Net2/usr/src/sbin/restore/main.c
/*
* Copyright (c) 1983 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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
char copyright[] =
"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)main.c 5.8 (Berkeley) 6/1/90";
#endif /* not lint */
/*
* Modified to recursively extract all files within a subtree
* (supressed by the h option) and recreate the heirarchical
* structure of that subtree and move extracted files to their
* proper homes (supressed by the m option).
* Includes the s (skip files) option for use with multiple
* dumps on a single tape.
* 8/29/80 by Mike Litzkow
*
* Modified to work on the new file system and to recover from
* tape read errors.
* 1/19/82 by Kirk McKusick
*
* Full incremental restore running entirely in user code and
* interactive tape browser.
* 1/19/83 by Kirk McKusick
*/
#include "restore.h"
#include <protocols/dumprestore.h>
#include <sys/signal.h>
#include "pathnames.h"
int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
int hflag = 1, mflag = 1, Nflag = 0;
char command = '\0';
long dumpnum = 1;
long volno = 0;
long ntrec;
char *dumpmap;
char *clrimap;
ino_t maxino;
time_t dumptime;
time_t dumpdate;
FILE *terminal;
main(argc, argv)
int argc;
char *argv[];
{
register char *cp;
ino_t ino;
char *inputdev = _PATH_DEFTAPE;
char *symtbl = "./restoresymtable";
char name[MAXPATHLEN];
void onintr();
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 (argc < 2) {
usage:
fprintf(stderr, "Usage:\n%s%s%s%s%s",
"\trestore tfhsvy [file file ...]\n",
"\trestore xfhmsvy [file file ...]\n",
"\trestore ifhmsvy\n",
"\trestore rfsvy\n",
"\trestore Rfsvy\n");
done(1);
}
argv++;
argc -= 2;
command = '\0';
for (cp = *argv++; *cp; cp++) {
switch (*cp) {
case '-':
break;
case 'c':
cvtflag++;
break;
case 'd':
dflag++;
break;
case 'h':
hflag = 0;
break;
case 'm':
mflag = 0;
break;
case 'N':
Nflag++;
break;
case 'v':
vflag++;
break;
case 'y':
yflag++;
break;
case 'f':
if (argc < 1) {
fprintf(stderr, "missing device specifier\n");
done(1);
}
inputdev = *argv++;
argc--;
break;
case 'b':
/*
* change default tape blocksize
*/
bflag++;
if (argc < 1) {
fprintf(stderr, "missing block size\n");
done(1);
}
ntrec = atoi(*argv++);
if (ntrec <= 0) {
fprintf(stderr, "Block size must be a positive integer\n");
done(1);
}
argc--;
break;
case 's':
/*
* dumpnum (skip to) for multifile dump tapes
*/
if (argc < 1) {
fprintf(stderr, "missing dump number\n");
done(1);
}
dumpnum = atoi(*argv++);
if (dumpnum <= 0) {
fprintf(stderr, "Dump number must be a positive integer\n");
done(1);
}
argc--;
break;
case 't':
case 'R':
case 'r':
case 'x':
case 'i':
if (command != '\0') {
fprintf(stderr,
"%c and %c are mutually exclusive\n",
*cp, command);
goto usage;
}
command = *cp;
break;
default:
fprintf(stderr, "Bad key character %c\n", *cp);
goto usage;
}
}
if (command == '\0') {
fprintf(stderr, "must specify i, t, r, R, or x\n");
goto usage;
}
setinput(inputdev);
if (argc == 0) {
argc = 1;
*--argv = ".";
}
switch (command) {
/*
* Interactive mode.
*/
case 'i':
setup();
extractdirs(1);
initsymtable((char *)0);
runcmdshell();
done(0);
/*
* 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();
checkrestore();
if (dflag) {
vprintf(stdout, "Verify the directory structure\n");
treescan(".", ROOTINO, verifyfile);
}
dumpsymtable(symtbl, (long)1);
done(0);
/*
* Resume an incremental file system restoration.
*/
case 'R':
initsymtable(symtbl);
skipmaps();
skipdirs();
createleaves(symtbl);
createlinks();
setdirmodes();
checkrestore();
dumpsymtable(symtbl, (long)1);
done(0);
/*
* List contents of tape.
*/
case 't':
setup();
extractdirs(0);
initsymtable((char *)0);
while (argc--) {
canon(*argv++, name);
ino = dirlookup(name);
if (ino == 0)
continue;
treescan(name, ino, listfile);
}
done(0);
/*
* Batch extraction of tape contents.
*/
case 'x':
setup();
extractdirs(1);
initsymtable((char *)0);
while (argc--) {
canon(*argv++, name);
ino = dirlookup(name);
if (ino == 0)
continue;
if (mflag)
pathcheck(name);
treescan(name, ino, addfile);
}
createfiles();
createlinks();
setdirmodes();
if (dflag)
checkrestore();
done(0);
}
}