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/* Checking macros for unistd functions. |
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Copyright (C) 2005-2021 Free Software Foundation, Inc. |
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|
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This file is part of GCC. |
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|
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GCC is free software; you can redistribute it and/or modify it under |
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the terms of the GNU General Public License as published by the Free |
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Software Foundation; either version 3, or (at your option) any later |
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version. |
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|
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In addition to the permissions in the GNU General Public License, the |
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Free Software Foundation gives you unlimited permission to link the |
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compiled version of this file into combinations with other programs, |
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and to distribute those combinations without any restriction coming |
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from the use of this file. (The General Public License restrictions |
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do apply in other respects; for example, they cover modification of |
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the file, and distribution when not linked into a combine |
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executable.) |
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|
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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for more details. |
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|
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Under Section 7 of GPL version 3, you are granted additional |
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permissions described in the GCC Runtime Library Exception, version |
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3.1, as published by the Free Software Foundation. |
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|
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You should have received a copy of the GNU General Public License and |
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a copy of the GCC Runtime Library Exception along with this program; |
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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<http://www.gnu.org/licenses/>. */ |
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|
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|
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#ifndef _SSP_UNISTD_H |
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#define _SSP_UNISTD_H 1 |
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|
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#include <ssp.h> |
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#include_next <unistd.h> |
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|
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#if __SSP_FORTIFY_LEVEL > 0 |
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|
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#undef read |
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#undef readlink |
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#undef getcwd |
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|
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extern ssize_t __SSP_REDIRECT (__read_alias, (int __fd, void *__buf, |
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size_t __nbytes), read); |
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|
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extern inline __attribute__((__always_inline__)) ssize_t |
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read (int __fd, void *__buf, size_t __nbytes) |
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{ |
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if (__ssp_bos0 (__buf) != (size_t) -1 && __nbytes > __ssp_bos0 (__buf)) |
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__chk_fail (); |
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return __read_alias (__fd, __buf, __nbytes); |
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} |
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|
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extern int __SSP_REDIRECT (__readlink_alias, |
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(const char *__restrict__ __path, |
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char *__restrict__ __buf, size_t __len), |
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readlink); |
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|
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extern inline __attribute__((__always_inline__)) int |
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readlink (const char *__restrict__ __path, char *__restrict__ __buf, |
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size_t __len) |
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{ |
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if (__ssp_bos (__buf) != (size_t) -1 && __len > __ssp_bos (__buf)) |
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__chk_fail (); |
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return __readlink_alias (__path, __buf, __len); |
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} |
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|
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extern char *__SSP_REDIRECT (__getcwd_alias, |
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(char *__buf, size_t __size), getcwd); |
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|
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extern inline __attribute__((__always_inline__)) char * |
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getcwd (char *__buf, size_t __size) |
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{ |
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if (__ssp_bos (__buf) != (size_t) -1 && __size > __ssp_bos (__buf)) |
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__chk_fail (); |
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return __getcwd_alias (__buf, __size); |
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} |
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|
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#endif /* __SSP_FORTIFY_LEVEL > 0 */ |
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#endif /* _SSP_UNISTD_H */ |
