From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 29 Sep 2008 14:49:06 +0000 (+0200)
Subject: fix netlink handling
X-Git-Tag: v0.9.10~30
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c758fb28d1f82d9e96dc7ec6d8dd843a5ac9f504;p=thirdparty%2Fiw.git

fix netlink handling

The libnl documentation for nl_recvmsgs implies that it keeps reading
messages, but it only keeps parsing already received messages, which
in this case is a crucial difference.
---

diff --git a/iw.c b/iw.c
index 28a7b39..e6d7232 100644
--- a/iw.c
+++ b/iw.c
@@ -248,11 +248,14 @@ static int handle_cmd(struct nl80211_state *state,
 	if (err < 0)
 		goto out;
 
+	err = 1;
+
 	nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
 	nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, NULL);
 	nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
 
-	nl_recvmsgs(state->nl_handle, cb);
+	while (err > 0)
+		nl_recvmsgs(state->nl_handle, cb);
  out:
 	nl_cb_put(cb);
  out_free_msg: