/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* $OpenBSD: tar.h,v 1.3 1997/02/09 23:58:37 millert Exp $ */ /* * Header file for public domain tar (tape archive) program. * * @(#)tar.h 1.20 86/10/29 Public Domain. * * Created 25 August 1985 by John Gilmore, ihnp4!hoptoad!gnu. * */ /* * Kludge for handling systems that can't cope with multiple * external definitions of a variable. In ONE routine (tar.c), * we #define TAR_EXTERN to null; here, we set it to "extern" if * it is not already set. */ #ifndef TAR_EXTERN #define TAR_EXTERN extern #endif /* * Header block on tape. * * I'm going to use traditional DP naming conventions here. * A "block" is a big chunk of stuff that we do I/O on. * A "record" is a piece of info that we care about. * Typically many "record"s fit into a "block". */ #define RECORDSIZE 512 #define NAMSIZ 100 #define TUNMLEN 32 #define TGNMLEN 32 union record { char charptr[RECORDSIZE]; struct header { char name[NAMSIZ]; char mode[8]; char uid[8]; char gid[8]; char size[12]; char mtime[12]; char chksum[8]; char linkflag; char linkname[NAMSIZ]; char magic[8]; char uname[TUNMLEN]; char gname[TGNMLEN]; char devmajor[8]; char devminor[8]; } header; }; /* The checksum field is filled with this while the checksum is computed. */ #define CHKBLANKS " " /* 8 blanks, no null */ /* The magic field is filled with this if uname and gname are valid. */ #define TMAGIC "ustar " /* 7 chars and a null */ /* The linkflag defines the type of file */ #define LF_OLDNORMAL '\0' /* Normal disk file, Unix compat */ #define LF_NORMAL '0' /* Normal disk file */ #define LF_LINK '1' /* Link to previously dumped file */ #define LF_SYMLINK '2' /* Symbolic link */ #define LF_CHR '3' /* Character special file */ #define LF_BLK '4' /* Block special file */ #define LF_DIR '5' /* Directory */ #define LF_FIFO '6' /* FIFO special file */ #define LF_CONTIG '7' /* Contiguous file */ /* Further link types may be defined later. */ /* * Exit codes from the "tar" program */ #define EX_SUCCESS 0 /* success! */ #define EX_ARGSBAD 1 /* invalid args */ #define EX_BADFILE 2 /* invalid filename */ #define EX_BADARCH 3 /* bad archive */ #define EX_SYSTEM 4 /* system gave unexpected error */ /* * Global variables */ TAR_EXTERN union record *ar_block; /* Start of block of archive */ TAR_EXTERN union record *ar_record; /* Current record of archive */ TAR_EXTERN union record *ar_last; /* Last+1 record of archive block */ TAR_EXTERN char ar_reading; /* 0 writing, !0 reading archive */ TAR_EXTERN int blocking; /* Size of each block, in records */ TAR_EXTERN int blocksize; /* Size of each block, in bytes */ TAR_EXTERN char *ar_file; /* File containing archive */ TAR_EXTERN char *name_file; /* File containing names to work on */ TAR_EXTERN char *tar; /* Name of this program */ /* * Flags from the command line */ TAR_EXTERN char f_reblock; /* -B */ TAR_EXTERN char f_create; /* -c */ TAR_EXTERN char f_debug; /* -d */ TAR_EXTERN char f_sayblock; /* -D */ TAR_EXTERN char f_follow_links; /* -h */ TAR_EXTERN char f_ignorez; /* -i */ TAR_EXTERN char f_keep; /* -k */ TAR_EXTERN char f_modified; /* -m */ TAR_EXTERN char f_oldarch; /* -o */ TAR_EXTERN char f_use_protection; /* -p */ TAR_EXTERN char f_sorted_names; /* -s */ TAR_EXTERN char f_list; /* -t */ TAR_EXTERN char f_namefile; /* -T */ TAR_EXTERN char f_verbose; /* -v */ TAR_EXTERN char f_extract; /* -x */ TAR_EXTERN char f_compress; /* -z */ /* * We now default to Unix Standard format rather than 4.2BSD tar format. * The code can actually produce all three: * f_standard ANSI standard * f_oldarch V7 * neither 4.2BSD * but we don't bother, since 4.2BSD can read ANSI standard format anyway. * The only advantage to the "neither" option is that we can cmp(1) our * output to the output of 4.2BSD tar, for debugging. */ #define f_standard (!f_oldarch) /* * Structure for keeping track of filenames and lists thereof. */ struct name { struct name *next; short length; char found; char name[NAMSIZ+1]; }; TAR_EXTERN struct name *namelist; /* Points to first name in list */ TAR_EXTERN struct name *namelast; /* Points to last name in list */ TAR_EXTERN int archive; /* File descriptor for archive file */ TAR_EXTERN int errors; /* # of files in error */ /* * * Due to the next struct declaration, each routine that includes * "tar.h" must also include <sys/types.h>. I tried to make it automatic, * but System V has no defines in <sys/types.h>, so there is no way of * knowing when it has been included. In addition, it cannot be included * twice, but must be included exactly once. Argghh! * * Thanks, typedef. Thanks, USG. */ struct link { struct link *next; dev_t dev; ino_t ino; short linkcount; char name[NAMSIZ+1]; }; TAR_EXTERN struct link *linklist; /* Points to first link in list */ /* * Error recovery stuff */ TAR_EXTERN char read_error_flag; /* * Declarations of functions available to the world. */ /*LINTLIBRARY*/ union record *findrec(); void userec(); union record *endofrecs(); void anno(); #define annorec(stream, msg) anno(stream, msg, 0) /* Cur rec */ #define annofile(stream, msg) anno(stream, msg, 1) /* Saved rec */