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/*
* Testing interface to fake write functions.
*
* This header defines the interfaces to fake write functions used to test
* error handling wrappers around system write functions.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Copyright 2000-2002, 2004, 2017, 2021 Russ Allbery <eagle@eyrie.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* SPDX-License-Identifier: MIT
*/
#ifndef TESTS_UTIL_FAKEWRITE_H
#define TESTS_UTIL_FAKEWRITE_H 1
#include <config.h>
#include <portable/macros.h>
#include <portable/stdbool.h>
#include <sys/types.h>
BEGIN_DECLS
/* Replacement functions called instead of C library calls. */
extern ssize_t fake_write(int, const void *, size_t);
extern ssize_t fake_pwrite(int, const void *, size_t, off_t);
extern ssize_t fake_writev(int, const struct iovec *, int);
/* The data written and how many bytes have been written. */
extern char write_buffer[256];
extern size_t write_offset;
/* If true, half the calls to write or writev will fail with EINTR. */
extern int write_interrupt;
/* If true, all write or writev calls will return 0. */
extern bool write_fail;
END_DECLS
#endif /* !TESTS_UTIL_FAKEWRITE_H */
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