struct sandbox_state;
/**
+ * os_printf() - print directly to OS console
+ *
+ * @format: format string
+ */
+int os_printf(const char *format, ...);
+
+/**
* Access to the OS read() system call
*
* @fd: File descriptor as returned by os_open()
void os_exit(int exit_code) __attribute__((noreturn));
/**
+ * os_alarm() - access to the OS alarm() system call
+ *
+ * @seconds: number of seconds before the signal is sent
+ * Returns: number of seconds remaining until any previously scheduled alarm was
+ * due to be delivered; 0 if there was no previously scheduled alarm
+ */
+unsigned int os_alarm(unsigned int seconds);
+
+/**
+ * os_set_alarm_handler() - set handler for SIGALRM
+ *
+ * @handler: The handler function. Pass NULL for SIG_DFL.
+ */
+void os_set_alarm_handler(void (*handler)(int));
+
+/**
+ * os_raise_sigalrm() - do raise(SIGALRM)
+ */
+void os_raise_sigalrm(void);
+
+/**
* os_tty_raw() - put tty into raw mode to mimic serial console better
*
* @fd: File descriptor of stdin (normally 0)
* @size: size of file is returned if no error
* Return: 0 on success or -1 if an error ocurred
*/
-int os_get_filesize(const char *fname, loff_t *size);
+int os_get_filesize(const char *fname, long long *size);
/**
* os_putc() - write a character to the controlling OS terminal
void os_puts(const char *str);
/**
+ * os_flush() - flush controlling OS terminal
+ *
+ * This bypasses the U-Boot console support and flushes directly the OS
+ * stdout file descriptor.
+ */
+void os_flush(void);
+
+/**
* os_write_ram_buf() - write the sandbox RAM buffer to a existing file
*
* @fname: filename to write memory to (simple binary format)