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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/4468/">https://reviewboard.asterisk.org/r/4468/</a>
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<a href="https://reviewboard.asterisk.org/r/4468/diff/1/?file=71929#file71929line1252" style="color: black; font-weight: bold; text-decoration: underline;">/branches/13/main/config.c</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void ast_category_inherit(struct ast_category *new, const struct ast_category *base)</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1252</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="n">AST_LIST_INSERT_TAIL</span><span class="p">(</span><span class="o">&</span><span class="n">new</span><span class="o">-></span><span class="n">template_instances</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">next</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="n">AST_LIST_INSERT_TAIL</span><span class="p">(</span><span class="o">&</span><span class="n">new</span><span class="o">-></span><span class="n">template_instances</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">next</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">for</span> <span class="p">(</span><span class="n">var</span> <span class="o">=</span> <span class="n">base</span><span class="o">-></span><span class="n">root</span><span class="p">;</span> <span class="n">var</span><span class="p">;</span> <span class="n">var</span> <span class="o">=</span> <span class="n">var</span><span class="o">-></span><span class="n">next</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">for</span> <span class="p">(</span><span class="n">var</span> <span class="o">=</span> <span class="n">base</span><span class="o">-></span><span class="n">root</span><span class="p">;</span> <span class="n">var</span><span class="p">;</span> <span class="n">var</span> <span class="o">=</span> <span class="n">var</span><span class="o">-></span><span class="n">next</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="k">struct</span> <span class="n">ast_variable</span> <span class="o">*</span><span class="n">cloned</span> <span class="o">=</span> <span class="n">variable_clone</span><span class="p">(</span><span class="n">var</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="k">struct</span> <span class="n">ast_variable</span> <span class="o">*</span><span class="n">cloned</span> <span class="o">=</span> <span class="n">variable_clone</span><span class="p">(</span><span class="n">var</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">cloned</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="k">return</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="n">cloned</span><span class="o">-></span><span class="n">inherited</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="n">cloned</span><span class="o">-></span><span class="n">inherited</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="n">ast_variable_append</span><span class="p">(</span><span class="n">new</span><span class="p">,</span> <span class="n">cloned</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="n">ast_variable_append</span><span class="p">(</span><span class="n">new</span><span class="p">,</span> <span class="n">cloned</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="p">}</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Handling the possibility of cloned being NULL is necessary, but the problem with just returning here is that it leaves new in a half-altered state.
I think the way to do this is to perform all necessary allocations up front and then perform the necessary changes to new once they have all succeeded.</pre>
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<p>- Mark Michelson</p>
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<p>On March 9th, 2015, 8:50 p.m. UTC, Scott Griepentrog wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Scott Griepentrog.</div>
<p style="color: grey;"><i>Updated March 9, 2015, 8:50 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Using the CHAOS random failure mechanism (https://reviewboard.asterisk.org/r/4463/) I uncovered several possibilities of a crash on null pointer, and one uninitialized variable that allowed ast_random to lock up if used before utils init.
Additionally, extra output to determine why Asterisk failed to initialize has been added.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/13/main/xmldoc.c <span style="color: grey">(432661)</span></li>
<li>/branches/13/main/utils.c <span style="color: grey">(432661)</span></li>
<li>/branches/13/main/endpoints.c <span style="color: grey">(432661)</span></li>
<li>/branches/13/main/config.c <span style="color: grey">(432661)</span></li>
<li>/branches/13/main/codec_builtin.c <span style="color: grey">(432661)</span></li>
<li>/branches/13/main/asterisk.c <span style="color: grey">(432661)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4468/diff/" style="margin-left: 3em;">View Diff</a></p>
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