1 #include <u.h>
2 #include <libc.h>
3 #include <auth.h>
4 #include <mp.h>
5 #include <libsec.h>
6 #include "rsa2any.h"
7 
8 int ssh2;
9 
10 void
11 usage(void)
12 {
13 	fprint(2, "usage: auth/rsa2ssh [-2] [-c comment] [file]\n");
14 	exits("usage");
15 }
16 
17 void
18 main(int argc, char **argv)
19 {
20 	RSApriv *k;
21 	char *comment;
22 
23 	fmtinstall('B', mpfmt);
24 	fmtinstall('[', encodefmt);
25 	comment = "";
26 	ARGBEGIN{
27 	case '2':
28 		ssh2 = 1;
29 		break;
30 	case 'c':
31 		comment = EARGF(usage());
32 		break;
33 	default:
34 		usage();
35 	}ARGEND
36 
37 	if(argc > 1)
38 		usage();
39 
40 	if((k = getkey(argc, argv, 0, nil)) == nil)
41 		sysfatal("%r");
42 
43 	if(ssh2){
44 		uchar buf[8192], *p;
45 
46 		p = buf;
47 		p = put4(p, 7);
48 		p = putn(p, "ssh-rsa", 7);
49 		p = putmp2(p, k->pub.ek);
50 		p = putmp2(p, k->pub.n);
51 		print("ssh-rsa %.*[ %s\n", p-buf, buf, comment);
52 	}else
53 		print("%d %.10B %.10B %s\n", mpsignif(k->pub.n), k->pub.ek,
54 			k->pub.n, comment);
55 	exits(nil);
56 }