mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-09-12 16:46:33 -04:00
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
//
|
|
// Automated Testing Framework (atf)
|
|
//
|
|
// Copyright (c) 2007 The NetBSD Foundation, Inc.
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
// 1. Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// 2. Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
|
|
// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
|
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
|
|
// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
|
|
extern "C" {
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <limits.h>
|
|
#include <pwd.h>
|
|
#include <unistd.h>
|
|
}
|
|
|
|
#include <cassert>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
|
|
#include "user.hpp"
|
|
|
|
namespace impl = tools::user;
|
|
#define IMPL_NAME "tools::user"
|
|
|
|
uid_t
|
|
impl::euid(void)
|
|
{
|
|
return ::geteuid();
|
|
}
|
|
|
|
void
|
|
impl::drop_privileges(const std::pair< int, int > ids)
|
|
{
|
|
if (::setgid(ids.second) == -1)
|
|
throw std::runtime_error("Failed to drop group privileges");
|
|
if (::setuid(ids.first) == -1)
|
|
throw std::runtime_error("Failed to drop user privileges");
|
|
}
|
|
|
|
std::pair< int, int >
|
|
impl::get_user_ids(const std::string& user)
|
|
{
|
|
const struct passwd* pw = ::getpwnam(user.c_str());
|
|
if (pw == NULL)
|
|
throw std::runtime_error("Failed to get information for user " + user);
|
|
return std::make_pair(pw->pw_uid, pw->pw_gid);
|
|
}
|
|
|
|
bool
|
|
impl::is_member_of_group(gid_t gid)
|
|
{
|
|
static gid_t groups[NGROUPS_MAX];
|
|
static int ngroups = -1;
|
|
bool found;
|
|
int i;
|
|
|
|
if (ngroups == -1) {
|
|
ngroups = getgroups(NGROUPS_MAX, groups);
|
|
assert(ngroups >= 0);
|
|
}
|
|
|
|
found = false;
|
|
for (i = 0; !found && i < ngroups; i++)
|
|
if (groups[i] == gid)
|
|
found = true;
|
|
return found;
|
|
}
|
|
|
|
bool
|
|
impl::is_root(void)
|
|
{
|
|
return ::geteuid() == 0;
|
|
}
|
|
|
|
bool
|
|
impl::is_unprivileged(void)
|
|
{
|
|
return ::geteuid() != 0;
|
|
}
|