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Comparing gvpe/src/sockinfo.C (file contents):
Revision 1.1 by pcg, Fri Mar 28 04:05:10 2003 UTC vs.
Revision 1.27 by root, Tue Jan 17 21:25:50 2012 UTC

1/* 1/*
2 sockinfo.c -- socket address management 2 sockinfo.C -- socket address management
3 Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
3 4
5 This file is part of GVPE.
6
4 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
5 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
6 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
7 (at your option) any later version. 10 option) any later version.
8 11
9 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
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
12 GNU General Public License for more details. 15 Public License for more details.
13 16
14 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
15 along with this program; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
16 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19
20 Additional permission under GNU GPL version 3 section 7
21
22 If you modify this Program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a modified
24 version of that library), containing parts covered by the terms of the
25 OpenSSL or SSLeay licenses, the licensors of this Program grant you
26 additional permission to convey the resulting work. Corresponding
27 Source for a non-source form of such a combination shall include the
28 source code for the parts of OpenSSL used as well as that of the
29 covered work.
17*/ 30*/
18 31
19#include "config.h" 32#include "config.h"
20 33
21#include "arpa/inet.h" 34#include <netdb.h>
22 35
23#include "gettext.h" 36#include "gettext.h"
24 37
25#include "sockinfo.h" 38#include "sockinfo.h"
26#include "slog.h" 39#include "slog.h"
27 40
41#include <cstring>
42#include <cstdio>
43
44// all ipv4-based protocols
45#define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4 | PROT_IPv42)
46
47void
28void sockinfo::set (const sockaddr_in *sa, u8 prot_) 48sockinfo::set (const sockaddr_in *sa, u8 prot_)
29{ 49{
30 host = sa->sin_addr.s_addr; 50 host = sa->sin_addr.s_addr;
31 port = prot_ == PROT_IPv4 ? 0 : sa->sin_port; 51 port = prot_ & (PROT_IPv4 | PROT_ICMPv4 | PROT_IPv42) ? 0 : sa->sin_port;
32 prot = prot_; 52 prot = prot_;
33} 53}
34 54
35void 55void
36sockinfo::set (const conf_node *conf) 56sockinfo::set (const char *hostname, u16 port_, u8 prot_)
37{ 57{
58 prot = prot_;
38 host = 0; 59 host = 0;
39 port = htons (conf->udp_port); 60 port = htons (port_);
40 61
41 if (conf->hostname) 62 if (prot & PROTv4
63 && hostname)
42 { 64 {
43 struct hostent *he = gethostbyname (conf->hostname); 65 struct hostent *he = gethostbyname (hostname);
44 66
45 if (he 67 if (he
46 && he->h_addrtype == AF_INET && he->h_length == 4 && he->h_addr_list[0]) 68 && he->h_addrtype == AF_INET && he->h_length == 4 && he->h_addr_list[0])
47 { 69 {
48 //sa->sin_family = he->h_addrtype; 70 //sa->sin_family = he->h_addrtype;
49 memcpy (&host, he->h_addr_list[0], 4); 71 memcpy (&host, he->h_addr_list[0], 4);
50
51 prot = PROT_UDPv4 | PROT_IPv4;
52 } 72 }
53 else 73 else
54 slog (L_NOTICE, _("unable to resolve host '%s'"), conf->hostname); 74 slog (L_NOTICE, _("unable to resolve host '%s'"), hostname);
75 }
76}
77
78void
79sockinfo::set (const conf_node *conf, u8 prot_)
80{
81 if (prot_ == PROT_DNSv4)
55 } 82 {
83 host = htonl (conf->id); port = 0; prot = prot_;
84 }
85 else
86 set (conf->hostname,
87 prot_ == PROT_UDPv4 ? conf->udp_port
88 : prot_ == PROT_TCPv4 ? conf->tcp_port
89 : prot_ == PROT_DNSv4 ? conf->dns_port
90 : 0,
91 prot_);
56} 92}
57
58 93
59const sockaddr * 94const sockaddr *
60sockinfo::sav4() const 95sockinfo::sav4() const
61{ 96{
62 static sockaddr_in sa; 97 static sockaddr_in sa;
… …
66 sa.sin_addr.s_addr = host; 101 sa.sin_addr.s_addr = host;
67 102
68 return (const sockaddr *)&sa; 103 return (const sockaddr *)&sa;
69} 104}
70 105
71static char hostport[15 + 1 + 5 + 1]; // IPv4 : port 106static char hostport[10 + 15 + 1 + 5 + 1]; // proto / IPv4 : port
72 107
73const char * 108const char *
74sockinfo::ntoa () const 109sockinfo::ntoa () const
75{ 110{
76 in_addr ia = { host }; 111 in_addr ia = { host };
… …
78 sprintf (hostport, "%.15s", inet_ntoa (ia)); 113 sprintf (hostport, "%.15s", inet_ntoa (ia));
79 114
80 return hostport; 115 return hostport;
81} 116}
82 117
118bool
119sockinfo::valid () const
120{
121 return (prot & THISNODE->protocols) && host;
122}
123
83sockinfo::operator const char *() const 124sockinfo::operator const char *() const
84{ 125{
85 in_addr ia = { host }; 126 in_addr ia = { host };
86 127
87 sprintf (hostport, "%.15s:%d", inet_ntoa (ia), ntohs (port) & 0xffff); 128 sprintf (hostport, "%s/%.15s:%d", strprotocol (prot), inet_ntoa (ia), ntohs (port) & 0xffff);
88 129
89 return hostport; 130 return hostport;
90} 131}
91 132
133u8
134sockinfo::supported_protocols (conf_node *conf)
135{
136 u8 protocols = prot;
137
138 if (prot & (PROT_IPv4 | PROT_ICMPv4 | PROT_UDPv4 | PROT_TCPv4 | PROT_IPv42))
139 protocols |= PROT_IPv4 | PROT_ICMPv4 | PROT_IPv42;
140
141 if (conf && prot & PROTv4)
142 {
143 if (conf->protocols & PROT_UDPv4 && conf->udp_port)
144 protocols |= PROT_UDPv4;
145
146 if (conf->protocols & PROT_TCPv4 && conf->tcp_port)
147 protocols |= PROT_TCPv4;
148
149 if (conf->protocols & PROT_DNSv4 && conf->dns_port)
150 protocols |= PROT_DNSv4;
151 }
152
153 return protocols;
154}
155
156bool
157sockinfo::upgrade_protocol (u8 prot_, conf_node *conf)
158{
159 if (prot_ == prot)
160 return true;
161
162 if (prot & PROTv4
163 && prot_ & PROTv4)
164 {
165 if (prot_ & (PROT_IPv4 | PROT_ICMPv4 | PROT_IPv42))
166 {
167 prot = prot_;
168 port = 0;
169 return true;
170 }
171
172 if (conf
173 && prot_ & PROT_UDPv4
174 && conf->protocols & PROT_UDPv4
175 && conf->udp_port)
176 {
177 prot = prot_;
178 port = htons (conf->udp_port);
179 return true;
180 }
181
182 if (conf
183 && prot_ & PROT_TCPv4
184 && conf->protocols & PROT_TCPv4
185 && conf->tcp_port)
186 {
187 prot = prot_;
188 port = htons (conf->tcp_port);
189 return true;
190 }
191 }
192
193 return false;
194}
195
196bool
197operator == (const sockinfo &a, const sockinfo &b)
198{
199 return a.host == b.host && a.port == b.port && a.prot == b.prot;
200}
201
202bool
203operator < (const sockinfo &a, const sockinfo &b)
204{
205 return a.host < b.host
206 || (a.host == b.host && (a.port < b.port
207 || (a.port == b.port && a.prot < b.prot)));
208}
209

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