Perl Requires Chilkat v9.5.0.96+

DNS Query A Records

See more DNS Examples

Shows how to perform a DNS query to retrieve A records. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $dns = Chilkat2::Dns->new;

my $json = Chilkat2::JsonObject->new;
$json->EmitCompact(0);

my $success = $dns->Query('A', 'microsoft.com', $json);
if (!$success) {
    print $dns->LastErrorText, "\n";
    exit;
}

print $json->Emit(), "\n";

# 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

my $name = '';
my $ttl = 0;
my $ipv4 = '';

my $i = 0;
my $count_i = $json->SizeOfArray('answer.a');
while ($i < $count_i) {
    $json->I($i);
    $name = $json->StringOf('answer.a[i].name');
    $ttl = $json->IntOf('answer.a[i].ttl');
    $ipv4 = $json->StringOf('answer.a[i].ipv4');
    $i = $i + 1;
}