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authorJo-Philipp Wich <jow@openwrt.org>2011-11-17 01:11:56 +0000
committerJo-Philipp Wich <jow@openwrt.org>2011-11-17 01:11:56 +0000
commit681ec3b21e7bf887b87b90421d87e3dd6ca018aa (patch)
treeae385017a9e8b57e0734b6027c1b749da736c279 /package/busybox/patches
parent86bee92665f3aae177df0bf95e18e6bdb2abc1be (diff)
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[package] busybox: add a "date -k" to set the kernel timezone from the current localtime utc offset
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29203 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/busybox/patches')
-rw-r--r--package/busybox/patches/911-date-k-flag.patch83
1 files changed, 83 insertions, 0 deletions
diff --git a/package/busybox/patches/911-date-k-flag.patch b/package/busybox/patches/911-date-k-flag.patch
new file mode 100644
index 0000000000..c4f6db4db4
--- /dev/null
+++ b/package/busybox/patches/911-date-k-flag.patch
@@ -0,0 +1,83 @@
+--- a/coreutils/date.c
++++ b/coreutils/date.c
+@@ -123,6 +123,7 @@
+ //usage: IF_FEATURE_DATE_ISOFMT(
+ //usage: "\n -D FMT Use FMT for -d TIME conversion"
+ //usage: )
++//usage: "\n -k Set Kernel timezone from localtime and exit"
+ //usage: "\n"
+ //usage: "\nRecognized TIME formats:"
+ //usage: "\n hh:mm[:ss]"
+@@ -135,6 +136,7 @@
+ //usage: "Wed Apr 12 18:52:41 MDT 2000\n"
+
+ #include "libbb.h"
++#include <sys/time.h>
+ #if ENABLE_FEATURE_DATE_NANO
+ # include <sys/syscall.h>
+ #endif
+@@ -145,8 +147,9 @@ enum {
+ OPT_UTC = (1 << 2), /* u */
+ OPT_DATE = (1 << 3), /* d */
+ OPT_REFERENCE = (1 << 4), /* r */
+- OPT_TIMESPEC = (1 << 5) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
+- OPT_HINT = (1 << 6) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
++ OPT_KERNELTZ = (1 << 5), /* k */
++ OPT_TIMESPEC = (1 << 6) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
++ OPT_HINT = (1 << 7) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
+ };
+
+ static void maybe_set_utc(int opt)
+@@ -164,12 +167,15 @@ static const char date_longopts[] ALIGN1
+ /* "universal\0" No_argument "u" */
+ "date\0" Required_argument "d"
+ "reference\0" Required_argument "r"
++ "set-kernel-tz\0" No_argument "k"
+ ;
+ #endif
+
+ int date_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+ int date_main(int argc UNUSED_PARAM, char **argv)
+ {
++ time_t tt;
++ struct timezone tz;
+ struct timespec ts;
+ struct tm tm_time;
+ char buf_fmt_dt2str[64];
+@@ -184,7 +190,7 @@ int date_main(int argc UNUSED_PARAM, cha
+ opt_complementary = "d--s:s--d"
+ IF_FEATURE_DATE_ISOFMT(":R--I:I--R");
+ IF_LONG_OPTS(applet_long_options = date_longopts;)
+- opt = getopt32(argv, "Rs:ud:r:"
++ opt = getopt32(argv, "Rs:ud:r:k"
+ IF_FEATURE_DATE_ISOFMT("I::D:"),
+ &date_str, &date_str, &filename
+ IF_FEATURE_DATE_ISOFMT(, &isofmt_arg, &fmt_str2dt));
+@@ -241,6 +247,27 @@ int date_main(int argc UNUSED_PARAM, cha
+ if (*argv)
+ bb_show_usage();
+
++ /* Setting of kernel timezone was requested */
++ if (opt & OPT_KERNELTZ) {
++ tt = time(NULL);
++ localtime_r(&tt, &tm_time);
++
++ /* workaround warp_clock() on first invocation */
++ memset(&tz, 0, sizeof(tz));
++ settimeofday(NULL, &tz);
++
++ memset(&tz, 0, sizeof(tz));
++ tz.tz_minuteswest = -(tm_time.tm_gmtoff / 60);
++
++ if (settimeofday(NULL, &tz))
++ {
++ bb_perror_msg("can't set kernel time zone");
++ return EXIT_FAILURE;
++ }
++
++ return EXIT_SUCCESS;
++ }
++
+ /* Now we have parsed all the information except the date format
+ * which depends on whether the clock is being set or read */
+