crypto/openssh/bufec.c

   1 /* $OpenBSD: bufec.c,v 1.4 2014/04/30 05:29:56 djm Exp $ */
   2
   3 /*
   4  * Copyright (c) 2012 Damien Miller <djm@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 #include <sys/types.h>
  24
  25 #include "buffer.h"
  26 #include "log.h"
  27 #include "ssherr.h"
  28
  29 #ifdef OPENSSL_HAS_ECC
  30
  31 int
  32 buffer_put_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve,
  33     const EC_POINT *point)
  34 {
  35         int ret;
  36
  37         if ((ret = sshbuf_put_ec(buffer, point, curve)) != 0) {
  38                 error("%s: %s", __func__, ssh_err(ret));
  39                 return -1;
  40         }
  41         return 0;
  42 }
  43
  44 void
  45 buffer_put_ecpoint(Buffer *buffer, const EC_GROUP *curve,
  46     const EC_POINT *point)
  47 {
  48         if (buffer_put_ecpoint_ret(buffer, curve, point) == -1)
  49                 fatal("%s: buffer error", __func__);
  50 }
  51
  52 int
  53 buffer_get_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve,
  54     EC_POINT *point)
  55 {
  56         int ret;
  57
  58         if ((ret = sshbuf_get_ec(buffer, point, curve)) != 0) {
  59                 error("%s: %s", __func__, ssh_err(ret));
  60                 return -1;
  61         }
  62         return 0;
  63 }
  64
  65 void
  66 buffer_get_ecpoint(Buffer *buffer, const EC_GROUP *curve,
  67     EC_POINT *point)
  68 {
  69         if (buffer_get_ecpoint_ret(buffer, curve, point) == -1)
  70                 fatal("%s: buffer error", __func__);
  71 }
  72
  73 #endif /* OPENSSL_HAS_ECC */
  74