ObjFW  Artifact [6d0086e491]

Artifact 6d0086e491a77a1919759c14224f858cdde966df8c69d1ac997df893d6574735:

• File src/OFFile.m — part of check-in [06bcb21fc7] at 2017-01-09 06:26:04 on branch trunk — Add OFLocalization

  This singleton gives access to all things locale, including the ability
  to get localized strings.

  This also adds the OF_LOCALIZED() macro. Its first argument is an ID for
  the string to be localized and its second argument is the fallback
  string to be used if it cannot retrieve the localized string. Following
  that are variable name / value pairs to be replaced in the localized
  string.

  Getting translated strings is not implemented yet: Instead, it always
  uses the fallback string.

  This also switches ofhttp to localized strings. (user: js, size: 6613) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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"

#include <errno.h>

#include <fcntl.h>
#include <unistd.h>

#include "platform.h"

#ifdef OF_WII
# define BOOL OGC_BOOL
# include <fat.h>
# undef BOOL
#endif

#ifdef OF_NINTENDO_DS
# include <stdbool.h>
# include <filesystem.h>
#endif

#import "OFFile.h"
#import "OFString.h"
#import "OFLocalization.h"

#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFSeekFailedException.h"
#import "OFWriteFailedException.h"

#ifdef OF_WINDOWS
# include <windows.h>
#endif

#ifndef O_BINARY
# define O_BINARY 0
#endif
#ifndef O_CLOEXEC
# define O_CLOEXEC 0
#endif
#ifndef O_EXLOCK
# define O_EXLOCK 0
#endif

#ifndef S_IRGRP
# define S_IRGRP 0
#endif
#ifndef S_IROTH
# define S_IROTH 0
#endif
#ifndef S_IWGRP
# define S_IWGRP 0
#endif
#ifndef S_IWOTH
# define S_IWOTH 0
#endif

#define DEFAULT_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH

static int
parseMode(const char *mode)
{
	if (strcmp(mode, "r") == 0)
		return O_RDONLY;
	if (strcmp(mode, "w") == 0)
		return O_WRONLY | O_CREAT | O_TRUNC;
	if (strcmp(mode, "wx") == 0)
		return O_WRONLY | O_CREAT | O_EXCL | O_EXLOCK;
	if (strcmp(mode, "a") == 0)
		return O_WRONLY | O_CREAT | O_APPEND;
	if (strcmp(mode, "rb") == 0)
		return O_RDONLY | O_BINARY;
	if (strcmp(mode, "wb") == 0)
		return O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
	if (strcmp(mode, "wbx") == 0)
		return O_WRONLY | O_CREAT | O_EXCL | O_EXLOCK;
	if (strcmp(mode, "ab") == 0)
		return O_WRONLY | O_CREAT | O_APPEND | O_BINARY;
	if (strcmp(mode, "r+") == 0)
		return O_RDWR;
	if (strcmp(mode, "w+") == 0)
		return O_RDWR | O_CREAT | O_TRUNC;
	if (strcmp(mode, "a+") == 0)
		return O_RDWR | O_CREAT | O_APPEND;
	if (strcmp(mode, "r+b") == 0 || strcmp(mode, "rb+") == 0)
		return O_RDWR | O_BINARY;
	if (strcmp(mode, "w+b") == 0 || strcmp(mode, "wb+") == 0)
		return O_RDWR | O_CREAT | O_TRUNC | O_BINARY;
	if (strcmp(mode, "w+bx") == 0 || strcmp(mode, "wb+x") == 0)
		return O_RDWR | O_CREAT | O_EXCL | O_EXLOCK;
	if (strcmp(mode, "ab+") == 0 || strcmp(mode, "a+b") == 0)
		return O_RDWR | O_CREAT | O_APPEND | O_BINARY;

	return -1;
}

@implementation OFFile
+ (void)initialize
{
	if (self != [OFFile class])
		return;

#ifdef OF_WII
	if (!fatInitDefault())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
#endif

#ifdef OF_NINTENDO_DS
	if (!nitroFSInit(NULL))
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
#endif
}

+ (instancetype)fileWithPath: (OFString*)path
			mode: (OFString*)mode
{
	return [[[self alloc] initWithPath: path
				      mode: mode] autorelease];
}

+ (instancetype)fileWithFileDescriptor: (int)filedescriptor
{
	return [[[self alloc]
	    initWithFileDescriptor: filedescriptor] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithPath: (OFString*)path
	  mode: (OFString*)mode
{
	self = [super init];

	@try {
		int flags;

		if ((flags = parseMode([mode UTF8String])) == -1)
			@throw [OFInvalidArgumentException exception];

		flags |= O_CLOEXEC;

#if defined(OF_WINDOWS)
		if ((_fd = _wopen([path UTF16String], flags,
		    DEFAULT_MODE)) == -1)
#elif defined(OF_HAVE_OFF64_T)
		if ((_fd = open64([path cStringWithEncoding:
		    [OFLocalization encoding]], flags, DEFAULT_MODE)) == -1)
#else
		if ((_fd = open([path cStringWithEncoding:
		    [OFLocalization encoding]], flags, DEFAULT_MODE)) == -1)
#endif
			@throw [OFOpenItemFailedException
			    exceptionWithPath: path
					 mode: mode
					errNo: errno];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithFileDescriptor: (int)fd
{
	self = [super init];

	_fd = fd;

	return self;
}

- (bool)lowlevelIsAtEndOfStream
{
	if (_fd == -1)
		return true;

	return _atEndOfStream;
}

- (size_t)lowlevelReadIntoBuffer: (void*)buffer
			  length: (size_t)length
{
	ssize_t ret;

	if (_fd == -1 || _atEndOfStream)
		@throw [OFReadFailedException exceptionWithObject: self
						  requestedLength: length];

#ifndef OF_WINDOWS
	if ((ret = read(_fd, buffer, length)) < 0)
		@throw [OFReadFailedException exceptionWithObject: self
						  requestedLength: length
							    errNo: errno];
#else
	if (length > UINT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((ret = read(_fd, buffer, (unsigned int)length)) < 0)
		@throw [OFReadFailedException exceptionWithObject: self
						  requestedLength: length
							    errNo: errno];
#endif

	if (ret == 0)
		_atEndOfStream = true;

	return ret;
}

- (void)lowlevelWriteBuffer: (const void*)buffer
		     length: (size_t)length
{
	if (_fd == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

#ifndef OF_WINDOWS
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, (int)length) != (int)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#endif
}

- (of_offset_t)lowlevelSeekToOffset: (of_offset_t)offset
			     whence: (int)whence
{
#if defined(OF_WINDOWS)
	of_offset_t ret = _lseeki64(_fd, offset, whence);
#elif defined(OF_HAVE_OFF64_T)
	of_offset_t ret = lseek64(_fd, offset, whence);
#else
	of_offset_t ret = lseek(_fd, offset, whence);
#endif

	if (ret == -1)
		@throw [OFSeekFailedException exceptionWithStream: self
							   offset: offset
							   whence: whence
							    errNo: errno];

	_atEndOfStream = false;

	return ret;
}

- (int)fileDescriptorForReading
{
	return _fd;
}

- (int)fileDescriptorForWriting
{
	return _fd;
}

- (void)close
{
	if (_fd != -1)
		close(_fd);

	_fd = -1;

	[super close];
}

- (void)dealloc
{
	if (_fd != -1)
		close(_fd);

	[super dealloc];
}
@end