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[disorder] / lib / client-common.c
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460b9539 1/*
2 * This file is part of DisOrder
0227f67d 3 * Copyright (C) 2004, 2005, 2006, 2007 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.
e7eb3a27
RK
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 */
18
05b75f8d 19#include "common.h"
460b9539 20
460b9539 21#include <netinet/in.h>
22#include <sys/un.h>
460b9539 23#include <errno.h>
24#include <netdb.h>
25
26#include "log.h"
27#include "configuration.h"
28#include "client-common.h"
29#include "addr.h"
0227f67d 30#include "mem.h"
460b9539 31
0227f67d 32/** @brief Figure out what address to connect to
319d7107 33 * @param c Configuration to honor
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34 * @param sap Where to store pointer to sockaddr
35 * @param namep Where to store socket name
36 * @return Socket length, or (socklen_t)-1
0e4472a0 37 */
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38socklen_t find_server(struct config *c,
39 struct sockaddr **sap, char **namep) {
0227f67d 40 struct sockaddr *sa;
460b9539 41 struct sockaddr_un su;
0227f67d 42 struct addrinfo *res = 0;
460b9539 43 char *name;
0227f67d 44 socklen_t len;
460b9539 45
46 static const struct addrinfo pref = {
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47 .ai_flags = 0,
48 .ai_family = PF_INET,
49 .ai_socktype = SOCK_STREAM,
50 .ai_protocol = IPPROTO_TCP,
460b9539 51 };
52
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53 if(c->connect.n) {
54 res = get_address(&c->connect, &pref, &name);
460b9539 55 if(!res) return -1;
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56 sa = res->ai_addr;
57 len = res->ai_addrlen;
460b9539 58 } else {
319d7107 59 name = config_get_file2(c, "socket");
0227f67d 60 if(strlen(name) >= sizeof su.sun_path) {
460b9539 61 error(errno, "socket path is too long");
62 return -1;
63 }
64 memset(&su, 0, sizeof su);
65 su.sun_family = AF_UNIX;
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66 strcpy(su.sun_path, name);
67 sa = (struct sockaddr *)&su;
68 len = sizeof su;
460b9539 69 }
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70 *sap = xmalloc_noptr(len);
71 memcpy(*sap, sa, len);
72 if(namep)
73 *namep = name;
74 if(res)
75 freeaddrinfo(res);
76 return len;
460b9539 77}
78
79/*
80Local Variables:
81c-basic-offset:2
82comment-column:40
83fill-column:79
84indent-tabs-mode:nil
85End:
86*/