tests: added a passing test case for connecting to IPv6 addresses via cosockets.

t/058-tcp-socket.t

@@ -5,7 +5,7 @@ use Test::Nginx::Socket::Lua;
 
 repeat_each(2);
 
-plan tests => repeat_each() * 169;
+plan tests => repeat_each() * 172;
 
 our $HtmlDir = html_dir;
 
@@ -3220,3 +3220,77 @@ close: 1 nil
 lua socket tcp_nodelay
 [error]
 
+
+
+=== TEST 54: IPv6
+--- http_config
+    server_tokens off;
+
+    server {
+        listen [::1]:$TEST_NGINX_PORT;
+
+        location /foo {
+            content_by_lua 'ngx.say("foo")';
+            more_clear_headers Date;
+        }
+    }
+--- config
+    location /t {
+        #set $port 5000;
+        set $port $TEST_NGINX_SERVER_PORT;
+
+        content_by_lua '
+            local sock = ngx.socket.tcp()
+            local port = ngx.var.port
+            local ok, err = sock:connect("[::1]", port)
+            if not ok then
+                ngx.say("failed to connect: ", err)
+                return
+            end
+
+            ngx.say("connected: ", ok)
+
+            local req = "GET /foo HTTP/1.0\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n"
+            -- req = "OK"
+
+            local bytes, err = sock:send(req)
+            if not bytes then
+                ngx.say("failed to send request: ", err)
+                return
+            end
+
+            ngx.say("request sent: ", bytes)
+
+            while true do
+                local line, err, part = sock:receive()
+                if line then
+                    ngx.say("received: ", line)
+
+                else
+                    ngx.say("failed to receive a line: ", err, " [", part, "]")
+                    break
+                end
+            end
+
+            ok, err = sock:close()
+            ngx.say("close: ", ok, " ", err)
+        ';
+    }
+
+--- request
+GET /t
+--- response_body
+connected: 1
+request sent: 57
+received: HTTP/1.1 200 OK
+received: Server: nginx
+received: Content-Type: text/plain
+received: Content-Length: 4
+received: Connection: close
+received: 
+received: foo
+failed to receive a line: closed []
+close: 1 nil
+--- no_error_log
+[error]
+

util/build2.sh

@@ -19,6 +19,7 @@ force=$2
             #--without-http_referer_module \
 
 time ngx-build $force $version \
+            --with-ipv6 \
             --with-cc-opt="-I$PCRE_INC" \
             --with-http_realip_module \
         --with-http_ssl_module \