From ba8ea0e685dcb7881ba346775f12277e298dcec0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Grubbstr=C3=B6m=20=28Grubba=29?=
<grubba@grubba.org>
Date: Sun, 7 May 2000 17:19:59 +0200
Subject: [PATCH] Improved handling of connection refused in do_sync_query().
Rev: lib/modules/Protocols.pmod/DNS.pmod:1.41
---
lib/modules/Protocols.pmod/DNS.pmod | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/lib/modules/Protocols.pmod/DNS.pmod b/lib/modules/Protocols.pmod/DNS.pmod
index 36d7e70e31..9295aa922a 100644
--- a/lib/modules/Protocols.pmod/DNS.pmod
+++ b/lib/modules/Protocols.pmod/DNS.pmod
@@ -563,13 +563,16 @@ class client
udp->send(nameservers[i % sizeof(nameservers)], 53, s);
while (udp->wait(RETRY_DELAY)) {
- m = udp->read();
- if ((m->port == 53) &&
- (m->data[0..1] == s[0..1]) &&
- (search(nameservers, m->ip) != -1)) {
- // Success.
- return decode_res(m->data);
- }
+ // udp->read() can throw an error on connection refused.
+ catch {
+ m = udp->read();
+ if ((m->port == 53) &&
+ (m->data[0..1] == s[0..1]) &&
+ (search(nameservers, m->ip) != -1)) {
+ // Success.
+ return decode_res(m->data);
+ }
+ };
}
}
// Failure.
--
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