svn commit: r345050 - head/bin/date

[Warner Losh]

Author: imp
Date: Tue Mar 12 04:49:59 2019
New Revision: 345050
URL: https://svnweb.freebsd.org/changeset/base/345050

Log:
  Remove now useless -d and -t flags.
  
  These were used to set dst flag and minutes west of UTC
  respectively. These are obsolete and have been removed form the
  kernel. These existed primarily to faithfully emulate early
  Unix ABIs that have been removed from FreeBSD.
  
  Reviewed by: jbh@, brooks@
  Differential Revision: https://reviews.freebsd.org/D19550

Modified:
  head/bin/date/date.c

Modified: head/bin/date/date.c
==============================================================================
--- head/bin/date/date.c	Tue Mar 12 04:49:47 2019	(r345049)
+++ head/bin/date/date.c	Tue Mar 12 04:49:59 2019	(r345050)
@@ -91,14 +91,12 @@ static const char *rfc2822_format = "%a, %d %b %Y %T %
 int
 main(int argc, char *argv[])
 {
-	struct timezone tz;
 	int ch, rflag;
 	bool Iflag, jflag, nflag, Rflag;
 	const char *format;
 	char buf[1024];
-	char *endptr, *fmt;
+	char *fmt;
 	char *tmp;
-	int set_timezone;
 	struct vary *v;
 	const struct vary *badv;
 	struct tm *lt;
@@ -108,18 +106,10 @@ main(int argc, char *argv[])
 	v = NULL;
 	fmt = NULL;
 	(void) setlocale(LC_TIME, "");
-	tz.tz_dsttime = tz.tz_minuteswest = 0;
 	rflag = 0;
 	Iflag = jflag = nflag = Rflag = 0;
-	set_timezone = 0;
-	while ((ch = getopt(argc, argv, "d:f:I::jnRr:t:uv:")) != -1)
+	while ((ch = getopt(argc, argv, "f:I::jnRr:uv:")) != -1)
 		switch((char)ch) {
-		case 'd':		/* daylight savings time */
-			tz.tz_dsttime = strtol(optarg, &endptr, 10) ? 1 : 0;
-			if (endptr == optarg || *endptr != '\0')
-				usage();
-			set_timezone = 1;
-			break;
 		case 'f':
 			fmt = optarg;
 			break;
@@ -160,13 +150,6 @@ main(int argc, char *argv[])
 					usage();
 			}
 			break;
-		case 't':		/* minutes west of UTC */
-					/* error check; don't allow "PST" */
-			tz.tz_minuteswest = strtol(optarg, &endptr, 10);
-			if (endptr == optarg || *endptr != '\0')
-				usage();
-			set_timezone = 1;
-			break;
 		case 'u':		/* do everything in UTC */
 			(void)setenv("TZ", "UTC0", 1);
 			break;
@@ -179,13 +162,6 @@ main(int argc, char *argv[])
 	argc -= optind;
 	argv += optind;
 
-	/*
-	 * If -d or -t, set the timezone or daylight savings time; this
-	 * doesn't belong here; the kernel should not know about either.
-	 */
-	if (set_timezone && settimeofday(NULL, &tz) != 0)
-		err(1, "settimeofday (timezone)");
-
 	if (!rflag && time(&tval) == -1)
 		err(1, "time");
 
@@ -411,8 +387,7 @@ static void
 usage(void)
 {
 	(void)fprintf(stderr, "%s\n%s\n%s\n",
-	    "usage: date [-jnRu] [-d dst] [-r seconds|file] [-t west] "
-	    "[-v[+|-]val[ymwdHMS]]",
+	    "usage: date [-jnRu] [-r seconds|file] [-v[+|-]val[ymwdHMS]]",
 	    "            "
 	    "[-I[date | hours | minutes | seconds]]",
 	    "            "