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include/secure/_poll.h
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/* | |||||
* Copyright (C) 2008 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 | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _SYS_POLL_H_ | |||||
#error "You should not use <secure/_poll.h> directly; include <sys/poll.h> instead." | |||||
#endif | |||||
#ifndef _SECURE_POLL_H_ | |||||
#define _SECURE_POLL_H_ | |||||
#include <secure/security.h> | |||||
__BEGIN_DECLS | |||||
int __poll_chk(struct pollfd *, nfds_t, int, size_t); | |||||
int __poll_real(struct pollfd *, nfds_t, int) __RENAME(poll); | |||||
__errordecl(__poll_too_small_error, "poll: pollfd array smaller than fd count"); | |||||
int __ppoll_chk(struct pollfd *, nfds_t, const struct timespec *, const sigset_t *, size_t); | |||||
int __ppoll_real(struct pollfd *, nfds_t, const struct timespec *, const sigset_t *) __RENAME(ppoll); | |||||
__errordecl(__ppoll_too_small_error, "ppoll: pollfd array smaller than fd count"); | |||||
#if defined(__BSD_FORTIFY) | |||||
__FORTIFY_INLINE int | |||||
poll(struct pollfd *_fds, nfds_t _fd_count, int _timeout) | |||||
{ | |||||
size_t _bos = __bos(_fds); | |||||
#if defined(__clang__) | |||||
return (__poll_chk(_fds, _fd_count, _timeout, _bos)); | |||||
#else | |||||
if (_bos != __FORTIFY_UNKNOWN_SIZE) { | |||||
if (!__builtin_constant_p(_fd_count)) | |||||
return (__poll_chk(_fds, _fd_count, _timeout, _bos)); | |||||
else if (_bos / sizeof(*_fds) < _fd_count) | |||||
__poll_too_small_error(); | |||||
} | |||||
return (__poll_real(_fds, _fd_count, _timeout)); | |||||
#endif | |||||
} | |||||
#if __BSD_VISIBLE | |||||
__FORTIFY_INLINE int | |||||
ppoll(struct pollfd *_fds, nfds_t _fd_count, const struct timespec *_timeout, const sigset_t *_mask) | |||||
{ | |||||
size_t _bos = __bos(_fds); | |||||
#if defined(__clang__) | |||||
return (__ppoll_chk(_fds, _fd_count, _timeout, _mask, _bos)); | |||||
#else | |||||
if (_bos != __FORTIFY_UNKNOWN_SIZE) { | |||||
if (!__builtin_constant_p(_fd_count)) | |||||
return (__ppoll_chk(_fds, _fd_count, _timeout, _mask, _bos)); | |||||
else if (_bos / sizeof(*_fds) < _fd_count) | |||||
__ppoll_too_small_error(); | |||||
} | |||||
return (__ppoll_real(_fds, _fd_count, _timeout, _mask)); | |||||
#endif | |||||
} | |||||
#endif | |||||
#endif | |||||
__END_DECLS | |||||
#endif /* !_SECURE_POLL_H_ */ |