freebsd-dev/eBones/krb/get_admhst.c
Mark Murray d79d4a7ced Major cleanup of eBones code:
- Get all functions prototyped or at least defined before use.
- Make code compile (Mostly) clean with -Wall set
- Start to reduce the degree to which DES aka libdes is built in.
- get all functions to the same uniform standard of definition:
int
foo(a, b)
int a;
int *b;
{
   :
}
- fix numerous bugs exposed by above processes.

Note - this replaces the previous work which used an unpopular function
 definition style.
1995-09-07 21:39:00 +00:00

83 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 1.3 1995/07/18 16:38:27 mark Exp $
*/
#if 0
#ifndef lint
static char *rcsid =
"$Id: get_admhst.c,v 1.3 1995/07/18 16:38:27 mark Exp $";
#endif /* lint */
#endif
#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.
*/
int
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);
}