nt_gss_common.c revision 233294 
1/*
2 * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H��gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
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 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
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.
16 *
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.
20 *
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.
32 */
33
34#include "test_locl.h"
35#include <gssapi.h>
36#include "nt_gss_common.h"
37
38RCSID("$Id$");
39
40/*
41 * These are functions that are needed to interoperate with the
42 * `Sample SSPI Code' in Windows 2000 RC1 SDK.
43 */
44
45/*
46 * Write the `gss_buffer_t' in `buf' onto the fd `sock', but remember that
47 * the length is written in little-endian-order.
48 */
49
50void
51nt_write_token (int sock, gss_buffer_t buf)
52{
53    unsigned char net_len[4];
54    uint32_t len;
55    OM_uint32 min_stat;
56
57    len = buf->length;
58
59    net_len[0] = (len >>  0) & 0xFF;
60    net_len[1] = (len >>  8) & 0xFF;
61    net_len[2] = (len >> 16) & 0xFF;
62    net_len[3] = (len >> 24) & 0xFF;
63
64    if (write (sock, net_len, 4) != 4)
65	err (1, "write");
66    if (write (sock, buf->value, len) != len)
67	err (1, "write");
68
69    gss_release_buffer (&min_stat, buf);
70}
71
72/*
73 *
74 */
75
76void
77nt_read_token (int sock, gss_buffer_t buf)
78{
79    unsigned char net_len[4];
80    uint32_t len;
81
82    if (read(sock, net_len, 4) != 4)
83	err (1, "read");
84    len = (net_len[0] <<  0)
85	| (net_len[1] <<  8)
86	| (net_len[2] << 16)
87	| (net_len[3] << 24);
88
89    buf->length = len;
90    buf->value  = malloc(len);
91    if (read (sock, buf->value, len) != len)
92	err (1, "read");
93}
94
95void
96gss_print_errors (int min_stat)
97{
98    OM_uint32 new_stat;
99    OM_uint32 msg_ctx = 0;
100    gss_buffer_desc status_string;
101    OM_uint32 ret;
102
103    do {
104	ret = gss_display_status (&new_stat,
105				  min_stat,
106				  GSS_C_MECH_CODE,
107				  GSS_C_NO_OID,
108				  &msg_ctx,
109				  &status_string);
110	fprintf (stderr, "%.*s\n",
111		(int)status_string.length,
112		(char *)status_string.value);
113	gss_release_buffer (&new_stat, &status_string);
114    } while (!GSS_ERROR(ret) && msg_ctx != 0);
115}
116
117void
118gss_verr(int exitval, int status, const char *fmt, va_list ap)
119{
120    vwarnx (fmt, ap);
121    gss_print_errors (status);
122    exit (exitval);
123}
124
125void
126gss_err(int exitval, int status, const char *fmt, ...)
127{
128    va_list args;
129
130    va_start(args, fmt);
131    gss_verr (exitval, status, fmt, args);
132    va_end(args);
133}
134