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OpenDarwin 7.2.1 - man page for utimes (opendarwin section 2)

UTIMES(2)			     BSD System Calls Manual				UTIMES(2)

NAME
     utimes, futimes -- set file access and modification times

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/time.h>

     int
     utimes(const char *path, const struct timeval *times);

     int
     futimes(int fd, const struct timeval *times);

DESCRIPTION
     The access and modification times of the file named by path or referenced by fd are changed
     as specified by the argument times.

     If times is NULL, the access and modification times are set to the current time.  The caller
     must be the owner of the file, have permission to write the file, or be the super-user.

     If times is non-NULL, it is assumed to point to an array of two timeval structures.  The
     access time is set to the value of the first element, and the modification time is set to
     the value of the second element.  The caller must be the owner of the file or be the super-
     user.

     In either case, the inode-change-time of the file is set to the current time.

RETURN VALUES
     Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and
     the global variable errno is set to indicate the error.

ERRORS
     utimes() will fail if:

     [EACCES]		Search permission is denied for a component of the path prefix; or the
			times argument is NULL and the effective user ID of the process does not
			match the owner of the file, and is not the super-user, and write access
			is denied.

     [EFAULT]		path or times points outside the process's allocated address space.

     [EIO]		An I/O error occurred while reading or writing the affected inode.

     [ELOOP]		Too many symbolic links were encountered in translating the pathname.

     [ENAMETOOLONG]	A component of a pathname exceeded NAME_MAX characters, or an entire path
			name exceeded PATH_MAX characters.

     [ENOENT]		The named file does not exist.

     [ENOTDIR]		A component of the path prefix is not a directory.

     [EPERM]		The times argument is not NULL and the calling process's effective user
			ID does not match the owner of the file and is not the super-user.

     [EROFS]		The file system containing the file is mounted read-only.

     futimes() will fail if:

     [EBADF]		fd does not refer to a valid descriptor.

     All of the functions will fail if:

     [EACCES]		The times argument is NULL and the effective user ID of the process does
			not match the owner of the file, and is not the super-user, and write
			access is denied.

     [EFAULT]		times points outside the process's allocated address space.

     [EIO]		An I/O error occurred while reading or writing the affected inode.

     [EPERM]		The times argument is not NULL and the calling process's effective user
			ID does not match the owner of the file and is not the super-user.

     [EROFS]		The file system containing the file is mounted read-only.

SEE ALSO
     stat(2), utime(3)

HISTORY
     The utimes() function call appeared in 4.2BSD.  The futimes() function call first appeared
     in FreeBSD 3.0.

BSD					   June 4, 1993 				      BSD


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