xref: /freebsd/crypto/heimdal/lib/krb5/write_message.c (revision 2e3f49888ec8851bafb22011533217487764fdb0)
1 /*
2  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
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 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
37 krb5_write_message (krb5_context context,
38 		    krb5_pointer p_fd,
39 		    krb5_data *data)
40 {
41     uint32_t len;
42     uint8_t buf[4];
43     int ret;
44 
45     len = data->length;
46     _krb5_put_int(buf, len, 4);
47     if (krb5_net_write (context, p_fd, buf, 4) != 4
48 	|| krb5_net_write (context, p_fd, data->data, len) != len) {
49 	ret = errno;
50 	krb5_set_error_message (context, ret, "write: %s", strerror(ret));
51 	return ret;
52     }
53     return 0;
54 }
55 
56 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
57 krb5_write_priv_message(krb5_context context,
58 			krb5_auth_context ac,
59 			krb5_pointer p_fd,
60 			krb5_data *data)
61 {
62     krb5_error_code ret;
63     krb5_data packet;
64 
65     ret = krb5_mk_priv (context, ac, data, &packet, NULL);
66     if(ret)
67 	return ret;
68     ret = krb5_write_message(context, p_fd, &packet);
69     krb5_data_free(&packet);
70     return ret;
71 }
72 
73 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
74 krb5_write_safe_message(krb5_context context,
75 			krb5_auth_context ac,
76 			krb5_pointer p_fd,
77 			krb5_data *data)
78 {
79     krb5_error_code ret;
80     krb5_data packet;
81     ret = krb5_mk_safe (context, ac, data, &packet, NULL);
82     if(ret)
83 	return ret;
84     ret = krb5_write_message(context, p_fd, &packet);
85     krb5_data_free(&packet);
86     return ret;
87 }
88