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  118. <li><strong>nixio.TLSSocket</strong></li>
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  138. <h1>Object Instance <code>nixio.TLSSocket</code></h1>
  139. <p>
  140. TLS Socket Object.
  141. TLS Sockets contain the underlying socket and context in the fields
  142. "socket" and "context".</p>
  143. <h2>Functions</h2>
  144. <table class="function_list">
  145. <tr>
  146. <td class="name" nowrap><a href="#TLSSocket.accept">TLSSocket:accept</a>&nbsp;()</td>
  147. <td class="summary">
  148. Wait for a TLS handshake from a client.</td>
  149. </tr>
  150. <tr>
  151. <td class="name" nowrap><a href="#TLSSocket.connect">TLSSocket:connect</a>&nbsp;()</td>
  152. <td class="summary">
  153. Initiate the TLS handshake as client with the server.</td>
  154. </tr>
  155. <tr>
  156. <td class="name" nowrap><a href="#TLSSocket.read ">TLSSocket:read </a>&nbsp;(length)</td>
  157. <td class="summary">
  158. Receive a message on the socket (This is an alias for recv).</td>
  159. </tr>
  160. <tr>
  161. <td class="name" nowrap><a href="#TLSSocket.recv">TLSSocket:recv</a>&nbsp;(length)</td>
  162. <td class="summary">
  163. Receive a message on the socket.</td>
  164. </tr>
  165. <tr>
  166. <td class="name" nowrap><a href="#TLSSocket.send">TLSSocket:send</a>&nbsp;(buffer, offset, length)</td>
  167. <td class="summary">
  168. Send a message to the socket.</td>
  169. </tr>
  170. <tr>
  171. <td class="name" nowrap><a href="#TLSSocket.shutdown">TLSSocket:shutdown</a>&nbsp;()</td>
  172. <td class="summary">
  173. Shut down the TLS connection.</td>
  174. </tr>
  175. <tr>
  176. <td class="name" nowrap><a href="#TLSSocket.write">TLSSocket:write</a>&nbsp;(buffer, offset, length)</td>
  177. <td class="summary">
  178. Send a message on the socket (This is an alias for send).</td>
  179. </tr>
  180. </table>
  181. <br/>
  182. <br/>
  183. <h2><a name="functions"></a>Functions</h2>
  184. <dl class="function">
  185. <dt><a name="TLSSocket.accept"></a><strong>TLSSocket:accept</strong>&nbsp;()</dt>
  186. <dd>
  187. Wait for a TLS handshake from a client.
  188. <h3>Usage</h3>
  189. <ul>
  190. <li>This function calls SSL_accept().
  191. <li>You have to call either connect or accept before transmitting data.
  192. </ul>
  193. <h3>Return value:</h3>
  194. true
  195. <h3>See also:</h3>
  196. <ul>
  197. <li><a href="#TLSSocket.connect">
  198. TLSSocket:connect
  199. </a>
  200. </ul>
  201. </dd>
  202. <dt><a name="TLSSocket.connect"></a><strong>TLSSocket:connect</strong>&nbsp;()</dt>
  203. <dd>
  204. Initiate the TLS handshake as client with the server.
  205. <h3>Usage</h3>
  206. <ul>
  207. <li>This function calls SSL_connect().
  208. <li>You have to call either connect or accept before transmitting data.
  209. </ul>
  210. <h3>Return value:</h3>
  211. true
  212. <h3>See also:</h3>
  213. <ul>
  214. <li><a href="#TLSSocket.accept">
  215. TLSSocket:accept
  216. </a>
  217. </ul>
  218. </dd>
  219. <dt><a name="TLSSocket.read "></a><strong>TLSSocket:read </strong>&nbsp;(length)</dt>
  220. <dd>
  221. Receive a message on the socket (This is an alias for recv).
  222. See the recv description for more details.
  223. <h3>Parameters</h3>
  224. <ul>
  225. <li>
  226. length: Amount of data to read (in Bytes).
  227. </li>
  228. </ul>
  229. <h3>Return value:</h3>
  230. buffer containing data successfully read
  231. <h3>See also:</h3>
  232. <ul>
  233. <li><a href="#TLSSocket.recv">
  234. TLSSocket:recv
  235. </a>
  236. </ul>
  237. </dd>
  238. <dt><a name="TLSSocket.recv"></a><strong>TLSSocket:recv</strong>&nbsp;(length)</dt>
  239. <dd>
  240. Receive a message on the socket.
  241. <h3>Parameters</h3>
  242. <ul>
  243. <li>
  244. length: Amount of data to read (in Bytes).
  245. </li>
  246. </ul>
  247. <h3>Usage</h3>
  248. <ul>
  249. <li>This function calls SSL_read().
  250. <li><strong>Warning:</strong> It is not guaranteed that all requested data
  251. is read at once.
  252. You have to check the return value - the length of the buffer actually read -
  253. or use the safe IO functions in the high-level IO utility module.
  254. <li>The length of the return buffer is limited by the (compile time)
  255. nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
  256. Any read request greater than that will be safely truncated to this value.
  257. </ul>
  258. <h3>Return value:</h3>
  259. buffer containing data successfully read
  260. </dd>
  261. <dt><a name="TLSSocket.send"></a><strong>TLSSocket:send</strong>&nbsp;(buffer, offset, length)</dt>
  262. <dd>
  263. Send a message to the socket.
  264. <h3>Parameters</h3>
  265. <ul>
  266. <li>
  267. buffer: Buffer holding the data to be written.
  268. </li>
  269. <li>
  270. offset: Offset to start reading the buffer from. (optional)
  271. </li>
  272. <li>
  273. length: Length of chunk to read from the buffer. (optional)
  274. </li>
  275. </ul>
  276. <h3>Usage</h3>
  277. <ul>
  278. <li>This function calls SSL_write().
  279. <li><strong>Warning:</strong> It is not guaranteed that all data
  280. in the buffer is written at once.
  281. You have to check the return value - the number of bytes actually written -
  282. or use the safe IO functions in the high-level IO utility module.
  283. <li>Unlike standard Lua indexing the lowest offset and default is 0.
  284. </ul>
  285. <h3>Return value:</h3>
  286. number of bytes written
  287. </dd>
  288. <dt><a name="TLSSocket.shutdown"></a><strong>TLSSocket:shutdown</strong>&nbsp;()</dt>
  289. <dd>
  290. Shut down the TLS connection.
  291. <h3>Usage:</h3>
  292. This function calls SSL_shutdown().
  293. <h3>Return value:</h3>
  294. true
  295. </dd>
  296. <dt><a name="TLSSocket.write"></a><strong>TLSSocket:write</strong>&nbsp;(buffer, offset, length)</dt>
  297. <dd>
  298. Send a message on the socket (This is an alias for send).
  299. See the send description for a detailed description.
  300. <h3>Parameters</h3>
  301. <ul>
  302. <li>
  303. buffer: Buffer holding the data to be written.
  304. </li>
  305. <li>
  306. offset: Offset to start reading the buffer from. (optional)
  307. </li>
  308. <li>
  309. length: Length of chunk to read from the buffer. (optional)
  310. </li>
  311. </ul>
  312. <h3>Return value:</h3>
  313. number of bytes written
  314. <h3>See also:</h3>
  315. <ul>
  316. <li><a href="#TLSSocket.send">
  317. TLSSocket:send
  318. </a>
  319. </ul>
  320. </dd>
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