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Code Issues Releases Wiki Activity

fix(legacy): fix token error cases

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This commit is contained in:
Martin Novak 2022-11-10 13:35:15 +01:00
parent 865765db91
commit afce401fa2
1 changed files with 36 additions and 21 deletions
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57
legacy/firmware/ethereum_definitions.c
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@ -259,7 +259,25 @@ bool _get_EthereumNetworkInfo(
return true;
}
void _get_EthereumTokenInfo(
void _set_EthereumTokenInfo(const EthereumTokenInfo *ref_token, EthereumTokenInfo *token) {
// reset
memzero(token->symbol, sizeof(token->symbol));
token->decimals = 0;
memzero(token->address.bytes, sizeof(token->address.bytes));
token->address.size = 0;
token->chain_id = CHAIN_ID_UNKNOWN;
memzero(token->name, sizeof(token->name));
// copy data to token definition
strncpy(token->symbol, ref_token->symbol, sizeof(token->symbol) - 1);
token->decimals = ref_token->decimals;
memcpy(token->address.bytes, ref_token->address.bytes,
sizeof(token->address.bytes));
token->address.size = sizeof(token->address.bytes);
token->chain_id = ref_token->chain_id;
}
bool _get_EthereumTokenInfo(
const EthereumDefinitions_encoded_token_t *encoded_token,
const uint64_t ref_chain_id, const char *ref_address,
EthereumTokenInfo *token) {
@ -290,27 +308,22 @@ void _get_EthereumTokenInfo(
memmove(&token->symbol[1], &token->symbol, sizeof(token->symbol) - 2);
token->symbol[0] = ' ';
token->symbol[sizeof(token->symbol) - 1] = 0;
return;
return true;
} else {
fsm_sendFailure(FailureType_Failure_DataError,
_("Token definition mismatch"));
}
}
// decoding failed or token definition has different
// chain_id and/or address
_set_EthereumTokenInfo(UnknownToken, token);
return false;
}
// decoding did not happen or failed, so we have to copy the data to the
// result reset token definition
memzero(token->symbol, sizeof(token->symbol));
token->decimals = 0;
memzero(token->address.bytes, sizeof(token->address.bytes));
token->address.size = 0;
token->chain_id = CHAIN_ID_UNKNOWN;
memzero(token->name, sizeof(token->name));
// copy data to token definition
strncpy(token->symbol, builtin->symbol, sizeof(token->symbol) - 1);
token->decimals = builtin->decimals;
memcpy(token->address.bytes, builtin->address.bytes,
sizeof(token->address.bytes));
token->address.size = sizeof(token->address.bytes);
token->chain_id = builtin->chain_id;
// copy result
_set_EthereumTokenInfo(builtin, token);
return true;
}
const EthereumDefinitionsDecoded *get_EthereumDefinitionsDecoded(
@ -327,12 +340,14 @@ const EthereumDefinitionsDecoded *get_EthereumDefinitionsDecoded(
if (strncmp(defs.network.shortcut, UNKNOWN_NETWORK_SHORTCUT,
sizeof(defs.network.shortcut)) != 0) {
// we have found network definition, we can try to load token definition
_get_EthereumTokenInfo(encoded_token, ref_chain_id, ref_address,
&defs.token);
if (!_get_EthereumTokenInfo(encoded_token, ref_chain_id, ref_address,
&defs.token)) {
return NULL;
}
} else {
// if we did not find any network definition, set token definition to
// unknown token
_get_EthereumTokenInfo(NULL, CHAIN_ID_UNKNOWN, NULL, &defs.token);
_set_EthereumTokenInfo(UnknownToken, &defs.token);
}
return &defs;
}