libnet: Fix Coverity ID 1634803 Dereference after null check
[Samba.git] / third_party / heimdal / lib / gssapi / ntlm / display_name.c
blob59d2c847191576b3237cc3cfe44d688f48bcbd2c
1 /*
2 * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
34 #include "ntlm.h"
36 OM_uint32 GSSAPI_CALLCONV
37 _gss_ntlm_display_name
38 (OM_uint32 * minor_status,
39 gss_const_name_t input_name,
40 gss_buffer_t output_name_buffer,
41 gss_OID * output_name_type
44 *minor_status = 0;
46 if (output_name_type)
47 *output_name_type = GSS_NTLM_MECHANISM;
49 if (output_name_buffer) {
50 ntlm_name n = (ntlm_name)input_name;
51 char *str = NULL;
52 int len;
54 output_name_buffer->length = 0;
55 output_name_buffer->value = NULL;
57 if (n == NULL) {
58 *minor_status = 0;
59 return GSS_S_BAD_NAME;
62 len = asprintf(&str, "%s@%s", n->user, n->domain);
63 if (len < 0 || str == NULL) {
64 *minor_status = ENOMEM;
65 return GSS_S_FAILURE;
67 output_name_buffer->length = len;
68 output_name_buffer->value = str;
70 return GSS_S_COMPLETE;