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// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "lib/zlib/GunzipReader.hxx"
#include "io/FileReader.hxx"
#include "io/StdioOutputStream.hxx"
#include "fs/NarrowPath.hxx"
#include "util/PrintException.hxx"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static void
Copy(OutputStream &dest, Reader &src)
{
while (true) {
std::byte buffer[4096];
std::size_t nbytes = src.Read(buffer);
if (nbytes == 0)
break;
dest.Write(std::span{buffer}.first(nbytes));
}
}
static void
CopyGunzip(OutputStream &dest, Reader &_src)
{
GunzipReader src(_src);
Copy(dest, src);
}
static void
CopyGunzip(FILE *_dest, Path src_path)
{
StdioOutputStream dest(_dest);
FileReader src(src_path);
CopyGunzip(dest, src);
}
int
main(int argc, [[maybe_unused]] char **argv)
try {
if (argc != 2) {
fprintf(stderr, "Usage: run_gunzip PATH\n");
return EXIT_FAILURE;
}
FromNarrowPath path = argv[1];
CopyGunzip(stdout, path);
return EXIT_SUCCESS;
} catch (...) {
PrintException(std::current_exception());
return EXIT_FAILURE;
}
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