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/* Copyright (C) 2025 Wildfire Games.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* simple POSIX file wrapper.
*/
#include "precompiled.h"
#include "file.h"
#include "lib/code_annotation.h"
#include "lib/debug.h"
#include "lib/file/common/file_stats.h"
#include "lib/posix/posix_filesystem.h"
#include "lib/sysdep/filesystem.h"
#include <cerrno>
#include <fcntl.h>
static const StatusDefinition fileStatusDefinitions[] = {
{ ERR::FILE_ACCESS, L"Insufficient access rights to open file", EACCES },
{ ERR::FILE_NOT_FOUND, L"No such file or directory", ENOENT }
};
STATUS_ADD_DEFINITIONS(fileStatusDefinitions);
Status FileOpen(const OsPath& pathname, int oflag)
{
ENSURE((oflag & ~(O_RDONLY|O_WRONLY|O_DIRECT)) == 0);
if(oflag & O_WRONLY)
oflag |= O_CREAT|O_TRUNC;
// prevent exploits by disallowing writes to our files by other users.
// note that the system-wide installed cache is read-only.
const mode_t mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH; // 0644
const int fd = wopen(pathname, oflag, mode);
if(fd < 0)
return StatusFromErrno(); // NOWARN
stats_open();
return (Status)fd;
}
void FileClose(int& fd)
{
if(fd >= 0)
{
wclose(fd);
fd = -1;
}
}
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