core-lightning/devtools/decodemsg.c
Rusty Russell 93cf28553d devtools/decodemsg: add --onion option for decoding onion errors.
This requires a tweak to generate-wire.py too, since it always called the
top-level routine 'print_message'.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-27 14:12:00 +02:00

37 lines
897 B
C

#include <ccan/err/err.h>
#include <ccan/opt/opt.h>
#include <common/decode_short_channel_ids.h>
#include <common/utils.h>
#include <devtools/gen_print_onion_wire.h>
#include <devtools/gen_print_wire.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
const u8 *m;
bool onion = false;
setup_locale();
opt_register_noarg("--onion", opt_set_bool, &onion,
"Decode an error message instead of a peer message");
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<hexmsg>"
"Decode a lightning spec wire message from hex.",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 2)
errx(1, "Need a hex message");
/* Arg is hex string */
m = tal_hexdata(NULL, argv[1], strlen(argv[1]));
if (!m)
errx(1, "'%s' is not valid hex", argv[1]);
if (onion)
printonion_type_message(m);
else
printwire_type_message(m);
return 0;
}