X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Fc_types%2Fmod.rs;h=98e964ff6efb5b7d20ec7fe419103ee25f98c6f0;hb=ce0ec2494f33662d8cfb14efc00cb49d22190e2c;hp=3d6f08accc3926d3153ecd45aab38498ce0c5f0e;hpb=c358de7979526421ebb18df376ee323a5dd6d96b;p=ldk-c-bindings

diff --git a/lightning-c-bindings/src/c_types/mod.rs b/lightning-c-bindings/src/c_types/mod.rs
index 3d6f08a..98e964f 100644
--- a/lightning-c-bindings/src/c_types/mod.rs
+++ b/lightning-c-bindings/src/c_types/mod.rs
@@ -14,7 +14,7 @@ use bitcoin::secp256k1::recovery::RecoverableSignature as SecpRecoverableSignatu
 use bitcoin::bech32;
 
 use std::convert::TryInto; // Bindings need at least rustc 1.34
-
+use core::ffi::c_void;
 use std::io::{Cursor, Read}; // TODO: We should use core2 here when we support no_std
 
 #[repr(C)]
@@ -618,6 +618,18 @@ pub(crate) mod ObjOps {
 	}
 }
 
+#[cfg(test_mod_pointers)]
+#[no_mangle]
+/// This function exists for memory safety testing purposes. It should never be used in production
+/// code
+pub extern "C" fn __unmangle_inner_ptr(ptr: *const c_void) -> *const c_void {
+	if ptr as usize == 1 {
+		core::ptr::null()
+	} else {
+		unsafe { ptr.cast::<u8>().sub(4096).cast::<c_void>() }
+	}
+}
+
 pub(crate) struct SmartPtr<T> {
 	ptr: *mut T,
 }