From: Campo Weijerman <rfc822@nl.ibm.com>
Date: Mon, 18 Jul 2005 17:34:55 +0000 (+0200)
Subject: Re: AIX 5.2 localtime bug attack
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=3574fba9d64258926d8208a0796e6f0aef583eeb;p=p5sagit%2Fp5-mst-13.2.git

Re: AIX 5.2 localtime bug attack
Message-ID: <20050718153455.GA29381@python>

mday++ is also wday++ and yday++

p4raw-id: //depot/perl@25173
---

diff --git a/pp_sys.c b/pp_sys.c
index 63eebef..545765c 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -4572,14 +4572,16 @@ static struct tm *S_my_localtime (pTHX_ Time_t *tp)
      * Given that legal timezones are typically between GMT-12 and GMT+12
      * we turn back the clock 23 hours before calling the localtime
      * function, and add those to the return value. This will never cause
-     * day wrapping problems, since the edge case is Jan *19*
+     * day wrapping problems, since the edge case is Tue Jan *19*
      */
     T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
     P = localtime (&T);
     P->tm_hour += 23;
     if (P->tm_hour >= 24) {
 	P->tm_hour -= 24;
-	P->tm_mday++;
+	P->tm_mday++;	/* 18  -> 19  */
+	P->tm_wday++;	/* Mon -> Tue */
+	P->tm_yday++;	/* 18  -> 19  */
     }
     return (P);
 } /* S_my_localtime */