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65 lines
1.5 KiB
65 lines
1.5 KiB
#include <ccan/err/err.h>
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#include <ccan/opt/opt.h>
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#include <ccan/tal/grab_file/grab_file.h>
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#include <common/decode_short_channel_ids.h>
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#include <common/utils.h>
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#include <devtools/gen_print_onion_wire.h>
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#include <devtools/gen_print_wire.h>
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#include <stdio.h>
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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const u8 *m;
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bool onion = false;
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setup_locale();
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opt_register_noarg("--onion", opt_set_bool, &onion,
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"Decode an error message instead of a peer message");
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opt_register_noarg("--help|-h", opt_usage_and_exit,
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"[<hexmsg>]"
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"Decode a lightning spec wire message from hex, or a series of messages from stdin",
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"Print this message.");
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opt_parse(&argc, argv, opt_log_stderr_exit);
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if (argc > 2)
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opt_usage_and_exit("Too many arguments");
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if (argc == 2) {
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/* Arg is hex string */
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m = tal_hexdata(NULL, argv[1], strlen(argv[1]));
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if (!m)
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errx(1, "'%s' is not valid hex", argv[1]);
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if (onion)
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printonion_type_message(m);
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else
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printwire_type_message(m);
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} else {
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u8 *f = grab_fd(NULL, STDIN_FILENO);
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size_t off = 0;
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while (off != tal_count(f)) {
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be16 len;
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if (off + sizeof(len) > tal_count(f)) {
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warnx("Truncated file");
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break;
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}
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memcpy(&len, f + off, sizeof(len));
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off += sizeof(len);
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if (off + be16_to_cpu(len) > tal_count(f)) {
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warnx("Truncated file");
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break;
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}
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m = tal_dup_arr(f, u8, f + off, be16_to_cpu(len), 0);
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if (onion)
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printonion_type_message(m);
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else
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printwire_type_message(m);
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off += be16_to_cpu(len);
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tal_free(m);
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}
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}
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return 0;
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}
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