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Lock around variables retrieved, and copy the values, if they stay persistent,

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since another thread could remove them.
(closes issue #12541)
 Reported by: snuffy
 Patches: 
       bug_12156_apps.diff uploaded by snuffy (license 35)
       Several additional changes by me


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114904 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2008-04-30 19:21:04 +00:00
parent 4c3aecfc55
commit 527c601d0c
10 changed files with 142 additions and 64 deletions
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9
apps/app_chanspy.c
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@@ -596,12 +596,15 @@ static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
if (ast_test_flag(flags, OPTION_EXIT)) {
const char *c;
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT")))
ast_channel_lock(chan);
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT"))) {
ast_copy_string(exitcontext, c, sizeof(exitcontext));
else if (!ast_strlen_zero(chan->macrocontext))
} else if (!ast_strlen_zero(chan->macrocontext)) {
ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
else
} else {
ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
}
ast_channel_unlock(chan);
}
ast_mutex_init(&chanspy_ds.lock);