/*      $NetBSD: utils.h,v 1.3 2014/01/22 06:15:22 riastradh Exp $      */

/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 VNDCOMPRESS_UTILS_H
#define VNDCOMPRESS_UTILS_H

#include <sys/types.h>
#include <sys/cdefs.h>

/* XXX Seems to be missing from <stdio.h>...  */
int     snprintf_ss(char *restrict, size_t, const char *restrict, ...)
           __printflike(3, 4);
int     vsnprintf_ss(char *restrict, size_t, const char *restrict, va_list)
           __printflike(3, 0);

ssize_t read_block(int, void *, size_t);
ssize_t pread_block(int, void *, size_t, off_t);
void    err_ss(int, const char *) __dead;
void    errx_ss(int, const char *, ...) __printflike(2, 3) __dead;
void    warn_ss(const char *);
void    warnx_ss(const char *, ...) __printflike(1, 2);
void    vwarnx_ss(const char *, va_list) __printflike(1, 0);
void    block_signals(sigset_t *);
void    restore_sigmask(const sigset_t *);

#endif  /* VNDCOMPRESS_UTILS_H */