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<div id="projectbrief">Set of algorithms implemented in C.</div>
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<a href="#define-members">Macros</a> &#124;
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<p>Client side implementation of UDP client-server model.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;arpa/inet.h&gt;</code><br />
<code>#include &lt;netdb.h&gt;</code><br />
<code>#include &lt;netinet/in.h&gt;</code><br />
<code>#include &lt;sys/socket.h&gt;</code><br />
<code>#include &lt;sys/types.h&gt;</code><br />
<code>#include &lt;unistd.h&gt;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
<code>#include &lt;stdlib.h&gt;</code><br />
<code>#include &lt;string.h&gt;</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for udp_client.c:</div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="define-members" name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:a614217d263be1fb1a5f76e2ff7be19a2"><td class="memItemLeft" align="right" valign="top"><a id="a614217d263be1fb1a5f76e2ff7be19a2" name="a614217d263be1fb1a5f76e2ff7be19a2"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>PORT</b>&#160;&#160;&#160;8080</td></tr>
<tr class="memdesc:a614217d263be1fb1a5f76e2ff7be19a2"><td class="mdescLeft">&#160;</td><td class="mdescRight">port number to connect to <br /></td></tr>
<tr class="separator:a614217d263be1fb1a5f76e2ff7be19a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3e937c42922f7601edb17b747602c471"><td class="memItemLeft" align="right" valign="top"><a id="a3e937c42922f7601edb17b747602c471" name="a3e937c42922f7601edb17b747602c471"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>MAXLINE</b>&#160;&#160;&#160;1024</td></tr>
<tr class="memdesc:a3e937c42922f7601edb17b747602c471"><td class="mdescLeft">&#160;</td><td class="mdescRight">maximum characters per line <br /></td></tr>
<tr class="separator:a3e937c42922f7601edb17b747602c471"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/de6/udp__client_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Driver code. <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Client side implementation of UDP client-server model. </p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/TheShubham99" target="_blank">TheShubham99</a> </dd>
<dd>
<a href="https://github.com/kvedala" target="_blank">Krishna Vedala</a> </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="../../d8/dca/udp__server_8c.html" title="Server side implementation of UDP client-server model.">client_server/udp_server.c</a> </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="ae66f6b31b5ad750f1fe042a706a4e3d4" name="ae66f6b31b5ad750f1fe042a706a4e3d4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&#160;</a></span>main()</h2>
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<td class="memname">int main </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
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<p>Driver code. </p>
<div class="fragment"><div class="line"><span class="lineno"> 36</span>{</div>
<div class="line"><span class="lineno"> 37</span><span class="preprocessor">#ifdef _WIN32</span></div>
<div class="line"><span class="lineno"> 38</span> <span class="comment">// when using winsock2.h, startup required</span></div>
<div class="line"><span class="lineno"> 39</span> WSADATA wsData;</div>
<div class="line"><span class="lineno"> 40</span> <span class="keywordflow">if</span> (WSAStartup(MAKEWORD(2, 2), &amp;wsData) != 0)</div>
<div class="line"><span class="lineno"> 41</span> {</div>
<div class="line"><span class="lineno"> 42</span> perror(<span class="stringliteral">&quot;WSA Startup error: \n&quot;</span>);</div>
<div class="line"><span class="lineno"> 43</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 44</span> }</div>
<div class="line"><span class="lineno"> 45</span> </div>
<div class="line"><span class="lineno"> 46</span> atexit(cleanup); <span class="comment">// register at-exit function</span></div>
<div class="line"><span class="lineno"> 47</span><span class="preprocessor">#endif</span></div>
<div class="line"><span class="lineno"> 48</span> </div>
<div class="line"><span class="lineno"> 49</span> <span class="keywordtype">int</span> sockfd;</div>
<div class="line"><span class="lineno"> 50</span> <span class="keywordtype">char</span> <a class="code hl_struct" href="../../dd/da2/structbuffer.html">buffer</a>[<a class="code hl_define" href="../../da/de6/udp__client_8c.html#a3e937c42922f7601edb17b747602c471">MAXLINE</a>];</div>
<div class="line"><span class="lineno"> 51</span> <span class="keywordtype">char</span> *hello = <span class="stringliteral">&quot;Hello from client&quot;</span>;</div>
<div class="line"><span class="lineno"> 52</span> <span class="keyword">struct </span>sockaddr_in servaddr;</div>
<div class="line"><span class="lineno"> 53</span> </div>
<div class="line"><span class="lineno"> 54</span> <span class="comment">// Creating socket file descriptor</span></div>
<div class="line"><span class="lineno"> 55</span> <span class="keywordflow">if</span> ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) &lt; 0)</div>
<div class="line"><span class="lineno"> 56</span> {</div>
<div class="line"><span class="lineno"> 57</span> perror(<span class="stringliteral">&quot;socket creation failed&quot;</span>);</div>
<div class="line"><span class="lineno"> 58</span> exit(EXIT_FAILURE);</div>
<div class="line"><span class="lineno"> 59</span> }</div>
<div class="line"><span class="lineno"> 60</span> </div>
<div class="line"><span class="lineno"> 61</span> memset(&amp;servaddr, 0, <span class="keyword">sizeof</span>(servaddr));</div>
<div class="line"><span class="lineno"> 62</span> </div>
<div class="line"><span class="lineno"> 63</span> <span class="comment">// Filling server information</span></div>
<div class="line"><span class="lineno"> 64</span> servaddr.sin_family = AF_INET;</div>
<div class="line"><span class="lineno"> 65</span> servaddr.sin_port = htons(<a class="code hl_define" href="../../da/de6/udp__client_8c.html#a614217d263be1fb1a5f76e2ff7be19a2">PORT</a>);</div>
<div class="line"><span class="lineno"> 66</span> servaddr.sin_addr.s_addr = INADDR_ANY;</div>
<div class="line"><span class="lineno"> 67</span> </div>
<div class="line"><span class="lineno"> 68</span> <span class="keywordtype">int</span> n;</div>
<div class="line"><span class="lineno"> 69</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len;</div>
<div class="line"><span class="lineno"> 70</span> </div>
<div class="line"><span class="lineno"> 71</span> sendto(sockfd, (<span class="keyword">const</span> <span class="keywordtype">char</span> *)hello, strlen(hello), 0,</div>
<div class="line"><span class="lineno"> 72</span> (<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr *)&amp;servaddr, <span class="keyword">sizeof</span>(servaddr));</div>
<div class="line"><span class="lineno"> 73</span> printf(<span class="stringliteral">&quot;Hello message sent.\n&quot;</span>);</div>
<div class="line"><span class="lineno"> 74</span> </div>
<div class="line"><span class="lineno"> 75</span> n = recvfrom(sockfd, (<span class="keywordtype">char</span> *)<a class="code hl_struct" href="../../dd/da2/structbuffer.html">buffer</a>, <a class="code hl_define" href="../../da/de6/udp__client_8c.html#a3e937c42922f7601edb17b747602c471">MAXLINE</a>, MSG_WAITALL,</div>
<div class="line"><span class="lineno"> 76</span> (<span class="keyword">struct</span> sockaddr *)&amp;servaddr, &amp;len);</div>
<div class="line"><span class="lineno"> 77</span> <a class="code hl_struct" href="../../dd/da2/structbuffer.html">buffer</a>[n] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><span class="lineno"> 78</span> printf(<span class="stringliteral">&quot;Server : %s\n&quot;</span>, <a class="code hl_struct" href="../../dd/da2/structbuffer.html">buffer</a>);</div>
<div class="line"><span class="lineno"> 79</span> </div>
<div class="line"><span class="lineno"> 80</span> close(sockfd);</div>
<div class="line"><span class="lineno"> 81</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 82</span>}</div>
<div class="ttc" id="astructbuffer_html"><div class="ttname"><a href="../../dd/da2/structbuffer.html">buffer</a></div><div class="ttdoc">struct used to store character in certain times</div><div class="ttdef"><b>Definition:</b> min_printf.h:31</div></div>
<div class="ttc" id="audp__client_8c_html_a3e937c42922f7601edb17b747602c471"><div class="ttname"><a href="../../da/de6/udp__client_8c.html#a3e937c42922f7601edb17b747602c471">MAXLINE</a></div><div class="ttdeci">#define MAXLINE</div><div class="ttdoc">maximum characters per line</div><div class="ttdef"><b>Definition:</b> udp_client.c:27</div></div>
<div class="ttc" id="audp__client_8c_html_a614217d263be1fb1a5f76e2ff7be19a2"><div class="ttname"><a href="../../da/de6/udp__client_8c.html#a614217d263be1fb1a5f76e2ff7be19a2">PORT</a></div><div class="ttdeci">#define PORT</div><div class="ttdoc">port number to connect to</div><div class="ttdef"><b>Definition:</b> udp_client.c:26</div></div>
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