<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>libnjb: settime.c</title> <link href="tabs.css" rel="stylesheet" type="text/css"> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.9 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> <li><a href="examples.html"><span>Examples</span></a></li> </ul> </div> </div> <div class="contents"> <h1>settime.c</h1><div class="fragment"><pre class="fragment"><span class="preprocessor">#include "common.h"</span> <span class="preprocessor">#include <string.h></span> <span class="keyword">static</span> <span class="keywordtype">char</span> *prompt (<span class="keyword">const</span> <span class="keywordtype">char</span> *prompt, <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> bufsz, <span class="keywordtype">int</span> required) { <span class="keywordtype">char</span> *cp, *bp; <span class="keywordflow">while</span> (1) { fprintf(stdout, <span class="stringliteral">"%s> "</span>, prompt); <span class="keywordflow">if</span> ( fgets(buffer, bufsz, stdin) == NULL ) { <span class="keywordflow">if</span> (ferror(stdin)) { perror(<span class="stringliteral">"fgets"</span>); } <span class="keywordflow">else</span> { fprintf(stderr, <span class="stringliteral">"EOF on stdin\n"</span>); } <span class="keywordflow">return</span> NULL; } cp= strrchr(buffer, <span class="charliteral">'\n'</span>); <span class="keywordflow">if</span> ( cp != NULL ) *cp= <span class="charliteral">'\0'</span>; bp= buffer; <span class="keywordflow">while</span> ( bp != cp ) { <span class="keywordflow">if</span> ( *bp != <span class="charliteral">' '</span> && *bp != <span class="charliteral">'\t'</span> ) <span class="keywordflow">return</span> bp; bp++; } <span class="keywordflow">if</span> (! required) <span class="keywordflow">return</span> bp; } } <span class="keyword">static</span> <span class="keywordtype">void</span> dumptime(<a name="_a0"></a><a class="code" href="structnjb__time__struct.html">njb_time_t</a> *time) { <span class="keywordflow">if</span> (time != NULL) { <span class="keywordflow">switch</span>(time-><a name="a1"></a><a class="code" href="structnjb__time__struct.html#227a86206933473fc61798d4d5e37683">weekday</a>) { <span class="keywordflow">case</span> 0: printf(<span class="stringliteral">"Sunday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 1: printf(<span class="stringliteral">"Monday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 2: printf(<span class="stringliteral">"Tuesday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 3: printf(<span class="stringliteral">"Wednesday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 4: printf(<span class="stringliteral">"Thursday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 5: printf(<span class="stringliteral">"Friday "</span>); <span class="keywordflow">break</span>; <span class="keywordflow">case</span> 6: printf(<span class="stringliteral">"Saturday "</span>); } <span class="comment">/* OK this is the way we write dates</span> <span class="comment"> * in Sweden, you may change it if you</span> <span class="comment"> * don't like it!</span> <span class="comment"> */</span> printf(<span class="stringliteral">"%u-%.2u-%.2u "</span>, time-><a name="a2"></a><a class="code" href="structnjb__time__struct.html#ce156e46767b197b844936654dffb739">year</a>, time-><a name="a3"></a><a class="code" href="structnjb__time__struct.html#e41964a3348673cdd219b847f886bbf9">month</a>, time-><a name="a4"></a><a class="code" href="structnjb__time__struct.html#f8099ff42d8ebd590e33f676fcc2e6b0">day</a>); printf(<span class="stringliteral">"%.2u:%.2u:%.2u\n"</span>, time-><a name="a5"></a><a class="code" href="structnjb__time__struct.html#3d1df33f2b06d60440f746d9735d6f0d">hours</a>, time-><a name="a6"></a><a class="code" href="structnjb__time__struct.html#ad6d440031c3816280d6584c9ae503eb">minutes</a>, time-><a name="a7"></a><a class="code" href="structnjb__time__struct.html#cd35e31eeac27b23ba9e34b646ded27d">seconds</a>); } } <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv) { <a name="_a8"></a><a class="code" href="structnjb__struct.html">njb_t</a> njbs[<a name="a9"></a><a class="code" href="libnjb_8h.html#46e41076f44166b6446e3fdae6db62a9">NJB_MAX_DEVICES</a>], *njb; <span class="keyword">extern</span> <span class="keywordtype">char</span> *optarg; <span class="keywordtype">int</span> opt; <span class="keywordtype">int</span> n, debug; <a class="code" href="structnjb__time__struct.html">njb_time_t</a> *time; <span class="keywordtype">char</span> *pnum; <span class="keywordtype">char</span> num[80]; debug = 0; <span class="keywordflow">while</span> ((opt = getopt(argc, argv, <span class="stringliteral">"D:"</span>)) != -1) { <span class="keywordflow">switch</span> (opt) { <span class="keywordflow">case</span> <span class="charliteral">'D'</span>: debug = atoi(optarg); <span class="keywordflow">break</span>; <span class="keywordflow">default</span>: fprintf(stderr, <span class="stringliteral">"usage: settime [ -D debuglvl ]\n"</span>); <span class="keywordflow">return</span> 1; } } <span class="keywordflow">if</span> (debug) <a name="a10"></a><a class="code" href="group__internals.html#ga5ff48cc89e320bc1c1d89efd2613d77">NJB_Set_Debug</a>(debug); <span class="keywordflow">if</span> (<a name="a11"></a><a class="code" href="group__basic.html#g199efd7711a70ae5d63f4052c2e492d3">NJB_Discover</a>(njbs, 0, &n) == -1) { fprintf(stderr, <span class="stringliteral">"could not locate any jukeboxes\n"</span>); <span class="keywordflow">return</span> 1; } <span class="keywordflow">if</span> (n == 0) { fprintf(stderr, <span class="stringliteral">"no NJB devices found\n"</span>); <span class="keywordflow">return</span> 0; } njb = njbs; <span class="keywordflow">if</span> (<a name="a12"></a><a class="code" href="group__basic.html#ga631536b597d8f8cb73eeb47eff6640a">NJB_Open</a>(njb) == -1) { <a name="a13"></a><a class="code" href="group__internals.html#ge9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb,stderr); <span class="keywordflow">return</span> 1; } <span class="keywordflow">if</span> (<a name="a14"></a><a class="code" href="group__basic.html#g023eb258743b5961ec1b85cbd62a55cb">NJB_Capture</a>(njb) == -1) { <a class="code" href="group__internals.html#ge9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb,stderr); <span class="keywordflow">return</span> 1; } time = <a name="a15"></a><a class="code" href="group__timeapi.html#gb81e4b0ec40afa88e68334d89ae3ba44">NJB_Get_Time</a>(njb); printf(<span class="stringliteral">"The time on the jukebox is:\n"</span>); dumptime(time); printf(<span class="stringliteral">"\nNew time (old values preserved if left blank):\n"</span>); <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Year:"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#ce156e46767b197b844936654dffb739">year</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Month (1-12):"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#e41964a3348673cdd219b847f886bbf9">month</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Day:"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#f8099ff42d8ebd590e33f676fcc2e6b0">day</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Weekday (0-6):"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#227a86206933473fc61798d4d5e37683">weekday</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Hours (0-23):"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#3d1df33f2b06d60440f746d9735d6f0d">hours</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Minutes (0-59):"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#ad6d440031c3816280d6584c9ae503eb">minutes</a>= (u_int16_t) strtoul(pnum, 0, 10); } <span class="keywordflow">if</span> ( (pnum= prompt(<span class="stringliteral">"Seconds (0-59):"</span>, num, 80, 0)) == NULL ) <span class="keywordflow">return</span> 1; <span class="keywordflow">if</span> ( strlen(pnum) ) { time-><a class="code" href="structnjb__time__struct.html#cd35e31eeac27b23ba9e34b646ded27d">seconds</a>= (u_int16_t) strtoul(pnum, 0, 10); } printf(<span class="stringliteral">"The time on the jukebox is being set to:\n"</span>); dumptime(time); <span class="keywordflow">if</span> (<a name="a16"></a><a class="code" href="group__timeapi.html#g257a1f0973dc7e3ed779eb55978de2a7">NJB_Set_Time</a>(njb, time) == -1) { <a class="code" href="group__internals.html#ge9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb,stderr); } <a name="a17"></a><a class="code" href="group__timeapi.html#gd520b434c17f481c42bf12f487e632ae">NJB_Destroy_Time</a>(time); <a name="a18"></a><a class="code" href="group__basic.html#g69d4034384f1bd033ed2c9ba7a9b32d4">NJB_Release</a>(njb); <a name="a19"></a><a class="code" href="group__basic.html#g13a9c926c430f38f3a6535ecaaf3e9b9">NJB_Close</a>(njb); <span class="keywordflow">return</span> 0; } </pre></div> </div> <hr size="1"><address style="text-align: right;"><small>Generated on Sun Jul 26 17:17:26 2009 for libnjb by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.9 </small></address> </body> </html>