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lightningd: Don't accept 0sat for closing fee step

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We must give up something on each negotiation step. Can't take 0 satoshi
as an argument.

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This commit is contained in:
Vasil Dimov 2020-04-07 11:49:07 +02:00 • committed by neil saitug
parent 662ac26d0c
commit d2165ff4d8
1 changed files with 9 additions and 3 deletions
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12
lightningd/peer_control.c
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@ -1370,9 +1370,15 @@ static struct command_result *json_close(struct command *cmd,
} else {
channel->closing_fee_negotiation_step =
strtoull(fee_negotiation_step_str, &end, 10);
if (*end == '%') {
if (channel->closing_fee_negotiation_step < 1 ||
channel->closing_fee_negotiation_step > 100)
if (channel->closing_fee_negotiation_step == 0)
return command_fail(
cmd, JSONRPC2_INVALID_PARAMS,
"Wrong value given for fee_negotiation_step: "
"\"%s\", must be positive",
fee_negotiation_step_str);
else if (*end == '%') {
if (channel->closing_fee_negotiation_step > 100)
return command_fail(
cmd, JSONRPC2_INVALID_PARAMS,
"Wrong value given for "