mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <LibCore/File.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
namespace Core {
|
|
|
|
File::File(const StringView& filename, Object* parent)
|
|
: IODevice(parent)
|
|
, m_filename(filename)
|
|
{
|
|
}
|
|
|
|
File::~File()
|
|
{
|
|
if (m_should_close_file_descriptor == ShouldCloseFileDescription::Yes && mode() != NotOpen)
|
|
close();
|
|
}
|
|
|
|
bool File::open(int fd, IODevice::OpenMode mode, ShouldCloseFileDescription should_close)
|
|
{
|
|
set_fd(fd);
|
|
set_mode(mode);
|
|
m_should_close_file_descriptor = should_close;
|
|
return true;
|
|
}
|
|
|
|
bool File::open(IODevice::OpenMode mode)
|
|
{
|
|
ASSERT(!m_filename.is_null());
|
|
int flags = 0;
|
|
if ((mode & IODevice::ReadWrite) == IODevice::ReadWrite) {
|
|
flags |= O_RDWR | O_CREAT;
|
|
} else if (mode & IODevice::ReadOnly) {
|
|
flags |= O_RDONLY;
|
|
} else if (mode & IODevice::WriteOnly) {
|
|
flags |= O_WRONLY | O_CREAT;
|
|
bool should_truncate = !((mode & IODevice::Append) || (mode & IODevice::MustBeNew));
|
|
if (should_truncate)
|
|
flags |= O_TRUNC;
|
|
}
|
|
if (mode & IODevice::Append)
|
|
flags |= O_APPEND;
|
|
if (mode & IODevice::Truncate)
|
|
flags |= O_TRUNC;
|
|
if (mode & IODevice::MustBeNew)
|
|
flags |= O_EXCL;
|
|
int fd = ::open(m_filename.characters(), flags, 0666);
|
|
if (fd < 0) {
|
|
set_error(errno);
|
|
return false;
|
|
}
|
|
|
|
set_fd(fd);
|
|
set_mode(mode);
|
|
return true;
|
|
}
|
|
|
|
bool File::is_directory() const
|
|
{
|
|
struct stat stat;
|
|
if (fstat(fd(), &stat) < 0)
|
|
return false;
|
|
return S_ISDIR(stat.st_mode);
|
|
}
|
|
|
|
bool File::is_directory(const String& filename)
|
|
{
|
|
struct stat st;
|
|
if (stat(filename.characters(), &st) < 0)
|
|
return false;
|
|
return S_ISDIR(st.st_mode);
|
|
}
|
|
|
|
bool File::exists(const String& filename)
|
|
{
|
|
struct stat st;
|
|
return stat(filename.characters(), &st) == 0;
|
|
}
|
|
|
|
}
|