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 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 #include <stddef.h> 30 #include <sys/types.h> 31 32 #ifndef OPENSSL_NO_DEPRECATED_3_0 33 #define BUF_strdup(s) OPENSSL_strdup(s) 34 #define BUF_strndup(s, size) OPENSSL_strndup(s, size) 35 #define BUF_memdup(data, size) OPENSSL_memdup(data, size) 36 #define BUF_strlcpy(dst, src, size) OPENSSL_strlcpy(dst, src, size) 37 #define BUF_strlcat(dst, src, size) OPENSSL_strlcat(dst, src, size) 38 #define BUF_strnlen(str, maxlen) OPENSSL_strnlen(str, maxlen) 39 #endif 40 41 struct buf_mem_st { 42 size_t length; /* current number of bytes */ 43 char *data; 44 size_t max; /* size of buffer */ 45 unsigned long flags; 46 }; 47 48 #define BUF_MEM_FLAG_SECURE 0x01 49 50 BUF_MEM *BUF_MEM_new(void); 51 BUF_MEM *BUF_MEM_new_ex(unsigned long flags); 52 void BUF_MEM_free(BUF_MEM *a); 53 size_t BUF_MEM_grow(BUF_MEM *str, size_t len); 54 size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len); 55 void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 #endif 61