Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 1 | #include "private-libwebsockets.h" |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 2 | |
Andy Green | 6ee372f | 2012-04-09 15:09:01 +0800 | [diff] [blame] | 3 | struct libwebsocket *__libwebsocket_client_connect_2( |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 4 | struct libwebsocket_context *context, |
| 5 | struct libwebsocket *wsi |
| 6 | ) { |
| 7 | struct pollfd pfd; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 8 | struct hostent *server_hostent; |
| 9 | struct sockaddr_in server_addr; |
| 10 | int n; |
| 11 | int plen = 0; |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 12 | const char *ads; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 13 | |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 14 | lwsl_client("__libwebsocket_client_connect_2\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 15 | |
| 16 | /* |
| 17 | * proxy? |
| 18 | */ |
| 19 | |
| 20 | if (context->http_proxy_port) { |
Andy Green | e48ba31 | 2013-02-10 15:34:59 +0800 | [diff] [blame] | 21 | plen = sprintf((char *)context->service_buffer, |
Andy Green | f54a94b | 2013-02-10 15:19:39 +0800 | [diff] [blame] | 22 | "CONNECT %s:%u HTTP/1.0\x0d\x0a" |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 23 | "User-agent: libwebsockets\x0d\x0a" |
| 24 | /*Proxy-authorization: basic aGVsbG86d29ybGQ= */ |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 25 | "\x0d\x0a", |
| 26 | lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS), |
| 27 | wsi->u.hdr.c_port); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 28 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 29 | /* OK from now on we talk via the proxy, so connect to that */ |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 30 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 31 | /* (will overwrite existing pointer, leaving old string/frag there but unreferenced) */ |
| 32 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, context->http_proxy_address)) |
| 33 | goto oom4; |
| 34 | wsi->u.hdr.c_port = context->http_proxy_port; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | /* |
| 38 | * prepare the actual connection (to the proxy, if any) |
| 39 | */ |
| 40 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 41 | ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS); |
Andy Green | 66a16f3 | 2011-05-24 22:07:45 +0100 | [diff] [blame] | 42 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 43 | lwsl_client("__libwebsocket_client_connect_2: address %s\n", ads); |
| 44 | |
| 45 | server_hostent = gethostbyname(ads); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 46 | if (server_hostent == NULL) { |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 47 | lwsl_err("Unable to get host name from %s\n", ads); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 48 | goto oom4; |
| 49 | } |
| 50 | |
| 51 | wsi->sock = socket(AF_INET, SOCK_STREAM, 0); |
| 52 | |
| 53 | if (wsi->sock < 0) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 54 | lwsl_warn("Unable to open socket\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 55 | goto oom4; |
| 56 | } |
| 57 | |
| 58 | server_addr.sin_family = AF_INET; |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 59 | server_addr.sin_port = htons(wsi->u.hdr.c_port); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 60 | server_addr.sin_addr = *((struct in_addr *)server_hostent->h_addr); |
| 61 | bzero(&server_addr.sin_zero, 8); |
| 62 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 63 | if (connect(wsi->sock, (struct sockaddr *)&server_addr, |
Andy Green | 6ee372f | 2012-04-09 15:09:01 +0800 | [diff] [blame] | 64 | sizeof(struct sockaddr)) == -1) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 65 | lwsl_debug("Connect failed\n"); |
Andy Green | 3fc2c65 | 2013-01-14 15:35:02 +0800 | [diff] [blame] | 66 | compatible_close(wsi->sock); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 67 | goto oom4; |
| 68 | } |
| 69 | |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 70 | lwsl_client("connected\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 71 | |
Andy Green | a690cd0 | 2013-02-09 12:25:31 +0800 | [diff] [blame] | 72 | if (lws_set_socket_options(context, wsi->sock)) { |
| 73 | lwsl_err("Failed to set wsi socket options\n"); |
| 74 | close(wsi->sock); |
| 75 | goto oom4; |
| 76 | } |
| 77 | |
Andy Green | dfb2304 | 2013-01-17 12:26:48 +0800 | [diff] [blame] | 78 | insert_wsi_socket_into_fds(context, wsi); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 79 | |
| 80 | /* we are connected to server, or proxy */ |
| 81 | |
| 82 | if (context->http_proxy_port) { |
| 83 | |
Andy Green | f54a94b | 2013-02-10 15:19:39 +0800 | [diff] [blame] | 84 | n = send(wsi->sock, context->service_buffer, plen, 0); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 85 | if (n < 0) { |
Andy Green | 3fc2c65 | 2013-01-14 15:35:02 +0800 | [diff] [blame] | 86 | compatible_close(wsi->sock); |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 87 | lwsl_debug("ERROR writing to proxy socket\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 88 | goto bail1; |
| 89 | } |
| 90 | |
| 91 | libwebsocket_set_timeout(wsi, |
David Galeano | c9f1ff8 | 2013-01-09 18:01:23 +0800 | [diff] [blame] | 92 | PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE, AWAITING_TIMEOUT); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 93 | |
| 94 | wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_PROXY_REPLY; |
| 95 | |
| 96 | return wsi; |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * provoke service to issue the handshake directly |
| 101 | * we need to do it this way because in the proxy case, this is the |
| 102 | * next state and executed only if and when we get a good proxy |
Andy Green | 73abc25 | 2013-01-13 11:05:30 +0800 | [diff] [blame] | 103 | * response inside the state machine... but notice in SSL case this |
| 104 | * may not have sent anything yet with 0 return, and won't until some |
| 105 | * many retries from main loop. To stop that becoming endless, |
| 106 | * cover with a timeout. |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 107 | */ |
| 108 | |
Andy Green | 73abc25 | 2013-01-13 11:05:30 +0800 | [diff] [blame] | 109 | libwebsocket_set_timeout(wsi, |
| 110 | PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE, AWAITING_TIMEOUT); |
| 111 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 112 | wsi->mode = LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE; |
| 113 | pfd.fd = wsi->sock; |
| 114 | pfd.revents = POLLIN; |
David Galeano | 36750b8 | 2013-01-09 16:17:04 +0800 | [diff] [blame] | 115 | |
| 116 | n = libwebsocket_service_fd(context, &pfd); |
| 117 | |
| 118 | if (n < 0) |
Andy Green | 3928f61 | 2012-07-20 12:58:38 +0800 | [diff] [blame] | 119 | goto oom4; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 120 | |
David Galeano | 36750b8 | 2013-01-09 16:17:04 +0800 | [diff] [blame] | 121 | if (n) /* returns 1 on failure after closing wsi */ |
| 122 | return NULL; |
| 123 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 124 | return wsi; |
| 125 | |
| 126 | oom4: |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 127 | free(wsi->u.hdr.ah); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 128 | bail1: |
| 129 | free(wsi); |
| 130 | |
| 131 | return NULL; |
| 132 | } |
| 133 | |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 134 | /** |
| 135 | * libwebsocket_client_connect() - Connect to another websocket server |
Peter Hinz | 56885f3 | 2011-03-02 22:03:47 +0000 | [diff] [blame] | 136 | * @context: Websocket context |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 137 | * @address: Remote server address, eg, "myserver.com" |
| 138 | * @port: Port to connect to on the remote server, eg, 80 |
| 139 | * @ssl_connection: 0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self |
| 140 | * signed certs |
| 141 | * @path: Websocket path on server |
| 142 | * @host: Hostname on server |
| 143 | * @origin: Socket origin name |
| 144 | * @protocol: Comma-separated list of protocols being asked for from |
| 145 | * the server, or just one. The server will pick the one it |
| 146 | * likes best. |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 147 | * @ietf_version_or_minus_one: -1 to ask to connect using the default, latest |
Andy Green | 6ee372f | 2012-04-09 15:09:01 +0800 | [diff] [blame] | 148 | * protocol supported, or the specific protocol ordinal |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 149 | * |
| 150 | * This function creates a connection to a remote server |
| 151 | */ |
| 152 | |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 153 | struct libwebsocket * |
Peter Hinz | 56885f3 | 2011-03-02 22:03:47 +0000 | [diff] [blame] | 154 | libwebsocket_client_connect(struct libwebsocket_context *context, |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 155 | const char *address, |
| 156 | int port, |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 157 | int ssl_connection, |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 158 | const char *path, |
| 159 | const char *host, |
| 160 | const char *origin, |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 161 | const char *protocol, |
| 162 | int ietf_version_or_minus_one) |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 163 | { |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 164 | struct libwebsocket *wsi; |
| 165 | int n; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 166 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 167 | int m; |
| 168 | struct libwebsocket_extension *ext; |
| 169 | int handled; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 170 | #endif |
| 171 | |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 172 | #ifndef LWS_OPENSSL_SUPPORT |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 173 | if (ssl_connection) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 174 | lwsl_err("libwebsockets not configured for ssl\n"); |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 175 | return NULL; |
| 176 | } |
| 177 | #endif |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 178 | |
Aaron Zinman | 4550f1d | 2013-01-10 12:35:18 +0800 | [diff] [blame] | 179 | wsi = (struct libwebsocket *) malloc(sizeof(struct libwebsocket)); |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 180 | if (wsi == NULL) |
| 181 | goto bail1; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 182 | |
Darin Willits | c19456f | 2011-02-14 17:52:39 +0000 | [diff] [blame] | 183 | memset(wsi, 0, sizeof *wsi); |
| 184 | |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 185 | /* -1 means just use latest supported */ |
| 186 | |
| 187 | if (ietf_version_or_minus_one == -1) |
Andy Green | 193306c | 2011-02-26 11:08:46 +0000 | [diff] [blame] | 188 | ietf_version_or_minus_one = SPEC_LATEST_SUPPORTED; |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 189 | |
| 190 | wsi->ietf_spec_revision = ietf_version_or_minus_one; |
Andy Green | 623a98d | 2013-01-21 11:04:23 +0800 | [diff] [blame] | 191 | wsi->u.hdr.name_buffer_pos = 0; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 192 | wsi->user_space = NULL; |
| 193 | wsi->state = WSI_STATE_CLIENT_UNCONNECTED; |
Andy Green | 927eb7b | 2011-02-01 08:52:55 +0000 | [diff] [blame] | 194 | wsi->protocol = NULL; |
Andy Green | a71eafc | 2011-02-14 17:59:43 +0000 | [diff] [blame] | 195 | wsi->pending_timeout = NO_PENDING_TIMEOUT; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 196 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | d6e0911 | 2011-03-05 16:12:15 +0000 | [diff] [blame] | 197 | wsi->count_active_extensions = 0; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 198 | #endif |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 199 | #ifdef LWS_OPENSSL_SUPPORT |
| 200 | wsi->use_ssl = ssl_connection; |
| 201 | #endif |
| 202 | |
Andy Green | 16ab318 | 2013-02-10 18:02:31 +0800 | [diff] [blame] | 203 | if (lws_allocate_header_table(wsi)) |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 204 | goto bail; |
| 205 | |
| 206 | /* |
| 207 | * we're not necessarily in a position to action these right away, |
| 208 | * stash them... we only need during connect phase so u.hdr is fine |
| 209 | */ |
| 210 | wsi->u.hdr.c_port = port; |
| 211 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, address)) |
| 212 | goto bail1; |
| 213 | |
| 214 | /* these only need u.hdr lifetime as well */ |
| 215 | |
| 216 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_URI, path)) |
| 217 | goto bail1; |
| 218 | |
| 219 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_HOST, host)) |
| 220 | goto bail1; |
| 221 | |
| 222 | if (origin) |
| 223 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ORIGIN, origin)) |
| 224 | goto bail1; |
| 225 | /* |
| 226 | * this is a list of protocols we tell the server we're okay with |
| 227 | * stash it for later when we compare server response with it |
| 228 | */ |
| 229 | if (protocol) |
| 230 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS, protocol)) |
| 231 | goto bail1; |
| 232 | |
| 233 | wsi->protocol = &context->protocols[0]; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 234 | |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 235 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 236 | /* |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 237 | * Check with each extension if it is able to route and proxy this |
| 238 | * connection for us. For example, an extension like x-google-mux |
| 239 | * can handle this and then we don't need an actual socket for this |
| 240 | * connection. |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 241 | */ |
| 242 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 243 | handled = 0; |
| 244 | ext = context->extensions; |
| 245 | n = 0; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 246 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 247 | while (ext && ext->callback && !handled) { |
| 248 | m = ext->callback(context, ext, wsi, |
| 249 | LWS_EXT_CALLBACK_CAN_PROXY_CLIENT_CONNECTION, |
| 250 | (void *)(long)n, (void *)address, port); |
| 251 | if (m) |
| 252 | handled = 1; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 253 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 254 | ext++; |
| 255 | n++; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 256 | } |
| 257 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 258 | if (handled) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 259 | lwsl_client("libwebsocket_client_connect: ext handling conn\n"); |
Andy Green | 5b9a4c0 | 2011-01-28 09:39:29 +0000 | [diff] [blame] | 260 | |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 261 | libwebsocket_set_timeout(wsi, |
David Galeano | c9f1ff8 | 2013-01-09 18:01:23 +0800 | [diff] [blame] | 262 | PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE, AWAITING_TIMEOUT); |
Andy Green | 5b9a4c0 | 2011-01-28 09:39:29 +0000 | [diff] [blame] | 263 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 264 | wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_EXTENSION_CONNECT; |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 265 | return wsi; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 266 | } |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 267 | #endif |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 268 | lwsl_client("libwebsocket_client_connect: direct conn\n"); |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 269 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 270 | return __libwebsocket_client_connect_2(context, wsi); |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 271 | |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 272 | bail1: |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame^] | 273 | free(wsi->u.hdr.ah); |
| 274 | bail: |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 275 | free(wsi); |
| 276 | |
| 277 | return NULL; |
| 278 | } |
David Brooks | 2c60d95 | 2012-04-20 12:19:01 +0800 | [diff] [blame] | 279 | |
| 280 | |
| 281 | /** |
| 282 | * libwebsocket_client_connect_extended() - Connect to another websocket server |
| 283 | * @context: Websocket context |
| 284 | * @address: Remote server address, eg, "myserver.com" |
| 285 | * @port: Port to connect to on the remote server, eg, 80 |
| 286 | * @ssl_connection: 0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self |
| 287 | * signed certs |
| 288 | * @path: Websocket path on server |
| 289 | * @host: Hostname on server |
| 290 | * @origin: Socket origin name |
| 291 | * @protocol: Comma-separated list of protocols being asked for from |
| 292 | * the server, or just one. The server will pick the one it |
| 293 | * likes best. |
| 294 | * @ietf_version_or_minus_one: -1 to ask to connect using the default, latest |
| 295 | * protocol supported, or the specific protocol ordinal |
| 296 | * @userdata: Pre-allocated user data |
| 297 | * |
| 298 | * This function creates a connection to a remote server |
| 299 | */ |
| 300 | |
| 301 | struct libwebsocket * |
| 302 | libwebsocket_client_connect_extended(struct libwebsocket_context *context, |
| 303 | const char *address, |
| 304 | int port, |
| 305 | int ssl_connection, |
| 306 | const char *path, |
| 307 | const char *host, |
| 308 | const char *origin, |
| 309 | const char *protocol, |
| 310 | int ietf_version_or_minus_one, |
| 311 | void *userdata) |
| 312 | { |
| 313 | struct libwebsocket *ws = |
| 314 | libwebsocket_client_connect(context, address, port, ssl_connection, path, host, origin, protocol, ietf_version_or_minus_one) ; |
| 315 | |
| 316 | if (ws && !ws->user_space && userdata) |
| 317 | ws->user_space = userdata ; |
| 318 | |
| 319 | return ws ; |
| 320 | } |