#ifndef KSTD_H #define KSTD_H #include int write(const void *s, size_t length); void *sbrk(ssize_t increment); int getkey(void); unsigned long gettick(void); int open(const char *pathname, int flags); ssize_t read(int fd, void *buf, size_t count); off_t lseek(int filedes, off_t offset, int whence); int close(int fd); int setvideo(int mode); void swap_frontbuffer(const void *buffer); int playsound(struct melody *melody, int repeat); int getmouse(int *x, int *y, int *buttons); int getkeymode(int mode); #endif