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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libssp/ssp/unistd.h | |
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Diffstat (limited to 'libssp/ssp/unistd.h')
-rw-r--r-- | libssp/ssp/unistd.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/libssp/ssp/unistd.h b/libssp/ssp/unistd.h new file mode 100644 index 000000000..343fe5034 --- /dev/null +++ b/libssp/ssp/unistd.h @@ -0,0 +1,84 @@ +/* Checking macros for unistd functions. + Copyright (C) 2005, 2009 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 3, 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. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + + +#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 */ |