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for (size_t i = 0; i < length; i++)
if (buffer[i] == '\0')
length = i;
return [OFString stringWithUTF8String: buffer
length: length];
}
static uintmax_t
octalValueFromBuffer(const char *buffer, size_t length, uintmax_t max)
{
uintmax_t value = [stringFromBuffer(buffer, length) octalValue];
if (value > max)
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for (size_t i = 0; i < length; i++)
if (buffer[i] == '\0')
length = i;
return [OFString stringWithUTF8String: buffer
length: length];
}
static void
stringToBuffer(unsigned char *buffer, OFString *string, size_t length)
{
size_t UTF8StringLength = [string UTF8StringLength];
if (UTF8StringLength > length)
@throw [OFOutOfRangeException exception];
memcpy(buffer, [string UTF8String], UTF8StringLength);
for (size_t i = UTF8StringLength; i < length; i++)
buffer[i] = '\0';
}
static uintmax_t
octalValueFromBuffer(const char *buffer, size_t length, uintmax_t max)
{
uintmax_t value = [stringFromBuffer(buffer, length) octalValue];
if (value > max)
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[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
@end
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[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
- (void)of_writeToStream: (OFStream *)stream
{
unsigned char buffer[512];
uint64_t modificationDate;
uint16_t checksum = 0;
stringToBuffer(buffer, _fileName, 100);
stringToBuffer(buffer + 100,
[OFString stringWithFormat: @"%06" PRIo32 " ", _mode], 8);
memcpy(buffer + 108, "000000 \0" "000000 \0", 16);
stringToBuffer(buffer + 124,
[OFString stringWithFormat: @"%011" PRIo64 " ", _size], 12);
modificationDate = [_modificationDate timeIntervalSince1970];
stringToBuffer(buffer + 136,
[OFString stringWithFormat: @"%011" PRIo64 " ", modificationDate],
12);
/*
* During checksumming, the checksum field is expected to be set to 8
* spaces.
*/
memset(buffer + 148, ' ', 8);
buffer[156] = _type;
stringToBuffer(buffer + 157, _targetFileName, 100);
/* ustar */
memcpy(buffer + 257, "ustar\0" "00", 8);
stringToBuffer(buffer + 265, _owner, 32);
stringToBuffer(buffer + 297, _group, 32);
stringToBuffer(buffer + 329,
[OFString stringWithFormat: @"%06" PRIo32 " ", _deviceMajor], 8);
stringToBuffer(buffer + 337,
[OFString stringWithFormat: @"%06" PRIo32 " ", _deviceMinor], 8);
memset(buffer + 345, '\0', 155 + 12);
/* Fill in the checksum */
for (size_t i = 0; i < 500; i++)
checksum += buffer[i];
stringToBuffer(buffer + 148,
[OFString stringWithFormat: @"%06" PRIo16, checksum], 7);
[stream writeBuffer: buffer
length: sizeof(buffer)];
}
@end
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