Import NetBSD touch command
Replaces the 'touch' functionality provided by commands/touch.
This commit is contained in:
Zachary Storer
Lionel Sambuc
parent
5552d86152
commit
71d1d39e61
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@ -26,7 +26,7 @@ SUBDIR= add_route arp ash at backup btrace \
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slip spell sprofalyze sprofdiff srccrc \
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svclog svrctl swifi synctree sysenv \
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syslogd tail tcpd tcpdp tcpstat telnet \
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telnetd term termcap tget time touch \
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telnetd term termcap tget time \
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truncate udpstat umount \
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unstack update uud uue version vol \
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whereis which writeisofs fetch \
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@ -1,6 +0,0 @@
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# $NetBSD: Makefile,v 1.3 1994/12/07 09:19:47 jtc Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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PROG= touch
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.include <bsd.prog.mk>
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@ -25,7 +25,7 @@ SUBDIR= asa \
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\
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sdiff sed seq shlock \
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shuffle sort split stat su \
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tee tic tput \
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tee tic touch tput \
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tr true tsort tty ul uname unexpand unifdef \
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uniq units unvis unzip users \
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uuidgen vis \
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@ -0,0 +1,8 @@
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# $NetBSD: Makefile,v 1.4 2012/07/25 01:23:46 christos Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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PROG= touch
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LDADD+= -lutil
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DPADD+= ${LIBUTIL}
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.include <bsd.prog.mk>
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@ -1,5 +1,4 @@
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.\" $OpenBSD: touch.1,v 1.14 2007/08/06 19:16:06 sobrado Exp $
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.\" $NetBSD: touch.1,v 1.8 1995/08/31 22:10:05 jtc Exp $
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.\" $NetBSD: touch.1,v 1.25 2012/10/24 02:46:25 pgoyette Exp $
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.\"
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.\" Copyright (c) 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -33,27 +32,30 @@
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.\"
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.\" @(#)touch.1 8.3 (Berkeley) 4/28/95
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.\"
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.Dd $Mdocdate: August 6 2007 $
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.Dd October 22, 2012
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.Dt TOUCH 1
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.Os
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.Sh NAME
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.Nm touch
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.Nd change file access and modification times
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.Sh SYNOPSIS
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.Nm touch
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.Op Fl acm
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.Nm
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.Op Fl acfhm
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.Op Fl d Ar human-datetime
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.Op Fl Fl date Ar human-datetime
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.Op Fl r Ar file
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.Op Fl t Ar [[CC]YY]MMDDhhmm[.SS]
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.Ar
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.Op Fl Fl reference Ar file
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.Op Fl t Ar datetime
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.Ar file ...
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.Sh DESCRIPTION
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The
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.Nm
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utility sets the modification and access times of files to the
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utility changes the access and modification times of files to the
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current time of day.
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If the file doesn't exist, it is created with default permissions.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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The following options are available:
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.Bl -tag -width "-d human-datetime"
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.It Fl a
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Change the access time of the file.
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The modification time of the file is not changed unless the
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@ -65,17 +67,35 @@ The
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.Nm
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utility does not treat this as an error.
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No error messages are displayed and the exit value is not affected.
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.It Fl d Ar human-datetime
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.It Fl Fl date Ar human-datetime
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Parse
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.Ar human-datetime
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using the human datetime parser
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.Xr parsedate 3 .
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.It Fl f
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This flag has no effect; it is accepted for compatibility reasons.
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.It Fl h
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If
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.Ar file
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is a symbolic link, access and/or modification time of the link is changed.
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This option implies
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.Fl c .
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.It Fl m
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Change the modification time of the file.
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The access time of the file is not changed unless the
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.Fl a
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flag is also specified.
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.It Fl r Ar file
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Use the access and modification times from the specified file
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.It Fl Fl reference Ar file
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Use the access and modifications times from
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.Ar file
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instead of the current time of day.
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.It Fl t Ar [[CC]YY]MMDDhhmm[.SS]
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.It Fl t Ar datetime
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Change the access and modification times to the specified time.
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The argument should be in the form
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The argument
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.Ar datetime
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should be in the form
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.Dq [[CC]YY]MMDDhhmm[.SS]
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where each pair of letters represents the following:
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.Pp
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@ -120,22 +140,21 @@ letter pair is not specified, the value defaults to 0.
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.El
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.Pp
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The
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.Nm
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utility exits 0 on success or >0 if an error occurred.
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.Sh SEE ALSO
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.Xr utimes 2
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.Sh STANDARDS
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The
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.Nm
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utility is compliant with the
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.St -p1003.1-2004
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specification.
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.Pp
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.Fl d ,
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.Fl r ,
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and
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.Fl t
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options are mutually exclusive.
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If more than one of these options is present, the last one is used.
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.Sh EXIT STATUS
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.Ex -std
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.Sh COMPATIBILITY
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The obsolescent form of
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.Nm touch ,
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.Nm ,
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where a time format is specified as the first argument, is supported.
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When no
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.Fl r
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.Fl d ,
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.Fl r ,
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or
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.Fl t
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option is specified, there are at least two arguments, and the first
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@ -154,10 +173,20 @@ letter pairs are treated as their counterparts specified to the
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option.
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If the
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.Dq YY
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letter pair is in the range 69 to 99, the year is set from 1969 to 1999;
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letter pair is in the range 69 to 99, the year is set to 1969 to 1999,
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otherwise, the year is set in the 21st century.
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.Sh SEE ALSO
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.Xr utimes 2
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.Sh STANDARDS
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The
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.Nm
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utility is expected to be a superset of the
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.St -p1003.2
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specification.
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.Sh HISTORY
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A
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.Nm
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utility appeared in
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.At v7 .
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.Sh BUGS
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A symbolic link can't be a reference file of access and/or modification time.
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@ -1,5 +1,4 @@
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/* $OpenBSD: touch.c,v 1.17 2007/08/06 19:16:06 sobrado Exp $ */
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/* $NetBSD: touch.c,v 1.11 1995/08/31 22:10:06 jtc Exp $ */
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/* $NetBSD: touch.c,v 1.32 2012/10/22 21:51:58 christos Exp $ */
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/*
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* Copyright (c) 1993
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@ -30,11 +29,23 @@
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)touch.c 8.2 (Berkeley) 4/28/95";
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#endif
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__RCSID("$NetBSD: touch.c,v 1.32 2012/10/22 21:51:58 christos Exp $");
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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@ -43,42 +54,60 @@
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#include <string.h>
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#include <locale.h>
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#include <time.h>
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#include <utime.h>
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#include <tzfile.h>
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#include <unistd.h>
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#include <util.h>
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#include <getopt.h>
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void stime_arg1(char *, struct timeval *);
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void stime_arg2(char *, int, struct timeval *);
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void stime_file(char *, struct timeval *);
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__dead void usage(void);
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static void stime_arg0(char *, struct timeval *);
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static void stime_arg1(char *, struct timeval *);
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static void stime_arg2(char *, int, struct timeval *);
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static void stime_file(char *, struct timeval *);
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__dead static void usage(void);
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char * __progname;
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struct option touch_longopts[] = {
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{ "date", required_argument, 0,
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'd' },
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{ "reference", required_argument, 0,
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'r' },
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{ NULL, 0, 0,
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0 },
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};
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int
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main(int argc, char *argv[])
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{
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struct stat sb;
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struct timeval tv[2];
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int aflag, cflag, mflag, ch, fd, len, rval, timeset;
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char *p;
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struct stat sb;
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struct timeval tv[2];
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int aflag, cflag, hflag, mflag, ch, fd, len, rval, timeset;
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char *p;
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int (*change_file_times)(const char *, const struct timeval *);
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int (*get_file_status)(const char *, struct stat *);
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(void)setlocale(LC_ALL, "");
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__progname = argv[0];
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setlocale(LC_ALL, "");
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aflag = cflag = mflag = timeset = 0;
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aflag = cflag = hflag = mflag = timeset = 0;
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if (gettimeofday(&tv[0], NULL))
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err(1, "gettimeofday");
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while ((ch = getopt(argc, argv, "acfmr:t:")) != -1)
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switch (ch) {
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while ((ch = getopt_long(argc, argv, "acd:fhmr:t:", touch_longopts,
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NULL)) != -1)
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switch(ch) {
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case 'a':
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aflag = 1;
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break;
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case 'c':
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cflag = 1;
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break;
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case 'd':
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timeset = 1;
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stime_arg0(optarg, tv);
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break;
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case 'f':
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break;
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case 'h':
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hflag = 1;
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break;
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case 'm':
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mflag = 1;
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break;
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@ -90,6 +119,7 @@ main(int argc, char *argv[])
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timeset = 1;
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stime_arg1(optarg, tv);
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break;
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case '?':
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default:
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usage();
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}
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@ -100,6 +130,15 @@ main(int argc, char *argv[])
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if (aflag == 0 && mflag == 0)
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aflag = mflag = 1;
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if (hflag) {
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cflag = 1; /* Don't create new file */
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change_file_times = lutimes;
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get_file_status = lstat;
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} else {
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change_file_times = utimes;
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get_file_status = stat;
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}
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/*
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* If no -r or -t flag, at least two operands, the first of which
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* is an 8 or 10 digit number, use the obsolete time specification.
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@ -120,15 +159,15 @@ main(int argc, char *argv[])
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if (*argv == NULL)
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usage();
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for (rval = 0; *argv; ++argv) {
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for (rval = EXIT_SUCCESS; *argv; ++argv) {
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/* See if the file exists. */
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if (stat(*argv, &sb)) {
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if ((*get_file_status)(*argv, &sb)) {
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if (!cflag) {
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/* Create the file. */
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fd = open(*argv,
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O_WRONLY | O_CREAT, DEFFILEMODE);
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if (fd == -1 || fstat(fd, &sb) || close(fd)) {
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rval = 1;
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rval = EXIT_FAILURE;
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warn("%s", *argv);
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continue;
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}
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@ -139,19 +178,18 @@ main(int argc, char *argv[])
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} else
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continue;
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}
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if (!aflag)
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TIMESPEC_TO_TIMEVAL(&tv[0], &sb.st_atimespec);
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if (!mflag)
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TIMESPEC_TO_TIMEVAL(&tv[1], &sb.st_mtimespec);
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/* Try utimes(2). */
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if (!utimes(*argv, tv))
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if (!(*change_file_times)(*argv, tv))
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continue;
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/* If the user specified a time, nothing else we can do. */
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if (timeset) {
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rval = 1;
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rval = EXIT_FAILURE;
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warn("%s", *argv);
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}
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@ -161,10 +199,10 @@ main(int argc, char *argv[])
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* The permission checks are different, too, in that the
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* ability to write the file is sufficient. Take a shot.
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*/
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if (!utimes(*argv, NULL))
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if (!(*change_file_times)(*argv, NULL))
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continue;
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rval = 1;
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rval = EXIT_FAILURE;
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warn("%s", *argv);
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}
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exit(rval);
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@ -172,135 +210,128 @@ main(int argc, char *argv[])
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#define ATOI2(s) ((s) += 2, ((s)[-2] - '0') * 10 + ((s)[-1] - '0'))
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void
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static void
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stime_arg0(char *arg, struct timeval *tvp)
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{
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tvp[1].tv_sec = tvp[0].tv_sec = parsedate(arg, NULL, NULL);
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if (tvp[0].tv_sec == -1)
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errx(EXIT_FAILURE, "Could not parse `%s'", arg);
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tvp[0].tv_usec = tvp[1].tv_usec = 0;
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}
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static void
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stime_arg1(char *arg, struct timeval *tvp)
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{
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struct tm *lt;
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time_t tmptime;
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int yearset;
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char *dot, *p;
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struct tm *t;
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time_t tmptime;
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int yearset;
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char *p;
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/* Start with the current time. */
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tmptime = tvp[0].tv_sec;
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if ((lt = localtime(&tmptime)) == NULL)
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err(1, "localtime");
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if ((t = localtime(&tmptime)) == NULL)
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err(EXIT_FAILURE, "localtime");
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/* [[CC]YY]MMDDhhmm[.SS] */
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for (p = arg, dot = NULL; *p != '\0'; p++) {
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if (*p == '.' && dot == NULL)
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dot = p;
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else if (!isdigit((unsigned char)*p))
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goto terr;
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}
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if (dot == NULL)
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lt->tm_sec = 0; /* Seconds defaults to 0. */
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if ((p = strchr(arg, '.')) == NULL)
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t->tm_sec = 0; /* Seconds defaults to 0. */
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else {
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*dot++ = '\0';
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if (strlen(dot) != 2)
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goto terr;
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lt->tm_sec = ATOI2(dot);
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if (lt->tm_sec > 61) /* Could be leap second. */
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if (strlen(p + 1) != 2)
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goto terr;
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*p++ = '\0';
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t->tm_sec = ATOI2(p);
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}
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yearset = 0;
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switch (strlen(arg)) {
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case 12: /* CCYYMMDDhhmm */
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lt->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE;
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t->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE;
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yearset = 1;
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/* FALLTHROUGH */
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case 10: /* YYMMDDhhmm */
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if (yearset) {
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yearset = ATOI2(arg);
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lt->tm_year += yearset;
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t->tm_year += ATOI2(arg);
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} else {
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yearset = ATOI2(arg);
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/* Preserve current century. */
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lt->tm_year = ((lt->tm_year / 100) * 100) + yearset;
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if (yearset < 69)
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t->tm_year = yearset + 2000 - TM_YEAR_BASE;
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else
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t->tm_year = yearset + 1900 - TM_YEAR_BASE;
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}
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/* FALLTHROUGH */
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case 8: /* MMDDhhmm */
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lt->tm_mon = ATOI2(arg);
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if (lt->tm_mon > 12 || lt->tm_mon == 0)
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goto terr;
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--lt->tm_mon; /* Convert from 01-12 to 00-11 */
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lt->tm_mday = ATOI2(arg);
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if (lt->tm_mday > 31 || lt->tm_mday == 0)
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goto terr;
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lt->tm_hour = ATOI2(arg);
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if (lt->tm_hour > 23)
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goto terr;
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lt->tm_min = ATOI2(arg);
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if (lt->tm_min > 59)
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goto terr;
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t->tm_mon = ATOI2(arg);
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--t->tm_mon; /* Convert from 01-12 to 00-11 */
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/* FALLTHROUGH */
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case 6:
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t->tm_mday = ATOI2(arg);
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/* FALLTHROUGH */
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case 4:
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t->tm_hour = ATOI2(arg);
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/* FALLTHROUGH */
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case 2:
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t->tm_min = ATOI2(arg);
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break;
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default:
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goto terr;
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}
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|
||||
lt->tm_isdst = -1; /* Figure out DST. */
|
||||
tvp[0].tv_sec = tvp[1].tv_sec = mktime(lt);
|
||||
t->tm_isdst = -1; /* Figure out DST. */
|
||||
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
|
||||
if (tvp[0].tv_sec == -1)
|
||||
terr: errx(1,
|
||||
terr: errx(EXIT_FAILURE,
|
||||
"out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
|
||||
|
||||
tvp[0].tv_usec = tvp[1].tv_usec = 0;
|
||||
}
|
||||
|
||||
void
|
||||
static void
|
||||
stime_arg2(char *arg, int year, struct timeval *tvp)
|
||||
{
|
||||
struct tm *lt;
|
||||
time_t tmptime;
|
||||
struct tm *t;
|
||||
time_t tmptime;
|
||||
/* Start with the current time. */
|
||||
tmptime = tvp[0].tv_sec;
|
||||
if ((lt = localtime(&tmptime)) == NULL)
|
||||
err(1, "localtime");
|
||||
if ((t = localtime(&tmptime)) == NULL)
|
||||
err(EXIT_FAILURE, "localtime");
|
||||
|
||||
lt->tm_mon = ATOI2(arg); /* MMDDhhmm[YY] */
|
||||
if (lt->tm_mon > 12 || lt->tm_mon == 0)
|
||||
goto terr;
|
||||
--lt->tm_mon; /* Convert from 01-12 to 00-11 */
|
||||
lt->tm_mday = ATOI2(arg);
|
||||
if (lt->tm_mday > 31 || lt->tm_mday == 0)
|
||||
goto terr;
|
||||
lt->tm_hour = ATOI2(arg);
|
||||
if (lt->tm_hour > 23)
|
||||
goto terr;
|
||||
lt->tm_min = ATOI2(arg);
|
||||
if (lt->tm_min > 59)
|
||||
goto terr;
|
||||
t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */
|
||||
--t->tm_mon; /* Convert from 01-12 to 00-11 */
|
||||
t->tm_mday = ATOI2(arg);
|
||||
t->tm_hour = ATOI2(arg);
|
||||
t->tm_min = ATOI2(arg);
|
||||
if (year) {
|
||||
year = ATOI2(arg); /* Preserve current century. */
|
||||
lt->tm_year = ((lt->tm_year / 100) * 100) + year;
|
||||
year = ATOI2(arg);
|
||||
if (year < 69)
|
||||
t->tm_year = year + 2000 - TM_YEAR_BASE;
|
||||
else
|
||||
t->tm_year = year + 1900 - TM_YEAR_BASE;
|
||||
}
|
||||
lt->tm_sec = 0;
|
||||
t->tm_sec = 0;
|
||||
|
||||
lt->tm_isdst = -1; /* Figure out DST. */
|
||||
tvp[0].tv_sec = tvp[1].tv_sec = mktime(lt);
|
||||
t->tm_isdst = -1; /* Figure out DST. */
|
||||
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
|
||||
if (tvp[0].tv_sec == -1)
|
||||
terr: errx(1,
|
||||
"out of range or illegal time specification: MMDDhhmm[YY]");
|
||||
errx(EXIT_FAILURE,
|
||||
"out of range or illegal time specification: MMDDhhmm[yy]");
|
||||
|
||||
tvp[0].tv_usec = tvp[1].tv_usec = 0;
|
||||
}
|
||||
|
||||
void
|
||||
static void
|
||||
stime_file(char *fname, struct timeval *tvp)
|
||||
{
|
||||
struct stat sb;
|
||||
struct stat sb;
|
||||
|
||||
if (stat(fname, &sb))
|
||||
err(1, "%s", fname);
|
||||
TIMESPEC_TO_TIMEVAL(tvp, &sb.st_atimespec);
|
||||
TIMESPEC_TO_TIMEVAL(tvp + 1, &sb.st_mtimespec);
|
||||
TIMESPEC_TO_TIMEVAL(&tvp[0], &sb.st_atimespec);
|
||||
TIMESPEC_TO_TIMEVAL(&tvp[1], &sb.st_mtimespec);
|
||||
}
|
||||
|
||||
__dead void
|
||||
static void
|
||||
usage(void)
|
||||
{
|
||||
extern char *__progname;
|
||||
|
||||
(void)fprintf(stderr,
|
||||
"usage: %s [-acm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...\n",
|
||||
__progname);
|
||||
exit(1);
|
||||
"Usage: %s [-acfhm] [-d|--date datetime] [-r|--reference file] [-t time] file ...\n",
|
||||
getprogname());
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
Loading…
Reference in New Issue