/* Copyright (C) 1995, 1996, 1997, 1998 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/types.h> #include <sys/ptrace.h> #include <sys/syscall.h> #include <stdarg.h> #define __NR___syscall_ptrace __NR_ptrace static _syscall4(long, __syscall_ptrace, enum __ptrace_request, request, __kernel_pid_t, pid, void*, addr, void*, data); long int ptrace (enum __ptrace_request request, ...) { long int res, ret; va_list ap; pid_t pid; void *addr, *data; va_start (ap, request); pid = va_arg (ap, pid_t); addr = va_arg (ap, void *); data = va_arg (ap, void *); va_end (ap); if (request > 0 && request < 4) data = &ret; res = __syscall_ptrace(request, pid, addr, data); if (res >= 0 && request > 0 && request < 4) { __set_errno(0); return ret; } return res; }