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Damien Miller05e82c32014-05-15 14:33:43 +10001/* $OpenBSD: bufbn.c,v 1.12 2014/04/30 05:29:56 djm Exp $ */
2
Damien Miller58629fa2006-04-23 12:08:19 +10003/*
Damien Miller05e82c32014-05-15 14:33:43 +10004 * Copyright (c) 2012 Damien Miller <djm@mindrot.org>
Damien Miller58629fa2006-04-23 12:08:19 +10005 *
Damien Miller05e82c32014-05-15 14:33:43 +10006 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
Damien Miller58629fa2006-04-23 12:08:19 +10009 *
Damien Miller05e82c32014-05-15 14:33:43 +100010 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Damien Miller58629fa2006-04-23 12:08:19 +100017 */
18
Damien Miller05e82c32014-05-15 14:33:43 +100019/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
Damien Miller58629fa2006-04-23 12:08:19 +100020
Damien Millerd7834352006-08-05 12:39:39 +100021#include <sys/types.h>
22
Damien Millerd7834352006-08-05 12:39:39 +100023#include "buffer.h"
Damien Miller58629fa2006-04-23 12:08:19 +100024#include "log.h"
Damien Miller05e82c32014-05-15 14:33:43 +100025#include "ssherr.h"
Damien Miller58629fa2006-04-23 12:08:19 +100026
Damien Miller58629fa2006-04-23 12:08:19 +100027int
28buffer_put_bignum_ret(Buffer *buffer, const BIGNUM *value)
29{
Damien Miller05e82c32014-05-15 14:33:43 +100030 int ret;
Damien Miller58629fa2006-04-23 12:08:19 +100031
Damien Miller05e82c32014-05-15 14:33:43 +100032 if ((ret = sshbuf_put_bignum1(buffer, value)) != 0) {
33 error("%s: %s", __func__, ssh_err(ret));
34 return -1;
Damien Miller58629fa2006-04-23 12:08:19 +100035 }
Damien Miller05e82c32014-05-15 14:33:43 +100036 return 0;
Damien Miller58629fa2006-04-23 12:08:19 +100037}
38
39void
40buffer_put_bignum(Buffer *buffer, const BIGNUM *value)
41{
42 if (buffer_put_bignum_ret(buffer, value) == -1)
Damien Miller05e82c32014-05-15 14:33:43 +100043 fatal("%s: buffer error", __func__);
Damien Miller58629fa2006-04-23 12:08:19 +100044}
45
Damien Miller58629fa2006-04-23 12:08:19 +100046int
47buffer_get_bignum_ret(Buffer *buffer, BIGNUM *value)
48{
Damien Miller05e82c32014-05-15 14:33:43 +100049 int ret;
Damien Miller58629fa2006-04-23 12:08:19 +100050
Damien Miller05e82c32014-05-15 14:33:43 +100051 if ((ret = sshbuf_get_bignum1(buffer, value)) != 0) {
52 error("%s: %s", __func__, ssh_err(ret));
53 return -1;
Damien Miller58629fa2006-04-23 12:08:19 +100054 }
Damien Miller05e82c32014-05-15 14:33:43 +100055 return 0;
Damien Miller58629fa2006-04-23 12:08:19 +100056}
57
58void
59buffer_get_bignum(Buffer *buffer, BIGNUM *value)
60{
61 if (buffer_get_bignum_ret(buffer, value) == -1)
Damien Miller05e82c32014-05-15 14:33:43 +100062 fatal("%s: buffer error", __func__);
Damien Miller58629fa2006-04-23 12:08:19 +100063}
64
Damien Miller58629fa2006-04-23 12:08:19 +100065int
66buffer_put_bignum2_ret(Buffer *buffer, const BIGNUM *value)
67{
Damien Miller05e82c32014-05-15 14:33:43 +100068 int ret;
Damien Miller58629fa2006-04-23 12:08:19 +100069
Damien Miller05e82c32014-05-15 14:33:43 +100070 if ((ret = sshbuf_put_bignum2(buffer, value)) != 0) {
71 error("%s: %s", __func__, ssh_err(ret));
72 return -1;
Damien Miller58629fa2006-04-23 12:08:19 +100073 }
Damien Miller05e82c32014-05-15 14:33:43 +100074 return 0;
Damien Miller58629fa2006-04-23 12:08:19 +100075}
76
77void
78buffer_put_bignum2(Buffer *buffer, const BIGNUM *value)
79{
80 if (buffer_put_bignum2_ret(buffer, value) == -1)
Damien Miller05e82c32014-05-15 14:33:43 +100081 fatal("%s: buffer error", __func__);
Damien Miller58629fa2006-04-23 12:08:19 +100082}
83
84int
85buffer_get_bignum2_ret(Buffer *buffer, BIGNUM *value)
86{
Damien Miller05e82c32014-05-15 14:33:43 +100087 int ret;
Damien Miller58629fa2006-04-23 12:08:19 +100088
Damien Miller05e82c32014-05-15 14:33:43 +100089 if ((ret = sshbuf_get_bignum2(buffer, value)) != 0) {
90 error("%s: %s", __func__, ssh_err(ret));
91 return -1;
Damien Miller58629fa2006-04-23 12:08:19 +100092 }
Damien Miller05e82c32014-05-15 14:33:43 +100093 return 0;
Damien Miller58629fa2006-04-23 12:08:19 +100094}
95
96void
97buffer_get_bignum2(Buffer *buffer, BIGNUM *value)
98{
99 if (buffer_get_bignum2_ret(buffer, value) == -1)
Damien Miller05e82c32014-05-15 14:33:43 +1000100 fatal("%s: buffer error", __func__);
Damien Miller58629fa2006-04-23 12:08:19 +1000101}