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manager: Fix crash when appending a manager channel variable

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In r399887, a minor performance improvement was introduced by not allocating
the manager variable struct if it wasn't used. Unfortunately, when directly
accessing an ast_channel struct, manager assumed that the struct was always
allocated. Since this was no longer the case, things got a bit crashy.

This fixes that problem by simply bypassing appending variables if the manager
channel variable struct isn't there.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@400058 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Jordan
2013-09-28 20:20:42 +00:00
parent 8a41aa9bf5
commit a1c1fc3538
1 changed files with 4 additions and 0 deletions
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4
main/manager.c
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@@ -5934,6 +5934,10 @@ static void append_channel_vars(struct ast_str **pbuf, struct ast_channel *chan)
vars = ast_channel_get_manager_vars(chan);
if (!vars) {
return;
}
AST_LIST_TRAVERSE(vars, var, entries) {
ast_str_append(pbuf, 0, "ChanVariable(%s): %s=%s\r\n", ast_channel_name(chan), var->name, var->value);
}