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Add option to read RTC LOCAL/UTC setting from hwclock's adjtime file

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This commit is contained in:
Miroslav Lichvar
2013-12-11 11:20:58 +01:00
parent 3c5cf81e32
commit e77b0070af
4 changed files with 71 additions and 0 deletions
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39
rtc_linux.c
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@@ -371,6 +371,43 @@ t_from_rtc(struct tm *stm) {
/* ================================================== */
static void
read_hwclock_file(const char *hwclock_file)
{
FILE *in;
char line[256];
int i;
if (!hwclock_file)
return;
in = fopen(hwclock_file, "r");
if (!in) {
LOG(LOGS_WARN, LOGF_RtcLinux, "Could not open hwclockfile %s",
hwclock_file);
return;
}
/* Read third line from the file. */
for (i = 0; i < 3; i++) {
if (!fgets(line, sizeof(line), in))
break;
}
fclose(in);
if (i == 3 && !strncmp(line, "LOCAL", 5)) {
rtc_on_utc = 0;
} else if (i == 3 && !strncmp(line, "UTC", 3)) {
rtc_on_utc = 1;
} else {
LOG(LOGS_WARN, LOGF_RtcLinux, "Could not read LOCAL/UTC setting from hwclockfile %s",
hwclock_file);
}
}
/* ================================================== */
static void
setup_config(void)
{
@@ -380,6 +417,8 @@ setup_config(void)
rtc_on_utc = 0;
}
read_hwclock_file(CNF_GetHwclockFile());
autotrim_threshold = CNF_GetRtcAutotrim();
}