pdns/capabilities.hh

   1 /*
   2  * This file is part of PowerDNS or dnsdist.
   3  * Copyright -- PowerDNS.COM B.V. and its contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * In addition, for the avoidance of any doubt, permission is granted to
  10  * link this program with OpenSSL and to (re)distribute the binaries
  11  * produced as the result of such linking.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22 #pragma once
  23
  24 #include <set>
  25
  26 /* return true on success, false if support is not available or we don't
  27    have enough capabilities to drop our capabilities (I know),
  28    and throw on more unexpected errors.
  29 */
  30 bool dropCapabilities(std::set<std::string> capabilitiesToKeep = {});
  31 /* drop capabilities on setuid()/setgid() */
  32 bool dropCapabilitiesAfterSwitchingIDs();
  33 /* retain capabilities on setuid()/setgid() */
  34 bool keepCapabilitiesAfterSwitchingIDs();