Catch exceptions in OIDS::lookup and rethrow a Lookup_Error. Attempting to

encode a public key that did not have an OID for its key format resulted
in a very confusing exception (thrown from char2digit) that was completely
meaningless to anyone.

1 files changed, 10 insertions, 2 deletions

diff --git a/src/oids.cpp b/src/oids.cpp
index ee0cc6c0b..141b55707 100644
--- a/src/oids.cpp
+++ b/src/oids.cpp
@@ -40,9 +40,17 @@ std::string lookup(const OID& oid)
 OID lookup(const std::string& name)
    {
    std::string value = global_config().get("str2oid", name);
-   if(value == "")
+   if(value != "")
+      return OID(value);
+
+   try
+      {
       return OID(name);
-   return OID(value);
+      }
+   catch(Exception)
+      {
+      throw Lookup_Error("No object identifier found for " + name);
+      }
    }
 
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