Xbase++

DNS Query SOA Records

See more DNS Examples

Shows how to perform a DNS query to retrieve SOA records.

Note: This example requires Chilkat v9.5.0.96 or later.

Xbase++

LOCAL nSuccess
LOCAL oDns
LOCAL oJson
LOCAL cName
LOCAL nTtl
LOCAL cMname
LOCAL cRname
LOCAL nSerial
LOCAL nRefresh
LOCAL nRetry
LOCAL nExpire
LOCAL nMinttl
LOCAL i
LOCAL nCount_i

nSuccess := 0

oDns := CreateObject("Chilkat.Dns")

oJson := CreateObject("Chilkat.JsonObject")
oJson:EmitCompact := 0

nSuccess := oDns:Query("SOA", "x.com", oJson)
IF (nSuccess == 0)
    ? oDns:LastErrorText
    oDns:destroy()
    oJson:destroy()
    RETURN
ENDIF

? oJson:Emit()

//  Sample response.
//  Parsing code below..

//  {
//    "answer": {
//      "soa": [
//        {
//          "name": "x.com",
//          "ttl": 1800,
//          "mname": "alexia.ns.cloudflare.com",
//          "rname": "dns.cloudflare.com",
//          "serial": -1971124188,
//          "refresh": 10000,
//          "retry": 2400,
//          "expire": 604800,
//          "minttl": 1800
//        }
//      ]
//    }
//  }

//  Use this online tool to generate parsing code from sample JSON: 
//  Generate Parsing Code from JSON

i := 0
nCount_i := oJson:SizeOfArray("answer.soa")
DO WHILE i < nCount_i
    oJson:I := i
    cName := oJson:StringOf("answer.soa[i].name")
    nTtl := oJson:IntOf("answer.soa[i].ttl")
    cMname := oJson:StringOf("answer.soa[i].mname")
    cRname := oJson:StringOf("answer.soa[i].rname")
    nSerial := oJson:IntOf("answer.soa[i].serial")
    nRefresh := oJson:IntOf("answer.soa[i].refresh")
    nRetry := oJson:IntOf("answer.soa[i].retry")
    nExpire := oJson:IntOf("answer.soa[i].expire")
    nMinttl := oJson:IntOf("answer.soa[i].minttl")
    i := i + 1
ENDDO

oDns:destroy()
oJson:destroy()