librpc:ndr: Add NDR_ZERO_STRUCT(P) macros

[kai/samba-autobuild/.git] / librpc / ndr / libndr.h

diff --git a/librpc/ndr/libndr.h b/librpc/ndr/libndr.h
index c31496fe1dcab50021f5a1c2142ad51fab4c1055..9c403319b6ed87f6db28d596914a5947534627ac 100644 (file)
--- a/librpc/ndr/libndr.h
+++ b/librpc/ndr/libndr.h
@@ -411,6 +411,13 @@ enum ndr_compression_alg {
        if (unlikely(!(s))) return ndr_push_error(ndr, NDR_ERR_ALLOC, "push alloc %s failed: %s\n", # s, __location__); \
 } while (0)
 
+#define NDR_ZERO_STRUCT(x) ndr_zero_memory(&(x), sizeof(x))
+#define NDR_ZERO_STRUCTP(x) do { \
+       if ((x) != NULL) { \
+               ndr_zero_memory((x), sizeof(*(x))); \
+       } \
+} while(0)
+
 /* these are used when generic fn pointers are needed for ndr push/pull fns */
 typedef enum ndr_err_code (*ndr_push_flags_fn_t)(struct ndr_push *, int ndr_flags, const void *);
 typedef enum ndr_err_code (*ndr_pull_flags_fn_t)(struct ndr_pull *, int ndr_flags, void *);
@@ -493,6 +500,7 @@ void ndr_print_dom_sid0(struct ndr_print *ndr, const char *name, const struct do
 size_t ndr_size_dom_sid0(const struct dom_sid *sid, int flags);
 void ndr_print_GUID(struct ndr_print *ndr, const char *name, const struct GUID *guid);
 void ndr_print_sockaddr_storage(struct ndr_print *ndr, const char *name, const struct sockaddr_storage *ss);
+void ndr_zero_memory(void *ptr, size_t len);
 bool ndr_syntax_id_equal(const struct ndr_syntax_id *i1, const struct ndr_syntax_id *i2);
 char *ndr_syntax_id_to_string(TALLOC_CTX *mem_ctx, const struct ndr_syntax_id *id);
 bool ndr_syntax_id_from_string(const char *s, struct ndr_syntax_id *id);