projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3ec97ca4 | 1 | /* gzguts.h -- zlib internal header definitions for gz* operations\r |
| d11973f1 | 2 | * Copyright (c) 2015, Daryl McDaniel. All rights reserved.<BR>\r |
| 3ec97ca4 DM |
3 | * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler\r |
| 4 | * For conditions of distribution and use, see copyright notice in zlib.h\r | |
| 5 | */\r | |
| 6 | \r | |
| 7 | #ifdef _LARGEFILE64_SOURCE\r | |
| 8 | # ifndef _LARGEFILE_SOURCE\r | |
| 9 | # define _LARGEFILE_SOURCE 1\r | |
| 10 | # endif\r | |
| 11 | # ifdef _FILE_OFFSET_BITS\r | |
| 12 | # undef _FILE_OFFSET_BITS\r | |
| 13 | # endif\r | |
| 14 | #endif\r | |
| 15 | \r | |
| 16 | #ifdef HAVE_HIDDEN\r | |
| 17 | # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))\r | |
| 18 | #else\r | |
| 19 | # define ZLIB_INTERNAL\r | |
| 20 | #endif\r | |
| 21 | \r | |
| 22 | #include <stdio.h>\r | |
| 23 | #include "zlib.h"\r | |
| 24 | #ifdef STDC\r | |
| 25 | # include <string.h>\r | |
| 26 | # include <stdlib.h>\r | |
| 27 | # include <limits.h>\r | |
| 28 | #endif\r | |
| 29 | #include <fcntl.h>\r | |
| 30 | \r | |
| 31 | #ifdef _WIN32\r | |
| 32 | # include <stddef.h>\r | |
| 33 | #endif\r | |
| 34 | \r | |
| d11973f1 | 35 | #if (defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32)) && !defined(UEFI_C_SOURCE)\r |
| 3ec97ca4 DM |
36 | # include <io.h>\r |
| 37 | #endif\r | |
| 38 | \r | |
| 39 | #ifdef WINAPI_FAMILY\r | |
| 40 | # define open _open\r | |
| 41 | # define read _read\r | |
| 42 | # define write _write\r | |
| 43 | # define close _close\r | |
| 44 | #endif\r | |
| 45 | \r | |
| d11973f1 DM |
46 | // Needed to get the declarations for open, read, write, close\r |
| 47 | #ifdef UEFI_C_SOURCE\r | |
| 48 | # include <unistd.h>\r | |
| 49 | #endif\r | |
| 50 | \r | |
| 3ec97ca4 DM |
51 | #ifdef NO_DEFLATE /* for compatibility with old definition */\r |
| 52 | # define NO_GZCOMPRESS\r | |
| 53 | #endif\r | |
| 54 | \r | |
| 55 | #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)\r | |
| 56 | # ifndef HAVE_VSNPRINTF\r | |
| 57 | # define HAVE_VSNPRINTF\r | |
| 58 | # endif\r | |
| 59 | #endif\r | |
| 60 | \r | |
| 61 | #if defined(__CYGWIN__)\r | |
| 62 | # ifndef HAVE_VSNPRINTF\r | |
| 63 | # define HAVE_VSNPRINTF\r | |
| 64 | # endif\r | |
| 65 | #endif\r | |
| 66 | \r | |
| 67 | #if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)\r | |
| 68 | # ifndef HAVE_VSNPRINTF\r | |
| 69 | # define HAVE_VSNPRINTF\r | |
| 70 | # endif\r | |
| 71 | #endif\r | |
| 72 | \r | |
| 73 | #ifndef HAVE_VSNPRINTF\r | |
| 74 | # ifdef MSDOS\r | |
| 75 | /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),\r | |
| 76 | but for now we just assume it doesn't. */\r | |
| 77 | # define NO_vsnprintf\r | |
| 78 | # endif\r | |
| 79 | # ifdef __TURBOC__\r | |
| 80 | # define NO_vsnprintf\r | |
| 81 | # endif\r | |
| 82 | # ifdef WIN32\r | |
| 83 | /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */\r | |
| 84 | # if !defined(vsnprintf) && !defined(NO_vsnprintf)\r | |
| 85 | # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )\r | |
| 86 | # define vsnprintf _vsnprintf\r | |
| 87 | # endif\r | |
| 88 | # endif\r | |
| 89 | # endif\r | |
| 90 | # ifdef __SASC\r | |
| 91 | # define NO_vsnprintf\r | |
| 92 | # endif\r | |
| 93 | # ifdef VMS\r | |
| 94 | # define NO_vsnprintf\r | |
| 95 | # endif\r | |
| 96 | # ifdef __OS400__\r | |
| 97 | # define NO_vsnprintf\r | |
| 98 | # endif\r | |
| 99 | # ifdef __MVS__\r | |
| 100 | # define NO_vsnprintf\r | |
| 101 | # endif\r | |
| 102 | #endif\r | |
| 103 | \r | |
| 104 | /* unlike snprintf (which is required in C99, yet still not supported by\r | |
| 105 | Microsoft more than a decade later!), _snprintf does not guarantee null\r | |
| 106 | termination of the result -- however this is only used in gzlib.c where\r | |
| 107 | the result is assured to fit in the space provided */\r | |
| d11973f1 | 108 | #if defined(_MSC_VER) && !defined(UEFI_C_SOURCE)\r |
| 3ec97ca4 DM |
109 | # define snprintf _snprintf\r |
| 110 | #endif\r | |
| 111 | \r | |
| 112 | #ifndef local\r | |
| 113 | # define local static\r | |
| 114 | #endif\r | |
| 115 | /* compile with -Dlocal if your debugger can't find static symbols */\r | |
| 116 | \r | |
| 117 | /* gz* functions always use library allocation functions */\r | |
| 118 | #ifndef STDC\r | |
| 119 | extern voidp malloc OF((uInt size));\r | |
| 120 | extern void free OF((voidpf ptr));\r | |
| 121 | #endif\r | |
| 122 | \r | |
| 123 | /* get errno and strerror definition */\r | |
| 124 | #if defined UNDER_CE\r | |
| 125 | # include <windows.h>\r | |
| 126 | # define zstrerror() gz_strwinerror((DWORD)GetLastError())\r | |
| 127 | #else\r | |
| 128 | # ifndef NO_STRERROR\r | |
| 129 | # include <errno.h>\r | |
| 130 | # define zstrerror() strerror(errno)\r | |
| 131 | # else\r | |
| 132 | # define zstrerror() "stdio error (consult errno)"\r | |
| 133 | # endif\r | |
| 134 | #endif\r | |
| 135 | \r | |
| 136 | /* provide prototypes for these when building zlib without LFS */\r | |
| 137 | #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0\r | |
| 138 | ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));\r | |
| 139 | ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));\r | |
| 140 | ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));\r | |
| 141 | ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));\r | |
| 142 | #endif\r | |
| 143 | \r | |
| 144 | /* default memLevel */\r | |
| 145 | #if MAX_MEM_LEVEL >= 8\r | |
| 146 | # define DEF_MEM_LEVEL 8\r | |
| 147 | #else\r | |
| 148 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL\r | |
| 149 | #endif\r | |
| 150 | \r | |
| 151 | /* default i/o buffer size -- double this for output when reading (this and\r | |
| 152 | twice this must be able to fit in an unsigned type) */\r | |
| 153 | #define GZBUFSIZE 8192\r | |
| 154 | \r | |
| 155 | /* gzip modes, also provide a little integrity check on the passed structure */\r | |
| 156 | #define GZ_NONE 0\r | |
| 157 | #define GZ_READ 7247\r | |
| 158 | #define GZ_WRITE 31153\r | |
| 159 | #define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */\r | |
| 160 | \r | |
| 161 | /* values for gz_state how */\r | |
| 162 | #define LOOK 0 /* look for a gzip header */\r | |
| 163 | #define COPY 1 /* copy input directly */\r | |
| 164 | #define GZIP 2 /* decompress a gzip stream */\r | |
| 165 | \r | |
| 166 | /* internal gzip file state data structure */\r | |
| 167 | typedef struct {\r | |
| 168 | /* exposed contents for gzgetc() macro */\r | |
| 169 | struct gzFile_s x; /* "x" for exposed */\r | |
| 170 | /* x.have: number of bytes available at x.next */\r | |
| 171 | /* x.next: next output data to deliver or write */\r | |
| 172 | /* x.pos: current position in uncompressed data */\r | |
| 173 | /* used for both reading and writing */\r | |
| 174 | int mode; /* see gzip modes above */\r | |
| 175 | int fd; /* file descriptor */\r | |
| 176 | char *path; /* path or fd for error messages */\r | |
| 177 | unsigned size; /* buffer size, zero if not allocated yet */\r | |
| 178 | unsigned want; /* requested buffer size, default is GZBUFSIZE */\r | |
| 179 | unsigned char *in; /* input buffer */\r | |
| 180 | unsigned char *out; /* output buffer (double-sized when reading) */\r | |
| 181 | int direct; /* 0 if processing gzip, 1 if transparent */\r | |
| 182 | /* just for reading */\r | |
| 183 | int how; /* 0: get header, 1: copy, 2: decompress */\r | |
| 184 | z_off64_t start; /* where the gzip data started, for rewinding */\r | |
| 185 | int eof; /* true if end of input file reached */\r | |
| 186 | int past; /* true if read requested past end */\r | |
| 187 | /* just for writing */\r | |
| 188 | int level; /* compression level */\r | |
| 189 | int strategy; /* compression strategy */\r | |
| 190 | /* seek request */\r | |
| 191 | z_off64_t skip; /* amount to skip (already rewound if backwards) */\r | |
| 192 | int seek; /* true if seek request pending */\r | |
| 193 | /* error information */\r | |
| 194 | int err; /* error code */\r | |
| 195 | char *msg; /* error message */\r | |
| 196 | /* zlib inflate or deflate stream */\r | |
| 197 | z_stream strm; /* stream structure in-place (not a pointer) */\r | |
| 198 | } gz_state;\r | |
| 199 | typedef gz_state FAR *gz_statep;\r | |
| 200 | \r | |
| 201 | /* shared functions */\r | |
| 202 | void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));\r | |
| 203 | #if defined UNDER_CE\r | |
| 204 | char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));\r | |
| 205 | #endif\r | |
| 206 | \r | |
| 207 | /* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t\r | |
| 208 | value -- needed when comparing unsigned to z_off64_t, which is signed\r | |
| 209 | (possible z_off64_t types off_t, off64_t, and long are all signed) */\r | |
| 210 | #ifdef INT_MAX\r | |
| 211 | # define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)\r | |
| 212 | #else\r | |
| 213 | unsigned ZLIB_INTERNAL gz_intmax OF((void));\r | |
| 214 | # define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())\r | |
| 215 | #endif\r |