#include <sys/stat.h>

#include <errno.h>

#include <string.h>

#include <stdio.h>

#include <time.h>

#include <stdint.h>

#include <unistd.h>

#include <fcntl.h>

#include "test.h"

#define TEST(c, ...) ((c) ? 1 : (t_error(#c" failed: " __VA_ARGS__),0))

#define TESTVAL(v,op,x) TEST(v op x, "%jd\n", (intmax_t)(v))

int main(void)

{

	struct stat st;

	FILE *f;

	int fd;

	time_t t;

	TEST(utimensat(AT_FDCWD, "/dev/null/invalid", ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_OMIT}}), 0)==0 || errno==ENOTDIR,

		"%s\n", strerror(errno));

	TEST(futimens(-1, ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_OMIT}}))==0 || errno==EBADF,

		"%s\n", strerror(errno));

	if (!TEST(f = tmpfile())) return t_status;

	fd = fileno(f);

	TEST(futimens(fd, (struct timespec[2]){0}) == 0, "\n");

	TEST(fstat(fd, &st) == 0, "\n");

	TESTVAL(st.st_atim.tv_sec,==,0);

	TESTVAL(st.st_atim.tv_nsec,==,0);

	TESTVAL(st.st_mtim.tv_sec,==,0);

	TESTVAL(st.st_mtim.tv_nsec,==,0);

	TEST(futimens(fd, ((struct timespec[2]){{.tv_sec=1,.tv_nsec=UTIME_OMIT},{.tv_sec=1,.tv_nsec=UTIME_OMIT}})) == 0, "\n");

	TEST(fstat(fd, &st) == 0, "\n");

	TESTVAL(st.st_atim.tv_sec,==,0);

	TESTVAL(st.st_atim.tv_nsec,==,0);

	TESTVAL(st.st_mtim.tv_sec,==,0);

	TESTVAL(st.st_mtim.tv_nsec,==,0);

	t = time(0);

	TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_NOW},{.tv_nsec=UTIME_OMIT}})) == 0, "\n");

	TEST(fstat(fd, &st) == 0, "\n");

	TESTVAL(st.st_atim.tv_sec,>=,t);

	TESTVAL(st.st_mtim.tv_sec,==,0);

	TESTVAL(st.st_mtim.tv_nsec,==,0);

	TEST(futimens(fd, (struct timespec[2]){0}) == 0, "\n");

	TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_OMIT},{.tv_nsec=UTIME_NOW}})) == 0, "\n");

	TEST(fstat(fd, &st) == 0, "\n");

	TESTVAL(st.st_atim.tv_sec,==,0);

	TESTVAL(st.st_mtim.tv_sec,>=,t);

	TEST(futimens(fd, ((struct timespec[2]){{.tv_nsec=UTIME_NOW},{.tv_nsec=UTIME_OMIT}})) == 0, "\n");

	TEST(fstat(fd, &st) == 0, "\n");

	TESTVAL(st.st_atim.tv_sec,>=,t);

	TESTVAL(st.st_mtim.tv_sec,>=,t);

	if (TEST((time_t)(1LL<<32) == (1LL<<32), "implementation has Y2038 EOL\n")) {

		if (TEST(futimens(fd, ((struct timespec[2]){{.tv_sec=1LL<<32},{.tv_sec=1LL<<32}})) == 0, "%s\n", strerror(errno))) {

			TEST(fstat(fd, &st) == 0, "\n");

			TESTVAL(st.st_atim.tv_sec, ==, 1LL<<32);

			TESTVAL(st.st_mtim.tv_sec, ==, 1LL<<32);

		}

	}

	fclose(f);

	return t_status;

}