+++ /dev/null
-diff -Nur squashfs4.0/squashfs-tools/compressor.c squashfs4.0-lzma-snapshot/squashfs-tools/compressor.c
---- squashfs4.0/squashfs-tools/compressor.c 1970-01-01 01:00:00.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/compressor.c 2009-10-20 06:03:37.000000000 +0200
-@@ -0,0 +1,78 @@
-+/*
-+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-+ * Phillip Lougher <phillip@lougher.demon.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * compressor.c
-+ */
-+
-+#include <stdio.h>
-+#include <string.h>
-+#include "compressor.h"
-+#include "squashfs_fs.h"
-+
-+extern int gzip_compress(void **, char *, char *, int, int, int *);
-+extern int gzip_uncompress(char *, char *, int, int, int *);
-+extern int lzma_compress(void **, char *, char *, int, int, int *);
-+extern int lzma_uncompress(char *, char *, int, int, int *);
-+
-+struct compressor compressor[] = {
-+ { gzip_compress, gzip_uncompress, ZLIB_COMPRESSION, "gzip", 1 },
-+#ifdef LZMA_SUPPORT
-+ { lzma_compress, lzma_uncompress, LZMA_COMPRESSION, "lzma", 1 },
-+#else
-+ { NULL, NULL, LZMA_COMPRESSION, "lzma", 0 },
-+#endif
-+ { NULL, NULL , 0, "unknown", 0}
-+};
-+
-+
-+struct compressor *lookup_compressor(char *name)
-+{
-+ int i;
-+
-+ for(i = 0; compressor[i].id; i++)
-+ if(strcmp(compressor[i].name, name) == 0)
-+ break;
-+
-+ return &compressor[i];
-+}
-+
-+
-+struct compressor *lookup_compressor_id(int id)
-+{
-+ int i;
-+
-+ for(i = 0; compressor[i].id; i++)
-+ if(id == compressor[i].id)
-+ break;
-+
-+ return &compressor[i];
-+}
-+
-+
-+void display_compressors(char *indent, char *def_comp)
-+{
-+ int i;
-+
-+ for(i = 0; compressor[i].id; i++)
-+ if(compressor[i].supported)
-+ fprintf(stderr, "%s\t%s%s\n", indent,
-+ compressor[i].name,
-+ strcmp(compressor[i].name, def_comp) == 0 ?
-+ " (default)" : "");
-+}
-diff -Nur squashfs4.0/squashfs-tools/compressor.h squashfs4.0-lzma-snapshot/squashfs-tools/compressor.h
---- squashfs4.0/squashfs-tools/compressor.h 1970-01-01 01:00:00.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/compressor.h 2009-10-20 06:03:37.000000000 +0200
-@@ -0,0 +1,33 @@
-+/*
-+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-+ * Phillip Lougher <phillip@lougher.demon.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * compressor.h
-+ */
-+
-+struct compressor {
-+ int (*compress)(void **, char *, char *, int, int, int *);
-+ int (*uncompress)(char *, char *, int, int, int *);
-+ int id;
-+ char *name;
-+ int supported;
-+};
-+
-+extern struct compressor *lookup_compressor(char *);
-+extern struct compressor *lookup_compressor_id(int);
-+extern void display_compressors(char *, char *);
-diff -Nur squashfs4.0/squashfs-tools/gzip_wrapper.c squashfs4.0-lzma-snapshot/squashfs-tools/gzip_wrapper.c
---- squashfs4.0/squashfs-tools/gzip_wrapper.c 1970-01-01 01:00:00.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/gzip_wrapper.c 2009-10-20 06:03:37.000000000 +0200
-@@ -0,0 +1,80 @@
-+/*
-+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-+ * Phillip Lougher <phillip@lougher.demon.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * gzip_wrapper.c
-+ */
-+
-+#include <stdlib.h>
-+#include <zlib.h>
-+
-+int gzip_compress(void **strm, char *d, char *s, int size, int block_size,
-+ int *error)
-+{
-+ int res = 0;
-+ z_stream *stream = *strm;
-+
-+ if(stream == NULL) {
-+ if((stream = *strm = malloc(sizeof(z_stream))) == NULL)
-+ goto failed;
-+
-+ stream->zalloc = Z_NULL;
-+ stream->zfree = Z_NULL;
-+ stream->opaque = 0;
-+
-+ if((res = deflateInit(stream, 9)) != Z_OK)
-+ goto failed;
-+ } else if((res = deflateReset(stream)) != Z_OK)
-+ goto failed;
-+
-+ stream->next_in = (unsigned char *) s;
-+ stream->avail_in = size;
-+ stream->next_out = (unsigned char *) d;
-+ stream->avail_out = block_size;
-+
-+ res = deflate(stream, Z_FINISH);
-+ if(res == Z_STREAM_END)
-+ /*
-+ * Success, return the compressed size.
-+ */
-+ return (int) stream->total_out;
-+ if(res == Z_OK)
-+ /*
-+ * Output buffer overflow. Return out of buffer space
-+ */
-+ return 0;
-+failed:
-+ /*
-+ * All other errors return failure, with the compressor
-+ * specific error code in *error
-+ */
-+ *error = res;
-+ return -1;
-+}
-+
-+
-+int gzip_uncompress(char *d, char *s, int size, int block_size, int *error)
-+{
-+ int res;
-+ unsigned long bytes = block_size;
-+
-+ res = uncompress((unsigned char *) d, &bytes,
-+ (const unsigned char *) s, size);
-+
-+ *error = res;
-+ return res == Z_OK ? (int) bytes : -1;
-+}
-diff -Nur squashfs4.0/squashfs-tools/lzma_wrapper.c squashfs4.0-lzma-snapshot/squashfs-tools/lzma_wrapper.c
---- squashfs4.0/squashfs-tools/lzma_wrapper.c 1970-01-01 01:00:00.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/lzma_wrapper.c 2009-10-14 05:32:57.000000000 +0200
-@@ -0,0 +1,93 @@
-+/*
-+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-+ * Phillip Lougher <phillip@lougher.demon.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * lzma_wrapper.c
-+ */
-+
-+#include <LzmaLib.h>
-+
-+#define LZMA_HEADER_SIZE (LZMA_PROPS_SIZE + 8)
-+
-+int lzma_compress(void **strm, char *dest, char *src, int size,int block_size,
-+ int *error)
-+{
-+ unsigned char *d = (unsigned char *) dest, *s = (unsigned char *) src;
-+ size_t props_size = LZMA_PROPS_SIZE,
-+ outlen = block_size - LZMA_HEADER_SIZE;
-+ int res;
-+
-+ res = LzmaCompress(d + LZMA_HEADER_SIZE, &outlen, s, size, d,
-+ &props_size, 5, block_size, 3, 0, 2, 32, 1);
-+
-+ if(res == SZ_ERROR_OUTPUT_EOF) {
-+ /*
-+ * Output buffer overflow. Return out of buffer space error
-+ */
-+ return 0;
-+ }
-+
-+ if(res != SZ_OK) {
-+ /*
-+ * All other errors return failure, with the compressor
-+ * specific error code in *error
-+ */
-+ *error = res;
-+ return -1;
-+ }
-+
-+ /*
-+ * Fill in the 8 byte little endian uncompressed size field in the
-+ * LZMA header. 8 bytes is excessively large for squashfs but
-+ * this is the standard LZMA header and which is expected by the kernel
-+ * code
-+ */
-+ d[LZMA_PROPS_SIZE] = size & 255;
-+ d[LZMA_PROPS_SIZE + 1] = (size >> 8) & 255;
-+ d[LZMA_PROPS_SIZE + 2] = (size >> 16) & 255;
-+ d[LZMA_PROPS_SIZE + 3] = (size >> 24) & 255;
-+ d[LZMA_PROPS_SIZE + 4] = 0;
-+ d[LZMA_PROPS_SIZE + 5] = 0;
-+ d[LZMA_PROPS_SIZE + 6] = 0;
-+ d[LZMA_PROPS_SIZE + 7] = 0;
-+
-+ /*
-+ * Success, return the compressed size. Outlen returned by the LZMA
-+ * compressor does not include the LZMA header space
-+ */
-+ return outlen + LZMA_HEADER_SIZE;
-+}
-+
-+
-+int lzma_uncompress(char *dest, char *src, int size, int block_size,
-+ int *error)
-+{
-+ unsigned char *d = (unsigned char *) dest, *s = (unsigned char *) src;
-+ size_t outlen, inlen = size - LZMA_HEADER_SIZE;
-+ int res;
-+
-+ outlen = s[LZMA_PROPS_SIZE] |
-+ (s[LZMA_PROPS_SIZE + 1] << 8) |
-+ (s[LZMA_PROPS_SIZE + 2] << 16) |
-+ (s[LZMA_PROPS_SIZE + 3] << 24);
-+
-+ res = LzmaUncompress(d, &outlen, s + LZMA_HEADER_SIZE, &inlen,
-+ s, LZMA_PROPS_SIZE);
-+
-+ *error = res;
-+ return res == SZ_OK ? outlen : -1;
-+}
-diff -Nur squashfs4.0/squashfs-tools/Makefile squashfs4.0-lzma-snapshot/squashfs-tools/Makefile
---- squashfs4.0/squashfs-tools/Makefile 2009-04-05 04:03:36.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/Makefile 2009-10-22 06:17:12.000000000 +0200
-@@ -1,40 +1,76 @@
-+#
-+# Building LZMA support
-+# Download LZMA sdk (4.65 used in development, other versions may work),
-+# set LZMA_DIR to unpacked source, and uncomment next line
-+LZMA_SUPPORT = 1
-+LZMA_DIR = ../../lzma-4.65
-+
-+#Compression default.
-+COMP_DEFAULT = gzip
-+
-+INCLUDEDIR = -I.
- INSTALL_DIR = /usr/local/bin
-
--INCLUDEDIR = .
-+MKSQUASHFS_OBJS = mksquashfs.o read_fs.o sort.o swap.o pseudo.o compressor.o \
-+ gzip_wrapper.o
-+
-+UNSQUASHFS_OBJS = unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o \
-+ unsquash-4.o swap.o compressor.o gzip_wrapper.o
-
--CFLAGS := -I$(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -O2
-+CFLAGS = $(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE \
-+ -D_GNU_SOURCE -DCOMP_DEFAULT=\"$(COMP_DEFAULT)\" -O2 -Wall
-
-+ifdef LZMA_SUPPORT
-+LZMA_OBJS = $(LZMA_DIR)/C/Alloc.o $(LZMA_DIR)/C/LzFind.o \
-+ $(LZMA_DIR)/C/LzmaDec.o $(LZMA_DIR)/C/LzmaEnc.o $(LZMA_DIR)/C/LzmaLib.o
-+INCLUDEDIR += -I$(LZMA_DIR)/C
-+CFLAGS += -DLZMA_SUPPORT
-+MKSQUASHFS_OBJS += lzma_wrapper.o $(LZMA_OBJS)
-+UNSQUASHFS_OBJS += lzma_wrapper.o $(LZMA_OBJS)
-+endif
-+
-+.PHONY: all
- all: mksquashfs unsquashfs
-
--mksquashfs: mksquashfs.o read_fs.o sort.o swap.o pseudo.o
-- $(CC) mksquashfs.o read_fs.o sort.o swap.o pseudo.o -lz -lpthread -lm -o $@
-+mksquashfs: $(MKSQUASHFS_OBJS)
-+ $(CC) $(MKSQUASHFS_OBJS) -lz -lpthread -lm -o $@
-+
-+mksquashfs.o: mksquashfs.c squashfs_fs.h mksquashfs.h global.h sort.h \
-+ squashfs_swap.h
-
--mksquashfs.o: mksquashfs.c squashfs_fs.h mksquashfs.h global.h sort.h squashfs_swap.h Makefile
-+read_fs.o: read_fs.c squashfs_fs.h read_fs.h global.h squashfs_swap.h
-
--read_fs.o: read_fs.c squashfs_fs.h read_fs.h global.h squashfs_swap.h Makefile
-+sort.o: sort.c squashfs_fs.h global.h sort.h
-
--sort.o: sort.c squashfs_fs.h global.h sort.h Makefile
-+swap.o: swap.c
-
--swap.o: swap.c Makefile
-+pseudo.o: pseudo.c pseudo.h
-
--pseudo.o: pseudo.c pseudo.h Makefile
-+compressor.o: compressor.c compressor.h
-
--unsquashfs: unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o unsquash-4.o swap.o
-- $(CC) unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o unsquash-4.o swap.o -lz -lpthread -lm -o $@
-+unsquashfs: $(UNSQUASHFS_OBJS)
-+ $(CC) $(UNSQUASHFS_OBJS) -lz -lpthread -lm -o $@
-
--unsquashfs.o: unsquashfs.h unsquashfs.c squashfs_fs.h squashfs_swap.h squashfs_compat.h global.h Makefile
-+unsquashfs.o: unsquashfs.h unsquashfs.c squashfs_fs.h squashfs_swap.h \
-+ squashfs_compat.h global.h
-
--unsquash-1.o: unsquashfs.h unsquash-1.c squashfs_fs.h squashfs_compat.h global.h Makefile
-+unsquash-1.o: unsquashfs.h unsquash-1.c squashfs_fs.h squashfs_compat.h \
-+ global.h
-
--unsquash-2.o: unsquashfs.h unsquash-2.c unsquashfs.h squashfs_fs.h squashfs_compat.h global.h Makefile
-+unsquash-2.o: unsquashfs.h unsquash-2.c unsquashfs.h squashfs_fs.h \
-+ squashfs_compat.h global.h
-
--unsquash-3.o: unsquashfs.h unsquash-3.c squashfs_fs.h squashfs_compat.h global.h Makefile
-+unsquash-3.o: unsquashfs.h unsquash-3.c squashfs_fs.h squashfs_compat.h \
-+ global.h
-
--unsquash-4.o: unsquashfs.h unsquash-4.c squashfs_fs.h squashfs_swap.h global.h Makefile
-+unsquash-4.o: unsquashfs.h unsquash-4.c squashfs_fs.h squashfs_swap.h \
-+ global.h
-
-+.PHONY: clean
- clean:
- -rm -f *.o mksquashfs unsquashfs
-
-+.PHONY: install
- install: mksquashfs unsquashfs
- mkdir -p $(INSTALL_DIR)
- cp mksquashfs $(INSTALL_DIR)
-diff -Nur squashfs4.0/squashfs-tools/mksquashfs.c squashfs4.0-lzma-snapshot/squashfs-tools/mksquashfs.c
---- squashfs4.0/squashfs-tools/mksquashfs.c 2009-04-05 23:22:48.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/mksquashfs.c 2009-10-20 06:03:38.000000000 +0200
-@@ -36,7 +36,6 @@
- #include <errno.h>
- #include <dirent.h>
- #include <string.h>
--#include <zlib.h>
- #include <stdlib.h>
- #include <signal.h>
- #include <setjmp.h>
-@@ -47,6 +46,7 @@
- #include <math.h>
- #include <regex.h>
- #include <fnmatch.h>
-+#include <sys/wait.h>
-
- #ifndef linux
- #define __BYTE_ORDER BYTE_ORDER
-@@ -64,6 +64,7 @@
- #include "global.h"
- #include "sort.h"
- #include "pseudo.h"
-+#include "compressor.h"
-
- #ifdef SQUASHFS_TRACE
- #define TRACE(s, args...) do { \
-@@ -245,10 +246,8 @@
- /* list of root directory entries read from original filesystem */
- int old_root_entries = 0;
- struct old_root_entry_info {
-- char name[SQUASHFS_NAME_LEN + 1];
-- squashfs_inode inode;
-- int type;
-- int inode_number;
-+ char *name;
-+ struct inode_info inode;
- };
- struct old_root_entry_info *old_root_entry;
-
-@@ -371,10 +370,15 @@
- int reader_buffer_size;
- int fragment_buffer_size;
-
-+/* compression operations structure */
-+static struct compressor *comp;
-+char *comp_name = COMP_DEFAULT;
-+
- char *read_from_disk(long long start, unsigned int avail_bytes);
- void add_old_root_entry(char *name, squashfs_inode inode, int inode_number,
- int type);
--extern int read_super(int fd, squashfs_super_block *sBlk, char *source);
-+extern struct compressor *read_super(int fd, squashfs_super_block *sBlk,
-+ char *source);
- extern long long read_filesystem(char *root_name, int fd,
- squashfs_super_block *sBlk, char **cinode_table, char **data_cache,
- char **cdirectory_table, char **directory_data_cache,
-@@ -831,83 +835,32 @@
- }
-
-
--unsigned int mangle2(z_stream **strm, char *d, char *s, int size,
-+int mangle2(void **strm, char *d, char *s, int size,
- int block_size, int uncompressed, int data_block)
- {
-- unsigned long c_byte;
-- unsigned int res;
-- z_stream *stream = *strm;
--
-- if(uncompressed)
-- goto notcompressed;
--
-- if(stream == NULL) {
-- if((stream = *strm = malloc(sizeof(z_stream))) == NULL)
-- BAD_ERROR("mangle::compress failed, not enough "
-- "memory\n");
--
-- stream->zalloc = Z_NULL;
-- stream->zfree = Z_NULL;
-- stream->opaque = 0;
--
-- if((res = deflateInit(stream, 9)) != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- BAD_ERROR("zlib::compress failed, not enough "
-- "memory\n");
-- else if(res == Z_STREAM_ERROR)
-- BAD_ERROR("zlib::compress failed, not a valid "
-- "compression level\n");
-- else if(res == Z_VERSION_ERROR)
-- BAD_ERROR("zlib::compress failed, incorrect "
-- "zlib version\n");
-- else
-- BAD_ERROR("zlib::compress failed, unknown "
-- "error %d\n", res);
-- }
-- } else if((res = deflateReset(stream)) != Z_OK) {
-- if(res == Z_STREAM_ERROR)
-- BAD_ERROR("zlib::compress failed, stream state "
-- "inconsistent\n");
-- else
-- BAD_ERROR("zlib::compress failed, unknown error %d\n",
-- res);
-- }
-+ int error, c_byte = 0;
-
-- stream->next_in = (unsigned char *) s;
-- stream->avail_in = size;
-- stream->next_out = (unsigned char *) d;
-- stream->avail_out = block_size;
--
-- res = deflate(stream, Z_FINISH);
-- if(res != Z_STREAM_END && res != Z_OK) {
-- if(res == Z_STREAM_ERROR)
-- BAD_ERROR("zlib::compress failed, stream state "
-- "inconsistent\n");
-- else if(res == Z_BUF_ERROR)
-- BAD_ERROR("zlib::compress failed, no progress possible"
-- "\n");
-- else
-- BAD_ERROR("zlib::compress failed, unknown error %d\n",
-- res);
-+ if(!uncompressed) {
-+ c_byte = comp->compress(strm, d, s, size, block_size, &error);
-+ if(c_byte == -1)
-+ BAD_ERROR("mangle2:: %s compress failed with error "
-+ "code %d\n", comp->name, error);
- }
-
-- c_byte = stream->total_out;
--
-- if(res != Z_STREAM_END || c_byte >= size) {
--notcompressed:
-+ if(c_byte == 0 || c_byte >= size) {
- memcpy(d, s, size);
- return size | (data_block ? SQUASHFS_COMPRESSED_BIT_BLOCK :
- SQUASHFS_COMPRESSED_BIT);
- }
-
-- return (unsigned int) c_byte;
-+ return c_byte;
- }
-
-
--unsigned int mangle(char *d, char *s, int size, int block_size,
-+int mangle(char *d, char *s, int size, int block_size,
- int uncompressed, int data_block)
- {
-- static z_stream *stream = NULL;
-+ static void *stream = NULL;
-
- return mangle2(&stream, d, s, size, block_size, uncompressed,
- data_block);
-@@ -1660,8 +1613,7 @@
- pthread_mutex_unlock(&fragment_mutex);
-
- if(SQUASHFS_COMPRESSED_BLOCK(disk_fragment->size)) {
-- int res;
-- unsigned long bytes = block_size;
-+ int error, res;
- char *data;
-
- if(compressed_buffer)
-@@ -1669,19 +1621,11 @@
- else
- data = read_from_disk(start_block, size);
-
-- res = uncompress((unsigned char *) buffer->data, &bytes,
-- (const unsigned char *) data, size);
-- if(res != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- BAD_ERROR("zlib::uncompress failed, not enough "
-- "memory\n");
-- else if(res == Z_BUF_ERROR)
-- BAD_ERROR("zlib::uncompress failed, not enough "
-- "room in output buffer\n");
-- else
-- BAD_ERROR("zlib::uncompress failed,"
-- " unknown error %d\n", res);
-- }
-+ res = comp->uncompress(buffer->data, data, size, block_size,
-+ &error);
-+ if(res == -1)
-+ BAD_ERROR("%s uncompress failed with error code %d\n",
-+ comp->name, error);
- } else if(compressed_buffer)
- memcpy(buffer->data, compressed_buffer->data, size);
- else
-@@ -1733,9 +1677,7 @@
- entry->buffer->block = bytes;
- bytes += compressed_size;
- fragments_outstanding --;
-- pthread_mutex_unlock(&fragment_mutex);
- queue_put(to_writer, entry->buffer);
-- pthread_mutex_lock(&fragment_mutex);
- TRACE("fragment_locked writing fragment %d, compressed size %d"
- "\n", entry->fragment, compressed_size);
- free(entry);
-@@ -1758,6 +1700,8 @@
- pthread_mutex_lock(&fragment_mutex);
- insert_fragment_list(&frag_locked_list, entry);
- pthread_mutex_unlock(&fragment_mutex);
-+
-+ return TRUE;
- }
-
-
-@@ -1824,7 +1768,9 @@
- unsigned short c_byte;
- char cbuffer[(SQUASHFS_METADATA_SIZE << 2) + 2];
-
-+#ifdef SQUASHFS_TRACE
- long long obytes = bytes;
-+#endif
-
- for(i = 0; i < meta_blocks; i++) {
- int avail_bytes = length > SQUASHFS_METADATA_SIZE ?
-@@ -2170,11 +2116,85 @@
- }
-
-
-+static int seq = 0;
-+void reader_read_process(struct dir_ent *dir_ent)
-+{
-+ struct file_buffer *prev_buffer = NULL, *file_buffer;
-+ int status, res, byte, count = 0;
-+ int file = get_pseudo_file(dir_ent->inode->pseudo_id)->fd;
-+ int child = get_pseudo_file(dir_ent->inode->pseudo_id)->child;
-+ long long bytes = 0;
-+
-+ while(1) {
-+ file_buffer = cache_get(reader_buffer, 0, 0);
-+ file_buffer->sequence = seq ++;
-+
-+ byte = read_bytes(file, file_buffer->data, block_size);
-+ if(byte == -1)
-+ goto read_err;
-+
-+ file_buffer->size = byte;
-+ file_buffer->file_size = -1;
-+ file_buffer->block = count ++;
-+ file_buffer->error = FALSE;
-+ file_buffer->fragment = FALSE;
-+ bytes += byte;
-+
-+ if(byte == 0)
-+ break;
-+
-+ /*
-+ * Update estimated_uncompressed block count. This is done
-+ * on every block rather than waiting for all blocks to be
-+ * read incase write_file_process() is running in parallel
-+ * with this. Otherwise cur uncompressed block count may
-+ * get ahead of the total uncompressed block count.
-+ */
-+ estimated_uncompressed ++;
-+
-+ if(prev_buffer)
-+ queue_put(from_reader, prev_buffer);
-+ prev_buffer = file_buffer;
-+ }
-+
-+ /*
-+ * Update inode file size now that the size of the dynamic pseudo file
-+ * is known. This is needed for the -info option.
-+ */
-+ dir_ent->inode->buf.st_size = bytes;
-+
-+ res = waitpid(child, &status, 0);
-+ if(res == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 0)
-+ goto read_err;
-+
-+ if(prev_buffer == NULL)
-+ prev_buffer = file_buffer;
-+ else {
-+ cache_block_put(file_buffer);
-+ seq --;
-+ }
-+ prev_buffer->file_size = bytes;
-+ prev_buffer->fragment = !no_fragments &&
-+ (count == 2 || always_use_fragments) && (byte < block_size);
-+ queue_put(from_reader, prev_buffer);
-+
-+ return;
-+
-+read_err:
-+ if(prev_buffer) {
-+ cache_block_put(file_buffer);
-+ seq --;
-+ file_buffer = prev_buffer;
-+ }
-+ file_buffer->error = TRUE;
-+ queue_put(from_deflate, file_buffer);
-+}
-+
-+
- void reader_read_file(struct dir_ent *dir_ent)
- {
- struct stat *buf = &dir_ent->inode->buf, buf2;
- struct file_buffer *file_buffer;
-- static int index = 0;
- int blocks, byte, count, expected, file, frag_block;
- long long bytes, read_size;
-
-@@ -2202,7 +2222,7 @@
- if(file_buffer)
- queue_put(from_reader, file_buffer);
- file_buffer = cache_get(reader_buffer, 0, 0);
-- file_buffer->sequence = index ++;
-+ file_buffer->sequence = seq ++;
-
- byte = file_buffer->size = read_bytes(file, file_buffer->data,
- block_size);
-@@ -2238,7 +2258,7 @@
-
- read_err:
- file_buffer = cache_get(reader_buffer, 0, 0);
-- file_buffer->sequence = index ++;
-+ file_buffer->sequence = seq ++;
- read_err2:
- file_buffer->error = TRUE;
- queue_put(from_deflate, file_buffer);
-@@ -2262,9 +2282,14 @@
- for(i = 0; i < dir->count; i++) {
- struct dir_ent *dir_ent = dir->list[i];
- struct stat *buf = &dir_ent->inode->buf;
-- if(dir_ent->data)
-+ if(dir_ent->inode->root_entry)
- continue;
-
-+ if(dir_ent->inode->pseudo_file) {
-+ reader_read_process(dir_ent);
-+ continue;
-+ }
-+
- switch(buf->st_mode & S_IFMT) {
- case S_IFREG:
- reader_read_file(dir_ent);
-@@ -2365,7 +2390,7 @@
-
- void *deflator(void *arg)
- {
-- z_stream *stream = NULL;
-+ void *stream = NULL;
- int oldstate;
-
- pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate);
-@@ -2402,7 +2427,7 @@
-
- void *frag_deflator(void *arg)
- {
-- z_stream *stream = NULL;
-+ void *stream = NULL;
- int oldstate;
-
- pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate);
-@@ -2426,8 +2451,8 @@
- write_buffer->block = bytes;
- bytes += compressed_size;
- fragments_outstanding --;
-- pthread_mutex_unlock(&fragment_mutex);
- queue_put(to_writer, write_buffer);
-+ pthread_mutex_unlock(&fragment_mutex);
- TRACE("Writing fragment %lld, uncompressed size %d, "
- "compressed size %d\n", file_buffer->block,
- file_buffer->size, compressed_size);
-@@ -2674,6 +2699,98 @@
- }
-
-
-+int write_file_process(squashfs_inode *inode, struct dir_ent *dir_ent,
-+ struct file_buffer *read_buffer, int *duplicate_file)
-+{
-+ long long read_size, file_bytes, start;
-+ struct fragment *fragment;
-+ unsigned int *block_list = NULL;
-+ int block = 0, status;
-+ long long sparse = 0;
-+ struct file_buffer *fragment_buffer = NULL;
-+
-+ *duplicate_file = FALSE;
-+
-+ lock_fragments();
-+
-+ file_bytes = 0;
-+ start = bytes;
-+ while (1) {
-+ read_size = read_buffer->file_size;
-+ if(read_buffer->fragment && read_buffer->c_byte)
-+ fragment_buffer = read_buffer;
-+ else {
-+ block_list = realloc(block_list, (block + 1) *
-+ sizeof(unsigned int));
-+ if(block_list == NULL)
-+ BAD_ERROR("Out of memory allocating block_list"
-+ "\n");
-+ block_list[block ++] = read_buffer->c_byte;
-+ if(read_buffer->c_byte) {
-+ read_buffer->block = bytes;
-+ bytes += read_buffer->size;
-+ cache_rehash(read_buffer, read_buffer->block);
-+ file_bytes += read_buffer->size;
-+ queue_put(to_writer, read_buffer);
-+ } else {
-+ sparse += read_buffer->size;
-+ cache_block_put(read_buffer);
-+ }
-+ }
-+ inc_progress_bar();
-+
-+ if(read_size != -1)
-+ break;
-+
-+ read_buffer = get_file_buffer(from_deflate);
-+ if(read_buffer->error)
-+ goto read_err;
-+ }
-+
-+ unlock_fragments();
-+ fragment = get_and_fill_fragment(fragment_buffer);
-+ cache_block_put(fragment_buffer);
-+
-+ if(duplicate_checking)
-+ add_non_dup(read_size, file_bytes, block_list, start, fragment,
-+ 0, 0, FALSE);
-+ file_count ++;
-+ total_bytes += read_size;
-+
-+ if(read_size < (1LL << 32) && start < (1LL << 32) && sparse == 0)
-+ create_inode(inode, dir_ent, SQUASHFS_FILE_TYPE, read_size,
-+ start, block, block_list, fragment, NULL, 0);
-+ else
-+ create_inode(inode, dir_ent, SQUASHFS_LREG_TYPE, read_size,
-+ start, block, block_list, fragment, NULL, sparse);
-+
-+ if(duplicate_checking == FALSE)
-+ free(block_list);
-+
-+ return 0;
-+
-+read_err:
-+ cur_uncompressed -= block;
-+ status = read_buffer->error;
-+ bytes = start;
-+ if(!block_device) {
-+ int res;
-+
-+ queue_put(to_writer, NULL);
-+ if(queue_get(from_writer) != 0)
-+ EXIT_MKSQUASHFS();
-+ res = ftruncate(fd, bytes);
-+ if(res != 0)
-+ BAD_ERROR("Failed to truncate dest file because %s\n",
-+ strerror(errno));
-+ }
-+ unlock_fragments();
-+ free(block_list);
-+ cache_block_put(read_buffer);
-+ return status;
-+}
-+
-+
- int write_file_blocks(squashfs_inode *inode, struct dir_ent *dir_ent,
- long long read_size, struct file_buffer *read_buffer,
- int *duplicate_file)
-@@ -2941,7 +3058,10 @@
-
- read_size = read_buffer->file_size;
-
-- if(read_size == 0) {
-+ if(read_size == -1)
-+ status = write_file_process(inode, dir_ent, read_buffer,
-+ duplicate_file);
-+ else if(read_size == 0) {
- write_file_empty(inode, dir_ent, duplicate_file);
- cache_block_put(read_buffer);
- } else if(read_buffer->fragment && read_buffer->c_byte)
-@@ -3036,6 +3156,8 @@
-
- memcpy(&inode->buf, buf, sizeof(struct stat));
- inode->read = FALSE;
-+ inode->root_entry = FALSE;
-+ inode->pseudo_file = FALSE;
- inode->inode = SQUASHFS_INVALID_BLK;
- inode->nlink = 1;
-
-@@ -3056,7 +3178,7 @@
-
-
- inline void add_dir_entry(char *name, char *pathname, struct dir_info *sub_dir,
-- struct inode_info *inode_info, void *data, struct dir_info *dir)
-+ struct inode_info *inode_info, struct dir_info *dir)
- {
- if((dir->count % DIR_ENTRIES) == 0) {
- dir->list = realloc(dir->list, (dir->count + DIR_ENTRIES) *
-@@ -3075,8 +3197,7 @@
- NULL;
- dir->list[dir->count]->inode = inode_info;
- dir->list[dir->count]->dir = sub_dir;
-- dir->list[dir->count]->our_dir = dir;
-- dir->list[dir->count++]->data = data;
-+ dir->list[dir->count++]->our_dir = dir;
- dir->byte_count += strlen(name) + sizeof(squashfs_dir_entry);
- }
-
-@@ -3128,10 +3249,10 @@
-
- if(dir->count < old_root_entries)
- for(i = 0; i < old_root_entries; i++) {
-- if(old_root_entry[i].type == SQUASHFS_DIR_TYPE)
-+ if(old_root_entry[i].inode.type == SQUASHFS_DIR_TYPE)
- dir->directory_count ++;
-- add_dir_entry(old_root_entry[i].name, "", NULL, NULL,
-- &old_root_entry[i], dir);
-+ add_dir_entry(old_root_entry[i].name, "", NULL,
-+ &old_root_entry[i].inode, dir);
- }
-
- while(index < source) {
-@@ -3167,10 +3288,10 @@
-
- if(dir->count < old_root_entries)
- for(i = 0; i < old_root_entries; i++) {
-- if(old_root_entry[i].type == SQUASHFS_DIR_TYPE)
-+ if(old_root_entry[i].inode.type == SQUASHFS_DIR_TYPE)
- dir->directory_count ++;
-- add_dir_entry(old_root_entry[i].name, "", NULL, NULL,
-- &old_root_entry[i], dir);
-+ add_dir_entry(old_root_entry[i].name, "", NULL,
-+ &old_root_entry[i].inode, dir);
- }
-
- if((d_name = readdir(dir->linuxdir)) != NULL) {
-@@ -3215,7 +3336,7 @@
- int current_count;
-
- while((current_count = dir_info->current_count++) < dir_info->count)
-- if(dir_info->list[current_count]->data)
-+ if(dir_info->list[current_count]->inode->root_entry)
- continue;
- else
- return dir_info->list[current_count];
-@@ -3240,11 +3361,11 @@
- int current_count;
-
- while((current_count = dir_info->current_count++) < dir_info->count)
-- if(dir_info->list[current_count]->data)
-- add_dir(dir_info->list[current_count]->data->inode,
-- dir_info->list[current_count]->data->inode_number,
-+ if(dir_info->list[current_count]->inode->root_entry)
-+ add_dir(dir_info->list[current_count]->inode->inode,
-+ dir_info->list[current_count]->inode->inode_number,
- dir_info->list[current_count]->name,
-- dir_info->list[current_count]->data->type, dir);
-+ dir_info->list[current_count]->inode->type, dir);
- else
- return dir_info->list[current_count];
- return NULL;
-@@ -3313,7 +3434,6 @@
- dir_ent->name = dir_ent->pathname = strdup(pathname);
- dir_ent->dir = dir_info;
- dir_ent->our_dir = NULL;
-- dir_ent->data = NULL;
- dir_info->dir_ent = dir_ent;
-
- if(sorted)
-@@ -3383,7 +3503,7 @@
- sub_dir = NULL;
-
- add_dir_entry(dir_name, filename, sub_dir, lookup_inode(&buf),
-- NULL, dir);
-+ dir);
- }
-
- scan1_freedir(dir);
-@@ -3399,7 +3519,7 @@
- struct dir_ent *dir_ent;
- struct pseudo_entry *pseudo_ent;
- struct stat buf;
-- static pseudo_ino = 1;
-+ static int pseudo_ino = 1;
-
- if(dir == NULL && (dir = scan1_opendir("")) == NULL)
- return NULL;
-@@ -3415,6 +3535,29 @@
-
- while((pseudo_ent = pseudo_readdir(pseudo)) != NULL) {
- dir_ent = scan2_lookup(dir, pseudo_ent->name);
-+ if(pseudo_ent->dev->type == 's') {
-+ struct stat *buf;
-+ if(dir_ent == NULL) {
-+ ERROR("Pseudo set file \"%s\" does not exist "
-+ "in source filesystem. Ignoring\n",
-+ pseudo_ent->pathname);
-+ continue;
-+ }
-+ if(dir_ent->inode->root_entry) {
-+ ERROR("Pseudo set file \"%s\" is a pre-existing"
-+ " file in the filesystem being appended"
-+ " to. It cannot be modified. "
-+ "Ignoring!\n", pseudo_ent->pathname);
-+ continue;
-+ }
-+ buf = &dir_ent->inode->buf;
-+ buf->st_mode = (buf->st_mode & S_IFMT) |
-+ pseudo_ent->dev->mode;
-+ buf->st_uid = pseudo_ent->dev->uid;
-+ buf->st_gid = pseudo_ent->dev->gid;
-+ continue;
-+ }
-+
- if(dir_ent) {
- ERROR("Pseudo file \"%s\" exists in source filesystem "
- "\"%s\"\n", pseudo_ent->pathname,
-@@ -3444,8 +3587,29 @@
- buf.st_mtime = time(NULL);
- buf.st_ino = pseudo_ino ++;
-
-- add_dir_entry(pseudo_ent->name, pseudo_ent->pathname, sub_dir,
-- lookup_inode(&buf), NULL, dir);
-+ if(pseudo_ent->dev->type == 'f') {
-+#ifdef USE_TMP_FILE
-+ struct stat buf2;
-+ int res = stat(pseudo_ent->dev->filename, &buf2);
-+ if(res == -1) {
-+ ERROR("Stat on pseudo file \"%s\" failed, "
-+ "skipping...", pseudo_ent->pathname);
-+ continue;
-+ }
-+ buf.st_size = buf2.st_size;
-+ add_dir_entry(pseudo_ent->name,
-+ pseudo_ent->dev->filename, sub_dir,
-+ lookup_inode(&buf), dir);
-+#else
-+ struct inode_info *inode = lookup_inode(&buf);
-+ inode->pseudo_id = pseudo_ent->dev->pseudo_id;
-+ inode->pseudo_file = TRUE;
-+ add_dir_entry(pseudo_ent->name, pseudo_ent->pathname,
-+ sub_dir, inode, dir);
-+#endif
-+ } else
-+ add_dir_entry(pseudo_ent->name, pseudo_ent->pathname,
-+ sub_dir, lookup_inode(&buf), dir);
- }
-
- scan2_freedir(dir);
-@@ -3482,8 +3646,9 @@
- &duplicate_file);
- INFO("file %s, uncompressed size %lld "
- "bytes %s\n", filename,
-- buf->st_size, duplicate_file ?
-- "DUPLICATE" : "");
-+ (long long) buf->st_size,
-+ duplicate_file ? "DUPLICATE" :
-+ "");
- break;
-
- case S_IFDIR:
-@@ -3557,6 +3722,7 @@
- INFO("file %s, uncompressed "
- "size %lld bytes LINK"
- "\n", filename,
-+ (long long)
- buf->st_size);
- break;
- case SQUASHFS_SYMLINK_TYPE:
-@@ -3667,10 +3833,11 @@
- BAD_ERROR("Out of memory in old root directory entries "
- "reallocation\n");
-
-- strcpy(old_root_entry[old_root_entries].name, name);
-- old_root_entry[old_root_entries].inode = inode;
-- old_root_entry[old_root_entries].inode_number = inode_number;
-- old_root_entry[old_root_entries++].type = type;
-+ old_root_entry[old_root_entries].name = strdup(name);
-+ old_root_entry[old_root_entries].inode.inode = inode;
-+ old_root_entry[old_root_entries].inode.inode_number = inode_number;
-+ old_root_entry[old_root_entries].inode.type = type;
-+ old_root_entry[old_root_entries++].inode.root_entry = TRUE;
- }
-
-
-@@ -4137,7 +4304,7 @@
-
-
- #define VERSION() \
-- printf("mksquashfs version 4.0 (2009/04/05)\n");\
-+ printf("mksquashfs version 4.1-CVS (2009/09/20)\n");\
- printf("copyright (C) 2009 Phillip Lougher <phillip@lougher.demon.co.uk>\n\n"); \
- printf("This program is free software; you can redistribute it and/or\n");\
- printf("modify it under the terms of the GNU General Public License\n");\
-@@ -4172,26 +4339,28 @@
- source_path = argv + 1;
- source = i - 2;
- for(; i < argc; i++) {
-- if(strcmp(argv[i], "-pf") == 0) {
-+ if(strcmp(argv[i], "-comp") == 0) {
- if(++i == argc) {
-- ERROR("%s: -pf missing filename\n", argv[0]);
-+ ERROR("%s: -comp missing compression type\n",
-+ argv[0]);
- exit(1);
- }
-- if(read_pseudo_file(&pseudo, argv[i]) == FALSE) {
-- ERROR("Failed to parse pseudo file \"%s\"\n",
-- argv[i]);
-+ comp_name = argv[i];
-+ } else if(strcmp(argv[i], "-pf") == 0) {
-+ if(++i == argc) {
-+ ERROR("%s: -pf missing filename\n", argv[0]);
- exit(1);
- }
-+ if(read_pseudo_file(&pseudo, argv[i]) == FALSE)
-+ exit(1);
- } else if(strcmp(argv[i], "-p") == 0) {
- if(++i == argc) {
- ERROR("%s: -p missing pseudo file definition\n",
- argv[0]);
- exit(1);
- }
-- if(read_pseudo_def(&pseudo, argv[i]) == FALSE) {
-- ERROR("Failed to parse pseudo definition\n");
-+ if(read_pseudo_def(&pseudo, argv[i]) == FALSE)
- exit(1);
-- }
- } else if(strcmp(argv[i], "-recover") == 0) {
- if(++i == argc) {
- ERROR("%s: -recover missing recovery file\n",
-@@ -4394,34 +4563,16 @@
- printOptions:
- ERROR("SYNTAX:%s source1 source2 ... dest [options] "
- "[-e list of exclude\ndirs/files]\n", argv[0]);
-- ERROR("\nOptions are\n");
-- ERROR("-version\t\tprint version, licence and "
-- "copyright message\n");
-- ERROR("-recover <name>\t\trecover filesystem data "
-- "using recovery file <name>\n");
-- ERROR("-no-recovery\t\tdon't generate a recovery "
-- "file\n");
-- ERROR("-info\t\t\tprint files written to filesystem\n");
-- ERROR("-no-exports\t\tdon't make the filesystem "
-- "exportable via NFS\n");
-- ERROR("-no-progress\t\tdon't display the progress "
-- "bar\n");
-- ERROR("-no-sparse\t\tdon't detect sparse files\n");
-+ ERROR("\nFilesystem build options:\n");
-+ ERROR("-comp <comp>\t\tselect <comp> compression\n");
-+ ERROR("\t\t\tCompressors available:\n");
-+ display_compressors("\t\t\t", COMP_DEFAULT);
- ERROR("-b <block_size>\t\tset data block to "
- "<block_size>. Default %d bytes\n",
- SQUASHFS_FILE_SIZE);
-- ERROR("-processors <number>\tUse <number> processors."
-- " By default will use number of\n");
-- ERROR("\t\t\tprocessors available\n");
-- ERROR("-read-queue <size>\tSet input queue to <size> "
-- "Mbytes. Default %d Mbytes\n",
-- READER_BUFFER_DEFAULT);
-- ERROR("-write-queue <size>\tSet output queue to <size> "
-- "Mbytes. Default %d Mbytes\n",
-- WRITER_BUFFER_DEFAULT);
-- ERROR("-fragment-queue <size>\tSet fagment queue to "
-- "<size> Mbytes. Default %d Mbytes\n",
-- FRAGMENT_BUFFER_DEFAULT);
-+ ERROR("-no-exports\t\tdon't make the filesystem "
-+ "exportable via NFS\n");
-+ ERROR("-no-sparse\t\tdon't detect sparse files\n");
- ERROR("-noI\t\t\tdo not compress inode table\n");
- ERROR("-noD\t\t\tdo not compress data blocks\n");
- ERROR("-noF\t\t\tdo not compress fragment blocks\n");
-@@ -4430,13 +4581,34 @@
- "files larger than block size\n");
- ERROR("-no-duplicates\t\tdo not perform duplicate "
- "checking\n");
-- ERROR("-noappend\t\tdo not append to existing "
-- "filesystem\n");
-+ ERROR("-all-root\t\tmake all files owned by root\n");
-+ ERROR("-force-uid uid\t\tset all file uids to uid\n");
-+ ERROR("-force-gid gid\t\tset all file gids to gid\n");
-+ ERROR("-nopad\t\t\tdo not pad filesystem to a multiple "
-+ "of 4K\n");
- ERROR("-keep-as-directory\tif one source directory is "
- "specified, create a root\n");
- ERROR("\t\t\tdirectory containing that directory, "
- "rather than the\n");
- ERROR("\t\t\tcontents of the directory\n");
-+ ERROR("\nFilesystem filter options:\n");
-+ ERROR("-p <pseudo-definition>\tAdd pseudo file definition\n");
-+ ERROR("-pf <pseudo-file>\tAdd list of pseudo file definitions\n");
-+ ERROR("-sort <sort_file>\tsort files according to "
-+ "priorities in <sort_file>. One\n");
-+ ERROR("\t\t\tfile or dir with priority per line. "
-+ "Priority -32768 to\n");
-+ ERROR("\t\t\t32767, default priority 0\n");
-+ ERROR("-ef <exclude_file>\tlist of exclude dirs/files."
-+ " One per line\n");
-+ ERROR("-wildcards\t\tAllow extended shell wildcards "
-+ "(globbing) to be used in\n\t\t\texclude "
-+ "dirs/files\n");
-+ ERROR("-regex\t\t\tAllow POSIX regular expressions to "
-+ "be used in exclude\n\t\t\tdirs/files\n");
-+ ERROR("\nFilesystem append options:\n");
-+ ERROR("-noappend\t\tdo not append to existing "
-+ "filesystem\n");
- ERROR("-root-becomes <name>\twhen appending source "
- "files/directories, make the\n");
- ERROR("\t\t\toriginal root become a subdirectory in "
-@@ -4444,11 +4616,29 @@
- ERROR("\t\t\tcalled <name>, rather than adding the new "
- "source items\n");
- ERROR("\t\t\tto the original root\n");
-- ERROR("-all-root\t\tmake all files owned by root\n");
-- ERROR("-force-uid uid\t\tset all file uids to uid\n");
-- ERROR("-force-gid gid\t\tset all file gids to gid\n");
-- ERROR("-nopad\t\t\tdo not pad filesystem to a multiple "
-- "of 4K\n");
-+ ERROR("\nMksquashfs runtime options:\n");
-+ ERROR("-version\t\tprint version, licence and "
-+ "copyright message\n");
-+ ERROR("-recover <name>\t\trecover filesystem data "
-+ "using recovery file <name>\n");
-+ ERROR("-no-recovery\t\tdon't generate a recovery "
-+ "file\n");
-+ ERROR("-info\t\t\tprint files written to filesystem\n");
-+ ERROR("-no-progress\t\tdon't display the progress "
-+ "bar\n");
-+ ERROR("-processors <number>\tUse <number> processors."
-+ " By default will use number of\n");
-+ ERROR("\t\t\tprocessors available\n");
-+ ERROR("-read-queue <size>\tSet input queue to <size> "
-+ "Mbytes. Default %d Mbytes\n",
-+ READER_BUFFER_DEFAULT);
-+ ERROR("-write-queue <size>\tSet output queue to <size> "
-+ "Mbytes. Default %d Mbytes\n",
-+ WRITER_BUFFER_DEFAULT);
-+ ERROR("-fragment-queue <size>\tSet fagment queue to "
-+ "<size> Mbytes. Default %d Mbytes\n",
-+ FRAGMENT_BUFFER_DEFAULT);
-+ ERROR("\nMiscellaneous options:\n");
- ERROR("-root-owned\t\talternative name for -all-root"
- "\n");
- ERROR("-noInodeCompression\talternative name for -noI"
-@@ -4457,20 +4647,6 @@
- "\n");
- ERROR("-noFragmentCompression\talternative name for "
- "-noF\n");
-- ERROR("-sort <sort_file>\tsort files according to "
-- "priorities in <sort_file>. One\n");
-- ERROR("\t\t\tfile or dir with priority per line. "
-- "Priority -32768 to\n");
-- ERROR("\t\t\t32767, default priority 0\n");
-- ERROR("-ef <exclude_file>\tlist of exclude dirs/files."
-- " One per line\n");
-- ERROR("-wildcards\t\tAllow extended shell wildcards "
-- "(globbing) to be used in\n\t\t\texclude "
-- "dirs/files\n");
-- ERROR("-regex\t\t\tAllow POSIX regular expressions to "
-- "be used in exclude\n\t\t\tdirs/files\n");
-- ERROR("-p <pseudo-definition>\tAdd pseudo file definition\n");
-- ERROR("-pf <pseudo-file>\tAdd list of pseudo file definitions\n");
- exit(1);
- }
- }
-@@ -4548,11 +4724,10 @@
- fclose(fd);
- } else if(strcmp(argv[i], "-e") == 0)
- break;
-- else if(strcmp(argv[i], "-b") == 0 ||
-- strcmp(argv[i], "-root-becomes") == 0 ||
-+ else if(strcmp(argv[i], "-root-becomes") == 0 ||
- strcmp(argv[i], "-sort") == 0 ||
- strcmp(argv[i], "-pf") == 0 ||
-- strcmp(argv[i], "-p") == 0)
-+ strcmp(argv[i], "-comp") == 0)
- i++;
-
- if(i != argc) {
-@@ -4574,11 +4749,10 @@
- sorted ++;
- } else if(strcmp(argv[i], "-e") == 0)
- break;
-- else if(strcmp(argv[i], "-b") == 0 ||
-- strcmp(argv[i], "-root-becomes") == 0 ||
-+ else if(strcmp(argv[i], "-root-becomes") == 0 ||
- strcmp(argv[i], "-ef") == 0 ||
- strcmp(argv[i], "-pf") == 0 ||
-- strcmp(argv[i], "-p") == 0)
-+ strcmp(argv[i], "-comp") == 0)
- i++;
-
- #ifdef SQUASHFS_TRACE
-@@ -4586,7 +4760,8 @@
- #endif
-
- if(!delete) {
-- if(read_super(fd, &sBlk, argv[source + 1]) == 0) {
-+ comp = read_super(fd, &sBlk, argv[source + 1]);
-+ if(comp == NULL) {
- ERROR("Failed to read existing filesystem - will not "
- "overwrite - ABORTING!\n");
- ERROR("To force Mksquashfs to write to this block "
-@@ -4603,6 +4778,15 @@
- always_use_fragments = SQUASHFS_ALWAYS_FRAGMENTS(sBlk.flags);
- duplicate_checking = SQUASHFS_DUPLICATES(sBlk.flags);
- exportable = SQUASHFS_EXPORTABLE(sBlk.flags);
-+ } else {
-+ comp = lookup_compressor(comp_name);
-+ if(!comp->supported) {
-+ ERROR("FATAL_ERROR: Compressor \"%s\" is not "
-+ "supported!\n", comp_name);
-+ ERROR("Compressors available:\n");
-+ display_compressors("", COMP_DEFAULT);
-+ EXIT_MKSQUASHFS();
-+ }
- }
-
- initialise_threads();
-@@ -4648,8 +4832,8 @@
- "size %d\n", SQUASHFS_MAJOR, s_minor, argv[source + 1],
- block_size);
- printf("All -b, -noI, -noD, -noF, no-duplicates, no-fragments, "
-- "-always-use-fragments and -exportable options ignored"
-- "\n");
-+ "-always-use-fragments,\n-exportable and -comp options "
-+ "ignored\n");
- printf("\nIf appending is not wanted, please re-run with "
- "-noappend specified!\n\n");
-
-@@ -4803,8 +4987,7 @@
-
- sBlk.bytes_used = bytes;
-
-- /* Only compression supported */
-- sBlk.compression = ZLIB_COMPRESSION;
-+ sBlk.compression = comp->id;
-
- /* Xattrs are not currently supported */
- sBlk.xattr_table_start = SQUASHFS_INVALID_BLK;
-@@ -4820,6 +5003,8 @@
-
- close(fd);
-
-+ delete_pseudo_files();
-+
- if(recovery_file[0] != '\0')
- unlink(recovery_file);
-
-@@ -4827,9 +5012,9 @@
- * sizeof(unsigned short) + guid_count * sizeof(unsigned short) +
- sizeof(squashfs_super_block);
-
-- printf("\n%sSquashfs %d.%d filesystem, data block size %d\n",
-- exportable ? "Exportable " : "", SQUASHFS_MAJOR, SQUASHFS_MINOR,
-- block_size);
-+ printf("\n%sSquashfs %d.%d filesystem, %s compressed, data block size"
-+ " %d\n", exportable ? "Exportable " : "", SQUASHFS_MAJOR,
-+ SQUASHFS_MINOR, comp->name, block_size);
- printf("\t%s data, %s metadata, %s fragments\n",
- noD ? "uncompressed" : "compressed", noI ? "uncompressed" :
- "compressed", no_fragments ? "no" : noF ? "uncompressed" :
-diff -Nur squashfs4.0/squashfs-tools/pseudo.c squashfs4.0-lzma-snapshot/squashfs-tools/pseudo.c
---- squashfs4.0/squashfs-tools/pseudo.c 2009-04-05 04:01:58.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/pseudo.c 2009-10-20 06:03:38.000000000 +0200
-@@ -30,6 +30,7 @@
- #include <string.h>
- #include <stdlib.h>
- #include <sys/types.h>
-+#include <sys/wait.h>
-
- #include "pseudo.h"
-
-@@ -55,6 +56,9 @@
- #define TRUE 1
- #define FALSE 0
-
-+struct pseudo_dev **pseudo_file = NULL;
-+int pseudo_count = 0;
-+
- static void dump_pseudo(struct pseudo *pseudo, char *string)
- {
- int i;
-@@ -99,7 +103,7 @@
- char *target, char *alltarget)
- {
- char targname[1024];
-- int i, error;
-+ int i;
-
- target = get_component(target, targname);
-
-@@ -128,12 +132,8 @@
- if(target[0] == '\0') {
- /* at leaf pathname component */
- pseudo->name[i].pseudo = NULL;
-- pseudo->name[i].dev = malloc(sizeof(struct pseudo_dev));
-- if(pseudo->name[i].dev == NULL)
-- BAD_ERROR("failed to allocate pseudo file\n");
- pseudo->name[i].pathname = strdup(alltarget);
-- memcpy(pseudo->name[i].dev, pseudo_dev,
-- sizeof(struct pseudo_dev));
-+ pseudo->name[i].dev = pseudo_dev;
- } else {
- /* recurse adding child components */
- pseudo->name[i].dev = NULL;
-@@ -169,15 +169,9 @@
- if(target[0] == '\0') {
- if(pseudo->name[i].dev == NULL &&
- pseudo_dev->type == 'd') {
-- pseudo->name[i].dev =
-- malloc(sizeof(struct pseudo_dev));
-- if(pseudo->name[i].dev == NULL)
-- BAD_ERROR("failed to allocate "
-- "pseudo file\n");
- pseudo->name[i].pathname =
- strdup(alltarget);
-- memcpy(pseudo->name[i].dev, pseudo_dev,
-- sizeof(struct pseudo_dev));
-+ pseudo->name[i].dev = pseudo_dev;
- } else
- ERROR("%s already exists as a "
- "directory. Ignoring %s!\n",
-@@ -229,16 +223,113 @@
- }
-
-
-+int exec_file(char *command, struct pseudo_dev *dev)
-+{
-+ int child, res;
-+ static pid_t pid = -1;
-+ int pipefd[2];
-+#ifdef USE_TMP_FILE
-+ char filename[1024];
-+ int status;
-+ static int number = 0;
-+#endif
-+
-+ if(pid == -1)
-+ pid = getpid();
-+
-+#ifdef USE_TMP_FILE
-+ sprintf(filename, "/tmp/squashfs_pseudo_%d_%d", pid, number ++);
-+ pipefd[1] = open(filename, O_CREAT | O_TRUNC | O_RDWR, S_IRWXU);
-+ if(pipefd[1] == -1) {
-+ printf("open failed\n");
-+ return -1;
-+ }
-+#else
-+ res = pipe(pipefd);
-+ if(res == -1) {
-+ printf("pipe failed\n");
-+ return -1;
-+ }
-+#endif
-+
-+ child = fork();
-+ if(child == -1) {
-+ printf("fork failed\n");
-+ goto failed;
-+ }
-+
-+ if(child == 0) {
-+ close(STDOUT_FILENO);
-+ res = dup(pipefd[1]);
-+ if(res == -1) {
-+ printf("dup failed\n");
-+ exit(EXIT_FAILURE);
-+ }
-+ execl("/bin/sh", "sh", "-c", command, (char *) NULL);
-+ printf("execl failed\n");
-+ exit(EXIT_FAILURE);
-+ }
-+
-+#ifdef USE_TMP_FILE
-+ res = waitpid(child, &status, 0);
-+ close(pipefd[1]);
-+ if(res != -1 && WIFEXITED(status) && WEXITSTATUS(status) == 0) {
-+ dev->filename = strdup(filename);
-+ return 0;
-+ }
-+failed:
-+ unlink(filename);
-+ return -1;
-+#else
-+ close(pipefd[1]);
-+ dev->fd = pipefd[0];
-+ dev->child = child;
-+ return 0;
-+failed:
-+ return -1;
-+#endif
-+}
-+
-+
-+void add_pseudo_file(struct pseudo_dev *dev)
-+{
-+ pseudo_file = realloc(pseudo_file, (pseudo_count + 1) *
-+ sizeof(struct pseudo_dev *));
-+ if(pseudo_file == NULL)
-+ BAD_ERROR("Failed to realloc pseudo_file\n");
-+
-+ dev->pseudo_id = pseudo_count;
-+ pseudo_file[pseudo_count ++] = dev;
-+}
-+
-+
-+void delete_pseudo_files()
-+{
-+#ifdef USE_TMP_FILE
-+ int i;
-+
-+ for(i = 0; i < pseudo_count; i++)
-+ unlink(pseudo_file[i]->filename);
-+#endif
-+}
-+
-+
-+struct pseudo_dev *get_pseudo_file(int pseudo_id)
-+{
-+ return pseudo_file[pseudo_id];
-+}
-+
-+
- int read_pseudo_def(struct pseudo **pseudo, char *def)
- {
-- int n;
-+ int n, bytes;
- unsigned int major = 0, minor = 0, mode;
- char filename[2048], type, suid[100], sgid[100], *ptr;
- long long uid, gid;
-- struct pseudo_dev dev;
-+ struct pseudo_dev *dev;
-
-- n = sscanf(def, "%s %c %o %s %s %u %u", filename, &type, &mode, suid, sgid,
-- &major, &minor);
-+ n = sscanf(def, "%s %c %o %s %s %n", filename, &type, &mode, suid,
-+ sgid, &bytes);
-
- if(n < 5) {
- ERROR("Not enough or invalid arguments in pseudo file "
-@@ -249,7 +340,9 @@
- switch(type) {
- case 'b':
- case 'c':
-- if(n < 7) {
-+ n = sscanf(def + bytes, "%u %u", &major, &minor);
-+
-+ if(n < 2) {
- ERROR("Not enough or invalid arguments in pseudo file "
- "definition\n");
- goto error;
-@@ -265,47 +358,15 @@
- goto error;
- }
-
-- /* fall through */
-- case 'd':
-- if(mode > 0777) {
-- ERROR("Mode %o out of range\n", mode);
-+ case 'f':
-+ if(def[bytes] == '\0') {
-+ ERROR("Not enough arguments in pseudo file "
-+ "definition\n");
- goto error;
-- }
--
-- uid = strtoll(suid, &ptr, 10);
-- if(*ptr == '\0') {
-- if(uid < 0 || uid > ((1LL << 32) - 1)) {
-- ERROR("Uid %s out of range\n", suid);
-- goto error;
-- }
-- } else {
-- struct passwd *pwuid = getpwnam(suid);
-- if(pwuid)
-- uid = pwuid->pw_uid;
-- else {
-- ERROR("Uid %s invalid uid or unknown user\n",
-- suid);
-- goto error;
-- }
-- }
--
-- gid = strtoll(sgid, &ptr, 10);
-- if(*ptr == '\0') {
-- if(gid < 0 || gid > ((1LL << 32) - 1)) {
-- ERROR("Gid %s out of range\n", sgid);
-- goto error;
-- }
-- } else {
-- struct group *grgid = getgrnam(sgid);
-- if(grgid)
-- gid = grgid->gr_gid;
-- else {
-- ERROR("Gid %s invalid uid or unknown user\n",
-- sgid);
-- goto error;
-- }
-- }
--
-+ }
-+ break;
-+ case 'd':
-+ case 'm':
- break;
- default:
- ERROR("Unsupported type %c\n", type);
-@@ -313,6 +374,43 @@
- }
-
-
-+ if(mode > 0777) {
-+ ERROR("Mode %o out of range\n", mode);
-+ goto error;
-+ }
-+
-+ uid = strtoll(suid, &ptr, 10);
-+ if(*ptr == '\0') {
-+ if(uid < 0 || uid > ((1LL << 32) - 1)) {
-+ ERROR("Uid %s out of range\n", suid);
-+ goto error;
-+ }
-+ } else {
-+ struct passwd *pwuid = getpwnam(suid);
-+ if(pwuid)
-+ uid = pwuid->pw_uid;
-+ else {
-+ ERROR("Uid %s invalid uid or unknown user\n", suid);
-+ goto error;
-+ }
-+ }
-+
-+ gid = strtoll(sgid, &ptr, 10);
-+ if(*ptr == '\0') {
-+ if(gid < 0 || gid > ((1LL << 32) - 1)) {
-+ ERROR("Gid %s out of range\n", sgid);
-+ goto error;
-+ }
-+ } else {
-+ struct group *grgid = getgrnam(sgid);
-+ if(grgid)
-+ gid = grgid->gr_gid;
-+ else {
-+ ERROR("Gid %s invalid uid or unknown user\n", sgid);
-+ goto error;
-+ }
-+ }
-+
- switch(type) {
- case 'b':
- mode |= S_IFBLK;
-@@ -323,16 +421,37 @@
- case 'd':
- mode |= S_IFDIR;
- break;
-+ case 'f':
-+ mode |= S_IFREG;
-+ break;
- }
-
-- dev.type = type;
-- dev.mode = mode;
-- dev.uid = uid;
-- dev.gid = gid;
-- dev.major = major;
-- dev.minor = minor;
-+ dev = malloc(sizeof(struct pseudo_dev));
-+ if(dev == NULL)
-+ BAD_ERROR("Failed to create pseudo_dev\n");
-+
-+ dev->type = type;
-+ dev->mode = mode;
-+ dev->uid = uid;
-+ dev->gid = gid;
-+ dev->major = major;
-+ dev->minor = minor;
-+
-+ if(type == 'f') {
-+ int res;
-+
-+ printf("Executing dynamic pseudo file\n");
-+ printf("\t\"%s\"\n", def);
-+ res = exec_file(def + bytes, dev);
-+ if(res == -1) {
-+ ERROR("Failed to execute dynamic pseudo file definition"
-+ " \"%s\"\n", def);
-+ return FALSE;
-+ }
-+ add_pseudo_file(dev);
-+ }
-
-- *pseudo = add_pseudo(*pseudo, &dev, filename, filename);
-+ *pseudo = add_pseudo(*pseudo, dev, filename, filename);
-
- return TRUE;
-
-diff -Nur squashfs4.0/squashfs-tools/pseudo.h squashfs4.0-lzma-snapshot/squashfs-tools/pseudo.h
---- squashfs4.0/squashfs-tools/pseudo.h 2009-04-04 03:44:24.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/pseudo.h 2009-10-20 06:03:38.000000000 +0200
-@@ -27,6 +27,12 @@
- unsigned int gid;
- unsigned int major;
- unsigned int minor;
-+ int pseudo_id;
-+ int fd;
-+ int child;
-+#ifdef USE_TMP_FILE
-+ char *filename;
-+#endif
- };
-
- struct pseudo_entry {
-@@ -46,3 +52,5 @@
- extern int read_pseudo_file(struct pseudo **, char *);
- extern struct pseudo *pseudo_subdir(char *, struct pseudo *);
- extern struct pseudo_entry *pseudo_readdir(struct pseudo *);
-+extern struct pseudo_dev *get_pseudo_file(int);
-+extern void delete_pseudo_files();
-diff -Nur squashfs4.0/squashfs-tools/read_fs.c squashfs4.0-lzma-snapshot/squashfs-tools/read_fs.c
---- squashfs4.0/squashfs-tools/read_fs.c 2009-03-31 06:23:14.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/read_fs.c 2009-10-20 06:03:38.000000000 +0200
-@@ -36,7 +36,6 @@
- #include <fcntl.h>
- #include <errno.h>
- #include <string.h>
--#include <zlib.h>
- #include <sys/mman.h>
-
- #ifndef linux
-@@ -51,6 +50,7 @@
- #include "squashfs_swap.h"
- #include "read_fs.h"
- #include "global.h"
-+#include "compressor.h"
-
- #include <stdlib.h>
-
-@@ -66,7 +66,9 @@
- fprintf(stderr, s, ## args); \
- } while(0)
-
--int read_block(int fd, long long start, long long *next, unsigned char *block,
-+static struct compressor *comp;
-+
-+int read_block(int fd, long long start, long long *next, void *block,
- squashfs_super_block *sBlk)
- {
- unsigned short c_byte;
-@@ -77,32 +79,24 @@
-
- if(SQUASHFS_COMPRESSED(c_byte)) {
- char buffer[SQUASHFS_METADATA_SIZE];
-- int res;
-- unsigned long bytes = SQUASHFS_METADATA_SIZE;
-+ int error, res;
-
- c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
- read_destination(fd, start + offset, c_byte, buffer);
-
-- res = uncompress(block, &bytes, (const unsigned char *) buffer,
-- c_byte);
-- if(res != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "memory\n");
-- else if(res == Z_BUF_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "room in output buffer\n");
-- else
-- ERROR("zlib::uncompress failed, unknown error "
-- "%d\n", res);
-+ res = comp->uncompress(block, buffer, c_byte,
-+ SQUASHFS_METADATA_SIZE, &error);
-+ if(res == -1) {
-+ ERROR("%s uncompress failed with error code %d\n",
-+ comp->name, error);
- return 0;
- }
- if(next)
- *next = start + offset + c_byte;
-- return bytes;
-+ return res;
- } else {
- c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
-- read_destination(fd, start + offset, c_byte, (char *) block);
-+ read_destination(fd, start + offset, c_byte, block);
- if(next)
- *next = start + offset + c_byte;
- return c_byte;
-@@ -356,7 +350,7 @@
- }
-
-
--int read_super(int fd, squashfs_super_block *sBlk, char *source)
-+struct compressor *read_super(int fd, squashfs_super_block *sBlk, char *source)
- {
- read_destination(fd, SQUASHFS_START, sizeof(squashfs_super_block),
- (char *) sBlk);
-@@ -388,8 +382,18 @@
- goto failed_mount;
- }
-
-+ /* Check the compression type */
-+ comp = lookup_compressor_id(sBlk->compression);
-+ if(!comp->supported) {
-+ ERROR("Filesystem on %s uses %s compression, this is"
-+ "unsupported by this version\n", source, comp->name);
-+ display_compressors("", "");
-+ goto failed_mount;
-+ }
-+
- printf("Found a valid %sSQUASHFS superblock on %s.\n",
- SQUASHFS_EXPORTABLE(sBlk->flags) ? "exportable " : "", source);
-+ printf("\tCompression used %s\n", comp->name);
- printf("\tInodes are %scompressed\n",
- SQUASHFS_UNCOMPRESSED_INODES(sBlk->flags) ? "un" : "");
- printf("\tData is %scompressed\n",
-@@ -417,10 +421,10 @@
- TRACE("sBlk->lookup_table_start %llx\n", sBlk->lookup_table_start);
- printf("\n");
-
-- return TRUE;
-+ return comp;
-
- failed_mount:
-- return FALSE;
-+ return NULL;
- }
-
-
-@@ -514,12 +518,17 @@
- SQUASHFS_INSWAP_ID_BLOCKS(index, indexes);
-
- for(i = 0; i < indexes; i++) {
-- int length;
-- length = read_block(fd, index[i], NULL,
-+ int length = read_block(fd, index[i], NULL,
- ((unsigned char *) id_table) +
- (i * SQUASHFS_METADATA_SIZE), sBlk);
- TRACE("Read id table block %d, from 0x%llx, length %d\n", i,
- index[i], length);
-+ if(length == 0) {
-+ ERROR("Failed to read id table block %d, from 0x%llx, "
-+ "length %d\n", i, index[i], length);
-+ free(id_table);
-+ return NULL;
-+ }
- }
-
- SQUASHFS_INSWAP_INTS(id_table, sBlk->no_ids);
-@@ -563,6 +572,13 @@
- (i * SQUASHFS_METADATA_SIZE), sBlk);
- TRACE("Read fragment table block %d, from 0x%llx, length %d\n",
- i, fragment_table_index[i], length);
-+ if(length == 0) {
-+ ERROR("Failed to read fragment table block %d, from "
-+ "0x%llx, length %d\n", i,
-+ fragment_table_index[i], length);
-+ free(*fragment_table);
-+ return 0;
-+ }
- }
-
- for(i = 0; i < sBlk->fragments; i++)
-@@ -599,6 +615,13 @@
- (i * SQUASHFS_METADATA_SIZE), sBlk);
- TRACE("Read inode lookup table block %d, from 0x%llx, length "
- "%d\n", i, index[i], length);
-+ if(length == 0) {
-+ ERROR("Failed to read inode lookup table block %d, "
-+ "from 0x%llx, length %d\n", i, index[i],
-+ length);
-+ free(*inode_lookup_table);
-+ return 0;
-+ }
- }
-
- SQUASHFS_INSWAP_LONG_LONGS(*inode_lookup_table, sBlk->inodes);
-diff -Nur squashfs4.0/squashfs-tools/sort.c squashfs4.0-lzma-snapshot/squashfs-tools/sort.c
---- squashfs4.0/squashfs-tools/sort.c 2009-03-31 06:25:53.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/sort.c 2009-10-20 06:03:38.000000000 +0200
-@@ -198,7 +198,7 @@
- while(dir->current_count < dir->count) {
- struct dir_ent *dir_ent = dir->list[dir->current_count++];
- struct stat *buf = &dir_ent->inode->buf;
-- if(dir_ent->data)
-+ if(dir_ent->inode->root_entry)
- continue;
-
- switch(buf->st_mode & S_IFMT) {
-@@ -254,6 +254,7 @@
- write_file(&inode, entry->dir, &duplicate_file);
- INFO("file %s, uncompressed size %lld bytes %s"
- "\n", entry->dir->pathname,
-+ (long long)
- entry->dir->inode->buf.st_size,
- duplicate_file ? "DUPLICATE" : "");
- entry->dir->inode->inode = inode;
-@@ -261,6 +262,7 @@
- } else
- INFO("file %s, uncompressed size %lld bytes "
- "LINK\n", entry->dir->pathname,
-+ (long long)
- entry->dir->inode->buf.st_size);
- }
- }
-diff -Nur squashfs4.0/squashfs-tools/sort.h squashfs4.0-lzma-snapshot/squashfs-tools/sort.h
---- squashfs4.0/squashfs-tools/sort.h 2009-02-08 13:02:53.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/sort.h 2009-10-20 06:03:38.000000000 +0200
-@@ -42,17 +42,19 @@
- struct inode_info *inode;
- struct dir_info *dir;
- struct dir_info *our_dir;
-- struct old_root_entry_info *data;
- };
-
- struct inode_info {
-- unsigned int nlink;
- struct stat buf;
-+ struct inode_info *next;
- squashfs_inode inode;
-- unsigned int type;
- unsigned int inode_number;
-+ unsigned int nlink;
-+ int pseudo_id;
-+ char type;
- char read;
-- struct inode_info *next;
-+ char root_entry;
-+ char pseudo_file;
- };
-
- struct priority_entry {
-diff -Nur squashfs4.0/squashfs-tools/squashfs_compat.h squashfs4.0-lzma-snapshot/squashfs-tools/squashfs_compat.h
---- squashfs4.0/squashfs-tools/squashfs_compat.h 2009-03-16 05:27:27.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/squashfs_compat.h 2009-10-20 06:03:38.000000000 +0200
-@@ -777,11 +777,10 @@
- #endif
-
- #define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\
-- int bits;\
-- int b_pos = pos % 8;\
-- unsigned long long val = 0;\
-- unsigned char *s = (unsigned char *)p + (pos / 8);\
-- unsigned char *d = ((unsigned char *) &val) + 7;\
-+ b_pos = pos % 8;\
-+ val = 0;\
-+ s = (unsigned char *)p + (pos / 8);\
-+ d = ((unsigned char *) &val) + 7;\
- for(bits = 0; bits < (tbits + b_pos); bits += 8) \
- *d-- = *s++;\
- value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\
-diff -Nur squashfs4.0/squashfs-tools/squashfs_fs.h squashfs4.0-lzma-snapshot/squashfs-tools/squashfs_fs.h
---- squashfs4.0/squashfs-tools/squashfs_fs.h 2009-03-18 03:50:20.000000000 +0100
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/squashfs_fs.h 2009-10-20 06:03:38.000000000 +0200
-@@ -229,6 +229,7 @@
- typedef long long squashfs_inode_t;
-
- #define ZLIB_COMPRESSION 1
-+#define LZMA_COMPRESSION 2
-
- struct squashfs_super_block {
- unsigned int s_magic;
-diff -Nur squashfs4.0/squashfs-tools/unsquash-3.c squashfs4.0-lzma-snapshot/squashfs-tools/unsquash-3.c
---- squashfs4.0/squashfs-tools/unsquash-3.c 2009-03-31 06:35:10.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/unsquash-3.c 2009-10-20 06:03:38.000000000 +0200
-@@ -36,7 +36,7 @@
- sBlk.fragment_table_start);
-
- if(sBlk.fragments == 0)
-- return;
-+ return TRUE;
-
- if((fragment_table = malloc(sBlk.fragments *
- sizeof(squashfs_fragment_entry_3))) == NULL)
-diff -Nur squashfs4.0/squashfs-tools/unsquash-4.c squashfs4.0-lzma-snapshot/squashfs-tools/unsquash-4.c
---- squashfs4.0/squashfs-tools/unsquash-4.c 2009-03-31 06:38:31.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/unsquash-4.c 2009-10-20 06:03:38.000000000 +0200
-@@ -38,7 +38,7 @@
- sBlk.fragment_table_start);
-
- if(sBlk.fragments == 0)
-- return;
-+ return TRUE;
-
- if((fragment_table = malloc(sBlk.fragments *
- sizeof(squashfs_fragment_entry))) == NULL)
-diff -Nur squashfs4.0/squashfs-tools/unsquashfs.c squashfs4.0-lzma-snapshot/squashfs-tools/unsquashfs.c
---- squashfs4.0/squashfs-tools/unsquashfs.c 2009-04-05 23:23:06.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/unsquashfs.c 2009-10-20 06:03:39.000000000 +0200
-@@ -25,6 +25,7 @@
- #include "squashfs_swap.h"
- #include "squashfs_compat.h"
- #include "read_fs.h"
-+#include "compressor.h"
-
- struct cache *fragment_cache, *data_cache;
- struct queue *to_reader, *to_deflate, *to_writer, *from_writer;
-@@ -36,6 +39,7 @@
-
- struct super_block sBlk;
- squashfs_operations s_ops;
-+struct compressor *comp;
-
- int bytes = 0, swap, file_count = 0, dir_count = 0, sym_count = 0,
- dev_count = 0, fifo_count = 0;
-@@ -590,31 +594,23 @@
- offset = 3;
- if(SQUASHFS_COMPRESSED(c_byte)) {
- char buffer[SQUASHFS_METADATA_SIZE];
-- int res;
-- unsigned long bytes = SQUASHFS_METADATA_SIZE;
-+ int error, res;
-
- c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
- if(read_bytes(start + offset, c_byte, buffer) == FALSE)
- goto failed;
-
-- res = uncompress((unsigned char *) block, &bytes,
-- (const unsigned char *) buffer, c_byte);
-+ res = comp->uncompress(block, buffer, c_byte,
-+ SQUASHFS_METADATA_SIZE, &error);
-
-- if(res != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "memory\n");
-- else if(res == Z_BUF_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "room in output buffer\n");
-- else
-- ERROR("zlib::uncompress failed, unknown error "
-- "%d\n", res);
-+ if(res == -1) {
-+ ERROR("%s uncompress failed with error code %d\n",
-+ comp->name, error);
- goto failed;
- }
- if(next)
- *next = start + offset + c_byte;
-- return bytes;
-+ return res;
- } else {
- c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
- if(read_bytes(start + offset, c_byte, block) == FALSE)
-@@ -632,36 +628,26 @@
-
- int read_data_block(long long start, unsigned int size, char *block)
- {
-- int res;
-- unsigned long bytes = block_size;
-+ int error, res;
- int c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(size);
-
- TRACE("read_data_block: block @0x%llx, %d %s bytes\n", start,
-- SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte),
-- SQUASHFS_COMPRESSED_BLOCK(c_byte) ? "compressed" :
-+ c_byte, SQUASHFS_COMPRESSED_BLOCK(size) ? "compressed" :
- "uncompressed");
-
- if(SQUASHFS_COMPRESSED_BLOCK(size)) {
- if(read_bytes(start, c_byte, data) == FALSE)
- goto failed;
-
-- res = uncompress((unsigned char *) block, &bytes,
-- (const unsigned char *) data, c_byte);
-+ res = comp->uncompress(block, data, c_byte, block_size, &error);
-
-- if(res != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "memory\n");
-- else if(res == Z_BUF_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "room in output buffer\n");
-- else
-- ERROR("zlib::uncompress failed, unknown error "
-- "%d\n", res);
-+ if(res == -1) {
-+ ERROR("%s uncompress failed with error code %d\n",
-+ comp->name, error);
- goto failed;
- }
-
-- return bytes;
-+ return res;
- } else {
- if(read_bytes(start, c_byte, block) == FALSE)
- goto failed;
-@@ -671,7 +657,7 @@
-
- failed:
- ERROR("read_data_block: failed to read block @0x%llx, size %d\n", start,
-- size);
-+ c_byte);
- return FALSE;
- }
-
-@@ -1383,6 +1369,11 @@
- #endif
- printf("Creation or last append time %s", mkfs_str ? mkfs_str :
- "failed to get time\n");
-+ printf("Filesystem size %.2f Kbytes (%.2f Mbytes)\n",
-+ sBlk.bytes_used / 1024.0, sBlk.bytes_used / (1024.0 * 1024.0));
-+ if(sBlk.s_major == 4)
-+ printf("Compression %s\n", comp->name);
-+ printf("Block size %d\n", sBlk.block_size);
- printf("Filesystem is %sexportable via NFS\n",
- SQUASHFS_EXPORTABLE(sBlk.flags) ? "" : "not ");
-
-@@ -1409,9 +1400,6 @@
- SQUASHFS_DUPLICATES(sBlk.flags) ? "" : "not ");
- else
- printf("Duplicates are removed\n");
-- printf("Filesystem size %.2f Kbytes (%.2f Mbytes)\n",
-- sBlk.bytes_used / 1024.0, sBlk.bytes_used / (1024.0 * 1024.0));
-- printf("Block size %d\n", sBlk.block_size);
- if(sBlk.s_major > 1)
- printf("Number of fragments %d\n", sBlk.fragments);
- printf("Number of inodes %d\n", sBlk.inodes);
-@@ -1459,6 +1447,18 @@
- s_ops.read_inode = read_inode_4;
- s_ops.read_uids_guids = read_uids_guids_4;
- memcpy(&sBlk, &sBlk_4, sizeof(sBlk_4));
-+
-+ /*
-+ * Check the compression type
-+ */
-+ comp = lookup_compressor_id(sBlk.compression);
-+ if(!comp->supported) {
-+ ERROR("Filesystem uses %s compression, this is "
-+ "unsupported by this version\n", comp->name);
-+ ERROR("Decompressors available:\n");
-+ display_compressors("", "");
-+ goto failed_mount;
-+ }
- return TRUE;
- }
-
-@@ -1548,6 +1548,11 @@
- goto failed_mount;
- }
-
-+ /*
-+ * 1.x, 2.x and 3.x filesystems use gzip compression. Gzip is always
-+ * suppported.
-+ */
-+ comp = lookup_compressor("gzip");
- return TRUE;
-
- failed_mount:
-@@ -1707,32 +1712,24 @@
-
- while(1) {
- struct cache_entry *entry = queue_get(to_deflate);
-- int res;
-- unsigned long bytes = block_size;
-+ int error, res;
-
-- res = uncompress((unsigned char *) tmp, &bytes,
-- (const unsigned char *) entry->data,
-- SQUASHFS_COMPRESSED_SIZE_BLOCK(entry->size));
--
-- if(res != Z_OK) {
-- if(res == Z_MEM_ERROR)
-- ERROR("zlib::uncompress failed, not enough"
-- "memory\n");
-- else if(res == Z_BUF_ERROR)
-- ERROR("zlib::uncompress failed, not enough "
-- "room in output buffer\n");
-- else
-- ERROR("zlib::uncompress failed, unknown error "
-- "%d\n", res);
-- } else
-- memcpy(entry->data, tmp, bytes);
-+ res = comp->uncompress(tmp, entry->data,
-+ SQUASHFS_COMPRESSED_SIZE_BLOCK(entry->size), block_size,
-+ &error);
-+
-+ if(res == -1)
-+ ERROR("%s uncompress failed with error code %d\n",
-+ comp->name, error);
-+ else
-+ memcpy(entry->data, tmp, res);
-
- /*
- * block has been either successfully decompressed, or an error
- * occurred, clear pending flag, set error appropriately and
- * wake up any threads waiting on this block
- */
-- cache_block_ready(entry, res != Z_OK);
-+ cache_block_ready(entry, res == -1);
- }
- }
-
-@@ -1913,7 +1910,7 @@
-
-
- #define VERSION() \
-- printf("unsquashfs version 4.0 (2009/04/05)\n");\
-+ printf("unsquashfs version 4.1-CVS (2009/08/30)\n");\
- printf("copyright (C) 2009 Phillip Lougher <phillip@lougher.demon.co.uk>"\
- "\n\n");\
- printf("This program is free software; you can redistribute it and/or\n");\
-@@ -1938,7 +1935,6 @@
- int fragment_buffer_size = FRAGMENT_BUFFER_DEFAULT;
- int data_buffer_size = DATA_BUFFER_DEFAULT;
- char *b;
-- struct winsize winsize;
-
- pthread_mutex_init(&screen_mutex, NULL);
- root_process = geteuid() == 0;
-@@ -2087,6 +2083,8 @@
- "regular expressions\n");
- ERROR("\t\t\t\trather than use the default shell "
- "wildcard\n\t\t\t\texpansion (globbing)\n");
-+ ERROR("\nDecompressors available:\n");
-+ display_compressors("", "");
- }
- exit(1);
- }
-diff -Nur squashfs4.0/squashfs-tools/unsquashfs.h squashfs4.0-lzma-snapshot/squashfs-tools/unsquashfs.h
---- squashfs4.0/squashfs-tools/unsquashfs.h 2009-03-29 04:29:02.000000000 +0200
-+++ squashfs4.0-lzma-snapshot/squashfs-tools/unsquashfs.h 2009-10-20 06:03:39.000000000 +0200
-@@ -31,7 +31,6 @@
- #include <fcntl.h>
- #include <errno.h>
- #include <string.h>
--#include <zlib.h>
- #include <sys/mman.h>
- #include <utime.h>
- #include <pwd.h>
--- /dev/null
+--- /dev/null
++++ b/squashfs-tools/lzma_xz_options.h
+@@ -0,0 +1,112 @@
++#ifndef LZMA_XZ_OPTIONS_H
++#define LZMA_XZ_OPTIONS_H
++/*
++ * Copyright (c) 2011
++ * Jonas Gorski <jonas.gorski@gmail.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * lzma_options.h
++ */
++
++#include <stdint.h>
++
++#ifndef linux
++#define __BYTE_ORDER BYTE_ORDER
++#define __BIG_ENDIAN BIG_ENDIAN
++#define __LITTLE_ENDIAN LITTLE_ENDIAN
++#else
++#include <endian.h>
++#endif
++
++
++
++struct lzma_opts {
++ uint32_t flags;
++#define LZMA_OPT_FLT_MASK 0xffff
++#define LZMA_OPT_PRE_OFF 16
++#define LZMA_OPT_PRE_MASK (0xf << LZMA_OPT_PRE_OFF)
++#define LZMA_OPT_EXTREME 20
++ uint16_t bit_opts;
++#define LZMA_OPT_LC_OFF 0
++#define LZMA_OPT_LC_MASK (0x7 << LZMA_OPT_LC_OFF)
++#define LZMA_OPT_LP_OFF 3
++#define LZMA_OPT_LP_MASK (0x7 << LZMA_OPT_LP_OFF)
++#define LZMA_OPT_PB_OFF 6
++#define LZMA_OPT_PB_MASK (0x7 << LZMA_OPT_PB_OFF)
++ uint16_t fb;
++ uint32_t dict_size;
++};
++
++#if __BYTE_ORDER == __BIG_ENDIAN
++extern unsigned int inswap_le32(unsigned int);
++
++#define SQUASHFS_INSWAP_LZMA_COMP_OPTS(s) { \
++ (s)->flags = inswap_le32((s)->flags); \
++ (s)->bit_opts = inswap_le16((s)->bit_opts); \
++ (s)->fb = inswap_le16((s)->fb); \
++ (s)->dict_size = inswap_le32((s)->dict_size); \
++}
++#else
++#define SQUASHFS_INSWAP_LZMA_COMP_OPTS(s)
++#endif
++
++#define MEMLIMIT (32 * 1024 * 1024)
++
++#define LZMA_OPT_LC_MIN 0
++#define LZMA_OPT_LC_MAX 4
++#define LZMA_OPT_LC_DEFAULT 3
++
++#define LZMA_OPT_LP_MIN 0
++#define LZMA_OPT_LP_MAX 4
++#define LZMA_OPT_LP_DEFAULT 0
++
++#define LZMA_OPT_PB_MIN 0
++#define LZMA_OPT_PB_MAX 4
++#define LZMA_OPT_PB_DEFAULT 2
++
++#define LZMA_OPT_FB_MIN 5
++#define LZMA_OPT_FB_MAX 273
++#define LZMA_OPT_FB_DEFAULT 64
++
++enum {
++ LZMA_OPT_LZMA = 1,
++ LZMA_OPT_XZ
++};
++
++struct lzma_xz_options {
++ int preset;
++ int extreme;
++ int lc;
++ int lp;
++ int pb;
++ int fb;
++ int dict_size;
++ int flags;
++};
++
++struct lzma_xz_options *lzma_xz_get_options(void);
++
++int lzma_xz_options(char *argv[], int argc, int lzmaver);
++
++int lzma_xz_options_post(int block_size, int lzmaver);
++
++void *lzma_xz_dump_options(int block_size, int *size, int flags);
++
++int lzma_xz_extract_options(int block_size, void *buffer, int size, int lzmaver);
++
++void lzma_xz_usage(int lzmaver);
++
++#endif
+--- /dev/null
++++ b/squashfs-tools/lzma_xz_options.c
+@@ -0,0 +1,365 @@
++/*
++ * Copyright (c) 2011
++ * Jonas Gorski <jonas.gorski@gmail.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * lzma_options.c
++ *
++ * Common options for LZMA1 and 2 compressors. Based on xz_wrapper.c
++ */
++
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++
++#include <lzma.h>
++
++#include "lzma_xz_options.h"
++
++static const char const *lzmaver_str[] = { "", "lzma", "xz" };
++
++static struct lzma_xz_options options = {
++ .flags = 0,
++ .preset = 6,
++ .extreme = 0,
++ .lc = LZMA_OPT_LC_DEFAULT,
++ .lp = LZMA_OPT_LP_DEFAULT,
++ .pb = LZMA_OPT_PB_DEFAULT,
++ .fb = LZMA_OPT_FB_DEFAULT,
++ .dict_size = 0,
++};
++
++static float lzma_dict_percent = 0;
++
++struct lzma_xz_options *lzma_xz_get_options(void)
++{
++ return &options;
++}
++
++
++int lzma_xz_options(char *argv[], int argc, int lzmaver)
++{
++ const char *comp_name = lzmaver_str[lzmaver];
++
++ if(strcmp(argv[0], "-Xpreset") == 0) {
++ int preset;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xpreset missing preset\n", comp_name);
++ goto failed;
++ }
++
++ preset = atoi(argv[1]);
++
++ if (preset < 0 || preset > 9) {
++ fprintf(stderr, "%s: -Xpreset invalid value\n", comp_name);
++ goto failed;
++ }
++ options.preset = preset;
++ return 1;
++ } else if(strcmp(argv[0], "-Xe") == 0) {
++ options.extreme = 1;
++ return 0;
++ } else if(strcmp(argv[0], "-Xlc") == 0) {
++ int lc;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xlc missing lc\n", comp_name);
++ goto failed;
++ }
++
++ lc = atoi(argv[1]);
++
++ if (lc < LZMA_OPT_LC_MIN || lc > LZMA_OPT_LC_MAX) {
++ fprintf(stderr, "%s: -Xlc invalid value\n", comp_name);
++ goto failed;
++ }
++ options.lc = lc;
++ return 1;
++ } else if(strcmp(argv[0], "-Xlp") == 0) {
++ int lp;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xlp missing lp\n", comp_name);
++ goto failed;
++ }
++
++ lp = atoi(argv[1]);
++
++ if (lp < LZMA_OPT_LP_MIN || lp > LZMA_OPT_LP_MAX) {
++ fprintf(stderr, "%s: -Xlp invalid value\n", comp_name);
++ goto failed;
++ }
++ options.lp = lp;
++ return 1;
++ } else if(strcmp(argv[0], "-Xpb") == 0) {
++ int pb;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xpb missing pb\n", comp_name);
++ goto failed;
++ }
++
++ pb = atoi(argv[1]);
++
++ if (pb < LZMA_OPT_PB_MIN || pb > LZMA_OPT_PB_MAX) {
++ fprintf(stderr, "%s: -Xbp invalid value\n", comp_name);
++ goto failed;
++ }
++ options.pb = pb;
++ return 1;
++ } else if(strcmp(argv[0], "-Xfb") == 0) {
++ int fb;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xfb missing fb\n", comp_name);
++ goto failed;
++ }
++
++ fb = atoi(argv[1]);
++
++ if (fb < LZMA_OPT_FB_MIN || fb > LZMA_OPT_FB_MAX) {
++ fprintf(stderr, "%s: -Xfb invalid value\n", comp_name);
++ goto failed;
++ }
++ options.fb = fb;
++ return 1;
++ } else if(strcmp(argv[0], "-Xdict-size") == 0) {
++ char *b;
++ float size;
++
++ if(argc < 2) {
++ fprintf(stderr, "%s: -Xdict-size missing dict-size\n", comp_name);
++ goto failed;
++ }
++
++ size = strtof(argv[1], &b);
++ if(*b == '%') {
++ if(size <= 0 || size > 100) {
++ fprintf(stderr, "%s: -Xdict-size percentage "
++ "should be 0 < dict-size <= 100\n", comp_name);
++ goto failed;
++ }
++
++ lzma_dict_percent = size;
++ options.dict_size = 0;
++ } else {
++ if((float) ((int) size) != size) {
++ fprintf(stderr, "%s: -Xdict-size can't be "
++ "fractional unless a percentage of the"
++ " block size\n", comp_name);
++ goto failed;
++ }
++
++ lzma_dict_percent = 0;
++ options.dict_size = (int) size;
++
++ if(*b == 'k' || *b == 'K')
++ options.dict_size *= 1024;
++ else if(*b == 'm' || *b == 'M')
++ options.dict_size *= 1024 * 1024;
++ else if(*b != '\0') {
++ fprintf(stderr, "%s: -Xdict-size invalid "
++ "dict-size\n", comp_name);
++ goto failed;
++ }
++ }
++
++ return 1;
++ }
++
++ return -1;
++
++failed:
++ return -2;
++
++}
++
++int lzma_xz_options_post(int block_size, int lzmaver)
++{
++ const char *comp_name = lzmaver_str[lzmaver];
++ /*
++ * if -Xdict-size has been specified use this to compute the datablock
++ * dictionary size
++ */
++ if(options.dict_size || lzma_dict_percent) {
++ int dict_size_min = (lzmaver == 1 ? 4096 : 8192);
++ int n;
++
++ if(options.dict_size) {
++ if(options.dict_size > block_size) {
++ fprintf(stderr, "%s: -Xdict-size is larger than"
++ " block_size\n", comp_name);
++ goto failed;
++ }
++ } else
++ options.dict_size = block_size * lzma_dict_percent / 100;
++
++ if(options.dict_size < dict_size_min) {
++ fprintf(stderr, "%s: -Xdict-size should be %i bytes "
++ "or larger\n", comp_name, dict_size_min);
++ goto failed;
++ }
++
++ /*
++ * dictionary_size must be storable in xz header as either
++ * 2^n or as 2^n+2^(n+1)
++ */
++ n = ffs(options.dict_size) - 1;
++ if(options.dict_size != (1 << n) &&
++ options.dict_size != ((1 << n) + (1 << (n + 1)))) {
++ fprintf(stderr, "%s: -Xdict-size is an unsupported "
++ "value, dict-size must be storable in %s "
++ "header\n", comp_name, comp_name);
++ fprintf(stderr, "as either 2^n or as 2^n+2^(n+1). "
++ "Example dict-sizes are 75%%, 50%%, 37.5%%, "
++ "25%%,\n");
++ fprintf(stderr, "or 32K, 16K, 8K etc.\n");
++ goto failed;
++ }
++
++ } else
++ /* No -Xdict-size specified, use defaults */
++ options.dict_size = block_size;
++
++ return 0;
++
++failed:
++ return -1;
++}
++
++static struct lzma_opts lzma_comp_opts;
++
++void *lzma_xz_dump_options(int block_size, int *size, int flags)
++{
++ /* No need to store default options */
++ if (options.preset == 6 &&
++ options.extreme == 0 &&
++ options.lc == LZMA_OPT_LC_DEFAULT &&
++ options.lp == LZMA_OPT_LC_DEFAULT &&
++ options.pb == LZMA_OPT_PB_DEFAULT &&
++ options.fb == 0 &&
++ options.dict_size == block_size &&
++ flags == 0)
++ return NULL;
++
++ *size = sizeof(struct lzma_opts);
++
++ lzma_comp_opts.flags |= flags;
++
++ if (options.extreme)
++ lzma_comp_opts.flags |= LZMA_OPT_EXTREME;
++
++ lzma_comp_opts.flags |= ((options.preset << LZMA_OPT_PRE_OFF) & LZMA_OPT_PRE_MASK);
++
++ lzma_comp_opts.bit_opts =
++ ((options.lc << LZMA_OPT_LC_OFF) & LZMA_OPT_LC_MASK) |
++ ((options.lp << LZMA_OPT_LP_OFF) & LZMA_OPT_LP_MASK) |
++ ((options.pb << LZMA_OPT_PB_OFF) & LZMA_OPT_PB_MASK);
++ lzma_comp_opts.fb = options.fb;
++ lzma_comp_opts.dict_size = options.dict_size;
++
++ SQUASHFS_INSWAP_LZMA_COMP_OPTS(&lzma_comp_opts);
++
++ return &lzma_comp_opts;
++}
++
++int lzma_xz_extract_options(int block_size, void *buffer, int size, int lzmaver)
++{
++ if (size == 0) {
++ /* default options */
++ options.preset = 6;
++ options.extreme = 0;
++ options.lc = LZMA_OPT_LC_DEFAULT;
++ options.lp = LZMA_OPT_LC_DEFAULT;
++ options.pb = LZMA_OPT_PB_DEFAULT;
++ options.fb = LZMA_OPT_FB_DEFAULT;
++ options.dict_size = block_size;
++ options.flags = 0;
++ } else {
++ struct lzma_opts *comp_opts = buffer;
++ int n;
++
++ if (size != sizeof(struct lzma_opts))
++ goto failed;
++
++ SQUASHFS_INSWAP_LZMA_COMP_OPTS(&comp_opts);
++
++ options.flags = comp_opts->flags & LZMA_OPT_FLT_MASK;
++ options.preset = (comp_opts->flags & LZMA_OPT_PRE_MASK) >> LZMA_OPT_PRE_OFF;
++ options.extreme = !!(comp_opts->flags & LZMA_OPT_EXTREME);
++
++ options.lc = (comp_opts->bit_opts & LZMA_OPT_LC_MASK) >> LZMA_OPT_LC_OFF;
++ options.lp = (comp_opts->bit_opts & LZMA_OPT_LP_MASK) >> LZMA_OPT_LP_OFF;
++ options.pb = (comp_opts->bit_opts & LZMA_OPT_PB_MASK) >> LZMA_OPT_PB_OFF;
++ options.fb = comp_opts->fb;
++ options.dict_size = comp_opts->dict_size;
++
++ /* check that the LZMA bit options are in range */
++ if (options.lc < LZMA_OPT_LC_MIN || options.lc > LZMA_OPT_LC_MAX ||
++ options.lp < LZMA_OPT_LP_MIN || options.lp > LZMA_OPT_LP_MAX ||
++ options.pb < LZMA_OPT_PB_MIN || options.pb > LZMA_OPT_PB_MAX ||
++ options.fb < LZMA_OPT_FB_MIN || options.fb > LZMA_OPT_FB_MAX)
++ goto failed;
++
++ /*
++ * check that the dictionary size seems correct - the dictionary
++ * size should 2^n or 2^n+2^(n+1)
++ */
++ n = ffs(options.dict_size) - 1;
++ if(options.dict_size != (1 << n) &&
++ options.dict_size != ((1 << n) + (1 << (n + 1))))
++ goto failed;
++
++ }
++
++ return 0;
++
++failed:
++ fprintf(stderr, "%s: error reading stored compressor options from "
++ "filesystem!\n", lzmaver_str[lzmaver]);
++ return -1;
++}
++
++void lzma_xz_usage(int lzmaver)
++{
++ fprintf(stderr, "\t -Xpreset <preset>\n");
++ fprintf(stderr, "\t\tcompression preset (0-9, default 6)\n");
++ fprintf(stderr, "\t -Xe\n");
++ fprintf(stderr, "\t\tTry to improve compression ratio by using more ");
++ fprintf(stderr, "CPU time.\n");
++ fprintf(stderr, "\t -Xlc <lc>\n");
++ fprintf(stderr, "\t\tNumber of literal context bits (0-4, default 3)\n");
++ fprintf(stderr, "\t -Xlp <lp>\n");
++ fprintf(stderr, "\t\tNumber of literal position bits (0-4, default 0)\n");
++ fprintf(stderr, "\t -Xpb <pb>\n");
++ fprintf(stderr, "\t\tNumber of position bits (0-4, default 2)\n");
++ fprintf(stderr, "\t -Xnice <nice>\n");
++ fprintf(stderr, "\t\tNice length of a match (5-273, default 64)\n");
++ fprintf(stderr, "\t -Xdict-size <dict-size>\n");
++ fprintf(stderr, "\t\tUse <dict-size> as the %s dictionary size. The",
++ lzmaver == LZMA_OPT_LZMA ? "LZMA" : "XZ");
++ fprintf(stderr, " dictionary size\n\t\tcan be specified as a");
++ fprintf(stderr, " percentage of the block size, or as an\n\t\t");
++ fprintf(stderr, "absolute value. The dictionary size must be less");
++ fprintf(stderr, " than or equal\n\t\tto the block size and %d bytes",
++ lzmaver == LZMA_OPT_LZMA ? 4096 : 8192);
++ fprintf(stderr, " or larger. It must also be\n\t\tstorable in the lzma");
++ fprintf(stderr, " header as either 2^n or as 2^n+2^(n+1).\n\t\t");
++ fprintf(stderr, "Example dict-sizes are 75%%, 50%%, 37.5%%, 25%%, or");
++ fprintf(stderr, " 32K, 16K, 8K\n\t\tetc.\n");
++
++}
+--- a/squashfs-tools/lzma_xz_wrapper.c
++++ b/squashfs-tools/lzma_xz_wrapper.c
+@@ -27,6 +27,7 @@
+
+ #include "squashfs_fs.h"
+ #include "compressor.h"
++#include "lzma_xz_options.h"
+
+ #define LZMA_PROPS_SIZE 5
+ #define LZMA_UNCOMP_SIZE 8
+@@ -38,13 +39,27 @@
+ static int lzma_compress(void *dummy, void *dest, void *src, int size,
+ int block_size, int *error)
+ {
++ uint32_t preset;
+ unsigned char *d = (unsigned char *) dest;
++ struct lzma_xz_options *opts = lzma_xz_get_options();
++
+ lzma_options_lzma opt;
+ lzma_stream strm = LZMA_STREAM_INIT;
+ int res;
+
+- lzma_lzma_preset(&opt, LZMA_OPTIONS);
+- opt.dict_size = block_size;
++ preset = opts->preset;
++
++ if (opts->extreme)
++ preset |= LZMA_PRESET_EXTREME;
++
++ lzma_lzma_preset(&opt, opts->preset);
++ opt.lc = opts->lc;
++ opt.lp = opts->lp;
++ opt.pb = opts->pb;
++ if (opts->fb)
++ opt.nice_len = opts->fb;
++
++ opt.dict_size = opts->dict_size;
+
+ res = lzma_alone_encoder(&strm, &opt);
+ if(res != LZMA_OK) {
+@@ -143,13 +158,45 @@ failed:
+ return -1;
+ }
+
++static int lzma_options(char *argv[], int argc)
++{
++ return lzma_xz_options(argv, argc, LZMA_OPT_LZMA);
++}
++
++
++static int lzma_options_post(int block_size)
++{
++ return lzma_xz_options_post(block_size, LZMA_OPT_LZMA);
++}
++
++
++static void *lzma_dump_options(int block_size, int *size)
++{
++ return lzma_xz_dump_options(block_size, size, 0);
++}
++
++
++static int lzma_extract_options(int block_size, void *buffer, int size)
++{
++ return lzma_xz_extract_options(block_size, buffer, size, LZMA_OPT_LZMA);
++}
++
++
++void lzma_usage()
++{
++ lzma_xz_usage(LZMA_OPT_LZMA);
++}
++
+
+ struct compressor lzma_comp_ops = {
+ .init = NULL,
+ .compress = lzma_compress,
+ .uncompress = lzma_uncompress,
+- .options = NULL,
+- .usage = NULL,
++ .options = lzma_options,
++ .options_post = lzma_options_post,
++ .dump_options = lzma_dump_options,
++ .extract_options = lzma_extract_options,
++ .usage = lzma_usage,
+ .id = LZMA_COMPRESSION,
+ .name = "lzma",
+ .supported = 1
+--- a/squashfs-tools/xz_wrapper.h
++++ b/squashfs-tools/xz_wrapper.h
+@@ -24,25 +24,6 @@
+ *
+ */
+
+-#ifndef linux
+-#define __BYTE_ORDER BYTE_ORDER
+-#define __BIG_ENDIAN BIG_ENDIAN
+-#define __LITTLE_ENDIAN LITTLE_ENDIAN
+-#else
+-#include <endian.h>
+-#endif
+-
+-#if __BYTE_ORDER == __BIG_ENDIAN
+-extern unsigned int inswap_le32(unsigned int);
+-
+-#define SQUASHFS_INSWAP_COMP_OPTS(s) { \
+- (s)->dictionary_size = inswap_le32((s)->dictionary_size); \
+- (s)->flags = inswap_le32((s)->flags); \
+-}
+-#else
+-#define SQUASHFS_INSWAP_COMP_OPTS(s)
+-#endif
+-
+ #define MEMLIMIT (32 * 1024 * 1024)
+
+ struct bcj {
+--- a/squashfs-tools/xz_wrapper.c
++++ b/squashfs-tools/xz_wrapper.c
+@@ -30,6 +30,7 @@
+ #include "squashfs_fs.h"
+ #include "xz_wrapper.h"
+ #include "compressor.h"
++#include "lzma_xz_options.h"
+
+ static struct bcj bcj[] = {
+ { "x86", LZMA_FILTER_X86, 0 },
+@@ -41,22 +42,18 @@ static struct bcj bcj[] = {
+ { NULL, LZMA_VLI_UNKNOWN, 0 }
+ };
+
+-static struct comp_opts comp_opts;
+-
+ static int filter_count = 1;
+-static int dictionary_size = 0;
+-static float dictionary_percent = 0;
+
+
+ static int xz_options(char *argv[], int argc)
+ {
+- int i;
+- char *name;
+-
+ if(strcmp(argv[0], "-Xbcj") == 0) {
++ int i;
++ char *name;
++
+ if(argc < 2) {
+ fprintf(stderr, "xz: -Xbcj missing filter\n");
+- goto failed;
++ return -2;
+ }
+
+ name = argv[1];
+@@ -76,190 +73,50 @@ static int xz_options(char *argv[], int
+ }
+ if(bcj[i].name == NULL) {
+ fprintf(stderr, "xz: -Xbcj unrecognised "
+- "filter\n");
+- goto failed;
+- }
+- }
+-
+- return 1;
+- } else if(strcmp(argv[0], "-Xdict-size") == 0) {
+- char *b;
+- float size;
+-
+- if(argc < 2) {
+- fprintf(stderr, "xz: -Xdict-size missing dict-size\n");
+- goto failed;
+- }
+-
+- size = strtof(argv[1], &b);
+- if(*b == '%') {
+- if(size <= 0 || size > 100) {
+- fprintf(stderr, "xz: -Xdict-size percentage "
+- "should be 0 < dict-size <= 100\n");
+- goto failed;
+- }
+-
+- dictionary_percent = size;
+- dictionary_size = 0;
+- } else {
+- if((float) ((int) size) != size) {
+- fprintf(stderr, "xz: -Xdict-size can't be "
+- "fractional unless a percentage of the"
+- " block size\n");
+- goto failed;
+- }
+-
+- dictionary_percent = 0;
+- dictionary_size = (int) size;
+-
+- if(*b == 'k' || *b == 'K')
+- dictionary_size *= 1024;
+- else if(*b == 'm' || *b == 'M')
+- dictionary_size *= 1024 * 1024;
+- else if(*b != '\0') {
+- fprintf(stderr, "xz: -Xdict-size invalid "
+- "dict-size\n");
+- goto failed;
++ "filter\n");
++ return -2;
+ }
+ }
+-
+ return 1;
++ } else {
++ return lzma_xz_options(argv, argc, LZMA_OPT_XZ);
+ }
+-
+- return -1;
+-
+-failed:
+- return -2;
+ }
+
+
+ static int xz_options_post(int block_size)
+ {
+- /*
+- * if -Xdict-size has been specified use this to compute the datablock
+- * dictionary size
+- */
+- if(dictionary_size || dictionary_percent) {
+- int n;
+-
+- if(dictionary_size) {
+- if(dictionary_size > block_size) {
+- fprintf(stderr, "xz: -Xdict-size is larger than"
+- " block_size\n");
+- goto failed;
+- }
+- } else
+- dictionary_size = block_size * dictionary_percent / 100;
+-
+- if(dictionary_size < 8192) {
+- fprintf(stderr, "xz: -Xdict-size should be 8192 bytes "
+- "or larger\n");
+- goto failed;
+- }
+-
+- /*
+- * dictionary_size must be storable in xz header as either
+- * 2^n or as 2^n+2^(n+1)
+- */
+- n = ffs(dictionary_size) - 1;
+- if(dictionary_size != (1 << n) &&
+- dictionary_size != ((1 << n) + (1 << (n + 1)))) {
+- fprintf(stderr, "xz: -Xdict-size is an unsupported "
+- "value, dict-size must be storable in xz "
+- "header\n");
+- fprintf(stderr, "as either 2^n or as 2^n+2^(n+1). "
+- "Example dict-sizes are 75%%, 50%%, 37.5%%, "
+- "25%%,\n");
+- fprintf(stderr, "or 32K, 16K, 8K etc.\n");
+- goto failed;
+- }
+-
+- } else
+- /* No -Xdict-size specified, use defaults */
+- dictionary_size = block_size;
+-
+- return 0;
+-
+-failed:
+- return -1;
++ return lzma_xz_options_post(block_size, LZMA_OPT_XZ);
+ }
+
+
+ static void *xz_dump_options(int block_size, int *size)
+ {
+- int flags = 0, i;
+-
+- /*
+- * don't store compressor specific options in file system if the
+- * default options are being used - no compressor options in the
+- * file system means the default options are always assumed
+- *
+- * Defaults are:
+- * metadata dictionary size: SQUASHFS_METADATA_SIZE
+- * datablock dictionary size: block_size
+- * 1 filter
+- */
+- if(dictionary_size == block_size && filter_count == 1)
+- return NULL;
++ int i, flags = 0;
+
+ for(i = 0; bcj[i].name; i++)
+ flags |= bcj[i].selected << i;
+
+- comp_opts.dictionary_size = dictionary_size;
+- comp_opts.flags = flags;
+-
+- SQUASHFS_INSWAP_COMP_OPTS(&comp_opts);
+-
+- *size = sizeof(comp_opts);
+- return &comp_opts;
++ return lzma_xz_dump_options(block_size, size, flags);
+ }
+
+
+ static int xz_extract_options(int block_size, void *buffer, int size)
+ {
+- struct comp_opts *comp_opts = buffer;
+- int flags, i, n;
+-
+- if(size == 0) {
+- /* set defaults */
+- dictionary_size = block_size;
+- flags = 0;
+- } else {
+- /* check passed comp opts struct is of the correct length */
+- if(size != sizeof(struct comp_opts))
+- goto failed;
+-
+- SQUASHFS_INSWAP_COMP_OPTS(comp_opts);
+-
+- dictionary_size = comp_opts->dictionary_size;
+- flags = comp_opts->flags;
+-
+- /*
+- * check that the dictionary size seems correct - the dictionary
+- * size should 2^n or 2^n+2^(n+1)
+- */
+- n = ffs(dictionary_size) - 1;
+- if(dictionary_size != (1 << n) &&
+- dictionary_size != ((1 << n) + (1 << (n + 1))))
+- goto failed;
+- }
++ int ret = lzma_xz_extract_options(block_size, buffer, size, LZMA_OPT_XZ);
+
+- filter_count = 1;
+- for(i = 0; bcj[i].name; i++) {
+- if((flags >> i) & 1) {
+- bcj[i].selected = 1;
+- filter_count ++;
+- } else
+- bcj[i].selected = 0;
++ if (!ret) {
++ int i;
++ struct lzma_xz_options *opts = lzma_xz_get_options();
++ for(i = 0; bcj[i].name; i++) {
++ if((opts->flags >> i) & 1) {
++ bcj[i].selected = 1;
++ filter_count ++;
++ } else
++ bcj[i].selected = 0;
++ }
+ }
+-
+- return 0;
+-
+-failed:
+- fprintf(stderr, "xz: error reading stored compressor options from "
+- "filesystem!\n");
+-
+- return -1;
++ return ret;
+ }
+
+
+@@ -268,6 +125,7 @@ static int xz_init(void **strm, int bloc
+ int i, j, filters = datablock ? filter_count : 1;
+ struct filter *filter = malloc(filters * sizeof(struct filter));
+ struct xz_stream *stream;
++ struct lzma_xz_options *opts = lzma_xz_get_options();
+
+ if(filter == NULL)
+ goto failed;
+@@ -281,7 +139,7 @@ static int xz_init(void **strm, int bloc
+
+ memset(filter, 0, filters * sizeof(struct filter));
+
+- stream->dictionary_size = datablock ? dictionary_size :
++ stream->dictionary_size = datablock ? opts->dict_size :
+ SQUASHFS_METADATA_SIZE;
+
+ filter[0].filter[0].id = LZMA_FILTER_LZMA2;
+@@ -323,14 +181,25 @@ static int xz_compress(void *strm, void
+ lzma_ret res = 0;
+ struct xz_stream *stream = strm;
+ struct filter *selected = NULL;
++ struct lzma_xz_options *opts = lzma_xz_get_options();
+
+ stream->filter[0].buffer = dest;
+
+ for(i = 0; i < stream->filters; i++) {
++ uint32_t preset = opts->preset;
+ struct filter *filter = &stream->filter[i];
+
+- if(lzma_lzma_preset(&stream->opt, LZMA_PRESET_DEFAULT))
+- goto failed;
++ if (opts->extreme)
++ preset |= LZMA_PRESET_EXTREME;
++
++ if(lzma_lzma_preset(&stream->opt, preset))
++ goto failed;
++
++ stream->opt.lc = opts->lc;
++ stream->opt.lp = opts->lp;
++ stream->opt.pb = opts->pb;
++ if (opts->fb)
++ stream->opt.nice_len = opts->fb;
+
+ stream->opt.dict_size = stream->dictionary_size;
+
+@@ -384,22 +253,13 @@ static int xz_uncompress(void *dest, voi
+
+ void xz_usage()
+ {
++ lzma_xz_usage(LZMA_OPT_XZ);
+ fprintf(stderr, "\t -Xbcj filter1,filter2,...,filterN\n");
+ fprintf(stderr, "\t\tCompress using filter1,filter2,...,filterN in");
+ fprintf(stderr, " turn\n\t\t(in addition to no filter), and choose");
+ fprintf(stderr, " the best compression.\n");
+ fprintf(stderr, "\t\tAvailable filters: x86, arm, armthumb,");
+ fprintf(stderr, " powerpc, sparc, ia64\n");
+- fprintf(stderr, "\t -Xdict-size <dict-size>\n");
+- fprintf(stderr, "\t\tUse <dict-size> as the XZ dictionary size. The");
+- fprintf(stderr, " dictionary size\n\t\tcan be specified as a");
+- fprintf(stderr, " percentage of the block size, or as an\n\t\t");
+- fprintf(stderr, "absolute value. The dictionary size must be less");
+- fprintf(stderr, " than or equal\n\t\tto the block size and 8192 bytes");
+- fprintf(stderr, " or larger. It must also be\n\t\tstorable in the xz");
+- fprintf(stderr, " header as either 2^n or as 2^n+2^(n+1).\n\t\t");
+- fprintf(stderr, "Example dict-sizes are 75%%, 50%%, 37.5%%, 25%%, or");
+- fprintf(stderr, " 32K, 16K, 8K\n\t\tetc.\n");
+ }
+
+
+--- a/squashfs-tools/Makefile
++++ b/squashfs-tools/Makefile
+@@ -140,6 +140,8 @@ COMPRESSORS += xz
+ endif
+
+ ifneq ($(LZMA_XZ_SUPPORT)$(XZ_SUPPORT),)
++MKSQUASHFS_OBJS += lzma_xz_options.o
++UNSQUASHFS_OBJS += lzma_xz_options.o
+ ifneq ($(LZMA_LIB),)
+ MKSQUASHFS_OBJS += $(LZMA_LIB)
+ UNSQUASHFS_OBJS += $(LZMA_LIB)
projects / openwrt.git / commitdiff