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

extern "C"
{
    int open(const char* path, int flags, ...)
    {
        va_list ap;
        va_start(ap, flags);

        mode_t mode = (mode_t)va_arg(ap, int);

        long rc = syscall(SYS_open, path, flags, mode);

        va_end(ap);
        __errno_return(rc, int);
    }
}