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cmd/ensdns: Replace LGPL header with GPL header

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This commit is contained in:
Nick Johnson 2016-12-16 08:55:04 +00:00
parent b952a1a508
commit bf934ca029
1 changed files with 23 additions and 8 deletions
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31
cmd/ensdns/main.go
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@ -1,18 +1,18 @@
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
@ -85,9 +85,24 @@ func (ed *ENSDNS) Handle(w dns.ResponseWriter, r *dns.Msg) {
if err != nil {
log.Printf("Error resolving query %v: %v", question, err)
m.Rcode = dns.RcodeServerFailure
break
}
// If no answer is found, and this wasn't a CNAME or * query, try looking for CNAMEs
if len(answers) == 0 && question.Qtype != dns.TypeCNAME && question.Qtype != dns.TypeANY {
question.Qtype = dns.TypeCNAME
answers, err = ed.resolve(question)
if err != nil {
log.Printf("Error resolving query %v: %v", question, err)
m.Rcode = dns.RcodeServerFailure
break
}
}
m.Answer = append(m.Answer, answers...)
m.Authoritative = true
}
w.WriteMsg(m)
}