utimes(2) utimes(2)
NAME [Toc] [Back]
utimes - set file access and modification times
SYNOPSIS [Toc] [Back]
#include <sys/time.h>
int utimes(const char *path, const struct timeval times[2]);
DESCRIPTION [Toc] [Back]
The utimes() function sets the access and modification times of the
file pointed to by the path argument to the value of the times
argument. The utimes() function allows time specifications accurate to
the microsecond.
For utimes(), the times argument is an array of timeval structures.
The first array member represents the date and time of last access,
and the second member represents the date and time of last
modification. The times in the timeval structure are measured in
seconds and microseconds since the Epoch, although rounding toward the
nearest second may occur.
If the times argument is a null pointer, the access and modification
times of the file are set to the current time. The effective user ID
of the process must be the same as the owner of the file, or must have
write access to the file or appropriate privileges to use this call in
this manner. Upon completion, utimes() will mark the time of the last
file status change, st_ctime, for update.
RETURN VALUE [Toc] [Back]
Upon successful completion, 0 is returned. Otherwise, -1 is returned
and errno is set to indicate the error, and the file times will not be
affected.
ERRORS [Toc] [Back]
The utimes() function will fail if:
[EACCES] Search permission is denied by a
component of the path prefix; or the
times argument is a null pointer and the
effective user ID of the process does
not match the owner of the file and
write access is denied.
[ELOOP] Too many symbolic links were encountered
in resolving path.
[ENAMETOOLONG] The length of the path argument exceeds
{PATH_MAX} or a pathname component is
longer than {NAME_MAX}.
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: August 2003
utimes(2) utimes(2)
[ENOENT] A component of path does not name an
existing file or path is an empty
string.
[ENOTDIR] A component of the path prefix is not a
directory.
[EPERM] The times argument is not a null pointer
and the calling process' effective user
ID has write access to the file but does
not match the owner of the file and the
calling process does not have the
appropriate privileges.
[EROFS] The file system containing the file is
read-only.
The utimes() function may fail if:
[ENAMETOOLONG] Pathname resolution of a symbolic link
produced an intermediate result whose
length exceeds {PATH_MAX}.
SEE ALSO [Toc] [Back]
<sys/time.h>.
CHANGE HISTORY [Toc] [Back]
First released in Issue 4, Version 2.
Hewlett-Packard Company - 2 - HP-UX 11i Version 2: August 2003 [ Back ] |