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<title>xmlrpc: system/socket.c Source File</title>
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<h1>system/socket.c</h1><a href="socket_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include <stdio.h></span> <span class="comment">/* for printf() and fprintf() */</span>
<a name="l00002"></a>00002 <span class="preprocessor">#include <sys/socket.h></span> <span class="comment">/* for socket(), bind(), and connect() */</span>
<a name="l00003"></a>00003 <span class="preprocessor">#include <arpa/inet.h></span> <span class="comment">/* for sockaddr_in and inet_ntoa() */</span>
<a name="l00004"></a>00004 <span class="preprocessor">#include <stdlib.h></span> <span class="comment">/* for atoi() and exit() */</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include <string.h></span> <span class="comment">/* for memset() */</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <unistd.h></span> <span class="comment">/* for close() */</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <errno.h></span> <span class="comment">/* for errno */</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <syslog.h></span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#include "../include/monitor.h"</span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="keyword">extern</span> <span class="keywordtype">int</span> <a class="code" href="client_8h.html#0b2caeb4b6f130be43e5a2f0267dd453">verbose</a>;
<a name="l00014"></a>00014
<a name="l00015"></a><a class="code" href="socket_8c.html#44dc8ffaedb1d6f7d4663f5cecaf4e70">00015</a> <span class="keywordtype">int</span> <a class="code" href="socket_8h.html#44dc8ffaedb1d6f7d4663f5cecaf4e70">initServerSocket</a>(in_port_t port, <span class="keywordtype">int</span> backlog) {
<a name="l00016"></a>00016 <span class="keywordtype">int</span> sock; <span class="comment">/* socket descriptor for server */</span>
<a name="l00017"></a>00017 <span class="keyword">struct </span>sockaddr_in addr; <span class="comment">/* Local address */</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="comment">/* Create socket for incoming connections */</span>
<a name="l00020"></a>00020 <span class="keywordflow">if</span> (-1 == (sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))) {
<a name="l00021"></a>00021 <a class="code" href="monitor_8h.html#5d332cf84a9d6dd9c77382a74960cccf">syslogMonitor</a>(LOG_ERR, <a class="code" href="monitor_8h.html#d702c7f3311c0b76ee05d7efd27c87b2">MON_INFO</a>, <span class="stringliteral">"server.socket"</span>,
<a name="l00022"></a>00022 <span class="stringliteral">"error opening socket: %s - service terminated"</span>,
<a name="l00023"></a>00023 strerror(errno));
<a name="l00024"></a>00024 exit(EXIT_FAILURE);
<a name="l00025"></a>00025 }
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">/* Construct local address structure */</span>
<a name="l00028"></a>00028 memset(&addr, 0, <span class="keyword">sizeof</span>(addr)); <span class="comment">/* Zero out structure */</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 addr.sin_family = AF_INET; <span class="comment">/* Internet address family */</span>
<a name="l00031"></a>00031 addr.sin_addr.s_addr = htonl(INADDR_ANY); <span class="comment">/* Any incoming interface */</span>
<a name="l00032"></a>00032 addr.sin_port = htons(port); <span class="comment">/* Local port */</span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">/* Bind to the local address */</span>
<a name="l00035"></a>00035 <span class="keywordflow">if</span> (-1 == bind(sock, (<span class="keyword">struct</span> sockaddr *) &addr, <span class="keyword">sizeof</span>(addr))) {
<a name="l00036"></a>00036 <a class="code" href="monitor_8h.html#5d332cf84a9d6dd9c77382a74960cccf">syslogMonitor</a>(LOG_ERR, <a class="code" href="monitor_8h.html#d702c7f3311c0b76ee05d7efd27c87b2">MON_INFO</a>, <span class="stringliteral">"server.bind"</span>,
<a name="l00037"></a>00037 <span class="stringliteral">"error binding socket: %s - service terminated"</span>,
<a name="l00038"></a>00038 strerror(errno));
<a name="l00039"></a>00039 exit(EXIT_FAILURE);
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="comment">/* Mark the socket so it will listen for incoming connections */</span>
<a name="l00043"></a>00043 <span class="keywordflow">if</span> (-1 == listen(sock, backlog)) {
<a name="l00044"></a>00044 <a class="code" href="monitor_8h.html#5d332cf84a9d6dd9c77382a74960cccf">syslogMonitor</a>(LOG_ERR, <a class="code" href="monitor_8h.html#d702c7f3311c0b76ee05d7efd27c87b2">MON_INFO</a>, <span class="stringliteral">"server.listen"</span>,
<a name="l00045"></a>00045 <span class="stringliteral">"error binding socket: %s - service terminated"</span>,
<a name="l00046"></a>00046 strerror(errno));
<a name="l00047"></a>00047 exit(EXIT_FAILURE);
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="keywordflow">return</span> sock;
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a><a class="code" href="socket_8c.html#f09ba488c48f40f8d1f133a4441deb25">00053</a> <span class="keywordtype">int</span> <a class="code" href="socket_8h.html#f09ba488c48f40f8d1f133a4441deb25">acceptConnection</a>(<span class="keywordtype">int</span> servSock, <span class="keywordtype">char</span> remoteAddr[16]) {
<a name="l00054"></a>00054 <span class="keywordtype">int</span> sock; <span class="comment">/* Socket descriptor for client */</span>
<a name="l00055"></a>00055 <span class="keyword">struct </span>sockaddr_in addr; <span class="comment">/* Client address */</span>
<a name="l00056"></a>00056 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len; <span class="comment">/* Length of client address data structure */</span>
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="comment">/* Set the size of the in-out parameter */</span>
<a name="l00059"></a>00059 len = <span class="keyword">sizeof</span>(addr);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">/* Wait for a client to connect */</span>
<a name="l00062"></a>00062 <span class="keywordflow">if</span> (-1 == (sock = accept(servSock, (<span class="keyword">struct</span> sockaddr *) &addr, &len))) {
<a name="l00063"></a>00063 <a class="code" href="monitor_8h.html#5d332cf84a9d6dd9c77382a74960cccf">syslogMonitor</a>(LOG_ERR, <a class="code" href="monitor_8h.html#d702c7f3311c0b76ee05d7efd27c87b2">MON_INFO</a>, <span class="stringliteral">"server.accept"</span>,
<a name="l00064"></a>00064 <span class="stringliteral">"error acception connection: %s"</span>, strerror(errno));
<a name="l00065"></a>00065 } <span class="keywordflow">else</span> {
<a name="l00066"></a>00066 strncpy (remoteAddr, inet_ntoa(addr.sin_addr), <span class="keyword">sizeof</span>(remoteAddr)-1);
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="comment">/* clntSock is connected to a client! */</span>
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (0 != <a class="code" href="client_8h.html#0b2caeb4b6f130be43e5a2f0267dd453">verbose</a>) {
<a name="l00071"></a>00071 syslog(LOG_INFO, <span class="stringliteral">"handling client %s\n"</span>, inet_ntoa(addr.sin_addr));
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordflow">return</span> sock;
<a name="l00075"></a>00075 }
</pre></div></div>
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