Add freezero support

1 files changed, 13 insertions, 0 deletions

diff --git a/crypto/compat/freezero.c b/crypto/compat/freezero.c
new file mode 100644
index 0000000..8becc00
--- /dev/null
+++ b/crypto/compat/freezero.c
@@ -0,0 +1,13 @@
+#include <string.h>
+#include <stdlib.h>
+
+void
+freezero(void *ptr, size_t sz)
+{
+        /* This is legal. */
+        if (ptr == NULL)
+                return;
+
+        explicit_bzero(ptr, sz);
+        free(ptr);
+}