* Copyright 2011, Jérôme Duval, korli@users.berlios.de.
* Copyright 2014 Haiku, Inc. All rights reserved.
*
* Distributed under the terms of the MIT License.
*
* Authors:
* Jérôme Duval, korli@users.berlios.de
* John Scipione, jscipione@gmail.com
*/
#include "Utility.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <Errors.h>
#include <util/convertutf.h>
status_t
get_volume_name(struct exfat_entry* entry, char* name, size_t length)
{
if (entry == NULL || name == NULL)
return B_BAD_VALUE;
if (entry->type == EXFAT_ENTRY_TYPE_NOT_IN_USE)
strlcpy(name, "", length);
else if (entry->type == EXFAT_ENTRY_TYPE_LABEL) {
ssize_t utf8Length = utf16le_to_utf8(entry->volume_label.name,
entry->volume_label.length, name, length);
if (utf8Length < 0)
return (status_t)utf8Length;
} else
return B_NAME_NOT_FOUND;
return B_OK;
}
void
get_default_volume_name(off_t partitionSize, char* name, size_t length)
{
off_t divisor = 1ULL << 40;
char unit = 'T';
if (partitionSize < divisor) {
divisor = 1UL << 30;
unit = 'G';
if (partitionSize < divisor) {
divisor = 1UL << 20;
unit = 'M';
}
}
double size = double((10 * partitionSize + divisor - 1) / divisor);
snprintf(name, length, "%g%ciB ExFAT Volume", size / 10, unit);
}
