176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman/* ----------------------------------------------------------------------- *
276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   Copyright 2007-2009 H. Peter Anvin - All Rights Reserved
476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   Permission is hereby granted, free of charge, to any person
776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   obtaining a copy of this software and associated documentation
876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   files (the "Software"), to deal in the Software without
976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   restriction, including without limitation the rights to use,
1076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   copy, modify, merge, publish, distribute, sublicense, and/or
1176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   sell copies of the Software, and to permit persons to whom
1276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   the Software is furnished to do so, subject to the following
1376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   conditions:
1476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
1576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   The above copyright notice and this permission notice shall
1676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   be included in all copies or substantial portions of the Software.
1776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
1876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
1976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
2076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
2176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
2276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
2376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
2476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
2576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *   OTHER DEALINGS IN THE SOFTWARE.
2676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
2776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * ----------------------------------------------------------------------- */
2876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman
2976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman/*
3076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * suffix_number.c
3176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman *
3276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * Convert a string of a number with potential SI suffix to int-type
3376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman */
3476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman
3576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <stdlib.h>
3676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <suffix_number.h>
3776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman
3876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman/* Get a value with a potential suffix (k/m/g/t/p/e) */
3976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartmanunsigned long long suffix_number(const char *str)
4076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman{
4176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    char *ep;
4276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    unsigned long long v;
4376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    int shift;
4476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman
4576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    v = strtoull(str, &ep, 0);
4676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    switch (*ep | 0x20) {
4776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 'k':
4876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 10;
4976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
5076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 'm':
5176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 20;
5276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
5376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 'g':
5476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 30;
5576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
5676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 't':
5776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 40;
5876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
5976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 'p':
6076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 50;
6176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
6276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    case 'e':
6376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 60;
6476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
6576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    default:
6676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	shift = 0;
6776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman	break;
6876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    }
6976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    v <<= shift;
7076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman
7176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman    return v;
7276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman}
73