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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "fs/io/GunzipReader.hxx"
#include "fs/io/FileReader.hxx"
#include "fs/io/StdioOutputStream.hxx"
#include "util/Error.hxx"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static bool
Copy(OutputStream &dest, Reader &src, Error &error)
{
while (true) {
char buffer[4096];
size_t nbytes = src.Read(buffer, sizeof(buffer), error);
if (nbytes == 0)
return !error.IsDefined();
if (!dest.Write(buffer, nbytes, error))
return false;
}
}
static bool
CopyGunzip(OutputStream &dest, Reader &_src, Error &error)
{
GunzipReader src(_src, error);
return src.IsDefined() && Copy(dest, src, error);
}
static bool
CopyGunzip(FILE *_dest, Path src_path, Error &error)
{
StdioOutputStream dest(_dest);
FileReader src(src_path, error);
return src.IsDefined() && CopyGunzip(dest, src, error);
}
int
main(int argc, gcc_unused char **argv)
{
if (argc != 2) {
fprintf(stderr, "Usage: run_gunzip PATH\n");
return EXIT_FAILURE;
}
Path path = Path::FromFS(argv[1]);
Error error;
if (!CopyGunzip(stdout, path, error)) {
fprintf(stderr, "%s\n", error.GetMessage());
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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