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/*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
* For copying and distribution information, please see the file
* <Copyright.MIT>.
*
* from: kntoln.c,v 4.7 89/01/23 09:25:15 jtkohl Exp $
* $FreeBSD$
*/
#if 0
#ifndef lint
static char *rcsid =
"$FreeBSD$";
#endif /* lint */
#endif
#include <krb.h>
#include <strings.h>
/*
* krb_kntoln converts an auth name into a local name by looking up
* the auth name in the /etc/aname file. The format of the aname
* file is:
*
* +-----+-----+-----+-----+------+----------+-------+-------+
* | anl | inl | rll | lnl | name | instance | realm | lname |
* +-----+-----+-----+-----+------+----------+-------+-------+
* | 1by | 1by | 1by | 1by | name | instance | realm | lname |
* +-----+-----+-----+-----+------+----------+-------+-------+
*
* If the /etc/aname file can not be opened it will set the
* local name to the auth name. Thus, in this case it performs as
* the identity function.
*
* The name instance and realm are passed to krb_kntoln through
* the AUTH_DAT structure (ad).
*
* Now here's what it *really* does:
*
* Given a Kerberos name in an AUTH_DAT structure, check that the
* instance is null, and that the realm is the same as the local
* realm, and return the principal's name in "lname". Return
* KSUCCESS if all goes well, otherwise KFAILURE.
*/
int
krb_kntoln(ad,lname)
AUTH_DAT *ad;
char *lname;
{
static char lrealm[REALM_SZ] = "";
if (!(*lrealm) && (krb_get_lrealm(lrealm,1) == KFAILURE))
return(KFAILURE);
if (strcmp(ad->pinst,""))
return(KFAILURE);
if (strcmp(ad->prealm,lrealm))
return(KFAILURE);
(void) strcpy(lname,ad->pname);
return(KSUCCESS);
}
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