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<div class="title">url1.cpp</div> </div>
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<div class="fragment"><div class="line"><span class="preprocessor">#include <<a class="code" href="common_8h.html">cc++/common.h</a>></span></div>
<div class="line"></div>
<div class="line"><span class="comment">// This was a test base64 stuff</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#ifdef CCXX_NAMESPACES</span></div>
<div class="line"><span class="preprocessor"></span><span class="keyword">using namespace </span>std;</div>
<div class="line"><span class="keyword">using namespace </span>ost;</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#define BUFLEN 512</span></div>
<div class="line"><span class="preprocessor"></span><span class="keywordtype">char</span> buf1[BUFLEN];</div>
<div class="line"><span class="keywordtype">char</span> buf2[BUFLEN];</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">bool</span> errorOccurred = <span class="keyword">false</span>;</div>
<div class="line"><span class="keywordtype">char</span> status[256] = <span class="stringliteral">""</span>;</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">void</span> printBug(<span class="keyword">const</span> <span class="keywordtype">char</span>*msg)</div>
<div class="line">{</div>
<div class="line"> errorOccurred = <span class="keyword">true</span>;</div>
<div class="line"> printf(<span class="stringliteral">"status = %s\n%s!\n"</span>,status,msg);</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <span class="keywordtype">char</span> fillChar=<span class="charliteral">'&'</span>;</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">void</span> initBuf(<span class="keywordtype">char</span>* buf)</div>
<div class="line">{</div>
<div class="line"> memset(buf,fillChar,BUFLEN);</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">void</span> checkBuf(<span class="keywordtype">char</span>* buf,<span class="keywordtype">int</span> prev,<span class="keywordtype">int</span> size)</div>
<div class="line">{</div>
<div class="line"> <span class="keywordtype">int</span> i;</div>
<div class="line"> <span class="keywordflow">for</span>(i=0;i<prev;++i)</div>
<div class="line"> <span class="keywordflow">if</span> (buf[i] != fillChar) {</div>
<div class="line"> printBug(<span class="stringliteral">"buffer overflow founded"</span>);</div>
<div class="line"> <span class="keywordflow">return</span>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">for</span>(i=prev+size;i<BUFLEN;++i)</div>
<div class="line"> <span class="keywordflow">if</span> (buf[i] != fillChar) {</div>
<div class="line"> printBug(<span class="stringliteral">"buffer overflow founded"</span>);</div>
<div class="line"> <span class="keywordflow">return</span>;</div>
<div class="line"> }</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="comment">// check with binary functions</span></div>
<div class="line"><span class="keywordtype">void</span> check1(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* s,<span class="keywordtype">size_t</span> len,<span class="keywordtype">size_t</span> buflen1,<span class="keywordtype">size_t</span> buflen2,<span class="keywordtype">bool</span> checkEqual=<span class="keyword">false</span>)</div>
<div class="line">{</div>
<div class="line"> initBuf(buf1);</div>
<div class="line"> b64Encode(s,len,buf1+16,buflen1);</div>
<div class="line"> checkBuf(buf1,16,buflen1);</div>
<div class="line"> initBuf(buf2);</div>
<div class="line"> b64Decode(buf1+16,(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)buf2+16,buflen2);</div>
<div class="line"> checkBuf(buf2,16,buflen2);</div>
<div class="line"> <span class="keywordflow">if</span> (checkEqual && memcmp(s,buf2+16,len) != 0)</div>
<div class="line"> printBug (<span class="stringliteral">"buffer different"</span>);</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="comment">// check with old string</span></div>
<div class="line"><span class="keywordtype">void</span> check2(<span class="keyword">const</span> <span class="keywordtype">char</span>* s,<span class="keywordtype">size_t</span> buflen,<span class="keywordtype">bool</span> checkEqual=<span class="keyword">false</span>)</div>
<div class="line">{</div>
<div class="line"> <span class="keywordflow">if</span> (!buflen) <span class="keywordflow">return</span>;</div>
<div class="line"> initBuf(buf1);</div>
<div class="line"> b64Encode(s,buf1+16,buflen);</div>
<div class="line"> checkBuf(buf1,16,buflen);</div>
<div class="line"> initBuf(buf2);</div>
<div class="line"> <span class="keywordtype">size_t</span> buflen2 = strlen(buf1+16)+1;</div>
<div class="line"> b64Decode(buf1+16,buf2+16);</div>
<div class="line"> checkBuf(buf2,16,buflen2);</div>
<div class="line"> <span class="keywordflow">if</span> (checkEqual && strcmp(s,buf2+16) != 0) {</div>
<div class="line"> printBug (<span class="stringliteral">"buffer different"</span>);</div>
<div class="line"> printf(<span class="stringliteral">"'%s' != '%s'\n'%s'\n"</span>,s,buf2+16,buf1+16);</div>
<div class="line"> }</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="comment">// check buffer overflow on string</span></div>
<div class="line"><span class="keywordtype">void</span> checkStringOverflow(<span class="keywordtype">char</span>* s,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len)</div>
<div class="line">{</div>
<div class="line"> <span class="keywordtype">bool</span> execCheck2 = (strlen(s) == len);</div>
<div class="line"> <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> l1=0;l1<32;++l1) {</div>
<div class="line"> sprintf(status,<span class="stringliteral">"%s %d"</span>,s,l1);</div>
<div class="line"> <span class="keywordflow">if</span> (execCheck2)</div>
<div class="line"> check2(s,l1,l1 >= (len+2)/3*4+1);</div>
<div class="line"> <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> l2=0;l2<32;++l2)</div>
<div class="line"> check1((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)s,len,l1,l2,</div>
<div class="line"> (l1 >= (len+2)/3*4+1)</div>
<div class="line"> && (l2 >= len) );</div>
<div class="line"> }</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">int</span> main()</div>
<div class="line">{</div>
<div class="line"> checkStringOverflow((<span class="keywordtype">char</span> *)<span class="stringliteral">""</span>,0);</div>
<div class="line"> checkStringOverflow((<span class="keywordtype">char</span> *)<span class="stringliteral">"aaa"</span>,3);</div>
<div class="line"> <span class="keywordflow">if</span> (!errorOccurred)</div>
<div class="line"> printf(<span class="stringliteral">"All seem ok\n"</span>);</div>
<div class="line"> <span class="keywordflow">return</span> 0;</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"></div>
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