UTIME(3) | Library Functions Manual | UTIME(3) |
utime
—
#include <utime.h>
int
utime
(const
char *file, const struct
utimbuf *timep);
The utime
() function sets the access and
modification times of the named file.
If timep is NULL
,
the access and modification times are set to the current time. The calling
process must be the owner of the file or have permission to write the
file.
If timep is
non-NULL
, time is assumed to
be a pointer to a utimbuf structure, as defined in
<utime.h>
:
struct utimbuf { time_t actime; /* Access time */ time_t modtime; /* Modification time */ };
The access time is set to the value of the actime member, and the modification time is set to the value of the modtime member. The times are measured in seconds since 0 hours, 0 minutes, 0 seconds, January 1, 1970 Coordinated Universal Time (UTC). The calling process 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.
utime
() will fail if:
EACCES
]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
]EINVAL
]EIO
]ELOOP
]ENAMETOOLONG
]NAME_MAX
}
characters, or an entire path name exceeded
{PATH_MAX
} characters.ENOENT
]ENOTDIR
]EPERM
]NULL
and the calling process's effective user ID
does not match the owner of the file and is not the super-user.EROFS
]utime
() function conforms to IEEE
Std 1003.1-1990 (“POSIX.1”). It was however marked as
legacy in the IEEE Std 1003.1-2008
(“POSIX.1”) revision of the standard.
utime
() function appeared in
Version 7 AT&T UNIX.
April 29, 2010 | NetBSD 9.0 |