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// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "test/util/posix_error.h"
#include "test/util/save_util.h"
namespace gvisor {
namespace testing {
PosixErrorOr<bool> IsRoot() {
uid_t ruid, euid, suid;
int rc = getresuid(&ruid, &euid, &suid);
MaybeSave();
if (rc < 0) {
return PosixError(errno, "getresuid");
}
if (ruid != 0 || euid != 0 || suid != 0) {
return false;
}
gid_t rgid, egid, sgid;
rc = getresgid(&rgid, &egid, &sgid);
MaybeSave();
if (rc < 0) {
return PosixError(errno, "getresgid");
}
if (rgid != 0 || egid != 0 || sgid != 0) {
return false;
}
return true;
}
} // namespace testing
} // namespace gvisor
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