summaryrefslogtreecommitdiff
path: root/appl/cmd/randpass.b
blob: ddfa8e093bac8d20d50dcfe1a4e3bc0b5b42f9ec (plain)
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
implement Randpass;

include "sys.m";
	sys: Sys;
	stderr: ref Sys->FD;

include "draw.m";

include "ipints.m";
	ipints: IPints;
	IPint: import ipints;

Randpass: module
{
	init: fn(nil: ref Draw->Context, nil: list of string);
};

init(nil: ref Draw->Context, args: list of string)
{
	sys = load Sys Sys->PATH;
	ipints = load IPints IPints->PATH;

	if(args != nil)
		args = tl args;
	pwlen := 16;
	if(args != nil){
		if(!isnumeric(hd args) || (pwlen = int hd args) <= 8 || pwlen > 256){
			sys->fprint(sys->fildes(2), "Usage: randpass [password-length(<256, default=16)]\n");
			raise "fail:usage";
		}
	}
	sys->print("%s\n", IPint.random(pwlen*8).iptob64()[0: pwlen]);
}

isnumeric(s: string): int
{
	for(i := 0; i < len s; i++)
		if(!(s[i]>='0' && s[i]<='9'))
			return 0;
	return i > 0;
}