source/libs/zziplib/zziplib-0.13.62/zzip/mmapped.h

   1 #ifndef _ZZIP_MMAPPED_H_
   2 #define _ZZIP_MMAPPED_H_
   3 /*
   4  * NOTE: this is part of libzzipmmapped (i.e. it is not libzzip).
   5  *
   6  * simplified zip disk access using a mmapping of the whole archive.
   7  *
   8  * Author:
   9  *      Guido Draheim <guidod@gmx.de>
  10  *
  11  * Copyright (c) 2003,2004 Guido Draheim
  12  *          All rights reserved,
  13  *          use under the restrictions of the
  14  *          Lesser GNU General Public License
  15  *          or alternatively the restrictions
  16  *          of the Mozilla Public License 1.1
  17  */
  18
  19
  20 #include <zzip/types.h>
  21
  22 #ifdef _ZZIP_DISK_FILE_STRUCT
  23 #include <zlib.h> /* z_stream */
  24 #endif
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 typedef struct zzip_disk_file  ZZIP_DISK_FILE;
  31 typedef struct zzip_disk       ZZIP_DISK;
  32 /*  def struct zzip_disk_entry ZZIP_DISK_ENTRY; */
  33
  34 /* we expose this structure so third party applications can augment
  35  * on them. The mmapped zip access usually just needs the two pointers
  36  * specifying the mmapped area, whereever you have that from.
  37  */
  38 struct zzip_disk
  39 {
  40     zzip_byte_t* buffer; /* start of mmapped area, the base of all seekvals */
  41     zzip_byte_t* endbuf; /* end of mmapped area, i.e. buffer + buflen */
  42     void* reserved;    /* - for later extensions (might be renamed) */
  43     void* user;        /* - free for applications (use this!) */
  44     long  flags;       /* bit 0: findfile searches case-insensitive */
  45 #ifdef _WIN64
  46     __int64  mapped;
  47 #else
  48     long  mapped;      /* used for mmap() wrappers of zzip/__mmap.h */
  49 #endif
  50     long  unused;      /* - for later extensions (might be renamed) */
  51     long  code;        /* - free for applications (use this!) */
  52 };
  53
  54 /* fnmatch search shall be case insensitive */
  55 #define ZZIP_DISK_FLAGS_MATCH_NOCASE 1
  56 #define ZZIP_DISK_FLAGS_OWNED_BUFFER 2
  57
  58 typedef int (*zzip_strcmp_fn_t)(char*, char*);
  59 typedef int (*zzip_fnmatch_fn_t)(char*, char*, int);
  60
  61 #define zzip_disk_extern extern
  62
  63 zzip_disk_extern int
  64 zzip_disk_init(ZZIP_DISK* disk, void* buffer, zzip_size_t buflen);
  65
  66 zzip_disk_extern zzip__new__ ZZIP_DISK*
  67 zzip_disk_new(void);
  68
  69 zzip_disk_extern zzip__new__ ZZIP_DISK*
  70 zzip_disk_mmap(int fd);
  71
  72 zzip_disk_extern int
  73 zzip_disk_munmap(ZZIP_DISK* disk);
  74
  75 zzip_disk_extern zzip__new__ ZZIP_DISK*
  76 zzip_disk_open(char* filename);
  77
  78 zzip_disk_extern zzip__new__ ZZIP_DISK *
  79 zzip_disk_buffer(void *buffer, size_t buflen);
  80
  81 zzip_disk_extern int
  82 zzip_disk_close(ZZIP_DISK* disk);
  83
  84
  85 zzip_disk_extern ZZIP_DISK_ENTRY*
  86 zzip_disk_findfirst(ZZIP_DISK* disk);
  87
  88 zzip_disk_extern ZZIP_DISK_ENTRY*
  89 zzip_disk_findnext(ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
  90
  91 zzip_disk_extern zzip__new__ char*
  92 zzip_disk_entry_strdup_name(ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
  93 zzip_disk_extern zzip__new__ char*
  94 zzip_disk_entry_strdup_comment(ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
  95 zzip_disk_extern struct zzip_file_header*
  96 zzip_disk_entry_to_file_header(ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
  97 zzip_disk_extern zzip_byte_t*
  98 zzip_disk_entry_to_data(ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
  99
 100 zzip_disk_extern ZZIP_DISK_ENTRY*
 101 zzip_disk_findfile(ZZIP_DISK* disk,
 102                    char* filename, ZZIP_DISK_ENTRY* after,
 103                    zzip_strcmp_fn_t compare);
 104 zzip_disk_extern ZZIP_DISK_ENTRY*
 105 zzip_disk_findmatch(ZZIP_DISK* disk,
 106                     char* filespec, ZZIP_DISK_ENTRY* after,
 107                     zzip_fnmatch_fn_t compare, int flags);
 108
 109
 110 zzip_disk_extern zzip__new__ ZZIP_DISK_FILE*
 111 zzip_disk_entry_fopen (ZZIP_DISK* disk, ZZIP_DISK_ENTRY* entry);
 112
 113 zzip_disk_extern zzip__new__ ZZIP_DISK_FILE*
 114 zzip_disk_fopen (ZZIP_DISK* disk, char* filename);
 115
 116 zzip_disk_extern _zzip_size_t
 117 zzip_disk_fread (void* ptr, _zzip_size_t size, _zzip_size_t nmemb,
 118                  ZZIP_DISK_FILE* file);
 119 zzip_disk_extern int
 120 zzip_disk_fclose (ZZIP_DISK_FILE* file);
 121 int
 122 zzip_disk_feof (ZZIP_DISK_FILE* file);
 123
 124 #ifdef _ZZIP_DISK_FILE_STRUCT
 125 /**
 126  * typedef struct zzip_disk_file ZZIP_DISK_FILE;
 127  */
 128 struct zzip_disk_file
 129 {
 130     zzip_byte_t* buffer;               /* fopen disk->buffer */
 131     zzip_byte_t* endbuf;               /* fopen disk->endbuf */
 132     zzip_size_t avail;                 /* memorized for checks on EOF */
 133     z_stream zlib;                     /* for inflated blocks */
 134     zzip_byte_t* stored;               /* for stored blocks */
 135 };
 136 #endif
 137
 138 #ifdef __cplusplus
 139 }
 140 #endif
 141 #endif
 142