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| author | Gary E. Miller <gem@rellim.com> | 2019-03-13 18:32:16 -0700 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2019-03-13 18:32:16 -0700 |
| commit | 9b50a4af1c67ac4c49d606a165d5ab79045fc31c (patch) | |
| tree | b99e323cad7fb95f9c6206d493f514f7f64173d5 /pseudonmea.c | |
| parent | b130dcada481b265325587f7b835c96abf682ae4 (diff) | |
| download | gpsd-9b50a4af1c67ac4c49d606a165d5ab79045fc31c.tar.gz | |
pseudonmea: Fix $GPGGA to not output zero times.
No regtression tests changed. Only called from net_ntrip...
Diffstat (limited to 'pseudonmea.c')
| -rw-r--r-- | pseudonmea.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/pseudonmea.c b/pseudonmea.c index 3aea62c6..9e9c0003 100644 --- a/pseudonmea.c +++ b/pseudonmea.c @@ -29,23 +29,32 @@ static double degtodm(double angle) return floor(angle) * 100 + fraction * 60; } +/* Dump a $GPGGA. + * looks like this is only called from net_ntrip.c + */ void gpsd_position_fix_dump(struct gps_device_t *session, char bufp[], size_t len) { - struct tm tm; - double integral; - time_t integral_time; - double fractional = modf(session->gpsdata.fix.time, &integral); - integral_time = (time_t) integral; + char time_str[20]; + + if (0 != isfinite(session->gpsdata.fix.time)) { + struct tm tm; + double integral; + double fractional = modf(session->gpsdata.fix.time, &integral); + time_t integral_time = (time_t)integral; - (void)gmtime_r(&integral_time, &tm); + (void)gmtime_r(&integral_time, &tm); + (void)snprintf(time_str, sizeof(time_str), + "%02d%02d%05.2f", + tm.tm_hour, tm.tm_min, tm.tm_sec + fractional); + } else { + time_str[0] = '\0'; + } if (session->gpsdata.fix.mode > MODE_NO_FIX) { (void)snprintf(bufp, len, - "$GPGGA,%02d%02d%05.2f,%09.4f,%c,%010.4f,%c,%d,%02d,", - tm.tm_hour, - tm.tm_min, - tm.tm_sec + fractional, + "$GPGGA,%s,%09.4f,%c,%010.4f,%c,%d,%02d,", + time_str, degtodm(fabs(session->gpsdata.fix.latitude)), ((session->gpsdata.fix.latitude > 0) ? 'N' : 'S'), degtodm(fabs(session->gpsdata.fix.longitude)), |