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58 lines
1.1 KiB
C++
58 lines
1.1 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "lib/zlib/GunzipReader.hxx"
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#include "io/FileReader.hxx"
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#include "io/StdioOutputStream.hxx"
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#include "fs/NarrowPath.hxx"
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#include "util/PrintException.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 void
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Copy(OutputStream &dest, Reader &src)
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{
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while (true) {
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std::byte buffer[4096];
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std::size_t nbytes = src.Read(buffer);
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if (nbytes == 0)
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break;
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dest.Write(std::span{buffer}.first(nbytes));
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}
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}
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static void
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CopyGunzip(OutputStream &dest, Reader &_src)
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{
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GunzipReader src(_src);
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Copy(dest, src);
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}
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static void
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CopyGunzip(FILE *_dest, Path src_path)
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{
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StdioOutputStream dest(_dest);
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FileReader src(src_path);
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CopyGunzip(dest, src);
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}
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int
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main(int argc, [[maybe_unused]] char **argv)
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try {
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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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FromNarrowPath path = argv[1];
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CopyGunzip(stdout, path);
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return EXIT_SUCCESS;
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} catch (...) {
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PrintException(std::current_exception());
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return EXIT_FAILURE;
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}
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