busybox/libbb/human_readable.c

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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) tons of folks. Tracking down who wrote what
* isn't something I'm going to worry about... If you wrote something
* here, please feel free to acknowledge your work.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
* Permission has been granted to redistribute this code under the GPL.
*
*/
#include <stdio.h>
#include "libbb.h"
const char *make_human_readable_str(unsigned long val, unsigned long hr)
{
int i=0;
static char str[10] = "\0";
static const char strings[] = { 'k', 'M', 'G', 'T', 0 };
unsigned long divisor = 1;
if(val == 0)
return("0");
if(hr)
snprintf(str, 9, "%ld", val/hr);
else {
while(val >= divisor && i <= 4) {
divisor=divisor<<10, i++;
}
divisor=divisor>>10, i--;
snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]);
}
return(str);
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/