platform_bionic/libc/bionic/__FD_chk.cpp
Elliott Hughes d1eda33f01 Avoid confusing "read prevented write" log messages.
Moving to a "function: message" style avoids ambiguity.

Change-Id: If9d590e50265c61725d3673bd03796e65edd2d5e
2013-10-15 16:49:28 -07:00

70 lines
2.7 KiB
C++

/*
* 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.
*/
#undef _FORTIFY_SOURCE
#include <sys/select.h>
#include "private/libc_logging.h"
extern "C" 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", 0);
}
if (__predict_false(fd >= FD_SETSIZE)) {
__fortify_chk_fail("FD_ISSET: file descriptor >= FD_SETSIZE", 0);
}
if (__predict_false(set_size < sizeof(fd_set))) {
__fortify_chk_fail("FD_ISSET: set is too small", 0);
}
return FD_ISSET(fd, set);
}
extern "C" 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", 0);
}
if (__predict_false(fd >= FD_SETSIZE)) {
__fortify_chk_fail("FD_CLR: file descriptor >= FD_SETSIZE", 0);
}
if (__predict_false(set_size < sizeof(fd_set))) {
__fortify_chk_fail("FD_CLR: set is too small", 0);
}
FD_CLR(fd, set);
}
extern "C" 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", 0);
}
if (__predict_false(fd >= FD_SETSIZE)) {
__fortify_chk_fail("FD_SET: file descriptor >= FD_SETSIZE", 0);
}
if (__predict_false(set_size < sizeof(fd_set))) {
__fortify_chk_fail("FD_SET: set is too small", 0);
}
FD_SET(fd, set);
}