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<h1>sys_unix.c</h1> </div>
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<a href="sys__unix_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * This handles abstract system level calls.</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * MUSCLE SmartCard Development ( http://www.linuxnet.com )</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Copyright (C) 1999</span>
<a name="l00007"></a>00007 <span class="comment"> * David Corcoran <corcoran@linuxnet.com></span>
<a name="l00008"></a>00008 <span class="comment"> * Copyright (C) 2002-2010</span>
<a name="l00009"></a>00009 <span class="comment"> * Ludovic Rousseau <ludovic.rousseau@free.fr></span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> * $Id: sys_unix.c 5047 2010-06-29 14:39:24Z rousseau $</span>
<a name="l00012"></a>00012 <span class="comment"> */</span>
<a name="l00013"></a>00013
<a name="l00019"></a>00019 <span class="preprocessor">#include "config.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <sys/mman.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <sys/stat.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <sys/wait.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <sys/time.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <sys/file.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <errno.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <unistd.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <stdio.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <string.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <signal.h></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <time.h></span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="preprocessor">#include "misc.h"</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include "<a class="code" href="sys__generic_8h.html" title="This handles abstract system level calls.">sys_generic.h</a>"</span>
<a name="l00037"></a>00037 <span class="preprocessor">#include "debuglog.h"</span>
<a name="l00038"></a>00038
<a name="l00044"></a><a class="code" href="sys__unix_8c.html#ac5d5594ed932c84d8dc62c404d2bde09">00044</a> INTERNAL <span class="keywordtype">int</span> <a class="code" href="sys__generic_8h.html#abbd906a9a16166248e32862f67fc49cd" title="Makes the current process sleep for some seconds.">SYS_Sleep</a>(<span class="keywordtype">int</span> iTimeVal)
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <span class="preprocessor">#ifdef HAVE_NANOSLEEP</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span> <span class="keyword">struct </span>timespec mrqtp;
<a name="l00048"></a>00048 mrqtp.tv_sec = iTimeVal;
<a name="l00049"></a>00049 mrqtp.tv_nsec = 0;
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordflow">return</span> nanosleep(&mrqtp, NULL);
<a name="l00052"></a>00052 <span class="preprocessor">#else</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span> <span class="keywordflow">return</span> sleep(iTimeVal);
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>}
<a name="l00056"></a>00056
<a name="l00062"></a><a class="code" href="sys__unix_8c.html#af101ba8774c74acd78f38d631b7d7564">00062</a> INTERNAL <span class="keywordtype">int</span> <a class="code" href="sys__generic_8h.html#a910a2c6f5b5a4eadf3213bdfdd0b9bb1" title="Makes the current process sleep for some microseconds.">SYS_USleep</a>(<span class="keywordtype">int</span> iTimeVal)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="preprocessor">#ifdef HAVE_NANOSLEEP</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span> <span class="keyword">struct </span>timespec mrqtp;
<a name="l00066"></a>00066 mrqtp.tv_sec = iTimeVal/1000000;
<a name="l00067"></a>00067 mrqtp.tv_nsec = (iTimeVal - (mrqtp.tv_sec * 1000000)) * 1000;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordflow">return</span> nanosleep(&mrqtp, NULL);
<a name="l00070"></a>00070 <span class="preprocessor">#else</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span> <span class="keyword">struct </span>timeval tv;
<a name="l00072"></a>00072 tv.tv_sec = iTimeVal/1000000;
<a name="l00073"></a>00073 tv.tv_usec = iTimeVal - (tv.tv_sec * 1000000);
<a name="l00074"></a>00074 <span class="keywordflow">return</span> select(0, NULL, NULL, NULL, &tv);
<a name="l00075"></a>00075 <span class="preprocessor">#endif</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span>}
<a name="l00077"></a>00077
<a name="l00078"></a>00078 INTERNAL <span class="keywordtype">int</span> SYS_RandomInt(<span class="keywordtype">int</span> fStart, <span class="keywordtype">int</span> fEnd)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 <span class="keyword">static</span> <span class="keywordtype">int</span> iInitialized = 0;
<a name="l00081"></a>00081 <span class="keywordtype">int</span> iRandNum = 0;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordflow">if</span> (0 == iInitialized)
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085 srand(SYS_GetSeed());
<a name="l00086"></a>00086 iInitialized = 1;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 iRandNum = ((rand()+0.0)/RAND_MAX * (fEnd - fStart)) + fStart;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordflow">return</span> iRandNum;
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 INTERNAL <span class="keywordtype">int</span> SYS_GetSeed(<span class="keywordtype">void</span>)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keyword">struct </span>timeval tv;
<a name="l00097"></a>00097 <span class="keyword">struct </span>timezone tz;
<a name="l00098"></a>00098 <span class="keywordtype">long</span> myseed = 0;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 tz.tz_minuteswest = 0;
<a name="l00101"></a>00101 tz.tz_dsttime = 0;
<a name="l00102"></a>00102 <span class="keywordflow">if</span> (gettimeofday(&tv, &tz) == 0)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 myseed = tv.tv_usec;
<a name="l00105"></a>00105 } <span class="keywordflow">else</span>
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 myseed = (long) time(NULL);
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keywordflow">return</span> myseed;
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111
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