| /* Checking macros for unistd functions. |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 2, or (at your option) any later |
| version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| GCC 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 General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| /* As a special exception, if you link this library with files compiled with |
| GCC to produce an executable, this does not cause the resulting executable |
| to be covered by the GNU General Public License. This exception does not |
| however invalidate any other reasons why the executable file might be |
| covered by the GNU General Public License. */ |
| |
| #ifndef _SSP_UNISTD_H |
| #define _SSP_UNISTD_H 1 |
| |
| #include <ssp.h> |
| #include_next <unistd.h> |
| |
| #if __SSP_FORTIFY_LEVEL > 0 |
| |
| #undef read |
| #undef readlink |
| #undef getcwd |
| |
| extern ssize_t __SSP_REDIRECT (__read_alias, (int __fd, void *__buf, |
| size_t __nbytes), read); |
| |
| extern inline __attribute__((__always_inline__)) ssize_t |
| read (int __fd, void *__buf, size_t __nbytes) |
| { |
| if (__ssp_bos0 (__buf) != (size_t) -1 && __nbytes > __ssp_bos0 (__buf)) |
| __chk_fail (); |
| return __read_alias (__fd, __buf, __nbytes); |
| } |
| |
| extern int __SSP_REDIRECT (__readlink_alias, |
| (const char *__restrict__ __path, |
| char *__restrict__ __buf, size_t __len), |
| readlink); |
| |
| extern inline __attribute__((__always_inline__)) int |
| readlink (const char *__restrict__ __path, char *__restrict__ __buf, |
| size_t __len) |
| { |
| if (__ssp_bos (__buf) != (size_t) -1 && __len > __ssp_bos (__buf)) |
| __chk_fail (); |
| return __readlink_alias (__path, __buf, __len); |
| } |
| |
| extern char *__SSP_REDIRECT (__getcwd_alias, |
| (char *__buf, size_t __size), getcwd); |
| |
| extern inline __attribute__((__always_inline__)) char * |
| getcwd (char *__buf, size_t __size) |
| { |
| if (__ssp_bos (__buf) != (size_t) -1 && __size > __ssp_bos (__buf)) |
| __chk_fail (); |
| return __getcwd_alias (__buf, __size); |
| } |
| |
| #endif /* __SSP_FORTIFY_LEVEL > 0 */ |
| #endif /* _SSP_UNISTD_H */ |