1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/gssapi/krb5/export_name.c */
3 /*
4 * Copyright 1997, 2007 by the Massachusetts Institute of Technology.
5 * All Rights Reserved.
6 *
7 * Export of this software from the United States of America may
8 * require a specific license from the United States Government.
9 * It is the responsibility of any person or organization contemplating
10 * export to obtain such a license before exporting.
11 *
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of M.I.T. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. Furthermore if you modify this software you must label
20 * your software as modified software and not distribute it in such a
21 * fashion that it might be confused with the original M.I.T. software.
22 * M.I.T. makes no representations about the suitability of
23 * this software for any purpose. It is provided "as is" without express
24 * or implied warranty.
25 */
26
27 #include "gssapiP_krb5.h"
28
29 OM_uint32 KRB5_CALLCONV
krb5_gss_export_name(OM_uint32 * minor_status,const gss_name_t input_name,gss_buffer_t exported_name)30 krb5_gss_export_name(OM_uint32 *minor_status, const gss_name_t input_name,
31 gss_buffer_t exported_name)
32 {
33 krb5_context context;
34 krb5_error_code code;
35 size_t length;
36 char *str;
37 unsigned char *cp;
38
39 if (minor_status)
40 *minor_status = 0;
41
42 code = krb5_gss_init_context(&context);
43 if (code) {
44 if (minor_status)
45 *minor_status = code;
46 return GSS_S_FAILURE;
47 }
48
49 exported_name->length = 0;
50 exported_name->value = NULL;
51
52 if ((code = krb5_unparse_name(context, ((krb5_gss_name_t) input_name)->princ,
53 &str))) {
54 if (minor_status)
55 *minor_status = code;
56 save_error_info((OM_uint32)code, context);
57 krb5_free_context(context);
58 return(GSS_S_FAILURE);
59 }
60
61 krb5_free_context(context);
62 length = strlen(str);
63 exported_name->length = 10 + length + gss_mech_krb5->length;
64 exported_name->value = gssalloc_malloc(exported_name->length);
65 if (!exported_name->value) {
66 free(str);
67 if (minor_status)
68 *minor_status = ENOMEM;
69 return(GSS_S_FAILURE);
70 }
71 cp = exported_name->value;
72
73 /* Note: we assume the OID will be less than 128 bytes... */
74 *cp++ = 0x04; *cp++ = 0x01;
75 store_16_be(gss_mech_krb5->length+2, cp);
76 cp += 2;
77 *cp++ = 0x06;
78 *cp++ = (gss_mech_krb5->length) & 0xFF;
79 memcpy(cp, gss_mech_krb5->elements, gss_mech_krb5->length);
80 cp += gss_mech_krb5->length;
81 store_32_be(length, cp);
82 cp += 4;
83 memcpy(cp, str, length);
84
85 free(str);
86
87 return(GSS_S_COMPLETE);
88 }
89