error with file_get_contents and Amazon XML

[eluser]pdxbenjamin[/eluser]
I'm using CI to communicate with one of Amazon's web services...
This code works outside CI perfectly, but put into a CI view or controller, I get this error.

Any help would be appreciated.


$file = aws_signed_request($ext, $parameters, $public_key, $private_key);
$data = file_get_contents($file);

print_r($data);
die();


A PHP Error was encountered
Severity: Warning
Message: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Name or service not known

Filename: template/aws.php
Line Number: 42