mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 00:46:17 +08:00
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
|
|
* Copyright 2014-2021 The GmSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
|
|
#ifndef GMSSL_BASE64_H
|
|
#define GMSSL_BASE64_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct {
|
|
/* number saved in a partial encode/decode */
|
|
int num;
|
|
/*
|
|
* The length is either the output line length (in input bytes) or the
|
|
* shortest input line length that is ok. Once decoding begins, the
|
|
* length is adjusted up each time a longer line is decoded
|
|
*/
|
|
int length;
|
|
/* data to encode */
|
|
unsigned char enc_data[80];
|
|
/* number read on current line */
|
|
int line_num;
|
|
int expect_nl;
|
|
} BASE64_CTX;
|
|
|
|
# define BASE64_ENCODE_LENGTH(l) (((l+2)/3*4)+(l/48+1)*2+80)
|
|
# define BASE64_DECODE_LENGTH(l) ((l+3)/4*3+80)
|
|
|
|
|
|
void base64_encode_init(BASE64_CTX *ctx);
|
|
int base64_encode_update(BASE64_CTX *ctx, const uint8_t *in, int inlen, uint8_t *out, int *outlen);
|
|
void base64_encode_finish(BASE64_CTX *ctx, uint8_t *out, int *outlen);
|
|
|
|
void base64_decode_init(BASE64_CTX *ctx);
|
|
int base64_decode_update(BASE64_CTX *ctx, const uint8_t *in, int inlen, uint8_t *out, int *outlen);
|
|
int base64_decode_finish(BASE64_CTX *ctx, uint8_t *out, int *outlen);
|
|
|
|
|
|
int base64_encode_block(unsigned char *t, const unsigned char *f, int dlen);
|
|
int base64_decode_block(unsigned char *t, const unsigned char *f, int n);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|