X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c0af6af3011d4c55bdadf3dd76cd5fc1115c50d0..e6eab7bccfbf8fe9c386e16a9c5441e7a57066ae:/print-ascii.c

diff --git a/print-ascii.c b/print-ascii.c
index df3f36a1..63f15f0f 100644
--- a/print-ascii.c
+++ b/print-ascii.c
@@ -65,12 +65,12 @@ ascii_print(netdissect_options *ndo,
 	u_char s;
 
 	ndo->ndo_protocol = "ascii";
-	caplength = (ndo->ndo_snapend > cp) ? ndo->ndo_snapend - cp : 0;
+	caplength = (ndo->ndo_snapend > cp) ? ND_BYTES_AVAILABLE_AFTER(cp) : 0;
 	if (length > caplength)
 		length = caplength;
 	ND_PRINT("\n");
 	while (length > 0) {
-		s = EXTRACT_U_1(cp);
+		s = GET_U_1(cp);
 		cp++;
 		length--;
 		if (s == '\r') {
@@ -83,7 +83,7 @@ ascii_print(netdissect_options *ndo,
 			 *
 			 * In the middle of a line, just print a '.'.
 			 */
-			if (length > 1 && EXTRACT_U_1(cp) != '\n')
+			if (length > 1 && GET_U_1(cp) != '\n')
 				ND_PRINT(".");
 		} else {
 			if (!ND_ISGRAPH(s) &&
@@ -106,16 +106,16 @@ hex_and_ascii_print_with_offset(netdissect_options *ndo, const char *ident,
 	char hexstuff[HEXDUMP_SHORTS_PER_LINE*HEXDUMP_HEXSTUFF_PER_SHORT+1], *hsp;
 	char asciistuff[ASCII_LINELENGTH+1], *asp;
 
-	caplength = (ndo->ndo_snapend > cp) ? ndo->ndo_snapend - cp : 0;
+	caplength = (ndo->ndo_snapend > cp) ? ND_BYTES_AVAILABLE_AFTER(cp) : 0;
 	if (length > caplength)
 		length = caplength;
 	nshorts = length / sizeof(u_short);
 	i = 0;
 	hsp = hexstuff; asp = asciistuff;
 	while (nshorts != 0) {
-		s1 = EXTRACT_U_1(cp);
+		s1 = GET_U_1(cp);
 		cp++;
-		s2 = EXTRACT_U_1(cp);
+		s2 = GET_U_1(cp);
 		cp++;
 		(void)nd_snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
 		    " %02x%02x", s1, s2);
@@ -134,7 +134,7 @@ hex_and_ascii_print_with_offset(netdissect_options *ndo, const char *ident,
 		nshorts--;
 	}
 	if (length & 1) {
-		s1 = EXTRACT_U_1(cp);
+		s1 = GET_U_1(cp);
 		cp++;
 		(void)nd_snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
 		    " %02x", s1);
@@ -169,7 +169,7 @@ hex_print_with_offset(netdissect_options *ndo,
 	u_int i, s;
 	u_int nshorts;
 
-	caplength = (ndo->ndo_snapend > cp) ? ndo->ndo_snapend - cp : 0;
+	caplength = (ndo->ndo_snapend > cp) ? ND_BYTES_AVAILABLE_AFTER(cp) : 0;
 	if (length > caplength)
 		length = caplength;
 	nshorts = length / sizeof(u_short);
@@ -179,16 +179,16 @@ hex_print_with_offset(netdissect_options *ndo,
 			ND_PRINT("%s0x%04x: ", ident, oset);
 			oset += HEXDUMP_BYTES_PER_LINE;
 		}
-		s = EXTRACT_U_1(cp);
+		s = GET_U_1(cp);
 		cp++;
-		ND_PRINT(" %02x%02x", s, EXTRACT_U_1(cp));
+		ND_PRINT(" %02x%02x", s, GET_U_1(cp));
 		cp++;
 		nshorts--;
 	}
 	if (length & 1) {
 		if ((i % 8) == 0)
 			ND_PRINT("%s0x%04x: ", ident, oset);
-		ND_PRINT(" %02x", EXTRACT_U_1(cp));
+		ND_PRINT(" %02x", GET_U_1(cp));
 	}
 }