/*-
 * Copyright (c) 2004, 2005, 2007, 2011, 2012
 *	Thorsten Glaser <tg@mirbsd.org>
 *
 * Provided that these terms and disclaimer and all copyright notices
 * are retained or reproduced in an accompanying document, permission
 * is granted to deal in this work without restriction, including un-
 * limited rights to use, publicly perform, distribute, sell, modify,
 * merge, give away, or sublicence.
 *
 * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
 * the utmost extent permitted by applicable law, neither express nor
 * implied; without malicious intent or gross negligence. In no event
 * may a licensor, author or contributor be held liable for indirect,
 * direct, other damage, loss, or other issues arising in any way out
 * of dealing in the work, even if advised of the possibility of such
 * damage or existence of a defect, except proven that it results out
 * of said person's immediate fault when using the work as intended.
 *-
 * Generate a dump of what leap seconds userspace currently knows of,
 * for use within an environment where tzdata is not available.
 */

#include <err.h>
#include <stdio.h>
#include <time.h>

__RCSID("$MirOS: src/sys/conf/make_leaps.c,v 1.3 2012/09/07 20:06:40 tg Exp $");

static const char preamble[] =
"/* AUTOMATICALLY GENERATED - DO NOT EDIT! */\n"
"\n"
"#include <sys/time.h>\n"
"\n"
"__RCSID(\"From: $MirOS: src/sys/conf/make_leaps.c,v 1.3 2012/09/07 20:06:40 tg Exp $\");\n"
"\n"
"static time_t _leaps_tt[] = {\n";

static const char epilogue[] =
"	/* spare for config(8) */\n"
"	0,\n"
"	0,\n"
"	0,\n"
"	0,\n"
"	0,\n"
"	0,\n"
"	/* last one must be 0 */\n"
"	0,\n"
"	/* past last one must be -1 */\n"
"	(time_t)-1\n"
"};\n"
"\n"
"const time_t *\n"
"mirtime_getleaps(void)\n"
"{\n"
"	return (_leaps_tt);\n"
"}\n";

int
main(void)
{
	const time_t *lp;

	lp = mirtime_getleaps();

	fputs(preamble, stdout);
	while (*lp)
		if (sizeof(time_t) == 4)
			printf("\t0x%08XL,\n", (uint32_t)*lp++);
		else
			printf("\t0x%016llXLL,\n", (uint64_t)*lp++);
	fputs(epilogue, stdout);

	return (0);
}