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@ -16,6 +16,8 @@ |
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static const char *b58chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"; |
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static const char *b58chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"; |
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/* Take a bitcoin address and do some sanity checks on it, then send it to
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* bitcoind to see if it's a valid address */ |
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bool validate_address(connsock_t *cs, const char *address) |
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bool validate_address(connsock_t *cs, const char *address) |
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{ |
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{ |
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json_t *val, *res_val, *valid_val; |
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json_t *val, *res_val, *valid_val; |
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@ -76,6 +78,8 @@ out: |
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return ret; |
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return ret; |
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} |
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} |
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/* Distill down a set of transactions into an efficient tree arrangement for
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* stratum messages and fast work assembly. */ |
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static bool gbt_merkle_bins(gbtbase_t *gbt, json_t *transaction_arr) |
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static bool gbt_merkle_bins(gbtbase_t *gbt, json_t *transaction_arr) |
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{ |
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{ |
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int i, j, binleft, binlen; |
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int i, j, binleft, binlen; |
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@ -166,6 +170,9 @@ static bool gbt_merkle_bins(gbtbase_t *gbt, json_t *transaction_arr) |
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static const char *gbt_req = "{\"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": [\"coinbasetxn\", \"workid\", \"coinbase/append\"]}]}\n"; |
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static const char *gbt_req = "{\"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": [\"coinbasetxn\", \"workid\", \"coinbase/append\"]}]}\n"; |
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/* Request getblocktemplate from bitcoind already connected with a connsock_t
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* and then summarise the information to the most efficient set of data |
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* required to assemble a mining template, storing it in a gbtbase_t structure */ |
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bool gen_gbtbase(connsock_t *cs, gbtbase_t *gbt) |
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bool gen_gbtbase(connsock_t *cs, gbtbase_t *gbt) |
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{ |
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{ |
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json_t *transaction_arr, *coinbase_aux, *res_val, *val; |
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json_t *transaction_arr, *coinbase_aux, *res_val, *val; |
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@ -188,7 +195,7 @@ bool gen_gbtbase(connsock_t *cs, gbtbase_t *gbt) |
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res_val = json_object_get(val, "result"); |
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res_val = json_object_get(val, "result"); |
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if (!res_val) { |
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if (!res_val) { |
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LOGWARNING("Failed to get result in json response to getblocktemplate"); |
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LOGWARNING("Failed to get result in json response to getblocktemplate"); |
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return ret; |
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goto out; |
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} |
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} |
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previousblockhash = json_string_value(json_object_get(res_val, "previousblockhash")); |
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previousblockhash = json_string_value(json_object_get(res_val, "previousblockhash")); |
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@ -224,7 +231,92 @@ bool gen_gbtbase(connsock_t *cs, gbtbase_t *gbt) |
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gbt->height = height; |
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gbt->height = height; |
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out: |
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out: |
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if (res_val) |
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json_decref(val); |
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json_decref(res_val); |
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return ret; |
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} |
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static const char *blockcount_req = "{\"method\": \"getblockcount\"}\n"; |
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/* Request getblockcount from bitcoind, returning the count or -1 if the call
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* fails. */ |
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int get_blockcount(connsock_t *cs) |
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{ |
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json_t *val, *res_val; |
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int ret = -1; |
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val = json_rpc_call(cs, blockcount_req); |
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if (!val) { |
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LOGWARNING("Failed to get valid json response to getblockcount"); |
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return ret; |
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} |
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res_val = json_object_get(val, "result"); |
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if (!res_val) { |
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LOGWARNING("Failed to get result in json response to getblockcount"); |
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goto out; |
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} |
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ret = json_integer_value(res_val); |
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out: |
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json_decref(val); |
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return ret; |
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} |
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/* Request getblockhash from bitcoind for height, returning a freshly allocated
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* string or NULL if it fails. */ |
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char *get_blockhash(connsock_t *cs, int height) |
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{ |
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char rpc_req[128], *ret = NULL; |
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json_t *val, *res_val; |
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const char *res_ret; |
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sprintf(rpc_req, "{\"method\": \"getblockhash\", \"params\": [%d]}\n", height); |
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val = json_rpc_call(cs, rpc_req); |
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if (!val) { |
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LOGWARNING("Failed to get valid json response to getblockhash"); |
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return ret; |
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} |
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res_val = json_object_get(val, "result"); |
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if (!res_val) { |
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LOGWARNING("Failed to get result in json response to getblockhash"); |
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goto out; |
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} |
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res_ret = json_string_value(res_val); |
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if (!res_ret || !strlen(res_ret)) { |
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LOGWARNING("Got null string in result to getblockhash"); |
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goto out; |
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} |
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ret = strdup(res_ret); |
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out: |
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json_decref(val); |
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return ret; |
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} |
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static const char *bestblockhash_req = "{\"method\": \"getbestblockhash\"}\n"; |
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/* Request getbestblockhash from bitcoind, returning a freshly allocated
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* string or NULL if it fails. bitcoind 0.9+ only */ |
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char *get_bestblockhash(connsock_t *cs) |
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{ |
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json_t *val, *res_val; |
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const char *res_ret; |
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char *ret = NULL; |
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val = json_rpc_call(cs, bestblockhash_req); |
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if (!val) { |
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LOGWARNING("Failed to get valid json response to getbestblockhash"); |
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return ret; |
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} |
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res_val = json_object_get(val, "result"); |
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if (!res_val) { |
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LOGWARNING("Failed to get result in json response to getbestblockhash"); |
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goto out; |
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} |
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res_ret = json_string_value(res_val); |
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if (!res_ret || !strlen(res_ret)) { |
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LOGWARNING("Got null string in result to getbestblockhash"); |
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goto out; |
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} |
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ret = strdup(res_ret); |
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out: |
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json_decref(val); |
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return ret; |
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return ret; |
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} |
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} |
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