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# File 'lib/daemons/change_privilege.rb', line 4
def self.change_privilege(user, group=user)
puts "Changing process privilege to #{user}:#{group}"
uid, gid = Process.euid, Process.egid
target_uid = Etc.getpwnam(user).uid
target_gid = Etc.getgrnam(group).gid
if uid != target_uid || gid != target_gid
Process.initgroups(user, target_gid)
Process::GID.change_privilege(target_gid)
Process::UID.change_privilege(target_uid)
end
rescue Errno::EPERM => e
raise "Couldn't change user and group to #{user}:#{group}: #{e}"
end
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