From: W.C.A. Wijngaards <wouter@nlnetlabs.nl>
Date: Mon, 20 Jan 2014 15:20:55 +0000 (+0100)
Subject: Fixed testns infinite loop on closed TCP channels.
X-Git-Tag: release-1.7.0-rc1~183^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7040d111b50018bc2823ed050554d691b1230f64;p=thirdparty%2Fldns.git

Fixed testns infinite loop on closed TCP channels.
---

diff --git a/examples/ldns-testns.c b/examples/ldns-testns.c
index f9732faa..05c28e1c 100644
--- a/examples/ldns-testns.c
+++ b/examples/ldns-testns.c
@@ -280,6 +280,10 @@ read_n_bytes(int sock, uint8_t* buf, size_t sz)
 		if(nb < 0) {
 			log_msg("recv(): %s\n", strerror(errno));
 			return;
+		} else if(nb == 0) {
+			log_msg("recv: remote end closed the channel\n");
+			memset(buf+count, 0, sz-count);
+			return;
 		}
 		count += nb;
 	}