From ad8c3040c10eb82cc8318648c74d2bb68e62f584 Mon Sep 17 00:00:00 2001
From: Rob Swindell <rob@synchro.net>
Date: Mon, 28 Dec 2020 20:31:35 -0800
Subject: [PATCH] More infinite/long event next-run-time brute force search
paranoia
Don't search more than 1500 days in the future for a next-run date match. This handles erroneous or just bizarre timed event configurations such as February-29 (once ever leap year) or April-31 (never).
---
src/sbbs3/data.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/sbbs3/data.cpp b/src/sbbs3/data.cpp
index f233f4f111..cbc899fb12 100644
--- a/src/sbbs3/data.cpp
+++ b/src/sbbs3/data.cpp
@@ -140,6 +140,7 @@ extern "C" time_t DLLCALL getnexteventtime(event_t* event)
{
struct tm tm;
time_t t = time(NULL);
+ time_t now = t;
if(event->misc & EVENT_DISABLED)
return 0;
@@ -160,6 +161,8 @@ extern "C" time_t DLLCALL getnexteventtime(event_t* event)
t += 24 * 60 * 60; /* already ran today, so add 24hrs */
do {
+ if(t > now + (1500 * 24 * 60 * 60)) /* Handle crazy configs, e.g. Feb-29, Apr-31 */
+ return 0;
if(localtime_r(&t, &tm) == NULL)
return 0;
if((event->days & (1 << tm.tm_wday))
--
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