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net: fix parsing literal IPv6 address with zone identifier when using cgo

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Parsing literal IPv6 address with zone identifier is already supported
when not using cgo. This change enables it when using cgo too.

Fixes #12241.

Change-Id: I3ed78c9e750e75eff0dae76ba8608df39503cf85
Reviewed-on: https://go-review.googlesource.com/17215
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Mikio Hara 2015-11-27 12:06:11 +09:00
parent d41d47306a
commit 8854bdbd76
5 changed files with 37 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/net/cgo_socknew.go
View File

@ -26,8 +26,8 @@ func cgoSockaddrInet4(ip IP) *C.struct_sockaddr {
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}
func cgoSockaddrInet6(ip IP) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet6{Family: syscall.AF_INET6}
func cgoSockaddrInet6(ip IP, zone int) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet6{Family: syscall.AF_INET6, Scope_id: uint32(zone)}
copy(sa.Addr[:], ip)
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}

4
src/net/cgo_sockold.go
View File

@ -26,8 +26,8 @@ func cgoSockaddrInet4(ip IP) *C.struct_sockaddr {
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}
func cgoSockaddrInet6(ip IP) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet6{Len: syscall.SizeofSockaddrInet6, Family: syscall.AF_INET6}
func cgoSockaddrInet6(ip IP, zone int) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet6{Len: syscall.SizeofSockaddrInet6, Family: syscall.AF_INET6, Scope_id: uint32(zone)}
copy(sa.Addr[:], ip)
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}

12
src/net/cgo_unix.go
View File

@ -186,11 +186,15 @@ func cgoLookupPTR(addr string) ([]string, error, bool) {
acquireThread()
defer releaseThread()
ip := ParseIP(addr)
var zone string
ip := parseIPv4(addr)
if ip == nil {
ip, zone = parseIPv6(addr, true)
}
if ip == nil {
return nil, &DNSError{Err: "invalid address", Name: addr}, true
}
sa, salen := cgoSockaddr(ip)
sa, salen := cgoSockaddr(ip, zone)
if sa == nil {
return nil, &DNSError{Err: "invalid address " + ip.String(), Name: addr}, true
}
@ -225,12 +229,12 @@ func cgoLookupPTR(addr string) ([]string, error, bool) {
return []string{absDomainName(b)}, nil, true
}
func cgoSockaddr(ip IP) (*C.struct_sockaddr, C.socklen_t) {
func cgoSockaddr(ip IP, zone string) (*C.struct_sockaddr, C.socklen_t) {
if ip4 := ip.To4(); ip4 != nil {
return cgoSockaddrInet4(ip4), C.socklen_t(syscall.SizeofSockaddrInet4)
}
if ip6 := ip.To16(); ip6 != nil {
return cgoSockaddrInet6(ip6), C.socklen_t(syscall.SizeofSockaddrInet6)
return cgoSockaddrInet6(ip6, zoneToInt(zone)), C.socklen_t(syscall.SizeofSockaddrInet6)
}
return nil, 0
}

24
src/net/lookup_test.go
View File

@ -209,6 +209,30 @@ func TestLookupGooglePublicDNSAddr(t *testing.T) {
}
}
func TestLookupIPv6LinkLocalAddr(t *testing.T) {
if !supportsIPv6 {
t.Skip("IPv6 is required")
}
addrs, err := LookupHost("localhost")
if err != nil {
t.Fatal(err)
}
found := false
for _, addr := range addrs {
if addr == "fe80::1%lo0" {
found = true
break
}
}
if !found {
t.Skipf("not supported on %s", runtime.GOOS)
}
if _, err := LookupAddr("fe80::1%lo0"); err != nil {
t.Error(err)
}
}
var lookupIANACNAMETests = []struct {
name, cname string
}{

3
src/net/testdata/hosts vendored
View File

@ -5,8 +5,7 @@
127.1.1.1 thor
# aliases
127.1.1.2 ullr ullrhost
fe80::1%lo0 localhost
# Bogus entries that must be ignored.
123.123.123 loki
321.321.321.321
# TODO(yvesj): Should we be able to parse this? From a Darwin system.
fe80::1%lo0 localhost