xref: /freebsd/crypto/heimdal/lib/krb5/write_message.c (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
1 /*
2  * Copyright (c) 1997 - 2001 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 "krb5_locl.h"
35 
36 RCSID("$Id: write_message.c,v 1.7 2001/05/14 06:14:52 assar Exp $");
37 
38 krb5_error_code
39 krb5_write_message (krb5_context context,
40 		    krb5_pointer p_fd,
41 		    krb5_data *data)
42 {
43     u_int32_t len;
44     u_int8_t buf[4];
45     int ret;
46 
47     len = data->length;
48     _krb5_put_int(buf, len, 4);
49     if (krb5_net_write (context, p_fd, buf, 4) != 4
50 	|| krb5_net_write (context, p_fd, data->data, len) != len) {
51 	ret = errno;
52 	krb5_set_error_string (context, "write: %s", strerror(ret));
53 	return ret;
54     }
55     return 0;
56 }
57 
58 krb5_error_code
59 krb5_write_priv_message(krb5_context context,
60 			krb5_auth_context ac,
61 			krb5_pointer p_fd,
62 			krb5_data *data)
63 {
64     krb5_error_code ret;
65     krb5_data packet;
66 
67     ret = krb5_mk_priv (context, ac, data, &packet, NULL);
68     if(ret)
69 	return ret;
70     ret = krb5_write_message(context, p_fd, &packet);
71     krb5_data_free(&packet);
72     return ret;
73 }
74 
75 krb5_error_code
76 krb5_write_safe_message(krb5_context context,
77 			krb5_auth_context ac,
78 			krb5_boolean priv,
79 			krb5_pointer p_fd,
80 			krb5_data *data)
81 {
82     krb5_error_code ret;
83     krb5_data packet;
84     ret = krb5_mk_safe (context, ac, data, &packet, NULL);
85     if(ret)
86 	return ret;
87     ret = krb5_write_message(context, p_fd, &packet);
88     krb5_data_free(&packet);
89     return ret;
90 }
91