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Add some safety measures when using gosub, especially when using the options

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for app_dial and app_queue to run a gosub when the call is answered.

* Check for the existence of the gosub target in gosub_exec. If it is nonexistent,
  then this will cause errors when we attempt to actually run the gosub, including
  a definite memory leak and potential crashes. Return an error in this situation
* Check the return value of pbx_exec in app_dial and app_queue before attempting
  to actually run the gosub routine. If there was an error, we should not attempt
  to run the gosub.
* Change a '|' to a ',' in app_queue.
* Add some extra curly braces where they had been missing previously.

(closes issue #13548)
Reported by: fiddur



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@160626 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2008-12-03 18:37:46 +00:00
parent aa16330ce3
commit a53877b469
3 changed files with 23 additions and 9 deletions
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11
apps/app_queue.c
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@@ -3982,7 +3982,7 @@ static int try_calling(struct queue_ent *qe, const char *options, char *announce
ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
gosub_args = NULL;
}
*gosub_argstart = '|';
*gosub_argstart = ',';
} else {
if (asprintf(&gosub_args, "%s,s,1", gosubexec) < 0) {
ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
@@ -3991,13 +3991,14 @@ static int try_calling(struct queue_ent *qe, const char *options, char *announce
}
if (gosub_args) {
res = pbx_exec(peer, application, gosub_args);
ast_pbx_run(peer);
if (!res) {
ast_pbx_run(peer);
}
free(gosub_args);
ast_debug(1, "Gosub exited with status %d\n", res);
} else
} else {
ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
res = 0;
}
} else {
ast_log(LOG_ERROR, "Could not find application Gosub\n");
res = -1;