Only print FFI exceptions to stdout if an env var is set

So debugging is possible but default is silent.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lib/ffi/ffi.cpp b/src/lib/ffi/ffi.cpp
index 74c576631..48b9cf803 100644
--- a/src/lib/ffi/ffi.cpp
+++ b/src/lib/ffi/ffi.cpp
@@ -16,7 +16,10 @@ namespace Botan_FFI {
 
 int ffi_error_exception_thrown(const char* func_name, const char* exn, int rc)
    {
-   fprintf(stderr, "in %s exception '%s' returning %d\n", func_name, exn, rc);
+   if(std::getenv("BOTAN_FFI_PRINT_EXCEPTIONS"))
+      {
+      std::fprintf(stderr, "in %s exception '%s' returning %d\n", func_name, exn, rc);
+      }
    return rc;
    }