From 38d2ba637ad0fdfb116b9cf1b2547ae6486c4f87 Mon Sep 17 00:00:00 2001
From: Charles Forsyth <charles.forsyth@gmail.com>
Date: Wed, 1 Apr 2015 23:47:56 +0100
Subject: issue 330: return headers for empty udp datagram

---
 emu/port/devip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'emu/port/devip.c')

diff --git a/emu/port/devip.c b/emu/port/devip.c
index 2df8338e..e7ff4def 100644
--- a/emu/port/devip.c
+++ b/emu/port/devip.c
@@ -594,7 +594,7 @@ ipread(Chan *ch, void *a, long n, vlong off)
 				error(Ebadarg);
 			p = a;
 			r = so_recv(c->sfd, p + c->headers, n - c->headers, p, c->headers);
-			if(r > 0)
+			if(r >= 0)
 				r += c->headers;
 		} else
 			r = so_recv(c->sfd, a, n, nil, 0);
-- 
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