Function logv

lightningd/log.c:653–691

}

void logv(struct logger *log, enum log_level level,
	  const struct node_id *node_id,
	  bool call_notifier,
	  const char *fmt, va_list ap)
{
	int save_errno = errno;
	struct log_hdr l;
	size_t log_len;
	char *logmsg;

	/* This is WARN_UNUSED_RESULT, because everyone should somehow deal
	 * with OOM, even though nobody does. */
	if (vasprintf(&logmsg, fmt, ap) == -1)
		abort();

	log_len = strlen(logmsg);

	/* Sanitize any non-printable characters, and replace with '?' */
	for (size_t i=0; i<log_len; i++)
		if (logmsg[i] < ' ' || logmsg[i] >= 0x7f)
			logmsg[i] = '?';

	init_log_hdr(log, &l, level, node_id, log_len, 0);
	maybe_print(log, &l, logmsg, NULL);
	maybe_notify_log(log, &l, logmsg);

	logmsg = cap_header(tmpctx, &l, logmsg);
	add_entry(log->log_book, &l, logmsg, NULL);

	if (call_notifier)
		notify_warning(log->log_book->ld,
			       l.level,
			       l.time,
			       l.prefix->prefix,
			       logmsg);
	free(logmsg);

	errno = save_errno;
}

void log_io(struct logger *log, enum log_level dir,
	    const struct node_id *node_id,