// Reads MessagePack bin bytes and outputs a JSON base64 string
static bool base64_bin(mpack_reader_t* reader, yajl_gen gen, options_t* options, uint32_t len, bool prefix) {
uint32_t new_len = base64_len(len) + (prefix ? strlen(b64_str) : 0);
char* output = (char*)malloc(new_len);
bool ret = base64(reader, gen, options, len, output, output, prefix);
mpack_done_bin(reader);
free(output);
return ret;
}
/** Decode a base64-encoded string
* @param[in] data The base64-encoded string
* @param[in] len Length of the base64-encoded string
* @param[out] obuf If obuf is not set to NULL, store the decoded data in obuf. Otherwise, the decoded data is stored in a dynamically-allocated buffer.
* @param[out] olen The length of the decoded data
* @return The base64-decoded data
*/
void *cl_base64_decode(char *data, size_t len, void *obuf, size_t *olen, int oneline)
{
BIO *bio, *b64;
void *buf;
buf = (obuf) ? obuf : malloc(base64_len(data, len)+1);
if (!(buf))
return NULL;
b64 = BIO_new(BIO_f_base64());
if (!(b64)) {
if (!(obuf))
free(buf);
return NULL;
}
bio = BIO_new_mem_buf(data, len);
if (!(bio)) {
BIO_free(b64);
if (!(obuf))
free(buf);
return NULL;
}
bio = BIO_push(b64, bio);
if (oneline)
BIO_set_flags(bio, BIO_FLAGS_BASE64_NO_NL);
*olen = BIO_read(bio, buf, base64_len(data, len));
BIO_free_all(bio);
return buf;
}
// Reads MessagePack ext bytes and outputs a JSON base64 string
static bool base64_ext(mpack_reader_t* reader, yajl_gen gen, options_t* options, int8_t exttype, uint32_t len) {
uint32_t new_len = base64_len(len) + strlen(ext_str) + 5 + strlen(b64_str);
char* output = (char*)malloc(new_len);
char* p = output;
strcpy(p, ext_str);
p += strlen(ext_str);
sprintf(p, "%i", exttype);
p += strlen(p);
*p++ = ':';
bool ret = base64(reader, gen, options, len, output, p, true);
mpack_done_ext(reader);
free(output);
return ret;
}
