don't crash if no group is specified (bug #4836)
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@6237 f38db490-d61c-443f-a65b-d21fe96a405b
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@ -33,8 +33,10 @@ static char *group_count_function_read(struct ast_channel *chan, char *cmd, char
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ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category));
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if (ast_strlen_zero(group)) {
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grp = pbx_builtin_getvar_helper(chan, category);
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ast_copy_string(group, grp, sizeof(group));
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if ((grp = pbx_builtin_getvar_helper(chan, category)))
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ast_copy_string(group, grp, sizeof(group));
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else
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return buf;
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}
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count = ast_app_group_get_count(group, category);
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