flywithu/Learning-Bitcoin-from-the-Command-Line
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added fingerprint

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Shannon Appelcline 2020-08-26 13:28:44 -10:00 committed by GitHub
parent 143661b7fe
commit fead71b344
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 24 additions and 4 deletions
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26
src/16_7_genhd_for_import.c
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@ -113,7 +113,22 @@ int main(void) {
char *segwit;
lw_response = wally_bip32_key_to_addr_segwit(key_address,"tb",0,&segwit);
/* 6. Output in JSON */
/* 6. Generate a Fingerprint */
char account_fingerprint[BIP32_KEY_FINGERPRINT_LEN];
lw_response = bip32_key_get_fingerprint(key_account,account_fingerprint,BIP32_KEY_FINGERPRINT_LEN);
if (lw_response) {
printf("Error: root bip32_key_get_fingerprint failed: %d\n",lw_response);
exit(-1);
}
char *fp_hex;
lw_response = wally_hex_from_bytes(account_fingerprint,BIP32_KEY_FINGERPRINT_LEN,&fp_hex);
/* 7. Output in JSON */
json_t *outputparams = NULL;
outputparams = json_object();
@ -121,7 +136,12 @@ int main(void) {
json_object_set(outputparams, "mnemonic", json_string(mnem));
json_object_set(outputparams, "account-xprv", json_string(a_xprv));
json_object_set(outputparams, "address", json_string(segwit));
json_object_set_new(outputparams, "derivation", json_string("[m/84h/1h/0h/0/0]"));
char derivation[BIP32_KEY_FINGERPRINT_LEN+3+sizeof("84h/1h/0h")];
sprintf(derivation,"[%s/%s]",fp_hex,"84h/1h/0h");
json_object_set(outputparams, "derivation", json_string(derivation));
printf ("%s\n", json_dumps(outputparams, JSON_INDENT(2)));
@ -135,7 +155,7 @@ int main(void) {
bip32_key_free(key_root);
wally_free_string(a_xprv);
wally_free_string(fp_hex);
wally_free_string(mnem);
wally_cleanup(0);