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/*-
* Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Pawel Jakub Dawidek under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 AUTHORS 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 AUTHORS 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 _AUDITDISTD_TRAIL_H_
#define _AUDITDISTD_TRAIL_H_
#include <stdbool.h>
#include <unistd.h> /* off_t */
#define TRAIL_IDENTICAL 0
#define TRAIL_RENAMED 1
#define TRAIL_OLDER 2
#define TRAIL_NEWER 3
struct trail;
struct trail *trail_new(const char *dirname, bool create);
void trail_free(struct trail *trail);
bool trail_is_not_terminated(const char *filename);
bool trail_is_crash_recovery(const char *filename);
void trail_start(struct trail *trail, const char *filename, off_t offset);
void trail_next(struct trail *trail);
void trail_close(struct trail *trail);
void trail_reset(struct trail *trail);
void trail_unlink(struct trail *trail, const char *filename);
bool trail_switch(struct trail *trail);
const char *trail_filename(const struct trail *trail);
int trail_filefd(const struct trail *trail);
int trail_dirfd(const struct trail *trail);
void trail_last(DIR *dirfp, char *filename, size_t filenamesize);
bool trail_validate_name(const char *srcname, const char *dstname);
int trail_name_compare(const char *name0, const char *name1);
#endif /* !_AUDITDISTD_TRAIL_H_ */
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