56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/**
|
|
* Some code to help with the datastore / blockstore interface
|
|
*/
|
|
#include "libp2p/crypto/encoding/base32.h"
|
|
#include "ipfs/datastore/ds_helper.h"
|
|
/**
|
|
* Generate a key based on the passed in binary_array
|
|
* @param binary_array what to base the key on
|
|
* @param array_length the size of the binary array
|
|
* @param results where the key will be put
|
|
* @param max_results_length the size of the results buffer
|
|
* @param results_length the length of the generated key
|
|
* @returns true(1) on success
|
|
*/
|
|
int ipfs_datastore_helper_ds_key_from_binary(unsigned char* binary_array, size_t array_length,
|
|
unsigned char* results, size_t max_results_length, size_t* results_length) {
|
|
|
|
size_t encoded_length = libp2p_crypto_encoding_base32_encode_size(array_length);
|
|
if (encoded_length > max_results_length)
|
|
return 0;
|
|
|
|
*results_length = max_results_length;
|
|
int retVal = libp2p_crypto_encoding_base32_encode(binary_array, array_length, results, results_length);
|
|
if (retVal == 0) {
|
|
*results_length = 0;
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Generate a binary array based on the passed in datastore key
|
|
* @param ds_key the base32 encoded key
|
|
* @param key_length the length of the base32 "string"
|
|
* @param binary_array where to put the decoded value
|
|
* @param max_binary_array_length the memory size of binary_array
|
|
* @param completed_binary_array_length the length of what was written to the binary_array
|
|
* @returns true(1) on success
|
|
*/
|
|
int ipfs_datastore_helper_binary_from_ds_key(unsigned char* ds_key, size_t key_length, unsigned char* binary_array,
|
|
size_t max_binary_array_length, size_t* completed_binary_array_length) {
|
|
|
|
size_t decoded_length = libp2p_crypto_encoding_base32_decode_size(key_length);
|
|
if (decoded_length > max_binary_array_length)
|
|
return 0;
|
|
|
|
*completed_binary_array_length = max_binary_array_length;
|
|
int retVal = libp2p_crypto_encoding_base32_decode(ds_key, key_length, binary_array, completed_binary_array_length);
|
|
if (retVal == 0) {
|
|
*completed_binary_array_length = 0;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|