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devtools/onion: fix --decode

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Add odd-length string can never be valid hex!

In addition, don't try to print the next hop if there isn't one, but
always print the (raw) payload.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2019-07-17 07:19:14 +09:30 committed by neil saitug
parent cd6d0ccde7
commit 1b8adabd4f
1 changed files with 8 additions and 6 deletions
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14
devtools/onion.c
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@ -62,7 +62,7 @@ static void do_decode(int argc, char **argv)
struct privkey seckey;
const tal_t *ctx = talz(NULL, tal_t);
u8 serialized[TOTAL_PACKET_SIZE];
char hextemp[2 * sizeof(serialized) + 1];
char hextemp[2 * sizeof(serialized)];
memset(hextemp, 0, sizeof(hextemp));
u8 shared_secret[32];
u8 assocdata[32];
@ -97,11 +97,13 @@ static void do_decode(int argc, char **argv)
if (!step || !step->next)
errx(1, "Error processing message.");
u8 *ser = serialize_onionpacket(ctx, step->next);
if (!ser)
errx(1, "Error serializing message.");
printf("%s\n", tal_hex(ctx, ser));
printf("payload=%s\n", tal_hex(ctx, step->raw_payload));
if (step->nextcase == ONION_FORWARD) {
u8 *ser = serialize_onionpacket(ctx, step->next);
if (!ser)
errx(1, "Error serializing message.");
printf("next=%s\n", tal_hex(ctx, ser));
}
tal_free(ctx);
}