1 /* Definitions for using a zipped' archive.
2    Copyright (C) 1996-2013 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10 
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 GNU General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3.  If not see
18 <http://www.gnu.org/licenses/>.
19 
20 Java and all Java-based marks are trademarks or registered trademarks
21 of Sun Microsystems, Inc. in the United States and other countries.
22 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
23 
24 struct ZipFile {
25   char *name;
26   int fd;
27   long size;
28   long count;
29   long dir_size;
30   char *central_directory;
31 
32   /* Chain together in SeenZipFiles. */
33   struct ZipFile *next;
34 };
35 
36 typedef struct ZipFile ZipFile;
37 
38 struct ZipDirectory {
39   int direntry_size;
40   int filename_offset;
41   int compression_method;
42   unsigned size; /* length of file */
43   unsigned uncompressed_size; /* length of uncompressed data */
44   unsigned filestart;  /* start of file in archive */
45   ZipFile *zipf;
46   int filename_length;
47   /* char mid_padding[...]; */
48   /* char filename[filename_length]; */
49   /* char end_padding[...]; */
50 };
51 
52 typedef struct ZipDirectory ZipDirectory;
53 
54 extern struct ZipFile *SeenZipFiles;
55 
56 #define ZIPDIR_FILENAME(ZIPD) ((char*)(ZIPD)+(ZIPD)->filename_offset)
57 #define ZIPDIR_NEXT(ZIPD) \
58    ((ZipDirectory*)((char*)(ZIPD)+(ZIPD)->direntry_size))
59 #define ZIPMAGIC 0x504b0304
60 #define ZIPEMPTYMAGIC 0x504b0506
61 
62 extern ZipFile * opendir_in_zip (const char *, int);
63 extern int read_zip_archive (ZipFile *);
64 #ifdef GCC_JCF_H
65 extern int read_zip_member (JCF*, ZipDirectory*, ZipFile *);
66 extern int open_in_zip (struct JCF *, const char *, const char *, int);
67 #endif
68