Visual FoxPro Requires Chilkat v9.5.0.96+

Resolve Domain to IP Address

See more DNS Examples

Demonstrates how to perform a DNS query to obtain A records for resolving a domain name to an IPv4 address. Visual FoxPro

LOCAL lnSuccess
LOCAL loDns
LOCAL loJson
LOCAL lcName
LOCAL lnTtl
LOCAL lcIpv4
LOCAL i
LOCAL lnCount_i

lnSuccess = 0

loDns = CreateObject('Chilkat.Dns')

loJson = CreateObject('Chilkat.JsonObject')
loJson.EmitCompact = 0

lnSuccess = loDns.Query("A","microsoft.com",loJson)
IF (lnSuccess = 0) THEN
    ? loDns.LastErrorText
    RELEASE loDns
    RELEASE loJson
    CANCEL
ENDIF

? loJson.Emit()

*  Sample response.
*  Parsing code below..

*  {
*    "answer": {
*      "a": [
*        {
*          "name": "microsoft.com",
*          "ttl": 1528,
*          "ipv4": "20.112.250.133"
*        },
*        {
*          "name": "microsoft.com",
*          "ttl": 1528,
*          "ipv4": "20.231.239.246"
*        },
*        {
*          "name": "microsoft.com",
*          "ttl": 1528,
*          "ipv4": "20.76.201.171"
*        },
*        {
*          "name": "microsoft.com",
*          "ttl": 1528,
*          "ipv4": "20.70.246.20"
*        },
*        {
*          "name": "microsoft.com",
*          "ttl": 1528,
*          "ipv4": "20.236.44.162"
*        }
*      ]
*    }
*  }

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

i = 0
lnCount_i = loJson.SizeOfArray("answer.a")
DO WHILE i < lnCount_i
    loJson.I = i
    lcName = loJson.StringOf("answer.a[i].name")
    lnTtl = loJson.IntOf("answer.a[i].ttl")
    lcIpv4 = loJson.StringOf("answer.a[i].ipv4")
    i = i + 1
ENDDO

RELEASE loDns
RELEASE loJson