ncp: add a comment about possibly null-truncated strings.

In File Search Continue requests, the path is a single byte giving the
string length, followed by that many bytes containing the string value.

However, in at least some File Search Continue requests, the string
length value is longer than the string, and there's a NUL, followed by
other non-zero cruft, in the string.

1 files changed, 7 insertions, 0 deletions

diff --git a/tools/ncp2222.py b/tools/ncp2222.py
index 7acddac4ef..898375dbbf 100755
--- a/tools/ncp2222.py
+++ b/tools/ncp2222.py
@@ -3351,6 +3351,13 @@ PathCookieFlags                 = val_string16("path_cookie_flags", "Path Cookie
         [ 0x0001, "Last component is a File Name" ],
 ])
 PathCount                       = uint8("path_count", "Path Count")
+#
+# XXX - in at least some File Search Continue requests, the string
+# length value is longer than the string, and there's a NUL, followed
+# by other non-zero cruft, in the string.  Should this be an
+# "nstringz8", with FT_UINT_STRINGZPAD added to support it?  And
+# does that apply to any other values?
+#
 Path                            = nstring8("path", "Path")
 Path16              = nstring16("path16", "Path")
 PathAndName                     = stringz("path_and_name", "Path and Name")