This is tar.h in view mode; [Download] [Up]
/* Declarations for tar archives.
Copyright (C) 1988, 1992, 1993 Free Software Foundation
This file is part of GNU Tar.
GNU Tar is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Tar is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Tar; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "testpad.h"
/* major() and minor() macros (among other things) defined here for hpux */
#ifdef hpux
#include <sys/mknod.h>
#endif
/*
* 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
#define SPARSE_EXT_HDR 21
#define SPARSE_IN_HDR 4
struct sparse
{
char offset[12];
char numbytes[12];
};
struct sp_array
{
int offset;
int numbytes;
};
union record
{
char charptr[RECORDSIZE];
struct header
{
char arch_name[NAMSIZ];
char mode[8];
char uid[8];
char gid[8];
char size[12];
char mtime[12];
char chksum[8];
char linkflag;
char arch_linkname[NAMSIZ];
char magic[8];
char uname[TUNMLEN];
char gname[TGNMLEN];
char devmajor[8];
char devminor[8];
/* these following fields were added by JF for gnu */
/* and are NOT standard */
char atime[12];
char ctime[12];
char offset[12];
char longnames[4];
#ifdef NEEDPAD
char pad;
#endif
struct sparse sp[SPARSE_IN_HDR];
char isextended;
char realsize[12]; /* true size of the sparse file */
/* char ending_blanks[12];*//* number of nulls at the
end of the file, if any */
}
header;
struct extended_header
{
struct sparse sp[21];
char isextended;
}
ext_hdr;
};
/* 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. */
/* Note that the standards committee allows only capital A through
capital Z for user-defined expansion. This means that defining something
as, say '8' is a *bad* idea. */
#define LF_DUMPDIR 'D' /* This is a dir entry that contains
the names of files that were in
the dir at the time the dump
was made */
#define LF_LONGLINK 'K' /* Identifies the NEXT file on the tape
as having a long linkname */
#define LF_LONGNAME 'L' /* Identifies the NEXT file on the tape
as having a long name. */
#define LF_MULTIVOL 'M' /* This is the continuation
of a file that began on another
volume */
#define LF_NAMES 'N' /* For storing filenames that didn't
fit in 100 characters */
#define LF_SPARSE 'S' /* This is for sparse files */
#define LF_VOLHDR 'V' /* This file is a tape/volume header */
/* Ignore it on extraction */
/*
* 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 */
#define EX_BADVOL 5 /* Special error code means
Tape volume doesn't match the one
specified on the command line */
/*
* 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 *info_script; /* Script to run at end of each tape change */
TAR_EXTERN char *name_file; /* File containing names to work on */
TAR_EXTERN char filename_terminator; /* \n or \0. */
TAR_EXTERN char *tar; /* Name of this program */
TAR_EXTERN struct sp_array *sparsearray; /* Pointer to the start of the scratch space */
TAR_EXTERN int sp_array_size; /* Initial size of the sparsearray */
TAR_EXTERN int tot_written; /* Total written to output */
TAR_EXTERN struct re_pattern_buffer
*label_pattern; /* compiled regex for extract label */
TAR_EXTERN char **ar_files; /* list of tape drive names */
TAR_EXTERN int n_ar_files; /* number of tape drive names */
TAR_EXTERN int cur_ar_file; /* tape drive currently being used */
TAR_EXTERN int ar_files_len; /* malloced size of ar_files */
TAR_EXTERN char *current_file_name, *current_link_name;
/*
* Flags from the command line
*/
TAR_EXTERN int cmd_mode;
#define CMD_NONE 0
#define CMD_CAT 1 /* -A */
#define CMD_CREATE 2 /* -c */
#define CMD_DIFF 3 /* -d */
#define CMD_APPEND 4 /* -r */
#define CMD_LIST 5 /* -t */
#define CMD_UPDATE 6 /* -u */
#define CMD_EXTRACT 7 /* -x */
#define CMD_DELETE 8 /* -D */
#define CMD_VERSION 9 /* --version */
TAR_EXTERN int f_reblock; /* -B */
#if 0
TAR_EXTERN char f_dironly; /* -D */
#endif
TAR_EXTERN int f_run_script_at_end; /* -F */
TAR_EXTERN int f_gnudump; /* -G */
TAR_EXTERN int f_follow_links; /* -h */
TAR_EXTERN int f_ignorez; /* -i */
TAR_EXTERN int f_keep; /* -k */
TAR_EXTERN int f_startfile; /* -K */
TAR_EXTERN int f_local_filesys; /* -l */
TAR_EXTERN int tape_length; /* -L */
TAR_EXTERN int f_modified; /* -m */
TAR_EXTERN int f_multivol; /* -M */
TAR_EXTERN int f_new_files; /* -N */
TAR_EXTERN int f_oldarch; /* -o */
TAR_EXTERN int f_exstdout; /* -O */
TAR_EXTERN int f_use_protection;/* -p */
TAR_EXTERN int f_absolute_paths;/* -P */
TAR_EXTERN int f_sayblock; /* -R */
TAR_EXTERN int f_sorted_names; /* -s */
TAR_EXTERN int f_sparse_files; /* -S ... JK */
TAR_EXTERN int f_namefile; /* -T */
TAR_EXTERN int f_verbose; /* -v */
TAR_EXTERN char *f_volhdr; /* -V */
TAR_EXTERN int f_confirm; /* -w */
TAR_EXTERN int f_verify; /* -W */
TAR_EXTERN int f_exclude; /* -X */
TAR_EXTERN char *f_compressprog; /* -z and -Z */
TAR_EXTERN int f_do_chown; /* --do-chown */
TAR_EXTERN int f_totals; /* --totals */
TAR_EXTERN int f_remove_files; /* --remove-files */
TAR_EXTERN int f_ignore_failed_read; /* --ignore-failed-read */
TAR_EXTERN int f_checkpoint; /* --checkpoint */
TAR_EXTERN int f_show_omitted_dirs; /* --show-omitted-dirs */
TAR_EXTERN char *f_volno_file; /* --volno-file */
TAR_EXTERN int f_force_local; /* --force-local */
TAR_EXTERN int f_atime_preserve;/* --atime-preserve */
TAR_EXTERN int f_compress_block; /* --compress-block */
/*
* We 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 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; /* cached strlen(name) */
char found; /* A matching file has been found */
char firstch; /* First char is literally matched */
char regexp; /* This name is a regexp, not literal */
char *change_dir; /* JF set with the -C option */
char *dir_contents; /* JF for f_gnudump */
char fake; /* dummy entry */
char name[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 */
TAR_EXTERN char *gnu_dumpfile;
/*
* Error recovery stuff
*/
TAR_EXTERN char read_error_flag;
/*
* Declarations of functions available to the world.
*/
union record *findrec ();
void userec ();
union record *endofrecs ();
void anno ();
#if defined (HAVE_VPRINTF) && __STDC__
void msg (char *,...);
void msg_perror (char *,...);
#else
void msg ();
void msg_perror ();
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.