4674e3899a
And remove the test for FD_ZERO fortification, which never made much sense anyway. Change-Id: Id1009c5298d461fa4722189e8ecaf22f0c529536
90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _POLL_H_
|
|
#define _POLL_H_
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <linux/poll.h>
|
|
#include <signal.h> /* For sigset_t. */
|
|
#include <time.h> /* For timespec. */
|
|
|
|
__BEGIN_DECLS
|
|
|
|
typedef unsigned int nfds_t;
|
|
|
|
int poll(struct pollfd*, nfds_t, int);
|
|
int ppoll(struct pollfd*, nfds_t, const struct timespec*, const sigset_t*);
|
|
|
|
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(__BIONIC_FORTIFY)
|
|
|
|
__BIONIC_FORTIFY_INLINE
|
|
int poll(struct pollfd* fds, nfds_t fd_count, int timeout) {
|
|
#if defined(__clang__)
|
|
return __poll_chk(fds, fd_count, timeout, __bos(fds));
|
|
#else
|
|
if (__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE) {
|
|
if (!__builtin_constant_p(fd_count)) {
|
|
return __poll_chk(fds, fd_count, timeout, __bos(fds));
|
|
} else if (__bos(fds) / sizeof(*fds) < fd_count) {
|
|
__poll_too_small_error();
|
|
}
|
|
}
|
|
return __poll_real(fds, fd_count, timeout);
|
|
#endif
|
|
}
|
|
|
|
__BIONIC_FORTIFY_INLINE
|
|
int ppoll(struct pollfd* fds, nfds_t fd_count, const struct timespec* timeout, const sigset_t* mask) {
|
|
#if defined(__clang__)
|
|
return __ppoll_chk(fds, fd_count, timeout, mask, __bos(fds));
|
|
#else
|
|
if (__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE) {
|
|
if (!__builtin_constant_p(fd_count)) {
|
|
return __ppoll_chk(fds, fd_count, timeout, mask, __bos(fds));
|
|
} else if (__bos(fds) / sizeof(*fds) < fd_count) {
|
|
__ppoll_too_small_error();
|
|
}
|
|
}
|
|
return __ppoll_real(fds, fd_count, timeout, mask);
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _POLL_H_ */
|