#include <unistd.h>
#include "busybox.h"
-/* Copied from linux/rtc.h to eliminate the kernel dependancy */
+/* Copied from linux/rtc.h to eliminate the kernel dependency */
struct linux_rtc_time {
int tm_sec;
int tm_min;
int tm_yday;
int tm_isdst;
};
-
+
#define RTC_SET_TIME _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time */
#define RTC_RD_TIME _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time */
if ( ioctl ( rtc, RTC_RD_TIME, &tm ) < 0 )
bb_perror_msg_and_die ( "Could not read time from RTC" );
tm. tm_isdst = -1; // not known
-
+
close ( rtc );
- if ( utc ) {
+ if ( utc ) {
oldtz = getenv ( "TZ" );
setenv ( "TZ", "UTC 0", 1 );
tzset ( );
}
-
+
t = mktime ( &tm );
-
+
if ( utc ) {
if ( oldtz )
setenv ( "TZ", oldtz, 1 );
if (( rtc = open ( "/dev/misc/rtc", O_WRONLY )) < 0 )
bb_perror_msg_and_die ( "Could not access RTC" );
}
-
+
tm = *( utc ? gmtime ( &t ) : localtime ( &t ));
tm. tm_isdst = 0;
-
+
if ( ioctl ( rtc, RTC_SET_TIME, &tm ) < 0 )
bb_perror_msg_and_die ( "Could not set the RTC time" );
-
+
close ( rtc );
}
time_t t;
char buffer [64];
- t = read_rtc ( utc );
+ t = read_rtc ( utc );
ptm = localtime ( &t ); /* Sets 'tzname[]' */
-
+
safe_strncpy ( buffer, ctime ( &t ), sizeof( buffer ));
if ( buffer [0] )
buffer [bb_strlen ( buffer ) - 1] = 0;
-
+
//printf ( "%s %.6f seconds %s\n", buffer, 0.0, utc ? "" : ( ptm-> tm_isdst ? tzname [1] : tzname [0] ));
printf ( "%s %.6f seconds\n", buffer, 0.0 );
-
+
return 0;
}
{
struct timeval tv = { 0, 0 };
const struct timezone tz = { timezone/60 - 60*daylight, 0 };
-
+
tv. tv_sec = read_rtc ( utc );
if ( settimeofday ( &tv, &tz ))
{
int utc = 0;
FILE *f = fopen ( "/var/lib/hwclock/adjtime", "r" );
-
+
if ( f ) {
char buffer [128];
-
+
while ( fgets ( buffer, sizeof( buffer ), f )) {
int len = bb_strlen ( buffer );
-
+
while ( len && isspace ( buffer [len - 1] ))
len--;
-
+
buffer [len] = 0;
-
+
if ( strncmp ( buffer, "UTC", 3 ) == 0 ) {
utc = 1;
break;
extern int hwclock_main ( int argc, char **argv )
{
unsigned long opt;
- int utc = 0;
+ int utc;
#ifdef CONFIG_FEATURE_HWCLOCK_LONGOPTIONS
static const struct option hwclock_long_options[] = {
bb_applet_long_options = hwclock_long_options;
#endif
- bb_opt_complementaly = "r~ws:w~rs:s~wr";
+ bb_opt_complementaly = "r~ws:w~rs:s~wr:l~u:u~l";
opt = bb_getopt_ulflags(argc, argv, "lursw");
/* Check only one mode was given */
if(opt & 0x80000000UL) {
bb_show_usage();
}
- /* If -u or -l wasnt give check if we are using utc */
- if ((opt & (HWCLOCK_OPT_UTC | HWCLOCK_OPT_LOCALTIME)) == 0) {
+ /* If -u or -l wasn't given check if we are using utc */
+ if (opt & (HWCLOCK_OPT_UTC | HWCLOCK_OPT_LOCALTIME))
+ utc = opt & HWCLOCK_OPT_UTC;
+ else
utc = check_utc();
- }
-
+
if (opt & HWCLOCK_OPT_HCTOSYS) {
return to_sys_clock ( utc );
}
return from_sys_clock ( utc );
} else {
/* default HWCLOCK_OPT_SHOW */
- return show_clock ( utc );
+ return show_clock ( utc );
}
}