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authorVolker Lendecke <vl@samba.org>2008-11-08 16:48:20 +0100
committerVolker Lendecke <vl@samba.org>2008-11-28 08:24:37 +0100
commit9a3be6f0f8e120797a02fa1be60b51812cfd86f5 (patch)
treed2fa5cd4e774e56a9fc000b611e5fce06da60996 /source3/lib
parent738271fc2026b2911b7d20a73496989641714df3 (diff)
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Move cli_trans_oob to lib/util.c
Rename it to trans_oob, it will be used in the server routines.
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/util.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c
index 5007fb72ef..074b523ae0 100644
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -2879,6 +2879,25 @@ int this_is_smp(void)
}
/****************************************************************
+ Check if offset/length fit into bufsize. Should probably be
+ merged with is_offset_safe, but this would require a rewrite
+ of lanman.c. Later :-)
+****************************************************************/
+
+bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
+{
+ if ((offset + length < offset) || (offset + length < length)) {
+ /* wrap */
+ return true;
+ }
+ if ((offset > bufsize) || (offset + length > bufsize)) {
+ /* overflow */
+ return true;
+ }
+ return false;
+}
+
+/****************************************************************
Check if an offset into a buffer is safe.
If this returns True it's safe to indirect into the byte at
pointer ptr+off.