#include <bits/errno-return.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

extern "C"
{
    int mkdir(const char* path, mode_t mode)
    {
        long rc = syscall(SYS_mkdir, path, mode);
        __errno_return(rc, int);
    }

    int chmod(const char* path, mode_t mode)
    {
        long rc = syscall(SYS_fchmodat, AT_FDCWD, path, mode, 0);
        __errno_return(rc, int);
    }

    int fchmod(int fd, mode_t mode)
    {
        long rc = syscall(SYS_fchmodat, fd, "", mode, AT_EMPTY_PATH);
        __errno_return(rc, int);
    }

    int stat(const char* path, struct stat* st)
    {
        long rc = syscall(SYS_fstatat, AT_FDCWD, path, st, 0);
        __errno_return(rc, int);
    }

    int lstat(const char* path, struct stat* st)
    {
        long rc = syscall(SYS_fstatat, AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW);
        __errno_return(rc, int);
    }

    int fstat(int fd, struct stat* st)
    {
        long rc = syscall(SYS_fstatat, fd, "", st, AT_EMPTY_PATH);
        __errno_return(rc, int);
    }

    int fstatat(int dirfd, const char* path, struct stat* st, int flags)
    {
        long rc = syscall(SYS_fstatat, dirfd, path, st, flags);
        __errno_return(rc, int);
    }

    mode_t umask(mode_t mask)
    {
        return (mode_t)syscall(SYS_umask, mask);
    }

    int utimensat(int dirfd, const char* path, const struct timespec* times, int flags)
    {
        long rc = syscall(SYS_utimensat, dirfd, path, times, flags);
        __errno_return(rc, int);
    }

    int futimens(int fd, const struct timespec* times, int flags)
    {
        return utimensat(fd, "", times, flags | AT_EMPTY_PATH);
    }
}