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 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27151#file27151line3864" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/apps/app_voicemail.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int store_file(const char *dir, const char *mailboxuser, const char *mailboxcontext, int msgnum)</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="n">ast_debug</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="s">&quot;Length is %zd</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">fdlen</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;">fdlen is no longer a size_t so you just need to use %d or change fdlen to ssize_t.</pre>
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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;">Or just get rid of the debug statement, which added very little value.</pre>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27153#file27153line8731" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/channels/chan_dahdi.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct ast_frame *__dahdi_exception(struct ast_channel *ast)</pre></td>

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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">8731</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="n">idx</span> <span class="o">=</span> <span class="n">dahdi_get_index</span><span class="p">(</span><span class="n">ast</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="mi"><span class="hl">1</span></span><span class="p"><span class="hl">);</span></span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">8731</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="hl">        </span><span class="k"><span class="hl">if</span></span><span class="hl"> </span><span class="p"><span class="hl">((</span></span><span class="n">idx</span> <span class="o">=</span> <span class="n">dahdi_get_index</span><span class="p">(</span><span class="n">ast</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="mi"><span class="hl">0</span></span><span class="p"><span class="hl">))</span></span><span class="hl"> </span><span class="o"><span class="hl">&lt;</span></span><span class="hl"> </span><span class="mi"><span class="hl">0</span></span><span class="p"><span class="hl">)</span></span><span class="hl"> </span><span class="p"><span class="hl">{</span></span></pre></td>
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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">8732</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">f</span> <span class="o">=</span> <span class="o">&amp;</span><span class="n">ast_null_frame</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="k">return</span> <span class="n">f</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; ">        <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;">This should do the same thing as analog_exception() in sig_analog.c.</pre>
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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;">I saw that in sig_analog but wasn&#39;t sure if the same could safely be done here as well.  Done.</pre>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27157#file27157line130" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/formats/format_gsm.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int gsm_write(struct ast_filestream *fs, struct ast_frame *f)</pre></td>

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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">119</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_SET</span><span class="p">)</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">130</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_SET</span><span class="p">)</span><span class="hl"> </span><span class="p"><span class="hl">{</span></span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">120</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">offset</span> <span class="o">=</span> <span class="n">distance</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">131</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">offset</span> <span class="o">=</span> <span class="n">distance</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">121</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">else</span> <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_CUR</span> <span class="o">||</span> <span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_FORCECUR</span><span class="p">)</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">132</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="hl">        </span><span class="p"><span class="hl">}</span></span><span class="hl"> </span><span class="k">else</span> <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_CUR</span> <span class="o">||</span> <span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_FORCECUR</span><span class="p">)</span><span class="hl"> </span><span class="p"><span class="hl">{</span></span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">122</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">offset</span> <span class="o">=</span> <span class="n">distance</span> <span class="o">+</span> <span class="n">cur</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">133</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">offset</span> <span class="o">=</span> <span class="n">distance</span> <span class="o">+</span> <span class="n">cur</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">123</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">else</span> <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_END</span><span class="p">)</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">134</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="hl">        </span><span class="p"><span class="hl">}</span></span><span class="hl"> </span><span class="k">else</span> <span class="k">if</span><span class="p">(</span><span class="n">whence</span> <span class="o">==</span> <span class="n">SEEK_END</span><span class="p">)</span><span class="hl"> </span><span class="p"><span class="hl">{</span></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;">Since you&#39;re formatting here, add a space between if(</pre>
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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;">Done</pre>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27172#file27172line3634" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/main/manager.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int action_command(struct mansession *s, const struct message *m)</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">3625</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">lseek</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">SEEK_SET</span><span class="p">);</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3634</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">lseek</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">SEEK_SET</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;">What about this lseek?</pre>
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</blockquote>
<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;">Technically, not covered by this review because we don&#39;t use the value that it returns.  Presumably, if that lseek failed then we would fail to set the position to the beginning fo the file.  If that&#39;s the case, then the last successful lseek would have placed us at the end of the file.  The subsequent read operation would read 0 bytes (EOF) and would presumably place nothing in the buffer.  Eventually we&#39;d end up trying to append a buffer filled with NULL characters to the manager response - which wouldn&#39;t cause a crash, but would probably be incorrect from the perspective of the receiver.

I&#39;ll just check for the return value of lseek as well.</pre>
<br />

<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
 <blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
  



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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27172#file27172line3635" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/main/manager.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 action_command(struct mansession *s, const struct message *m)</pre></td>

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  <tr>
    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">3626</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="k">if</span> <span class="p">(</span><span class="n">read</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="n">buf</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3635</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="k">if</span> <span class="p">(</span><span class="n">read</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="n">buf</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">3627</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="n">ast_log</span><span class="p">(</span><span class="n">LOG_WARNING</span><span class="p">,</span> <span class="s">&quot;read() failed: %s</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">strerror</span><span class="p">(</span><span class="n">errno</span><span class="p">));</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3636</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="n">ast_log</span><span class="p">(</span><span class="n">LOG_WARNING</span><span class="p">,</span> <span class="s">&quot;read() failed: %s</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">strerror</span><span class="p">(</span><span class="n">errno</span><span class="p">));</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3637</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="n">astman_send_error</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">m</span><span class="p">,</span> <span class="s">&quot;Command response construction error&quot;</span><span class="p">);</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3638</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">goto</span> <span class="n">action_command_cleanup</span><span class="p">;</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">3628</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">3639</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <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;">buf is leaked here.</pre>
 </blockquote>





</blockquote>
<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;">Done</pre>
<br />

<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27174#file27174line1300" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/res/res_agi.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 enum agi_result launch_asyncagi(struct ast_channel *chan, char *argv[], int *efd)</pre></td>

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  <tr>
    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1300</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">res</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1300</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">res</span><span class="hl"> </span><span class="o"><span class="hl">||</span></span><span class="hl"> </span><span class="n"><span class="hl">res</span></span><span class="hl"> </span><span class="o"><span class="hl">&lt;</span></span><span class="hl"> </span><span class="mi"><span class="hl">0</span></span><span class="p">)</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;">Why not just if (res &lt;= 0)</pre>
 </blockquote>





</blockquote>
<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;">Changed</pre>
<br />

<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
 <blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
  



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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27174#file27174line1330" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/res/res_agi.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 enum agi_result launch_asyncagi(struct ast_channel *chan, char *argv[], int *efd)</pre></td>

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  <tr>
    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1330</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">res</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1330</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">res</span><span class="hl"> </span><span class="o"><span class="hl">||</span></span><span class="hl"> </span><span class="n"><span class="hl">res</span></span><span class="hl"> </span><span class="o"><span class="hl">&lt;</span></span><span class="hl"> </span><span class="mi"><span class="hl">0</span></span><span class="p">)</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;">Same here</pre>
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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;">And here</pre>
<br />

<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On April 11th, 2012, 3:34 p.m., <b>rmudgett</b> wrote:</p>
 <blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
  



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    <a href="https://reviewboard.asterisk.org/r/1863/diff/1/?file=27175#file27175line645" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/res/res_musiconhold.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void *monmp3thread(void *data)</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">645</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">pthread_testcancel</span><span class="p">();</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">645</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">pthread_testcancel</span><span class="p">();</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">646</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="k">continue</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;">This pthread_testcancel() is now redundant.
</pre>
 </blockquote>





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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;">Removed</pre>
<br />




<p>- Matt</p>


<br />
<p>On April 11th, 2012, 2:26 p.m., Matt Jordan wrote:</p>






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<div>Review request for Asterisk Developers.</div>
<div>By Matt Jordan.</div>


<p style="color: grey;"><i>Updated April 11, 2012, 2:26 p.m.</i></p>




<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;">Through a static analysis tool, a large number of errors were found that dealt with using potential negative return values in harmful ways.  The following is a summary of the changes for the various affected files:

* app_voicemail
  - a negative result from lseek is later passed into mmap as the size of the memory map
  - a negative result from read closes the various file descriptors and unlinks the output file, but the next check against the return value only checks to see if its non-zero
* chan_agent - ast_channel_unlock returns a negative value if the item passed to it is NULL or an invalid ao2 object.  strerror cannot accept a negative value.
* chan_dahdi - if dahdi_get_index returns a negative value, we index directly into an array
* format_* - various errors not checking return values of ftello and fseek, and passing the results into functions that expect non-negative values
* func_env - various places where the result of ftello was directly used as input to functions that expect non-negative values
* asterisk
  - the request to read returns a negative value.  This causes us to enter into the retry logic.  If we attempt to reconnect and succeed, we would normally proceed in the for(;;) loop and attempt to index into buf using the negative return value from read.  Instead, if we do reconnect, we immediately return to the beginning of the for(;;) loop and attempt a new read.
  - similar situation - if a read fails, don&#39;t attempt to index into a buffer using the return value
* frame - if we can&#39;t determine a preferred codec using the provided values, don&#39;t attempt to use an index value that never got set
* manager 
  - various failures of mkstemp, lseek were not checked for and could be provided to methods that don&#39;t handle negative numbers
  - passing a negative result from lseek into mmap as the size of the memory map
* translate - powerof can return a negative result if no bits are set, which would then be used as an index into an array
* res_agi - if read returns an error, we treated it as if bytes were read from the pipe
* res_musiconhold - if we fail to spawn spawn_mp3 returns a negative number, we wait a bit and attempt again later.  However, the return &#39;file descriptor&#39; srcfd is later passed into read.
* res_rtp_asterisk - ast_rtp_codecs_payload_code can return a negative value if no codecs are found that match between instance1 and the specified payload.  If that&#39;s the case, the bridge should be broken, as there are no compatible formats between the two different endpoints (and we shouldn&#39;t index into an array using the return value)</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">

 <li>/branches/1.8/main/translate.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/main/manager.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/main/frame.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/main/asterisk.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/funcs/func_env.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_wav_gsm.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_wav.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_vox.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_sln16.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_sln.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_siren7.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_siren14.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_pcm.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_h263.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_h264.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_ilbc.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_g729.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_gsm.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_g719.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/formats/format_g723.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/channels/chan_agent.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/channels/chan_dahdi.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/apps/app_voicemail.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/res/res_agi.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/res/res_musiconhold.c <span style="color: grey">(361945)</span></li>

 <li>/branches/1.8/res/res_rtp_asterisk.c <span style="color: grey">(361945)</span></li>

</ul>

<p><a href="https://reviewboard.asterisk.org/r/1863/diff/" style="margin-left: 3em;">View Diff</a></p>




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