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