[asterisk-bugs] [Asterisk 0015899]: crash on second 'dahdi destroy channel' if a var was set

[Asterisk Bug Tracker]

The following issue has been ASSIGNED. 
====================================================================== 
https://issues.asterisk.org/view.php?id=15899 
====================================================================== 
Reported By:                tzafrir
Assigned To:                jpeeler
====================================================================== 
Project:                    Asterisk
Issue ID:                   15899
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 218464 
Request Review:              
====================================================================== 
Date Submitted:             2009-09-15 06:19 CDT
Last Modified:              2009-10-06 14:28 CDT
====================================================================== 
Summary:                    crash on second 'dahdi destroy channel' if a var was
set
Description: 
dell*CLI> dahdi destroy channel 1
dell*CLI> dahdi destroy channel 2
dell*CLI>
Disconnected from Asterisk server
Executing last minute cleanups
Asterisk ending (0).

It will crash this way if any variable was set in chan_dahdi.conf using
setvar.

This is because of the following in chan_dahdi.c:11259 (function mkintf)

                if (conf->chan.vars) {
                        tmp->vars = conf->chan.vars;
                }

conf->chan.vars is thus common to all channels.

Fix should be to copy each variable seperately.
====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-10-06 14:28 svnbot         Status                   acknowledged =>
assigned
2009-10-06 14:28 svnbot         Assigned To               => jpeeler         
======================================================================