I was looking at some SIP traffic (urgh) with tcpdump -A | less and
wondered why ^K and ^L were considered printable characters. Let's
tighten this a bit. Equivalent to what tcpdump.org has.
OK?
Index: tcpdump.c
===================================================================
RCS file: /cvs/src/usr.sbin/tcpdump/tcpdump.c,v
retrieving revision 1.70
diff -u -p -r1.70 tcpdump.c
--- tcpdump.c 18 Apr 2015 18:28:38 -0000 1.70
+++ tcpdump.c 11 Jul 2015 20:35:11 -0000
@@ -603,8 +603,10 @@ default_print_ascii(const u_char *cp, un
printf("\n");
for (i = 0; i < length; i++) {
c = cp[i];
- c = isprint(c) || isspace(c) ? c : '.';
- putchar(c);
+ if (isprint(c) || c == '\t' || c == '\n' || c == '\r')
+ putchar(c);
+ else
+ putchar('.');
}
}
--
Christian "naddy" Weisgerber [email protected]
