| Geant4 Cross Reference |
1 /* gzguts.h -- zlib internal header definition 1
2 * Copyright (C) 2004-2019 Mark Adler
3 * For conditions of distribution and use, see
4 */
5
6 #ifdef _LARGEFILE64_SOURCE
7 # ifndef _LARGEFILE_SOURCE
8 # define _LARGEFILE_SOURCE 1
9 # endif
10 # ifdef _FILE_OFFSET_BITS
11 # undef _FILE_OFFSET_BITS
12 # endif
13 #endif
14
15 #ifdef HAVE_HIDDEN
16 # define ZLIB_INTERNAL __attribute__((visibil
17 #else
18 # define ZLIB_INTERNAL
19 #endif
20
21 #include <stdio.h>
22 #include "zlib.h"
23 #ifdef STDC
24 # include <string.h>
25 # include <stdlib.h>
26 # include <limits.h>
27 #endif
28
29 #ifndef _POSIX_SOURCE
30 # define _POSIX_SOURCE
31 #endif
32 #include <fcntl.h>
33
34 #ifdef _WIN32
35 # include <stddef.h>
36 #endif
37
38 #if defined(__TURBOC__) || defined(_MSC_VER) |
39 # include <io.h>
40 #endif
41
42 #if defined(_WIN32)
43 # define WIDECHAR
44 #endif
45
46 #ifdef WINAPI_FAMILY
47 # define open _open
48 # define read _read
49 # define write _write
50 # define close _close
51 #endif
52
53 #ifdef NO_DEFLATE /* for compatibility w
54 # define NO_GZCOMPRESS
55 #endif
56
57 #if defined(STDC99) || (defined(__TURBOC__) &&
58 # ifndef HAVE_VSNPRINTF
59 # define HAVE_VSNPRINTF
60 # endif
61 #endif
62
63 #if defined(__CYGWIN__)
64 # ifndef HAVE_VSNPRINTF
65 # define HAVE_VSNPRINTF
66 # endif
67 #endif
68
69 #if defined(MSDOS) && defined(__BORLANDC__) &&
70 # ifndef HAVE_VSNPRINTF
71 # define HAVE_VSNPRINTF
72 # endif
73 #endif
74
75 #ifndef HAVE_VSNPRINTF
76 # ifdef MSDOS
77 /* vsnprintf may exist on some MS-DOS compiler
78 but for now we just assume it doesn't. */
79 # define NO_vsnprintf
80 # endif
81 # ifdef __TURBOC__
82 # define NO_vsnprintf
83 # endif
84 # ifdef WIN32
85 /* In Win32, vsnprintf is available as the "no
86 # if !defined(vsnprintf) && !defined(NO_vsn
87 # if !defined(_MSC_VER) || ( defined(_MSC
88 # define vsnprintf _vsnprintf
89 # endif
90 # endif
91 # endif
92 # ifdef __SASC
93 # define NO_vsnprintf
94 # endif
95 # ifdef VMS
96 # define NO_vsnprintf
97 # endif
98 # ifdef __OS400__
99 # define NO_vsnprintf
100 # endif
101 # ifdef __MVS__
102 # define NO_vsnprintf
103 # endif
104 #endif
105
106 /* unlike snprintf (which is required in C99),
107 null termination of the result -- however t
108 the result is assured to fit in the space p
109 #if defined(_MSC_VER) && _MSC_VER < 1900
110 # define snprintf _snprintf
111 #endif
112
113 #ifndef local
114 # define local static
115 #endif
116 /* since "static" is used to mean two complete
117 define "local" for the non-static meaning o
118 (compile with -Dlocal if your debugger can'
119
120 /* gz* functions always use library allocation
121 #ifndef STDC
122 extern voidp malloc OF((uInt size));
123 extern void free OF((voidpf ptr));
124 #endif
125
126 /* get errno and strerror definition */
127 #if defined UNDER_CE
128 # include <windows.h>
129 # define zstrerror() gz_strwinerror((DWORD)Ge
130 #else
131 # ifndef NO_STRERROR
132 # include <errno.h>
133 # define zstrerror() strerror(errno)
134 # else
135 # define zstrerror() "stdio error (consult
136 # endif
137 #endif
138
139 /* provide prototypes for these when building
140 #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LA
141 ZEXTERN gzFile ZEXPORT gzopen64 OF((const
142 ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzF
143 ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzF
144 ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((g
145 #endif
146
147 /* default memLevel */
148 #if MAX_MEM_LEVEL >= 8
149 # define DEF_MEM_LEVEL 8
150 #else
151 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
152 #endif
153
154 /* default i/o buffer size -- double this for
155 twice this must be able to fit in an unsign
156 #define GZBUFSIZE 8192
157
158 /* gzip modes, also provide a little integrity
159 #define GZ_NONE 0
160 #define GZ_READ 7247
161 #define GZ_WRITE 31153
162 #define GZ_APPEND 1 /* mode set to GZ_WRIT
163
164 /* values for gz_state how */
165 #define LOOK 0 /* look for a gzip header
166 #define COPY 1 /* copy input directly */
167 #define GZIP 2 /* decompress a gzip strea
168
169 /* internal gzip file state data structure */
170 typedef struct {
171 /* exposed contents for gzgetc() macro
172 struct gzFile_s x; /* "x" for exposed
173 /* x.have: number
174 /* x.next: next ou
175 /* x.pos: current
176 /* used for both reading and writing *
177 int mode; /* see gzip modes
178 int fd; /* file descriptor
179 char *path; /* path or fd for
180 unsigned size; /* buffer size, ze
181 unsigned want; /* requested buffe
182 unsigned char *in; /* input buffer (d
183 unsigned char *out; /* output buffer (
184 int direct; /* 0 if processing
185 /* just for reading */
186 int how; /* 0: get header,
187 z_off64_t start; /* where the gzip
188 int eof; /* true if end of
189 int past; /* true if read re
190 /* just for writing */
191 int level; /* compression lev
192 int strategy; /* compression str
193 int reset; /* true if a reset
194 /* seek request */
195 z_off64_t skip; /* amount to skip
196 int seek; /* true if seek re
197 /* error information */
198 int err; /* error code */
199 char *msg; /* error message *
200 /* zlib inflate or deflate stream */
201 z_stream strm; /* stream structur
202 } gz_state;
203 typedef gz_state FAR *gz_statep;
204
205 /* shared functions */
206 void ZLIB_INTERNAL gz_error OF((gz_statep, int
207 #if defined UNDER_CE
208 char ZLIB_INTERNAL *gz_strwinerror OF((DWORD e
209 #endif
210
211 /* GT_OFF(x), where x is an unsigned value, is
212 value -- needed when comparing unsigned to
213 (possible z_off64_t types off_t, off64_t, a
214 #ifdef INT_MAX
215 # define GT_OFF(x) (sizeof(int) == sizeof(z_o
216 #else
217 unsigned ZLIB_INTERNAL gz_intmax OF((void));
218 # define GT_OFF(x) (sizeof(int) == sizeof(z_o
219 #endif
220