pname_to_uid.c revision 1.1.1.1.8.2 
1/*	$NetBSD: pname_to_uid.c,v 1.1.1.1.8.2 2014/08/19 23:45:17 tls Exp $	*/
2
3/*
4 * Copyright (c) 2011, PADL Software Pty Ltd.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * 3. Neither the name of PADL Software nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include "gsskrb5_locl.h"
36
37OM_uint32 GSSAPI_CALLCONV
38_gsskrb5_pname_to_uid(OM_uint32 *minor_status,
39                      const gss_name_t pname,
40                      const gss_OID mech_type,
41                      uid_t *uidp)
42{
43#ifdef NO_LOCALNAME
44    *minor_status = KRB5_NO_LOCALNAME;
45    return GSS_S_FAILURE;
46#else
47    krb5_error_code ret;
48    krb5_context context;
49    krb5_const_principal princ = (krb5_const_principal)pname;
50    char localname[256];
51#ifdef POSIX_GETPWNAM_R
52    char pwbuf[2048];
53    struct passwd pw, *pwd;
54#else
55    struct passwd *pwd;
56#endif
57
58    GSSAPI_KRB5_INIT(&context);
59
60    *minor_status = 0;
61
62    ret = krb5_aname_to_localname(context, princ,
63                                  sizeof(localname), localname);
64    if (ret != 0) {
65        *minor_status = ret;
66        return GSS_S_FAILURE;
67    }
68
69#ifdef POSIX_GETPWNAM_R
70    if (getpwnam_r(localname, &pw, pwbuf, sizeof(pwbuf), &pwd) != 0) {
71        *minor_status = KRB5_NO_LOCALNAME;
72        return GSS_S_FAILURE;
73    }
74#else
75    pwd = getpwnam(localname);
76#endif
77
78    if (pwd == NULL) {
79        *minor_status = KRB5_NO_LOCALNAME;
80        return GSS_S_FAILURE;
81    }
82
83    *uidp = pwd->pw_uid;
84
85    return GSS_S_COMPLETE;
86#endif /* NO_LOCALNAME */
87}
88