external/bsd/bind/dist/unit/atf-src/atf-run/user.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 extern "C" {
  31 #include <sys/types.h>
  32
  33 #include <pwd.h>
  34 #include <unistd.h>
  35
  36 #include "../atf-c/detail/user.h"
  37 }
  38
  39 #include <stdexcept>
  40 #include <string>
  41
  42 #include "../atf-c++/detail/sanity.hpp"
  43
  44 #include "user.hpp"
  45
  46 namespace impl = atf::atf_run;
  47 #define IMPL_NAME "atf::atf_run"
  48
  49 uid_t
  50 impl::euid(void)
  51 {
  52     return atf_user_euid();
  53 }
  54
  55 void
  56 impl::drop_privileges(const std::pair< int, int > ids)
  57 {
  58     if (::setgid(ids.second) == -1)
  59         throw std::runtime_error("Failed to drop group privileges");
  60     if (::setuid(ids.first) == -1)
  61         throw std::runtime_error("Failed to drop user privileges");
  62 }
  63
  64 std::pair< int, int >
  65 impl::get_user_ids(const std::string& user)
  66 {
  67     const struct passwd* pw = ::getpwnam(user.c_str());
  68     if (pw == NULL)
  69         throw std::runtime_error("Failed to get information for user " + user);
  70     return std::make_pair(pw->pw_uid, pw->pw_gid);
  71 }
  72
  73 bool
  74 impl::is_member_of_group(gid_t gid)
  75 {
  76     return atf_user_is_member_of_group(gid);
  77 }
  78
  79 bool
  80 impl::is_root(void)
  81 {
  82     return atf_user_is_root();
  83 }
  84
  85 bool
  86 impl::is_unprivileged(void)
  87 {
  88     return atf_user_is_unprivileged();
  89 }