Rename EXTRACT_ macros

Now all the macros have a name meaning a count in bytes.

With _S_: signed, _U_: unsigned

e.g.:
EXTRACT_BE_32BITS -> EXTRACT_BE_U_4
EXTRACT_LE_32BITS -> EXTRACT_LE_U_4
...
EXTRACT_BE_INT32 -> EXTRACT_BE_S_4

and have:
EXTRACT_8BITS -> EXTRACT_U_1
EXTRACT_INT8  -> EXTRACT_S_1

1 files changed, 4 insertions, 4 deletions

diff --git a/print-sl.c b/print-sl.c
index a4a05fb1..1e329cf4 100644
--- a/print-sl.c
+++ b/print-sl.c
@@ -199,7 +199,7 @@ print_sl_change(netdissect_options *ndo,
 	register u_int i;
 
 	if ((i = *cp++) == 0) {
-		i = EXTRACT_BE_16BITS(cp);
+		i = EXTRACT_BE_U_2(cp);
 		cp += 2;
 	}
 	ND_PRINT((ndo, " %s%d", str, i));
@@ -213,7 +213,7 @@ print_sl_winchange(netdissect_options *ndo,
 	register short i;
 
 	if ((i = *cp++) == 0) {
-		i = EXTRACT_BE_16BITS(cp);
+		i = EXTRACT_BE_U_2(cp);
 		cp += 2;
 	}
 	if (i >= 0)
@@ -231,10 +231,10 @@ compressed_sl_print(netdissect_options *ndo,
 	register const u_char *cp = chdr;
 	register u_int flags, hlen;
 
-	flags = EXTRACT_8BITS(cp);
+	flags = EXTRACT_U_1(cp);
 	cp++;
 	if (flags & NEW_C) {
-		lastconn = EXTRACT_8BITS(cp);
+		lastconn = EXTRACT_U_1(cp);
 		cp++;
 		ND_PRINT((ndo, "ctcp %d", lastconn));
 	} else