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[tor-commits] [tor/master] Bugfix: we don't want loopback/multicastaddress from _hack().



commit 92fc728d83b7d02e95aae65b1eb083597bec141d
Author: rl1987 <rl1987@xxxxxxxxxxxxxxxx>
Date:   Sun Feb 22 17:34:00 2015 +0200

    Bugfix: we don't want loopback/multicastaddress from _hack().
---
 src/common/address.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/common/address.c b/src/common/address.c
index e3c2521..3e26576 100644
--- a/src/common/address.c
+++ b/src/common/address.c
@@ -1542,8 +1542,16 @@ get_interface_address6_via_udp_socket_hack(int severity,
     goto err;
   }
 
-  tor_addr_from_sockaddr(addr, (struct sockaddr*)&my_addr, NULL);
-  r=0;
+ if (tor_addr_from_sockaddr(addr, (struct sockaddr*)&my_addr, NULL) == 0) {
+    if (tor_addr_is_loopback(addr) || tor_addr_is_multicast(addr)) {
+      log_fn(severity, LD_NET, "Address that we determined via UDP socket"
+                               " magic is unsuitable for public comms.");
+    }
+    else {
+      r=0;
+    }
+ }
+
  err:
   if (sock >= 0)
     tor_close_socket(sock);



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