X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/ac910c086ec393a8c320a82d0edb5ea412175b62..77493011a78df00e5ba285d56fa97c816c088ceb:/print-ascii.c

diff --git a/print-ascii.c b/print-ascii.c
index c672ca8c..2f05c387 100644
--- a/print-ascii.c
+++ b/print-ascii.c
@@ -40,14 +40,11 @@
 #include "config.h"
 #endif
 
-#ifndef lint
-static const char rcsid[] _U_ =
-     "@(#) $Header: /tcpdump/master/tcpdump/print-ascii.c,v 1.17 2005-07-06 20:53:32 guy Exp $";
-#endif
 #include <tcpdump-stdinc.h>
 #include <stdio.h>
 
 #include "netdissect.h"
+#include "interface.h"
 
 #define ASCII_LINELENGTH 300
 #define HEXDUMP_BYTES_PER_LINE 16
@@ -65,16 +62,30 @@ ascii_print(register const u_char *cp, register u_int length)
 	while (length > 0) {
 		s = *cp++;
 		length--;
-		if (!isgraph(s) &&
-		    (s != '\t' && s != ' ' && s != '\n' && s != '\r'))
-			putchar('.');
-		else
-			putchar(s);
+		if (s == '\r') {
+			/*
+			 * Don't print CRs at the end of the line; they
+			 * don't belong at the ends of lines on UN*X,
+			 * and the standard I/O library will give us one
+			 * on Windows so we don't need to print one
+			 * ourselves.
+			 *
+			 * In the middle of a line, just print a '.'.
+			 */
+			if (length > 1 && *cp != '\n')
+				putchar('.');
+		} else {
+			if (!ND_ISGRAPH(s) &&
+			    (s != '\t' && s != ' ' && s != '\n'))
+				putchar('.');
+			else
+				putchar(s);
+		}
 	}
 }
 
 void
-hex_and_ascii_print_with_offset(register const char *ident,
+hex_and_ascii_print_with_offset(netdissect_options *ndo, register const char *ident,
     register const u_char *cp, register u_int length, register u_int oset)
 {
 	register u_int i;
@@ -92,14 +103,14 @@ hex_and_ascii_print_with_offset(register const char *ident,
 		(void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
 		    " %02x%02x", s1, s2);
 		hsp += HEXDUMP_HEXSTUFF_PER_SHORT;
-		*(asp++) = (isgraph(s1) ? s1 : '.');
-		*(asp++) = (isgraph(s2) ? s2 : '.');
+		*(asp++) = (ND_ISGRAPH(s1) ? s1 : '.');
+		*(asp++) = (ND_ISGRAPH(s2) ? s2 : '.');
 		i++;
 		if (i >= HEXDUMP_SHORTS_PER_LINE) {
 			*hsp = *asp = '\0';
-			(void)printf("%s0x%04x: %-*s  %s",
+			ND_PRINT((ndo, "%s0x%04x: %-*s  %s",
 			    ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
-			    hexstuff, asciistuff);
+			    hexstuff, asciistuff));
 			i = 0; hsp = hexstuff; asp = asciistuff;
 			oset += HEXDUMP_BYTES_PER_LINE;
 		}
@@ -109,22 +120,22 @@ hex_and_ascii_print_with_offset(register const char *ident,
 		(void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
 		    " %02x", s1);
 		hsp += 3;
-		*(asp++) = (isgraph(s1) ? s1 : '.');
+		*(asp++) = (ND_ISGRAPH(s1) ? s1 : '.');
 		++i;
 	}
 	if (i > 0) {
 		*hsp = *asp = '\0';
-		(void)printf("%s0x%04x: %-*s  %s",
+		ND_PRINT((ndo, "%s0x%04x: %-*s  %s",
 		     ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
-		     hexstuff, asciistuff);
+		     hexstuff, asciistuff));
 	}
 }
 
 void
-hex_and_ascii_print(register const char *ident, register const u_char *cp,
-    register u_int length)
+hex_and_ascii_print(netdissect_options *ndo, register const char *ident,
+    register const u_char *cp, register u_int length)
 {
-	hex_and_ascii_print_with_offset(ident, cp, length, 0);
+	hex_and_ascii_print_with_offset(ndo, ident, cp, length, 0);
 }
 
 /*
@@ -142,16 +153,16 @@ hex_print_with_offset(netdissect_options *ndo,
 	i = 0;
 	while (--nshorts >= 0) {
 		if ((i++ % 8) == 0) {
-                  (void)ND_PRINT((ndo,"%s0x%04x: ", ident, oset));
-                  oset += HEXDUMP_BYTES_PER_LINE;
+			ND_PRINT((ndo,"%s0x%04x: ", ident, oset));
+			oset += HEXDUMP_BYTES_PER_LINE;
 		}
 		s = *cp++;
-		(void)ND_PRINT((ndo," %02x%02x", s, *cp++));
+		ND_PRINT((ndo," %02x%02x", s, *cp++));
 	}
 	if (length & 1) {
 		if ((i % 8) == 0)
-                  (void)ND_PRINT((ndo,"%s0x%04x: ", ident, oset));
-		(void)ND_PRINT((ndo," %02x", *cp));
+			ND_PRINT((ndo,"%s0x%04x: ", ident, oset));
+		ND_PRINT((ndo," %02x", *cp));
 	}
 }