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ECC-1280: Check to avoid divide by zero

This commit is contained in:
Shahram Najm 2021-09-13 21:34:35 +01:00
parent 76d82b7c4b
commit d00c94e4ce
1 changed files with 10 additions and 5 deletions
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15
src/grib_iterator_class_space_view.c
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@ -254,17 +254,19 @@ static int init(grib_iterator* iter, grib_handle* h, grib_arguments* args)
else {
r_eq = r_pol = radius * 0.001; /*conv to km*/
}
if (nrInRadiusOfEarth == 0) {
grib_context_log(h->context, GRIB_LOG_ERROR, "Key %s must be greater than zero", sNrInRadiusOfEarth);
return GRIB_GEOCALCULUS_PROBLEM;
}
angular_size = 2.0 * asin(1.0 / nrInRadiusOfEarth);
height = nrInRadiusOfEarth * r_eq;
lap = latOfSubSatellitePointInDegrees;
lop = lonOfSubSatellitePointInDegrees;
/* lap *= 1e-6; // default scaling factor */
/* lop *= 1e-6; */
if (lap != 0.0)
return GRIB_NOT_IMPLEMENTED;
/*lap *= DEG2RAD;*/
/*lop *= DEG2RAD;*/
/*orient_angle = orientationInDegrees;*/
/* if (orient_angle != 0.0) return GRIB_NOT_IMPLEMENTED; */
@ -275,7 +277,10 @@ static int init(grib_iterator* iter, grib_handle* h, grib_arguments* args)
y0 = Yo;
/* adjustBadlyEncodedEcmwfGribs(h, &nx, &ny, &dx, &dy, &xp, &yp); */
if (dx == 0 || dy == 0) {
grib_context_log(h->context, GRIB_LOG_ERROR, "Keys %s and %s must be greater than zero", sDx, sDy);
return GRIB_GEOCALCULUS_PROBLEM;
}
rx = angular_size / dx;
ry = (r_pol / r_eq) * angular_size / dy;