compression.c File Reference

#include <rz_util.h>
#include <zlib.h>

Go to the source code of this file.

Macros
#define	MAXOUT   50000000

Functions
RZ_API ut8 *	rz_inflate (RZ_NONNULL const ut8 *src, int srcLen, int *srcConsumed, int *dstLen)
	inflate zlib compressed or gzipped, automatically accepts either the zlib or gzip format, and use MAX_WBITS as the window size logarithm. More...
RZ_API ut8 *	rz_inflate_ignore_header (RZ_NONNULL const ut8 *src, int srcLen, int *srcConsumed, int *dstLen)
	inflate zlib compressed or gzipped. The input must be a raw stream with no header or trailer. More...
RZ_API ut8 *	rz_inflatew (RZ_NONNULL const ut8 *src, int srcLen, int *srcConsumed, int *dstLen, int wbits)
RZ_API ut8 *	rz_deflatew (RZ_NONNULL const ut8 *src, int srcLen, int *srcConsumed, int *dstLen, int wbits)
RZ_API bool	rz_deflatew_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed, int wbits)
RZ_API bool	rz_inflatew_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed, int wbits)
RZ_API ut8 *	rz_deflate (RZ_NONNULL const ut8 *src, int srcLen, int *srcConsumed, int *dstLen)
	deflate uncompressed data to zlib or gzipped, use MAX_WBITS as the window size logarithm. More...
RZ_API bool	rz_deflate_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed)
	deflate uncompressed data in RzBbuffer to zlib or gzipped, use MAX_WBITS as the window size logarithm. More...
RZ_API bool	rz_inflate_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed)
	inflate compressed data in RzBbuffer, use MAX_WBITS as the window size logarithm. More...
static bool	lzma_action_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed, bool encode)
RZ_API bool	rz_lzma_dec_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed)
	Decompress the src buffer with LZMA algorithm and put the decompressed data in dst. More...
RZ_API bool	rz_lzma_enc_buf (RZ_NONNULL RzBuffer *src, RZ_NONNULL RzBuffer *dst, ut64 block_size, ut8 *src_consumed)
	Compress the src buffer with LZMA algorithm and put the compressed data in dst. More...

Macro Definition Documentation

MAXOUT

#define MAXOUT   50000000

Definition at line 12 of file compression.c.

Function Documentation

lzma_action_buf()

static bool lzma_action_buf ( RZ_NONNULL RzBuffer *  src, RZ_NONNULL RzBuffer *  dst, ut64  block_size, ut8 *  src_consumed, bool  encode  )

static

Definition at line 449 of file compression.c.

                                                                                                                                 {
    return false;
}

Referenced by rz_lzma_dec_buf(), and rz_lzma_enc_buf().

rz_deflate()

RZ_API ut8* rz_deflate	(	RZ_NONNULL const ut8 *	src,
		int	srcLen,
		int *	srcConsumed,
		int *	dstLen
	)

deflate uncompressed data to zlib or gzipped, use MAX_WBITS as the window size logarithm.

See also

rz_deflatew()

Definition at line 340 of file compression.c.

                                                                                             {
    rz_return_val_if_fail(src, NULL);
    rz_return_val_if_fail(srcLen > 0, NULL);
    return rz_deflatew(src, srcLen, srcConsumed, dstLen, MAX_WBITS + 16);
}

References MAX_WBITS, NULL, rz_deflatew(), rz_return_val_if_fail, and src.

rz_deflate_buf()

RZ_API bool rz_deflate_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed
	)

deflate uncompressed data in RzBbuffer to zlib or gzipped, use MAX_WBITS as the window size logarithm.

See also

rz_deflatew_buf()

Definition at line 350 of file compression.c.

                                                                                                                   {
    rz_return_val_if_fail(src && dst, false);
    rz_return_val_if_fail(block_size > 0, false);
    return rz_deflatew_buf(src, dst, block_size, src_consumed, MAX_WBITS + 16);
}

References dst, MAX_WBITS, rz_deflatew_buf(), rz_return_val_if_fail, and src.

Referenced by rz_file_deflate().

rz_deflatew()

RZ_API ut8* rz_deflatew	(	RZ_NONNULL const ut8 *	src,
		int	srcLen,
		int *	srcConsumed,
		int *	dstLen,
		int	wbits
	)

Definition at line 323 of file compression.c.

                                                                                                         {
    return NULL;
}

References NULL.

Referenced by rz_deflate().

rz_deflatew_buf()

RZ_API bool rz_deflatew_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed,
		int	wbits
	)

Definition at line 327 of file compression.c.

                                                                                                                               {
    return false;
}

Referenced by rz_deflate_buf(), and rz_sign_flirt_write_compressed_pattern_to_buffer().

rz_inflate()

RZ_API ut8* rz_inflate	(	RZ_NONNULL const ut8 *	src,
		int	srcLen,
		int *	srcConsumed,
		int *	dstLen
	)

inflate zlib compressed or gzipped, automatically accepts either the zlib or gzip format, and use MAX_WBITS as the window size logarithm.

See also

rz_inflatew()

Definition at line 18 of file compression.c.

                                                                                             {
    rz_return_val_if_fail(src, NULL);
    rz_return_val_if_fail(srcLen > 0, NULL);
    return rz_inflatew(src, srcLen, srcConsumed, dstLen, MAX_WBITS + 32);
}

References MAX_WBITS, NULL, rz_inflatew(), rz_return_val_if_fail, and src.

Referenced by __open(), rz_cmd_print(), rz_file_gzslurp(), and rz_sign_flirt_parse_compressed_pattern_from_buffer().

rz_inflate_buf()

RZ_API bool rz_inflate_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed
	)

inflate compressed data in RzBbuffer, use MAX_WBITS as the window size logarithm.

See also

rz_inflatew_buf()

Definition at line 360 of file compression.c.

                                                                                                                   {
    rz_return_val_if_fail(src && dst, false);
    rz_return_val_if_fail(block_size > 0, false);
    return rz_inflatew_buf(src, dst, block_size, src_consumed, MAX_WBITS + 32);
}

References dst, MAX_WBITS, rz_inflatew_buf(), rz_return_val_if_fail, and src.

Referenced by rz_file_inflate().

rz_inflate_ignore_header()

RZ_API ut8* rz_inflate_ignore_header	(	RZ_NONNULL const ut8 *	src,
		int	srcLen,
		int *	srcConsumed,
		int *	dstLen
	)

inflate zlib compressed or gzipped. The input must be a raw stream with no header or trailer.

See also

rz_inflatew()

Definition at line 28 of file compression.c.

                                                                                                           {
    rz_return_val_if_fail(src, NULL);
    rz_return_val_if_fail(srcLen > 0, NULL);
    return rz_inflatew(src, srcLen, srcConsumed, dstLen, -MAX_WBITS);
}

References MAX_WBITS, NULL, rz_inflatew(), rz_return_val_if_fail, and src.

Referenced by rz_sign_flirt_parse_compressed_pattern_from_buffer().

rz_inflatew()

RZ_API ut8* rz_inflatew	(	RZ_NONNULL const ut8 *	src,
		int	srcLen,
		int *	srcConsumed,
		int *	dstLen,
		int	wbits
	)

Definition at line 319 of file compression.c.

                                                                                                         {
    return NULL;
}

References NULL.

Referenced by rz_inflate(), and rz_inflate_ignore_header().

rz_inflatew_buf()

RZ_API bool rz_inflatew_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed,
		int	wbits
	)

Definition at line 331 of file compression.c.

                                                                                                                               {
    return false;
}

Referenced by rz_inflate_buf().

rz_lzma_dec_buf()

RZ_API bool rz_lzma_dec_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed
	)

Decompress the src buffer with LZMA algorithm and put the decompressed data in dst.

Parameters

src	Where to read the compressed data from
dst	Where to write the decompressed data to
block_size	Decompression can happen block after block. Specify the size of the block here.

Returns

true if decompression was successful, false otherwise

Definition at line 462 of file compression.c.

                                                                                                                    {
    return lzma_action_buf(src, dst, block_size, src_consumed, false);
}

References dst, lzma_action_buf(), and src.

Referenced by get_gnu_debugdata_elf_symbols().

rz_lzma_enc_buf()

RZ_API bool rz_lzma_enc_buf	(	RZ_NONNULL RzBuffer *	src,
		RZ_NONNULL RzBuffer *	dst,
		ut64	block_size,
		ut8 *	src_consumed
	)

Compress the src buffer with LZMA algorithm and put the compressed data in dst.

Parameters

src	Where to read the decompressed data from
dst	Where to write the compressed data to
block_size	Compression can happen block after block. Specify the size of the block here.

Returns

true if compression was successful, false otherwise

Definition at line 474 of file compression.c.

                                                                                                                    {
    return lzma_action_buf(src, dst, block_size, src_consumed, true);
}

References dst, lzma_action_buf(), and src.