summaryrefslogtreecommitdiffstats
path: root/src/lib/krb5/krb/set_realm.c
blob: f60cf9f567cbd3c3b74a6cdaf5386048de1122df (plain)
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
/*
 * lib/krb5/krb/set_realm.c
 *
 * Copyright 1997 by the Massachusetts Institute of Technology.
 * All Rights Reserved.
 *
 * Export of this software from the United States of America may
 *   require a specific license from the United States Government.
 *   It is the responsibility of any person or organization contemplating
 *   export to obtain such a license before exporting.
 * 
 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
 * distribute this software and its documentation for any purpose and
 * without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both that copyright notice and
 * this permission notice appear in supporting documentation, and that
 * the name of M.I.T. not be used in advertising or publicity pertaining
 * to distribution of the software without specific, written prior
 * permission.  Furthermore if you modify this software you must label
 * your software as modified software and not distribute it in such a
 * fashion that it might be confused with the original M.I.T. software.
 * M.I.T. makes no representations about the suitability of
 * this software for any purpose.  It is provided "as is" without express
 * or implied warranty.
 */

#include "k5-int.h"

krb5_error_code KRB5_CALLCONV
krb5_set_principal_realm(context, principal, realm)
    	krb5_context context;
	krb5_principal	principal;
	const char	FAR *realm;
{
	size_t	length;
	char	*newrealm;
	
	if (!realm || !*realm)
		return -EINVAL;

	length = strlen(realm);
	newrealm = malloc(length+1); /* Include room for the null */
	if (!newrealm)
		return -ENOMEM;
	strcpy(newrealm, realm);
	
	(void) krb5_xfree(krb5_princ_realm(context,principal)->data);

	krb5_princ_realm(context, principal)->length = length;
	krb5_princ_realm(context, principal)->data = newrealm;

	return 0;
}