1 | /* |
1 | /* |
2 | sockinfo.C -- socket address management |
2 | sockinfo.C -- socket address management |
3 | Copyright (C) 2003 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
5 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify it |
6 | 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 |
7 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
8 | (at your option) any later version. |
10 | option) any later version. |
9 | |
11 | |
10 | 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 |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
13 | GNU General Public License for more details. |
15 | Public License for more details. |
14 | |
16 | |
15 | 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 |
16 | along with this program; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
17 | 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. |
18 | */ |
30 | */ |
19 | |
31 | |
20 | #include "config.h" |
32 | #include "config.h" |
21 | |
33 | |
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34 | // for gethostbyname |
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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> |
22 | #include <arpa/inet.h> |
40 | #include <arpa/inet.h> |
23 | #include <netdb.h> |
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24 | |
41 | |
25 | #include "gettext.h" |
42 | #include "gettext.h" |
26 | |
43 | |
27 | #include "sockinfo.h" |
44 | #include "sockinfo.h" |
28 | #include "slog.h" |
45 | #include "slog.h" |
29 | |
46 | |
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47 | #include <cstring> |
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48 | #include <cstdio> |
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49 | |
30 | // all ipv4-based protocols |
50 | // all ipv4-based protocols |
31 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4) |
51 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4) |
32 | |
52 | |
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53 | void |
33 | void sockinfo::set (const sockaddr_in *sa, u8 prot_) |
54 | sockinfo::set (const sockaddr_in *sa, u8 prot_) |
34 | { |
55 | { |
35 | host = sa->sin_addr.s_addr; |
56 | host = sa->sin_addr.s_addr; |
36 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
57 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
37 | prot = prot_; |
58 | prot = prot_; |
38 | } |
59 | } |
39 | |
60 | |
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61 | void |
40 | void sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
62 | sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
41 | { |
63 | { |
42 | prot = prot_; |
64 | prot = prot_; |
43 | host = 0; |
65 | host = 0; |
44 | port = htons (port_); |
66 | port = htons (port_); |
45 | |
67 | |
46 | if (prot & PROTv4 |
68 | if (prot & PROTv4 |
47 | && hostname) |
69 | && hostname) |
48 | { |
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 | { |
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76 | host = in.s_addr; |
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77 | } |
49 | struct hostent *he = gethostbyname (hostname); |
78 | else if ((he = gethostbyname (hostname)) |
50 | |
79 | && he->h_addrtype == AF_INET |
51 | if (he |
80 | && he->h_length == 4 |
52 | && he->h_addrtype == AF_INET && he->h_length == 4 && he->h_addr_list[0]) |
81 | && he->h_addr_list[0]) |
53 | { |
82 | { |
54 | //sa->sin_family = he->h_addrtype; |
83 | //sa->sin_family = he->h_addrtype; |
55 | memcpy (&host, he->h_addr_list[0], 4); |
84 | memcpy (&host, he->h_addr_list[0], 4); |
56 | } |
85 | } |
57 | else |
86 | else |
… | |
… | |
60 | } |
89 | } |
61 | |
90 | |
62 | void |
91 | void |
63 | sockinfo::set (const conf_node *conf, u8 prot_) |
92 | sockinfo::set (const conf_node *conf, u8 prot_) |
64 | { |
93 | { |
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94 | if (prot_ == PROT_DNSv4) |
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95 | { |
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96 | host = htonl (conf->id); port = 0; prot = prot_; |
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97 | } |
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98 | else |
65 | set (conf->hostname, |
99 | set (conf->hostname, |
66 | prot_ == PROT_UDPv4 ? conf->udp_port |
100 | prot_ == PROT_UDPv4 ? conf->udp_port |
67 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
101 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
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102 | : prot_ == PROT_DNSv4 ? conf->dns_port |
68 | : 0, |
103 | : 0, |
69 | prot_); |
104 | prot_); |
70 | } |
105 | } |
71 | |
106 | |
72 | const sockaddr * |
107 | const sockaddr * |
73 | sockinfo::sav4() const |
108 | sockinfo::sav4() const |
74 | { |
109 | { |
… | |
… | |
91 | sprintf (hostport, "%.15s", inet_ntoa (ia)); |
126 | sprintf (hostport, "%.15s", inet_ntoa (ia)); |
92 | |
127 | |
93 | return hostport; |
128 | return hostport; |
94 | } |
129 | } |
95 | |
130 | |
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131 | bool |
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132 | sockinfo::valid () const |
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133 | { |
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134 | return (prot & THISNODE->protocols) && host; |
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135 | } |
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136 | |
96 | sockinfo::operator const char *() const |
137 | sockinfo::operator const char *() const |
97 | { |
138 | { |
98 | in_addr ia = { host }; |
139 | in_addr ia = { host }; |
99 | |
140 | |
100 | sprintf (hostport, "%s/%.15s:%d", strprotocol (prot), inet_ntoa (ia), ntohs (port) & 0xffff); |
141 | sprintf (hostport, "%s/%.15s:%d", strprotocol (prot), inet_ntoa (ia), ntohs (port) & 0xffff); |
… | |
… | |
105 | u8 |
146 | u8 |
106 | sockinfo::supported_protocols (conf_node *conf) |
147 | sockinfo::supported_protocols (conf_node *conf) |
107 | { |
148 | { |
108 | u8 protocols = prot; |
149 | u8 protocols = prot; |
109 | |
150 | |
110 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
151 | if (prot & (PROT_IPv4 | PROT_ICMPv4 | PROT_UDPv4 | PROT_TCPv4)) |
111 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
152 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
112 | |
153 | |
113 | if (conf |
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114 | && prot & PROTv4 |
154 | if (conf && prot & PROTv4) |
115 | && conf->protocols & PROT_UDPv4 |
155 | { |
116 | && conf->udp_port) |
156 | if (conf->protocols & PROT_UDPv4 && conf->udp_port) |
117 | protocols |= PROT_UDPv4; |
157 | protocols |= PROT_UDPv4; |
118 | |
158 | |
119 | if (conf |
159 | if (conf->protocols & PROT_TCPv4 && conf->tcp_port) |
120 | && prot & PROTv4 |
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121 | && conf->protocols & PROT_TCPv4 |
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122 | && conf->tcp_port) |
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123 | protocols |= PROT_TCPv4; |
160 | protocols |= PROT_TCPv4; |
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161 | |
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162 | if (conf->protocols & PROT_DNSv4 && conf->dns_port) |
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163 | protocols |= PROT_DNSv4; |
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164 | } |
124 | |
165 | |
125 | return protocols; |
166 | return protocols; |
126 | } |
167 | } |
127 | |
168 | |
128 | bool |
169 | bool |