Remove MG_ENABLE_DIRLIST, add mg_http_serve_opts :: enable_dir_listing

src/http.h

@@ -32,8 +32,9 @@ struct mg_http_serve_opts {
   const char *mime_types;     // Additional MIME types: "ext1=type1,ext2=type2". NULL for defaults only
   const char *page404;        // Path to a custom 404 page, e.g. "/404.html". NULL for built-in
   struct mg_fs *fs;           // Filesystem to use. NULL defaults to POSIX
-  bool allow_delete;          // Allow to DELETE files
-  bool allow_upload;          // Allow to POST/PUT files
+  bool enable_delete;         // Allow to DELETE files
+  bool enable_upload;         // Allow to POST/PUT files
+  bool enable_dir_listing;    // Enable directory listing
 };
 
 // A single part of a multipart/form-data body, filled by mg_http_next_multipart().
@@ -107,10 +108,11 @@ struct mg_connection *mg_http_connect(struct mg_mgr *, const char *url,
 //   mg_http_listen(), mg_http_serve_file(), mg_http_reply(), mg_match()
 // Notes:
 //   Call from an MG_EV_HTTP_MSG handler. The uri in hm is mapped under
-//   opts->root_dir. Directory listing depends on MG_ENABLE_DIRLIST; SSI uses
-//   opts->ssi_pattern when configured. opts->allow_delete enables DELETE;
-//   opts->allow_upload enables POST/PUT, writing the whole body to a file -
-//   see mg_http_serve_upload() to also stream big uploads without buffering.
+//   opts->root_dir. opts->enable_dir_listing enables directory listing; SSI
+//   uses opts->ssi_pattern when configured. opts->enable_delete enables
+//   DELETE; opts->enable_upload enables POST/PUT, writing the whole body to
+//   a file - see mg_http_serve_upload() to also stream big uploads without
+//   buffering.
 void mg_http_serve_dir(struct mg_connection *, struct mg_http_message *hm,
                        const struct mg_http_serve_opts *);
 
@@ -122,7 +124,7 @@ void mg_http_serve_file(struct mg_connection *, struct mg_http_message *hm,
 // whole body. Optional companion to mg_http_serve_dir(): call this from
 // MG_EV_HTTP_HDRS with the same opts, and keep calling mg_http_serve_dir()
 // from MG_EV_HTTP_MSG as usual - it still handles uploads this function skips.
-// Does nothing unless opts->allow_upload is set, the method is POST or PUT,
+// Does nothing unless opts->enable_upload is set, the method is POST or PUT,
 // and Content-Length is known and big enough.
 void mg_http_serve_upload(struct mg_connection *, struct mg_http_message *hm,
                           const struct mg_http_serve_opts *);