commit a60c1b437e8e77eee14ea91c280a4503a437a622 Author: George Kadianakis desnacked@riseup.net Date: Tue Jan 17 02:09:09 2012 +0200

pending_socks_cb: exit if getpeername() breaks.

Also, check the return value of socks_state_set_address(). --- src/network.c | 26 ++++++++++++++++++-------- 1 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/src/network.c b/src/network.c index 4137cad..b9bcbb0 100644 --- a/src/network.c +++ b/src/network.c @@ -945,15 +945,18 @@ pending_socks_cb(struct bufferevent *bev, short what, void *arg)

obfs_assert(!circ->is_flushing);

- /* Figure out where we actually connected to, and tell the socks client */ - if (getpeername(bufferevent_getfd(bev), sa, &slen) == 0) { - char *peername = printable_address(sa, slen); - socks_state_set_address(socks, sa); + if (getpeername(bufferevent_getfd(bev), sa, &slen) < 0) { + log_warn("%s: getpeername() failed.", __func__); + conn_free(down); + return; + } + + { /* We have to update our connection's peername. If it was an + FQDN SOCKS request, the current peername contains the FQDN + string, and we want to replace it with the actual IP address we + connected to. */

- /* We have to update our connection's peername. If it was an - FQDN SOCKS request, the current peername contains the FQDN - string, and we want to replace it with the actual IP address - we connected to. */ + char *peername = printable_address(sa, slen); if (down->peername) { log_debug("We connected to our SOCKS destination! " "Replacing peername '%s' with '%s'", @@ -962,6 +965,13 @@ pending_socks_cb(struct bufferevent *bev, short what, void *arg) } down->peername = peername; } + + if (socks_state_set_address(socks, sa) < 0) { + log_warn("%s: socks_state_set_address() failed.", __func__); + conn_free(down); + return; + } + socks_send_reply(socks, bufferevent_get_output(up->buffer), 0);

/* Switch to regular upstream behavior. */