41 lines
1.7 KiB
C++
41 lines
1.7 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// 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.
|
|
|
|
#ifndef CRASHPAD_UTIL_POSIX_DROP_PRIVILEGES_H_
|
|
#define CRASHPAD_UTIL_POSIX_DROP_PRIVILEGES_H_
|
|
|
|
namespace crashpad {
|
|
|
|
//! \brief Permanently drops privileges conferred by being a setuid or setgid
|
|
//! executable.
|
|
//!
|
|
//! The effective user ID and saved set-user ID are set to the real user ID,
|
|
//! negating any effects of being a setuid executable. The effective group ID
|
|
//! and saved set-group ID are set to the real group ID, negating any effects of
|
|
//! being a setgid executable. Because the saved set-user ID and saved set-group
|
|
//! ID are reset, there is no way to restore the prior privileges, and the drop
|
|
//! is permanent.
|
|
//!
|
|
//! This function drops privileges correctly when running setuid root and in
|
|
//! other circumstances, including when running setuid non-root. If the program
|
|
//! is not a setuid or setgid executable, this function has no effect.
|
|
//!
|
|
//! No changes are made to the supplementary group list, which is normally not
|
|
//! altered for setuid or setgid executables.
|
|
void DropPrivileges();
|
|
|
|
} // namespace crashpad
|
|
|
|
#endif // CRASHPAD_UTIL_POSIX_DROP_PRIVILEGES_H_
|