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

[noreply at bugs.digium.com]

The following issue has been ASSIGNED. 
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http://bugs.digium.com/view.php?id=12476 
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Reported By:                davidw
Assigned To:                russell
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Project:                    Asterisk
Issue ID:                   12476
Category:                   Channels/chan_agent
Reproducibility:            sometimes
Severity:                   crash
Priority:                   normal
Status:                     assigned
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 10:19 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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---------------------------------------------------------------------- 
 svnbot - 04-18-08 10:19  
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Repository: asterisk
Revision: 114248

U   branches/1.4/channels/chan_agent.c

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r114248 | russell | 2008-04-18 10:19:05 -0500 (Fri, 18 Apr 2008) | 5 lines

Ensure that we don't ast_strdupa(NULL)
(closes issue http://bugs.digium.com/view.php?id=12476)
Reported by: davidw
Patch by me

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http://svn.digium.com/view/asterisk?view=rev&revision=114248 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
04-18-08 10:19  svnbot         Checkin                                      
04-18-08 10:19  svnbot         Note Added: 0085689                          
04-18-08 10:19  svnbot         Status                   new => assigned     
04-18-08 10:19  svnbot         Assigned To               => russell         
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