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-rw-r--r--source/l/mozjs60/patches/Always-use-the-equivalent-year-to-determine-the-time-zone.patch100
1 files changed, 100 insertions, 0 deletions
diff --git a/source/l/mozjs60/patches/Always-use-the-equivalent-year-to-determine-the-time-zone.patch b/source/l/mozjs60/patches/Always-use-the-equivalent-year-to-determine-the-time-zone.patch
new file mode 100644
index 000000000..81474a42b
--- /dev/null
+++ b/source/l/mozjs60/patches/Always-use-the-equivalent-year-to-determine-the-time-zone.patch
@@ -0,0 +1,100 @@
+From: =?utf-8?q?Andr=C3=A9_Bargull?= <andrebargull@googlemail.com>
+Date: Wed, 8 Nov 2017 03:23:41 -0800
+Subject: Always use the equivalent year to determine the time zone offset and
+ name
+
+Reviewed-by: Jeff Walden
+Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1415202
+Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1479687
+Origin: upstream
+Applied-upstream: 62, commit:https://hg.mozilla.org/mozilla-central/rev/ce9f1466ec78
+---
+ js/src/jsdate.cpp | 11 +++++++----
+ js/src/vm/Time.cpp | 14 ++++----------
+ js/src/vm/Time.h | 2 +-
+ 3 files changed, 12 insertions(+), 15 deletions(-)
+
+diff --git a/js/src/jsdate.cpp b/js/src/jsdate.cpp
+index 07af3d18c865..ff8fd6c3763c 100644
+--- a/js/src/jsdate.cpp
++++ b/js/src/jsdate.cpp
+@@ -2353,12 +2353,15 @@ static PRMJTime ToPRMJTime(double localTime, double utcTime) {
+ static size_t FormatTime(char* buf, int buflen, const char* fmt, double utcTime,
+ double localTime) {
+ PRMJTime prtm = ToPRMJTime(localTime, utcTime);
+- int eqivalentYear = IsRepresentableAsTime32(utcTime)
+- ? prtm.tm_year
+- : EquivalentYearForDST(prtm.tm_year);
++ // If an equivalent year was used to compute the date/time components, use
++ // the same equivalent year to determine the time zone name and offset in
++ // PRMJ_FormatTime(...).
++ int timeZoneYear = IsRepresentableAsTime32(utcTime)
++ ? prtm.tm_year
++ : EquivalentYearForDST(prtm.tm_year);
+ int offsetInSeconds = (int)floor((localTime - utcTime) / msPerSecond);
+
+- return PRMJ_FormatTime(buf, buflen, fmt, &prtm, eqivalentYear,
++ return PRMJ_FormatTime(buf, buflen, fmt, &prtm, timeZoneYear,
+ offsetInSeconds);
+ }
+
+diff --git a/js/src/vm/Time.cpp b/js/src/vm/Time.cpp
+index f59977f0d0e9..5ee4794b3e83 100644
+--- a/js/src/vm/Time.cpp
++++ b/js/src/vm/Time.cpp
+@@ -247,7 +247,7 @@ static void PRMJ_InvalidParameterHandler(const wchar_t* expression,
+
+ /* Format a time value into a buffer. Same semantics as strftime() */
+ size_t PRMJ_FormatTime(char* buf, int buflen, const char* fmt,
+- const PRMJTime* prtm, int equivalentYear,
++ const PRMJTime* prtm, int timeZoneYear,
+ int offsetInSeconds) {
+ size_t result = 0;
+ #if defined(XP_UNIX) || defined(XP_WIN)
+@@ -280,7 +280,8 @@ size_t PRMJ_FormatTime(char* buf, int buflen, const char* fmt,
+ * Fill out |td| to the time represented by |prtm|, leaving the
+ * timezone fields zeroed out. localtime_r will then fill in the
+ * timezone fields for that local time according to the system's
+- * timezone parameters.
++ * timezone parameters. Use |timeZoneYear| for the year to ensure the
++ * time zone name matches the time zone offset used by the caller.
+ */
+ struct tm td;
+ memset(&td, 0, sizeof(td));
+@@ -290,19 +291,12 @@ size_t PRMJ_FormatTime(char* buf, int buflen, const char* fmt,
+ td.tm_mday = prtm->tm_mday;
+ td.tm_mon = prtm->tm_mon;
+ td.tm_wday = prtm->tm_wday;
+- td.tm_year = prtm->tm_year - 1900;
++ td.tm_year = timeZoneYear - 1900;
+ td.tm_yday = prtm->tm_yday;
+ td.tm_isdst = prtm->tm_isdst;
+
+ time_t t = mktime(&td);
+
+- // If |prtm| cannot be represented in |time_t| the year is probably
+- // out of range, try again with the DST equivalent year.
+- if (t == static_cast<time_t>(-1)) {
+- td.tm_year = equivalentYear - 1900;
+- t = mktime(&td);
+- }
+-
+ // If either mktime or localtime_r failed, fill in the fallback time
+ // zone offset |offsetInSeconds| and set the time zone identifier to
+ // the empty string.
+diff --git a/js/src/vm/Time.h b/js/src/vm/Time.h
+index 3a51d869c922..37b7faeec028 100644
+--- a/js/src/vm/Time.h
++++ b/js/src/vm/Time.h
+@@ -49,7 +49,7 @@ inline void PRMJ_NowShutdown() {}
+
+ /* Format a time value into a buffer. Same semantics as strftime() */
+ extern size_t PRMJ_FormatTime(char* buf, int buflen, const char* fmt,
+- const PRMJTime* tm, int equivalentYear,
++ const PRMJTime* tm, int timeZoneYear,
+ int offsetInSeconds);
+
+ /**
+--
+2.21.0
+