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 | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 31 | /* |
| 32 | * (will overwrite existing pointer, |
| 33 | * leaving old string/frag there but unreferenced) |
| 34 | */ |
| 35 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, |
| 36 | context->http_proxy_address)) |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 37 | goto oom4; |
| 38 | wsi->u.hdr.c_port = context->http_proxy_port; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | /* |
| 42 | * prepare the actual connection (to the proxy, if any) |
| 43 | */ |
| 44 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 45 | ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS); |
Andy Green | 66a16f3 | 2011-05-24 22:07:45 +0100 | [diff] [blame] | 46 | |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 47 | lwsl_client("__libwebsocket_client_connect_2: address %s\n", ads); |
| 48 | |
| 49 | server_hostent = gethostbyname(ads); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 50 | if (server_hostent == NULL) { |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 51 | lwsl_err("Unable to get host name from %s\n", ads); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 52 | goto oom4; |
| 53 | } |
| 54 | |
| 55 | wsi->sock = socket(AF_INET, SOCK_STREAM, 0); |
| 56 | |
| 57 | if (wsi->sock < 0) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 58 | lwsl_warn("Unable to open socket\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 59 | goto oom4; |
| 60 | } |
| 61 | |
| 62 | server_addr.sin_family = AF_INET; |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 63 | server_addr.sin_port = htons(wsi->u.hdr.c_port); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 64 | server_addr.sin_addr = *((struct in_addr *)server_hostent->h_addr); |
| 65 | bzero(&server_addr.sin_zero, 8); |
| 66 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 67 | if (connect(wsi->sock, (struct sockaddr *)&server_addr, |
Andy Green | 6ee372f | 2012-04-09 15:09:01 +0800 | [diff] [blame] | 68 | sizeof(struct sockaddr)) == -1) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 69 | lwsl_debug("Connect failed\n"); |
Andy Green | 3fc2c65 | 2013-01-14 15:35:02 +0800 | [diff] [blame] | 70 | compatible_close(wsi->sock); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 71 | goto oom4; |
| 72 | } |
| 73 | |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 74 | lwsl_client("connected\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 75 | |
Andy Green | a690cd0 | 2013-02-09 12:25:31 +0800 | [diff] [blame] | 76 | if (lws_set_socket_options(context, wsi->sock)) { |
| 77 | lwsl_err("Failed to set wsi socket options\n"); |
| 78 | close(wsi->sock); |
| 79 | goto oom4; |
| 80 | } |
| 81 | |
Andy Green | dfb2304 | 2013-01-17 12:26:48 +0800 | [diff] [blame] | 82 | insert_wsi_socket_into_fds(context, wsi); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 83 | |
| 84 | /* we are connected to server, or proxy */ |
| 85 | |
| 86 | if (context->http_proxy_port) { |
| 87 | |
Andy Green | f54a94b | 2013-02-10 15:19:39 +0800 | [diff] [blame] | 88 | n = send(wsi->sock, context->service_buffer, plen, 0); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 89 | if (n < 0) { |
Andy Green | 3fc2c65 | 2013-01-14 15:35:02 +0800 | [diff] [blame] | 90 | compatible_close(wsi->sock); |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 91 | lwsl_debug("ERROR writing to proxy socket\n"); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 92 | goto bail1; |
| 93 | } |
| 94 | |
| 95 | libwebsocket_set_timeout(wsi, |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 96 | PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE, |
| 97 | AWAITING_TIMEOUT); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 98 | |
| 99 | wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_PROXY_REPLY; |
| 100 | |
| 101 | return wsi; |
| 102 | } |
| 103 | |
| 104 | /* |
| 105 | * provoke service to issue the handshake directly |
| 106 | * we need to do it this way because in the proxy case, this is the |
| 107 | * 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] | 108 | * response inside the state machine... but notice in SSL case this |
| 109 | * may not have sent anything yet with 0 return, and won't until some |
| 110 | * many retries from main loop. To stop that becoming endless, |
| 111 | * cover with a timeout. |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 112 | */ |
| 113 | |
Andy Green | 73abc25 | 2013-01-13 11:05:30 +0800 | [diff] [blame] | 114 | libwebsocket_set_timeout(wsi, |
| 115 | PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE, AWAITING_TIMEOUT); |
| 116 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 117 | wsi->mode = LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE; |
| 118 | pfd.fd = wsi->sock; |
| 119 | pfd.revents = POLLIN; |
David Galeano | 36750b8 | 2013-01-09 16:17:04 +0800 | [diff] [blame] | 120 | |
| 121 | n = libwebsocket_service_fd(context, &pfd); |
| 122 | |
| 123 | if (n < 0) |
Andy Green | 3928f61 | 2012-07-20 12:58:38 +0800 | [diff] [blame] | 124 | goto oom4; |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 125 | |
David Galeano | 36750b8 | 2013-01-09 16:17:04 +0800 | [diff] [blame] | 126 | if (n) /* returns 1 on failure after closing wsi */ |
| 127 | return NULL; |
| 128 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 129 | return wsi; |
| 130 | |
| 131 | oom4: |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 132 | free(wsi->u.hdr.ah); |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 133 | bail1: |
| 134 | free(wsi); |
| 135 | |
| 136 | return NULL; |
| 137 | } |
| 138 | |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 139 | /** |
| 140 | * libwebsocket_client_connect() - Connect to another websocket server |
Peter Hinz | 56885f3 | 2011-03-02 22:03:47 +0000 | [diff] [blame] | 141 | * @context: Websocket context |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 142 | * @address: Remote server address, eg, "myserver.com" |
| 143 | * @port: Port to connect to on the remote server, eg, 80 |
| 144 | * @ssl_connection: 0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self |
| 145 | * signed certs |
| 146 | * @path: Websocket path on server |
| 147 | * @host: Hostname on server |
| 148 | * @origin: Socket origin name |
| 149 | * @protocol: Comma-separated list of protocols being asked for from |
| 150 | * the server, or just one. The server will pick the one it |
| 151 | * likes best. |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 152 | * @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] | 153 | * protocol supported, or the specific protocol ordinal |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 154 | * |
| 155 | * This function creates a connection to a remote server |
| 156 | */ |
| 157 | |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 158 | struct libwebsocket * |
Peter Hinz | 56885f3 | 2011-03-02 22:03:47 +0000 | [diff] [blame] | 159 | libwebsocket_client_connect(struct libwebsocket_context *context, |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 160 | const char *address, |
| 161 | int port, |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 162 | int ssl_connection, |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 163 | const char *path, |
| 164 | const char *host, |
| 165 | const char *origin, |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 166 | const char *protocol, |
| 167 | int ietf_version_or_minus_one) |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 168 | { |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 169 | struct libwebsocket *wsi; |
| 170 | int n; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 171 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 172 | int m; |
| 173 | struct libwebsocket_extension *ext; |
| 174 | int handled; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 175 | #endif |
| 176 | |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 177 | #ifndef LWS_OPENSSL_SUPPORT |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 178 | if (ssl_connection) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 179 | lwsl_err("libwebsockets not configured for ssl\n"); |
Andy Green | 90c7cbc | 2011-01-27 06:26:52 +0000 | [diff] [blame] | 180 | return NULL; |
| 181 | } |
| 182 | #endif |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 183 | |
Aaron Zinman | 4550f1d | 2013-01-10 12:35:18 +0800 | [diff] [blame] | 184 | wsi = (struct libwebsocket *) malloc(sizeof(struct libwebsocket)); |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 185 | if (wsi == NULL) |
| 186 | goto bail1; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 187 | |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 188 | memset(wsi, 0, sizeof(*wsi)); |
Darin Willits | c19456f | 2011-02-14 17:52:39 +0000 | [diff] [blame] | 189 | |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 190 | /* -1 means just use latest supported */ |
| 191 | |
| 192 | if (ietf_version_or_minus_one == -1) |
Andy Green | 193306c | 2011-02-26 11:08:46 +0000 | [diff] [blame] | 193 | ietf_version_or_minus_one = SPEC_LATEST_SUPPORTED; |
Andy Green | bfb051f | 2011-02-09 08:49:14 +0000 | [diff] [blame] | 194 | |
| 195 | wsi->ietf_spec_revision = ietf_version_or_minus_one; |
Andy Green | 623a98d | 2013-01-21 11:04:23 +0800 | [diff] [blame] | 196 | wsi->u.hdr.name_buffer_pos = 0; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 197 | wsi->user_space = NULL; |
| 198 | wsi->state = WSI_STATE_CLIENT_UNCONNECTED; |
Andy Green | 927eb7b | 2011-02-01 08:52:55 +0000 | [diff] [blame] | 199 | wsi->protocol = NULL; |
Andy Green | a71eafc | 2011-02-14 17:59:43 +0000 | [diff] [blame] | 200 | wsi->pending_timeout = NO_PENDING_TIMEOUT; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 201 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | d6e0911 | 2011-03-05 16:12:15 +0000 | [diff] [blame] | 202 | wsi->count_active_extensions = 0; |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 203 | #endif |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 204 | #ifdef LWS_OPENSSL_SUPPORT |
| 205 | wsi->use_ssl = ssl_connection; |
| 206 | #endif |
| 207 | |
Andy Green | 16ab318 | 2013-02-10 18:02:31 +0800 | [diff] [blame] | 208 | if (lws_allocate_header_table(wsi)) |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 209 | goto bail; |
| 210 | |
| 211 | /* |
| 212 | * we're not necessarily in a position to action these right away, |
| 213 | * stash them... we only need during connect phase so u.hdr is fine |
| 214 | */ |
| 215 | wsi->u.hdr.c_port = port; |
| 216 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, address)) |
| 217 | goto bail1; |
| 218 | |
| 219 | /* these only need u.hdr lifetime as well */ |
| 220 | |
| 221 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_URI, path)) |
| 222 | goto bail1; |
| 223 | |
| 224 | if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_HOST, host)) |
| 225 | goto bail1; |
| 226 | |
| 227 | if (origin) |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 228 | if (lws_hdr_simple_create(wsi, |
| 229 | _WSI_TOKEN_CLIENT_ORIGIN, origin)) |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 230 | goto bail1; |
| 231 | /* |
| 232 | * this is a list of protocols we tell the server we're okay with |
| 233 | * stash it for later when we compare server response with it |
| 234 | */ |
| 235 | if (protocol) |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 236 | if (lws_hdr_simple_create(wsi, |
| 237 | _WSI_TOKEN_CLIENT_SENT_PROTOCOLS, protocol)) |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 238 | goto bail1; |
| 239 | |
| 240 | wsi->protocol = &context->protocols[0]; |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 241 | |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 242 | #ifndef LWS_NO_EXTENSIONS |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 243 | /* |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 244 | * Check with each extension if it is able to route and proxy this |
| 245 | * connection for us. For example, an extension like x-google-mux |
| 246 | * can handle this and then we don't need an actual socket for this |
| 247 | * connection. |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 248 | */ |
| 249 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 250 | handled = 0; |
| 251 | ext = context->extensions; |
| 252 | n = 0; |
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 | while (ext && ext->callback && !handled) { |
| 255 | m = ext->callback(context, ext, wsi, |
| 256 | LWS_EXT_CALLBACK_CAN_PROXY_CLIENT_CONNECTION, |
| 257 | (void *)(long)n, (void *)address, port); |
| 258 | if (m) |
| 259 | handled = 1; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 260 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 261 | ext++; |
| 262 | n++; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 263 | } |
| 264 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 265 | if (handled) { |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 266 | lwsl_client("libwebsocket_client_connect: ext handling conn\n"); |
Andy Green | 5b9a4c0 | 2011-01-28 09:39:29 +0000 | [diff] [blame] | 267 | |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 268 | libwebsocket_set_timeout(wsi, |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 269 | PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE, |
| 270 | AWAITING_TIMEOUT); |
Andy Green | 5b9a4c0 | 2011-01-28 09:39:29 +0000 | [diff] [blame] | 271 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 272 | wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_EXTENSION_CONNECT; |
Andy Green | be93fef | 2011-02-14 20:25:43 +0000 | [diff] [blame] | 273 | return wsi; |
Andy Green | 9659f37 | 2011-01-27 22:01:43 +0000 | [diff] [blame] | 274 | } |
Andy Green | 3182ece | 2013-01-20 17:08:31 +0800 | [diff] [blame] | 275 | #endif |
Andy Green | 43db045 | 2013-01-10 19:50:35 +0800 | [diff] [blame] | 276 | lwsl_client("libwebsocket_client_connect: direct conn\n"); |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 277 | |
Andy Green | a41314f | 2011-05-23 10:00:03 +0100 | [diff] [blame] | 278 | return __libwebsocket_client_connect_2(context, wsi); |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 279 | |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 280 | bail1: |
Andy Green | e77fb80 | 2013-02-11 13:04:45 +0800 | [diff] [blame] | 281 | free(wsi->u.hdr.ah); |
| 282 | bail: |
Andy Green | 4739e5c | 2011-01-22 12:51:57 +0000 | [diff] [blame] | 283 | free(wsi); |
| 284 | |
| 285 | return NULL; |
| 286 | } |
David Brooks | 2c60d95 | 2012-04-20 12:19:01 +0800 | [diff] [blame] | 287 | |
| 288 | |
| 289 | /** |
| 290 | * libwebsocket_client_connect_extended() - Connect to another websocket server |
| 291 | * @context: Websocket context |
| 292 | * @address: Remote server address, eg, "myserver.com" |
| 293 | * @port: Port to connect to on the remote server, eg, 80 |
| 294 | * @ssl_connection: 0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self |
| 295 | * signed certs |
| 296 | * @path: Websocket path on server |
| 297 | * @host: Hostname on server |
| 298 | * @origin: Socket origin name |
| 299 | * @protocol: Comma-separated list of protocols being asked for from |
| 300 | * the server, or just one. The server will pick the one it |
| 301 | * likes best. |
| 302 | * @ietf_version_or_minus_one: -1 to ask to connect using the default, latest |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 303 | * protocol supported, or the specific protocol ordinal |
David Brooks | 2c60d95 | 2012-04-20 12:19:01 +0800 | [diff] [blame] | 304 | * @userdata: Pre-allocated user data |
| 305 | * |
| 306 | * This function creates a connection to a remote server |
| 307 | */ |
| 308 | |
| 309 | struct libwebsocket * |
| 310 | libwebsocket_client_connect_extended(struct libwebsocket_context *context, |
| 311 | const char *address, |
| 312 | int port, |
| 313 | int ssl_connection, |
| 314 | const char *path, |
| 315 | const char *host, |
| 316 | const char *origin, |
| 317 | const char *protocol, |
| 318 | int ietf_version_or_minus_one, |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 319 | void *userdata) |
David Brooks | 2c60d95 | 2012-04-20 12:19:01 +0800 | [diff] [blame] | 320 | { |
| 321 | struct libwebsocket *ws = |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 322 | libwebsocket_client_connect(context, address, port, |
| 323 | ssl_connection, path, host, origin, protocol, |
| 324 | ietf_version_or_minus_one); |
David Brooks | 2c60d95 | 2012-04-20 12:19:01 +0800 | [diff] [blame] | 325 | |
| 326 | if (ws && !ws->user_space && userdata) |
| 327 | ws->user_space = userdata ; |
| 328 | |
| 329 | return ws ; |
Andy Green | b5b2319 | 2013-02-11 17:13:32 +0800 | [diff] [blame^] | 330 | } |