commit fdcb2d1382b430565afbcd5dcfad829479c0bb7b Author: David Fifield david@bamsoftware.com Date: Fri Jul 6 04:43:57 2012 -0700

Use dummy address 0.0.1.0 in place of 0.0.0.0.

addr == 0 is used in at least one place to indicate that no IPv4 address is set. An example is circuitbuild.c:

int router_ipv6_preferred(const routerinfo_t *router) { return (!tor_addr_is_null(&router->ipv6_addr) && (router->ipv6_preferred || router->addr == 0)); }

This function can return true even if router->ipv6_preferred is false, causing the later erroneous output

[notice] Bridge 'xxx' has both an IPv4 and an IPv6 address. Will prefer using its IPv4 address (2600:<...>:9001).

The address 0.0.0.1 doesn't work; it causes this error message:

[warn] Proxy Client: unable to connect to 0.0.0.1:1 ("server rejected connection") --- README | 2 +- doc/design.txt | 2 +- torrc | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/README b/README index f26d0c5..68f4cfe 100644 --- a/README +++ b/README @@ -77,7 +77,7 @@ public instance of it. This way is not as realistic because all your Tor traffic will first go to a fixed address and can be easily blocked. However this is an easy way to try out the system without having to do port forwarding. - $ tor ClientTransportPlugin "websocket socks4 tor-facilitator.bamsoftware.com:9999" UseBridges 1 Bridge "websocket 0.0.0.0:1" LearnCircuitBuildTimeout 0 + $ tor ClientTransportPlugin "websocket socks4 tor-facilitator.bamsoftware.com:9999" UseBridges 1 Bridge "websocket 0.0.1.0:1" LearnCircuitBuildTimeout 0

== Troubleshooting diff --git a/doc/design.txt b/doc/design.txt index 5f58cc9..7f1e548 100644 --- a/doc/design.txt +++ b/doc/design.txt @@ -86,7 +86,7 @@ Design of flash proxies sufficient: ClientTransportPlugin websocket socks4 127.0.0.1:9001 UseBridges 1 - Bridge websocket 0.0.0.0:1 + Bridge websocket 0.0.1.0:1 LearnCircuitBuildTimeout 0 The address given for the "Bridge" option is actually irrelevant. The client transport plugin will ignore it and connect (through the flash diff --git a/torrc b/torrc index ec0b552..b04e174 100644 --- a/torrc +++ b/torrc @@ -6,5 +6,5 @@ ClientTransportPlugin websocket socks4 127.0.0.1:9001 UseBridges 1 # The address and port are ignored by the client transport plugin. -Bridge websocket 0.0.0.0:1 +Bridge websocket 0.0.1.0:1 LearnCircuitBuildTimeout 0