package/busybox/patches/911-date-k-flag.patch

   1 diff -urN busybox-1.19.4/coreutils/date.c busybox-1.19.4.new/coreutils/date.c
   2 --- busybox-1.19.4/coreutils/date.c     2012-02-04 20:24:55.000000000 +0100
   3 +++ busybox-1.19.4.new/coreutils/date.c 2012-11-23 16:48:21.945200539 +0100
   4 @@ -123,6 +123,7 @@
   5  //usage:       IF_FEATURE_DATE_ISOFMT(
   6  //usage:     "\n       -D FMT          Use FMT for -d TIME conversion"
   7  //usage:       )
   8 +//usage:     "\n       -k              Set Kernel timezone from localtime and exit"
   9  //usage:     "\n"
  10  //usage:     "\nRecognized TIME formats:"
  11  //usage:     "\n       hh:mm[:ss]"
  12 @@ -135,6 +136,7 @@
  13  //usage:       "Wed Apr 12 18:52:41 MDT 2000\n"
  14
  15  #include "libbb.h"
  16 +#include <sys/time.h>
  17  #if ENABLE_FEATURE_DATE_NANO
  18  # include <sys/syscall.h>
  19  #endif
  20 @@ -145,8 +147,9 @@
  21         OPT_UTC       = (1 << 2), /* u */
  22         OPT_DATE      = (1 << 3), /* d */
  23         OPT_REFERENCE = (1 << 4), /* r */
  24 -       OPT_TIMESPEC  = (1 << 5) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
  25 -       OPT_HINT      = (1 << 6) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
  26 +       OPT_KERNELTZ  = (1 << 5), /* k */
  27 +       OPT_TIMESPEC  = (1 << 6) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
  28 +       OPT_HINT      = (1 << 7) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
  29  };
  30
  31  static void maybe_set_utc(int opt)
  32 @@ -164,12 +167,15 @@
  33         /*      "universal\0" No_argument       "u" */
  34                 "date\0"      Required_argument "d"
  35                 "reference\0" Required_argument "r"
  36 +               "set-kernel-tz\0" No_argument   "k"
  37                 ;
  38  #endif
  39
  40  int date_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  41  int date_main(int argc UNUSED_PARAM, char **argv)
  42  {
  43 +       time_t tt;
  44 +       struct timezone tz;
  45         struct timespec ts;
  46         struct tm tm_time;
  47         char buf_fmt_dt2str[64];
  48 @@ -184,7 +190,7 @@
  49         opt_complementary = "d--s:s--d"
  50                 IF_FEATURE_DATE_ISOFMT(":R--I:I--R");
  51         IF_LONG_OPTS(applet_long_options = date_longopts;)
  52 -       opt = getopt32(argv, "Rs:ud:r:"
  53 +       opt = getopt32(argv, "Rs:ud:r:k"
  54                         IF_FEATURE_DATE_ISOFMT("I::D:"),
  55                         &date_str, &date_str, &filename
  56                         IF_FEATURE_DATE_ISOFMT(, &isofmt_arg, &fmt_str2dt));
  57 @@ -241,6 +247,31 @@
  58         if (*argv)
  59                 bb_show_usage();
  60
  61 +       /* Setting of kernel timezone was requested */
  62 +       if (opt & OPT_KERNELTZ) {
  63 +               tt = time(NULL);
  64 +               localtime_r(&tt, &tm_time);
  65 +
  66 +               /* workaround warp_clock() on first invocation */
  67 +               memset(&tz, 0, sizeof(tz));
  68 +               settimeofday(NULL, &tz);
  69 +
  70 +               memset(&tz, 0, sizeof(tz));
  71 +#ifdef __USE_BSD
  72 +               tz.tz_minuteswest = -(tm_time.tm_gmtoff / 60);
  73 +#else
  74 +               tz.tz_minuteswest = -(tm_time.__tm_gmtoff / 60);
  75 +#endif
  76 +
  77 +               if (settimeofday(NULL, &tz))
  78 +               {
  79 +                       bb_perror_msg("can't set kernel time zone");
  80 +                       return EXIT_FAILURE;
  81 +               }
  82 +
  83 +               return EXIT_SUCCESS;
  84 +       }
  85 +
  86         /* Now we have parsed all the information except the date format
  87          * which depends on whether the clock is being set or read */
  88