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Munin::Node::OS.3pm
Langue: en
Version: 2010-07-08 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
Munin::Node::OS - OS related utility methods for the munin node.SYNOPSIS
use Munin::Node::OS; my $uid = Munin::Node::OS->get_uid('foo'); my $host = Munin::Node::OS->get_fq_hostname();
METHODS
- get_uid
-
$uid = $class->get_uid($user)
Returns the user ID. $user might either be a user name or a user ID. Returns undef if the user is nonexistent.
- get_gid
-
$gid = $class->get_gid($group)
Returns the group ID. $group might either be a group name or a group ID. Returns undef if the group is nonexistent.
- get_fq_hostname
-
$host = $class->get_fq_hostname()
Returns the fully qualified host name of the machine.
- check_perms
-
$bool = $class->check_perms($target);
If paranoia is enabled, returns false unless $target is owned by root, and has safe permissions. If $target is a file, also checks the directory it inhabits.
- run_as_child
-
$result = run_as_child($timeout, $coderef, @arguments);
Creates a child process to run $code and waits for up to $timeout seconds for it to complete. Returns a hashref containg the following keys:
-
- stdout, stderr
- Array references containing the output of these filehandles;
- retval
- The result of wait();
- timed_out
- True if the child had to be interrupted.
System errors will cause it to carp.
-
- reap_child_group
-
$class->reap_child_group($pid);
Sends SIGHUP and SIGKILL to the process group identified by $pid.
Sleeps for 2 seconds between SIGHUP and SIGKILL.
- possible_to_signal_process
-
my $bool = $class->possible_to_signal_process($pid)
Check whether itaXXs possible to send a signal to $pid (that means, to be brief, that the process is owned by the same user, or we are the super-user). This is a useful way to check that a child process is alive (even if only as a zombie) and hasnaXXt changed its UID.
- set_effective_user_id
-
eval { $class->set_effective_user_id($uid); }; if ($@) { # Failed to set EUID }
The name says it all ...
- set_effective_group_id
- See documentation for set_effective_user_id()
- set_real_user_id
- See documentation for set_effective_user_id()
- set_real_group_id
- See documentation for set_effective_user_id()
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre