52 lines
978 B
C
52 lines
978 B
C
/*
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* Force legacy printpath/umovestr using PR_SET_DUMPABLE.
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*
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* Copyright (c) 2017-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#ifdef HAVE_PRCTL
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# include <sys/prctl.h>
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#endif
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#if defined HAVE_PRCTL && defined PR_SET_DUMPABLE
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# include <stdio.h>
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# include <unistd.h>
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# include "test_ucopy.h"
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int
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main(void)
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{
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if (!test_process_vm_readv())
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perror_msg_and_skip("process_vm_readv");
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/*
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* Clearing dumpable flag disallows process_vm_readv.
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* If the kernel does not contain commit
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* 84d77d3f06e7e8dea057d10e8ec77ad71f721be3, then
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* PTRACE_PEEKDATA remains allowed.
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*/
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if (prctl(PR_SET_DUMPABLE, 0))
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perror_msg_and_skip("PR_SET_DUMPABLE 0");
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if (!test_ptrace_peekdata())
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perror_msg_and_skip("PTRACE_PEEKDATA");
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test_printpath(sizeof(long) * 4);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_SET_DUMPABLE")
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#endif
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