1/* 2 * Copyright (c) 2005-2007 Rob Braun 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Rob Braun nor the names of his contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29/* 30 * 03-Apr-2005 31 * DRI: Rob Braun <bbraun@synack.net> 32 */ 33/* 34 * Portions Copyright 2006, Apple Computer, Inc. 35 * Christopher Ryan <ryanc@apple.com> 36 */ 37 38 39#ifndef _XAR_ARCHIVE_H_ 40#define _XAR_ARCHIVE_H_ 41#include <zlib.h> 42#include <libxml/hash.h> 43#ifdef __APPLE__ 44#include <CommonCrypto/CommonDigest.h> 45#include <CommonCrypto/CommonDigestSPI.h> 46#else 47#include <openssl/evp.h> 48#endif 49#include <sys/types.h> 50#include <sys/stat.h> 51#include "xar.h" 52#include "filetree.h" 53 54struct errctx { 55 const char *str; 56 int saved_errno; 57 xar_file_t file; 58 void *usrctx; 59 xar_t x; 60}; 61 62struct __xar_t { 63 xar_prop_t props; 64 xar_attr_t attrs; /* archive options, such as rsize */ 65 const char *prefix; 66 const char *ns; 67 const char *filler1; 68 const char *filler2; 69 xar_file_t files; /* file forest */ 70 const char *filename; /* name of the archive we are operating on */ 71 char *dirname; /* directory of the archive, used in creation */ 72 int fd; /* open file descriptor for the archive */ 73 int heap_fd; /* fd for tmp heap archive, used in creation */ 74 off_t heap_offset; /* current offset within the heap */ 75 off_t heap_len; /* current length of the heap */ 76 xar_header_t header; /* header of the xar archive */ 77 void *readbuf; /* buffer for reading/writing compressed toc */ 78 size_t readbuf_len; /* length of readbuf */ 79 size_t offset; /* offset into readbuf for keeping track 80 * between callbacks. */ 81 size_t toc_count; /* current bytes read of the toc */ 82 z_stream zs; /* gz state for compressing/decompressing toc */ 83 char *path_prefix; /* used for distinguishing absolute paths */ 84 err_handler ercallback; /* callback for errors/warnings */ 85 struct errctx errctx; /* error callback context */ 86 xar_subdoc_t subdocs; /* linked list of subdocs */ 87 xar_signature_t signatures; /* linked list of signatures */ 88 uint64_t last_fileid; /* unique fileid's in the archive */ 89 xmlHashTablePtr ino_hash; /* Hash for looking up hardlinked files (add)*/ 90 xmlHashTablePtr link_hash; /* Hash for looking up hardlinked files (extract)*/ 91 xmlHashTablePtr csum_hash; /* Hash for looking up checksums of files */ 92#ifdef __APPLE__ 93 CCDigestRef toc_ctx; 94 unsigned int toc_ctx_length; 95#else 96 EVP_MD_CTX toc_ctx; 97#endif // !__APPLE__ 98 int docksum; 99 int skipwarn; 100 struct stat sbcache; 101}; 102 103#define XAR(x) ((struct __xar_t *)(x)) 104 105#endif /* _XAR_ARCHIVE_H_ */ 106