freebsd-dev/eBones/krb/get_admhst.c
Geoff Rehmet 60643d379b Initial import of eBones.
(Including all changes for FreeBSD - importing the original eBones distribution
would be too complex at this stage, since I don't have access to Piero's 
CVS.)
(If you want to include eBones in your system, don't forget to include
MAKE_EBONES in /etc/make.conf.)
(This stuff is now also suppable from braae.ru.ac.za.)

Bones originally from MIT SIPB.
Original port to FreeBSD 1.x  by Piero Serini.
Moved to FreeBSD 2.0 by Doug Rabson and Geoff Rehmet.
Nice bug fixes from Doug Rabson.
1994-09-30 14:50:09 +00:00

80 lines
2.2 KiB
C

/*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
* For copying and distribution information, please see the file
* <Copyright.MIT>.
*
* from: get_admhst.c,v 4.0 89/01/23 10:08:55 jtkohl Exp $
* $Id: get_admhst.c,v 1.2 1994/07/19 19:25:13 g89r4222 Exp $
*/
#ifndef lint
static char *rcsid =
"$Id: get_admhst.c,v 1.2 1994/07/19 19:25:13 g89r4222 Exp $";
#endif /* lint */
#include <stdio.h>
#include <krb.h>
#include <string.h>
/*
* Given a Kerberos realm, find a host on which the Kerberos database
* administration server can be found.
*
* krb_get_admhst takes a pointer to be filled in, a pointer to the name
* of the realm for which a server is desired, and an integer n, and
* returns (in h) the nth administrative host entry from the configuration
* file (KRB_CONF, defined in "krb.h") associated with the specified realm.
*
* On error, get_admhst returns KFAILURE. If all goes well, the routine
* returns KSUCCESS.
*
* For the format of the KRB_CONF file, see comments describing the routine
* krb_get_krbhst().
*
* This is a temporary hack to allow us to find the nearest system running
* a Kerberos admin server. In the long run, this functionality will be
* provided by a nameserver.
*/
krb_get_admhst(h, r, n)
char *h;
char *r;
int n;
{
FILE *cnffile;
char tr[REALM_SZ];
char linebuf[BUFSIZ];
char scratch[64];
register int i;
if ((cnffile = fopen(KRB_CONF,"r")) == NULL) {
return(KFAILURE);
}
if (fgets(linebuf, BUFSIZ, cnffile) == NULL) {
/* error reading */
(void) fclose(cnffile);
return(KFAILURE);
}
if (!index(linebuf, '\n')) {
/* didn't all fit into buffer, punt */
(void) fclose(cnffile);
return(KFAILURE);
}
for (i = 0; i < n; ) {
/* run through the file, looking for admin host */
if (fgets(linebuf, BUFSIZ, cnffile) == NULL) {
(void) fclose(cnffile);
return(KFAILURE);
}
/* need to scan for a token after 'admin' to make sure that
admin matched correctly */
if (sscanf(linebuf, "%s %s admin %s", tr, h, scratch) != 3)
continue;
if (!strcmp(tr,r))
i++;
}
(void) fclose(cnffile);
return(KSUCCESS);
}