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// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "io/FileOutputStream.hxx"
#include "fs/NarrowPath.hxx"
#include "util/PrintException.hxx"
#include <cerrno>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
static bool
Copy(OutputStream &dest, int src)
{
while (true) {
std::byte buffer[8192];
ssize_t nbytes = read(src, buffer, sizeof(buffer));
if (nbytes < 0) {
fprintf(stderr, "Failed to read from stdin: %s\n",
strerror(errno));
return false;
}
if (nbytes == 0)
return true;
dest.Write(std::span{buffer}.first(nbytes));
}
}
int
main(int argc, char **argv)
try {
if (argc != 2) {
fprintf(stderr, "Usage: WriteFile PATH\n");
return EXIT_FAILURE;
}
const FromNarrowPath path = argv[1];
FileOutputStream fos(path);
if (!Copy(fos, STDIN_FILENO))
return EXIT_FAILURE;
fos.Commit();
return EXIT_SUCCESS;
} catch (...) {
PrintException(std::current_exception());
return EXIT_FAILURE;
}
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