From 3aed84243a8188b54d19d7e9c26028796eb398b0 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Fri, 5 Apr 2019 12:54:56 +0200
Subject: _buildUnit(): avoid later division by zero

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14055
Credit to OSS Fuzz
---
 src/iso19111/io.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/iso19111/io.cpp')

diff --git a/src/iso19111/io.cpp b/src/iso19111/io.cpp
index 51fda1c1..360d55a2 100644
--- a/src/iso19111/io.cpp
+++ b/src/iso19111/io.cpp
@@ -6091,6 +6091,9 @@ static UnitOfMeasure _buildUnit(const LinearUnitDesc *unitsMatch) {
 
 static UnitOfMeasure _buildUnit(double to_meter_value) {
     // TODO: look-up in EPSG catalog
+    if (to_meter_value == 0) {
+        throw ParsingException("invalid unit value");
+    }
     return UnitOfMeasure("unknown", to_meter_value,
                          UnitOfMeasure::Type::LINEAR);
 }
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