[asterisk-bugs] [Asterisk 0012476]: AMI Agents command tries to access null pointer to cid.cid_num for agent user channel

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The following issue has been SUBMITTED. 
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http://bugs.digium.com/view.php?id=12476 
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Reported By:                davidw
Assigned To:                
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Project:                    Asterisk
Issue ID:                   12476
Category:                   Channels/chan_agent
Reproducibility:            sometimes
Severity:                   crash
Priority:                   normal
Status:                     new
Asterisk Version:           SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 114060 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             04-18-2008 10:15 CDT
Last Modified:              04-18-2008 10:15 CDT
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Summary:                    AMI Agents command tries to access null pointer to
cid.cid_num for agent user channel
Description: 
Our AMI client issued an AMI Agents query, which it does after getting a
Dial event.  action_agents suffered a segmentation violation on:

1503              talkingtoChan =
ast_strdupa(ast_bridged_channel(p->owner)->cid
.cid_num);

Analysis of the dump indicates that it is almost certainly cid.cid_num on
the served channel that is the problem:

(gdb) print p->owner->_bridge.cid
$4 = {cid_dnid = 0x0, cid_num = 0x0, cid_name = 0x0, cid_ani = 0x0, 
  cid_rdnis = 0x0, cid_pres = 0, cid_ani2 = 0, cid_ton = 0, cid_tns = 0}

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Issue History 
Date Modified   Username       Field                    Change               
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04-18-08 10:15  davidw         Asterisk Version          => SVN             
04-18-08 10:15  davidw         SVN Branch (only for SVN checkou =>  1.4         
  
04-18-08 10:15  davidw         SVN Revision (number only!) => 114060          
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