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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1690/">https://reviewboard.asterisk.org/r/1690/</a>
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<p style="margin-top: 0;">On January 25th, 2012, 10:58 a.m., <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1690/diff/1/?file=23605#file23605line3655" 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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<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_STRING_FIELD</span><span class="p">(</span><span class="n">data</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'm not sure I agree with this change. For read purposes, string fields are treated as const char * const - for write purposes, you have to use the string field API. The data field ends up being passed as a void * to ast_request - and its up to the individual channel drivers to interpret them.
A channel driver may assume that they can cast this to a char and modify the internals of the string field, going outside of the normal string field API calls.</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;">Channel drivers should not do that anyway precisely because they cannot make an assumption about the buffer they are dealing with.
I have not seen a channel driver or most other parsing functions in Asterisk that did not first copy the string into a local buffer for dissecting.</pre>
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<p>- rmudgett</p>
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<p>On January 25th, 2012, 10:43 a.m., rmudgett wrote:</p>
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<div>Review request for Asterisk Developers and Mark Michelson.</div>
<div>By rmudgett.</div>
<p style="color: grey;"><i>Updated Jan. 25, 2012, 10:43 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;">* Fix memory leak of vars in error paths for action_originate().
* Moved struct fast_originate_helper tech and data members to stringfields.
* Simplified ActionID header handling for fast_originate().</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;">It compiles. :)</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/1.8/main/manager.c <span style="color: grey">(352510)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1690/diff/" style="margin-left: 3em;">View Diff</a></p>
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