Fixed header size calculation.

Previous calculation was incorrect, header size was always
negative (overflow) number.
New calculation takes into account full header size, including
the last empty line with linefeeds.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index b240e14a..3102b24f 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -3550,7 +3550,8 @@ MHD_connection_handle_idle (struct MHD_Connection *connection)
       if (0 == line[0])
       {
         connection->state = MHD_CONNECTION_HEADERS_RECEIVED;
-        connection->header_size = (size_t) (line - connection->read_buffer);
+        connection->header_size = (size_t) (connection->read_buffer
+                                            - connection->method);
         continue;
       }
       if (MHD_NO == process_header_line (connection,
@@ -3586,7 +3587,8 @@ MHD_connection_handle_idle (struct MHD_Connection *connection)
       if (0 == line[0])
       {
         connection->state = MHD_CONNECTION_HEADERS_RECEIVED;
-        connection->header_size = (size_t) (line - connection->read_buffer);
+        connection->header_size = (size_t) (connection->read_buffer
+                                            - connection->method);
         continue;
       }
       continue;