ObjFW  Artifact [5e180f7511]

Artifact 5e180f751127e1b11a5e7320a94f1702babf53e7d6ee3ad790397cdd8b3ed348:

• File src/exceptions/OFChangeOwnerFailedException.m — part of check-in [62e2de30b9] at 2015-02-16 08:39:17 on branch trunk — Explicitly pass errno to exceptions

  The old behaviour where the exception would access errno directly on
  creation of the exception was very fragile. The two main problems with
  it were that sometimes it would pick up an errno even though none had
  been set and in other cases that when the exception was created errno
  had already been overridden.

  This also greatly increases errno handling on Win32, especially in
  conjunction with sockets. It can still be improved further, though. (user: js, size: 2127) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFChangeOwnerFailedException.h"
#import "OFString.h"

#ifdef OF_HAVE_CHOWN
@implementation OFChangeOwnerFailedException
+ (instancetype)exceptionWithPath: (OFString*)path
			    owner: (OFString*)owner
			    group: (OFString*)group
			    errNo: (int)errNo
{
	return [[[self alloc] initWithPath: path
				     owner: owner
				     group: group
				     errNo: errNo] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithPath: (OFString*)path
	 owner: (OFString*)owner
	 group: (OFString*)group
	 errNo: (int)errNo
{
	self = [super init];

	@try {
		_path  = [path copy];
		_owner = [owner copy];
		_group = [group copy];
		_errNo = errNo;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_path release];
	[_owner release];
	[_group release];

	[super dealloc];
}

- (OFString*)description
{
	if (_group == nil)
		return [OFString stringWithFormat:
		    @"Failed to change owner of item at path %@ to %@: %@",
		    _path, _owner, of_strerror(_errNo)];
	else if (_owner == nil)
		return [OFString stringWithFormat:
		    @"Failed to change group of item at path %@ to %@: %@",
		     _path, _group, of_strerror(_errNo)];
	else
		return [OFString stringWithFormat:
		    @"Failed to change owner of item at path %@ to %@:%@: %@",
		    _path, _owner, _group, of_strerror(_errNo)];
}

- (OFString*)path
{
	OF_GETTER(_path, true)
}

- (OFString*)owner
{
	OF_GETTER(_owner, true)
}

- (OFString*)group
{
	OF_GETTER(_group, true)
}

- (int)errNo
{
	return _errNo;
}
@end
#endif