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

extern "C"
{
    int utime(const char* path, const struct utimbuf* buf)
    {
        if (!buf) return utimensat(AT_FDCWD, path, nullptr, 0);

        struct timespec times[2] = {
            { .tv_sec = buf->actime, .tv_nsec = 0 },
            { .tv_sec = buf->modtime, .tv_nsec = 0 },
        };

        return utimensat(AT_FDCWD, path, times, 0);
    }

    int utimes(const char* path, const struct timeval* buf)
    {
        if (!buf) return utimensat(AT_FDCWD, path, nullptr, 0);

        struct timespec times[2] = {
            { .tv_sec = buf[0].tv_sec, .tv_nsec = buf[0].tv_usec * 1000 },
            { .tv_sec = buf[1].tv_sec, .tv_nsec = buf[1].tv_usec * 1000 },
        };

        return utimensat(AT_FDCWD, path, times, 0);
    }

    int futimes(int fd, const struct timeval* buf)
    {
        if (!buf) return utimensat(fd, "", nullptr, AT_EMPTY_PATH);

        struct timespec times[2] = {
            { .tv_sec = buf[0].tv_sec, .tv_nsec = buf[0].tv_usec * 1000 },
            { .tv_sec = buf[1].tv_sec, .tv_nsec = buf[1].tv_usec * 1000 },
        };

        return utimensat(fd, "", times, AT_EMPTY_PATH);
    }

    int lutimes(const char* path, const struct timeval* buf)
    {
        if (!buf) return utimensat(AT_FDCWD, path, nullptr, AT_SYMLINK_NOFOLLOW);

        struct timespec times[2] = {
            { .tv_sec = buf[0].tv_sec, .tv_nsec = buf[0].tv_usec * 1000 },
            { .tv_sec = buf[1].tv_sec, .tv_nsec = buf[1].tv_usec * 1000 },
        };

        return utimensat(AT_FDCWD, path, times, AT_SYMLINK_NOFOLLOW);
    }
}