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- /*
- * THIS FILE IS NOT IDENTICAL TO THE ORIGINAL
- * FROM THE BZIP2 DISTRIBUTION.
- *
- * It has been modified, mainly to break the library
- * into smaller pieces.
- *
- * Russ Cox
- * rsc@plan9.bell-labs.com
- * July 2000
- */
- /*-------------------------------------------------------------*/
- /*--- Library top-level functions. ---*/
- /*--- bzlib.c ---*/
- /*-------------------------------------------------------------*/
- /*--
- This file is a part of bzip2 and/or libbzip2, a program and
- library for lossless, block-sorting data compression.
- Copyright (C) 1996-2000 Julian R Seward. All rights reserved.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. The origin of this software must not be misrepresented; you must
- not claim that you wrote the original software. If you use this
- software in a product, an acknowledgment in the product
- documentation would be appreciated but is not required.
- 3. Altered source versions must be plainly marked as such, and must
- not be misrepresented as being the original software.
- 4. The name of the author may not be used to endorse or promote
- products derived from this software without specific prior written
- permission.
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- Julian Seward, Cambridge, UK.
- jseward@acm.org
- bzip2/libbzip2 version 1.0 of 21 March 2000
- This program is based on (at least) the work of:
- Mike Burrows
- David Wheeler
- Peter Fenwick
- Alistair Moffat
- Radford Neal
- Ian H. Witten
- Robert Sedgewick
- Jon L. Bentley
- For more information on these sources, see the manual.
- --*/
- /*--
- CHANGES
- ~~~~~~~
- 0.9.0 -- original version.
- 0.9.0a/b -- no changes in this file.
- 0.9.0c
- * made zero-length BZ_FLUSH work correctly in bzCompress().
- * fixed bzWrite/bzRead to ignore zero-length requests.
- * fixed bzread to correctly handle read requests after EOF.
- * wrong parameter order in call to bzDecompressInit in
- bzBuffToBuffDecompress. Fixed.
- --*/
- #include <stdio.h>
- #define BZ_MAX_UNUSED 5000
- typedef void BZFILE;
- BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
- const char *path,
- const char *mode
- );
- BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
- int fd,
- const char *mode
- );
-
- BZ_EXTERN int BZ_API(BZ2_bzread) (
- BZFILE* b,
- void* buf,
- int len
- );
- BZ_EXTERN int BZ_API(BZ2_bzwrite) (
- BZFILE* b,
- void* buf,
- int len
- );
- BZ_EXTERN int BZ_API(BZ2_bzflush) (
- BZFILE* b
- );
- BZ_EXTERN void BZ_API(BZ2_bzclose) (
- BZFILE* b
- );
- BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
- BZFILE *b,
- int *errnum
- );
- /*-- High(er) level library functions --*/
- BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
- int* bzerror,
- FILE* f,
- int verbosity,
- int small,
- void* unused,
- int nUnused
- );
- BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
- int* bzerror,
- BZFILE* b
- );
- BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
- int* bzerror,
- BZFILE* b,
- void** unused,
- int* nUnused
- );
- BZ_EXTERN int BZ_API(BZ2_bzRead) (
- int* bzerror,
- BZFILE* b,
- void* buf,
- int len
- );
- BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
- int* bzerror,
- FILE* f,
- int blockSize100k,
- int verbosity,
- int workFactor
- );
- BZ_EXTERN void BZ_API(BZ2_bzWrite) (
- int* bzerror,
- BZFILE* b,
- void* buf,
- int len
- );
- BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
- int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in,
- unsigned int* nbytes_out
- );
- BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
- int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in_lo32,
- unsigned int* nbytes_in_hi32,
- unsigned int* nbytes_out_lo32,
- unsigned int* nbytes_out_hi32
- );
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