GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/restore/main.c Lines: 0 164 0.0 %
Date: 2017-11-13 Branches: 0 108 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: main.c,v 1.26 2017/01/21 08:31:44 krw Exp $	*/
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/*	$NetBSD: main.c,v 1.13 1997/07/01 05:37:51 lukem Exp $	*/
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/*
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 * Copyright (c) 1983, 1993
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 *	The Regents of the University of California.  All rights reserved.
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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. 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/stat.h>
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#include <sys/time.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ufs/dinode.h>
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#include <protocols/dumprestore.h>
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#include <err.h>
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#include <paths.h>
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#include <signal.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 <limits.h>
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#include "restore.h"
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#include "extern.h"
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int	bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
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int	hflag = 1, mflag = 1, Nflag = 0;
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char	command = '\0';
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long	dumpnum = 1;
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long	volno = 0;
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long	ntrec;
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char	*dumpmap;
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char	*usedinomap;
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ino_t	maxino;
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time_t	dumptime;
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time_t	dumpdate;
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FILE	*terminal;
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char	*tmpdir;
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static void obsolete(int *, char **[]);
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static void usage(void);
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int
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main(int argc, char *argv[])
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{
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	int ch;
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	ino_t ino;
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	char *inputdev;
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	char *symtbl = "./restoresymtable";
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	char *p, name[PATH_MAX];
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	/* Temp files should *not* be readable.  We set permissions later. */
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	(void)umask(077);
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	if (argc < 2)
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		usage();
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	if ((inputdev = getenv("TAPE")) == NULL || *inputdev == '\0')
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		inputdev = _PATH_DEFTAPE;
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	if ((tmpdir = getenv("TMPDIR")) == NULL || *tmpdir == '\0')
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		tmpdir = _PATH_TMP;
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	if ((tmpdir = strdup(tmpdir)) == NULL)
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		err(1, NULL);
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	for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--)
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		continue;
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	obsolete(&argc, &argv);
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	while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != -1)
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		switch(ch) {
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		case 'b':
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			/* Change default tape blocksize. */
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			bflag = 1;
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			ntrec = strtol(optarg, &p, 10);
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			if (*p)
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				errx(1, "illegal blocksize -- %s", optarg);
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			if (ntrec <= 0)
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				errx(1, "block size must be greater than 0");
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			break;
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		case 'c':
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			cvtflag = 1;
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			break;
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		case 'd':
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			dflag = 1;
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			break;
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		case 'f':
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			inputdev = optarg;
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			break;
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		case 'h':
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			hflag = 0;
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			break;
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		case 'i':
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		case 'R':
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		case 'r':
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		case 't':
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		case 'x':
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			if (command != '\0')
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				errx(1,
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				    "%c and %c options are mutually exclusive",
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				    ch, command);
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			command = ch;
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			break;
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		case 'm':
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			mflag = 0;
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			break;
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		case 'N':
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			Nflag = 1;
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			break;
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		case 's':
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			/* Dumpnum (skip to) for multifile dump tapes. */
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			dumpnum = strtol(optarg, &p, 10);
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			if (*p)
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				errx(1, "illegal dump number -- %s", optarg);
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			if (dumpnum <= 0)
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				errx(1, "dump number must be greater than 0");
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			break;
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		case 'v':
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			vflag = 1;
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			break;
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		case 'y':
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			yflag = 1;
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			break;
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		default:
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			usage();
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		}
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	argc -= optind;
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	argv += optind;
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	if (command == '\0')
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		errx(1, "none of i, R, r, t or x options specified");
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	if (signal(SIGINT, onintr) == SIG_IGN)
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		(void)signal(SIGINT, SIG_IGN);
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	if (signal(SIGTERM, onintr) == SIG_IGN)
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		(void)signal(SIGTERM, SIG_IGN);
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	setvbuf(stderr, NULL, _IOLBF, 0);
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	atexit(cleanup);
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	setinput(inputdev);
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	if (argc == 0) {
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		argc = 1;
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		*--argv = ".";
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	}
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	switch (command) {
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	/*
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	 * Interactive mode.
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	 */
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	case 'i':
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		setup();
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		extractdirs(1);
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		initsymtable(NULL);
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		runcmdshell();
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		break;
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	/*
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	 * Incremental restoration of a file system.
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	 */
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	case 'r':
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		setup();
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		if (dumptime > 0) {
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			/*
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			 * This is an incremental dump tape.
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			 */
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			Vprintf(stdout, "Begin incremental restore\n");
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			initsymtable(symtbl);
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			extractdirs(1);
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			removeoldleaves();
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			Vprintf(stdout, "Calculate node updates.\n");
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			treescan(".", ROOTINO, nodeupdates);
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			findunreflinks();
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			removeoldnodes();
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		} else {
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			/*
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			 * This is a level zero dump tape.
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			 */
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			Vprintf(stdout, "Begin level 0 restore\n");
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			initsymtable(NULL);
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			extractdirs(1);
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			Vprintf(stdout, "Calculate extraction list.\n");
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			treescan(".", ROOTINO, nodeupdates);
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		}
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		createleaves(symtbl);
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		createlinks();
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		setdirmodes(FORCE);
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		checkrestore();
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		if (dflag) {
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			Vprintf(stdout, "Verify the directory structure\n");
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			treescan(".", ROOTINO, verifyfile);
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		}
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		dumpsymtable(symtbl, (long)1);
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		break;
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	/*
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	 * Resume an incremental file system restoration.
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	 */
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	case 'R':
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		initsymtable(symtbl);
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		skipmaps();
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		skipdirs();
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		createleaves(symtbl);
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		createlinks();
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		setdirmodes(FORCE);
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		checkrestore();
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		dumpsymtable(symtbl, (long)1);
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		break;
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	/*
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	 * List contents of tape.
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	 */
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	case 't':
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		setup();
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		extractdirs(0);
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		initsymtable(NULL);
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		while (argc--) {
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			canon(*argv++, name, sizeof name);
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			ino = dirlookup(name);
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			if (ino == 0)
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				continue;
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			treescan(name, ino, listfile);
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		}
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		break;
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	/*
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	 * Batch extraction of tape contents.
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	 */
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	case 'x':
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		setup();
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		extractdirs(1);
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		initsymtable(NULL);
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		while (argc--) {
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			canon(*argv++, name, sizeof name);
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			ino = dirlookup(name);
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			if (ino == 0)
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				continue;
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			if (mflag)
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				pathcheck(name);
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			treescan(name, ino, addfile);
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		}
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		createfiles();
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		createlinks();
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		setdirmodes(0);
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		if (dflag)
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			checkrestore();
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		break;
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	}
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	return (0);
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}
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static void
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usage(void)
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{
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	(void)fprintf(stderr, "usage: %s [-chimRrtvxy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", __progname);
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	exit(1);
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}
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/*
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 * obsolete --
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 *	Change set of key letters and ordered arguments into something
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 *	getopt(3) will like.
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 */
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static void
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obsolete(int *argcp, char **argvp[])
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{
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	int argc, flags;
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	char *ap, **argv, *flagsp, **nargv, *p;
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	size_t len;
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	/* Setup. */
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	argv = *argvp;
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	argc = *argcp;
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	/* Return if no arguments or first argument has leading dash. */
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	ap = argv[1];
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	if (argc == 1 || *ap == '-')
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		return;
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	/* Allocate space for new arguments. */
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	if ((*argvp = nargv = calloc(argc + 1, sizeof(char *))) == NULL ||
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	    (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
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		err(1, NULL);
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	*nargv++ = *argv;
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	argv += 2;
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	for (flags = 0; *ap; ++ap) {
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		switch (*ap) {
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		case 'b':
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		case 'f':
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		case 's':
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			if (*argv == NULL) {
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				warnx("option requires an argument -- %c", *ap);
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				usage();
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			}
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			len = strlen(*argv) + 2 + 1;
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			if ((nargv[0] = malloc(len)) == NULL)
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				err(1, NULL);
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			nargv[0][0] = '-';
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			nargv[0][1] = *ap;
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			(void)strlcpy(&nargv[0][2], *argv, len-2);
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			++argv;
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			++nargv;
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			break;
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		default:
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			if (!flags) {
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				*p++ = '-';
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				flags = 1;
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			}
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			*p++ = *ap;
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			break;
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		}
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	}
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	/* Terminate flags. */
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	if (flags) {
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		*p = '\0';
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		*nargv++ = flagsp;
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	} else {
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		free(flagsp);
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	}
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	/* Copy remaining arguments. */
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	while ((*nargv++ = *argv++))
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		continue;
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	/* Update argument count. */
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	*argcp = nargv - *argvp - 1;
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}