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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* zip.h
* Structures and functions for creating ZIP archives.
*/
#ifndef ZIP_H
#define ZIP_H
/* For general information on ZIP formats, you can look at jarfile.h
* in ns/security/lib/jar. Or look it up on the web...
*/
/* One entry in a ZIPfile. This corresponds to one file in the archive.
* We have to save this information because first all the files go into
* the archive with local headers; then at the end of the file we have to
* put the central directory entries for each file.
*/
typedef struct ZIPentry_s {
struct ZipLocal local; /* local header info */
struct ZipCentral central; /* central directory info */
char *filename; /* name of file */
char *comment; /* comment for this file -- optional */
struct ZIPentry_s *next;
} ZIPentry;
/* This structure contains the necessary data for putting a ZIP file
* together. Has some overall information and a list of ZIPentrys.
*/
typedef struct ZIPfile_s {
char *filename; /* ZIP file name */
char *comment; /* ZIP file comment -- may be NULL */
PRFileDesc *fp; /* ZIP file pointer */
ZIPentry *list; /* one entry for each file in the archive */
unsigned int time; /* the GMT time of creation, in DOS format */
unsigned int date; /* the GMT date of creation, in DOS format */
unsigned long central_start; /* starting offset of central directory */
unsigned long central_end; /*index right after the last byte of central*/
} ZIPfile;
/* Open a new ZIP file. Takes the name of the zip file and an optional
* comment to be included in the file. Returns a new ZIPfile structure
* which is used by JzipAdd and JzipClose
*/
ZIPfile *JzipOpen(char *filename, char *comment);
/* Add a file to a ZIP archive. Fullname is the path relative to the
* current directory. Filename is what the name will be stored as in the
* archive, and thus what it will be restored as. zipfile is a structure
* returned from a previous call to JzipOpen.
*
* Non-zero return code means error (although usually the function will
* call exit() rather than return an error--gotta fix this).
*/
int JzipAdd(char *fullname, char *filename, ZIPfile *zipfile,
int compression_level);
/* Finalize a ZIP archive. Adds all the footer information to the end of
* the file and closes it. Also DELETES THE ZIPFILE STRUCTURE that was
* passed in. So you never have to allocate or free a ZIPfile yourself.
*
* Non-zero return code means error (although usually the function will
* call exit() rather than return an error--gotta fix this).
*/
int JzipClose(ZIPfile *zipfile);
#endif /* ZIP_H */
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