core-lightning/devtools/mkencoded.c
Rusty Russell 531845971c gossipd: drop zlib support.
This was removed from the spec on Apr 25, 2022.  We stopped ever sending them
in 0.12.0 (2022-08-23).  Now we remove receive support.

Changelog-Protocol: Removed support for zlib-compressed short-channel-ids in query responses.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2024-07-10 12:21:19 +09:30

52 lines
1.3 KiB
C

/* Simple wrapper to create zlib or raw encodings of hex. */
#include "config.h"
#include <bitcoin/short_channel_id.h>
#include <ccan/err/err.h>
#include <ccan/str/hex/hex.h>
#include <common/decode_array.h>
#include <stdio.h>
static NORETURN void usage(void)
{
errx(1, "Usage: mkencoded <encoding> <hexstr>, OR\n"
"mkencoded --scids <encoding> <scid>...");
}
int main(int argc, char *argv[])
{
u8 encoding, *data;
setup_locale();
if (argv[1] && streq(argv[1], "--scids")) {
argv++;
argc--;
if (argc < 2)
usage();
data = tal_arr(NULL, u8, 0);
for (size_t i = 2; i < argc; i++) {
struct short_channel_id scid;
if (!short_channel_id_from_str(argv[i], strlen(argv[i]),
&scid))
errx(1, "Invalid short_channel_id %s", argv[i]);
towire_short_channel_id(&data, scid);
}
} else {
data = tal_hexdata(NULL, argv[2], strlen(argv[2]));
if (!data)
errx(1, "Invalid hex string %s", argv[2]);
}
if (!hex_decode(argv[1], strlen(argv[1]), &encoding, sizeof(encoding)))
errx(1, "Expected single hex byte not %s", argv[1]);
if (encoding == ARR_UNCOMPRESSED)
printf("%02x%s\n", encoding, tal_hex(NULL, data));
else if (encoding == ARR_ZLIB_DEPRECATED) {
errx(1, "ZLIB compression deprecated");
} else {
errx(1, "Unknown encoding %u", encoding);
}
return 0;
}