Add explicit return to FFI botan_mp_to_str.

This way we know if the buffer is insufficient.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/ffi/ffi.cpp b/src/lib/ffi/ffi.cpp
index e15594ca6..42b01be62 100644
--- a/src/lib/ffi/ffi.cpp
+++ b/src/lib/ffi/ffi.cpp
@@ -553,7 +553,7 @@ int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t*
 
       std::vector<uint8_t> hex = Botan::BigInt::encode(bn, base);
       hex.push_back(0); // null terminator
-      write_str_output(out, out_len, hex);
+      return write_str_output(out, out_len, hex);
       });
    }