(Perl) DNS Query TXT Records

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

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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

$dns = chilkat::CkDns->new();

$json = chilkat::CkJsonObject->new();
$json->put_EmitCompact(0);

$success = $dns->Query("TXT","x.com",$json);
if ($success == 0) {
    print $dns->lastErrorText() . "\r\n";
    exit;
}

print $json->emit() . "\r\n";

# 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;
$count_i = $json->SizeOfArray("answer.txt");
while ($i < $count_i) {
    $json->put_I($i);
    $name = $json->stringOf("answer.txt[i].name");
    $ttl = $json->IntOf("answer.txt[i].ttl");
    $text = $json->stringOf("answer.txt[i].text");
    $i = $i + 1;
}