From a0429c3baa9d17010c8487f84e84f09d4faf567c Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Sun, 25 Jul 2021 16:24:09 +0300
Subject: [PATCH] add le data conversions to utils

---
 client/src/util.c | 30 ++++++++++++++++++++++++++++++
 client/src/util.h |  8 ++++++++
 2 files changed, 38 insertions(+)

diff --git a/client/src/util.c b/client/src/util.c
index ed6ca6e7c..e8d4da4da 100644
--- a/client/src/util.c
+++ b/client/src/util.c
@@ -503,6 +503,36 @@ void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSiz
     }
 }
 
+uint16_t MemLeToUint2byte(uint8_t *data) {
+    return (data[1] << 8) + data[0];
+}
+
+uint32_t MemLeToUint3byte(uint8_t *data) {
+    return (data[2] << 16) + (data[1] << 8) + data[0];
+}
+
+uint32_t MemLeToUint4byte(uint8_t *data) {
+    return (data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
+}
+
+void Uint2byteToMemLe(uint8_t *data, uint16_t value) {
+    data[0] = (value >> 8) & 0xff;
+    data[1] = value & 0xff;
+}
+
+void Uint3byteToMemLe(uint8_t *data, uint32_t value) {
+    data[0] = (value >> 16) & 0xff;
+    data[1] = (value >> 8) & 0xff;
+    data[2] = value & 0xff;
+}
+
+void Uint4byteToMemLe(uint8_t *data, uint32_t value) {
+    data[0] = (value >> 24) & 0xff;
+    data[1] = (value >> 16) & 0xff;
+    data[2] = (value >> 8) & 0xff;
+    data[3] = value & 0xff;
+}
+
 //  -------------------------------------------------------------------------
 //  string parameters lib
 //  -------------------------------------------------------------------------
diff --git a/client/src/util.h b/client/src/util.h
index 9357eb1d0..d2d8d0fa5 100644
--- a/client/src/util.h
+++ b/client/src/util.h
@@ -64,6 +64,14 @@ void bytes_to_bytebits(void *src, size_t srclen, void *dest);
 uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize);
 void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSize, uint8_t *dest);
 
+// LE to/from memory
+uint16_t MemLeToUint2byte(uint8_t *data);
+uint32_t MemLeToUint3byte(uint8_t *data);
+uint32_t MemLeToUint4byte(uint8_t *data);
+void Uint2byteToMemLe(uint8_t *data, uint16_t value);
+void Uint3byteToMemLe(uint8_t *data, uint32_t value);
+void Uint4byteToMemLe(uint8_t *data, uint32_t value);
+
 // parameter helper functions
 int param_getlength(const char *line, int paramnum);
 char param_getchar(const char *line, int paramnum);