From: Zachary Storer Date: Sat, 15 Mar 2014 17:55:55 +0000 (-0600) Subject: Import NetBSD touch command X-Git-Tag: v3.3.0~397 X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/Bv9ARM.ch13.html?a=commitdiff_plain;h=71d1d39e6139c025729ba03bca772ab4777e85df;p=minix.git Import NetBSD touch command Replaces the 'touch' functionality provided by commands/touch. --- diff --git a/commands/Makefile b/commands/Makefile index 9e31ec449..57ae5b0b6 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -26,7 +26,7 @@ SUBDIR= add_route arp ash at backup btrace \ slip spell sprofalyze sprofdiff srccrc \ svclog svrctl swifi synctree sysenv \ syslogd tail tcpd tcpdp tcpstat telnet \ - telnetd term termcap tget time touch \ + telnetd term termcap tget time \ truncate udpstat umount \ unstack update uud uue version vol \ whereis which writeisofs fetch \ diff --git a/commands/touch/Makefile b/commands/touch/Makefile deleted file mode 100644 index 29eb115f8..000000000 --- a/commands/touch/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# $NetBSD: Makefile,v 1.3 1994/12/07 09:19:47 jtc Exp $ -# @(#)Makefile 8.1 (Berkeley) 6/6/93 - -PROG= touch - -.include diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 242e3a056..046617037 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -25,7 +25,7 @@ SUBDIR= asa \ \ sdiff sed seq shlock \ shuffle sort split stat su \ - tee tic tput \ + tee tic touch tput \ tr true tsort tty ul uname unexpand unifdef \ uniq units unvis unzip users \ uuidgen vis \ diff --git a/usr.bin/touch/Makefile b/usr.bin/touch/Makefile new file mode 100644 index 000000000..b5438269c --- /dev/null +++ b/usr.bin/touch/Makefile @@ -0,0 +1,8 @@ +# $NetBSD: Makefile,v 1.4 2012/07/25 01:23:46 christos Exp $ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 + +PROG= touch +LDADD+= -lutil +DPADD+= ${LIBUTIL} + +.include diff --git a/commands/touch/touch.1 b/usr.bin/touch/touch.1 similarity index 76% rename from commands/touch/touch.1 rename to usr.bin/touch/touch.1 index 6ec2c1356..d738cd175 100644 --- a/commands/touch/touch.1 +++ b/usr.bin/touch/touch.1 @@ -1,5 +1,4 @@ -.\" $OpenBSD: touch.1,v 1.14 2007/08/06 19:16:06 sobrado Exp $ -.\" $NetBSD: touch.1,v 1.8 1995/08/31 22:10:05 jtc Exp $ +.\" $NetBSD: touch.1,v 1.25 2012/10/24 02:46:25 pgoyette Exp $ .\" .\" Copyright (c) 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -33,27 +32,30 @@ .\" .\" @(#)touch.1 8.3 (Berkeley) 4/28/95 .\" -.Dd $Mdocdate: August 6 2007 $ +.Dd October 22, 2012 .Dt TOUCH 1 .Os .Sh NAME .Nm touch .Nd change file access and modification times .Sh SYNOPSIS -.Nm touch -.Op Fl acm +.Nm +.Op Fl acfhm +.Op Fl d Ar human-datetime +.Op Fl Fl date Ar human-datetime .Op Fl r Ar file -.Op Fl t Ar [[CC]YY]MMDDhhmm[.SS] -.Ar +.Op Fl Fl reference Ar file +.Op Fl t Ar datetime +.Ar file ... .Sh DESCRIPTION The .Nm -utility sets the modification and access times of files to the +utility changes the access and modification times of files to the current time of day. If the file doesn't exist, it is created with default permissions. .Pp -The options are as follows: -.Bl -tag -width Ds +The following options are available: +.Bl -tag -width "-d human-datetime" .It Fl a Change the access time of the file. The modification time of the file is not changed unless the @@ -65,17 +67,35 @@ The .Nm utility does not treat this as an error. No error messages are displayed and the exit value is not affected. +.It Fl d Ar human-datetime +.It Fl Fl date Ar human-datetime +Parse +.Ar human-datetime +using the human datetime parser +.Xr parsedate 3 . +.It Fl f +This flag has no effect; it is accepted for compatibility reasons. +.It Fl h +If +.Ar file +is a symbolic link, access and/or modification time of the link is changed. +This option implies +.Fl c . .It Fl m Change the modification time of the file. The access time of the file is not changed unless the .Fl a flag is also specified. .It Fl r Ar file -Use the access and modification times from the specified file +.It Fl Fl reference Ar file +Use the access and modifications times from +.Ar file instead of the current time of day. -.It Fl t Ar [[CC]YY]MMDDhhmm[.SS] +.It Fl t Ar datetime Change the access and modification times to the specified time. -The argument should be in the form +The argument +.Ar datetime +should be in the form .Dq [[CC]YY]MMDDhhmm[.SS] where each pair of letters represents the following: .Pp @@ -120,22 +140,21 @@ letter pair is not specified, the value defaults to 0. .El .Pp The -.Nm -utility exits 0 on success or >0 if an error occurred. -.Sh SEE ALSO -.Xr utimes 2 -.Sh STANDARDS -The -.Nm -utility is compliant with the -.St -p1003.1-2004 -specification. -.Pp +.Fl d , +.Fl r , +and +.Fl t +options are mutually exclusive. +If more than one of these options is present, the last one is used. +.Sh EXIT STATUS +.Ex -std +.Sh COMPATIBILITY The obsolescent form of -.Nm touch , +.Nm , where a time format is specified as the first argument, is supported. When no -.Fl r +.Fl d , +.Fl r , or .Fl t option is specified, there are at least two arguments, and the first @@ -154,10 +173,20 @@ letter pairs are treated as their counterparts specified to the option. If the .Dq YY -letter pair is in the range 69 to 99, the year is set from 1969 to 1999; +letter pair is in the range 69 to 99, the year is set to 1969 to 1999, otherwise, the year is set in the 21st century. +.Sh SEE ALSO +.Xr utimes 2 +.Sh STANDARDS +The +.Nm +utility is expected to be a superset of the +.St -p1003.2 +specification. .Sh HISTORY A .Nm utility appeared in .At v7 . +.Sh BUGS +A symbolic link can't be a reference file of access and/or modification time. diff --git a/commands/touch/touch.c b/usr.bin/touch/touch.c similarity index 55% rename from commands/touch/touch.c rename to usr.bin/touch/touch.c index c5d941939..37ce4a544 100644 --- a/commands/touch/touch.c +++ b/usr.bin/touch/touch.c @@ -1,5 +1,4 @@ -/* $OpenBSD: touch.c,v 1.17 2007/08/06 19:16:06 sobrado Exp $ */ -/* $NetBSD: touch.c,v 1.11 1995/08/31 22:10:06 jtc Exp $ */ +/* $NetBSD: touch.c,v 1.32 2012/10/22 21:51:58 christos Exp $ */ /* * Copyright (c) 1993 @@ -30,11 +29,23 @@ * SUCH DAMAGE. */ +#include +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)touch.c 8.2 (Berkeley) 4/28/95"; +#endif +__RCSID("$NetBSD: touch.c,v 1.32 2012/10/22 21:51:58 christos Exp $"); +#endif /* not lint */ + #include #include #include -#include #include #include #include @@ -43,42 +54,60 @@ #include #include #include -#include #include #include - -void stime_arg1(char *, struct timeval *); -void stime_arg2(char *, int, struct timeval *); -void stime_file(char *, struct timeval *); -__dead void usage(void); - -char * __progname; +#include +#include + +static void stime_arg0(char *, struct timeval *); +static void stime_arg1(char *, struct timeval *); +static void stime_arg2(char *, int, struct timeval *); +static void stime_file(char *, struct timeval *); +__dead static void usage(void); + +struct option touch_longopts[] = { + { "date", required_argument, 0, + 'd' }, + { "reference", required_argument, 0, + 'r' }, + { NULL, 0, 0, + 0 }, +}; int main(int argc, char *argv[]) { - struct stat sb; - struct timeval tv[2]; - int aflag, cflag, mflag, ch, fd, len, rval, timeset; - char *p; + struct stat sb; + struct timeval tv[2]; + int aflag, cflag, hflag, mflag, ch, fd, len, rval, timeset; + char *p; + int (*change_file_times)(const char *, const struct timeval *); + int (*get_file_status)(const char *, struct stat *); - (void)setlocale(LC_ALL, ""); - __progname = argv[0]; + setlocale(LC_ALL, ""); - aflag = cflag = mflag = timeset = 0; + aflag = cflag = hflag = mflag = timeset = 0; if (gettimeofday(&tv[0], NULL)) err(1, "gettimeofday"); - while ((ch = getopt(argc, argv, "acfmr:t:")) != -1) - switch (ch) { + while ((ch = getopt_long(argc, argv, "acd:fhmr:t:", touch_longopts, + NULL)) != -1) + switch(ch) { case 'a': aflag = 1; break; case 'c': cflag = 1; break; + case 'd': + timeset = 1; + stime_arg0(optarg, tv); + break; case 'f': break; + case 'h': + hflag = 1; + break; case 'm': mflag = 1; break; @@ -90,6 +119,7 @@ main(int argc, char *argv[]) timeset = 1; stime_arg1(optarg, tv); break; + case '?': default: usage(); } @@ -100,6 +130,15 @@ main(int argc, char *argv[]) if (aflag == 0 && mflag == 0) aflag = mflag = 1; + if (hflag) { + cflag = 1; /* Don't create new file */ + change_file_times = lutimes; + get_file_status = lstat; + } else { + change_file_times = utimes; + get_file_status = stat; + } + /* * If no -r or -t flag, at least two operands, the first of which * is an 8 or 10 digit number, use the obsolete time specification. @@ -120,15 +159,15 @@ main(int argc, char *argv[]) if (*argv == NULL) usage(); - for (rval = 0; *argv; ++argv) { + for (rval = EXIT_SUCCESS; *argv; ++argv) { /* See if the file exists. */ - if (stat(*argv, &sb)) { + if ((*get_file_status)(*argv, &sb)) { if (!cflag) { /* Create the file. */ fd = open(*argv, O_WRONLY | O_CREAT, DEFFILEMODE); if (fd == -1 || fstat(fd, &sb) || close(fd)) { - rval = 1; + rval = EXIT_FAILURE; warn("%s", *argv); continue; } @@ -139,19 +178,18 @@ main(int argc, char *argv[]) } else continue; } - if (!aflag) TIMESPEC_TO_TIMEVAL(&tv[0], &sb.st_atimespec); if (!mflag) TIMESPEC_TO_TIMEVAL(&tv[1], &sb.st_mtimespec); /* Try utimes(2). */ - if (!utimes(*argv, tv)) + if (!(*change_file_times)(*argv, tv)) continue; /* If the user specified a time, nothing else we can do. */ if (timeset) { - rval = 1; + rval = EXIT_FAILURE; warn("%s", *argv); } @@ -161,10 +199,10 @@ main(int argc, char *argv[]) * The permission checks are different, too, in that the * ability to write the file is sufficient. Take a shot. */ - if (!utimes(*argv, NULL)) + if (!(*change_file_times)(*argv, NULL)) continue; - rval = 1; + rval = EXIT_FAILURE; warn("%s", *argv); } exit(rval); @@ -172,135 +210,128 @@ main(int argc, char *argv[]) #define ATOI2(s) ((s) += 2, ((s)[-2] - '0') * 10 + ((s)[-1] - '0')) -void +static void +stime_arg0(char *arg, struct timeval *tvp) +{ + tvp[1].tv_sec = tvp[0].tv_sec = parsedate(arg, NULL, NULL); + if (tvp[0].tv_sec == -1) + errx(EXIT_FAILURE, "Could not parse `%s'", arg); + tvp[0].tv_usec = tvp[1].tv_usec = 0; +} + +static void stime_arg1(char *arg, struct timeval *tvp) { - struct tm *lt; - time_t tmptime; - int yearset; - char *dot, *p; + struct tm *t; + time_t tmptime; + int yearset; + char *p; /* 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"); /* [[CC]YY]MMDDhhmm[.SS] */ - for (p = arg, dot = NULL; *p != '\0'; p++) { - if (*p == '.' && dot == NULL) - dot = p; - else if (!isdigit((unsigned char)*p)) - goto terr; - } - if (dot == NULL) - lt->tm_sec = 0; /* Seconds defaults to 0. */ + if ((p = strchr(arg, '.')) == NULL) + t->tm_sec = 0; /* Seconds defaults to 0. */ else { - *dot++ = '\0'; - if (strlen(dot) != 2) - goto terr; - lt->tm_sec = ATOI2(dot); - if (lt->tm_sec > 61) /* Could be leap second. */ + if (strlen(p + 1) != 2) goto terr; + *p++ = '\0'; + t->tm_sec = ATOI2(p); } - + yearset = 0; switch (strlen(arg)) { case 12: /* CCYYMMDDhhmm */ - lt->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE; + t->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE; yearset = 1; /* FALLTHROUGH */ case 10: /* YYMMDDhhmm */ if (yearset) { - yearset = ATOI2(arg); - lt->tm_year += yearset; + t->tm_year += ATOI2(arg); } else { yearset = ATOI2(arg); - /* Preserve current century. */ - lt->tm_year = ((lt->tm_year / 100) * 100) + yearset; + if (yearset < 69) + t->tm_year = yearset + 2000 - TM_YEAR_BASE; + else + t->tm_year = yearset + 1900 - TM_YEAR_BASE; } /* FALLTHROUGH */ case 8: /* MMDDhhmm */ - lt->tm_mon = ATOI2(arg); - 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); + --t->tm_mon; /* Convert from 01-12 to 00-11 */ + /* FALLTHROUGH */ + case 6: + t->tm_mday = ATOI2(arg); + /* FALLTHROUGH */ + case 4: + t->tm_hour = ATOI2(arg); + /* FALLTHROUGH */ + case 2: + t->tm_min = ATOI2(arg); break; default: goto terr; } - 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"); - - 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; + if ((t = localtime(&tmptime)) == NULL) + err(EXIT_FAILURE, "localtime"); + + 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); }