include/ssp/unistd.h

   1 /*      $NetBSD: unistd.h,v 1.7 2015/06/25 18:41:03 joerg Exp $ */
   2
   3 /*-
   4  *
   5  * SPDX-License-Identifier: BSD-2-Clause
   6  *
   7  * Copyright (c) 2006 The NetBSD Foundation, Inc.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to The NetBSD Foundation
  11  * by Christos Zoulas.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34 #ifndef _SSP_UNISTD_H_
  35 #define _SSP_UNISTD_H_
  36
  37 #include <ssp/ssp.h>
  38
  39 #if __SSP_FORTIFY_LEVEL > 0
  40 __BEGIN_DECLS
  41
  42 #ifndef _FORTIFY_SOURCE_read
  43 #define _FORTIFY_SOURCE_read    read
  44 #endif
  45
  46 __ssp_inline size_t
  47 __ssp_gid_bos(const void *ptr)
  48 {
  49         size_t ptrsize = __ssp_bos(ptr);
  50
  51         if (ptrsize == (size_t)-1)
  52                 return (ptrsize);
  53
  54         return (ptrsize / sizeof(gid_t));
  55 }
  56
  57 __ssp_redirect_raw(int, getgrouplist, getgrouplist,
  58     (const char *__name, gid_t __base, gid_t *__buf, int *__lenp),
  59     (__name, __base, __buf, __lenp), 1, __ssp_gid_bos, *__lenp);
  60
  61 __ssp_redirect_raw(int, getgroups, getgroups, (int __len, gid_t *__buf),
  62     (__len, __buf), 1, __ssp_gid_bos, __len);
  63
  64 __ssp_redirect(int, getloginclass, (char *__buf, size_t __len),
  65     (__buf, __len));
  66
  67 __ssp_redirect(ssize_t, _FORTIFY_SOURCE_read, (int __fd, void *__buf,
  68     size_t __len), (__fd, __buf, __len));
  69 __ssp_redirect(ssize_t, pread, (int __fd, void *__buf, size_t __len,
  70     off_t __offset), (__fd, __buf, __len, __offset));
  71
  72 __ssp_redirect(ssize_t, readlink, (const char *__restrict __path, \
  73     char *__restrict __buf, size_t __len), (__path, __buf, __len));
  74 __ssp_redirect(ssize_t, readlinkat, (int __fd, const char *__restrict __path,
  75         char *__restrict __buf, size_t __len), (__fd, __path, __buf, __len));
  76
  77 __ssp_redirect_raw(char *, getcwd, getcwd, (char *__buf, size_t __len),
  78     (__buf, __len), __buf != 0, __ssp_bos, __len);
  79
  80 __ssp_redirect(int, getdomainname, (char *__buf, int __len), (__buf, __len));
  81 __ssp_redirect(int, getentropy, (void *__buf, size_t __len), (__buf, __len));
  82 __ssp_redirect(int, gethostname, (char *__buf, size_t __len), (__buf, __len));
  83 __ssp_redirect(int, getlogin_r, (char *__buf, size_t __len), (__buf, __len));
  84 __ssp_redirect(int, ttyname_r, (int __fd, char *__buf, size_t __len),
  85     (__fd, __buf, __len));
  86
  87 __END_DECLS
  88
  89 #endif /* __SSP_FORTIFY_LEVEL > 0 */
  90 #endif /* _SSP_UNISTD_H_ */