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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/2641/">https://reviewboard.asterisk.org/r/2641/</a>
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<p style="margin-top: 0;">On June 24th, 2013, 10:02 p.m. UTC, <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/2641/diff/1/?file=40088#file40088line113" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/stasis/control.c</a>
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(Diff revision 1)
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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="kt">char</span> <span class="n">workspace</span><span class="p">[</span><span class="mi">1024</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="n">ast_func_read</span><span class="p">(</span><span class="n">control</span><span class="o">-></span><span class="n">channel</span><span class="p">,</span> <span class="p">(</span><span class="kt">char</span> <span class="o">*</span><span class="p">)</span><span class="n">variable</span><span class="p">,</span> <span class="n">workspace</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">workspace</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="n">value</span> <span class="o">=</span> <span class="n">workspace</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;">A few things here.
(1) ast_func_read can fail if the function module isn't loaded. If that occurs, we should return something from this function that causes ARI to return a 4xx or 5xx error.
(2) Assigning workspace to value is unsafe here. The scope of workspace is limited to the block it is defined in. value has been told to point to something that, when it is dup'd, is technically out of scope. While this may "work", it isn't guaranteed to.</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;">Fixed #2.
For #1, I don't know that the design of this stuff would allow for such things in a sane way. Thoughts on the right way to do that?</pre>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
<p style="margin-top: 0;">On June 24th, 2013, 10:02 p.m. UTC, <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/2641/diff/1/?file=40088#file40088line126" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/stasis/control.c</a>
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(Diff revision 1)
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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="k">return</span> <span class="n">pbx_builtin_setvar_helper</span><span class="p">(</span><span class="n">control</span><span class="o">-></span><span class="n">channel</span><span class="p">,</span> <span class="n">variable</span><span class="p">,</span> <span class="n">value</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 should lock the channel as well</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;">pbx_builtin_setvar_helper() is stupid.</pre>
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<p style="margin-top: 0;">On June 24th, 2013, 10:02 p.m. UTC, <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/2641/diff/1/?file=40090#file40090line48" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/stasis_http/resource_asterisk.c</a>
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(Diff revision 1)
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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="n">value</span> <span class="o">=</span> <span class="n">pbx_builtin_getvar_helper</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="n">args</span><span class="o">-></span><span class="n">variable</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;">Should specifying a variable that doesn't exist (and returns NULL here) cause a 404 or some other error code?</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 don't think it should, no. An empty variable should be treated the same as an unset variable.</pre>
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<p>- Jason</p>
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<p>On June 24th, 2013, 5:48 p.m. UTC, Jason Parker wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Jason Parker.</div>
<p style="color: grey;"><i>Updated June 24, 2013, 5:48 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-21868">ASTERISK-21868</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;">Allows for reading channel variables (or functions), setting channel variables (or functions), getting global variables, setting global variables.</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;">All 4 things work. Failures occur in the few places they would be expected (invalid function name, etc).</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/include/asterisk/stasis_app.h <span style="color: grey">(392726)</span></li>
<li>/trunk/res/res_stasis_http_asterisk.c <span style="color: grey">(392726)</span></li>
<li>/trunk/res/res_stasis_http_channels.c <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis/control.c <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_http/resource_asterisk.h <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_http/resource_asterisk.c <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_http/resource_channels.h <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_http/resource_channels.c <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_json/resource_asterisk.h <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_json/resource_channels.h <span style="color: grey">(392726)</span></li>
<li>/trunk/res/stasis_json/resource_sounds.h <span style="color: grey">(392726)</span></li>
<li>/trunk/rest-api/api-docs/asterisk.json <span style="color: grey">(392726)</span></li>
<li>/trunk/rest-api/api-docs/channels.json <span style="color: grey">(392726)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/2641/diff/" style="margin-left: 3em;">View Diff</a></p>
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