#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <utime.h>
#include <stdio.h>

#define F_PATH "utime-test.c"

int main()
{
	struct stat sb;
	struct utimbuf ub;
	int fd;

	if (stat(F_PATH, &sb) == -1) {
		perror(NULL);
		return -1;
	}
	ub.modtime = sb.st_mtime;
	ub.actime = time(NULL);
	if (utime(F_PATH, &ub) == -1) {
		perror(NULL);
		return -2;
	}
	if ((fd = open(F_PATH, O_RDONLY)) == -1) {
		perror(NULL);
		return -3;
	}
	close(fd);
	if (stat(F_PATH, &sb) == -1) {
		perror(NULL);
		return -1;
	}
	ub.modtime = sb.st_mtime;
	ub.actime = time(NULL);
	if (utime(F_PATH, &ub) == -1) {
		perror(NULL);
		return -2;
	}

	return 0;
}