1 /* Copyright 2013 The Chromium Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. */ 4 5 #ifndef LIBRARIES_NACL_IO_IOCTL_H_ 6 #define LIBRARIES_NACL_IO_IOCTL_H_ 7 8 #include <sys/types.h> 9 10 /* 11 * ioctl to feed input to a tty node. Accepts a pointer to the following 12 * struct (tioc_nacl_input_string), which contains a pointer to an array 13 * of characters. 14 */ 15 #define TIOCNACLINPUT 0xadcd02 16 17 /* 18 * ioctl to register an output handler with the tty node. Will fail 19 * with EALREADY if a handler is already registered. Expects an 20 * argument of type tioc_nacl_output. The handler will be called during 21 * calls to write() on the thread that calls write(), or, for echoed input 22 * during the TIOCNACLINPUT ioctl() on the thread calling ioctl(). The 23 * handler should return the number of bytes written/handled, or -errno 24 * if an error occured. 25 */ 26 #define TIOCNACLOUTPUT 0xadcd03 27 28 struct tioc_nacl_input_string { 29 size_t length; 30 const char* buffer; 31 }; 32 33 34 typedef ssize_t (*tioc_nacl_output_handler_t)(const char* buf, 35 size_t count, 36 void* user_data); 37 38 struct tioc_nacl_output { 39 tioc_nacl_output_handler_t handler; 40 void* user_data; 41 }; 42 43 44 #endif /* LIBRARIES_NACL_IO_NACL_IO_H_ */ 45
