in_http: fix parser memory reinitialization

This fixes the reinitialization of the parser with the size
of the parser structure instead of the size of a pointer.

The original code appeared to be a typo and prevented the build
for Windows with this plugin.

Additionally, it enables the http input plugin plugin in Windows.

Note: this is a backport of #7407

Signed-off-by: Shing Tsoi <[email protected]>

cmake/windows-setup.cmake

@@ -26,7 +26,7 @@ if(FLB_WINDOWS_DEFAULTS)
   set(FLB_IN_EXEC_WASI           No)
   set(FLB_IN_FORWARD            Yes)
   set(FLB_IN_HEALTH              No)
-  set(FLB_IN_HTTP                No)
+  set(FLB_IN_HTTP               Yes)
   set(FLB_IN_MEM                 No)
   set(FLB_IN_KMSG                No)
   set(FLB_IN_LIB                Yes)

plugins/in_http/http_conn.c

@@ -134,7 +134,7 @@ static int http_conn_event(void *data)
                  * handled, the additional memset intends to wipe any left over data
                  * from the headers parsed in the previous request.
                  */
-                memset(&conn->session.parser, 0, sizeof(mk_http_parser));
+                memset(&conn->session.parser, 0, sizeof(struct mk_http_parser));
                 mk_http_parser_init(&conn->session.parser);
                 http_conn_request_init(&conn->session, &conn->request);
             }
@@ -146,7 +146,7 @@ static int http_conn_event(void *data)
              * handled, the additional memset intends to wipe any left over data
              * from the headers parsed in the previous request.
              */
-            memset(&conn->session.parser, 0, sizeof(mk_http_parser));
+            memset(&conn->session.parser, 0, sizeof(struct mk_http_parser));
             mk_http_parser_init(&conn->session.parser);
             http_conn_request_init(&conn->session, &conn->request);
         }