1 | /* |
1 | /* |
2 | sockinfo.C -- socket address management |
2 | sockinfo.C -- socket address management |
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3 | Copyright (C) 2003 Marc Lehmann <pcg@goof.com> |
3 | |
4 | |
4 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
6 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
7 | (at your option) any later version. |
8 | (at your option) any later version. |
… | |
… | |
16 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
17 | */ |
18 | */ |
18 | |
19 | |
19 | #include "config.h" |
20 | #include "config.h" |
20 | |
21 | |
21 | #include <arpa/inet.h> |
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22 | #include <netdb.h> |
22 | #include <netdb.h> |
23 | |
23 | |
24 | #include "gettext.h" |
24 | #include "gettext.h" |
25 | |
25 | |
26 | #include "sockinfo.h" |
26 | #include "sockinfo.h" |
27 | #include "slog.h" |
27 | #include "slog.h" |
28 | |
28 | |
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29 | // all ipv4-based protocols |
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30 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4) |
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31 | |
29 | void sockinfo::set (const sockaddr_in *sa, u8 prot_) |
32 | void sockinfo::set (const sockaddr_in *sa, u8 prot_) |
30 | { |
33 | { |
31 | host = sa->sin_addr.s_addr; |
34 | host = sa->sin_addr.s_addr; |
32 | port = prot_ == PROT_IPv4 ? 0 : sa->sin_port; |
35 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
33 | prot = prot_; |
36 | prot = prot_; |
34 | } |
37 | } |
35 | |
38 | |
36 | void sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
39 | void sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
37 | { |
40 | { |
38 | prot = prot_; |
41 | prot = prot_; |
39 | host = 0; |
42 | host = 0; |
40 | port = htons (port_); |
43 | port = htons (port_); |
41 | |
44 | |
42 | if (prot & (PROT_UDPv4 | PROT_TCPv4 | PROT_IPv4) |
45 | if (prot & PROTv4 |
43 | && hostname) |
46 | && hostname) |
44 | { |
47 | { |
45 | struct hostent *he = gethostbyname (hostname); |
48 | struct hostent *he = gethostbyname (hostname); |
46 | |
49 | |
47 | if (he |
50 | if (he |
… | |
… | |
56 | } |
59 | } |
57 | |
60 | |
58 | void |
61 | void |
59 | sockinfo::set (const conf_node *conf, u8 prot_) |
62 | sockinfo::set (const conf_node *conf, u8 prot_) |
60 | { |
63 | { |
61 | set (conf->hostname, |
64 | set (prot_ == PROT_DNSv4 ? ::conf.dns_forw_host |
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65 | : conf->hostname, |
62 | prot_ == PROT_UDPv4 ? conf->udp_port |
66 | prot_ == PROT_UDPv4 ? conf->udp_port |
63 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
67 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
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68 | : prot_ == PROT_DNSv4 ? conf->dns_port |
64 | : 0, |
69 | : 0, |
65 | prot_); |
70 | prot_); |
66 | } |
71 | } |
67 | |
72 | |
68 | const sockaddr * |
73 | const sockaddr * |
69 | sockinfo::sav4() const |
74 | sockinfo::sav4() const |
70 | { |
75 | { |
… | |
… | |
102 | sockinfo::supported_protocols (conf_node *conf) |
107 | sockinfo::supported_protocols (conf_node *conf) |
103 | { |
108 | { |
104 | u8 protocols = prot; |
109 | u8 protocols = prot; |
105 | |
110 | |
106 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
111 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
107 | protocols |= PROT_IPv4; |
112 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
108 | |
113 | |
109 | if (conf |
114 | if (conf |
110 | && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
115 | && prot & PROTv4 |
111 | && conf->protocols & PROT_UDPv4 |
116 | && conf->protocols & PROT_UDPv4 |
112 | && conf->udp_port) |
117 | && conf->udp_port) |
113 | protocols |= PROT_UDPv4; |
118 | protocols |= PROT_UDPv4; |
114 | |
119 | |
115 | if (conf |
120 | if (conf |
116 | && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
121 | && prot & PROTv4 |
117 | && conf->protocols & PROT_TCPv4 |
122 | && conf->protocols & PROT_TCPv4 |
118 | && conf->tcp_port) |
123 | && conf->tcp_port) |
119 | protocols |= PROT_TCPv4; |
124 | protocols |= PROT_TCPv4; |
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125 | |
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126 | if (conf |
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127 | && prot & PROTv4 |
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128 | && conf->protocols & PROT_DNSv4 |
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129 | && conf->dns_port) |
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130 | protocols |= PROT_DNSv4; |
120 | |
131 | |
121 | return protocols; |
132 | return protocols; |
122 | } |
133 | } |
123 | |
134 | |
124 | bool |
135 | bool |
125 | sockinfo::upgrade_protocol (u8 prot_, conf_node *conf) |
136 | sockinfo::upgrade_protocol (u8 prot_, conf_node *conf) |
126 | { |
137 | { |
127 | if (prot_ == prot) |
138 | if (prot_ == prot) |
128 | return true; |
139 | return true; |
129 | |
140 | |
130 | if (prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
141 | if (prot & PROTv4 |
131 | && prot_ & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4)) |
142 | && prot_ & PROTv4) |
132 | { |
143 | { |
133 | if (prot_ & PROT_IPv4) |
144 | if (prot_ & (PROT_IPv4 | PROT_ICMPv4)) |
134 | { |
145 | { |
135 | prot = prot_; |
146 | prot = prot_; |
136 | port = 0; |
147 | port = 0; |
137 | return true; |
148 | return true; |
138 | } |
149 | } |
… | |
… | |
154 | { |
165 | { |
155 | prot = prot_; |
166 | prot = prot_; |
156 | port = htons (conf->tcp_port); |
167 | port = htons (conf->tcp_port); |
157 | return true; |
168 | return true; |
158 | } |
169 | } |
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170 | |
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171 | if (conf |
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172 | && prot_ & PROT_DNSv4 |
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173 | && conf->protocols & PROT_DNSv4 |
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174 | && conf->dns_port) |
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175 | { |
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176 | set (::conf.dns_forw_host, ::conf.dns_forw_port, prot_); |
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177 | return true; |
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178 | } |
159 | } |
179 | } |
160 | |
180 | |
161 | return false; |
181 | return false; |
162 | } |
182 | } |
163 | |
183 | |