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lib/libc/secure/__FD_chk.c
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/*- | |||||
* Copyright (C) 2013 The Android Open Source Project | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* * Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* * Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in | |||||
* the documentation and/or other materials provided with the | |||||
* distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | |||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* bionic rev: eeb9f5e41662828989f3913d81ec23229a668434 | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#undef _FORTIFY_SOURCE | |||||
#include <sys/cdefs.h> | |||||
#include <sys/select.h> | |||||
#include <secure/security.h> | |||||
#include "secure/_select.h" | |||||
int | |||||
__FD_ISSET_chk(int fd, fd_set *set, size_t set_size) | |||||
{ | |||||
if (__predict_false(fd < 0)) | |||||
__fortify_chk_fail("FD_ISSET: file descriptor < 0"); | |||||
if (__predict_false(fd >= FD_SETSIZE)) | |||||
__fortify_chk_fail("FD_ISSET: file descriptor >= FD_SETSIZE"); | |||||
if (__predict_false(set_size < sizeof(fd_set))) | |||||
__fortify_chk_fail("FD_ISSET: set is too small"); | |||||
return (FD_ISSET(fd, set)); | |||||
} | |||||
void | |||||
__FD_CLR_chk(int fd, fd_set *set, size_t set_size) | |||||
{ | |||||
if (__predict_false(fd < 0)) | |||||
__fortify_chk_fail("FD_CLR: file descriptor < 0"); | |||||
if (__predict_false(fd >= FD_SETSIZE)) | |||||
__fortify_chk_fail("FD_CLR: file descriptor >= FD_SETSIZE"); | |||||
if (__predict_false(set_size < sizeof(fd_set))) | |||||
__fortify_chk_fail("FD_CLR: set is too small"); | |||||
FD_CLR(fd, set); | |||||
} | |||||
void | |||||
__FD_SET_chk(int fd, fd_set *set, size_t set_size) | |||||
{ | |||||
if (__predict_false(fd < 0)) | |||||
__fortify_chk_fail("FD_SET: file descriptor < 0"); | |||||
if (__predict_false(fd >= FD_SETSIZE)) | |||||
__fortify_chk_fail("FD_SET: file descriptor >= FD_SETSIZE"); | |||||
if (__predict_false(set_size < sizeof(fd_set))) | |||||
__fortify_chk_fail("FD_SET: set is too small"); | |||||
FD_SET(fd, set); | |||||
} |