Avoid throwing within the FFI layer

No reason given we know the message is going to be thrown away.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/lib/ffi/ffi_pkey_algs.cpp b/src/lib/ffi/ffi_pkey_algs.cpp
index 622da7a14..7987639c8 100644
--- a/src/lib/ffi/ffi_pkey_algs.cpp
+++ b/src/lib/ffi/ffi_pkey_algs.cpp
@@ -117,7 +117,7 @@ Botan::BigInt pubkey_get_field(const Botan::Public_Key& key,
       else if(field == "e")
          return rsa->get_e();
       else
-         throw Botan::Exception("Field not supported");
+         return BOTAN_FFI_ERROR_BAD_PARAMETER;
       }
 #endif
 
@@ -134,7 +134,7 @@ Botan::BigInt pubkey_get_field(const Botan::Public_Key& key,
       else if(field == "y")
          return dl->get_y();
       else
-         throw Botan::Exception("Field not supported");
+         return BOTAN_FFI_ERROR_BAD_PARAMETER;
       }
 #endif
 
@@ -160,12 +160,12 @@ Botan::BigInt pubkey_get_field(const Botan::Public_Key& key,
       else if(field == "order")
          return ecc->domain().get_order();
       else
-         throw Botan::Exception("Field not supported");
+         return BOTAN_FFI_ERROR_BAD_PARAMETER;
       }
 #endif
 
    // Some other algorithm type not supported by this function
-   throw Botan::Exception("Unsupported algorithm type for botan_pubkey_get_field");
+   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
    }
 
 Botan::BigInt privkey_get_field(const Botan::Private_Key& key,
@@ -216,7 +216,7 @@ Botan::BigInt privkey_get_field(const Botan::Private_Key& key,
 #endif
 
    // Some other algorithm type not supported by this function
-   throw Botan::Exception("Unsupported algorithm type for botan_privkey_get_field");
+   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
    }
 
 }