[asterisk-security] [asterisk-dev] [Code Review] Fix memory leak in manager.c action originate when using channel variables

[Olle E Johansson]

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This is an automatically generated e-mail. To reply, visit:
https://reviewboard.asterisk.org/r/869/
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(Updated 2010-08-20 07:41:17.057308)


Review request for Asterisk Developers.


Summary (updated)
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The originate action supports using channel variables. These are allocated to a variable "vars" but never freed. In the case of asynchronos or "fast" originate, these are handed off as a pointer to the new thread.

This patch 
 - Moves the allocation of the variables until after a few checks that will return (to not have to free multiple times).
 - Frees the variables in originate
 - copies the variables to the new thread, which frees it's own copy when done

Separate fix is made for trunk. The function ast_variable_copy really belongs to config.c/h, but since we don't change API in releases, it's in manager.c for now, and will move home in the trunk version. 

(Have fixed the red dots in my changes)

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Trunk version now in 
https://origsvn.digium.com/svn/asterisk/team/oej/bufo-manager-varfix-trunk


This addresses bug 17891.
    https://issues.asterisk.org/view.php?id=17891


Diffs
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  /branches/1.4/main/manager.c 282966 

Diff: https://reviewboard.asterisk.org/r/869/diff


Testing
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Tested. Crashed. Will update to a working solution.


Thanks,

Olle E


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