From 98b02209a438ddd4358eda58870100287c3924d1 Mon Sep 17 00:00:00 2001
From: George Marques <george@gmarqu.es>
Date: Thu, 23 Jun 2016 13:57:45 -0300
Subject: [PATCH] Add sha256_buffer() function to String

---
 core/ustring.cpp      | 17 +++++++++++++++++
 core/ustring.h        |  1 +
 core/variant_call.cpp |  2 ++
 3 files changed, 20 insertions(+)

diff --git a/core/ustring.cpp b/core/ustring.cpp
index ea9a9d903e..43e3a9a0bd 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -2419,6 +2419,23 @@ Vector<uint8_t> String::md5_buffer() const {
 	return ret;
 };
 
+Vector<uint8_t> String::sha256_buffer() const {
+	CharString cs = utf8();
+	unsigned char hash[32];
+	sha256_context ctx;
+	sha256_init(&ctx);
+	sha256_hash(&ctx, (unsigned char*)cs.ptr(), cs.length());
+	sha256_done(&ctx, hash);
+
+	Vector<uint8_t> ret;
+	ret.resize(32);
+	for (int i = 0; i < 32; i++) {
+		ret[i] = hash[i];
+	}
+
+	return ret;
+}
+
 
 String String::insert(int p_at_pos,String p_string) const {
 
diff --git a/core/ustring.h b/core/ustring.h
index 692cb4e37d..bb57b11d88 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -196,6 +196,7 @@ public:
 	String md5_text() const;
 	String sha256_text() const;
 	Vector<uint8_t> md5_buffer() const;
+	Vector<uint8_t> sha256_buffer() const;
 
 	inline bool empty() const { return length() == 0; }
 
diff --git a/core/variant_call.cpp b/core/variant_call.cpp
index 34e5164b24..c0f8930eed 100644
--- a/core/variant_call.cpp
+++ b/core/variant_call.cpp
@@ -271,6 +271,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM0R(String,md5_text);
 	VCALL_LOCALMEM0R(String,sha256_text);
 	VCALL_LOCALMEM0R(String,md5_buffer);
+	VCALL_LOCALMEM0R(String,sha256_buffer);
 	VCALL_LOCALMEM0R(String,empty);
 	VCALL_LOCALMEM0R(String,is_abs_path);
 	VCALL_LOCALMEM0R(String,is_rel_path);
@@ -1322,6 +1323,7 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
 	ADDFUNC0(STRING,STRING,String,md5_text,varray());
 	ADDFUNC0(STRING,STRING,String,sha256_text,varray());
 	ADDFUNC0(STRING,RAW_ARRAY,String,md5_buffer,varray());
+	ADDFUNC0(STRING,RAW_ARRAY,String,sha256_buffer,varray());
 	ADDFUNC0(STRING,BOOL,String,empty,varray());
 	ADDFUNC0(STRING,BOOL,String,is_abs_path,varray());
 	ADDFUNC0(STRING,BOOL,String,is_rel_path,varray());