Copyright (c) 2009, Sun Microsystems, Inc. All Rights Reserved.
Copyright 1989 AT&T
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
See the License for the specific language governing permissions and limitations under the License. When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with
the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
#include <sys/types.h> #include <utime.h> int utime(const char *path, const struct utimbuf *times);
The utime() function sets the access and modification times of the file pointed to by path, and causes the time of the last file status change (st_ctime) to be updated.
If times is NULL, the access and modification times of the file are set to the current time. A process must be the owner of the file or have write permission to use utime() in this manner.
If times is not NULL, times is interpreted as a pointer to a utimbuf structure (defined in <utime.h>) and the access and modification times are set to the values contained in the designated structure. Only the owner of the file or a process that has the {PRIV_FILE_OWNER} privilege asserted in its effective set can use utime() in this manner.
The utimbuf structure contains the following members:
time_t actime; /* access time */ time_t modtime; /* modification time */
The times contained in the members of the utimbuf structure are measured in seconds since 00:00:00 UTC, January 1, 1970.
Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.
The utime() function will fail if:
EACCES
Search permission is denied by a component of the path prefix.
EACCES
The process does not have appropriate privileges and is not the owner of the file, write permission is denied for the file, and times is NULL.
EFAULT
The path argument points to an illegal address.
EINTR
A signal was caught during the execution of the utime() function.
EIO
An I/O error occurred while reading from or writing to the file system.
ELOOP
Too many symbolic links were encountered in translating path.
ENAMETOOLONG
The length of the path argument exceeds PATH_MAX, or the length of a path component exceeds NAME_MAX while _POSIX_NO_TRUNC is in effect.
ENOENT
The named file does not exist or is a null pathname.
ENOLINK
The path argument points to a remote machine and the link to that machine is no longer active.
ENOTDIR
A component of the path prefix is not a directory.
EPERM
The effective user of the calling process is not the owner of the file, {PRIV_FILE_OWNER} is not asserted in the effective set of the calling process, and times is not NULL.
EROFS
The file system containing the file is mounted read-only.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Committed |
| MT-Level | Async-Signal-Safe |
| Standard | See standards(5). |
futimens(2), stat(2), utimes(2), attributes(5), privileges(5), standards(5)