projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 77008252 | 1 | /* Checking macros for unistd functions. |
| 8d9254fc | 2 | Copyright (C) 2005-2020 Free Software Foundation, Inc. |
| 77008252 JJ |
3 | |
| 4 | This file is part of GCC. | |
| 5 | ||
| 6 | GCC is free software; you can redistribute it and/or modify it under | |
| 7 | the terms of the GNU General Public License as published by the Free | |
| 748086b7 | 8 | Software Foundation; either version 3, or (at your option) any later |
| 77008252 JJ |
9 | version. |
| 10 | ||
| 11 | In addition to the permissions in the GNU General Public License, the | |
| 12 | Free Software Foundation gives you unlimited permission to link the | |
| 13 | compiled version of this file into combinations with other programs, | |
| 14 | and to distribute those combinations without any restriction coming | |
| 15 | from the use of this file. (The General Public License restrictions | |
| 16 | do apply in other respects; for example, they cover modification of | |
| 17 | the file, and distribution when not linked into a combine | |
| 18 | executable.) | |
| 19 | ||
| 20 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 22 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 23 | for more details. | |
| 24 | ||
| 748086b7 JJ |
25 | Under Section 7 of GPL version 3, you are granted additional |
| 26 | permissions described in the GCC Runtime Library Exception, version | |
| 27 | 3.1, as published by the Free Software Foundation. | |
| 28 | ||
| 29 | You should have received a copy of the GNU General Public License and | |
| 30 | a copy of the GCC Runtime Library Exception along with this program; | |
| 31 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 32 | <http://www.gnu.org/licenses/>. */ | |
| 77008252 | 33 | |
| 77008252 JJ |
34 | |
| 35 | #ifndef _SSP_UNISTD_H | |
| 36 | #define _SSP_UNISTD_H 1 | |
| 37 | ||
| 38 | #include <ssp.h> | |
| 39 | #include_next <unistd.h> | |
| 40 | ||
| 41 | #if __SSP_FORTIFY_LEVEL > 0 | |
| 42 | ||
| 43 | #undef read | |
| 44 | #undef readlink | |
| 45 | #undef getcwd | |
| 46 | ||
| 47 | extern ssize_t __SSP_REDIRECT (__read_alias, (int __fd, void *__buf, | |
| 48 | size_t __nbytes), read); | |
| 49 | ||
| 50 | extern inline __attribute__((__always_inline__)) ssize_t | |
| 51 | read (int __fd, void *__buf, size_t __nbytes) | |
| 52 | { | |
| 53 | if (__ssp_bos0 (__buf) != (size_t) -1 && __nbytes > __ssp_bos0 (__buf)) | |
| 54 | __chk_fail (); | |
| 55 | return __read_alias (__fd, __buf, __nbytes); | |
| 56 | } | |
| 57 | ||
| 58 | extern int __SSP_REDIRECT (__readlink_alias, | |
| 59 | (const char *__restrict__ __path, | |
| 60 | char *__restrict__ __buf, size_t __len), | |
| 61 | readlink); | |
| 62 | ||
| 63 | extern inline __attribute__((__always_inline__)) int | |
| 64 | readlink (const char *__restrict__ __path, char *__restrict__ __buf, | |
| 65 | size_t __len) | |
| 66 | { | |
| 67 | if (__ssp_bos (__buf) != (size_t) -1 && __len > __ssp_bos (__buf)) | |
| 68 | __chk_fail (); | |
| 69 | return __readlink_alias (__path, __buf, __len); | |
| 70 | } | |
| 71 | ||
| 72 | extern char *__SSP_REDIRECT (__getcwd_alias, | |
| 73 | (char *__buf, size_t __size), getcwd); | |
| 74 | ||
| 75 | extern inline __attribute__((__always_inline__)) char * | |
| 76 | getcwd (char *__buf, size_t __size) | |
| 77 | { | |
| 78 | if (__ssp_bos (__buf) != (size_t) -1 && __size > __ssp_bos (__buf)) | |
| 79 | __chk_fail (); | |
| 80 | return __getcwd_alias (__buf, __size); | |
| 81 | } | |
| 82 | ||
| 83 | #endif /* __SSP_FORTIFY_LEVEL > 0 */ | |
| 84 | #endif /* _SSP_UNISTD_H */ |