616 lines
13 KiB
C
616 lines
13 KiB
C
/*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 2001 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <errno.h>
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#include "ftypes-int.h"
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#include <epan/resolv.h>
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/*
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* GLib 1.2[.x] doesn't define G_MAXUINT32; if it's not defined, we define
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* it as the maximum 32-bit unsigned number.
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*/
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#ifndef G_MAXUINT32
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#define G_MAXUINT32 ((guint32)0xFFFFFFFF)
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#endif
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static void
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int_fvalue_new(fvalue_t *fv)
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{
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fv->value.integer = 0;
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}
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static void
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set_integer(fvalue_t *fv, guint32 value)
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{
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fv->value.integer = value;
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}
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static guint32
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get_integer(fvalue_t *fv)
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{
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return fv->value.integer;
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}
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static gboolean
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val_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
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{
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unsigned long value;
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char *endptr;
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errno = 0;
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value = strtoul(s, &endptr, 0);
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if (errno == EINVAL || endptr == s || *endptr != '\0') {
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/* This isn't a valid number. */
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if (logfunc != NULL)
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logfunc("\"%s\" is not a valid number.", s);
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return FALSE;
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}
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if (errno == ERANGE) {
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if (logfunc != NULL) {
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if (value == ULONG_MAX) {
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logfunc("\"%s\" causes an integer overflow.",
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s);
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}
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else {
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/*
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* XXX - can "strtoul()" set errno to
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* ERANGE without returning ULONG_MAX?
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*/
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logfunc("\"%s\" is not an integer.", s);
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}
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}
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return FALSE;
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}
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if (value > G_MAXUINT32) {
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/*
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* Fits in an unsigned long, but not in a guint32
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* (an unsigned long might be 64 bits).
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*/
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if (logfunc != NULL)
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logfunc("\"%s\" causes an integer overflow.", s);
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return FALSE;
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}
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fv->value.integer = value;
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return TRUE;
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}
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static gboolean
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ipxnet_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
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{
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guint32 val;
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gboolean known;
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/*
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* Don't log a message if this fails; we'll try looking it
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* up as an IPX network name if it does, and if that fails,
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* we'll log a message.
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*/
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if (val_from_unparsed(fv, s, TRUE, NULL)) {
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return TRUE;
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}
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val = get_ipxnet_addr(s, &known);
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if (known) {
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fv->value.integer = val;
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return TRUE;
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}
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logfunc("\"%s\" is not a valid IPX network name or address.", s);
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return FALSE;
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}
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static gboolean
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cmp_eq(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer == b->value.integer;
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}
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static gboolean
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cmp_ne(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer != b->value.integer;
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}
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static gboolean
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u_cmp_gt(fvalue_t *a, fvalue_t *b)
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{
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return (int)a->value.integer > (int)b->value.integer;
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}
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static gboolean
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u_cmp_ge(fvalue_t *a, fvalue_t *b)
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{
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return (int)a->value.integer >= (int)b->value.integer;
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}
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static gboolean
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u_cmp_lt(fvalue_t *a, fvalue_t *b)
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{
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return (int)a->value.integer < (int)b->value.integer;
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}
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static gboolean
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u_cmp_le(fvalue_t *a, fvalue_t *b)
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{
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return (int)a->value.integer <= (int)b->value.integer;
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}
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static gboolean
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s_cmp_gt(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer > b->value.integer;
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}
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static gboolean
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s_cmp_ge(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer >= b->value.integer;
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}
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static gboolean
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s_cmp_lt(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer < b->value.integer;
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}
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static gboolean
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s_cmp_le(fvalue_t *a, fvalue_t *b)
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{
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return a->value.integer <= b->value.integer;
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}
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static gboolean
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cmp_bitwise_and(fvalue_t *a, fvalue_t *b)
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{
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return (a->value.integer & b->value.integer);
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}
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/* BOOLEAN-specific */
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static void
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boolean_fvalue_new(fvalue_t *fv)
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{
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fv->value.integer = TRUE;
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}
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static int
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boolean_repr_len(fvalue_t *fv _U_, ftrepr_t rtype _U_)
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{
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return 1;
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}
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static void
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boolean_to_repr(fvalue_t *fv, ftrepr_t rtype _U_, char *buf)
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{
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sprintf(buf, "%s", fv->value.integer ? "1" : "0");
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}
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/* Checks for equality with zero or non-zero */
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static gboolean
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bool_eq(fvalue_t *a, fvalue_t *b)
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{
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if (a->value.integer) {
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if (b->value.integer) {
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return TRUE;
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}
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else {
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return FALSE;
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}
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}
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else {
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if (b->value.integer) {
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return FALSE;
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}
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else {
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return TRUE;
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}
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}
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}
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/* Checks for inequality with zero or non-zero */
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static gboolean
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bool_ne(fvalue_t *a, fvalue_t *b)
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{
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return (!bool_eq(a,b));
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}
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void
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ftype_register_integers(void)
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{
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static ftype_t uint8_type = {
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"FT_UINT8", /* name */
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"unsigned, 1 byte", /* pretty name */
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1, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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u_cmp_gt,
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u_cmp_ge,
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u_cmp_lt,
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u_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t uint16_type = {
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"FT_UINT16", /* name */
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"unsigned, 2 bytes", /* pretty_name */
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2, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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u_cmp_gt,
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u_cmp_ge,
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u_cmp_lt,
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u_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t uint24_type = {
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"FT_UINT24", /* name */
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"unsigned, 3 bytes", /* pretty_name */
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3, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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u_cmp_gt,
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u_cmp_ge,
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u_cmp_lt,
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u_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t uint32_type = {
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"FT_UINT32", /* name */
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"unsigned, 4 bytes", /* pretty_name */
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4, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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u_cmp_gt,
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u_cmp_ge,
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u_cmp_lt,
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u_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t int8_type = {
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"FT_INT8", /* name */
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"signed, 1 byte", /* pretty_name */
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1, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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s_cmp_gt,
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s_cmp_ge,
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s_cmp_lt,
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s_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t int16_type = {
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"FT_INT16", /* name */
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"signed, 2 bytes", /* pretty_name */
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2, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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s_cmp_gt,
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s_cmp_ge,
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s_cmp_lt,
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s_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t int24_type = {
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"FT_INT24", /* name */
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"signed, 3 bytes", /* pretty_name */
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3, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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s_cmp_gt,
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s_cmp_ge,
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s_cmp_lt,
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s_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t int32_type = {
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"FT_INT32", /* name */
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"signed, 4 bytes", /* pretty_name */
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4, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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s_cmp_gt,
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s_cmp_ge,
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s_cmp_lt,
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s_cmp_le,
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cmp_bitwise_and,
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t boolean_type = {
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"FT_BOOLEAN", /* name */
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"Boolean", /* pretty_name */
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0, /* wire_size */
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boolean_fvalue_new, /* new_value */
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NULL, /* free_value */
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val_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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boolean_to_repr, /* val_to_string_repr */
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boolean_repr_len, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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bool_eq, /* cmp_eq */
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bool_ne, /* cmp_ne */
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NULL, /* cmp_gt */
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NULL, /* cmp_ge */
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NULL, /* cmp_lt */
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NULL, /* cmp_le */
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NULL, /* cmp_bitwise_and */
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NULL, /* cmp_contains */
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NULL, /* cmp_matches */
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NULL, /* len */
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NULL, /* slice */
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};
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static ftype_t ipxnet_type = {
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"FT_IPXNET", /* name */
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"IPX network number", /* pretty_name */
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4, /* wire_size */
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int_fvalue_new, /* new_value */
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NULL, /* free_value */
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ipxnet_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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NULL, /* val_to_string_repr */
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NULL, /* len_string_repr */
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NULL, /* set_value */
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set_integer, /* set_value_integer */
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NULL, /* set_value_floating */
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NULL, /* get_value */
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get_integer, /* get_value_integer */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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u_cmp_gt,
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u_cmp_ge,
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u_cmp_lt,
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u_cmp_le,
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cmp_bitwise_and,
|
|
NULL, /* cmp_contains */
|
|
NULL, /* cmp_matches */
|
|
|
|
NULL, /* len */
|
|
NULL, /* slice */
|
|
};
|
|
|
|
static ftype_t framenum_type = {
|
|
"FT_FRAMENUM", /* name */
|
|
"frame number", /* pretty_name */
|
|
4, /* wire_size */
|
|
int_fvalue_new, /* new_value */
|
|
NULL, /* free_value */
|
|
val_from_unparsed, /* val_from_unparsed */
|
|
NULL, /* val_from_string */
|
|
NULL, /* val_to_string_repr */
|
|
NULL, /* len_string_repr */
|
|
|
|
NULL, /* set_value */
|
|
set_integer, /* set_value_integer */
|
|
NULL, /* set_value_floating */
|
|
|
|
NULL, /* get_value */
|
|
get_integer, /* get_value_integer */
|
|
NULL, /* get_value_floating */
|
|
|
|
cmp_eq,
|
|
cmp_ne,
|
|
u_cmp_gt,
|
|
u_cmp_ge,
|
|
u_cmp_lt,
|
|
u_cmp_le,
|
|
NULL, /* cmp_bitwise_and */
|
|
NULL, /* cmp_contains */
|
|
NULL, /* cmp_matches */
|
|
|
|
NULL, /* len */
|
|
NULL, /* slice */
|
|
};
|
|
|
|
ftype_register(FT_UINT8, &uint8_type);
|
|
ftype_register(FT_UINT16, &uint16_type);
|
|
ftype_register(FT_UINT24, &uint24_type);
|
|
ftype_register(FT_UINT32, &uint32_type);
|
|
ftype_register(FT_INT8, &int8_type);
|
|
ftype_register(FT_INT16, &int16_type);
|
|
ftype_register(FT_INT24, &int24_type);
|
|
ftype_register(FT_INT32, &int32_type);
|
|
ftype_register(FT_BOOLEAN, &boolean_type);
|
|
ftype_register(FT_IPXNET, &ipxnet_type);
|
|
ftype_register(FT_FRAMENUM, &framenum_type);
|
|
}
|