Support 'Proxy-Connection' header

See http://www.http-stats.com/Proxy-Connection

http_parser.c

@@ -97,6 +97,7 @@ static inline int message_complete_callback (http_parser *parser)
   return parser->on_message_complete(parser);
 }
 
+#define PROXY_CONNECTION "proxy-connection"
 #define CONNECTION "connection"
 #define CONTENT_LENGTH "content-length"
 #define TRANSFER_ENCODING "transfer-encoding"
@@ -218,6 +219,7 @@ enum header_states
   , h_CON
 
   , h_matching_connection
+  , h_matching_proxy_connection
   , h_matching_content_length
   , h_matching_transfer_encoding
 
@@ -953,6 +955,10 @@ size_t http_parser_execute (http_parser *parser,
             header_state = h_C;
             break;
 
+          case 'p':
+            header_state = h_matching_proxy_connection;
+            break;
+
           case 't':
             header_state = h_matching_transfer_encoding;
             break;
@@ -1010,6 +1016,18 @@ size_t http_parser_execute (http_parser *parser,
               }
               break;
 
+            /* proxy-connection */
+
+            case h_matching_proxy_connection:
+              index++;
+              if (index > sizeof(PROXY_CONNECTION)-1
+                  || c != PROXY_CONNECTION[index]) {
+                header_state = h_general;
+              } else if (index == sizeof(PROXY_CONNECTION)-2) {
+                header_state = h_connection;
+              }
+              break;
+
             /* content-length */
 
             case h_matching_content_length:

test.c

@@ -597,6 +597,31 @@ const struct message responses[] =
   ,.body= "these headers are from http://news.ycombinator.com/"
   }
 
+#define PROXY_CONNECTION 6
+, {.name="proxy connection"
+  ,.type= HTTP_RESPONSE
+  ,.raw= "HTTP/1.1 200 OK\r\n"
+         "Content-Type: text/html; charset=UTF-8\r\n"
+         "Content-Length: 11\r\n"
+         "Proxy-Connection: close\r\n"
+         "Date: Thu, 31 Dec 2009 20:55:48 +0000\r\n"
+         "\r\n"
+         "hello world"
+  ,.should_keep_alive= FALSE
+  ,.message_complete_on_eof= FALSE
+  ,.http_major= 1
+  ,.http_minor= 1
+  ,.status_code= 200
+  ,.num_headers= 4
+  ,.headers=
+    { {"Content-Type", "text/html; charset=UTF-8" }
+    , {"Content-Length", "11" }
+    , {"Proxy-Connection", "close" }
+    , {"Date", "Thu, 31 Dec 2009 20:55:48 +0000"}
+    }
+  ,.body= "hello world"
+  }
+
 , {.name= NULL } /* sentinel */
 };