1 /****************************************************************************** 2 * Copyright (c) 2004, 2008 IBM Corporation 3 * All rights reserved. 4 * This program and the accompanying materials 5 * are made available under the terms of the BSD License 6 * which accompanies this distribution, and is available at 7 * http://www.opensource.org/licenses/bsd-license.php 8 * 9 * Contributors: 10 * IBM Corporation - initial implementation 11 *****************************************************************************/ 12 13 #ifndef _UNISTD_H 14 #define _UNISTD_H 15 16 #include <stddef.h> 17 18 typedef long ssize_t; 19 20 extern int open(const char *name, int flags); 21 extern int close(int fd); 22 extern ssize_t read(int fd, void *buf, size_t count); 23 extern ssize_t write(int fd, const void *buf, size_t count); 24 extern ssize_t lseek(int fd, long offset, int whence); 25 26 #endif 27