82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
/*
|
|
* Copyright 2003-2021 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 "ModCommon.hxx"
|
|
#include "Log.hxx"
|
|
|
|
static constexpr size_t MOD_PREALLOC_BLOCK = 256 * 1024;
|
|
static constexpr offset_type MOD_FILE_LIMIT = 100 * 1024 * 1024;
|
|
|
|
AllocatedArray<std::byte>
|
|
mod_loadfile(const Domain *domain, DecoderClient *client, InputStream &is)
|
|
{
|
|
//known/unknown size, preallocate array, lets read in chunks
|
|
|
|
const bool is_stream = !is.KnownSize();
|
|
size_t buffer_size;
|
|
|
|
if (is_stream)
|
|
buffer_size = MOD_PREALLOC_BLOCK;
|
|
else {
|
|
const auto size = is.GetSize();
|
|
|
|
if (size == 0) {
|
|
LogWarning(*domain, "file is empty");
|
|
return nullptr;
|
|
}
|
|
|
|
if (size > MOD_FILE_LIMIT) {
|
|
LogWarning(*domain, "file too large");
|
|
return nullptr;
|
|
}
|
|
|
|
buffer_size = size;
|
|
}
|
|
|
|
auto buffer = AllocatedArray<std::byte>(buffer_size);
|
|
|
|
std::byte *const end = buffer.end();
|
|
std::byte *p = buffer.begin();
|
|
|
|
while (true) {
|
|
size_t ret = decoder_read(client, is, p, end - p);
|
|
if (ret == 0) {
|
|
if (is.LockIsEOF())
|
|
/* end of file */
|
|
break;
|
|
|
|
/* I/O error - skip this song */
|
|
return buffer;
|
|
}
|
|
|
|
p += ret;
|
|
if (p == end) {
|
|
if (!is_stream)
|
|
break;
|
|
|
|
LogWarning(*domain, "stream too large");
|
|
return buffer;
|
|
}
|
|
}
|
|
|
|
buffer.SetSize(p - buffer.data());
|
|
return buffer;
|
|
}
|
|
|