1579 lines
33 KiB
C
1579 lines
33 KiB
C
/* $NetBSD: options.c,v 1.39 2002/02/02 12:34:39 lukem Exp $ */
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/*-
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* Copyright (c) 1992 Keith Muller.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Keith Muller of the University of California, San Diego.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)options.c 8.2 (Berkeley) 4/18/94";
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#else
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__RCSID("$NetBSD: options.c,v 1.39 2002/02/02 12:34:39 lukem Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/mtio.h>
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#include <sys/param.h>
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#include <ctype.h>
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#include <getopt.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "pax.h"
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#include "options.h"
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#include "cpio.h"
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#include "tar.h"
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#include "extern.h"
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#ifndef SMALL
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#include "mtree.h"
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#endif /* SMALL */
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/*
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* Routines which handle command line options
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*/
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int cpio_mode; /* set if we are in cpio mode */
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static int nopids; /* tar mode: suppress "pids" for -p option */
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static char *flgch = FLGCH; /* list of all possible flags (pax) */
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static OPLIST *ophead = NULL; /* head for format specific options -x */
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static OPLIST *optail = NULL; /* option tail */
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static char *firstminusC; /* first -C argument encountered. */
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static int no_op(void);
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static void printflg(unsigned int);
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static int c_frmt(const void *, const void *);
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static off_t str_offt(char *);
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static void pax_options(int, char **);
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static void pax_usage(void);
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static void tar_options(int, char **);
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static void tar_usage(void);
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static void cpio_options(int, char **);
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static void cpio_usage(void);
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static void checkpositionalminusC(char ***, int (*)(char *, int));
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#define GZIP_CMD "gzip" /* command to run as gzip */
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#define COMPRESS_CMD "compress" /* command to run as compress */
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/*
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* Format specific routine table - MUST BE IN SORTED ORDER BY NAME
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* (see pax.h for description of each function)
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*
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* name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read,
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* read, end_read, st_write, write, end_write, trail,
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* rd_data, wr_data, options
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*/
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FSUB fsub[] = {
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/* 0: OLD BINARY CPIO */
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{ "bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd,
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bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, NULL,
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cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt },
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/* 1: OLD OCTAL CHARACTER CPIO */
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{ "cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd,
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cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, NULL,
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cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt },
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/* 2: SVR4 HEX CPIO */
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{ "sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd,
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vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, NULL,
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cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt },
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/* 3: SVR4 HEX CPIO WITH CRC */
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{ "sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd,
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vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, NULL,
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cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt },
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/* 4: OLD TAR */
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{ "tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op,
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tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, tar_trail,
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NULL, rd_wrfile, wr_rdfile, tar_opt },
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/* 5: POSIX USTAR */
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{ "ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd,
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ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, tar_trail,
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NULL, rd_wrfile, wr_rdfile, bad_opt }
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};
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#define F_BCPIO 0 /* old binary cpio format */
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#define F_CPIO 1 /* old octal character cpio format */
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#define F_SV4CPIO 2 /* SVR4 hex cpio format */
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#define F_SV4CRC 3 /* SVR4 hex with crc cpio format */
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#define F_TAR 4 /* old V7 UNIX tar format */
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#define F_USTAR 5 /* ustar format */
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#define DEFLT F_USTAR /* default write format from list above */
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/*
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* ford is the archive search order used by get_arc() to determine what kind
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* of archive we are dealing with. This helps to properly id archive formats
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* some formats may be subsets of others....
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*/
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int ford[] = {F_USTAR, F_TAR, F_SV4CRC, F_SV4CPIO, F_CPIO, F_BCPIO, -1};
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/*
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* options()
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* figure out if we are pax, tar or cpio. Call the appropriate options
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* parser
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*/
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void
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options(int argc, char **argv)
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{
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/*
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* Are we acting like pax, tar or cpio (based on argv[0])
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*/
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if ((argv0 = strrchr(argv[0], '/')) != NULL)
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argv0++;
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else
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argv0 = argv[0];
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if (strcmp(NM_TAR, argv0) == 0)
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tar_options(argc, argv);
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else if (strcmp(NM_CPIO, argv0) == 0)
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cpio_options(argc, argv);
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else {
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argv0 = NM_PAX;
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pax_options(argc, argv);
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}
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}
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/*
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* pax_options()
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* look at the user specified flags. set globals as required and check if
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* the user specified a legal set of flags. If not, complain and exit
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*/
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static void
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pax_options(int argc, char **argv)
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{
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int c;
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int i;
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unsigned int flg = 0;
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unsigned int bflg = 0;
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char *pt;
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FSUB tmp;
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/*
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* process option flags
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*/
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while ((c = getopt(argc, argv,
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"ab:cdf:iklno:p:rs:tuvwx:zAB:DE:G:HLMN:OPT:U:XYZ")) != -1) {
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switch (c) {
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case 'a':
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/*
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* append
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*/
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flg |= AF;
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break;
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case 'b':
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/*
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* specify blocksize
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*/
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flg |= BF;
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if ((wrblksz = (int)str_offt(optarg)) <= 0) {
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tty_warn(1, "Invalid block size %s", optarg);
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pax_usage();
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}
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break;
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case 'c':
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/*
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* inverse match on patterns
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*/
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cflag = 1;
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flg |= CF;
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break;
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case 'd':
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/*
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* match only dir on extract, not the subtree at dir
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*/
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dflag = 1;
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flg |= DF;
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break;
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case 'f':
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/*
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* filename where the archive is stored
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*/
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arcname = optarg;
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flg |= FF;
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break;
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case 'i':
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/*
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* interactive file rename
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*/
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iflag = 1;
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flg |= IF;
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break;
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case 'k':
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/*
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* do not clobber files that exist
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*/
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kflag = 1;
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flg |= KF;
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break;
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case 'l':
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/*
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* try to link src to dest with copy (-rw)
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*/
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lflag = 1;
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flg |= LF;
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break;
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case 'n':
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/*
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* select first match for a pattern only
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*/
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nflag = 1;
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flg |= NF;
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break;
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case 'o':
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/*
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* pass format specific options
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*/
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flg |= OF;
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if (opt_add(optarg) < 0)
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pax_usage();
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break;
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case 'p':
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/*
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* specify file characteristic options
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*/
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for (pt = optarg; *pt != '\0'; ++pt) {
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switch(*pt) {
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case 'a':
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/*
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* do not preserve access time
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*/
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patime = 0;
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break;
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case 'e':
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/*
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* preserve user id, group id, file
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* mode, access/modification times
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* and file flags.
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*/
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pids = 1;
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pmode = 1;
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patime = 1;
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pmtime = 1;
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pfflags = 1;
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break;
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#if 0
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case 'f':
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/*
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* do not preserve file flags
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*/
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pfflags = 0;
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break;
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#endif
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case 'm':
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/*
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* do not preserve modification time
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*/
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pmtime = 0;
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break;
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case 'o':
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/*
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* preserve uid/gid
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*/
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pids = 1;
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break;
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case 'p':
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/*
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* preserve file mode bits
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*/
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pmode = 1;
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break;
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default:
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tty_warn(1,
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"Invalid -p string: %c", *pt);
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pax_usage();
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break;
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}
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}
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flg |= PF;
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break;
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case 'r':
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/*
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* read the archive
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*/
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flg |= RF;
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break;
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case 's':
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/*
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* file name substitution name pattern
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*/
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if (rep_add(optarg) < 0) {
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pax_usage();
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break;
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}
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flg |= SF;
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break;
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case 't':
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/*
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* preserve access time on filesystem nodes we read
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*/
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tflag = 1;
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flg |= TF;
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break;
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case 'u':
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/*
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* ignore those older files
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*/
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uflag = 1;
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flg |= UF;
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break;
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case 'v':
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/*
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* verbose operation mode
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*/
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vflag = 1;
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flg |= VF;
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break;
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case 'w':
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/*
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* write an archive
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*/
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flg |= WF;
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break;
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case 'x':
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/*
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* specify an archive format on write
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*/
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tmp.name = optarg;
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frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
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sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt);
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if (frmt != NULL) {
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flg |= XF;
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break;
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}
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tty_warn(1, "Unknown -x format: %s", optarg);
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(void)fputs("pax: Known -x formats are:", stderr);
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for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
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(void)fprintf(stderr, " %s", fsub[i].name);
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(void)fputs("\n\n", stderr);
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pax_usage();
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break;
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case 'z':
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/*
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* use gzip. Non standard option.
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*/
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zflag = 1;
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gzip_program = GZIP_CMD;
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break;
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case 'A':
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Aflag = 1;
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flg |= CAF;
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break;
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case 'B':
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/*
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* non-standard option on number of bytes written on a
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* single archive volume.
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*/
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if ((wrlimit = str_offt(optarg)) <= 0) {
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tty_warn(1, "Invalid write limit %s", optarg);
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pax_usage();
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}
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if (wrlimit % BLKMULT) {
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tty_warn(1,
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"Write limit is not a %d byte multiple",
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BLKMULT);
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pax_usage();
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}
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flg |= CBF;
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break;
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case 'D':
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/*
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* On extraction check file inode change time before the
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* modification of the file name. Non standard option.
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*/
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Dflag = 1;
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flg |= CDF;
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break;
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case 'E':
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/*
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* non-standard limit on read faults
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* 0 indicates stop after first error, values
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* indicate a limit, "NONE" try forever
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*/
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flg |= CEF;
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if (strcmp(NONE, optarg) == 0)
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maxflt = -1;
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else if ((maxflt = atoi(optarg)) < 0) {
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tty_warn(1,
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"Error count value must be positive");
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pax_usage();
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}
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break;
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case 'G':
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/*
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* non-standard option for selecting files within an
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* archive by group (gid or name)
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*/
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if (grp_add(optarg) < 0) {
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pax_usage();
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break;
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}
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flg |= CGF;
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break;
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case 'H':
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/*
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* follow command line symlinks only
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*/
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Hflag = 1;
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flg |= CHF;
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break;
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case 'L':
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/*
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* follow symlinks
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*/
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Lflag = 1;
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flg |= CLF;
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break;
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#ifdef SMALL
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case 'M':
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case 'N':
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tty_warn(1, "Support for -%c is not compiled in", c);
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exit(1);
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#else /* !SMALL */
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case 'M':
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/*
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* Treat list of filenames on stdin as an
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* mtree(8) specfile. Non standard option.
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*/
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Mflag = 1;
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flg |= CMF;
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break;
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case 'N':
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/*
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* Use alternative directory for user db lookups.
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*/
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if (!setup_getid(optarg)) {
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tty_warn(1,
|
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"Unable to use user and group databases in `%s'",
|
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optarg);
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pax_usage();
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}
|
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break;
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#endif /* !SMALL */
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case 'O':
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/*
|
|
* Force one volume. Non standard option.
|
|
*/
|
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force_one_volume = 1;
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break;
|
|
case 'P':
|
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/*
|
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* do NOT follow symlinks (default)
|
|
*/
|
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Lflag = 0;
|
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flg |= CPF;
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break;
|
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case 'T':
|
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/*
|
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* non-standard option for selecting files within an
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* archive by modification time range (lower,upper)
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*/
|
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if (trng_add(optarg) < 0) {
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pax_usage();
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break;
|
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}
|
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flg |= CTF;
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break;
|
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case 'U':
|
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/*
|
|
* non-standard option for selecting files within an
|
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* archive by user (uid or name)
|
|
*/
|
|
if (usr_add(optarg) < 0) {
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pax_usage();
|
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break;
|
|
}
|
|
flg |= CUF;
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break;
|
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case 'X':
|
|
/*
|
|
* do not pass over mount points in the file system
|
|
*/
|
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Xflag = 1;
|
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flg |= CXF;
|
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break;
|
|
case 'Y':
|
|
/*
|
|
* On extraction check file inode change time after the
|
|
* modification of the file name. Non standard option.
|
|
*/
|
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Yflag = 1;
|
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flg |= CYF;
|
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break;
|
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case 'Z':
|
|
/*
|
|
* On extraction check modification time after the
|
|
* modification of the file name. Non standard option.
|
|
*/
|
|
Zflag = 1;
|
|
flg |= CZF;
|
|
break;
|
|
case '?':
|
|
default:
|
|
pax_usage();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* figure out the operation mode of pax read,write,extract,copy,append
|
|
* or list. check that we have not been given a bogus set of flags
|
|
* for the operation mode.
|
|
*/
|
|
if (ISLIST(flg)) {
|
|
act = LIST;
|
|
bflg = flg & BDLIST;
|
|
} else if (ISEXTRACT(flg)) {
|
|
act = EXTRACT;
|
|
bflg = flg & BDEXTR;
|
|
} else if (ISARCHIVE(flg)) {
|
|
act = ARCHIVE;
|
|
bflg = flg & BDARCH;
|
|
} else if (ISAPPND(flg)) {
|
|
act = APPND;
|
|
bflg = flg & BDARCH;
|
|
} else if (ISCOPY(flg)) {
|
|
act = COPY;
|
|
bflg = flg & BDCOPY;
|
|
} else
|
|
pax_usage();
|
|
if (bflg) {
|
|
printflg(flg);
|
|
pax_usage();
|
|
}
|
|
|
|
/*
|
|
* if we are writing (ARCHIVE) we use the default format if the user
|
|
* did not specify a format. when we write during an APPEND, we will
|
|
* adopt the format of the existing archive if none was supplied.
|
|
*/
|
|
if (!(flg & XF) && (act == ARCHIVE))
|
|
frmt = &(fsub[DEFLT]);
|
|
|
|
/*
|
|
* process the args as they are interpreted by the operation mode
|
|
*/
|
|
switch (act) {
|
|
case LIST:
|
|
case EXTRACT:
|
|
for (; optind < argc; optind++)
|
|
if (pat_add(argv[optind], 0) < 0)
|
|
pax_usage();
|
|
break;
|
|
case COPY:
|
|
if (optind >= argc) {
|
|
tty_warn(0, "Destination directory was not supplied");
|
|
pax_usage();
|
|
}
|
|
--argc;
|
|
dirptr = argv[argc];
|
|
/* FALLTHROUGH */
|
|
case ARCHIVE:
|
|
case APPND:
|
|
for (; optind < argc; optind++)
|
|
if (ftree_add(argv[optind], 0) < 0)
|
|
pax_usage();
|
|
/*
|
|
* no read errors allowed on updates/append operation!
|
|
*/
|
|
maxflt = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* tar_options()
|
|
* look at the user specified flags. set globals as required and check if
|
|
* the user specified a legal set of flags. If not, complain and exit
|
|
*/
|
|
|
|
#define OPT_USE_COMPRESS_PROGRAM 0
|
|
#define OPT_CHECKPOINT 1
|
|
#define OPT_UNLINK 2
|
|
#define OPT_HELP 3
|
|
#define OPT_ATIME_PRESERVE 4
|
|
#define OPT_FAST_READ 5
|
|
#define OPT_IGNORE_FAILED_READ 6
|
|
#define OPT_REMOVE_FILES 7
|
|
#define OPT_NULL 8
|
|
#define OPT_TOTALS 9
|
|
#define OPT_VERSION 10
|
|
#define OPT_EXCLUDE 11
|
|
#define OPT_BLOCK_COMPRESS 12
|
|
#define OPT_NORECURSE 13
|
|
|
|
struct option tar_longopts[] = {
|
|
{ "block-size", required_argument, 0, 'b' },
|
|
{ "create", no_argument, 0, 'c' }, /* F */
|
|
/* -e -- no corresponding long option */
|
|
{ "file", required_argument, 0, 'f' },
|
|
{ "dereference", no_argument, 0, 'h' },
|
|
{ "one-file-system", no_argument, 0, 'l' },
|
|
{ "modification-time", no_argument, 0, 'm' },
|
|
{ "old-archive", no_argument, 0, 'o' },
|
|
{ "portability", no_argument, 0, 'o' },
|
|
{ "same-permissions", no_argument, 0, 'p' },
|
|
{ "preserve-permissions", no_argument, 0, 'p' },
|
|
{ "preserve", no_argument, 0, 'p' },
|
|
{ "append", no_argument, 0, 'r' }, /* F */
|
|
{ "update", no_argument, 0, 'u' }, /* F */
|
|
{ "list", no_argument, 0, 't' }, /* F */
|
|
{ "verbose", no_argument, 0, 'v' },
|
|
{ "interactive", no_argument, 0, 'w' },
|
|
{ "confirmation", no_argument, 0, 'w' },
|
|
{ "extract", no_argument, 0, 'x' }, /* F */
|
|
{ "get", no_argument, 0, 'x' }, /* F */
|
|
{ "gzip", no_argument, 0, 'z' },
|
|
{ "gunzip", no_argument, 0, 'z' },
|
|
{ "read-full-blocks", no_argument, 0, 'B' },
|
|
{ "directory", required_argument, 0, 'C' },
|
|
{ "tape-length", required_argument, 0, 'L' },
|
|
{ "absolute-paths", no_argument, 0, 'P' },
|
|
{ "exclude-from", required_argument, 0, 'X' },
|
|
{ "compress", no_argument, 0, 'Z' },
|
|
{ "uncompress", no_argument, 0, 'Z' },
|
|
{ "atime-preserve", no_argument, 0,
|
|
OPT_ATIME_PRESERVE },
|
|
{ "unlink", no_argument, 0,
|
|
OPT_UNLINK },
|
|
{ "use-compress-program", required_argument, 0,
|
|
OPT_USE_COMPRESS_PROGRAM },
|
|
#if 0 /* Not implemented */
|
|
{ "catenate", no_argument, 0, 'A' }, /* F */
|
|
{ "concatenate", no_argument, 0, 'A' }, /* F */
|
|
{ "diff", no_argument, 0, 'd' }, /* F */
|
|
{ "compare", no_argument, 0, 'd' }, /* F */
|
|
{ "checkpoint", no_argument, 0,
|
|
OPT_CHECKPOINT },
|
|
{ "help", no_argument, 0,
|
|
OPT_HELP },
|
|
{ "info-script", required_argument, 0, 'F' },
|
|
{ "new-volume-script", required_argument, 0, 'F' },
|
|
{ "fast-read", no_argument, 0,
|
|
OPT_FAST_READ },
|
|
{ "incremental", no_argument, 0, 'G' },
|
|
{ "listed-incremental", required_argument, 0, 'g' },
|
|
{ "ignore-zeros", no_argument, 0, 'i' },
|
|
{ "ignore-failed-read", no_argument, 0,
|
|
OPT_IGNORE_FAILED_READ },
|
|
{ "keep-old-files", no_argument, 0, 'k' },
|
|
{ "starting-file", no_argument, 0, 'K' },
|
|
{ "multi-volume", no_argument, 0, 'M' },
|
|
{ "after-date", required_argument, 0, 'N' },
|
|
{ "newer", required_argument, 0, 'N' },
|
|
{ "to-stdout", no_argument, 0, 'O' },
|
|
{ "record-number", no_argument, 0, 'R' },
|
|
{ "remove-files", no_argument, 0,
|
|
OPT_REMOVE_FILES },
|
|
{ "same-order", no_argument, 0, 's' },
|
|
{ "preserve-order", no_argument, 0, 's' },
|
|
{ "sparse", no_argument, 0, 'S' },
|
|
{ "files-from", no_argument, 0, 'T' },
|
|
{ "null", no_argument, 0,
|
|
OPT_NULL },
|
|
{ "totals", no_argument, 0,
|
|
OPT_TOTALS },
|
|
{ "volume-name", required_argument, 0, 'V' },
|
|
{ "label", required_argument, 0, 'V' },
|
|
{ "version", no_argument, 0,
|
|
OPT_VERSION },
|
|
{ "verify", no_argument, 0, 'W' },
|
|
{ "exclude", required_argument, 0,
|
|
OPT_EXCLUDE },
|
|
{ "block-compress", no_argument, 0,
|
|
OPT_BLOCK_COMPRESS },
|
|
{ "norecurse", no_argument, 0,
|
|
OPT_NORECURSE },
|
|
#endif
|
|
{ 0, 0, 0, 0 },
|
|
};
|
|
|
|
static void
|
|
tar_options(int argc, char **argv)
|
|
{
|
|
int c;
|
|
int fstdin = 0;
|
|
|
|
/*
|
|
* process option flags
|
|
*/
|
|
while ((c = getoldopt(argc, argv, "b:cef:hlmoprutvwxzBC:LPX:Z014578",
|
|
tar_longopts, NULL))
|
|
!= -1) {
|
|
switch(c) {
|
|
case 'b':
|
|
/*
|
|
* specify blocksize
|
|
*/
|
|
if ((wrblksz = (int)str_offt(optarg)) <= 0) {
|
|
tty_warn(1, "Invalid block size %s", optarg);
|
|
tar_usage();
|
|
}
|
|
break;
|
|
case 'c':
|
|
/*
|
|
* create an archive
|
|
*/
|
|
act = ARCHIVE;
|
|
break;
|
|
case 'C':
|
|
/*
|
|
* chdir here before extracting.
|
|
* do so lazily, in case it's a list
|
|
*/
|
|
firstminusC = optarg;
|
|
break;
|
|
case 'e':
|
|
/*
|
|
* stop after first error
|
|
*/
|
|
maxflt = 0;
|
|
break;
|
|
case 'f':
|
|
/*
|
|
* filename where the archive is stored
|
|
*/
|
|
if ((optarg[0] == '-') && (optarg[1]== '\0')) {
|
|
/*
|
|
* treat a - as stdin
|
|
*/
|
|
fstdin = 1;
|
|
arcname = (char *)0;
|
|
break;
|
|
}
|
|
fstdin = 0;
|
|
arcname = optarg;
|
|
break;
|
|
case 'h':
|
|
/*
|
|
* follow command line symlinks only
|
|
*/
|
|
Hflag = 1;
|
|
break;
|
|
case 'l':
|
|
/*
|
|
* do not pass over mount points in the file system
|
|
*/
|
|
Xflag = 1;
|
|
break;
|
|
case 'm':
|
|
/*
|
|
* do not preserve modification time
|
|
*/
|
|
pmtime = 0;
|
|
break;
|
|
case 'o':
|
|
/*
|
|
* This option does several things based on whether
|
|
* this is a create or extract operation.
|
|
*/
|
|
if (act == ARCHIVE) {
|
|
/* 4.2BSD: don't add directory entries. */
|
|
if (opt_add("write_opt=nodir") < 0)
|
|
tar_usage();
|
|
|
|
/* GNU tar: write V7 format archives. */
|
|
frmt = &(fsub[F_TAR]);
|
|
} else {
|
|
/* SUS: don't preserve owner/group. */
|
|
pids = 0;
|
|
nopids = 1;
|
|
}
|
|
break;
|
|
case 'p':
|
|
/*
|
|
* preserve user id, group id, file
|
|
* mode, access/modification times
|
|
*/
|
|
if (!nopids)
|
|
pids = 1;
|
|
pmode = 1;
|
|
patime = 1;
|
|
pmtime = 1;
|
|
break;
|
|
case 'r':
|
|
case 'u':
|
|
/*
|
|
* append to the archive
|
|
*/
|
|
act = APPND;
|
|
break;
|
|
case 't':
|
|
/*
|
|
* list contents of the tape
|
|
*/
|
|
act = LIST;
|
|
break;
|
|
case 'v':
|
|
/*
|
|
* verbose operation mode
|
|
*/
|
|
vflag = 1;
|
|
break;
|
|
case 'w':
|
|
/*
|
|
* interactive file rename
|
|
*/
|
|
iflag = 1;
|
|
break;
|
|
case 'x':
|
|
/*
|
|
* write an archive
|
|
*/
|
|
act = EXTRACT;
|
|
break;
|
|
case 'z':
|
|
/*
|
|
* use gzip. Non standard option.
|
|
*/
|
|
zflag = 1;
|
|
gzip_program = GZIP_CMD;
|
|
break;
|
|
case 'B':
|
|
/*
|
|
* Nothing to do here, this is pax default
|
|
*/
|
|
break;
|
|
case 'L':
|
|
/*
|
|
* follow symlinks
|
|
*/
|
|
Lflag = 1;
|
|
break;
|
|
case 'P':
|
|
Aflag = 1;
|
|
break;
|
|
case 'X':
|
|
/*
|
|
* GNU tar compat: exclude the files listed in optarg
|
|
*/
|
|
if (tar_gnutar_X_compat(optarg) != 0)
|
|
tar_usage();
|
|
break;
|
|
case 'Z':
|
|
/*
|
|
* use compress.
|
|
*/
|
|
zflag = 1;
|
|
gzip_program = COMPRESS_CMD;
|
|
break;
|
|
case '0':
|
|
arcname = DEV_0;
|
|
break;
|
|
case '1':
|
|
arcname = DEV_1;
|
|
break;
|
|
case '4':
|
|
arcname = DEV_4;
|
|
break;
|
|
case '5':
|
|
arcname = DEV_5;
|
|
break;
|
|
case '7':
|
|
arcname = DEV_7;
|
|
break;
|
|
case '8':
|
|
arcname = DEV_8;
|
|
break;
|
|
case OPT_ATIME_PRESERVE:
|
|
patime = 1;
|
|
break;
|
|
case OPT_UNLINK:
|
|
/* Just ignore -- we always unlink first. */
|
|
break;
|
|
case OPT_USE_COMPRESS_PROGRAM:
|
|
zflag = 1;
|
|
gzip_program = optarg;
|
|
break;
|
|
default:
|
|
tar_usage();
|
|
break;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (firstminusC && (opt_chdir(firstminusC) < 0))
|
|
tty_warn(1, "can't remember -C directory");
|
|
|
|
/*
|
|
* if we are writing (ARCHIVE) specify tar, otherwise run like pax
|
|
*/
|
|
if (act == ARCHIVE && frmt == NULL)
|
|
frmt = &(fsub[F_USTAR]);
|
|
|
|
/*
|
|
* process the args as they are interpreted by the operation mode
|
|
*/
|
|
switch (act) {
|
|
case LIST:
|
|
default:
|
|
while (*argv != (char *)NULL)
|
|
if (pat_add(*argv++, 0) < 0)
|
|
tar_usage();
|
|
break;
|
|
case EXTRACT:
|
|
checkpositionalminusC(&argv, pat_add);
|
|
break;
|
|
case ARCHIVE:
|
|
case APPND:
|
|
checkpositionalminusC(&argv, ftree_add);
|
|
/*
|
|
* no read errors allowed on updates/append operation!
|
|
*/
|
|
maxflt = 0;
|
|
break;
|
|
}
|
|
if (!fstdin && ((arcname == (char *)NULL) || (*arcname == '\0'))) {
|
|
arcname = getenv("TAPE");
|
|
if ((arcname == (char *)NULL) || (*arcname == '\0'))
|
|
arcname = DEV_8;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* cpio_options()
|
|
* look at the user specified flags. set globals as required and check if
|
|
* the user specified a legal set of flags. If not, complain and exit
|
|
*/
|
|
|
|
static void
|
|
cpio_options(int argc, char **argv)
|
|
{
|
|
FSUB tmp;
|
|
unsigned int flg = 0;
|
|
unsigned int bflg = 0;
|
|
int c, i;
|
|
|
|
cpio_mode = uflag = 1;
|
|
/*
|
|
* process option flags
|
|
*/
|
|
while ((c = getoldopt(argc, argv,
|
|
"ABC:E:H:I:LM:O:R:SVabcdfiklmoprstuv", NULL, NULL)) != -1) {
|
|
switch(c) {
|
|
case 'A':
|
|
/*
|
|
* append to an archive
|
|
*/
|
|
act = APPND;
|
|
flg |= AF;
|
|
break;
|
|
case 'B':
|
|
/*
|
|
* set blocksize to 5120
|
|
*/
|
|
blksz = 5120;
|
|
break;
|
|
case 'C':
|
|
/*
|
|
* specify blocksize
|
|
*/
|
|
if ((blksz = (int)str_offt(optarg)) <= 0) {
|
|
tty_warn(1, "Invalid block size %s", optarg);
|
|
tar_usage();
|
|
}
|
|
break;
|
|
#ifdef notyet
|
|
case 'E':
|
|
arg = optarg;
|
|
break;
|
|
#endif
|
|
case 'H':
|
|
/*
|
|
* specify an archive format on write
|
|
*/
|
|
tmp.name = optarg;
|
|
frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub,
|
|
sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt);
|
|
if (frmt != NULL) {
|
|
flg |= XF;
|
|
break;
|
|
}
|
|
tty_warn(1, "Unknown -H format: %s", optarg);
|
|
(void)fputs("cpio: Known -H formats are:", stderr);
|
|
for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i)
|
|
(void)fprintf(stderr, " %s", fsub[i].name);
|
|
(void)fputs("\n\n", stderr);
|
|
tar_usage();
|
|
break;
|
|
case 'I':
|
|
case 'O':
|
|
/*
|
|
* filename where the archive is stored
|
|
*/
|
|
if ((optarg[0] == '-') && (optarg[1]== '\0')) {
|
|
/*
|
|
* treat a - as stdin
|
|
*/
|
|
arcname = (char *)0;
|
|
break;
|
|
}
|
|
arcname = optarg;
|
|
break;
|
|
case 'L':
|
|
/*
|
|
* follow symlinks
|
|
*/
|
|
Lflag = 1;
|
|
flg |= CLF;
|
|
break;
|
|
#ifdef notyet
|
|
case 'M':
|
|
arg = optarg;
|
|
break;
|
|
case 'R':
|
|
arg = optarg;
|
|
break;
|
|
#endif
|
|
case 'S':
|
|
cpio_swp_head = 1;
|
|
break;
|
|
#ifdef notyet
|
|
case 'V':
|
|
break;
|
|
#endif
|
|
case 'a':
|
|
/*
|
|
* preserve access time on filesystem nodes we read
|
|
*/
|
|
tflag = 1;
|
|
flg |= TF;
|
|
break;
|
|
#ifdef notyet
|
|
case 'b':
|
|
break;
|
|
#endif
|
|
case 'c':
|
|
frmt = &fsub[F_SV4CPIO];
|
|
break;
|
|
case 'd':
|
|
/*
|
|
* pax does this by default ..
|
|
*/
|
|
flg |= RF;
|
|
break;
|
|
case 'f':
|
|
/*
|
|
* inverse match on patterns
|
|
*/
|
|
cflag = 1;
|
|
flg |= CF;
|
|
break;
|
|
case 'i':
|
|
/*
|
|
* read the archive
|
|
*/
|
|
flg |= RF;
|
|
break;
|
|
#ifdef notyet
|
|
case 'k':
|
|
break;
|
|
#endif
|
|
case 'l':
|
|
/*
|
|
* try to link src to dest with copy (-rw)
|
|
*/
|
|
lflag = 1;
|
|
flg |= LF;
|
|
break;
|
|
case 'm':
|
|
/*
|
|
* preserve mtime
|
|
*/
|
|
flg |= PF;
|
|
pmtime = 1;
|
|
break;
|
|
case 'o':
|
|
/*
|
|
* write an archive
|
|
*/
|
|
flg |= WF;
|
|
break;
|
|
case 'p':
|
|
/*
|
|
* cpio -p is like pax -rw
|
|
*/
|
|
flg |= RF | WF;
|
|
break;
|
|
case 'r':
|
|
/*
|
|
* interactive file rename
|
|
*/
|
|
iflag = 1;
|
|
flg |= IF;
|
|
break;
|
|
#ifdef notyet
|
|
case 's':
|
|
break;
|
|
#endif
|
|
case 't':
|
|
act = LIST;
|
|
break;
|
|
case 'u':
|
|
/*
|
|
* don't ignore those older files
|
|
*/
|
|
uflag = 0;
|
|
flg |= UF;
|
|
break;
|
|
case 'v':
|
|
/*
|
|
* verbose operation mode
|
|
*/
|
|
vflag = 1;
|
|
flg |= VF;
|
|
break;
|
|
default:
|
|
cpio_usage();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* figure out the operation mode of cpio. check that we have not been
|
|
* given a bogus set of flags for the operation mode.
|
|
*/
|
|
if (ISLIST(flg)) {
|
|
act = LIST;
|
|
bflg = flg & BDLIST;
|
|
} else if (ISEXTRACT(flg)) {
|
|
act = EXTRACT;
|
|
bflg = flg & BDEXTR;
|
|
} else if (ISARCHIVE(flg)) {
|
|
act = ARCHIVE;
|
|
bflg = flg & BDARCH;
|
|
} else if (ISAPPND(flg)) {
|
|
act = APPND;
|
|
bflg = flg & BDARCH;
|
|
} else if (ISCOPY(flg)) {
|
|
act = COPY;
|
|
bflg = flg & BDCOPY;
|
|
} else
|
|
cpio_usage();
|
|
if (bflg) {
|
|
cpio_usage();
|
|
}
|
|
|
|
/*
|
|
* if we are writing (ARCHIVE) we use the default format if the user
|
|
* did not specify a format. when we write during an APPEND, we will
|
|
* adopt the format of the existing archive if none was supplied.
|
|
*/
|
|
if (!(flg & XF) && (act == ARCHIVE))
|
|
frmt = &(fsub[F_BCPIO]);
|
|
|
|
/*
|
|
* process the args as they are interpreted by the operation mode
|
|
*/
|
|
switch (act) {
|
|
case LIST:
|
|
case EXTRACT:
|
|
for (; optind < argc; optind++)
|
|
if (pat_add(argv[optind], 0) < 0)
|
|
cpio_usage();
|
|
break;
|
|
case COPY:
|
|
if (optind >= argc) {
|
|
tty_warn(0, "Destination directory was not supplied");
|
|
cpio_usage();
|
|
}
|
|
--argc;
|
|
dirptr = argv[argc];
|
|
/* FALLTHROUGH */
|
|
case ARCHIVE:
|
|
case APPND:
|
|
for (; optind < argc; optind++)
|
|
if (ftree_add(argv[optind], 0) < 0)
|
|
cpio_usage();
|
|
/*
|
|
* no read errors allowed on updates/append operation!
|
|
*/
|
|
maxflt = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* printflg()
|
|
* print out those invalid flag sets found to the user
|
|
*/
|
|
|
|
static void
|
|
printflg(unsigned int flg)
|
|
{
|
|
int nxt;
|
|
int pos = 0;
|
|
|
|
(void)fprintf(stderr,"%s: Invalid combination of options:", argv0);
|
|
while ((nxt = ffs(flg)) != 0) {
|
|
flg = flg >> nxt;
|
|
pos += nxt;
|
|
(void)fprintf(stderr, " -%c", flgch[pos-1]);
|
|
}
|
|
(void)putc('\n', stderr);
|
|
}
|
|
|
|
/*
|
|
* c_frmt()
|
|
* comparison routine used by bsearch to find the format specified
|
|
* by the user
|
|
*/
|
|
|
|
static int
|
|
c_frmt(const void *a, const void *b)
|
|
{
|
|
return(strcmp(((FSUB *)a)->name, ((FSUB *)b)->name));
|
|
}
|
|
|
|
/*
|
|
* opt_next()
|
|
* called by format specific options routines to get each format specific
|
|
* flag and value specified with -o
|
|
* Return:
|
|
* pointer to next OPLIST entry or NULL (end of list).
|
|
*/
|
|
|
|
OPLIST *
|
|
opt_next(void)
|
|
{
|
|
OPLIST *opt;
|
|
|
|
if ((opt = ophead) != NULL)
|
|
ophead = ophead->fow;
|
|
return(opt);
|
|
}
|
|
|
|
/*
|
|
* bad_opt()
|
|
* generic routine used to complain about a format specific options
|
|
* when the format does not support options.
|
|
*/
|
|
|
|
int
|
|
bad_opt(void)
|
|
{
|
|
OPLIST *opt;
|
|
|
|
if (ophead == NULL)
|
|
return(0);
|
|
/*
|
|
* print all we were given
|
|
*/
|
|
tty_warn(1,"These format options are not supported");
|
|
while ((opt = opt_next()) != NULL)
|
|
(void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value);
|
|
pax_usage();
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* opt_add()
|
|
* breaks the value supplied to -o into a option name and value. options
|
|
* are given to -o in the form -o name-value,name=value
|
|
* multiple -o may be specified.
|
|
* Return:
|
|
* 0 if format in name=value format, -1 if -o is passed junk
|
|
*/
|
|
|
|
int
|
|
opt_add(const char *str)
|
|
{
|
|
OPLIST *opt;
|
|
char *frpt;
|
|
char *pt;
|
|
char *endpt;
|
|
|
|
if ((str == NULL) || (*str == '\0')) {
|
|
tty_warn(0, "Invalid option name");
|
|
return(-1);
|
|
}
|
|
frpt = endpt = strdup(str);
|
|
|
|
/*
|
|
* break into name and values pieces and stuff each one into a
|
|
* OPLIST structure. When we know the format, the format specific
|
|
* option function will go through this list
|
|
*/
|
|
while ((frpt != NULL) && (*frpt != '\0')) {
|
|
if ((endpt = strchr(frpt, ',')) != NULL)
|
|
*endpt = '\0';
|
|
if ((pt = strchr(frpt, '=')) == NULL) {
|
|
tty_warn(0, "Invalid options format");
|
|
return(-1);
|
|
}
|
|
if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) {
|
|
tty_warn(0, "Unable to allocate space for option list");
|
|
return(-1);
|
|
}
|
|
*pt++ = '\0';
|
|
opt->name = frpt;
|
|
opt->value = pt;
|
|
opt->fow = NULL;
|
|
if (endpt != NULL)
|
|
frpt = endpt + 1;
|
|
else
|
|
frpt = NULL;
|
|
if (ophead == NULL) {
|
|
optail = ophead = opt;
|
|
continue;
|
|
}
|
|
optail->fow = opt;
|
|
optail = opt;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* str_offt()
|
|
* Convert an expression of the following forms to an off_t > 0.
|
|
* 1) A positive decimal number.
|
|
* 2) A positive decimal number followed by a b (mult by 512).
|
|
* 3) A positive decimal number followed by a k (mult by 1024).
|
|
* 4) A positive decimal number followed by a m (mult by 512).
|
|
* 5) A positive decimal number followed by a w (mult by sizeof int)
|
|
* 6) Two or more positive decimal numbers (with/without k,b or w).
|
|
* separated by x (also * for backwards compatibility), specifying
|
|
* the product of the indicated values.
|
|
* Return:
|
|
* 0 for an error, a positive value o.w.
|
|
*/
|
|
|
|
static off_t
|
|
str_offt(char *val)
|
|
{
|
|
char *expr;
|
|
off_t num, t;
|
|
|
|
num = STRTOOFFT(val, &expr, 0);
|
|
if ((num == OFFT_MAX) || (num <= 0) || (expr == val))
|
|
return(0);
|
|
|
|
switch(*expr) {
|
|
case 'b':
|
|
t = num;
|
|
num *= 512;
|
|
if (t > num)
|
|
return(0);
|
|
++expr;
|
|
break;
|
|
case 'k':
|
|
t = num;
|
|
num *= 1024;
|
|
if (t > num)
|
|
return(0);
|
|
++expr;
|
|
break;
|
|
case 'm':
|
|
t = num;
|
|
num *= 1048576;
|
|
if (t > num)
|
|
return(0);
|
|
++expr;
|
|
break;
|
|
case 'w':
|
|
t = num;
|
|
num *= sizeof(int);
|
|
if (t > num)
|
|
return(0);
|
|
++expr;
|
|
break;
|
|
}
|
|
|
|
switch(*expr) {
|
|
case '\0':
|
|
break;
|
|
case '*':
|
|
case 'x':
|
|
t = num;
|
|
num *= str_offt(expr + 1);
|
|
if (t > num)
|
|
return(0);
|
|
break;
|
|
default:
|
|
return(0);
|
|
}
|
|
return(num);
|
|
}
|
|
|
|
/*
|
|
* no_op()
|
|
* for those option functions where the archive format has nothing to do.
|
|
* Return:
|
|
* 0
|
|
*/
|
|
|
|
static int
|
|
no_op(void)
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* pax_usage()
|
|
* print the usage summary to the user
|
|
*/
|
|
|
|
void
|
|
pax_usage(void)
|
|
{
|
|
fprintf(stderr,
|
|
"usage: pax [-cdnvzO] [-E limit] [-f archive] [-N dbdir] [-s replstr] ...\n"
|
|
" [-U user] ... [-G group] ... [-T [from_date][,to_date]] ...\n"
|
|
" [pattern ...]\n");
|
|
fprintf(stderr,
|
|
" pax -r [-cdiknuvzADOYZ] [-E limit] [-f archive] [-N dbdir]\n"
|
|
" [-o options] ... [-p string] ... [-s replstr] ... [-U user] ...\n"
|
|
" [-G group] ... [-T [from_date][,to_date]] ... [pattern ...]\n");
|
|
fprintf(stderr,
|
|
" pax -w [-dituvzAHLMOPX] [-b blocksize] [[-a] [-f archive]] [-x format]\n"
|
|
" [-B bytes] [-N dbdir] [-o options] ... [-s replstr] ...\n"
|
|
" [-U user] ... [-G group] ...\n"
|
|
" [-T [from_date][,to_date][/[c][m]]] ... [file ...]\n");
|
|
fprintf(stderr,
|
|
" pax -r -w [-diklntuvzADHLMOPXYZ] [-N dbdir] [-p string] ...\n"
|
|
" [-s replstr] ... [-U user] ... [-G group] ...\n"
|
|
" [-T [from_date][,to_date][/[c][m]]] ... [file ...] directory\n");
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* tar_usage()
|
|
* print the usage summary to the user
|
|
*/
|
|
|
|
void
|
|
tar_usage(void)
|
|
{
|
|
(void)fputs("usage: tar -{txru}[cevfbhlmopwBLPX014578] [tapefile] ",
|
|
stderr);
|
|
(void)fputs("[blocksize] [exclude-file] file1 file2...\n", stderr);
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* cpio_usage()
|
|
* print the usage summary to the user
|
|
*/
|
|
|
|
void
|
|
cpio_usage(void)
|
|
{
|
|
|
|
#if 1
|
|
(void)fputs(
|
|
"usage: cpio -i [-BcdfmrStuv] [ -C blksize ] [ -H header ]\n",
|
|
stderr);
|
|
(void)fputs(" [ -I file ] [ pattern ... ]\n", stderr);
|
|
(void)fputs("usage: cpio -o [-aABcLv] [ -C bufsize ] [ -H header ]\n",
|
|
stderr);
|
|
(void)fputs(" [ -O file ]\n", stderr);
|
|
(void)fputs("usage: cpio -p [ adlLmuv ] directory\n", stderr);
|
|
#else
|
|
/* no E, M, R, V, b, k or s */
|
|
(void)fputs("usage: cpio -i [-bBcdfkmrsStuvV] [ -C bufsize ]\n", stderr);
|
|
(void)fputs(" [ -E file ] [ -H header ] [ -I file [ -M message ] ]\n",
|
|
stderr);
|
|
(void)fputs(" [ -R id ] [ pattern ... ]\n", stderr);
|
|
(void)fputs("usage: cpio -o [-aABcLvV] [ -C bufsize ] [ -H header ]\n",
|
|
stderr);
|
|
(void)fputs(" [ -O file [ -M message ] ]\n", stderr);
|
|
(void)fputs("usage: cpio -p [ adlLmuvV ] [ -R id ] directory\n", stderr);
|
|
#endif
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* opt_chdir
|
|
* call ftree_add or pat_add, depending on archive type.
|
|
*
|
|
* Returns: -1 for listing, else what ftree_add or pat_add returned.
|
|
*/
|
|
|
|
int
|
|
opt_chdir(char *name)
|
|
{
|
|
switch (act) {
|
|
default:
|
|
return (-1);
|
|
break;
|
|
case ARCHIVE:
|
|
case APPND:
|
|
return (ftree_add(name, 1));
|
|
break;
|
|
case EXTRACT:
|
|
return (pat_add(name, 1));
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* checkpositionalminusC(argvp, addfunc)
|
|
*/
|
|
|
|
void
|
|
checkpositionalminusC(char ***argvp, int (*addfunc)(char *, int))
|
|
{
|
|
while (**argvp != (char *)NULL) {
|
|
if (!strcmp(**argvp, "-C")) {
|
|
/* XXX should be allow for positional -C/dir, too? */
|
|
if ((*addfunc)(*++*argvp, 1) < 0) {
|
|
tar_usage();
|
|
}
|
|
++*argvp;
|
|
continue;
|
|
}
|
|
if ((*addfunc)(*(*argvp)++, 0) < 0)
|
|
tar_usage();
|
|
}
|
|
}
|