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