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Clean internal logic, helps for some unusual cases

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This commit is contained in:
Andrey A. Chernov 1994-12-12 05:20:44 +00:00
parent 18704338bb
commit 62be897817
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=5076
1 changed files with 28 additions and 27 deletions
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55
sbin/adjkerntz/adjkerntz.c
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@ -159,6 +159,9 @@ int main(argc, argv)
return 1;
}
stv = NULL;
stz = NULL;
/* correct the kerneltime for this diffs */
/* subtract kernel offset, if present, old offset too */
@ -202,45 +205,42 @@ int main(argc, argv)
tv.tv_usec = 0; /* we are restarting here... */
stv = &tv;
}
else
stv = NULL;
}
else
stv = NULL;
if (tz.tz_dsttime != 0 || tz.tz_minuteswest != 0) {
tz.tz_dsttime = tz.tz_minuteswest = 0; /* zone info is garbage */
stz = &tz;
}
else
stz = NULL;
if (stz != NULL || stv != NULL) {
if (init && stv != NULL) {
mib[0] = CTL_MACHDEP;
mib[1] = CPU_DISRTCSET;
len = sizeof(disrtcset);
if (sysctl(mib, 2, &disrtcset, &len, NULL, 0) == -1) {
syslog(LOG_ERR, "sysctl(get_disrtcset): %m");
/* if init, don't touch RTC at all */
if (init) {
mib[0] = CTL_MACHDEP;
mib[1] = CPU_DISRTCSET;
len = sizeof(disrtcset);
if (sysctl(mib, 2, &disrtcset, &len, NULL, 0) == -1) {
syslog(LOG_ERR, "sysctl(get_disrtcset): %m");
return 1;
}
if (disrtcset == 0) {
disrtcset = 1;
need_restore = 1;
if (sysctl(mib, 2, NULL, NULL, &disrtcset, len) == -1) {
syslog(LOG_ERR, "sysctl(set_disrtcset): %m");
return 1;
}
if (disrtcset == 0) {
disrtcset = 1;
need_restore = 1;
if (sysctl(mib, 2, NULL, NULL, &disrtcset, len) == -1) {
syslog(LOG_ERR, "sysctl(set_disrtcset): %m");
return 1;
}
}
}
/* stz means that kernel zone shifted */
/* clock needs adjustment even if !init */
if ((init || stz != NULL) && settimeofday(stv, stz)) {
syslog(LOG_ERR, "settimeofday: %m");
return 1;
}
}
if (( (init && (stv != NULL || stz != NULL))
|| (stz != NULL && stv == NULL)
)
&& settimeofday(stv, stz)
) {
syslog(LOG_ERR, "settimeofday: %m");
return 1;
}
/* init: don't write RTC, !init: write RTC */
if (kern_offset != offset) {
kern_offset = offset;
mib[0] = CTL_MACHDEP;
@ -255,6 +255,7 @@ int main(argc, argv)
if (need_restore) {
need_restore = 0;
disrtcset = 0;
len = sizeof(disrtcset);
if (sysctl(mib, 2, NULL, NULL, &disrtcset, len) == -1) {
syslog(LOG_ERR, "sysctl(restore_disrtcset): %m");
return 1;