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devtools/decodemsg: add --onion option for decoding onion errors.

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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>
This commit is contained in:
Rusty Russell
2018-07-27 06:50:37 +09:30
committed by Christian Decker
parent ef33dd2998
commit 93cf28553d
3 changed files with 29 additions and 14 deletions
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28
devtools/decodemsg.c
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@@ -1,28 +1,36 @@
#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>
static void usage(void)
{
fprintf(stderr, "Usage: decodemsg <msg-in-hex>\n");
exit(1);
}
int main(int argc, char *argv[])
{
const u8 *m;
bool onion = false;
setup_locale();
if (argc != 2)
usage();
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.");
/* Last arg is hex string */
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]);
print_message(m);
if (onion)
printonion_type_message(m);
else
printwire_type_message(m);
return 0;
}