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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/2061/">https://reviewboard.asterisk.org/r/2061/</a>
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<a href="https://reviewboard.asterisk.org/r/2061/diff/3/?file=30709#file30709line63" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/funcs/func_shell.c</a>
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(Diff revision 3)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int shellex_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</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">63</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">close</span><span class="p">(</span><span class="n">shell</span><span class="p">[</span><span class="mi">0</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>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">64</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">close</span><span class="p">(</span><span class="n">shell</span><span class="p">[</span><span class="mi">1</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>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">65</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">close</span><span class="p">(</span><span class="n">shellerr</span><span class="p">[</span><span class="mi">0</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>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">66</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">close</span><span class="p">(</span><span class="n">shellerr</span><span class="p">[</span><span class="mi">1</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;">If pipe fails, this will result in closing -1 in shellerr. While that isn't a huge problem, it will result in failed system calls.</pre>
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<a href="https://reviewboard.asterisk.org/r/2061/diff/3/?file=30709#file30709line73" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/funcs/func_shell.c</a>
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(Diff revision 3)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int shellex_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="kt">int</span> <span class="n">fd</span> <span class="o">=</span> <span class="n">open</span><span class="p">(</span><span class="s">"/dev/null"</span><span class="p">,</span> <span class="n">O_RDWR</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;">Granted it would be incredibly rare to not be able to open /dev/null, but we should still check for an error here.</pre>
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<a href="https://reviewboard.asterisk.org/r/2061/diff/3/?file=30709#file30709line75" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/funcs/func_shell.c</a>
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(Diff revision 3)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int shellex_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">dup2</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="n">STDIN_FILENO</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="n">dup2</span><span class="p">(</span><span class="n">shell</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">STDOUT_FILENO</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="n">dup2</span><span class="p">(</span><span class="n">shellerr</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">STDERR_FILENO</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;">Check the return values of these as well.</pre>
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<a href="https://reviewboard.asterisk.org/r/2061/diff/3/?file=30709#file30709line88" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/funcs/func_shell.c</a>
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(Diff revision 3)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int shellex_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">errstr</span> <span class="o">=</span> <span class="n">ast_str_create</span><span class="p">(</span><span class="mi">16</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;">Check for failed creation of errstr. This also needs to be freed in the cleanup routine.</pre>
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<p>- Matt</p>
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<p>On July 28th, 2012, 1:09 a.m., Tilghman Lesher wrote:</p>
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<div>Review request for Asterisk Developers and Kevin Fleming.</div>
<div>By Tilghman Lesher.</div>
<p style="color: grey;"><i>Updated July 28, 2012, 1:09 a.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;">Following a discussion about capturing the return value as well as the output of a command, I came up with this.</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;">Compile testing only</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/funcs/func_curl.c <span style="color: grey">(370533)</span></li>
<li>/trunk/funcs/func_odbc.c <span style="color: grey">(370533)</span></li>
<li>/trunk/funcs/func_realtime.c <span style="color: grey">(370533)</span></li>
<li>/trunk/funcs/func_shell.c <span style="color: grey">(370533)</span></li>
<li>/trunk/funcs/func_strings.c <span style="color: grey">(370533)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/2061/diff/" style="margin-left: 3em;">View Diff</a></p>
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