Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/src/cmd/auth/lib/getauthkey.c

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#include <u.h>
#include <libc.h>
#include <authsrv.h>
#include <bio.h>
#include "authcmdlib.h"

static int
getkey(char *authkey)
{
	Nvrsafe safe;

	if(readnvram(&safe, 0) < 0)
		return -1;
	memmove(authkey, safe.machkey, DESKEYLEN);
	memset(&safe, 0, sizeof safe);
	return 0;
}

int
getauthkey(char *authkey)
{
	if(getkey(authkey) == 0)
		return 1;
	print("can't read NVRAM, please enter machine key\n");
	getpass(authkey, nil, 0, 1);
	return 1;
}

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