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/* ----------------------------------------------------------------------- *
*
* Copyright 2009 Pierre-Alexandre Meyer - All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall
* be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* -----------------------------------------------------------------------
*/
#include <stdio.h>
#include <string.h>
/* Computing div(x,y) */
#define sub(val) (((val%1024)*100)>>10)
#define sub_dec(val) (((val%1000)*100)/1000)
void sectors_to_size(int sectors, char *buffer)
{
int b = (sectors / 2);
int mib = b >> 10;
int gib = mib >> 10;
int tib = gib >> 10;
if (tib > 0)
sprintf(buffer, "%3d.%02d TiB", tib,sub(gib));
else if (gib > 0)
sprintf(buffer, "%3d.%02d GiB", gib,sub(mib));
else if (mib > 0)
sprintf(buffer, "%3d.%02d MiB", mib,sub(b));
else
sprintf(buffer, "%d B", b);
}
void sectors_to_size_dec(char *previous_unit, int *previous_size, char *unit,
int *size, int sectors)
{
*size = sectors / 2; // Converting to bytes
strlcpy(unit, "KB", 2);
strlcpy(previous_unit, unit, 2);
*previous_size = *size;
if (*size > 1000) {
*size = *size / 1000;
strlcpy(unit, "MB", 2);
if (*size > 1000) {
*previous_size = *size;
*size = *size / 1000;
strlcpy(previous_unit, unit, 2);
strlcpy(unit, "GB", 2);
if (*size > 1000) {
*previous_size = *size;
*size = *size / 1000;
strlcpy(previous_unit, unit, 2);
strlcpy(unit, "TB", 2);
}
}
}
}
/* Return the human readable size of device
* This function avoid disk's size rounding while
* not using float as they aren't currently supported */
void sectors_to_size_dec2(int sectors, char *buffer)
{
int b = (sectors / 2);
int mib = b / 1000;
int gib = mib / 1000;
int tib = gib / 1000;
if (tib > 0)
sprintf(buffer, "%3d.%02d TB", tib,sub_dec(gib));
else if (gib > 0)
sprintf(buffer, "%3d.%02d GB", gib,sub_dec(mib));
else if (mib > 0)
sprintf(buffer, "%3d.%02d MB", mib,sub_dec(b));
else
sprintf(buffer, "%d B", b);
}
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