mpd/test/run_gzip.cxx
2014-08-07 19:38:25 +02:00

80 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/GzipOutputStream.hxx"
#include "fs/io/StdioOutputStream.hxx"
#include "util/Error.hxx"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static bool
Copy(OutputStream &dest, int src, Error &error)
{
while (true) {
char buffer[4096];
ssize_t nbytes = read(src, buffer, sizeof(buffer));
if (nbytes <= 0) {
if (nbytes < 0) {
error.SetErrno();
return false;
} else
return true;
}
if (!dest.Write(buffer, nbytes, error))
return false;
}
}
static bool
CopyGzip(OutputStream &_dest, int src, Error &error)
{
GzipOutputStream dest(_dest, error);
return dest.IsDefined() &&
Copy(dest, src, error) &&
dest.Flush(error);
}
static bool
CopyGzip(FILE *_dest, int src, Error &error)
{
StdioOutputStream dest(_dest);
return CopyGzip(dest, src, error);
}
int
main(int argc, gcc_unused char **argv)
{
if (argc != 1) {
fprintf(stderr, "Usage: run_gzip\n");
return EXIT_FAILURE;
}
Error error;
if (!CopyGzip(stdout, STDIN_FILENO, error)) {
fprintf(stderr, "%s\n", error.GetMessage());
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}