From 02a9f6991b78fa2ddcdc35367ae0fc839dbdc96a Mon Sep 17 00:00:00 2001
From: Pedro Maciel <Pedro.Maciel@ecmwf.int>
Date: Sun, 28 Apr 2024 18:06:09 +0000
Subject: [PATCH] EASE polar grids

---
 etc/mir/netcdf.yaml       | 2 ++
 src/mir/netcdf/Endowed.cc | 8 ++++----
 src/mir/netcdf/Type.cc    | 3 +++
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/etc/mir/netcdf.yaml b/etc/mir/netcdf.yaml
index 2fffada7a..295fe855f 100644
--- a/etc/mir/netcdf.yaml
+++ b/etc/mir/netcdf.yaml
@@ -1,5 +1,7 @@
 ---
 # yamllint disable rule:line-length
+<UNDEFINED>:
+  paramId: 151
 
 air_pressure_at_sea_level:
   paramId: 151
diff --git a/src/mir/netcdf/Endowed.cc b/src/mir/netcdf/Endowed.cc
index b8b22aced..1b35eef80 100644
--- a/src/mir/netcdf/Endowed.cc
+++ b/src/mir/netcdf/Endowed.cc
@@ -60,10 +60,10 @@ void Endowed::getAttributes(int nc, int i, int nattr) {
         NC_CALL(nc_inq_attname(nc, i, j, name), path());
         NC_CALL(nc_inq_att(nc, i, name, &type, &len), path());
 
-        Type& kind       = Type::lookup(type);
-        Value* attribute = kind.attributeValue(nc, i, name, len, path());
-
-        add(new InputAttribute(*this, name, attribute));
+        Type& kind = Type::lookup(type);
+        if (Value* attribute = kind.attributeValue(nc, i, name, len, path()); attribute != nullptr) {
+            add(new InputAttribute(*this, name, attribute));
+        }
     }
 }
 
diff --git a/src/mir/netcdf/Type.cc b/src/mir/netcdf/Type.cc
index 5006232da..bd10e2da1 100644
--- a/src/mir/netcdf/Type.cc
+++ b/src/mir/netcdf/Type.cc
@@ -375,6 +375,9 @@ Value* TypeT<unsigned char>::attributeValue(int nc, int id, const char* name, si
 
 template <>
 Value* TypeT<short>::attributeValue(int nc, int id, const char* name, size_t len, const std::string& path) {
+    if (len != 1) {
+        return nullptr;
+    }
     short value;
     ASSERT(len == 1);
     NC_CALL(nc_get_att_short(nc, id, name, &value), path);