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<h1>debug.c</h1><a href="debug_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"> * MUSCLE SmartCard Development ( http://www.linuxnet.com )</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 1999-2002</span>
<a name="l00005"></a>00005 <span class="comment"> * David Corcoran <corcoran@linuxnet.com></span>
<a name="l00006"></a>00006 <span class="comment"> * Copyright (C) 1999-2008</span>
<a name="l00007"></a>00007 <span class="comment"> * Ludovic Rousseau <ludovic.rousseau@free.fr></span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * $Id: debuglog.c 1953 2006-03-21 13:46:28Z rousseau $</span>
<a name="l00010"></a>00010 <span class="comment"> */</span>
<a name="l00011"></a>00011
<a name="l00017"></a>00017 <span class="preprocessor">#include "config.h"</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <stdarg.h></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <unistd.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <string.h></span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="debug_8h.html" title="This handles debugging.">debug.h</a>"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="strlcpycat_8h.html" title="prototypes of strlcpy()/strlcat() imported from OpenBSD">strlcpycat.h</a>"</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#define DEBUG_BUF_SIZE 2048</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00029"></a><a class="code" href="debug_8c.html#a731a4e24c38dae1ffdb9bed5abfe945f">00029</a> <span class="keyword">static</span> <span class="keywordtype">char</span> <a class="code" href="debug_8c.html#a731a4e24c38dae1ffdb9bed5abfe945f" title="default level is quiet to avoid polluting fd 2 (possibly NOT stderr)">LogLevel</a> = PCSC_LOG_CRITICAL+1;
<a name="l00030"></a>00030
<a name="l00031"></a><a class="code" href="debug_8c.html#ad9814cd7cb6a5bdc3d3250f957821136">00031</a> <span class="keyword">static</span> <span class="keywordtype">signed</span> <span class="keywordtype">char</span> <a class="code" href="debug_8c.html#ad9814cd7cb6a5bdc3d3250f957821136" title="no color by default">LogDoColor</a> = 0;
<a name="l00033"></a>00033 <span class="keyword">static</span> <span class="keywordtype">void</span> log_init(<span class="keywordtype">void</span>)
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="keywordtype">char</span> *e;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="preprocessor">#ifdef LIBPCSCLITE</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span> e = getenv(<span class="stringliteral">"PCSCLITE_DEBUG"</span>);
<a name="l00039"></a>00039 <span class="preprocessor">#else</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span> e = getenv(<span class="stringliteral">"MUSCLECARD_DEBUG"</span>);
<a name="l00041"></a>00041 <span class="preprocessor">#endif</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span> <span class="keywordflow">if</span> (e)
<a name="l00043"></a>00043 <a class="code" href="debug_8c.html#a731a4e24c38dae1ffdb9bed5abfe945f" title="default level is quiet to avoid polluting fd 2 (possibly NOT stderr)">LogLevel</a> = atoi(e);
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="comment">/* log to stderr and stderr is a tty? */</span>
<a name="l00046"></a>00046 <span class="keywordflow">if</span> (isatty(fileno(stderr)))
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <span class="keyword">const</span> <span class="keywordtype">char</span> *terms[] = { <span class="stringliteral">"linux"</span>, <span class="stringliteral">"xterm"</span>, <span class="stringliteral">"xterm-color"</span>, <span class="stringliteral">"Eterm"</span>, <span class="stringliteral">"rxvt"</span>, <span class="stringliteral">"rxvt-unicode"</span> };
<a name="l00049"></a>00049 <span class="keywordtype">char</span> *term;
<a name="l00050"></a>00050
<a name="l00051"></a>00051 term = getenv(<span class="stringliteral">"TERM"</span>);
<a name="l00052"></a>00052 <span class="keywordflow">if</span> (term)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="comment">/* for each known color terminal */</span>
<a name="l00057"></a>00057 <span class="keywordflow">for</span> (i = 0; i < <span class="keyword">sizeof</span>(terms) / <span class="keyword">sizeof</span>(terms[0]); i++)
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="comment">/* we found a supported term? */</span>
<a name="l00060"></a>00060 <span class="keywordflow">if</span> (0 == strcmp(terms[i], term))
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <a class="code" href="debug_8c.html#ad9814cd7cb6a5bdc3d3250f957821136" title="no color by default">LogDoColor</a> = 1;
<a name="l00063"></a>00063 <span class="keywordflow">break</span>;
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068 } <span class="comment">/* log_init */</span>
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keywordtype">void</span> log_msg(<span class="keyword">const</span> <span class="keywordtype">int</span> priority, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ...)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="keywordtype">char</span> DebugBuffer[<a class="code" href="debuglog_8c.html#a758f9da8805a79adbe236829c3802703" title="Max string size when dumping a 256 bytes longs APDU Should be bigger than 256*3+30...">DEBUG_BUF_SIZE</a>];
<a name="l00073"></a>00073 va_list argptr;
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keywordtype">int</span> is_initialized = 0;
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keywordflow">if</span> (!is_initialized)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 log_init();
<a name="l00079"></a>00079 is_initialized = 1;
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (priority < <a class="code" href="debug_8c.html#a731a4e24c38dae1ffdb9bed5abfe945f" title="default level is quiet to avoid polluting fd 2 (possibly NOT stderr)">LogLevel</a>) <span class="comment">/* log priority lower than threshold? */</span>
<a name="l00083"></a>00083 <span class="keywordflow">return</span>;
<a name="l00084"></a>00084
<a name="l00085"></a>00085 va_start(argptr, fmt);
<a name="l00086"></a>00086 (void)vsnprintf(DebugBuffer, <a class="code" href="debuglog_8c.html#a758f9da8805a79adbe236829c3802703" title="Max string size when dumping a 256 bytes longs APDU Should be bigger than 256*3+30...">DEBUG_BUF_SIZE</a>, fmt, argptr);
<a name="l00087"></a>00087 va_end(argptr);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="keywordflow">if</span> (<a class="code" href="debug_8c.html#ad9814cd7cb6a5bdc3d3250f957821136" title="no color by default">LogDoColor</a>)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="keyword">const</span> <span class="keywordtype">char</span> *color_pfx = <span class="stringliteral">""</span>, *color_sfx = <span class="stringliteral">"\33[0m"</span>;
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordflow">switch</span> (priority)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keywordflow">case</span> PCSC_LOG_CRITICAL:
<a name="l00097"></a>00097 color_pfx = <span class="stringliteral">"\33[01;31m"</span>; <span class="comment">/* bright + Red */</span>
<a name="l00098"></a>00098 <span class="keywordflow">break</span>;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordflow">case</span> PCSC_LOG_ERROR:
<a name="l00101"></a>00101 color_pfx = <span class="stringliteral">"\33[35m"</span>; <span class="comment">/* Magenta */</span>
<a name="l00102"></a>00102 <span class="keywordflow">break</span>;
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keywordflow">case</span> PCSC_LOG_INFO:
<a name="l00105"></a>00105 color_pfx = <span class="stringliteral">"\33[34m"</span>; <span class="comment">/* Blue */</span>
<a name="l00106"></a>00106 <span class="keywordflow">break</span>;
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keywordflow">case</span> PCSC_LOG_DEBUG:
<a name="l00109"></a>00109 color_pfx = <span class="stringliteral">""</span>; <span class="comment">/* normal (black) */</span>
<a name="l00110"></a>00110 color_sfx = <span class="stringliteral">""</span>;
<a name="l00111"></a>00111 <span class="keywordflow">break</span>;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 fprintf(stderr, <span class="stringliteral">"%s%s%s\n"</span>, color_pfx, DebugBuffer, color_sfx);
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 <span class="keywordflow">else</span>
<a name="l00116"></a>00116 fprintf(stderr, <span class="stringliteral">"%s\n"</span>, DebugBuffer);
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 } <span class="comment">/* log_msg */</span>
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordtype">void</span> log_xxd(<span class="keyword">const</span> <span class="keywordtype">int</span> priority, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer,
<a name="l00121"></a>00121 <span class="keyword">const</span> <span class="keywordtype">int</span> len)
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <span class="keywordtype">char</span> DebugBuffer[<a class="code" href="debuglog_8c.html#a758f9da8805a79adbe236829c3802703" title="Max string size when dumping a 256 bytes longs APDU Should be bigger than 256*3+30...">DEBUG_BUF_SIZE</a>];
<a name="l00124"></a>00124 <span class="keywordtype">int</span> i;
<a name="l00125"></a>00125 <span class="keywordtype">char</span> *c;
<a name="l00126"></a>00126 <span class="keywordtype">char</span> *debug_buf_end;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keywordflow">if</span> (priority < <a class="code" href="debug_8c.html#a731a4e24c38dae1ffdb9bed5abfe945f" title="default level is quiet to avoid polluting fd 2 (possibly NOT stderr)">LogLevel</a>) <span class="comment">/* log priority lower than threshold? */</span>
<a name="l00129"></a>00129 <span class="keywordflow">return</span>;
<a name="l00130"></a>00130
<a name="l00131"></a>00131 debug_buf_end = DebugBuffer + <a class="code" href="debuglog_8c.html#a758f9da8805a79adbe236829c3802703" title="Max string size when dumping a 256 bytes longs APDU Should be bigger than 256*3+30...">DEBUG_BUF_SIZE</a> - 5;
<a name="l00132"></a>00132
<a name="l00133"></a>00133 (void)strlcpy(DebugBuffer, msg, <span class="keyword">sizeof</span>(DebugBuffer));
<a name="l00134"></a>00134 c = DebugBuffer + strlen(DebugBuffer);
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="keywordflow">for</span> (i = 0; (i < len) && (c < debug_buf_end); ++i)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 sprintf(c, <span class="stringliteral">"%02X "</span>, buffer[i]);
<a name="l00139"></a>00139 c += strlen(c);
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 fprintf(stderr, <span class="stringliteral">"%s\n"</span>, DebugBuffer);
<a name="l00143"></a>00143 } <span class="comment">/* log_xxd */</span>
<a name="l00144"></a>00144
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