diff options
| -rw-r--r-- | source4/librpc/ndr/libndr.h | 3 | ||||
| -rw-r--r-- | source4/librpc/ndr/ndr.c | 10 |
2 files changed, 11 insertions, 2 deletions
diff --git a/source4/librpc/ndr/libndr.h b/source4/librpc/ndr/libndr.h index e2ac4279f1..19d4356681 100644 --- a/source4/librpc/ndr/libndr.h +++ b/source4/librpc/ndr/libndr.h @@ -132,6 +132,9 @@ struct ndr_print { /* set if an object uuid will be present */ #define LIBNDR_FLAG_OBJECT_PRESENT (1<<30) +/* set to avoid recursion in ndr_size_*() calculation */ +#define LIBNDR_FLAG_NO_NDR_SIZE (1<<31) + /* useful macro for debugging */ #define NDR_PRINT_DEBUG(type, p) ndr_print_debug((ndr_print_fn_t)ndr_print_ ##type, #p, p) #define NDR_PRINT_UNION_DEBUG(type, level, p) ndr_print_union_debug((ndr_print_union_fn_t)ndr_print_ ##type, #p, level, p) diff --git a/source4/librpc/ndr/ndr.c b/source4/librpc/ndr/ndr.c index 2e350aa0da..f3394d1e44 100644 --- a/source4/librpc/ndr/ndr.c +++ b/source4/librpc/ndr/ndr.c @@ -789,9 +789,12 @@ size_t ndr_size_struct(const void *p, int flags, ndr_push_flags_fn_t push) NTSTATUS status; size_t ret; + /* avoid recursion */ + if (flags & LIBNDR_FLAG_NO_NDR_SIZE) return 0; + ndr = ndr_push_init_ctx(NULL); if (!ndr) return 0; - ndr->flags |= flags; + ndr->flags |= flags | LIBNDR_FLAG_NO_NDR_SIZE; status = push(ndr, NDR_SCALARS|NDR_BUFFERS, discard_const(p)); if (!NT_STATUS_IS_OK(status)) { return 0; @@ -810,9 +813,12 @@ size_t ndr_size_union(const void *p, int flags, uint32_t level, ndr_push_union_f NTSTATUS status; size_t ret; + /* avoid recursion */ + if (flags & LIBNDR_FLAG_NO_NDR_SIZE) return 0; + ndr = ndr_push_init_ctx(NULL); if (!ndr) return 0; - ndr->flags |= flags; + ndr->flags |= flags | LIBNDR_FLAG_NO_NDR_SIZE; status = push(ndr, NDR_SCALARS|NDR_BUFFERS, level, discard_const(p)); if (!NT_STATUS_IS_OK(status)) { return 0; |