zip.h (2923B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 /* zip.h 6 * Structures and functions for creating ZIP archives. 7 */ 8 #ifndef ZIP_H 9 #define ZIP_H 10 11 /* For general information on ZIP formats, you can look at jarfile.h 12 * in ns/security/lib/jar. Or look it up on the web... 13 */ 14 15 /* One entry in a ZIPfile. This corresponds to one file in the archive. 16 * We have to save this information because first all the files go into 17 * the archive with local headers; then at the end of the file we have to 18 * put the central directory entries for each file. 19 */ 20 typedef struct ZIPentry_s { 21 struct ZipLocal local; /* local header info */ 22 struct ZipCentral central; /* central directory info */ 23 char *filename; /* name of file */ 24 char *comment; /* comment for this file -- optional */ 25 26 struct ZIPentry_s *next; 27 } ZIPentry; 28 29 /* This structure contains the necessary data for putting a ZIP file 30 * together. Has some overall information and a list of ZIPentrys. 31 */ 32 typedef struct ZIPfile_s { 33 char *filename; /* ZIP file name */ 34 char *comment; /* ZIP file comment -- may be NULL */ 35 PRFileDesc *fp; /* ZIP file pointer */ 36 ZIPentry *list; /* one entry for each file in the archive */ 37 unsigned int time; /* the GMT time of creation, in DOS format */ 38 unsigned int date; /* the GMT date of creation, in DOS format */ 39 unsigned long central_start; /* starting offset of central directory */ 40 unsigned long central_end; /*index right after the last byte of central*/ 41 } ZIPfile; 42 43 /* Open a new ZIP file. Takes the name of the zip file and an optional 44 * comment to be included in the file. Returns a new ZIPfile structure 45 * which is used by JzipAdd and JzipClose 46 */ 47 ZIPfile *JzipOpen(char *filename, char *comment); 48 49 /* Add a file to a ZIP archive. Fullname is the path relative to the 50 * current directory. Filename is what the name will be stored as in the 51 * archive, and thus what it will be restored as. zipfile is a structure 52 * returned from a previous call to JzipOpen. 53 * 54 * Non-zero return code means error (although usually the function will 55 * call exit() rather than return an error--gotta fix this). 56 */ 57 int JzipAdd(char *fullname, char *filename, ZIPfile *zipfile, 58 int compression_level); 59 60 /* Finalize a ZIP archive. Adds all the footer information to the end of 61 * the file and closes it. Also DELETES THE ZIPFILE STRUCTURE that was 62 * passed in. So you never have to allocate or free a ZIPfile yourself. 63 * 64 * Non-zero return code means error (although usually the function will 65 * call exit() rather than return an error--gotta fix this). 66 */ 67 int JzipClose(ZIPfile *zipfile); 68 69 #endif /* ZIP_H */