pname_to_uid.c revision 181344 
1/*-
2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3 * Authors: Doug Rabson <dfr@rabson.org>
4 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27/* $FreeBSD: head/kerberos5/lib/libgssapi_krb5/pname_to_uid.c 181344 2008-08-06 14:02:05Z dfr $ */
28
29#include <pwd.h>
30
31#include "krb5/gsskrb5_locl.h"
32
33OM_uint32
34_gsskrb5_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
35    const gss_OID mech, uid_t *uidp)
36{
37	krb5_context context;
38	krb5_const_principal name = (krb5_const_principal) pname;
39	krb5_error_code kret;
40	char lname[MAXLOGNAME + 1], buf[128];
41	struct passwd pwd, *pw;
42
43	GSSAPI_KRB5_INIT (&context);
44
45	kret = krb5_aname_to_localname(context, name, sizeof(lname), lname);
46	if (kret) {
47		*minor_status = kret;
48		return (GSS_S_FAILURE);
49	}
50
51	*minor_status = 0;
52	getpwnam_r(lname, &pwd, buf, sizeof(buf), &pw);
53	if (pw) {
54		*uidp = pw->pw_uid;
55		return (GSS_S_COMPLETE);
56	} else {
57		return (GSS_S_FAILURE);
58	}
59}
60