HP-UX Reference (11i v2 07/12) - 2 System Calls (vol 5)

u
utimes(2) utimes(2)
NAME
utimes() - set file access and modification times
SYNOPSIS
#include <sys/time.h>
int utimes(const char *path, const struct timeval times[2]);
DESCRIPTION
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
0 Successful completion.
−1 Failure. errno is set to indicate the error, and the file times are not affected.
ERRORS
If utimes() fails, it sets errno to one of the following values:
[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 path name component is longer
than NAME_MAX.
[ENAMETOOLONG]
Path name resolution of a symbolic link produced an intermediate result whose length
exceeds PATH_MAX.
[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] All of the following conditions occurred:
The times argument is not a null pointer.
The effective user ID of the calling process has write access to the file but does not match
the owner of the file.
The calling process does not have the appropriate privileges.
[EROFS] The file system containing the file is read-only.
SEE ALSO
<sys/time.h>.
HP-UX 11i Version 2: December 2007 Update − 1 − Hewlett-Packard Company 517