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Improve: simple dns prefetch

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This commit is contained in:
Dreamacro
2018-06-11 18:36:39 +08:00
parent 4f192ef575
commit 4f769debe7
8 changed files with 30 additions and 21 deletions
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10
proxy/socks.go
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@@ -65,22 +65,28 @@ func (s *SocksAdapter) Addr() *constant.Addr {
func parseSocksAddr(target socks.Addr) *constant.Addr {
var host, port string
var ip net.IP
switch target[0] {
case socks.AtypDomainName:
host = string(target[2 : 2+target[1]])
port = strconv.Itoa((int(target[2+target[1]]) << 8) | int(target[2+target[1]+1]))
ipAddr, err := net.ResolveIPAddr("ip", host)
if err == nil {
ip = ipAddr.IP
}
case socks.AtypIPv4:
host = net.IP(target[1 : 1+net.IPv4len]).String()
ip = net.IP(target[1 : 1+net.IPv4len])
port = strconv.Itoa((int(target[1+net.IPv4len]) << 8) | int(target[1+net.IPv4len+1]))
case socks.AtypIPv6:
host = net.IP(target[1 : 1+net.IPv6len]).String()
ip = net.IP(target[1 : 1+net.IPv6len])
port = strconv.Itoa((int(target[1+net.IPv6len]) << 8) | int(target[1+net.IPv6len+1]))
}
return &constant.Addr{
AddrType: int(target[0]),
Host: host,
IP: &ip,
Port: port,
}
}