[go: up one dir, main page]

File: network.cpp

package info (click to toggle)
libcommoncpp2 1.8.1-10
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 5,300 kB
  • sloc: cpp: 29,221; sh: 10,352; ansic: 1,134; makefile: 238; xml: 5
file content (200 lines) | stat: -rw-r--r-- 6,011 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
// Copyright (C) 2002-2010 Christian Prochnow <cproch@seculogix.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
//
// This exception applies only to the code released under the name GNU
// Common C++.  If you copy code from other releases into a copy of GNU
// Common C++, as the General Public License permits, the exception does
// not apply to the code that you add in this way.  To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
//
// If you write modifications of your own for GNU Common C++, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice.
//

#ifdef  __QNX__
#include <net/if.h>
#endif

#include <cc++/config.h>
#include <cc++/thread.h>
#include <cc++/address.h>
#include <cc++/socket.h>
#include <cc++/export.h>
#include <cc++/network.h>

#ifndef WIN32
#ifdef  HAVE_IOCTL_H
#include <ioctl.h>
#else
#include <sys/ioctl.h>
#endif
# ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
# endif
#ifdef  HAVE_NET_IF_H
#include <net/if.h>
#endif
#endif

#ifdef  CCXX_NAMESPACES
namespace ost {
#endif

#if defined(HAVE_NET_IF_H) || defined(WIN32)
#if !defined(_MSC_VER) || _MSC_VER >= 1300

using namespace std;

NetworkDeviceInfo::NetworkDeviceInfo(const String& name,
                     const IPV4Host& addr,
                     const IPV4Broadcast& broadcast,
                     const IPV4Mask& netmask, int mtu)
    : _name(name), _addr(addr), _broadcast(broadcast), _netmask(netmask),
      _mtu(mtu)
{}

NetworkDeviceInfo::NetworkDeviceInfo(const NetworkDeviceInfo& ndi)
    : _name(ndi._name), _addr(ndi._addr), _broadcast(ndi._broadcast),
      _netmask(ndi._netmask), _mtu(ndi._mtu)
{}

NetworkDeviceInfo::~NetworkDeviceInfo()
{}

bool enumNetworkDevices(vector<NetworkDeviceInfo>& devs)
{
    devs.clear();

#ifndef WIN32
    char buffer[8192];
    struct ifconf ifc;

    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if(fd == -1)
        return false;

    ifc.ifc_len = sizeof(buffer);
    ifc.ifc_buf = buffer;

    if(ioctl(fd, SIOCGIFCONF, &ifc) == -1)
        return false;

    IPV4Host addr;
    IPV4Broadcast brdaddr;
    IPV4Mask maskaddr("255.255.255.255");
    int mtu;

    int count = ifc.ifc_len / sizeof(ifreq);
    for(int i = 0; i < count; ++i) {
        if(ifc.ifc_req[i].ifr_addr.sa_family != AF_INET)
            continue;

        addr = ((sockaddr_in&)ifc.ifc_req[i].ifr_addr).sin_addr;

        struct ifreq devifreq;
        setString(devifreq.ifr_name, sizeof(devifreq.ifr_name), ifc.ifc_req[i].ifr_name);

        if(ioctl(fd, SIOCGIFBRDADDR, &devifreq) == -1)
            (IPV4Address&)brdaddr = htonl(INADDR_ANY);
        else
            (IPV4Address&)brdaddr = ((sockaddr_in&)devifreq.ifr_broadaddr).sin_addr;

        if(ioctl(fd, SIOCGIFNETMASK, &devifreq) == -1)
            maskaddr = htonl(INADDR_BROADCAST);
        else
            (IPV4Address&)maskaddr = ((sockaddr_in&)devifreq.ifr_addr).sin_addr;

#if defined(SIOCGLIFMTU) && !defined(__hpux)
        struct lifreq devlifreq;
        if(ioctl(fd, SIOCGLIFMTU, &devlifreq) == -1)
            mtu = 0;
        else
            mtu = devlifreq.lifr_mtu;
#else
        if(ioctl(fd, SIOCGIFMTU, &devifreq) == -1)
            mtu = 0;
        else
#if defined(__hpux)
            mtu = devifreq.ifr_metric;
#else
            mtu = devifreq.ifr_mtu;
#endif
#endif
        devs.push_back(NetworkDeviceInfo(ifc.ifc_req[i].ifr_name, addr, brdaddr, maskaddr, mtu));
    }

    close(fd);
#elif defined(SIO_GET_INTERFACE_LIST) // WIN32

    SOCKET s = WSASocket(AF_INET, SOCK_DGRAM, 0, 0, 0, 0);
    if(s == INVALID_SOCKET) {
        if(WSAGetLastError() == WSANOTINITIALISED) {
            WSADATA wsadata;
            WSAStartup(MAKEWORD(2,0),&wsadata);
        }
        else
            return false;
    }

    char outbuff[8192];
    DWORD outlen;
    DWORD ret = WSAIoctl(s, SIO_GET_INTERFACE_LIST, 0, 0, outbuff, sizeof(outbuff), &outlen, 0, 0);
    if(ret == SOCKET_ERROR)
        return false;

    INTERFACE_INFO* iflist = (INTERFACE_INFO*)outbuff;
    int ifcount = outlen / sizeof(INTERFACE_INFO);

    IPV4Host addr;
    IPV4Broadcast brdaddr;
    IPV4Mask maskaddr("0.0.0.0");

    for(int i = 0; i < ifcount; ++i) {
        addr = ((sockaddr_in&)iflist[i].iiAddress).sin_addr;
        (IPV4Address&)brdaddr = ((sockaddr_in&)iflist[i].iiBroadcastAddress).sin_addr;
        (IPV4Address&)maskaddr = ((sockaddr_in&)iflist[i].iiNetmask).sin_addr;
        devs.push_back(NetworkDeviceInfo("", addr, brdaddr, maskaddr, -1));
    }

    closesocket(s);
#endif

    return true;
}

#endif
#endif

#ifdef  CCXX_NAMESPACES
}
#endif
/** EMACS **
 * Local variables:
 * mode: c++
 * c-basic-offset: 4
 * End:
 */