Move cli_trans_oob to lib/util.c

Rename it to trans_oob, it will be used in the server routines.

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.