From 1a5b4b38f3457a8f1423305cef4e85d05da47d62 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Thu, 6 Aug 2015 00:26:18 -0400
Subject: Add BufReader and vector-based serialization methods

---
 src/util/serialize.cpp | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

(limited to 'src/util/serialize.cpp')

diff --git a/src/util/serialize.cpp b/src/util/serialize.cpp
index c0168776e..ced5fc7cf 100644
--- a/src/util/serialize.cpp
+++ b/src/util/serialize.cpp
@@ -28,6 +28,77 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <iomanip>
 #include <vector>
 
+SerializationError eof_ser_err("Attempted read past end of data");
+
+////
+//// BufReader
+////
+
+bool BufReader::getStringNoEx(std::string *val)
+{
+	u16 num_chars;
+	if (!getU16NoEx(&num_chars))
+		return false;
+
+	if (pos + num_chars > size) {
+		pos -= sizeof(num_chars);
+		return false;
+	}
+
+	val->assign((const char *)data + pos, num_chars);
+	pos += num_chars;
+
+	return true;
+}
+
+bool BufReader::getWideStringNoEx(std::wstring *val)
+{
+	u16 num_chars;
+	if (!getU16NoEx(&num_chars))
+		return false;
+
+	if (pos + num_chars * 2 > size) {
+		pos -= sizeof(num_chars);
+		return false;
+	}
+
+	for (size_t i = 0; i != num_chars; i++) {
+		val->push_back(readU16(data + pos));
+		pos += 2;
+	}
+
+	return true;
+}
+
+bool BufReader::getLongStringNoEx(std::string *val)
+{
+	u32 num_chars;
+	if (!getU32NoEx(&num_chars))
+		return false;
+
+	if (pos + num_chars > size) {
+		pos -= sizeof(num_chars);
+		return false;
+	}
+
+	val->assign((const char *)data + pos, num_chars);
+	pos += num_chars;
+
+	return true;
+}
+
+bool BufReader::getRawDataNoEx(void *val, size_t len)
+{
+	if (pos + len > size)
+		return false;
+
+	memcpy(val, data + pos, len);
+	pos += len;
+
+	return true;
+}
+
+
 ////
 //// String
 ////
-- 
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