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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* Copyright (C) 1995-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <sys/user.h>
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#include <stdarg.h>
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#include <signal.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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long int
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ptrace (enum __ptrace_request request, ...)
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{
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long int res, ret;
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va_list ap;
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pid_t pid;
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void *addr, *data;
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va_start (ap, request);
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pid = va_arg (ap, pid_t);
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addr = va_arg (ap, void *);
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data = va_arg (ap, void *);
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va_end (ap);
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if (request > 0 && request < 4)
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data = &ret;
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res = INLINE_SYSCALL (ptrace, 4, request, pid, addr, data);
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if (res >= 0 && request > 0 && request < 4)
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{
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__set_errno (0);
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return ret;
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}
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return res;
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}
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