gentoo-overlay/net-mail/qmail-autoresponder/files/qmail-autoresponder-2.0-clear-struct.patch

Patch: https://github.com/bruceg/qmail-autoresponder/commit/baea8ec70d62fbc50868074c050dcb89f1a43f63

From baea8ec70d62fbc50868074c050dcb89f1a43f63 Mon Sep 17 00:00:00 2001
From: Bruce Guenter <bruce@untroubled.org>
Date: Fri, 13 Apr 2018 10:39:45 -0600
Subject: [PATCH] options: Clear time struct before using

The strptime may not set all the fields in struct tm, so we need to
clear it before parsing, so that mktime doesn't use uninitialized data.
---
 options.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/options.c b/options.c
index 325ea83..ce63867 100644
--- a/options.c
+++ b/options.c
@@ -87,6 +87,7 @@ static const char* copy_time(void* ptr, const char* value, unsigned int length)
   }
   for (i = 0; i < sizeof time_formats / sizeof *time_formats; i++) {
     struct tm tm;
+    memset(&tm, 0, sizeof tm);
     if (strptime(value, time_formats[i], &tm) == value + length) {
       if ((*dest = mktime(&tm)) != (time_t)-1)
         return NULL;