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/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <sys/ptrace.h>
#include <sys/syscall.h>
int
ptrace (int request, int pid, int addr, int data)
{
long int ret;
long int res;
if (request > 0 && request < 4)
(long int *) data = &ret;
res = __syscall_ptrace (request, pid, addr, data);
if (res >= 0)
{
if (request > 0 && request < 4)
{
errno = 0;
return (ret);
}
return (int) res;
}
errno = -res;
return -1;
}
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