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      1 /* $OpenBSD: bufbn.c,v 1.12 2014/04/30 05:29:56 djm Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2012 Damien Miller <djm (at) mindrot.org>
      5  *
      6  * 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.
      9  *
     10  * 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.
     17  */
     18 
     19 /* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
     20 
     21 #include "includes.h"
     22 
     23 #ifdef WITH_OPENSSL
     24 
     25 #include <sys/types.h>
     26 
     27 #include "buffer.h"
     28 #include "log.h"
     29 #include "ssherr.h"
     30 
     31 #ifdef WITH_SSH1
     32 int
     33 buffer_put_bignum_ret(Buffer *buffer, const BIGNUM *value)
     34 {
     35 	int ret;
     36 
     37 	if ((ret = sshbuf_put_bignum1(buffer, value)) != 0) {
     38 		error("%s: %s", __func__, ssh_err(ret));
     39 		return -1;
     40 	}
     41 	return 0;
     42 }
     43 
     44 void
     45 buffer_put_bignum(Buffer *buffer, const BIGNUM *value)
     46 {
     47 	if (buffer_put_bignum_ret(buffer, value) == -1)
     48 		fatal("%s: buffer error", __func__);
     49 }
     50 
     51 int
     52 buffer_get_bignum_ret(Buffer *buffer, BIGNUM *value)
     53 {
     54 	int ret;
     55 
     56 	if ((ret = sshbuf_get_bignum1(buffer, value)) != 0) {
     57 		error("%s: %s", __func__, ssh_err(ret));
     58 		return -1;
     59 	}
     60 	return 0;
     61 }
     62 
     63 void
     64 buffer_get_bignum(Buffer *buffer, BIGNUM *value)
     65 {
     66 	if (buffer_get_bignum_ret(buffer, value) == -1)
     67 		fatal("%s: buffer error", __func__);
     68 }
     69 #endif /* WITH_SSH1 */
     70 
     71 int
     72 buffer_put_bignum2_ret(Buffer *buffer, const BIGNUM *value)
     73 {
     74 	int ret;
     75 
     76 	if ((ret = sshbuf_put_bignum2(buffer, value)) != 0) {
     77 		error("%s: %s", __func__, ssh_err(ret));
     78 		return -1;
     79 	}
     80 	return 0;
     81 }
     82 
     83 void
     84 buffer_put_bignum2(Buffer *buffer, const BIGNUM *value)
     85 {
     86 	if (buffer_put_bignum2_ret(buffer, value) == -1)
     87 		fatal("%s: buffer error", __func__);
     88 }
     89 
     90 int
     91 buffer_get_bignum2_ret(Buffer *buffer, BIGNUM *value)
     92 {
     93 	int ret;
     94 
     95 	if ((ret = sshbuf_get_bignum2(buffer, value)) != 0) {
     96 		error("%s: %s", __func__, ssh_err(ret));
     97 		return -1;
     98 	}
     99 	return 0;
    100 }
    101 
    102 void
    103 buffer_get_bignum2(Buffer *buffer, BIGNUM *value)
    104 {
    105 	if (buffer_get_bignum2_ret(buffer, value) == -1)
    106 		fatal("%s: buffer error", __func__);
    107 }
    108 
    109 #endif /* WITH_OPENSSL */
    110