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