1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2015-2020 Intel Corporation. All rights reserved.
#include <stdlib.h>
#include <limits.h>
#include <util/size.h>
unsigned long long __parse_size64(const char *str, unsigned long long *units)
{
unsigned long long val, check;
char *end;
val = strtoull(str, &end, 0);
if (val == ULLONG_MAX)
return val;
check = val;
switch (*end) {
case 'k':
case 'K':
if (units)
*units = SZ_1K;
val *= SZ_1K;
end++;
break;
case 'm':
case 'M':
if (units)
*units = SZ_1M;
val *= SZ_1M;
end++;
break;
case 'g':
case 'G':
if (units)
*units = SZ_1G;
val *= SZ_1G;
end++;
break;
case 't':
case 'T':
if (units)
*units = SZ_1T;
val *= SZ_1T;
end++;
break;
default:
if (units)
*units = 1;
break;
}
if (val < check || *end != '\0')
val = ULLONG_MAX;
return val;
}
unsigned long long parse_size64(const char *str)
{
if (!str)
return 0;
return __parse_size64(str, NULL);
}
|
