Update the ND_LCHECK*() macros to ND_ICHECK*() macros

ICHECK like Invalid-Check.
Reminder: If the checked expression is true an error message is printed
and a 'goto invalid' is executed.

This change adds the parameter 'operator'.

Before this change, '<' comparison was hard coded.
We can do now:
ND_ICHECK_U(length, <, HEADER_LEN);
ND_ICHECK_U(length, ==, 24);
ND_ICHECK_U(length, !=, 8);
ND_ICHECK_ZU(length, <, sizeof(struct my_struct));
ND_ICHECKMSG_U("message length", msg_tlen, <, 4);
...
(Any comparison operator)

Remark: The change of names from ND_LCHECK*() to ND_ICHECK*() is
because something else than a length(L) can be checked.

Moreover:
Place the 'message' parameter at the beginning of ND_ICHECKMSG_U()
and ND_ICHECKMSG_ZU() paramaters lists.

1 files changed, 1 insertions, 1 deletions

diff --git a/print-ether.c b/print-ether.c
index c47749c3..d20addbf 100644
--- a/print-ether.c
+++ b/print-ether.c
@@ -238,7 +238,7 @@ recurse:
 			 */
 			length_type = GET_BE_U_2(p);
 
-			ND_LCHECK_U(caplen, 2);
+			ND_ICHECK_U(caplen, <, 2);
 			length -= 2;
 			caplen -= 2;
 			p += 2;