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 void
9 usage(void)
10 {
11 	fprint(2, "usage: auth/dsa2ssh [-c comment] [file]\n");
12 	exits("usage");
13 }
14 
15 void
16 main(int argc, char **argv)
17 {
18 	DSApriv *k;
19 	char *comment;
20 	uchar buf[8192], *p;
21 
22 	fmtinstall('B', mpfmt);
23 	fmtinstall('[', encodefmt);
24 	comment = "";
25 	ARGBEGIN{
26 	case 'c':
27 		comment = EARGF(usage());
28 		break;
29 	default:
30 		usage();
31 	}ARGEND
32 
33 	if(argc > 1)
34 		usage();
35 
36 	if((k = getdsakey(argc, argv, 0, nil)) == nil)
37 		sysfatal("%r");
38 
39 	p = buf;
40 	p = put4(p, 7);
41 	p = putn(p, "ssh-dss", 7);
42 	p = putmp2(p, k->pub.p);
43 	p = putmp2(p, k->pub.q);
44 	p = putmp2(p, k->pub.alpha);
45 	p = putmp2(p, k->pub.key);
46 	print("ssh-dss %.*[ %s\n", p-buf, buf, comment);
47 	exits(nil);
48 }