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| author | Even Rouault <even.rouault@spatialys.com> | 2019-03-21 09:54:04 +0100 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2019-03-21 12:49:31 +0100 |
| commit | ab19f0d7aec223b89537d07d5f5f3f2e1f5db822 (patch) | |
| tree | d73eba3ecb0347d7131b25527aa496351c8434a1 /src | |
| parent | 5d74522573291a8af698acf3102a662eb3a675eb (diff) | |
| download | PROJ-ab19f0d7aec223b89537d07d5f5f3f2e1f5db822.tar.gz PROJ-ab19f0d7aec223b89537d07d5f5f3f2e1f5db822.zip | |
aea: avoid division by zero
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13827
Credit to OSS Fuzz
Diffstat (limited to 'src')
| -rw-r--r-- | src/projections/aea.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/projections/aea.cpp b/src/projections/aea.cpp index f457e836..8a80c49c 100644 --- a/src/projections/aea.cpp +++ b/src/projections/aea.cpp @@ -180,6 +180,10 @@ static PJ *setup(PJ *P) { return destructor(P, 0); Q->n = (m1 * m1 - m2 * m2) / (ml2 - ml1); + if (Q->n == 0) { + // Not quite, but es is very close to 1... + return destructor(P, PJD_ERR_ECCENTRICITY_IS_ONE_OR_GREATER); + } } Q->ec = 1. - .5 * P->one_es * log((1. - P->e) / (1. + P->e)) / P->e; |