//
//	tardy - a tar post-processor
//	Copyright (C) 1998, 1999, 2003 Peter Miller;
//	All rights reserved.
//
//	This program is free software; you can redistribute it and/or modify
//	it under the terms of the GNU General Public License as published by
//	the Free Software Foundation; either version 2 of the License, or
//	(at your option) any later version.
//
//	This program is distributed in the hope that it will be useful,
//	but WITHOUT ANY WARRANTY; without even the implied warranty of
//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//	GNU General Public License for more details.
//
//	You should have received a copy of the GNU General Public License
//	along with this program; if not, write to the Free Software
//	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
//
// MANIFEST: functions to manipulate file output normals
//

#include <ac/fcntl.h>
#include <ac/unistd.h>
#include <file/output/normal.h>


file_output_normal::~file_output_normal()
{
    if (fd >= 0 && ::close(fd))
	nfatal("close");
}


file_output_normal::file_output_normal(const char *arg) :
    fn(arg),
    fd(-1)
{
    fd = ::creat(arg, 0666);
    if (fd < 0)
	nfatal("open");
}


file_output_normal::file_output_normal(const file_output_normal &arg) :
    fn(arg.fn),
    fd(-1)
{
    fd = dup(arg.fd);
    if (fd < 0)
	nfatal("dup");
}


file_output_normal &
file_output_normal::operator = (const file_output_normal &arg)
{
    if (&arg != this)
    {
	if (fd >= 0)
	    ::close(fd);
	fn = arg.fn;
	fd = dup(arg.fd);
	if (fd < 0)
	    nfatal("dup");
    }
    return *this;
}


void
file_output_normal::write(const void *buffer, int nbytes)
{
    int count = ::write(fd, buffer, nbytes);
    if (count < 0)
	nfatal("write");
    if (count != nbytes)
	fatal("short write (gave %d, got %d)", nbytes, count);
}

const char *
file_output_normal::filename()
    const
{
    return fn;
}