http: Use null-terminated string for POST data

application/x-www-form-urlencoded-data is (or should be) always text, so
it is preferrable to define struct http_post member "data" as a null-
terminated string.

For applications already making this assumption, this change should now
remove the need for string duplication.

1 files changed, 2 insertions, 2 deletions

diff --git a/include/slweb/http.h b/include/slweb/http.h
index 7f5935a..a9c9751 100644
--- a/include/slweb/http.h
+++ b/include/slweb/http.h
@@ -25,8 +25,8 @@ struct http_payload
         struct http_post
         {
             bool expect_continue;
-            const void *data;
-            size_t n, nfiles, npairs;
+            const char *data;
+            size_t nfiles, npairs;
 
             const struct http_post_pair
             {