使用OpenSSL如何进行BASE64编解码?
我找到如下的编码方法,经测试确实可用,不知如何实现解码,望高手指点一二。
/*编码方法*/
#include <openssl/pem.h>
char *enbase64(const void *data, int data_len)
{
BIO *b64 = BIO_new(BIO_f_base64());
BIO *bio = BIO_new(BIO_s_mem());
bio = BIO_push(b64, bio);
BIO_set_flags(bio, BIO_FLAGS_BASE64_NO_NL);
BIO_write(bio, data, data_len);
BIO_ctrl(bio, BIO_CTRL_FLUSH, 0, NULL);
BUF_MEM *bptr = NULL;
BIO_get_mem_ptr(bio, &bptr);
size_t slen = bptr->length;
char *buffer = (char *)malloc(slen+1);
memcpy(buffer, bptr->data, slen);
buffer[slen] = '\0';
BIO_free_all(bio);
return buffer;
}