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| author | Stefan Metzmacher <metze@samba.org> | 2005-03-11 10:09:16 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 13:11:00 -0500 |
| commit | 1ecdd798471a9c40eec6a4eaf95af9d5bdc1a601 (patch) | |
| tree | cf561a125471baf924a69b172489f03e092e0f6d | |
| parent | f52643c23c50e68c149b5e6726ca1c10c9e3fd27 (diff) | |
| download | samba-1ecdd798471a9c40eec6a4eaf95af9d5bdc1a601.tar.gz samba-1ecdd798471a9c40eec6a4eaf95af9d5bdc1a601.tar.bz2 samba-1ecdd798471a9c40eec6a4eaf95af9d5bdc1a601.zip | |
r5736: fix to avoid endless recursion in ndr_size_*() calculation
metze
(This used to be commit eaac0f214703f91f186eb54f97e15e56461762bd)
| -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; |