crashpad/util/posix/drop_privileges.h
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

41 lines
1.7 KiB
C++

// Copyright 2014 The Crashpad 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.
#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_