STA_PPSSIGNAL
#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
ntpdata->time_status |= STA_PPSSIGNAL;
if (ntpdata->time_status & STA_PPSTIME && ntpdata->time_status & STA_PPSSIGNAL)
ntpdata->time_status &= ~(STA_PPSSIGNAL | STA_PPSJITTER |
&& !(status & STA_PPSSIGNAL))