1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
* For copying and distribution information, please see the file
* <Copyright.MIT>.
*
* from: get_cred.c,v 4.10 89/05/31 17:46:22 jtkohl Exp $
* $Id: get_cred.c,v 1.3 1995/07/18 16:38:28 mark Exp $
*/
#if 0
#ifndef lint
static char *rcsid =
"$Id: get_cred.c,v 1.3 1995/07/18 16:38:28 mark Exp $";
#endif /* lint */
#endif
#include <stdio.h>
#include <krb.h>
/*
* krb_get_cred takes a service name, instance, and realm, and a
* structure of type CREDENTIALS to be filled in with ticket
* information. It then searches the ticket file for the appropriate
* ticket and fills in the structure with the corresponding
* information from the file. If successful, it returns KSUCCESS.
* On failure it returns a Kerberos error code.
*/
int
krb_get_cred(service,instance,realm,c)
char *service; /* Service name */
char *instance; /* Instance */
char *realm; /* Auth domain */
CREDENTIALS *c; /* Credentials struct */
{
int tf_status; /* return value of tf function calls */
/* Open ticket file and lock it for shared reading */
if ((tf_status = tf_init(TKT_FILE, R_TKT_FIL)) != KSUCCESS)
return(tf_status);
/* Copy principal's name and instance into the CREDENTIALS struc c */
if ( (tf_status = tf_get_pname(c->pname)) != KSUCCESS ||
(tf_status = tf_get_pinst(c->pinst)) != KSUCCESS )
return (tf_status);
/* Search for requested service credentials and copy into c */
while ((tf_status = tf_get_cred(c)) == KSUCCESS) {
/* Is this the right ticket? */
if ((strcmp(c->service,service) == 0) &&
(strcmp(c->instance,instance) == 0) &&
(strcmp(c->realm,realm) == 0))
break;
}
(void) tf_close();
if (tf_status == EOF)
return (GC_NOTKT);
return(tf_status);
}
|
