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 } 90