| /* Copyright (C) 1995-2018 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/ptrace.h> |
| #include <sys/user.h> |
| #include <stdarg.h> |
| #include <signal.h> |
| |
| #include <sysdep.h> |
| #include <sys/syscall.h> |
| |
| 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 = INLINE_SYSCALL (ptrace, 4, request, pid, addr, data); |
| if (res >= 0 && request > 0 && request < 4) |
| { |
| __set_errno (0); |
| return ret; |
| } |
| |
| return res; |
| } |