From 284c7a8020b664ecc6cb1f326af55325a46f7d3a Mon Sep 17 00:00:00 2001

From: Nathan Phillip Brink <binki@gentoo.org>

Date: Mon, 12 Sep 2011 23:25:09 +0000

Subject: [PATCH] Throttle almost everything (except PING, PONG, and certain QUIT messages) sent to the IRCd.

Fixes being killed for Excess Flooding on freenode by using the existing

fakelag mechanism. The existing fakelag works great but was just not hooked

into earlier.

---

 src/connection.c |   14 +++++++++++---

 1 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/connection.c b/src/connection.c

index c793e18..e226f92 100644

--- a/src/connection.c

+++ b/src/connection.c

@@ -23,6 +23,7 @@ static SSL_CTX *sslctx = NULL;

 static int ssl_cx_idx;

 static BIO *errbio = NULL;

 extern char *conf_ssl_certfile;

+static int cn_want_write(connection_t *cn);

 static int SSLize(connection_t *cn, int *nc);

 static SSL_CTX *SSL_init_context(void);

 /* SSH like trust management */

@@ -326,6 +327,11 @@ static int real_write_all(connection_t *cn)

 	return 0;

 }

+/*

+ * May only be used when writing to the client or when sending

+ * timing-sensitive data to the server (PONG, PING for lagtest, QUIT)

+ * because fakelag is not enforced.

+ */

 void write_line_fast(connection_t *cn, char *line)

 {

 	int r;

@@ -353,13 +359,15 @@ void write_line_fast(connection_t *cn, char *line)

 void write_lines(connection_t *cn, list_t *lines)

 {

 	list_append(cn->outgoing, lines);

-	real_write_all(cn);

+	if (cn_want_write(cn))

+		real_write_all(cn);

 }

 void write_line(connection_t *cn, char *line)

 {

 	list_add_last(cn->outgoing, bip_strdup(line));

-	real_write_all(cn);

+	if (cn_want_write(cn))

+		real_write_all(cn);

 }

 list_t *read_lines(connection_t *cn, int *error)

@@ -718,7 +726,7 @@ static int check_event_write(fd_set *fds, connection_t *cn, int *nc)

 /* token generation interval: 1200ms */

 #define TOKEN_INTERVAL 1200

-int cn_want_write(connection_t *cn)

+static int cn_want_write(connection_t *cn)

 {

 	if (cn->anti_flood) {

 		struct timeval tv;

-- 

1.7.3.4