41 int close(int fd)  in close()
47 ssize_t read(int fd, void *buf, size_t nbyte)  in read()
53 ssize_t write(int fd, const void *buf, size_t nbyte)  in write()
59 off_t lseek(int fd, off_t offset, int whence)  in lseek()
88 int fsync(int fd)  in fsync()
122 int fstat(int fd, struct stat *buf)  in fstat()
127 int fcntl(int fd, int cmd, ...)  in fcntl()
137 int ioctl(int fd, int request, ...)  in ioctl()
149 ssize_t readv(int fd, const struct iovec *iovBuf, int iovcnt)  in readv()
154 ssize_t writev(int fd, const struct iovec *iovBuf, int iovcnt)  in writev()
159 int isatty(int fd)  in isatty()
182 int ftruncate(int fd, off_t length)  in ftruncate()
187 ssize_t pread(int fd, void *buf, size_t nbyte, off_t offset)  in pread()
193 ssize_t pwrite(int fd, const void *buf, size_t nbyte, off_t offset)  in pwrite()