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Add #defines for class values, and use them rather than using the 

numeric values.  (Also, just for laughs and for completeness, turn the
CS class into "csnet", even though it's obsolete and supposedly used
only in some examples in obsolete RFCs.)

svn path=/trunk/; revision=2240
This commit is contained in:
Guy Harris 2000-08-09 07:15:19 +00:00
parent 42f7676996
commit 86852f4fe8
1 changed files with 14 additions and 5 deletions
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19
packet-dns.c
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@ -1,7 +1,7 @@
/* packet-dns.c
* Routines for DNS packet disassembly
*
* $Id: packet-dns.c,v 1.50 2000/08/08 16:21:23 deniel Exp $
* $Id: packet-dns.c,v 1.51 2000/08/09 07:15:19 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
@ -116,6 +116,12 @@ static gint ett_t_key_flags = -1;
#define T_WINS 65281 /* Microsoft's WINS RR */
#define T_WINS_R 65282 /* Microsoft's WINS-R RR */
/* Class values */
#define C_IN 1 /* the Internet */
#define C_CS 2 /* CSNET (obsolete) */
#define C_CH 3 /* CHAOS */
#define C_HS 4 /* Hesiod */
/* Bit fields in the flags */
#define F_RESPONSE (1<<15) /* packet is response */
#define F_OPCODE (0xF<<11) /* query opcode */
@ -330,13 +336,16 @@ dns_class_name(int class)
char *class_name;
switch (class) {
case 1:
case C_IN:
class_name = "inet";
break;
case 3:
case C_CS:
class_name = "csnet";
break;
case C_CH:
class_name = "chaos";
break;
case 4:
case C_HS:
class_name = "hesiod";
break;
default:
@ -737,7 +746,7 @@ dissect_dns_answer(const u_char *pd, int offset, int dns_data_offset,
proto_tree_add_text(rr_tree, NullTVB, cur_offset, 4, "Addr: %s",
ip_to_str((guint8 *)dptr));
}
if (class == 1) {
if (class == C_IN) {
guint32 addr;
memcpy(&addr, dptr, sizeof(addr));
add_host_name(addr, name);