Unable to unload Launch Daemon using Cocoa Application.

FROM : JanakiRam
DATE : Sat Mar 22 17:03:31 2008

Hi All,

      I'm developing a cocoa application which needs to unload my Launch
Daemon for one particular requirement. I've used Authorization Services to
perform unload of Launch Daemon ( previlaged action ). But couldn't succeed
in this. I'm getting the following error on executed  my code.

*Output :*
**
*lauchctl : Error in unloading mydaemon*
**
*Note :* Attaching my code snippet for your reference.

          Please help me to solve this problem. Thanks in Advance.

-JanakiRam

*Code Snippet :*
**
*- (void) UnloadDaemon
{
    // setup our authorization environment.
    AuthorizationItem authItems[1];  // we only want to get authorization
for one command
    BOOL authorized = NO;  // are we authorized?
    char *args[4];

    char *command = "/bin/launchctl";

    authItems[0].name = kAuthorizationRightExecute; // we want the right to
execute
    authItems[0].value = command;  // the path to the startup script
    authItems[0].valueLength = strlen(command); // length of the command
    authItems[0].flags = 0;    // no extra flags

    authRights.count = 1;  // we have one item
    authRights.items = authItems; // here is the values for our item

    authFlags = kAuthorizationFlagInteractionAllowed |
kAuthorizationFlagExtendRights;

    // lets find out if we are authorized

    ourStatus = AuthorizationCopyRights(authorizationRef,&authRights,
                kAuthorizationEmptyEnvironment, authFlags, NULL);

    authorized = (errAuthorizationSuccess==ourStatus);

    if (authorized)
    {
        // we are authorized, so let's tell the security framework to
execute
        // our command as root
  args[0] = "unload";
        args[1] = "-w";
  args[2] = "/Library/LaunchDaemons/org.mycompany.launchdaemon.plist";
  args[3] = NULL;

        ourStatus = AuthorizationExecuteWithPrivileges(authorizationRef,
                                            command,
                                            kAuthorizationFlagDefaults,
args, NULL);

        if(ourStatus != errAuthorizationSuccess)
        {
            NSLog(@"unload has failed");
        }
    }
    else
    {
      NSLog(@"error in authentication");
    }
}*