mongoose/docs/c-api/http_server.h/mg_fu_fname_fn.md

title, decl_name, symbol_kind, signature

title	decl_name	symbol_kind	signature
mg_fu_fname_fn	mg_fu_fname_fn	typedef	typedef struct mg_str (*mg_fu_fname_fn)(struct mg_connection *nc, struct mg_str fname);

Callback prototype for mg_file_upload_handler().