include/openssl/buffer.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef HEADER_BUFFER_H
  11 # define HEADER_BUFFER_H
  12
  13 # include <openssl/ossl_typ.h>
  14 # ifndef HEADER_CRYPTO_H
  15 #  include <openssl/crypto.h>
  16 # endif
  17 # include <openssl/buffererr.h>
  18
  19
  20 #ifdef  __cplusplus
  21 extern "C" {
  22 #endif
  23
  24 # include <stddef.h>
  25 # include <sys/types.h>
  26
  27 /*
  28  * These names are outdated as of OpenSSL 1.1; a future release
  29  * will move them to be deprecated.
  30  */
  31 # define BUF_strdup(s) OPENSSL_strdup(s)
  32 # define BUF_strndup(s, size) OPENSSL_strndup(s, size)
  33 # define BUF_memdup(data, size) OPENSSL_memdup(data, size)
  34 # define BUF_strlcpy(dst, src, size)  OPENSSL_strlcpy(dst, src, size)
  35 # define BUF_strlcat(dst, src, size) OPENSSL_strlcat(dst, src, size)
  36 # define BUF_strnlen(str, maxlen) OPENSSL_strnlen(str, maxlen)
  37
  38 struct buf_mem_st {
  39     size_t length;              /* current number of bytes */
  40     char *data;
  41     size_t max;                 /* size of buffer */
  42     unsigned long flags;
  43 };
  44
  45 # define BUF_MEM_FLAG_SECURE  0x01
  46
  47 BUF_MEM *BUF_MEM_new(void);
  48 BUF_MEM *BUF_MEM_new_ex(unsigned long flags);
  49 void BUF_MEM_free(BUF_MEM *a);
  50 size_t BUF_MEM_grow(BUF_MEM *str, size_t len);
  51 size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
  52 void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
  53
  54 int ERR_load_BUF_strings(void);
  55
  56 # ifdef  __cplusplus
  57 }
  58 # endif
  59 #endif