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/*
* Force legacy printpath/umovestr using PR_SET_DUMPABLE.
*
* Copyright (c) 2017-2020 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <sys/prctl.h>
#ifdef PR_SET_DUMPABLE
# include <stdio.h>
# include <unistd.h>
# include "test_ucopy.h"
int
main(void)
{
if (!test_process_vm_readv())
perror_msg_and_skip("process_vm_readv");
/*
* Clearing dumpable flag disallows process_vm_readv.
* If the kernel does not contain commit
* 84d77d3f06e7e8dea057d10e8ec77ad71f721be3, then
* PTRACE_PEEKDATA remains allowed.
*/
if (prctl(PR_SET_DUMPABLE, 0))
perror_msg_and_skip("PR_SET_DUMPABLE 0");
if (!test_ptrace_peekdata())
perror_msg_and_skip("PTRACE_PEEKDATA");
test_printpath(sizeof(long) * 4);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("PR_SET_DUMPABLE")
#endif
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