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Diffstat (limited to 'payloads/libpayload/liblzma/lzma.c')
-rw-r--r--payloads/libpayload/liblzma/lzma.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/payloads/libpayload/liblzma/lzma.c b/payloads/libpayload/liblzma/lzma.c
new file mode 100644
index 0000000000..fdda30d8c4
--- /dev/null
+++ b/payloads/libpayload/liblzma/lzma.c
@@ -0,0 +1,47 @@
+/*
+ * coreboot interface to memory-saving variant of LZMA decoder
+ *
+ * Copyright (C) 2006 Carl-Daniel Hailfinger
+ * Released under the BSD license
+ *
+ * Parts of this file are based on C/7zip/Compress/LZMA_C/LzmaTest.c from the LZMA
+ * SDK 4.42, which is written and distributed to public domain by Igor Pavlov.
+ *
+ */
+
+#include <lzma.h>
+#include <stdio.h>
+#include <string.h>
+#include "lzmadecode.c"
+
+unsigned long ulzma(unsigned char * src, unsigned char * dst)
+{
+ unsigned char properties[LZMA_PROPERTIES_SIZE];
+ UInt32 outSize;
+ SizeT inProcessed;
+ SizeT outProcessed;
+ int res;
+ CLzmaDecoderState state;
+ SizeT mallocneeds;
+ unsigned char scratchpad[15980];
+
+ memcpy(properties, src, LZMA_PROPERTIES_SIZE);
+ outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
+ if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
+ printf("lzma: Incorrect stream properties.\n");
+ return 0;
+ }
+ mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
+ if (mallocneeds > 15980) {
+ printf("lzma: Decoder scratchpad too small!\n");
+ return 0;
+ }
+ state.Probs = (CProb *)scratchpad;
+ res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
+ dst, outSize, &outProcessed);
+ if (res != 0) {
+ printf("lzma: Decoding error = %d\n", res);
+ return 0;
+ }
+ return outSize;
+}