugfix on 0.2.3.1-alpha.

changes/bug7190

@@ -0,0 +1,6 @@
+  o Minor bugfixes:
+    - Clients now consider the ClientRejectInternalAddresses config option
+      when using a microdescriptor consensus stanza to decide whether
+      an exit relay would allow exiting to an internal address. Fixes
+      bug 7190; bugfix on 0.2.3.1-alpha.
+

src/or/policies.c

@@ -1462,15 +1462,14 @@ compare_tor_addr_to_short_policy(const tor_addr_t *addr, uint16_t port,
   int i;
   int found_match = 0;
   int accept;
-  (void)addr;
 
   tor_assert(port != 0);
 
   if (addr && tor_addr_is_null(addr))
     addr = NULL; /* Unspec means 'no address at all,' in this context. */
 
-  if (addr && (tor_addr_is_internal(addr, 0) ||
-               tor_addr_is_loopback(addr)))
+  if (addr && get_options()->ClientRejectInternalAddresses &&
+      (tor_addr_is_internal(addr, 0) || tor_addr_is_loopback(addr)))
     return ADDR_POLICY_REJECTED;
 
   for (i=0; i < policy->n_entries; ++i) {