From af32bb9c4f4f06e92de3435ed2db3153c0701094 Mon Sep 17 00:00:00 2001
From: bigbiff bigbiff <bigbiff@teamw.in>
Date: Tue, 18 Dec 2018 18:39:53 -0500
Subject: MTP FFS updates:

This update splits old MTP code and new MTP code from Google
into two trees, legacy and ffs. Depending on the SDK level,
the build system will select the correct version. The reason
for separating the versions out are due to older android trees
not supporting the updated MTP code from Google.

Most MTP code is from Google, with additions needed from
implementing the Java functions in C++ for TWRP and FFS.

We assume if you are in android-9.0 or above, your kernel
has support for FFS over MTP. Verify that your init.rc
is mounting the MTP FFS driver to the proper location.

Change-Id: I4b107b239bd9bc5699527f9c8c77d9079f264a7e
---
 mtp/legacy/MtpUtils.cpp | 83 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 mtp/legacy/MtpUtils.cpp

(limited to 'mtp/legacy/MtpUtils.cpp')

diff --git a/mtp/legacy/MtpUtils.cpp b/mtp/legacy/MtpUtils.cpp
new file mode 100644
index 000000000..4ad59fd44
--- /dev/null
+++ b/mtp/legacy/MtpUtils.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2014 TeamWin - bigbiff and Dees_Troy mtp database conversion to C++
+ */
+
+#include <stdio.h>
+#include <time.h>
+// Not available in 5.0
+//#include <cutils/tztime.h>
+#include "MtpUtils.h"
+#include "MtpDebug.h"
+
+
+/*
+DateTime strings follow a compatible subset of the definition found in ISO 8601, and
+take the form of a Unicode string formatted as: "YYYYMMDDThhmmss.s". In this
+representation, YYYY shall be replaced by the year, MM replaced by the month (01-12),
+DD replaced by the day (01-31), T is a constant character 'T' delimiting time from date,
+hh is replaced by the hour (00-23), mm is replaced by the minute (00-59), and ss by the
+second (00-59). The ".s" is optional, and represents tenths of a second.
+*/
+
+bool parseDateTime(const char* dateTime, time_t& outSeconds) {
+	int year, month, day, hour, minute, second;
+	struct tm tm;
+
+	if (sscanf(dateTime, "%04d%02d%02dT%02d%02d%02d",
+			&year, &month, &day, &hour, &minute, &second) != 6)
+		return false;
+	const char* tail = dateTime + 15;
+	// skip optional tenth of second
+	if (tail[0] == '.' && tail[1])
+		tail += 2;
+	//FIXME - support +/-hhmm
+	bool useUTC = (tail[0] == 'Z');
+
+	// hack to compute timezone
+	time_t dummy;
+	localtime_r(&dummy, &tm);
+
+	tm.tm_sec = second;
+	tm.tm_min = minute;
+	tm.tm_hour = hour;
+	tm.tm_mday = day;
+	tm.tm_mon = month - 1;  // mktime uses months in 0 - 11 range
+	tm.tm_year = year - 1900;
+	tm.tm_wday = 0;
+	tm.tm_isdst = -1;
+	//if (useUTC) {
+	outSeconds = mktime(&tm);
+	//}
+	/* mktime_tz is blocking :P
+	else {
+		outSeconds = mktime_tz(&tm, tm.tm_zone);
+	}
+	*/
+
+	return true;
+}
+
+void formatDateTime(time_t seconds, char* buffer, int bufferLength) {
+	struct tm tm;
+
+	localtime_r(&seconds, &tm);
+	snprintf(buffer, bufferLength, "%04d%02d%02dT%02d%02d%02d",
+		tm.tm_year + 1900, 
+		tm.tm_mon + 1, // localtime_r uses months in 0 - 11 range
+		tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+}
+
-- 
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