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add utimens and lutimens wrappers using utimensat.

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This commit is contained in:
christos 2012-11-03 19:39:21 +00:00
parent 9211d76436
commit ff84366ca6
4 changed files with 81 additions and 7 deletions
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6
lib/libc/gen/Makefile.inc
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@ -1,4 +1,4 @@
# $NetBSD: Makefile.inc,v 1.184 2012/04/12 22:08:32 christos Exp $
# $NetBSD: Makefile.inc,v 1.185 2012/11/03 19:39:21 christos Exp $
# from: @(#)Makefile.inc 8.6 (Berkeley) 5/4/95
# gen sources
@ -29,8 +29,8 @@ SRCS+= _errno.c alarm.c alphasort.c arc4random.c assert.c basename.c clock.c \
sigset.c sigsetops.c sleep.c \
stringlist.c sysconf.c sysctl.c sysctlbyname.c sysctlgetmibinfo.c \
sysctlnametomib.c syslog.c telldir.c time.c \
times.c toascii.c tolower_.c ttyname.c ttyslot.c \
toupper_.c ualarm.c ulimit.c uname.c unvis.c usleep.c utime.c utmp.c \
times.c toascii.c tolower_.c ttyname.c ttyslot.c toupper_.c ualarm.c \
ulimit.c uname.c unvis.c usleep.c utime.c utimens.c utmp.c \
utmpx.c valloc.c vis.c wait.c wait3.c waitpid.c warn.c warnx.c \
vwarn.c vwarnx.c verr.c verrx.c wordexp.c

53
lib/libc/gen/utimens.c Normal file
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@ -0,0 +1,53 @@
/* $NetBSD: utimens.c,v 1.1 2012/11/03 19:39:21 christos Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: utimens.c,v 1.1 2012/11/03 19:39:21 christos Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#define _INCOMPLETE_XOPEN_C063
#include <fcntl.h>
#include <sys/stat.h>
int
utimens(const char *path, const struct timespec *times)
{
return utimensat(AT_FDCWD, path, times, 0);
}
int
lutimens(const char *path, const struct timespec *times)
{
return utimensat(AT_FDCWD, path, times, AT_SYMLINK_NOFOLLOW);
}

23
lib/libc/sys/utimes.2
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@ -1,4 +1,4 @@
.\" $NetBSD: utimes.2,v 1.30 2011/10/25 09:26:53 wiz Exp $
.\" $NetBSD: utimes.2,v 1.31 2012/11/03 19:39:21 christos Exp $
.\"
.\" Copyright (c) 1990, 1993
.\" The Regents of the University of California. All rights reserved.
@ -36,6 +36,8 @@
.Nm utimes ,
.Nm lutimes ,
.Nm futimes ,
.Nm utimens ,
.Nm lutimens ,
.Nm futimens ,
.Nm utimensat
.Nd set file access and modification times
@ -48,6 +50,10 @@
.Ft int
.Fn lutimes "const char *path" "const struct timeval times[2]"
.Ft int
.Fn utimens "const char *path" "const struct timeval times[2]"
.Ft int
.Fn lutimens "const char *path" "const struct timeval times[2]"
.Ft int
.Fn futimes "int fd" "const struct timeval times[2]"
.Ft int
.Fn futimens "int fd" "const struct timespec times[2]"
@ -100,10 +106,17 @@ while
.Fn utimes
changes the times of the file the link references.
.Pp
.Fn utimens ,
.Fn lutimens ,
and
.Fn futimens
is like
.Fn utimes ,
.Fn lutimes ,
and
.Fn futimes
except that time is specified with nanosecond instead of microseconds.
respectively except that time is specified with nanosecond instead of
microsecond precision.
.Pp
.Fn utimensat
also allows time to be specifed with nanoseconds.
@ -117,7 +130,9 @@ is set to
the symbolic link's dates are changed.
.Pp
The nanosecond fields for
.Fn futimens
.Fn utimens ,
.Fn lutimens ,
.Fn futimens ,
and
.Fn utimensat
can be set to the special value
@ -143,6 +158,8 @@ is set to indicate the error.
.Sh ERRORS
.Fn utimes ,
.Fn lutimes ,
.Fn utimens ,
.Fn lutimens ,
and
.Fn utimensat
will fail if:

6
sys/sys/stat.h
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@ -1,4 +1,4 @@
/* $NetBSD: stat.h,v 1.63 2011/09/04 10:02:33 christos Exp $ */
/* $NetBSD: stat.h,v 1.64 2012/11/03 19:39:21 christos Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
@ -249,6 +249,10 @@ int fstatat(int, const char *, struct stat *, int);
int utimensat(int, const char *, const struct timespec *, int);
#endif
#ifdef _NETBSD_SOURCE
int utimens(const char *, const struct timespec *);
int lutimens(const char *, const struct timespec *);
#endif
int futimens(int, const struct timespec *);
#endif