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net: allow _ in names

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Enables lookup of _jabber._tcp.gmail.com's SRV record.

Fixes #1167.

R=r, r2
CC=golang-dev
https://golang.org/cl/2353043
This commit is contained in:
Russ Cox 2010-10-07 06:45:50 -04:00
parent 7eb13b95a3
commit 2408a4bbbd
1 changed files with 1 additions and 1 deletions
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2
src/pkg/net/dnsclient.go
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@ -207,7 +207,7 @@ func isDomainName(s string) bool {
switch {
default:
return false
case 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z':
case 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || c == '_':
ok = true
case '0' <= c && c <= '9':
// fine