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

   1 /*
   2  * Author:
   3  *      Guido Draheim <guidod@gmx.de>
   4  *      Tomi Ollila <Tomi.Ollila@iki.fi>
   5  *
   6  * Copyright (c) 1999,2000,2001,2002,2003 Guido Draheim
   7  *          All rights reserved
   8  *          use under the restrictions of the
   9  *          Lesser GNU General Public License
  10  *          or alternatively the restrictions
  11  *          of the Mozilla Public License 1.1
  12  *
  13  * This is the private header containing definitions that are not
  14  * use by a libzzip user application. Writing an extension lib that
  15  * uses libzzip will still want to include this. The extension
  16  * write should make way to have the ISO C9X integer types defined.
  17  */
  18 #ifndef _ZZIP_LIB_H /* zzip.h */
  19 #define _ZZIP_LIB_H
  20
  21 #include <zzip/zzip.h>
  22 #include <zzip/plugin.h>
  23 #include <zzip/stdint.h>
  24 #include <zzip/zzip32.h>
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 /*
  31  * this structure cannot be wildly enlarged... (see zzip-zip.c)
  32  */
  33 struct zzip_dir_hdr
  34 {
  35     uint32_t    d_usize;        /* uncompressed size */
  36     uint32_t    d_csize;        /* compressed size */
  37     uint32_t    d_crc32;        /* the adler32-checksum */
  38     uint32_t    d_off;          /* offset of file in zipfile */
  39     uint16_t    d_reclen;       /* next dir_hdr structure offset */
  40     uint16_t    d_namlen;       /* explicit namelen of d_name */
  41     uint8_t     d_compr;        /* the compression type, 0 = store, 8 = inflate */
  42     char        d_name[1];      /* the actual name of the entry, may contain DIRSEPs */
  43 };
  44 #define _ZZIP_DIRENT_HAVE_D_NAMLEN
  45 #define _ZZIP_DIRENT_HAVE_D_OFF
  46 #define _ZZIP_DIRENT_HAVE_D_RECLEN
  47
  48 /*
  49  * you shall not use this struct anywhere else than in zziplib sources.
  50  */
  51 struct zzip_dir
  52 {
  53     int fd;
  54     int errcode; /* zzip_error_t */
  55     long refcount;
  56     struct { /* reduce a lot of alloc/deallocations by caching these: */
  57         int * volatile locked;
  58         struct zzip_file * volatile fp;
  59         char * volatile buf32k;
  60     } cache;
  61     struct zzip_dir_hdr * hdr0;  /* zfi; */
  62     struct zzip_dir_hdr * hdr;   /* zdp; directory pointer, for dirent stuff */
  63     struct zzip_file * currentfp; /* last fp used... */
  64     struct zzip_dirent dirent;
  65     void*  realdir;               /* e.g. DIR* from posix dirent.h */
  66     char*  realname;
  67     zzip_strings_t* fileext;      /* list of fileext to test for */
  68     zzip_plugin_io_t io;          /* vtable for io routines */
  69 };
  70
  71 #define ZZIP_32K 32768
  72
  73 /* try to open a zip-basename with default_fileext */
  74 int      __zzip_try_open (zzip_char_t* filename, int filemode,
  75                           zzip_strings_t* ext, zzip_plugin_io_t io);
  76
  77 ZZIP_DIR *
  78 zzip_dir_fdopen(int fd, zzip_error_t * errcode_p);
  79
  80 ZZIP_DIR*
  81 zzip_dir_fdopen_ext_io(int fd, zzip_error_t * errorcode_p,
  82                        zzip_strings_t* ext, const zzip_plugin_io_t io);
  83
  84 ZZIP_DIR* /*depracated*/
  85 zzip_dir_alloc_ext_io (zzip_strings_t* ext, const zzip_plugin_io_t io);
  86
  87 #ifdef __cplusplus
  88 }
  89 #endif
  90 #endif /* _ZZIP_H */
  91