* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//config:config HWCLOCK
-//config: bool "hwclock"
+//config: bool "hwclock (5.8 kb)"
//config: default y
//config: select PLATFORM_LINUX
//config: help
-//config: The hwclock utility is used to read and set the hardware clock
-//config: on a system. This is primarily used to set the current time on
-//config: shutdown in the hardware clock, so the hardware will keep the
-//config: correct time when Linux is _not_ running.
-//config:
-//config:config FEATURE_HWCLOCK_LONG_OPTIONS
-//config: bool "Support long options (--hctosys,...)"
-//config: default y
-//config: depends on HWCLOCK && LONG_OPTS
-//config: help
-//config: By default, the hwclock utility only uses short options. If you
-//config: are overly fond of its long options, such as --hctosys, --utc, etc)
-//config: then enable this option.
+//config: The hwclock utility is used to read and set the hardware clock
+//config: on a system. This is primarily used to set the current time on
+//config: shutdown in the hardware clock, so the hardware will keep the
+//config: correct time when Linux is _not_ running.
//config:
//config:config FEATURE_HWCLOCK_ADJTIME_FHS
//config: bool "Use FHS /var/lib/hwclock/adjtime"
//config: default n # util-linux-ng in Fedora 13 still uses /etc/adjtime
//config: depends on HWCLOCK
//config: help
-//config: Starting with FHS 2.3, the adjtime state file is supposed to exist
-//config: at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
-//config: to use the FHS behavior, answer Y here, otherwise answer N for the
-//config: classic /etc/adjtime path.
+//config: Starting with FHS 2.3, the adjtime state file is supposed to exist
+//config: at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
+//config: to use the FHS behavior, answer Y here, otherwise answer N for the
+//config: classic /etc/adjtime path.
//config:
-//config: pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
+//config: pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
//applet:IF_HWCLOCK(APPLET(hwclock, BB_DIR_SBIN, BB_SUID_DROP))
* On x86, even though code does set hw clock within <1ms of exact
* whole seconds, apparently hw clock (at least on some machines)
* doesn't reset internal fractional seconds to 0,
- * making all this a pointless excercise.
+ * making all this a pointless exercise.
*/
/* If we see that we are N usec away from whole second,
* we'll sleep for N-ADJ usecs. ADJ corrects for the fact
}
//usage:#define hwclock_trivial_usage
-//usage: IF_FEATURE_HWCLOCK_LONG_OPTIONS(
-//usage: "[-r|--show] [-s|--hctosys] [-w|--systohc] [-t|--systz]"
-//usage: " [-l|--localtime] [-u|--utc]"
+//usage: IF_LONG_OPTS(
+//usage: "[-r|--show] [-s|--hctosys] [-w|--systohc] [--systz]"
+//usage: " [--localtime] [-u|--utc]"
//usage: " [-f|--rtc FILE]"
//usage: )
-//usage: IF_NOT_FEATURE_HWCLOCK_LONG_OPTIONS(
+//usage: IF_NOT_LONG_OPTS(
//usage: "[-r] [-s] [-w] [-t] [-l] [-u] [-f FILE]"
//usage: )
//usage:#define hwclock_full_usage "\n\n"
//usage: "\n -r Show hardware clock time"
//usage: "\n -s Set system time from hardware clock"
//usage: "\n -w Set hardware clock from system time"
-//usage: "\n -t Set in-kernel timezone, correct system time"
+//usage: IF_LONG_OPTS(
+//usage: "\n --systz Set in-kernel timezone, correct system time"
+//usage: )
//usage: "\n if hardware clock is in local time"
//usage: "\n -u Assume hardware clock is kept in UTC"
-//usage: "\n -l Assume hardware clock is kept in local time"
+//usage: IF_LONG_OPTS(
+//usage: "\n --localtime Assume hardware clock is kept in local time"
+//usage: )
//usage: "\n -f FILE Use specified device (e.g. /dev/rtc2)"
+//TODO: get rid of incompatible -t and -l aliases to --systz and --localtime
+
#define HWCLOCK_OPT_LOCALTIME 0x01
#define HWCLOCK_OPT_UTC 0x02
#define HWCLOCK_OPT_SHOW 0x04
unsigned opt;
int utc;
-#if ENABLE_FEATURE_HWCLOCK_LONG_OPTIONS
+#if ENABLE_LONG_OPTS
static const char hwclock_longopts[] ALIGN1 =
"localtime\0" No_argument "l" /* short opt is non-standard */
"utc\0" No_argument "u"
"systz\0" No_argument "t" /* short opt is non-standard */
"rtc\0" Required_argument "f"
;
- applet_long_options = hwclock_longopts;
#endif
/* Initialize "timezone" (libc global variable) */
tzset();
- opt_complementary = "r--wst:w--rst:s--wrt:t--rsw:l--u:u--l";
- opt = getopt32(argv, "lurswtf:", &rtcname);
+ opt = getopt32long(argv,
+ "^lurswtf:" "\0" "r--wst:w--rst:s--wrt:t--rsw:l--u:u--l",
+ hwclock_longopts,
+ &rtcname
+ );
/* If -u or -l wasn't given check if we are using utc */
if (opt & (HWCLOCK_OPT_UTC | HWCLOCK_OPT_LOCALTIME))