blob: c2f4f7692854c7b2c0901a922ec8e88716140cfe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
package main
import (
"fmt"
"io/ioutil"
"net"
"time"
)
const (
WHOIS_SERVER = /*"whois-servers.net"*/ "whois.cymru.com"
WHOIS_PORT = "43"
TIMEOUT = 30
RETRIES = 1
)
func main() {
domains := []string{"109.105.104.100", "123.123.123.123"}
res, err := whois(domains, WHOIS_SERVER)
if err != nil {
return
}
fmt.Println(res)
}
/* implements the whois protocal described at https://en.wikipedia.org/wiki/Whois#Protocol */
func whois(domains []string, server string) (answer string, err error) {
var conn net.Conn
for i := 0; i < RETRIES; i++ {
conn, err = net.DialTimeout("tcp", net.JoinHostPort(server, WHOIS_PORT), time.Second*TIMEOUT)
if err != nil {
return
}
}
defer conn.Close()
//conn.Write([]byte(" -p " + domain + "\r\n"))
conn.Write([]byte(" -p -o -f -u begin\r\n"))
for _, d := range domains {
conn.Write([]byte(d + "\r\n"))
}
conn.Write([]byte("end\r\n"))
buffer, err := ioutil.ReadAll(conn)
if err != nil {
return
}
answer = string(buffer[:])
return
}
|
