123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
|
/***
|
||
|
Copyright (C) 2023 J Reece Wilson (a/k/a "Reece"). All rights reserved.
|
||
|
|
||
|
File: FileAttrs.Unix.cpp
|
||
|
Date: 2023-2-4
|
||
|
Author: Reece
|
||
|
***/
|
||
|
#include <Source/RuntimeInternal.hpp>
|
||
|
#include "FS.hpp"
|
||
|
#include "FileAttrs.Unix.hpp"
|
||
|
#include <sys/types.h>
|
||
|
#include <sys/xattr.h>
|
||
|
|
||
|
namespace Aurora::IO::FS
|
||
|
{
|
||
|
AUKN_SYM AuList<AuString> FileAttrsList(const AuString &path)
|
||
|
{
|
||
|
static const auto kLength = 10 * 1024;
|
||
|
AuString buffer;
|
||
|
|
||
|
auto srcPath = NormalizePathRet(path);
|
||
|
if (pathex.empty())
|
||
|
{
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
if (!AuTryResize(buffer, kLength))
|
||
|
{
|
||
|
SysPushErrorMemory();
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
auto length = ::listxattr(srcPath.c_str(), attr.c_str(), buffer.data(), buffer.size(), 0 /*no follow symlinks*/);
|
||
|
if (length < 0)
|
||
|
{
|
||
|
SysPushErrorIO("Error listing attributes");
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
if (!AuTryResize(buffer, length))
|
||
|
{
|
||
|
SysPushErrorMemory();
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
return AuSplitString(buffer, "\00");
|
||
|
}
|
||
|
|
||
|
AUKN_SYM AuResult<AuByteBuffer> FileAttrsGet(const AuString &path, const AuString &attr)
|
||
|
{
|
||
|
AuByteBuffer buffer;
|
||
|
|
||
|
auto srcPath = NormalizePathRet(path);
|
||
|
if (pathex.empty())
|
||
|
{
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
auto length = ::getxattr(srcPath.c_str(), attr.c_str(), nullptr, 0, 0 /*no follow symlinks*/);
|
||
|
if (length < 0)
|
||
|
{
|
||
|
SysPushErrorIO("Error reading attribute");
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
if (!length)
|
||
|
{
|
||
|
return AuMove(buffer);
|
||
|
}
|
||
|
|
||
|
if (!AuTryResize(buffer, length))
|
||
|
{
|
||
|
SysPushErrorMemory();
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
length = ::getxattr(srcPath.c_str(), attr.c_str(), buffer.base, length, 0 /*no follow symlinks*/);
|
||
|
if (length < 0)
|
||
|
{
|
||
|
SysPushErrorIO("Error reading attribute");
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
buffer.writePtr += length;
|
||
|
|
||
|
return AuMove(buffer);
|
||
|
}
|
||
|
|
||
|
AUKN_SYM bool FileAttrsSet(const AuString &path, const AuString &attr, const Memory::MemoryViewRead &view)
|
||
|
{
|
||
|
auto srcPath = NormalizePathRet(path);
|
||
|
if (pathex.empty())
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (::setxattr(srcPath.c_str(), attr.c_str(), view.ptr, view.length, XATTR_CREATE) == -1)
|
||
|
{
|
||
|
if (errno == EEXIST)
|
||
|
{
|
||
|
if (::setxattr(srcPath.c_str(), attr.c_str(), view.ptr, view.length, XATTR_REPLACE) == -1)
|
||
|
{
|
||
|
SysPushErrorIO();
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
AUKN_SYM bool FileAttrsDel(const AuString &path, const AuString &attr)
|
||
|
{
|
||
|
auto srcPath = NormalizePathRet(path);
|
||
|
if (pathex.empty())
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return (::removexattr(srcPath.c_str(), attr.c_str()) == 0) ||
|
||
|
(errno == ENODATA);
|
||
|
}
|
||
|
}
|