NAME
utime, utimes - change access and/or modification times of
an inode
SYNOPSIS
#include <sys/types.h>
#include <utime.h>
int utime(const char *filename, struct utimbuf *buf));
#include <sys/time.h>
int utimes(char *filename, struct timeval *tvp));
DESCRIPTION
utime changes the access and modification times of the inode
specified by filename to the actime and modtime fields of
buf respectively. If buf is NULL, then the access and
modification times of the file are set to the current time.
The utimbuf structure is:
struct utimbuf {
time_t actime; /* access time */
time_t modtime; /* modification time */
};
In the Linux DLL 4.4.1 libraries, utimes is just a wrapper
for utime: tvp[0].tv_sec is actime, and tvp[1].tv_sec is
modtime. The timeval structure is:
struct timeval {
long tv_sec; /* seconds */
long tv_usec; /* microseconds */
};
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
ERRORS
Other errors may occur.
EACCES Permission to write the file is denied.
ENOENT filename does not exist.
CONFORMING TO
utime: SVr4, SVID, POSIX. SVr4 documents additional error
conditions EFAULT, EINTR, ELOOP, EMULTIHOP, ENAMETOOLONG,
ENOLINK, ENOTDIR, ENOLINK, ENOTDIR, EPERM, EROFS.
utimes: BSD 4.3
SEE ALSO
stat(2)