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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3819/">https://reviewboard.asterisk.org/r/3819/</a>
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<p style="margin-top: 0;">On July 16th, 2014, 8:23 p.m. EDT, <b>rmudgett</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3819/diff/1/?file=64628#file64628line875" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/bridge_channel.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 run_app_helper(struct ast_channel *chan, const char *app_name, const char *app_args)</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="n">substitutedargs</span> <span class="o">=</span> <span class="n">ast_alloca</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">app_args</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">pbx_substitute_variables_helper</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="n">app_args</span><span class="p">,</span> <span class="n">substitutedargs</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">app_args</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</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;">I think you want strlen(app_args) + 1 instead of sizeof(app_args) which returns the size of a pointer. I'm surprised this didn't crash from stack corruption.
Look at using ast_str_substitute_variables() instead so you don't need to create a worst case fixed sized buffer for any substituted variables.</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;">Why yes, I am surprised too. I did test this under trunk and no crash occurred.
An updated patch is on the way using ast_str_substitute_variables(). Thanks for the suggestion to use that instead.</pre>
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<p>- Michael</p>
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<p>On July 16th, 2014, 7:53 p.m. EDT, Michael Young wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Michael Young.</div>
<p style="color: grey;"><i>Updated July 16, 2014, 7:53 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-22608">ASTERISK-22608</a>
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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;">Say you wanted to include variables in an application map and have those variables substituted and passed along to the application being executed; currently this does not happen.
This patch adds this new feature.
This simple patch was originally written for 1.4 but I have been maintaining it all the way up to version 11. It is time to see if anyone else sees any value in this and get it committed.</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;">This has been in production since 1.4 and updated for trunk. The trunk version of the patch was tested on dev machine.</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/main/bridge_channel.c <span style="color: grey">(416990)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3819/diff/" style="margin-left: 3em;">View Diff</a></p>
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