1 | /* |
1 | /* |
2 | sockinfo.C -- socket address management |
2 | sockinfo.C -- socket address management |
3 | Copyright (C) 2003 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
5 | This file is part of GVPE. |
5 | This file is part of GVPE. |
6 | |
6 | |
7 | GVPE is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | it under the terms of the GNU General Public License as published by |
8 | under the terms of the GNU General Public License as published by the |
9 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
10 | (at your option) any later version. |
10 | option) any later version. |
11 | |
11 | |
12 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, but |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
15 | GNU General Public License for more details. |
15 | Public License for more details. |
16 | |
16 | |
17 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License along |
18 | along with gvpe; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | |
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20 | Additional permission under GNU GPL version 3 section 7 |
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21 | |
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22 | If you modify this Program, or any covered work, by linking or |
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23 | combining it with the OpenSSL project's OpenSSL library (or a modified |
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24 | version of that library), containing parts covered by the terms of the |
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25 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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26 | additional permission to convey the resulting work. Corresponding |
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27 | Source for a non-source form of such a combination shall include the |
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28 | source code for the parts of OpenSSL used as well as that of the |
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29 | covered work. |
20 | */ |
30 | */ |
21 | |
31 | |
22 | #include "config.h" |
32 | #include "config.h" |
23 | |
33 | |
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34 | // for gethostbyname |
24 | #include <netdb.h> |
35 | #include <netdb.h> |
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36 | |
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37 | // for inet_aton |
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38 | #include <sys/socket.h> |
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39 | #include <netinet/in.h> |
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40 | #include <arpa/inet.h> |
25 | |
41 | |
26 | #include "gettext.h" |
42 | #include "gettext.h" |
27 | |
43 | |
28 | #include "sockinfo.h" |
44 | #include "sockinfo.h" |
29 | #include "slog.h" |
45 | #include "slog.h" |
30 | |
46 | |
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47 | #include <cstring> |
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48 | #include <cstdio> |
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49 | |
31 | // all ipv4-based protocols |
50 | // all ipv4-based protocols |
32 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4) |
51 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4) |
33 | |
52 | |
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53 | void |
34 | void sockinfo::set (const sockaddr_in *sa, u8 prot_) |
54 | sockinfo::set (const sockaddr_in *sa, u8 prot_) |
35 | { |
55 | { |
36 | host = sa->sin_addr.s_addr; |
56 | host = sa->sin_addr.s_addr; |
37 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
57 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
38 | prot = prot_; |
58 | prot = prot_; |
39 | } |
59 | } |
40 | |
60 | |
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61 | void |
41 | void sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
62 | sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
42 | { |
63 | { |
43 | prot = prot_; |
64 | prot = prot_; |
44 | host = 0; |
65 | host = 0; |
45 | port = htons (port_); |
66 | port = htons (port_); |
46 | |
67 | |
47 | if (prot & PROTv4 |
68 | if (prot & PROTv4 |
48 | && hostname) |
69 | && hostname) |
49 | { |
70 | { |
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71 | struct in_addr in; |
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72 | struct hostent *he; |
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73 | |
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74 | if (inet_aton (hostname, &in)) |
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75 | host = in.s_addr; |
50 | struct hostent *he = gethostbyname (hostname); |
76 | else if ((he = gethostbyname (hostname)) |
51 | |
77 | && he->h_addrtype == AF_INET |
52 | if (he |
78 | && he->h_length == 4 |
53 | && he->h_addrtype == AF_INET && he->h_length == 4 && he->h_addr_list[0]) |
79 | && he->h_addr_list[0]) |
54 | { |
80 | memcpy (&host, he->h_addr_list[0], 4); //sa->sin_family = he->h_addrtype; |
55 | //sa->sin_family = he->h_addrtype; |
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56 | memcpy (&host, he->h_addr_list[0], 4); |
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57 | } |
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58 | else |
81 | else |
59 | slog (L_NOTICE, _("unable to resolve host '%s'"), hostname); |
82 | slog (L_NOTICE, _("unable to resolve host '%s'"), hostname); |
60 | } |
83 | } |
61 | } |
84 | } |
62 | |
85 | |
… | |
… | |
98 | sprintf (hostport, "%.15s", inet_ntoa (ia)); |
121 | sprintf (hostport, "%.15s", inet_ntoa (ia)); |
99 | |
122 | |
100 | return hostport; |
123 | return hostport; |
101 | } |
124 | } |
102 | |
125 | |
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126 | bool |
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127 | sockinfo::valid () const |
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128 | { |
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129 | return (prot & THISNODE->protocols) && host; |
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130 | } |
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131 | |
103 | sockinfo::operator const char *() const |
132 | sockinfo::operator const char *() const |
104 | { |
133 | { |
105 | in_addr ia = { host }; |
134 | in_addr ia = { host }; |
106 | |
135 | |
107 | sprintf (hostport, "%s/%.15s:%d", strprotocol (prot), inet_ntoa (ia), ntohs (port) & 0xffff); |
136 | sprintf (hostport, "%s/%.15s:%d", strprotocol (prot), inet_ntoa (ia), ntohs (port) & 0xffff); |
… | |
… | |
112 | u8 |
141 | u8 |
113 | sockinfo::supported_protocols (conf_node *conf) |
142 | sockinfo::supported_protocols (conf_node *conf) |
114 | { |
143 | { |
115 | u8 protocols = prot; |
144 | u8 protocols = prot; |
116 | |
145 | |
117 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
146 | if (prot & (PROT_IPv4 | PROT_ICMPv4 | PROT_UDPv4 | PROT_TCPv4)) |
118 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
147 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
119 | |
148 | |
120 | if (conf |
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121 | && prot & PROTv4 |
149 | if (conf && prot & PROTv4) |
122 | && conf->protocols & PROT_UDPv4 |
150 | { |
123 | && conf->udp_port) |
151 | if (conf->protocols & PROT_UDPv4 && conf->udp_port) |
124 | protocols |= PROT_UDPv4; |
152 | protocols |= PROT_UDPv4; |
125 | |
153 | |
126 | if (conf |
154 | if (conf->protocols & PROT_TCPv4 && conf->tcp_port) |
127 | && prot & PROTv4 |
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128 | && conf->protocols & PROT_TCPv4 |
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129 | && conf->tcp_port) |
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130 | protocols |= PROT_TCPv4; |
155 | protocols |= PROT_TCPv4; |
131 | |
156 | |
132 | if (conf |
157 | if (conf->protocols & PROT_DNSv4 && conf->dns_port) |
133 | && prot & PROTv4 |
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134 | && conf->protocols & PROT_DNSv4 |
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135 | && conf->dns_port) |
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136 | protocols |= PROT_DNSv4; |
158 | protocols |= PROT_DNSv4; |
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159 | } |
137 | |
160 | |
138 | return protocols; |
161 | return protocols; |
139 | } |
162 | } |
140 | |
163 | |
141 | bool |
164 | bool |