forked from osmocom/wireshark
71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/* ipv4.h
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*
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* IPv4 address class. They understand how to take netmasks into consideration
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* during equivalence testing.
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*
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* Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __IPV4_H__
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#define __IPV4_H__
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#include <glib.h>
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#include "ws_symbol_export.h"
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typedef struct {
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guint32 addr; /* stored in host order */
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guint32 nmask; /* stored in host order */
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} ipv4_addr_and_mask;
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/* Allocate a new ipv4_addr_and_mask struct, initialize it,
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* and return pointer
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*/
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ipv4_addr_and_mask* ipv4_addr_and_mask_new(void);
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/* Frees an ipv4_addr_and_mask struct */
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void ipv4_addr_and_mask_free(ipv4_addr_and_mask *ipv4);
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void ipv4_addr_and_mask_set_host_order_addr(ipv4_addr_and_mask *ipv4, const guint32 new_addr);
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void ipv4_addr_and_mask_set_net_order_addr(ipv4_addr_and_mask *ipv4, const guint32 new_addr);
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void ipv4_addr_and_mask_set_netmask_bits(ipv4_addr_and_mask *ipv4, const guint new_nmask_bits);
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WS_DLL_PUBLIC
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guint32 ipv4_get_net_order_addr(ipv4_addr_and_mask *ipv4);
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guint32 ipv4_get_host_order_addr(ipv4_addr_and_mask *ipv4);
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/* Fills in a buffer with a dotted-decimal notation representation of an IPv4
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* address. */
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void ipv4_addr_and_mask_str_buf(const ipv4_addr_and_mask *ipv4, gchar *buf);
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/* Compares two ipv4_addr_and_masks, taking into account the less restrictive of the
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* two netmasks, applying that netmask to both addrs.
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*/
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gboolean ipv4_addr_and_mask_eq(const ipv4_addr_and_mask *a, const ipv4_addr_and_mask *b);
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gboolean ipv4_addr_and_mask_gt(const ipv4_addr_and_mask *a, const ipv4_addr_and_mask *b);
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gboolean ipv4_addr_and_mask_ge(const ipv4_addr_and_mask *a, const ipv4_addr_and_mask *b);
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gboolean ipv4_addr_and_mask_lt(const ipv4_addr_and_mask *a, const ipv4_addr_and_mask *b);
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gboolean ipv4_addr_and_mask_le(const ipv4_addr_and_mask *a, const ipv4_addr_and_mask *b);
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#define ipv4_addr_and_mask_ne(a,b) !ipv4_addr_and_mask_eq((a),(b))
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#endif
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