text: /* crypto/buffer/buffer.h */
  /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   * All rights reserved.
   *
   * This package is an SSL implementation written
   * by Eric Young (eay@cryptsoft.com).
   * The implementation was written so as to conform with Netscapes SSL.
   * 
   * This library is free for commercial and non-commercial use as long as
   * the following conditions are aheared to.  The following conditions
   * apply to all code found in this distribution, be it the RC4, RSA,
   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   * included with this distribution is covered by the same copyright terms
   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   * 
   * Copyright remains Eric Young's, and as such any Copyright notices in
   * the code are not to be removed.
   * If this package is used in a product, Eric Young should be given attribution
   * as the author of the parts of the library used.
   * This can be in the form of a textual message at program startup or
   * in documentation (online or textual) provided with the package.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    "This product includes cryptographic software written by
   *     Eric Young (eay@cryptsoft.com)"
   *    The word 'cryptographic' can be left out if the rouines from the library
   *    being used are not cryptographic related :-).
   * 4. If you include any Windows specific code (or a derivative thereof) from 
   *    the apps directory (application code) you must include an acknowledgement:
   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   * 
   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * 
   * The licence and distribution terms for any publically available version or
   * derivative of this code cannot be changed.  i.e. this code cannot simply be
   * copied and put under another distribution licence
   * [including the GNU Public Licence.]
   */
  
  #ifndef HEADER_BUFFER_H
  #define HEADER_BUFFER_H
  
  #include "ossl_typ.h"
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <stddef.h>
  
  #if !defined(NO_SYS_TYPES_H)
  #include <sys/types.h>
  #endif
  
  /* Already declared in ossl_typ.h */
  /* typedef struct buf_mem_st BUF_MEM; */
  
  struct buf_mem_st
  	{
  	size_t length;	/* current number of bytes */
  	char *data;
  	size_t max;	/* size of buffer */
  	};
  
  BUF_MEM *BUF_MEM_new(void);
  void	BUF_MEM_free(BUF_MEM *a);
  int	BUF_MEM_grow(BUF_MEM *str, size_t len);
  int	BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
  char *	BUF_strdup(const char *str);
  char *	BUF_strndup(const char *str, size_t siz);
  void *	BUF_memdup(const void *data, size_t siz);
  void	BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
  
  /* safe string functions */
  size_t BUF_strlcpy(char *dst,const char *src,size_t siz);
  size_t BUF_strlcat(char *dst,const char *src,size_t siz);
  
  
  /* BEGIN ERROR CODES */
  /* The following lines are auto generated by the script mkerr.pl. Any changes
   * made after this point may be overwritten when the script is next run.
   */
  void ERR_load_BUF_strings(void);
  
  /* Error codes for the BUF functions. */
  
  /* Function codes. */
  #define BUF_F_BUF_MEMDUP				 103
  #define BUF_F_BUF_MEM_GROW				 100
  #define BUF_F_BUF_MEM_GROW_CLEAN			 105
  #define BUF_F_BUF_MEM_NEW				 101
  #define BUF_F_BUF_STRDUP				 102
  #define BUF_F_BUF_STRNDUP				 104
  
  /* Reason codes. */
  
  #ifdef  __cplusplus
  }
  #endif
  #endif
  