4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <netinet/in.h>
34 #include <arpa/inet.h>
37 #include "socket-client.h"
38 #include "socket-util.h"
42 #include "parseaddr.h"
44 struct pa_socket_client {
46 struct pa_mainloop_api *mainloop;
48 struct pa_io_event *io_event;
49 struct pa_defer_event *defer_event;
50 void (*callback)(struct pa_socket_client*c, struct pa_iochannel *io, void *userdata);
55 static struct pa_socket_client*pa_socket_client_new(struct pa_mainloop_api *m) {
56 struct pa_socket_client *c;
59 c = pa_xmalloc(sizeof(struct pa_socket_client));
64 c->defer_event = NULL;
71 static void do_call(struct pa_socket_client *c) {
72 struct pa_iochannel *io = NULL;
75 assert(c && c->callback);
77 pa_socket_client_ref(c);
79 lerror = sizeof(error);
80 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, &error, &lerror) < 0) {
81 pa_log(__FILE__": getsockopt(): %s\n", strerror(errno));
85 if (lerror != sizeof(error)) {
86 pa_log(__FILE__": getsockopt() returned invalid size.\n");
91 /* pa_log(__FILE__": connect(): %s\n", strerror(error)); */
96 io = pa_iochannel_new(c->mainloop, c->fd, c->fd);
105 c->callback(c, io, c->userdata);
107 pa_socket_client_unref(c);
110 static void connect_fixed_cb(struct pa_mainloop_api *m, struct pa_defer_event *e, void *userdata) {
111 struct pa_socket_client *c = userdata;
112 assert(m && c && c->defer_event == e);
113 m->defer_free(c->defer_event);
114 c->defer_event = NULL;
118 static void connect_io_cb(struct pa_mainloop_api*m, struct pa_io_event *e, int fd, enum pa_io_event_flags f, void *userdata) {
119 struct pa_socket_client *c = userdata;
120 assert(m && c && c->io_event == e && fd >= 0);
121 m->io_free(c->io_event);
126 static int do_connect(struct pa_socket_client *c, const struct sockaddr *sa, socklen_t len) {
128 assert(c && sa && len);
130 pa_make_nonblock_fd(c->fd);
132 if ((r = connect(c->fd, sa, len)) < 0) {
133 if (errno != EINPROGRESS) {
134 /*pa_log(__FILE__": connect(): %s\n", strerror(errno));*/
138 c->io_event = c->mainloop->io_new(c->mainloop, c->fd, PA_IO_EVENT_OUTPUT, connect_io_cb, c);
141 c->defer_event = c->mainloop->defer_new(c->mainloop, connect_fixed_cb, c);
142 assert(c->defer_event);
148 struct pa_socket_client* pa_socket_client_new_ipv4(struct pa_mainloop_api *m, uint32_t address, uint16_t port) {
149 struct sockaddr_in sa;
150 assert(m && port > 0);
152 memset(&sa, 0, sizeof(sa));
153 sa.sin_family = AF_INET;
154 sa.sin_port = htons(port);
155 sa.sin_addr.s_addr = htonl(address);
157 return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa));
160 struct pa_socket_client* pa_socket_client_new_unix(struct pa_mainloop_api *m, const char *filename) {
161 struct sockaddr_un sa;
162 assert(m && filename);
164 memset(&sa, 0, sizeof(sa));
165 sa.sun_family = AF_LOCAL;
166 strncpy(sa.sun_path, filename, sizeof(sa.sun_path)-1);
167 sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
169 return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa));
172 struct pa_socket_client* pa_socket_client_new_sockaddr(struct pa_mainloop_api *m, const struct sockaddr *sa, size_t salen) {
173 struct pa_socket_client *c;
175 c = pa_socket_client_new(m);
178 switch (sa->sa_family) {
184 c->local = ((const struct sockaddr_in*) sa)->sin_addr.s_addr == INADDR_LOOPBACK;
188 c->local = memcmp(&((const struct sockaddr_in6*) sa)->sin6_addr, &in6addr_loopback, sizeof(struct in6_addr)) == 0;
195 if ((c->fd = socket(sa->sa_family, SOCK_STREAM, 0)) < 0) {
196 pa_log(__FILE__": socket(): %s\n", strerror(errno));
200 pa_fd_set_cloexec(c->fd, 1);
201 if (sa->sa_family == AF_INET || sa->sa_family == AF_INET6)
202 pa_socket_tcp_low_delay(c->fd);
204 pa_socket_low_delay(c->fd);
206 if (do_connect(c, sa, salen) < 0)
212 pa_socket_client_unref(c);
217 void socket_client_free(struct pa_socket_client *c) {
218 assert(c && c->mainloop);
220 c->mainloop->io_free(c->io_event);
222 c->mainloop->defer_free(c->defer_event);
228 void pa_socket_client_unref(struct pa_socket_client *c) {
229 assert(c && c->ref >= 1);
232 socket_client_free(c);
235 struct pa_socket_client* pa_socket_client_ref(struct pa_socket_client *c) {
236 assert(c && c->ref >= 1);
241 void pa_socket_client_set_callback(struct pa_socket_client *c, void (*on_connection)(struct pa_socket_client *c, struct pa_iochannel*io, void *userdata), void *userdata) {
243 c->callback = on_connection;
244 c->userdata = userdata;
247 struct pa_socket_client* pa_socket_client_new_ipv6(struct pa_mainloop_api *m, uint8_t address[16], uint16_t port) {
248 struct sockaddr_in6 sa;
250 memset(&sa, 0, sizeof(sa));
251 sa.sin6_family = AF_INET6;
252 sa.sin6_port = htons(port);
253 memcpy(&sa.sin6_addr, address, sizeof(sa.sin6_addr));
255 return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa));
258 struct pa_socket_client* pa_socket_client_new_string(struct pa_mainloop_api *m, const char*name, uint16_t default_port) {
259 struct pa_socket_client *c = NULL;
260 struct pa_parsed_address a;
263 if (pa_parse_address(name, &a) < 0)
267 a.port = default_port;
270 case PA_PARSED_ADDRESS_UNIX:
271 c = pa_socket_client_new_unix(m, a.path_or_host);
274 case PA_PARSED_ADDRESS_TCP4: /* Fallthrough */
275 case PA_PARSED_ADDRESS_TCP6: /* Fallthrough */
276 case PA_PARSED_ADDRESS_TCP_AUTO:{
278 struct addrinfo hints, *res;
280 memset(&hints, 0, sizeof(hints));
281 hints.ai_family = a.type == PA_PARSED_ADDRESS_TCP4 ? AF_INET : (a.type == PA_PARSED_ADDRESS_TCP6 ? AF_INET6 : AF_UNSPEC);
283 ret = getaddrinfo(a.path_or_host, NULL, &hints, &res);
285 if (ret < 0 || !res || !res->ai_addr)
288 if (res->ai_family == AF_INET) {
289 if (res->ai_addrlen != sizeof(struct sockaddr_in))
291 assert(res->ai_addr->sa_family == res->ai_family);
293 ((struct sockaddr_in*) res->ai_addr)->sin_port = htons(a.port);
294 } else if (res->ai_family == AF_INET6) {
295 if (res->ai_addrlen != sizeof(struct sockaddr_in6))
297 assert(res->ai_addr->sa_family == res->ai_family);
299 ((struct sockaddr_in6*) res->ai_addr)->sin6_port = htons(a.port);
303 c = pa_socket_client_new_sockaddr(m, res->ai_addr, res->ai_addrlen);
309 pa_xfree(a.path_or_host);
314 /* Return non-zero when the target sockaddr is considered
315 local. "local" means UNIX socket or TCP socket on localhost. Other
316 local IP addresses are not considered local. */
317 int pa_socket_client_is_local(struct pa_socket_client *c) {