> 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

Can we get a commit to stable/12 that puts out a warning if
anyone uses -d or -t to the date command please?


> 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]]",
>           "            "
> 
> 

-- 
Rod Grimes                                                 rgri...@freebsd.org
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