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mostly style fixes

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This commit is contained in:
Denis Vlasenko
2006-11-01 10:25:35 +00:00
parent 048c93cc55
commit 9225854144
12 changed files with 156 additions and 161 deletions
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131
util-linux/hwclock.c
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@ -10,14 +10,7 @@
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <ctype.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>
#include "busybox.h"
/* Copied from linux/rtc.h to eliminate the kernel dependency */
@ -42,59 +35,62 @@ struct linux_rtc_time {
# endif
#endif
static time_t read_rtc(int utc)
static int xopen_rtc(int flags)
{
int rtc;
rtc = open("/dev/rtc", flags);
if (rtc < 0) {
rtc = open("/dev/misc/rtc", flags);
if (rtc < 0)
bb_perror_msg_and_die("cannot access RTC");
}
return rtc;
}
static time_t read_rtc(int utc)
{
struct tm tm;
char *oldtz = 0;
time_t t = 0;
int rtc = xopen_rtc(O_RDONLY);
if (( rtc = open ( "/dev/rtc", O_RDONLY )) < 0 ) {
if (( rtc = open ( "/dev/misc/rtc", O_RDONLY )) < 0 )
bb_perror_msg_and_die ( "cannot access RTC" );
}
memset ( &tm, 0, sizeof( struct tm ));
if ( ioctl ( rtc, RTC_RD_TIME, &tm ) < 0 )
bb_perror_msg_and_die ( "cannot read time from RTC" );
memset(&tm, 0, sizeof(struct tm));
if (ioctl(rtc, RTC_RD_TIME, &tm) < 0 )
bb_perror_msg_and_die("cannot read time from RTC");
tm.tm_isdst = -1; /* not known */
close ( rtc );
close(rtc);
if ( utc ) {
oldtz = getenv ( "TZ" );
setenv ( "TZ", "UTC 0", 1 );
tzset ( );
if (utc) {
oldtz = getenv("TZ");
setenv("TZ", "UTC 0", 1);
tzset();
}
t = mktime ( &tm );
t = mktime(&tm);
if ( utc ) {
if ( oldtz )
setenv ( "TZ", oldtz, 1 );
if (utc) {
if (oldtz)
setenv("TZ", oldtz, 1);
else
unsetenv ( "TZ" );
tzset ( );
unsetenv("TZ");
tzset();
}
return t;
}
static void write_rtc(time_t t, int utc)
{
int rtc;
struct tm tm;
int rtc = xopen_rtc(O_WRONLY);
if (( rtc = open ( "/dev/rtc", O_WRONLY )) < 0 ) {
if (( rtc = open ( "/dev/misc/rtc", O_WRONLY )) < 0 )
bb_perror_msg_and_die ( "cannot access RTC" );
}
tm = *( utc ? gmtime ( &t ) : localtime ( &t ));
tm = *(utc ? gmtime(&t) : localtime(&t));
tm.tm_isdst = 0;
if ( ioctl ( rtc, RTC_SET_TIME, &tm ) < 0 )
bb_perror_msg_and_die ( "cannot set the RTC time" );
if (ioctl(rtc, RTC_SET_TIME, &tm) < 0)
bb_perror_msg_and_die("cannot set the RTC time");
close ( rtc );
close(rtc);
}
static int show_clock(int utc)
@ -103,15 +99,15 @@ static int show_clock(int utc)
time_t t;
RESERVE_CONFIG_BUFFER(buffer, 64);
t = read_rtc ( utc );
ptm = localtime ( &t ); /* Sets 'tzname[]' */
t = read_rtc(utc);
ptm = localtime(&t); /* Sets 'tzname[]' */
safe_strncpy ( buffer, ctime ( &t ), 64);
if ( buffer [0] )
buffer [strlen ( buffer ) - 1] = 0;
safe_strncpy(buffer, ctime(&t), 64);
if (buffer[0])
buffer[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 );
//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);
RELEASE_CONFIG_BUFFER(buffer);
return 0;
@ -122,10 +118,10 @@ static int to_sys_clock(int utc)
struct timeval tv = { 0, 0 };
const struct timezone tz = { timezone/60 - 60*daylight, 0 };
tv.tv_sec = read_rtc ( utc );
tv.tv_sec = read_rtc(utc);
if ( settimeofday ( &tv, &tz ))
bb_perror_msg_and_die ( "settimeofday() failed" );
if (settimeofday(&tv, &tz))
bb_perror_msg_and_die("settimeofday() failed");
return 0;
}
@ -135,10 +131,10 @@ static int from_sys_clock(int utc)
struct timeval tv = { 0, 0 };
struct timezone tz = { 0, 0 };
if ( gettimeofday ( &tv, &tz ))
bb_perror_msg_and_die ( "gettimeofday() failed" );
if (gettimeofday(&tv, &tz))
bb_perror_msg_and_die("gettimeofday() failed");
write_rtc ( tv.tv_sec, utc );
write_rtc(tv.tv_sec, utc);
return 0;
}
@ -150,43 +146,43 @@ static int from_sys_clock(int utc)
static int check_utc(void)
{
int utc = 0;
FILE *f = fopen ( ADJTIME_PATH, "r" );
FILE *f = fopen(ADJTIME_PATH, "r");
if ( f ) {
if (f) {
RESERVE_CONFIG_BUFFER(buffer, 128);
while ( fgets ( buffer, sizeof( buffer ), f )) {
int len = strlen ( buffer );
while (fgets(buffer, sizeof(buffer), f)) {
int len = strlen(buffer);
while ( len && isspace ( buffer [len - 1] ))
while (len && isspace(buffer[len - 1]))
len--;
buffer [len] = 0;
buffer[len] = 0;
if ( strncmp ( buffer, "UTC", 3 ) == 0 ) {
if (strncmp(buffer, "UTC", 3) == 0 ) {
utc = 1;
break;
}
}
fclose ( f );
fclose(f);
RELEASE_CONFIG_BUFFER(buffer);
}
return utc;
}
#define HWCLOCK_OPT_LOCALTIME 0x01
#define HWCLOCK_OPT_UTC 0x02
#define HWCLOCK_OPT_SHOW 0x04
#define HWCLOCK_OPT_HCTOSYS 0x08
#define HWCLOCK_OPT_SYSTOHC 0x10
#define HWCLOCK_OPT_LOCALTIME 0x01
#define HWCLOCK_OPT_UTC 0x02
#define HWCLOCK_OPT_SHOW 0x04
#define HWCLOCK_OPT_HCTOSYS 0x08
#define HWCLOCK_OPT_SYSTOHC 0x10
int hwclock_main ( int argc, char **argv )
int hwclock_main(int argc, char **argv )
{
unsigned opt;
int utc;
#if ENABLE_FEATURE_HWCLOCK_LONG_OPTIONS
static const struct option hwclock_long_options[] = {
static const struct option hwclock_long_options[] = {
{ "localtime", 0, 0, 'l' },
{ "utc", 0, 0, 'u' },
{ "show", 0, 0, 'r' },
@ -196,7 +192,6 @@ static const struct option hwclock_long_options[] = {
};
applet_long_options = hwclock_long_options;
#endif
opt_complementary = "?:r--ws:w--rs:s--wr:l--u:u--l";
opt = getopt32(argc, argv, "lursw");
@ -207,12 +202,12 @@ static const struct option hwclock_long_options[] = {
utc = check_utc();
if (opt & HWCLOCK_OPT_HCTOSYS) {
return to_sys_clock ( utc );
return to_sys_clock(utc);
}
else if (opt & HWCLOCK_OPT_SYSTOHC) {
return from_sys_clock ( utc );
return from_sys_clock(utc);
} else {
/* default HWCLOCK_OPT_SHOW */
return show_clock ( utc );
return show_clock(utc);
}
}