diff -u -r libgd-2.2.3.old/src/gd_io_dp.c libgd-2.2.3/src/gd_io_dp.c
--- libgd-2.2.3.old/src/gd_io_dp.c	1969-12-31 19:00:00.000000000 -0500
+++ libgd-2.2.3/src/gd_io_dp.c	2016-10-15 15:49:04.478163658 -0400
@@ -276,7 +276,7 @@
 	if(remain >= len) {
 		rlen = len;
 	} else {
-		if(remain == 0) {
+		if(remain <= 0) {
 			/* 2.0.34: EOF is incorrect. We use 0 for
 			 * errors and EOF, just like fileGetbuf,
 			 * which is a simple fread() wrapper.