1 /* 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (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 OPENSSL_BUFFER_H 11 # define OPENSSL_BUFFER_H 12 # pragma once 13 14 # include <openssl/macros.h> 15 # ifndef OPENSSL_NO_DEPRECATED_3_0 16 # define HEADER_BUFFER_H 17 # endif 18 19 # include <openssl/types.h> 20 # ifndef OPENSSL_CRYPTO_H 21 # include <openssl/crypto.h> 22 # endif 23 # include <openssl/buffererr.h> 24 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 # include <stddef.h> 31 # include <sys/types.h> 32 33 # ifndef OPENSSL_NO_DEPRECATED_3_0 34 # define BUF_strdup(s) OPENSSL_strdup(s) 35 # define BUF_strndup(s, size) OPENSSL_strndup(s, size) 36 # define BUF_memdup(data, size) OPENSSL_memdup(data, size) 37 # define BUF_strlcpy(dst, src, size) OPENSSL_strlcpy(dst, src, size) 38 # define BUF_strlcat(dst, src, size) OPENSSL_strlcat(dst, src, size) 39 # define BUF_strnlen(str, maxlen) OPENSSL_strnlen(str, maxlen) 40 # endif 41 42 struct buf_mem_st { 43 size_t length; /* current number of bytes */ 44 char *data; 45 size_t max; /* size of buffer */ 46 unsigned long flags; 47 }; 48 49 # define BUF_MEM_FLAG_SECURE 0x01 50 51 BUF_MEM *BUF_MEM_new(void); 52 BUF_MEM *BUF_MEM_new_ex(unsigned long flags); 53 void BUF_MEM_free(BUF_MEM *a); 54 size_t BUF_MEM_grow(BUF_MEM *str, size_t len); 55 size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len); 56 void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz); 57 58 59 # ifdef __cplusplus 60 } 61 # endif 62 #endif 63