mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-05-08 20:22:55 +00:00
82f86e35d6
This new flag controls two things: - Whether the kernel will generate core dumps for the process - Whether the EUID:EGID should own the process's files in /proc Processes are automatically made non-dumpable when their EUID or EGID is changed, either via syscalls that specifically modify those ID's, or via sys$execve(), when a set-uid or set-gid program is executed. A process can change its own dumpable flag at any time by calling the new sys$prctl(PR_SET_DUMPABLE) syscall. Fixes #4504.
40 lines
1.6 KiB
C++
40 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
|
|
*/
|
|
|
|
#include <Kernel/API/Syscall.h>
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <sys/prctl.h>
|
|
|
|
extern "C" {
|
|
|
|
int prctl(int option, uintptr_t arg1, uintptr_t arg2)
|
|
{
|
|
int rc = syscall(SC_prctl, option, arg1, arg2);
|
|
__RETURN_WITH_ERRNO(rc, rc, -1);
|
|
}
|
|
}
|