From 4aca87515a5083ae0e31ce3177189fd43b6d05ac Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sat, 3 Jan 2015 13:58:15 +0100
Subject: patch to Vanilla Tomato 1.28

---
 .../C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c     | 79 ++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c

(limited to 'release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c')

diff --git a/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c
new file mode 100644
index 00000000..0f0f8424
--- /dev/null
+++ b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/LZMA_Alone/LzmaRamDecode.c
@@ -0,0 +1,79 @@
+/* LzmaRamDecode.c */
+
+#include "LzmaRamDecode.h"
+#ifdef _SZ_ONE_DIRECTORY
+#include "LzmaDecode.h"
+#include "BranchX86.h"
+#else
+#include "../LZMA_C/LzmaDecode.h"
+#include "../Branch/BranchX86.h"
+#endif
+
+#define LZMA_PROPS_SIZE 14
+#define LZMA_SIZE_OFFSET 6
+
+int LzmaRamGetUncompressedSize(
+    const unsigned char *inBuffer, 
+    size_t inSize, 
+    size_t *outSize)
+{
+  unsigned int i;
+  if (inSize < LZMA_PROPS_SIZE)
+    return 1;
+  *outSize = 0;
+  for(i = 0; i < sizeof(size_t); i++)
+    *outSize += ((size_t)inBuffer[LZMA_SIZE_OFFSET + i]) << (8 * i);
+  for(; i < 8; i++)
+    if (inBuffer[LZMA_SIZE_OFFSET + i] != 0)
+      return 1;
+  return 0;
+}
+
+#define SZE_DATA_ERROR (1)
+#define SZE_OUTOFMEMORY (2)
+
+int LzmaRamDecompress(
+    const unsigned char *inBuffer, 
+    size_t inSize,
+    unsigned char *outBuffer,
+    size_t outSize,
+    size_t *outSizeProcessed,
+    void * (*allocFunc)(size_t size), 
+    void (*freeFunc)(void *))
+{
+  CLzmaDecoderState state;  /* it's about 24 bytes structure, if int is 32-bit */
+  int result;
+  SizeT outSizeProcessedLoc;
+  SizeT inProcessed;
+  int useFilter;
+  
+  if (inSize < LZMA_PROPS_SIZE)
+    return 1;
+  useFilter = inBuffer[0];
+
+  *outSizeProcessed = 0;
+  if (useFilter > 1)
+    return 1;
+
+  if (LzmaDecodeProperties(&state.Properties, inBuffer + 1, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
+    return 1;
+  state.Probs = (CProb *)allocFunc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
+  if (state.Probs == 0)
+    return SZE_OUTOFMEMORY;
+  
+  result = LzmaDecode(&state,
+    inBuffer + LZMA_PROPS_SIZE, (SizeT)inSize - LZMA_PROPS_SIZE, &inProcessed,
+    outBuffer, (SizeT)outSize, &outSizeProcessedLoc);
+  freeFunc(state.Probs);
+  if (result != LZMA_RESULT_OK)
+    return 1;
+  *outSizeProcessed = (size_t)outSizeProcessedLoc;
+  if (useFilter == 1)
+  {
+    UInt32 _prevMask;
+    UInt32 _prevPos;
+    x86_Convert_Init(_prevMask, _prevPos);
+    x86_Convert(outBuffer, (UInt32)outSizeProcessedLoc, 0, &_prevMask, &_prevPos, 0);
+  }
+  return 0;
+}
-- 
cgit v1.2.3-54-g00ecf