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bitcoind: properly handle spent outputs in gettxout

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exit status is not enough to detect spent outputs. gettxout will return a
success exit code and 0 bytes.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2018-01-13 13:56:38 -08:00
committed by Rusty Russell
parent f27013c338
commit 3c0d2813a0
1 changed files with 3 additions and 1 deletions
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4
lightningd/bitcoind.c
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@@ -432,7 +432,9 @@ static void process_gettxout(struct bitcoin_cli *bcli)
struct bitcoin_tx_output out;
bool valid;
if (*bcli->exitstatus != 0) {
/* As of at least v0.15.1.0, bitcoind returns "success" but an empty
string on a spent gettxout */
if (*bcli->exitstatus != 0 || bcli->output_bytes == 0) {
log_debug(bcli->bitcoind->log, "%s: not unspent output?",
bcli_args(bcli));
tal_free(go);