2018-05-04 16:08:28 +02:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2015-10-21 05:03:22 +02:00
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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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