chiark / gitweb /
examples/disorder.init.in: Read settings from `/etc/default/disorder'.
[disorder] / lib / client-common.c
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460b9539 1/*
2 * This file is part of DisOrder
cca89d7c 3 * Copyright (C) 2004-7, 2009, 2011-13 Richard Kettlewell
460b9539 4 *
e7eb3a27 5 * This program is free software: you can redistribute it and/or modify
460b9539 6 * it under the terms of the GNU General Public License as published by
e7eb3a27 7 * the Free Software Foundation, either version 3 of the License, or
460b9539 8 * (at your option) any later version.
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9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
460b9539 15 * You should have received a copy of the GNU General Public License
e7eb3a27 16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
460b9539 17 */
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18/** @file lib/client-common.c
19 * @brief Common code to client APIs
20 */
460b9539 21
05b75f8d 22#include "common.h"
460b9539 23
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24#if HAVE_NETINET_IN_H
25# include <netinet/in.h>
26#endif
27#if HAVE_SYS_UN_H
28# include <sys/un.h>
29#endif
460b9539 30#include <errno.h>
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31#if HAVE_NETDB_H
32# include <netdb.h>
33#endif
34#if HAVE_UNISTD_H
35# include <unistd.h>
36#endif
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37#if HAVE_WS2TCPIP_H
38# include <Ws2tcpip.h>
39#endif
460b9539 40
41#include "log.h"
42#include "configuration.h"
43#include "client-common.h"
44#include "addr.h"
0227f67d 45#include "mem.h"
460b9539 46
0227f67d 47/** @brief Figure out what address to connect to
319d7107 48 * @param c Configuration to honor
ff92debd 49 * @param flags Flags to guide the choice
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50 * @param sap Where to store pointer to sockaddr
51 * @param namep Where to store socket name
52 * @return Socket length, or (socklen_t)-1
0e4472a0 53 */
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54socklen_t disorder_find_server(struct config *c, unsigned flags,
55 struct sockaddr **sap, char **namep) {
0227f67d 56 struct sockaddr *sa;
9e42afcd 57#if !_WIN32
460b9539 58 struct sockaddr_un su;
9e42afcd 59#endif
0227f67d 60 struct addrinfo *res = 0;
de37b640 61 char *name = NULL;
0227f67d 62 socklen_t len;
460b9539 63
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64 if(c->connect.af != -1) {
65 res = netaddress_resolve(&c->connect, 0, IPPROTO_TCP);
66 if(!res)
67 return -1;
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68 sa = res->ai_addr;
69 len = res->ai_addrlen;
460b9539 70 } else {
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71#if _WIN32
72 disorder_fatal(0, "local connections are not supported on Windows");
73#else
1be9101e 74 /* use the private socket if possible (which it should be) */
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75 if (!(flags & DISORDER_FS_NOTPRIV)) {
76 name = config_get_file2(c, "private/socket");
77 if(access(name, R_OK) != 0) {
78 xfree(name);
79 name = NULL;
80 }
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81 }
82 if(!name)
83 name = config_get_file2(c, "socket");
0227f67d 84 if(strlen(name) >= sizeof su.sun_path) {
70adc86b 85 disorder_error(0, "socket path is too long");
460b9539 86 return -1;
87 }
88 memset(&su, 0, sizeof su);
89 su.sun_family = AF_UNIX;
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90 strcpy(su.sun_path, name);
91 sa = (struct sockaddr *)&su;
92 len = sizeof su;
f74f4f32 93 xfree(name);
9e42afcd 94#endif
460b9539 95 }
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96 *sap = xmalloc_noptr(len);
97 memcpy(*sap, sa, len);
98 if(namep)
e41a9999 99 *namep = format_sockaddr(sa);
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100 if(res)
101 freeaddrinfo(res);
102 return len;
460b9539 103}
104
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105/** @brief Figure out what address to connect to
106 * @param c Configuration to honor
107 * @param sap Where to store pointer to sockaddr
108 * @param namep Where to store socket name
109 * @return Socket length, or (socklen_t)-1
110 *
111 * The function disorder_find_server() isn't a namespace violation, and has
112 * more functionality. This function is equivalent, to disorder_find_server()
113 * with a zero @c flags argument.
114 */
115socklen_t find_server(struct config *c,
116 struct sockaddr **sap, char **namep) {
117 return disorder_find_server(c, 0, sap, namep);
118}
119
ad131c25 120const char disorder__body[1];
ad131c25 121const char disorder__list[1];
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122const char disorder__integer[1];
123const char disorder__time[1];
ad131c25 124
460b9539 125/*
126Local Variables:
127c-basic-offset:2
128comment-column:40
129fill-column:79
130indent-tabs-mode:nil
131End:
132*/