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net: RFC 6724 address selection

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At least the most important parts, I think.

Fixes #10552

Change-Id: I1a03c5405bdbef337e0245d226e9247d3d067393
Reviewed-on: https://go-review.googlesource.com/12246
Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Brad Fitzpatrick 2015-07-15 17:02:06 -07:00
parent 29eb7d18ed
commit adb1e03013
3 changed files with 602 additions and 2 deletions
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5
src/net/dnsclient_unix.go
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@ -419,12 +419,12 @@ func goLookupIPFiles(name string) (addrs []IPAddr) {
addrs = append(addrs, addr)
}
}
sortByRFC6724(addrs)
return
}
// goLookupIP is the native Go implementation of LookupIP.
// Used only if cgoLookupIP refuses to handle the request
// (that is, only if cgoLookupIP is the stub in cgo_stub.go).
// The libc versions are in cgo_*.go.
func goLookupIP(name string) (addrs []IPAddr, err error) {
return goLookupIPOrder(name, hostLookupFilesDNS)
}
@ -458,6 +458,7 @@ func goLookupIPOrder(name string, order hostLookupOrder) (addrs []IPAddr, err er
}
addrs = append(addrs, addrRecordList(racer.rrs)...)
}
sortByRFC6724(addrs)
if len(addrs) == 0 {
if lastErr != nil {
return nil, lastErr