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Code Issues Releases Wiki Activity

Updated internal documentation

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This commit is contained in:
Bryan Roe
2022-10-05 00:03:07 -07:00
parent 9f4ef70b2e
commit f93610e022
5 changed files with 231 additions and 32 deletions
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24
modules/util-dns.js
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@@ -14,8 +14,17 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
//
// This module is used to query the DNS server address from the OS
//
function windows_dns()
{
//
// Reference for GetNetworkParams() can be found at:
// https://learn.microsoft.com/en-us/windows/win32/api/iphlpapi/nf-iphlpapi-getnetworkparams
//
var ret = [];
var ip = require('_GenericMarshal').CreateNativeProxy('Iphlpapi.dll');
ip.CreateMethod('GetNetworkParams');
@@ -31,12 +40,16 @@ function windows_dns()
do
{
ret.push(dnsList.Deref(require('_GenericMarshal').PointerSize, 16).toBuffer().toString());
} while ((dnsList = dnsList.Deref(0, require('_GenericMarshal').PointerSize).Deref().Deref(0, 48)).Val != 0);
} while ((dnsList = dnsList.Deref(0, require('_GenericMarshal').PointerSize).Deref().Deref(0, 48)).Val != 0); // Itereate the list
}
return (ret);
}
function linux_dns()
{
//
// The linux implementation will look for the dns address in /etc/resolve.conf
//
var child = require('child_process').execFile('/bin/sh', ['sh']);
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.on('data', function () { });
@@ -70,6 +83,9 @@ function linux_dns()
function macos_dns()
{
//
// macOS implementation will use the system utility scutil to fetch the dns address
//
var child = require('child_process').execFile('/bin/sh', ['sh']);
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.on('data', function () { });
@@ -108,13 +124,13 @@ switch (process.platform)
{
case 'linux':
case 'freebsd':
module.exports = linux_dns;
module.exports = linux_dns; // Linux and BSD will use /etc/resolve.conf
break;
case 'win32':
module.exports = windows_dns;
module.exports = windows_dns; // Windows will use Iphlpapi
break;
case 'darwin':
module.exports = macos_dns;
module.exports = macos_dns; // macOS will use scutil
break;
default:
module.exports = function () { return ([]); };