Add psa_crypto_output_copy_free() implementation
Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 669087c..9330d40 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -5615,4 +5615,24 @@
return PSA_SUCCESS;
}
+psa_status_t psa_crypto_output_copy_free(psa_crypto_output_copy_t *output_copy)
+{
+ if (output_copy->buffer == NULL) {
+ output_copy->len = 0;
+ return PSA_SUCCESS;
+ }
+ if (output_copy->original == NULL) {
+ /* We have an internal copy but nothing to copy back to. */
+ return PSA_ERROR_CORRUPTION_DETECTED;
+ }
+
+ memcpy(output_copy->original, output_copy->buffer, output_copy->len);
+
+ mbedtls_free(output_copy->buffer);
+ output_copy->buffer = NULL;
+ output_copy->len = 0;
+
+ return PSA_SUCCESS;
+}
+
#endif /* MBEDTLS_PSA_CRYPTO_C */