move from private r&d repo

include/utils.h

@@ -0,0 +1,24 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <stdlib.h>
+#include <stdio.h>
+
+struct curl_file_data {
+  FILE *file;
+  size_t size;
+};
+
+struct curl_response_data {
+  char *data;
+  size_t size;
+};
+
+// This callback assumes the userdata is `struct file_data`
+size_t curl_read_callback_file(void *ptr, size_t size, size_t nmemb, void *userdata);
+
+// This callback assumes that we are aggregating callback data into an allocated response_data struct
+size_t curl_write_callback_response(void *contents, size_t size, size_t nmemb,
+                             void *userp);
+
+#endif // UTILS_H