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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3599/">https://reviewboard.asterisk.org/r/3599/</a>
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<p style="margin-top: 0;">On June 6th, 2014, 9:41 p.m. CDT, <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3599/diff/1/?file=59389#file59389line1258" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/menuselect.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; ">static int parse_existing_config(const char *infile)</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1258</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="kt">FILE</span> <span class="o">*</span><span class="n">f</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="kt">FILE</span> <span class="o">*</span><span class="n">f</span><span class="p">;</span></pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1259</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="kt">char</span> <span class="n">buf</span><span class="p">[</span><span class="mi"><span class="hl">2048</span></span><span class="p">];</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="kt">char</span> <span class="n">buf</span><span class="p">[</span><span class="mi"><span class="hl">8192</span></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="kt">char</span> <span class="o">*</span><span class="n">category</span><span class="p">,</span> <span class="o">*</span><span class="n">parse</span><span class="p">,</span> <span class="o">*</span><span class="n">member</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="kt">char</span> <span class="o">*</span><span class="n">category</span><span class="p">,</span> <span class="o">*</span><span class="n">parse</span><span class="p">,</span> <span class="o">*</span><span class="n">member</span><span class="p">;</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">As much as I'd like to hit 'Ship It!', I'm pretty sure this is going blow up people trying to use menuselect on embedded systems.
8k is a pretty big stack allocation...
We're using fgets here to parse out the file - what line length is exceeding 2k in that file?
Another option here would be to allocate a buffer on the heap, read chunks in 2k sizes, add the contents to the buffer, and grow + add until we've read a full line.
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Might I ask why menuselect would be run on an embedded system and not by the development machine that compiles Asterisk?</pre>
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<p>- rmudgett</p>
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<p>On June 6th, 2014, 1:59 p.m. CDT, Corey Farrell wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Corey Farrell.</div>
<p style="color: grey;"><i>Updated June 6, 2014, 1:59 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-23830">ASTERISK-23830</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Menuselect
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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;">menuselect reads config using a char buf[2048]. This is too small if all resource modules are disabled - causing the last modules listed to be re-enabled. This change expands the buffer to 8192.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </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;">make menuselect, disabled all resource modules, saved and went back in to verify all resource modules were still disabled.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/trunk/menuselect.c <span style="color: grey">(1157)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3599/diff/" style="margin-left: 3em;">View Diff</a></p>
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