# HG changeset patch
# User Pascal Bellard <pascal.bellard@slitaz.org>
# Date 1204490877 0
# Node ID bb5704323e2b6c7c5a0dac0febf59b01b5a994fa
# Parent  3a5e92c048e05558fe75781608e37e71f5adb7fb
Linux: export unlzma

diff -r 3a5e92c048e0 -r bb5704323e2b linux/receipt
--- a/linux/receipt	Sat Mar 01 12:55:33 2008 +0000
+++ b/linux/receipt	Sun Mar 02 20:47:57 2008 +0000
@@ -22,6 +22,7 @@
 	patch -p1 < ../stuff/config-acpi-$VERSION.u
 	patch -p1 < ../stuff/linux-utf8-$VERSION.u
 	patch -p1 < ../stuff/config-ieee1394-$VERSION.u
+	patch -p1 < ../stuff/linux-lzma-export.u
 	make oldconfig
 	make bzImage
 	make modules
diff -r 3a5e92c048e0 -r bb5704323e2b linux/stuff/linux-lzma-export.u
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/linux/stuff/linux-lzma-export.u	Sun Mar 02 20:47:57 2008 +0000
@@ -0,0 +1,67 @@
+--- linux-2.6.24.2/lib/decompress_unlzma.c
++++ linux-2.6.24.2/lib/decompress_unlzma.c
+@@ -321,7 +321,7 @@ typedef struct {
+ #define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS)
+ 
+ 
+-STATIC int unlzma(char *inbuf, int in_len, 
++int unlzma(char *inbuf, int in_len, 
+ 		   int(*fill)(void*,unsigned int),
+ 		   int(*writebb)(char*,unsigned int),
+ 		   int *posp)
+@@ -348,10 +348,21 @@ STATIC int unlzma(char *inbuf, int in_le
+ 
+ 	rc_init(&rc, fill, inbuf, in_len);
+ 
+-	for (i = 0; i < sizeof(header); i++) {
+-		if (rc.ptr >= rc.buffer_end)
+-			rc_read(&rc);
+-		((unsigned char *)&header)[i] = *rc.ptr++;
++	header.dict_size = header.dst_size = in_len;
++	if (inbuf && inbuf[0] == 0) {
++		const LZMA_LC = 3, LZMA_LP = 0, LZMA_PB = 2;
++		header.pos = (LZMA_PB * 45) + (LZMA_LP * 5) + LZMA_LC;
++		rc.ptr++;
++	}
++	else {
++		int hdrsize = sizeof(header);
++		if (inbuf && (1 + * (unsigned long *) &inbuf[9]) > 1U)
++			hdrsize = 5;
++		for (i = 0; i < hdrsize; i++) {
++			if (rc.ptr >= rc.buffer_end)
++				rc_read(&rc);
++			((unsigned char *)&header)[i] = *rc.ptr++;
++		}
+ 	}
+ 
+ 	if (header.pos >= (9 * 5 * 5))
+
+--- linux-2.6.24.2/lib/Makefile	
++++ linux-2.6.24.2/lib/Makefile	
+@@ -51,7 +51,7 @@ obj-$(CONFIG_LIBCRC32C)	+= libcrc32c.o
+ obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
+ 
+ obj-$(CONFIG_RD_BZIP2)	+= decompress_bunzip2.o
+-obj-$(CONFIG_RD_LZMA)	+= decompress_unlzma.o
++obj-$(CONFIG_RD_LZMA)	+= decompress_unlzma.o unlzma_syms.o
+ 
+ 
+ obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
+
+--- linux-2.6.24.2/lib/unlzma_syms.c	
++++ linux-2.6.24.2/lib/unlzma_syms.c	
+@@ -0,0 +1,14 @@
++/*
++ * linux/lib/unlzma_syms.c
++ *
++ * Exported symbols for the unlzma functionality.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++
++#include <linux/decompress_unlzma.h>
++
++EXPORT_SYMBOL(unlzma);
++MODULE_LICENSE("GPL");