--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/decode.cpp	Mon Jan 04 13:52:42 2021 -0500
@@ -0,0 +1,34 @@
+// requires libcurl
+#include <curl/curl.h>
+#include <iostream>
+#include <string.h>
+#include <fstream>
+
+int main(int argc, char *argv[]){
+	if(argc != 3){
+		std::cout << "usage: " << argv[0] << " <input> <output>";
+		return 0;
+	}
+	std::string encoded;
+	CURL *curl = curl_easy_init();
+	char somedata[256];
+	std::ifstream in(argv[1], std::ios::in | std::ios::binary);
+	if (in)
+	{
+		in.seekg(0, std::ios::end);
+		encoded.resize(in.tellg());
+		in.seekg(0, std::ios::beg);
+		in.read(&encoded[0], encoded.size());
+		in.close();
+	}
+	int outlength;
+    char *cres = curl_easy_unescape(curl, encoded.c_str(), encoded.length(), &outlength);
+    std::string res(cres, cres + outlength);
+    curl_free(cres);
+    curl_easy_cleanup(curl);
+	std::ofstream myfile2;
+	myfile2.open(argv[2]);
+	myfile2 << res;
+	myfile2.close();
+	return 0;
+}