本文整理匯總了Golang中github.com/miekg/dns.EDNS0_SUBNET.Address方法的典型用法代碼示例。如果您正苦於以下問題：Golang EDNS0_SUBNET.Address方法的具體用法？Golang EDNS0_SUBNET.Address怎麽用？Golang EDNS0_SUBNET.Address使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/miekg/dns.EDNS0_SUBNET的用法示例。
在下文中一共展示了EDNS0_SUBNET.Address方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: exchangeSubnet
func exchangeSubnet(c *C, name string, dnstype uint16, ip string) *dns.Msg {
msg := new(dns.Msg)
msg.SetQuestion(name, dnstype)
o := new(dns.OPT)
o.Hdr.Name = "."
o.Hdr.Rrtype = dns.TypeOPT
e := new(dns.EDNS0_SUBNET)
e.Code = dns.EDNS0SUBNET
e.SourceScope = 0
e.Address = net.ParseIP(ip)
e.Family = 1 // IP4
e.SourceNetmask = net.IPv4len * 8
o.Option = append(o.Option, e)
msg.Extra = append(msg.Extra, o)
c.Log("msg", msg)
return dorequest(c, msg)
}示例2: resolve
func resolve(server string, domain string, clientIp *string) ([]dns.RR, error) {
// queryType
var qtype uint16
qtype = dns.TypeA
// dnsServer
if !strings.HasSuffix(server, ":53") {
server += ":53"
}
domain = dns.Fqdn(domain)
msg := new(dns.Msg)
msg.SetQuestion(domain, qtype)
msg.RecursionDesired = true
if *clientIP != "" {
opt := new(dns.OPT)
opt.Hdr.Name = "."
opt.Hdr.Rrtype = dns.TypeOPT
e := new(dns.EDNS0_SUBNET)
e.Code = dns.EDNS0SUBNET
e.Family = 1 // ipv4
e.SourceNetmask = 32
e.SourceScope = 0
e.Address = net.ParseIP(*clientIP).To4()
opt.Option = append(opt.Option, e)
msg.Extra = []dns.RR{opt}
}
client := &dns.Client{
DialTimeout: 5 * time.Second,
ReadTimeout: 20 * time.Second,
WriteTimeout: 20 * time.Second,
}
resp, rtt, err := client.Exchange(msg, server)
return resp.Answer, err
}示例3: main
//.........這裏部分代碼省略.........
c.Net = "udp4"
}
if *six {
c.Net = "udp6"
}
}
m := new(dns.Msg)
m.MsgHdr.Authoritative = *aa
m.MsgHdr.AuthenticatedData = *ad
m.MsgHdr.CheckingDisabled = *cd
m.MsgHdr.RecursionDesired = *rd
m.Question = make([]dns.Question, 1)
if *dnssec || *nsid || *client != "" {
o := new(dns.OPT)
o.Hdr.Name = "."
o.Hdr.Rrtype = dns.TypeOPT
if *dnssec {
o.SetDo()
o.SetUDPSize(dns.DefaultMsgSize)
}
if *nsid {
e := new(dns.EDNS0_NSID)
e.Code = dns.EDNS0NSID
o.Option = append(o.Option, e)
// NSD will not return nsid when the udp message size is too small
o.SetUDPSize(dns.DefaultMsgSize)
}
if *client != "" {
e := new(dns.EDNS0_SUBNET)
e.Code = dns.EDNS0SUBNET
e.SourceScope = 0
e.Address = net.ParseIP(*client)
if e.Address == nil {
fmt.Fprintf(os.Stderr, "Failure to parse IP address: %s\n", *client)
return
}
e.Family = 1 // IP4
e.SourceNetmask = net.IPv4len * 8
if e.Address.To4() == nil {
e.Family = 2 // IP6
e.SourceNetmask = net.IPv6len * 8
}
o.Option = append(o.Option, e)
}
m.Extra = append(m.Extra, o)
}
for _, v := range qname {
if !*raw && strings.HasPrefix(v, "http://") {
v = v[7:]
if v[len(v)-1] == '/' {
v = v[:len(v)-1]
}
}
m.Question[0] = dns.Question{dns.Fqdn(v), qtype, qclass}
m.Id = dns.Id()
// Add tsig
if *tsig != "" {
if algo, name, secret, ok := tsigKeyParse(*tsig); ok {
m.SetTsig(name, algo, 300, time.Now().Unix())
c.TsigSecret = map[string]string{name: secret}
} else {
fmt.Fprintf(os.Stderr, "TSIG key data error\n")示例4: main
//.........這裏部分代碼省略.........
m.MsgHdr.RecursionDesired = *rd
m.Question = make([]dns.Question, 1)
m.Opcode = dns.OpcodeQuery
if op, ok := dns.StringToOpcode[strings.ToUpper(*opcode)]; ok {
m.Opcode = op
}
m.Rcode = dns.RcodeSuccess
if rc, ok := dns.StringToRcode[strings.ToUpper(*rcode)]; ok {
m.Rcode = rc
}
if *dnssec || *nsid || *client != "" {
o := new(dns.OPT)
o.Hdr.Name = "."
o.Hdr.Rrtype = dns.TypeOPT
if *dnssec {
o.SetDo()
o.SetUDPSize(dns.DefaultMsgSize)
}
if *nsid {
e := new(dns.EDNS0_NSID)
e.Code = dns.EDNS0NSID
o.Option = append(o.Option, e)
// NSD will not return nsid when the udp message size is too small
o.SetUDPSize(dns.DefaultMsgSize)
}
if *client != "" {
e := new(dns.EDNS0_SUBNET)
e.Code = dns.EDNS0SUBNET
if *clientdraftcode {
e.DraftOption = true
}
e.SourceScope = 0
e.Address = net.ParseIP(*client)
if e.Address == nil {
fmt.Fprintf(os.Stderr, "Failure to parse IP address: %s\n", *client)
return
}
e.Family = 1 // IP4
e.SourceNetmask = net.IPv4len * 8
if e.Address.To4() == nil {
e.Family = 2 // IP6
e.SourceNetmask = net.IPv6len * 8
}
o.Option = append(o.Option, e)
}
m.Extra = append(m.Extra, o)
}
if *tcp {
co := new(dns.Conn)
tcp := "tcp"
if *six {
tcp = "tcp6"
}
var err error
if co.Conn, err = net.DialTimeout(tcp, nameserver, 2*time.Second); err != nil {
fmt.Fprintf(os.Stderr, "Dialing "+nameserver+" failed: "+err.Error()+"\n")
return
}
defer co.Close()
qt := dns.TypeA
qc := uint16(dns.ClassINET)
for i, v := range qname {
if i < len(qtype) {
qt = qtype[i]
}示例5: findA
func findA(ednsModel *EDNSModel) string {
var domain_a string
var server string
if len(ednsModel.NS) != 0 {
server = ednsModel.NS[0]
} else if len(ednsModel.SOA) != 0 {
server = ednsModel.SOA[0]
} else {
server = OPEN_DNS_SERVER
}
if dns.IsFqdn(server) {
server = server[0 : len(server)-1]
}
if !strings.HasSuffix(server, ":53") {
server += ":53"
}
domain := dns.Fqdn(ednsModel.CName[len(ednsModel.CName)-1])
msg := new(dns.Msg)
msg.SetQuestion(domain, dns.TypeA)
msg.RecursionDesired = true
if ednsModel.ClientIP != "" {
opt := new(dns.OPT)
opt.Hdr.Name = "."
opt.Hdr.Rrtype = dns.TypeOPT
e := new(dns.EDNS0_SUBNET)
e.Code = dns.EDNS0SUBNET
e.Family = 1 // ipv4
e.SourceNetmask = 32
e.SourceScope = 0
e.Address = net.ParseIP(ednsModel.ClientIP).To4()
opt.Option = append(opt.Option, e)
msg.Extra = []dns.RR{opt}
}
client := &dns.Client{
DialTimeout: 5 * time.Second,
ReadTimeout: 20 * time.Second,
WriteTimeout: 20 * time.Second,
}
resp, rtt, err := client.Exchange(msg, server)
// fmt.Println(resp.Answer)
if err != nil {
fmt.Println(rtt, err) // 記錄日誌 rtt是查詢耗時
return ""
}
for i := len(resp.Answer) - 1; i >= 0; i-- {
switch resp.Answer[i].Header().Rrtype {
case dns.TypeA:
temp_a := resp.Answer[i].(*dns.A)
domain_a += fmt.Sprint(temp_a.A, ":", temp_a.Hdr.Ttl, ",")
break
case dns.TypeCNAME:
temp_cname := resp.Answer[i].(*dns.CNAME)
ednsModel.CName = append(ednsModel.CName, temp_cname.Target)
break
}
}
return domain_a
}