77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
|
|
* Copyright (C) 2003-2014 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;
|
|
}
|