[master] 9fa4d02 Add varnishtest support for OOB urgent messages and a test case execising that

[Martin Blix Grydeland]

commit 9fa4d02542fcb40b2154d382d397d75a8cefbeb3
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Fri Apr 10 14:02:15 2015 +0200

    Add varnishtest support for OOB urgent messages and a test case
    execising that

diff --git a/bin/varnishtest/tests/b00046.vtc b/bin/varnishtest/tests/b00046.vtc
new file mode 100644
index 0000000..95d64bb
--- /dev/null
+++ b/bin/varnishtest/tests/b00046.vtc
@@ -0,0 +1,33 @@
+varnishtest "Check that TCP OOB urgent data doesn't cause ill effects"
+
+server s1 {
+	rxreq
+	send_urgent " "
+	txresp
+	send_urgent " "
+	
+	rxreq
+	send_urgent " "
+	txresp
+	send_urgent " "
+} -start
+
+varnish v1 -vcl+backend {} -start
+
+client c1 {
+	delay 0.5
+	send_urgent " "
+	expect_close
+} -run
+
+client c1 {
+	send_urgent " "
+	txreq -url /1
+	send_urgent " "
+	rxresp
+	send_urgent " "
+	txreq -url /2
+	send_urgent " "
+	rxresp
+	send_urgent " "
+} -run
diff --git a/bin/varnishtest/vtc_http.c b/bin/varnishtest/vtc_http.c
index 2cd7ad7..93ddf4e 100644
--- a/bin/varnishtest/vtc_http.c
+++ b/bin/varnishtest/vtc_http.c
@@ -1026,6 +1026,28 @@ cmd_http_send_n(CMD_ARGS)
 }
 
 /**********************************************************************
+ * Send an OOB urgent message
+ */
+
+static void
+cmd_http_send_urgent(CMD_ARGS)
+{
+	struct http *hp;
+	int i;
+
+	(void)cmd;
+	(void)vl;
+	CAST_OBJ_NOTNULL(hp, priv, HTTP_MAGIC);
+	AN(av[1]);
+	AZ(av[2]);
+	vtc_dump(hp->vl, 4, "send_urgent", av[1], -1);
+	i = send(hp->fd, av[1], strlen(av[1]), MSG_OOB);
+	if (i != strlen(av[1]))
+		vtc_log(hp->vl, hp->fatal,
+		    "Write error in http_send_urgent(): %s", strerror(errno));
+}
+
+/**********************************************************************
  * Send a hex string
  */
 
@@ -1290,6 +1312,7 @@ static const struct cmds http_cmds[] = {
 	{ "expect",		cmd_http_expect },
 	{ "send",		cmd_http_send },
 	{ "send_n",		cmd_http_send_n },
+	{ "send_urgent",	cmd_http_send_urgent },
 	{ "sendhex",		cmd_http_sendhex },
 	{ "chunked",		cmd_http_chunked },
 	{ "chunkedlen",		cmd_http_chunkedlen },