| Current Path : /usr/src/sbin/restore/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sbin/restore/main.c |
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sbin/restore/main.c 164911 2006-12-05 11:18:51Z dwmalone $");
#include <sys/param.h>
#include <sys/stat.h>
#include <ufs/ufs/dinode.h>
#include <protocols/dumprestore.h>
#include <err.h>
#include <limits.h>
#include <locale.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "restore.h"
#include "extern.h"
int bflag = 0, cvtflag = 0, dflag = 0, Dflag = 0, vflag = 0, yflag = 0;
int hflag = 1, mflag = 1, Nflag = 0;
int uflag = 0;
int pipecmd = 0;
char command = '\0';
long dumpnum = 1;
long volno = 0;
long ntrec;
char *dumpmap;
char *usedinomap;
ino_t maxino;
time_t dumptime;
time_t dumpdate;
FILE *terminal;
static void obsolete(int *, char **[]);
static void usage(void) __dead2;
int
main(int argc, char *argv[])
{
int ch;
ino_t ino;
char *inputdev;
char *symtbl = "./restoresymtable";
char *p, name[MAXPATHLEN];
/* Temp files should *not* be readable. We set permissions later. */
(void) umask(077);
if (argc < 2)
usage();
(void)setlocale(LC_ALL, "");
inputdev = NULL;
obsolete(&argc, &argv);
while ((ch = getopt(argc, argv, "b:dDf:himNP:Rrs:tuvxy")) != -1)
switch(ch) {
case 'b':
/* Change default tape blocksize. */
bflag = 1;
ntrec = strtol(optarg, &p, 10);
if (*p)
errx(1, "illegal blocksize -- %s", optarg);
if (ntrec <= 0)
errx(1, "block size must be greater than 0");
break;
case 'd':
dflag = 1;
break;
case 'D':
Dflag = 1;
break;
case 'f':
if (pipecmd)
errx(1,
"-P and -f options are mutually exclusive");
inputdev = optarg;
break;
case 'P':
if (!pipecmd && inputdev)
errx(1,
"-P and -f options are mutually exclusive");
inputdev = optarg;
pipecmd = 1;
break;
case 'h':
hflag = 0;
break;
case 'i':
case 'R':
case 'r':
case 't':
case 'x':
if (command != '\0')
errx(1,
"%c and %c options are mutually exclusive",
ch, command);
command = ch;
break;
case 'm':
mflag = 0;
break;
case 'N':
Nflag = 1;
break;
case 's':
/* Dumpnum (skip to) for multifile dump tapes. */
dumpnum = strtol(optarg, &p, 10);
if (*p)
errx(1, "illegal dump number -- %s", optarg);
if (dumpnum <= 0)
errx(1, "dump number must be greater than 0");
break;
case 'u':
uflag = 1;
break;
case 'v':
vflag = 1;
break;
case 'y':
yflag = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (command == '\0')
errx(1, "none of i, R, r, t or x options specified");
if (signal(SIGINT, onintr) == SIG_IGN)
(void) signal(SIGINT, SIG_IGN);
if (signal(SIGTERM, onintr) == SIG_IGN)
(void) signal(SIGTERM, SIG_IGN);
setlinebuf(stderr);
if (inputdev == NULL && (inputdev = getenv("TAPE")) == NULL)
inputdev = _PATH_DEFTAPE;
setinput(inputdev, pipecmd);
if (argc == 0) {
argc = 1;
*--argv = ".";
}
switch (command) {
/*
* Interactive mode.
*/
case 'i':
setup();
extractdirs(1);
initsymtable(NULL);
runcmdshell();
break;
/*
* Incremental restoration of a file system.
*/
case 'r':
setup();
if (dumptime > 0) {
/*
* This is an incremental dump tape.
*/
vprintf(stdout, "Begin incremental restore\n");
initsymtable(symtbl);
extractdirs(1);
removeoldleaves();
vprintf(stdout, "Calculate node updates.\n");
treescan(".", ROOTINO, nodeupdates);
findunreflinks();
removeoldnodes();
} else {
/*
* This is a level zero dump tape.
*/
vprintf(stdout, "Begin level 0 restore\n");
initsymtable((char *)0);
extractdirs(1);
vprintf(stdout, "Calculate extraction list.\n");
treescan(".", ROOTINO, nodeupdates);
}
createleaves(symtbl);
createlinks();
setdirmodes(FORCE);
checkrestore();
if (dflag) {
vprintf(stdout, "Verify the directory structure\n");
treescan(".", ROOTINO, verifyfile);
}
dumpsymtable(symtbl, (long)1);
break;
/*
* Resume an incremental file system restoration.
*/
case 'R':
initsymtable(symtbl);
skipmaps();
skipdirs();
createleaves(symtbl);
createlinks();
setdirmodes(FORCE);
checkrestore();
dumpsymtable(symtbl, (long)1);
break;
/*
* List contents of tape.
*/
case 't':
setup();
extractdirs(0);
initsymtable((char *)0);
while (argc--) {
canon(*argv++, name, sizeof(name));
ino = dirlookup(name);
if (ino == 0)
continue;
treescan(name, ino, listfile);
}
break;
/*
* Batch extraction of tape contents.
*/
case 'x':
setup();
extractdirs(1);
initsymtable((char *)0);
while (argc--) {
canon(*argv++, name, sizeof(name));
ino = dirlookup(name);
if (ino == 0)
continue;
if (mflag)
pathcheck(name);
treescan(name, ino, addfile);
}
createfiles();
createlinks();
setdirmodes(0);
if (dflag)
checkrestore();
break;
}
done(0);
/* NOTREACHED */
}
static void
usage()
{
const char *const common =
"[-b blocksize] [-f file | -P pipecommand] [-s fileno]";
const char *const fileell = "[file ...]";
(void)fprintf(stderr, "usage:\t%s %s\n\t%s %s\n\t%s %s\n"
"\t%s %s %s\n\t%s %s %s\n",
"restore -i [-dhmNuvy]", common,
"restore -R [-dNuvy]", common,
"restore -r [-dNuvy]", common,
"restore -t [-dhNuvy]", common, fileell,
"restore -x [-dhmNuvy]", common, fileell);
done(1);
}
/*
* obsolete --
* Change set of key letters and ordered arguments into something
* getopt(3) will like.
*/
static void
obsolete(int *argcp, char **argvp[])
{
int argc, flags;
char *ap, **argv, *flagsp, **nargv, *p;
/* Setup. */
argv = *argvp;
argc = *argcp;
/* Return if no arguments or first argument has leading dash. */
ap = argv[1];
if (argc == 1 || *ap == '-')
return;
/* Allocate space for new arguments. */
if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
(p = flagsp = malloc(strlen(ap) + 2)) == NULL)
err(1, NULL);
*nargv++ = *argv;
argv += 2, argc -= 2;
for (flags = 0; *ap; ++ap) {
switch (*ap) {
case 'b':
case 'f':
case 's':
if (*argv == NULL) {
warnx("option requires an argument -- %c", *ap);
usage();
}
if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
err(1, NULL);
nargv[0][0] = '-';
nargv[0][1] = *ap;
(void)strcpy(&nargv[0][2], *argv);
++argv;
++nargv;
break;
default:
if (!flags) {
*p++ = '-';
flags = 1;
}
*p++ = *ap;
break;
}
}
/* Terminate flags. */
if (flags) {
*p = '\0';
*nargv++ = flagsp;
}
/* Copy remaining arguments. */
while ((*nargv++ = *argv++));
/* Update argument count. */
*argcp = nargv - *argvp - 1;
}