[asterisk-bugs] [Asterisk 0018371]: [patch] asterisk crash when dialing SIP/${var} where var is empty or not set

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18371 
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Reported By:                gbour
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18371
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 295998 
Request Review:              
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Date Submitted:             2010-11-24 08:58 CST
Last Modified:              2010-11-24 09:34 CST
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Summary:                    [patch] asterisk crash when dialing SIP/${var} where
var is empty or not set
Description: 
exten = 500,1,NoOp()
exten = 500,n,Set(var=)
exten = 500,n,Dial(SIP/${var})

if var is not set or empy, executing Dial(SIP/${var}) make asterisk crash
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 (0129108) gbour (reporter) - 2010-11-24 09:34
 https://issues.asterisk.org/view.php?id=18371#c129108 
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And here is the patch 

Issue History 
Date Modified    Username       Field                    Change               
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2010-11-24 09:34 gbour          Note Added: 0129108                          
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