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
usage(void)9 usage(void)
10 {
11 fprint(2, "usage: auth/dsa2ssh [-c comment] [file]\n");
12 exits("usage");
13 }
14
15 void
main(int argc,char ** argv)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", (int)(p - buf), buf, comment);
47 exits(nil);
48 }
49