diff -u -r ../iperf-3.0.3/src/iperf_api.c ./src/iperf_api.c
--- ../iperf-3.0.3/src/iperf_api.c	2014-03-26 19:06:38.000000000 +0100
+++ ./src/iperf_api.c	2014-06-16 08:51:00.128253488 +0200
@@ -2153,7 +2169,7 @@
 {
     int i;
     struct iperf_stream *sp;
-    char template[] = "/tmp/iperf3.XXXXXX";
+    char template[] = "@TERMUX_PREFIX@/tmp/iperf3.XXXXXX";
 
     h_errno = 0;