Xbase++

DNS Query TXT Records

See more DNS Examples

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

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

Xbase++

LOCAL nSuccess
LOCAL oDns
LOCAL oJson
LOCAL cName
LOCAL nTtl
LOCAL cText
LOCAL i
LOCAL nCount_i

nSuccess := 0

oDns := CreateObject("Chilkat.Dns")

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

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

? oJson:Emit()

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

//  {
//    "answer": {
//      "txt": [
//        {
//          "name": "x.com",
//          "ttl": 300,
//          "text": "kkdl3qb3tcrmdhfsm803p67r0my0svs8"
//        },
//        {
//          "name": "x.com",
//          "ttl": 300,
//          "text": "v=spf1 ip4:199.16.156.128/26 ip4:199.59.150.64/26 include:_spf.google.com include:spf-008d0a01.pphosted.com -all"
//        },
//        {
//          "name": "x.com",
//          "ttl": 300,
//          "text": "google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g"
//        },
//        {
//          "name": "x.com",
//          "ttl": 300,
//          "text": "google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A"
//        }
//      ]
//    }
//  }

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

i := 0
nCount_i := oJson:SizeOfArray("answer.txt")
DO WHILE i < nCount_i
    oJson:I := i
    cName := oJson:StringOf("answer.txt[i].name")
    nTtl := oJson:IntOf("answer.txt[i].ttl")
    cText := oJson:StringOf("answer.txt[i].text")
    i := i + 1
ENDDO

oDns:destroy()
oJson:destroy()