1/* 2 * Copyright (c) 2013 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24#ifndef _TZLINK_H_ 25#define _TZLINK_H_ 26 27/*! 28 * @function tzlink 29 * Create the timezone link at TZDEFAULT 30 * 31 * @param tz 32 * New timezone, e.g. "America/Los_Angeles". This path is relative to TZDIR, 33 * and must not contain any relative path components or stray slashes. 34 * The file must exist and must be a valid timezone file with correct 35 * ownership (root:wheel) and permissions (0644). 36 * 37 * @result 38 * If the call succeeds, will return zero. Otherwise, returns an error: 39 * EINVAL: Invalid input, e.g. NULL or a path with relative components. 40 * ENAMETOOLONG: Input too long (generates a path > PATH_MAX) 41 * ENOENT: Specified file doesn't exist or fails owner/perm check. 42 * EPERM: Entitlement check failed. 43 * EIO: Failed to communicate with backing daemon. 44 * ENOTSUP: Always returned on OS X. 45 * And possibly others not documented here. 46 * 47 * @discussion 48 * This call can be used by any sufficiently-entitled client to overwrite 49 * the timezone link at TZDEFAULT (see <tzfile.h>). It communicates with a 50 * root daemon that does the necessary validation and file system work. 51 * Upon success, the "SignificantTimeChangeNotification" notification is 52 * posted. 53 */ 54errno_t tzlink(const char *tz); 55 56#endif /* !_TZLINK_H_ */ 57