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Java example source code file (gzguts.h)
The gzguts.h Java example source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* gzguts.h -- zlib internal header definitions for gz* operations * Copyright (C) 2004, 2005, 2010 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ #ifdef _LARGEFILE64_SOURCE # ifndef _LARGEFILE_SOURCE # define _LARGEFILE_SOURCE 1 # endif # ifdef _FILE_OFFSET_BITS # undef _FILE_OFFSET_BITS # endif #endif #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) #else # define ZLIB_INTERNAL #endif #include <stdio.h> #include "zlib.h" #ifdef STDC # include <string.h> # include <stdlib.h> # include <limits.h> #endif #include <fcntl.h> #ifdef NO_DEFLATE /* for compatibility with old definition */ # define NO_GZCOMPRESS #endif #ifdef _MSC_VER # include <io.h> # define vsnprintf _vsnprintf #endif #ifndef local # define local static #endif /* compile with -Dlocal if your debugger can't find static symbols */ /* gz* functions always use library allocation functions */ #ifndef STDC extern voidp malloc OF((uInt size)); extern void free OF((voidpf ptr)); #endif /* get errno and strerror definition */ #if defined UNDER_CE # include <windows.h> # define zstrerror() gz_strwinerror((DWORD)GetLastError()) #else # ifdef STDC # include <errno.h> # define zstrerror() strerror(errno) # else # define zstrerror() "stdio error (consult errno)" # endif #endif /* provide prototypes for these when building zlib without LFS */ #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); #endif /* default i/o buffer size -- double this for output when reading */ #define GZBUFSIZE 8192 /* gzip modes, also provide a little integrity check on the passed structure */ #define GZ_NONE 0 #define GZ_READ 7247 #define GZ_WRITE 31153 #define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */ /* values for gz_state how */ #define LOOK 0 /* look for a gzip header */ #define COPY 1 /* copy input directly */ #define GZIP 2 /* decompress a gzip stream */ /* internal gzip file state data structure */ typedef struct { /* used for both reading and writing */ int mode; /* see gzip modes above */ int fd; /* file descriptor */ char *path; /* path or fd for error messages */ z_off64_t pos; /* current position in uncompressed data */ unsigned size; /* buffer size, zero if not allocated yet */ unsigned want; /* requested buffer size, default is GZBUFSIZE */ unsigned char *in; /* input buffer */ unsigned char *out; /* output buffer (double-sized when reading) */ unsigned char *next; /* next output data to deliver or write */ /* just for reading */ unsigned have; /* amount of output data unused at next */ int eof; /* true if end of input file reached */ z_off64_t start; /* where the gzip data started, for rewinding */ z_off64_t raw; /* where the raw data started, for seeking */ int how; /* 0: get header, 1: copy, 2: decompress */ int direct; /* true if last read direct, false if gzip */ /* just for writing */ int level; /* compression level */ int strategy; /* compression strategy */ /* seek request */ z_off64_t skip; /* amount to skip (already rewound if backwards) */ int seek; /* true if seek request pending */ /* error information */ int err; /* error code */ char *msg; /* error message */ /* zlib inflate or deflate stream */ z_stream strm; /* stream structure in-place (not a pointer) */ } gz_state; typedef gz_state FAR *gz_statep; /* shared functions */ void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *)); #if defined UNDER_CE char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error)); #endif /* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t value -- needed when comparing unsigned to z_off64_t, which is signed (possible z_off64_t types off_t, off64_t, and long are all signed) */ #ifdef INT_MAX # define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX) #else unsigned ZLIB_INTERNAL gz_intmax OF((void)); # define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax()) #endif Other Java examples (source code examples)Here is a short list of links related to this Java gzguts.h source code file: |
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