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      1 /*
      2  * Copyright 1995-2018 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     28  * These names are outdated as of OpenSSL 1.1; a future release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 
     55 # ifdef  __cplusplus
     56 }
     57 # endif
     58 #endif
     59