#include <u.h>#include <libc.h>#include <auth.h>#include <mp.h>#include <libsec.h>#include "rsa2any.h" voidusage(void){	fprint(2, "usage: auth/dsa2ssh [-c comment] [file]\n");	exits("usage");} voidmain(int argc, char **argv){	DSApriv *k;	char *comment;	uchar buf[8192], *p;		fmtinstall('B', mpfmt);	fmtinstall('[', encodefmt);	comment = "";	ARGBEGIN{	case 'c':		comment = EARGF(usage());		break;	default:		usage();	}ARGEND 	if(argc > 1)		usage(); 	if((k = getdsakey(argc, argv, 0, nil)) == nil)		sysfatal("%r"); 	p = buf;	p = put4(p, 7);	p = putn(p, "ssh-dss", 7);	p = putmp2(p, k->pub.p);	p = putmp2(p, k->pub.q);	p = putmp2(p, k->pub.alpha);	p = putmp2(p, k->pub.key);	print("ssh-dss %.*[ %s\n", (int)(p - buf), buf, comment);	exits(nil);}