|
1
|
function gen_bits_lan(ipaddr) {
|
|
2
|
if (ipaddr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) != -1) {
|
|
3
|
var adr = ipaddr.split(/\./);
|
|
4
|
if (adr[0] > 255 || adr[1] > 255 || adr[2] > 255 || adr[3] > 255)
|
|
5
|
return "";
|
|
6
|
if (adr[0] == 0 && adr[1] == 0 && adr[2] == 0 && adr[3] == 0)
|
|
7
|
return "";
|
|
8
|
|
|
9
|
if (adr[0] <= 127)
|
|
10
|
return "8";
|
|
11
|
else if (adr[0] <= 191)
|
|
12
|
return "16";
|
|
13
|
else
|
|
14
|
return "24";
|
|
15
|
}
|
|
16
|
else
|
|
17
|
return "";
|
|
18
|
}
|
|
19
|
|
|
20
|
function gen_bits_opt(ipaddr) {
|
|
21
|
if (ipaddr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) != -1) {
|
|
22
|
var adr = ipaddr.split(/\./);
|
|
23
|
if (adr[0] > 255 || adr[1] > 255 || adr[2] > 255 || adr[3] > 255)
|
|
24
|
return 0;
|
|
25
|
if (adr[0] == 0 && adr[1] == 0 && adr[2] == 0 && adr[3] == 0)
|
|
26
|
return 0;
|
|
27
|
|
|
28
|
if (adr[0] <= 127)
|
|
29
|
return 23;
|
|
30
|
else if (adr[0] <= 191)
|
|
31
|
return 15;
|
|
32
|
else
|
|
33
|
return 7;
|
|
34
|
}
|
|
35
|
else
|
|
36
|
return 0;
|
|
37
|
}
|