1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/nss/lib/zlib/gzguts.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,132 @@
1.4 +/* gzguts.h -- zlib internal header definitions for gz* operations
1.5 + * Copyright (C) 2004, 2005, 2010 Mark Adler
1.6 + * For conditions of distribution and use, see copyright notice in zlib.h
1.7 + */
1.8 +
1.9 +#ifdef _LARGEFILE64_SOURCE
1.10 +# ifndef _LARGEFILE_SOURCE
1.11 +# define _LARGEFILE_SOURCE 1
1.12 +# endif
1.13 +# ifdef _FILE_OFFSET_BITS
1.14 +# undef _FILE_OFFSET_BITS
1.15 +# endif
1.16 +#endif
1.17 +
1.18 +#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
1.19 +# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
1.20 +#else
1.21 +# define ZLIB_INTERNAL
1.22 +#endif
1.23 +
1.24 +#include <stdio.h>
1.25 +#include "zlib.h"
1.26 +#ifdef STDC
1.27 +# include <string.h>
1.28 +# include <stdlib.h>
1.29 +# include <limits.h>
1.30 +#endif
1.31 +#include <fcntl.h>
1.32 +
1.33 +#ifdef NO_DEFLATE /* for compatibility with old definition */
1.34 +# define NO_GZCOMPRESS
1.35 +#endif
1.36 +
1.37 +#ifdef _MSC_VER
1.38 +# include <io.h>
1.39 +# define vsnprintf _vsnprintf
1.40 +#endif
1.41 +
1.42 +#ifndef local
1.43 +# define local static
1.44 +#endif
1.45 +/* compile with -Dlocal if your debugger can't find static symbols */
1.46 +
1.47 +/* gz* functions always use library allocation functions */
1.48 +#ifndef STDC
1.49 + extern voidp malloc OF((uInt size));
1.50 + extern void free OF((voidpf ptr));
1.51 +#endif
1.52 +
1.53 +/* get errno and strerror definition */
1.54 +#if defined UNDER_CE
1.55 +# include <windows.h>
1.56 +# define zstrerror() gz_strwinerror((DWORD)GetLastError())
1.57 +#else
1.58 +# ifdef STDC
1.59 +# include <errno.h>
1.60 +# define zstrerror() strerror(errno)
1.61 +# else
1.62 +# define zstrerror() "stdio error (consult errno)"
1.63 +# endif
1.64 +#endif
1.65 +
1.66 +/* provide prototypes for these when building zlib without LFS */
1.67 +#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
1.68 + ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
1.69 + ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
1.70 + ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
1.71 + ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
1.72 +#endif
1.73 +
1.74 +/* default i/o buffer size -- double this for output when reading */
1.75 +#define GZBUFSIZE 8192
1.76 +
1.77 +/* gzip modes, also provide a little integrity check on the passed structure */
1.78 +#define GZ_NONE 0
1.79 +#define GZ_READ 7247
1.80 +#define GZ_WRITE 31153
1.81 +#define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */
1.82 +
1.83 +/* values for gz_state how */
1.84 +#define LOOK 0 /* look for a gzip header */
1.85 +#define COPY 1 /* copy input directly */
1.86 +#define GZIP 2 /* decompress a gzip stream */
1.87 +
1.88 +/* internal gzip file state data structure */
1.89 +typedef struct {
1.90 + /* used for both reading and writing */
1.91 + int mode; /* see gzip modes above */
1.92 + int fd; /* file descriptor */
1.93 + char *path; /* path or fd for error messages */
1.94 + z_off64_t pos; /* current position in uncompressed data */
1.95 + unsigned size; /* buffer size, zero if not allocated yet */
1.96 + unsigned want; /* requested buffer size, default is GZBUFSIZE */
1.97 + unsigned char *in; /* input buffer */
1.98 + unsigned char *out; /* output buffer (double-sized when reading) */
1.99 + unsigned char *next; /* next output data to deliver or write */
1.100 + /* just for reading */
1.101 + unsigned have; /* amount of output data unused at next */
1.102 + int eof; /* true if end of input file reached */
1.103 + z_off64_t start; /* where the gzip data started, for rewinding */
1.104 + z_off64_t raw; /* where the raw data started, for seeking */
1.105 + int how; /* 0: get header, 1: copy, 2: decompress */
1.106 + int direct; /* true if last read direct, false if gzip */
1.107 + /* just for writing */
1.108 + int level; /* compression level */
1.109 + int strategy; /* compression strategy */
1.110 + /* seek request */
1.111 + z_off64_t skip; /* amount to skip (already rewound if backwards) */
1.112 + int seek; /* true if seek request pending */
1.113 + /* error information */
1.114 + int err; /* error code */
1.115 + char *msg; /* error message */
1.116 + /* zlib inflate or deflate stream */
1.117 + z_stream strm; /* stream structure in-place (not a pointer) */
1.118 +} gz_state;
1.119 +typedef gz_state FAR *gz_statep;
1.120 +
1.121 +/* shared functions */
1.122 +void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
1.123 +#if defined UNDER_CE
1.124 +char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));
1.125 +#endif
1.126 +
1.127 +/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
1.128 + value -- needed when comparing unsigned to z_off64_t, which is signed
1.129 + (possible z_off64_t types off_t, off64_t, and long are all signed) */
1.130 +#ifdef INT_MAX
1.131 +# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
1.132 +#else
1.133 +unsigned ZLIB_INTERNAL gz_intmax OF((void));
1.134 +# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
1.135 +#endif
