Compare original vs encoded file sizes

huffman.c

@@ -140,9 +140,16 @@ int main(int argc, char *argv[])
 
 	if (decompress)
 		ret = decode_file(input, output);
-	else
+	else {
 		ret = encode_file(input, output);
 
+		long insize = get_file_size(input);
+		long outsize = get_file_size(output);
+
+		printf("Original file size: %ld bytes\n", insize);
+		printf("Huffman file size:  %ld bytes\n", outsize);
+	}
+
 	fclose(input);
 	fclose(output);
 	return ret;

tree.c

@@ -35,6 +35,8 @@ struct tree *create_tree(FILE *file)
 		if (c == EOF || c > MY_BUF-1)
 			break;
 
+		/* While theoretically these files *can* be supported, Huffman is meant
+		 * for text encoding/decoding, so we don't give a sh. */
 		if (c > MY_BUF-1 || c == EOF_CHAR) {
 			fprintf(stderr, "File not supported\n");
 			return NULL;