/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <mp.h>#include <fcall.h>#include <thread.h>#include <9p.h>#include <auth.h>#include <authsrv.h>#include <libsec.h>#include "netssh.h" Cipher *cryptos[1];int debug; voidusage(void){	fprint(2, "usage: %s [file]\n", argv0);	exits("usage");} voidmain(int argc, char *argv[]){	Packet *p;	char *ep, *np, *user;	mpint *e, *n;	int fd, m;	char key[Maxrpcbuf], encpub[Maxrpcbuf]; 	ARGBEGIN {	default:		usage();	} ARGEND	if (argc > 1)		usage(); 	user = getenv("user");	if (argc == 0)		fd = 0;	else {		fd = open(argv[0], OREAD);		if (fd < 0)			usage();	}	m = read(fd, key, Maxrpcbuf - 1);	close(fd);	key[m >= 0? m: 0] = 0; 	ep = strstr(key, " ek=");	np = strstr(key, " n=");	if (ep == nil || np == nil)		sysfatal("bad key file\n");	e = strtomp(ep+4, nil, 16, nil);	n = strtomp(np+3, nil, 16, nil);	p = new_packet(nil);	add_string(p, "ssh-rsa");	add_mp(p, e);	add_mp(p, n);	if ((m = enc64(encpub, Maxrpcbuf, p->payload, p->rlength-1)) < 0)		sysfatal("base-64 encoding failed\n");	print("ssh-rsa ");	write(1, encpub, m);	if (user)		print(" %s\n", user);}