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101 lines
3.9 KiB
C
101 lines
3.9 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/* zip.h
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* Structures and functions for creating ZIP archives.
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*/
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#ifndef ZIP_H
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#define ZIP_H
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/* For general information on ZIP formats, you can look at jarfile.h
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* in ns/security/lib/jar. Or look it up on the web...
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*/
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/* One entry in a ZIPfile. This corresponds to one file in the archive.
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* We have to save this information because first all the files go into
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* the archive with local headers; then at the end of the file we have to
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* put the central directory entries for each file.
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*/
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typedef struct ZIPentry_s {
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struct ZipLocal local; /* local header info */
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struct ZipCentral central; /* central directory info */
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char *filename; /* name of file */
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char *comment; /* comment for this file -- optional */
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struct ZIPentry_s *next;
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} ZIPentry;
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/* This structure contains the necessary data for putting a ZIP file
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* together. Has some overall information and a list of ZIPentrys.
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*/
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typedef struct ZIPfile_s {
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char *filename; /* ZIP file name */
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char *comment; /* ZIP file comment -- may be NULL */
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PRFileDesc *fp; /* ZIP file pointer */
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ZIPentry *list; /* one entry for each file in the archive */
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unsigned int time; /* the GMT time of creation, in DOS format */
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unsigned int date; /* the GMT date of creation, in DOS format */
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unsigned long central_start; /* starting offset of central directory */
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unsigned long central_end; /*index right after the last byte of central*/
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} ZIPfile;
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/* Open a new ZIP file. Takes the name of the zip file and an optional
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* comment to be included in the file. Returns a new ZIPfile structure
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* which is used by JzipAdd and JzipClose
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*/
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ZIPfile* JzipOpen(char *filename, char *comment);
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/* Add a file to a ZIP archive. Fullname is the path relative to the
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* current directory. Filename is what the name will be stored as in the
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* archive, and thus what it will be restored as. zipfile is a structure
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* returned from a previous call to JzipOpen.
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*
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* Non-zero return code means error (although usually the function will
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* call exit() rather than return an error--gotta fix this).
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*/
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int JzipAdd(char *fullname, char *filename, ZIPfile *zipfile,
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int compression_level);
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/* Finalize a ZIP archive. Adds all the footer information to the end of
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* the file and closes it. Also DELETES THE ZIPFILE STRUCTURE that was
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* passed in. So you never have to allocate or free a ZIPfile yourself.
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*
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* Non-zero return code means error (although usually the function will
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* call exit() rather than return an error--gotta fix this).
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*/
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int JzipClose (ZIPfile *zipfile);
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#endif /* ZIP_H */
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