From 34b1341a61675a7fd8c9078a4d22556323b6ee92 Mon Sep 17 00:00:00 2001
From: ale <ale@incal.net>
Date: Sat, 21 Nov 2015 13:19:37 +0000
Subject: [PATCH] resolve hostnames passed in IPList flags
---
util/flag.go | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/util/flag.go b/util/flag.go
index d3c4c9e5..d736d0e4 100644
--- a/util/flag.go
+++ b/util/flag.go
@@ -18,11 +18,17 @@ func (l *ipList) String() string {
}
func (l *ipList) Set(value string) error {
- ip := net.ParseIP(value)
- if ip == nil {
- return fmt.Errorf("Unable to parse IP address \"%s\"", value)
+ if ip := net.ParseIP(value); ip != nil {
+ *l = append(*l, ip)
+ return nil
}
- *l = append(*l, ip)
+
+ // Value is not an IP address, try to resolve it.
+ ips, err := net.LookupIP(value)
+ if err != nil {
+ return fmt.Errorf("Unable to parse IP address \"%s\": %v", value, err)
+ }
+ *l = append(*l, ips...)
return nil
}
--
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