change recv to recvfrom

diff --git a/udp_lat.c b/udp_lat.c
index 3b47f8d0a0c3197d55b2503055b8f952b6ec479c..8b7e5619fc4552a15f70ab5d82209a21e4040a78 100644 (file)
--- a/udp_lat.c
+++ b/udp_lat.c
@@ -138,7 +138,9 @@ void *pong (__attribute__((unused)) void *arg)
         pthread_mutex_unlock (mutex);
 
         char buffer[MAXBUF] = { 0 };
-        if (recv (sock, buffer, MAXBUF, 0) == -1) {
+        struct sockaddr_in src = { 0 };
+        socklen_t alen = sizeof (src);
+        if (recvfrom (sock, buffer, MAXBUF, 0, (struct sockaddr *)&src, &alen) == -1) {
             fprintf (stderr, "pong error: recv_from (%d)\n", i);
             rc = 1;
             pthread_exit (NULL);