77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
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/*
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* Copyright (C) 2003-2014 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "fs/io/GunzipReader.hxx"
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#include "fs/io/FileReader.hxx"
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#include "fs/io/StdioOutputStream.hxx"
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#include "util/Error.hxx"
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static bool
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Copy(OutputStream &dest, Reader &src, Error &error)
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{
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while (true) {
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char buffer[4096];
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size_t nbytes = src.Read(buffer, sizeof(buffer), error);
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if (nbytes == 0)
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return !error.IsDefined();
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if (!dest.Write(buffer, nbytes, error))
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return false;
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}
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}
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static bool
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CopyGunzip(OutputStream &dest, Reader &_src, Error &error)
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{
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GunzipReader src(_src, error);
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return src.IsDefined() && Copy(dest, src, error);
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}
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static bool
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CopyGunzip(FILE *_dest, Path src_path, Error &error)
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{
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StdioOutputStream dest(_dest);
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FileReader src(src_path, error);
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return src.IsDefined() && CopyGunzip(dest, src, error);
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}
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int
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main(int argc, gcc_unused char **argv)
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: run_gunzip PATH\n");
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return EXIT_FAILURE;
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}
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Path path = Path::FromFS(argv[1]);
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Error error;
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if (!CopyGunzip(stdout, path, error)) {
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fprintf(stderr, "%s\n", error.GetMessage());
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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