# File lib/daemons/change_privilege.rb, line 4 4: def self.change_privilege(user, group=user) 5: puts "Changing process privilege to #{user}:#{group}" 6: 7: uid, gid = Process.euid, Process.egid 8: target_uid = Etc.getpwnam(user).uid 9: target_gid = Etc.getgrnam(group).gid 10: 11: if uid != target_uid || gid != target_gid 12: Process.initgroups(user, target_gid) 13: Process::GID.change_privilege(target_gid) 14: Process::UID.change_privilege(target_uid) 15: end 16: rescue Errno::EPERM => e 17: raise "Couldn't change user and group to #{user}:#{group}: #{e}" 18: end
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