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
|
#include <stdlib.h>
#include <errno.h>
#include "util.h"
/*
* Safer wrapper of strtoll. Return 0 on success, otherwise -1.
* Idea from corosync-qdevice project
*/
int
util_strtonum(const char *str, long long int min_val, long long int max_val,
long long int *res)
{
long long int tmp_ll;
char *ep;
if (min_val > max_val) {
return (-1);
}
errno = 0;
tmp_ll = strtoll(str, &ep, 10);
if (ep == str || *ep != '\0' || errno != 0) {
return (-1);
}
if (tmp_ll < min_val || tmp_ll > max_val) {
return (-1);
}
*res = tmp_ll;
return (0);
}
|
