Home | History | Annotate | Line # | Download | only in src 
      1 /*
      2  * Copyright (c) 2018 Yubico AB. All rights reserved.
      3  * Use of this source code is governed by a BSD-style
      4  * license that can be found in the LICENSE file.
      5  * SPDX-License-Identifier: BSD-2-Clause
      6  */
      7 
      8 #include "fido.h"
      9 
     10 int
     11 fido_buf_read(const unsigned char **buf, size_t *len, void *dst, size_t count)
     12 {
     13 	if (count > *len)
     14 		return (-1);
     15 
     16 	memcpy(dst, *buf, count);
     17 	*buf += count;
     18 	*len -= count;
     19 
     20 	return (0);
     21 }
     22 
     23 int
     24 fido_buf_write(unsigned char **buf, size_t *len, const void *src, size_t count)
     25 {
     26 	if (count > *len)
     27 		return (-1);
     28 
     29 	memcpy(*buf, src, count);
     30 	*buf += count;
     31 	*len -= count;
     32 
     33 	return (0);
     34 }
     35