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Initialize data on the stack so that Park doesn't interpret random arguments.

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passdata was only being set in pbx_substitue_variables when arguments were
passed.

(closes issue #16406)
(closes issue #16586)
Reported by: DLNoah
Patches: 
      bug16586v2.patch uploaded by jpeeler (license 325)
Tested by: DLNoah



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@241366 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Jeff Peeler
2010-01-19 22:59:53 +00:00
parent 873989db91
commit 8fd9401e3d
1 changed files with 3 additions and 1 deletions
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4
main/pbx.c
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@@ -3970,8 +3970,10 @@ static void pbx_substitute_variables(char *passdata, int datalen, struct ast_cha
const char *tmp;
/* Nothing more to do */
if (!e->data)
if (!e->data) {
*passdata = '\0';
return;
}
/* No variables or expressions in e->data, so why scan it? */
if ((!(tmp = strchr(e->data, '$'))) || (!strstr(tmp, "${") && !strstr(tmp, "$["))) {