eaa86f9d7f
for gcc >= 2.5 and no-ops for gcc >= 2.6. Converted to use __dead2 or __pure2 where it wasn't already done, except in math.h where use of __pure was mostly wrong.
579 lines
15 KiB
C
579 lines
15 KiB
C
/*-
|
|
* Copyright (c) 1980, 1991, 1993, 1994
|
|
* 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
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 4/15/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#ifdef sunos
|
|
#include <sys/vnode.h>
|
|
|
|
#include <ufs/inode.h>
|
|
#include <ufs/fs.h>
|
|
#else
|
|
#include <ufs/ffs/fs.h>
|
|
#include <ufs/ufs/dinode.h>
|
|
#endif
|
|
|
|
#include <protocols/dumprestore.h>
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <fstab.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#ifdef __STDC__
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include "dump.h"
|
|
#include "pathnames.h"
|
|
|
|
#ifndef SBOFF
|
|
#define SBOFF (SBLOCK * DEV_BSIZE)
|
|
#endif
|
|
|
|
int notify = 0; /* notify operator flag */
|
|
int blockswritten = 0; /* number of blocks written on current tape */
|
|
int tapeno = 0; /* current tape number */
|
|
int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
|
|
int ntrec = NTREC; /* # tape blocks in each tape record */
|
|
int cartridge = 0; /* Assume non-cartridge tape */
|
|
long dev_bsize = 1; /* recalculated below */
|
|
long blocksperfile; /* output blocks per file */
|
|
char *host = NULL; /* remote host (if any) */
|
|
|
|
static long numarg __P((int, char *, long, long, int *, char ***));
|
|
static void missingarg __P((int, char *)) __dead2;
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
register ino_t ino;
|
|
register int dirty;
|
|
register struct dinode *dp;
|
|
register struct fstab *dt;
|
|
register char *map;
|
|
register char *cp;
|
|
int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
|
|
ino_t maxino;
|
|
|
|
spcl.c_date = 0;
|
|
(void)time((time_t *)&spcl.c_date);
|
|
|
|
tsize = 0; /* Default later, based on 'c' option for cart tapes */
|
|
tape = _PATH_DEFTAPE;
|
|
dumpdates = _PATH_DUMPDATES;
|
|
temp = _PATH_DTMP;
|
|
if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
|
|
quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
|
|
level = '0';
|
|
if (argc == 1) {
|
|
(void) fprintf(stderr, "Must specify a key.\n");
|
|
Exit(X_ABORT);
|
|
}
|
|
argv++;
|
|
argc -= 2;
|
|
for (cp = *argv++; cp != NULL && *cp != '\0'; cp++) {
|
|
switch (*cp) {
|
|
case '-':
|
|
break;
|
|
|
|
case 'w':
|
|
lastdump('w'); /* tell us only what has to be done */
|
|
exit(0);
|
|
|
|
case 'W': /* what to do */
|
|
lastdump('W'); /* tell us state of what is done */
|
|
exit(0); /* do nothing else */
|
|
|
|
case 'f': /* output file */
|
|
if (argc < 1)
|
|
missingarg('f', "output file");
|
|
tape = *argv++;
|
|
argc--;
|
|
break;
|
|
|
|
case 'd': /* density, in bits per inch */
|
|
density = numarg('d', "density",
|
|
10L, 327670L, &argc, &argv) / 10;
|
|
if (density >= 625 && !bflag)
|
|
ntrec = HIGHDENSITYTREC;
|
|
break;
|
|
|
|
case 's': /* tape size, feet */
|
|
tsize = numarg('s', "size",
|
|
1L, 0L, &argc, &argv) * 12 * 10;
|
|
break;
|
|
|
|
case 'T': /* time of last dump */
|
|
if (argc < 1)
|
|
missingarg('T', "time of last dump");
|
|
spcl.c_ddate = unctime(*argv);
|
|
if (spcl.c_ddate < 0) {
|
|
(void)fprintf(stderr, "bad time \"%s\"\n",
|
|
*argv);
|
|
exit(X_ABORT);
|
|
}
|
|
Tflag = 1;
|
|
lastlevel = '?';
|
|
argc--;
|
|
argv++;
|
|
break;
|
|
|
|
case 'b': /* blocks per tape write */
|
|
ntrec = numarg('b', "number of blocks per write",
|
|
1L, 1000L, &argc, &argv);
|
|
/* XXX restore is unable to restore dumps that
|
|
were created with a blocksize larger than 32K.
|
|
Possibly a bug in the scsi tape driver. */
|
|
if ( ntrec > 32 ) {
|
|
msg("please choose a blocksize <= 32\n");
|
|
exit(X_ABORT);
|
|
}
|
|
break;
|
|
|
|
case 'B': /* blocks per output file */
|
|
blocksperfile = numarg('B', "number of blocks per file",
|
|
1L, 0L, &argc, &argv);
|
|
break;
|
|
|
|
case 'c': /* Tape is cart. not 9-track */
|
|
cartridge = 1;
|
|
break;
|
|
|
|
/* dump level */
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
level = *cp;
|
|
break;
|
|
|
|
case 'u': /* update /etc/dumpdates */
|
|
uflag = 1;
|
|
break;
|
|
|
|
case 'n': /* notify operators */
|
|
notify = 1;
|
|
break;
|
|
|
|
case 'h':
|
|
honorlevel = numarg('h', "honor level",
|
|
0L, 10L, &argc, &argv);
|
|
break;
|
|
|
|
default:
|
|
(void)fprintf(stderr, "bad key '%c'\n", *cp);
|
|
exit(X_ABORT);
|
|
}
|
|
}
|
|
if (argc < 1) {
|
|
(void)fprintf(stderr, "Must specify disk or filesystem\n");
|
|
exit(X_ABORT);
|
|
}
|
|
disk = *argv++;
|
|
argc--;
|
|
if (argc >= 1) {
|
|
(void)fprintf(stderr, "Unknown arguments to dump:");
|
|
while (argc--)
|
|
(void)fprintf(stderr, " %s", *argv++);
|
|
(void)fprintf(stderr, "\n");
|
|
exit(X_ABORT);
|
|
}
|
|
if (Tflag && uflag) {
|
|
(void)fprintf(stderr,
|
|
"You cannot use the T and u flags together.\n");
|
|
exit(X_ABORT);
|
|
}
|
|
if (strcmp(tape, "-") == 0) {
|
|
pipeout++;
|
|
tape = "standard output";
|
|
}
|
|
|
|
if (blocksperfile)
|
|
blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
|
|
else {
|
|
/*
|
|
* Determine how to default tape size and density
|
|
*
|
|
* density tape size
|
|
* 9-track 1600 bpi (160 bytes/.1") 2300 ft.
|
|
* 9-track 6250 bpi (625 bytes/.1") 2300 ft.
|
|
* cartridge 8000 bpi (100 bytes/.1") 1700 ft.
|
|
* (450*4 - slop)
|
|
* hilit19 hits again: "
|
|
*/
|
|
if (density == 0)
|
|
density = cartridge ? 100 : 160;
|
|
if (tsize == 0)
|
|
tsize = cartridge ? 1700L*120L : 2300L*120L;
|
|
}
|
|
|
|
if (index(tape, ':')) {
|
|
host = tape;
|
|
tape = index(host, ':');
|
|
*tape++ = '\0';
|
|
#ifdef RDUMP
|
|
if (rmthost(host) == 0)
|
|
exit(X_ABORT);
|
|
#else
|
|
(void)fprintf(stderr, "remote dump not enabled\n");
|
|
exit(X_ABORT);
|
|
#endif
|
|
}
|
|
(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
|
|
|
|
if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
|
|
signal(SIGHUP, sig);
|
|
if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
|
|
signal(SIGTRAP, sig);
|
|
if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
|
|
signal(SIGFPE, sig);
|
|
if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
|
|
signal(SIGBUS, sig);
|
|
if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
|
|
signal(SIGSEGV, sig);
|
|
if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
|
|
signal(SIGTERM, sig);
|
|
if (signal(SIGINT, interrupt) == SIG_IGN)
|
|
signal(SIGINT, SIG_IGN);
|
|
|
|
set_operators(); /* /etc/group snarfed */
|
|
getfstab(); /* /etc/fstab snarfed */
|
|
/*
|
|
* disk can be either the full special file name,
|
|
* the suffix of the special file name,
|
|
* the special name missing the leading '/',
|
|
* the file system name with or without the leading '/'.
|
|
*/
|
|
dt = fstabsearch(disk);
|
|
if (dt != NULL) {
|
|
disk = rawname(dt->fs_spec);
|
|
(void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
|
|
(void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
|
|
} else {
|
|
(void)strncpy(spcl.c_dev, disk, NAMELEN);
|
|
(void)strncpy(spcl.c_filesys, "an unlisted file system",
|
|
NAMELEN);
|
|
}
|
|
(void)strcpy(spcl.c_label, "none");
|
|
(void)gethostname(spcl.c_host, NAMELEN);
|
|
spcl.c_level = level - '0';
|
|
spcl.c_type = TS_TAPE;
|
|
if (!Tflag)
|
|
getdumptime(); /* /etc/dumpdates snarfed */
|
|
|
|
msg("Date of this level %c dump: %s", level,
|
|
spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
|
|
msg("Date of last level %c dump: %s", lastlevel,
|
|
spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
|
|
msg("Dumping %s ", disk);
|
|
if (dt != NULL)
|
|
msgtail("(%s) ", dt->fs_file);
|
|
if (host)
|
|
msgtail("to %s on host %s\n", tape, host);
|
|
else
|
|
msgtail("to %s\n", tape);
|
|
|
|
if ((diskfd = open(disk, O_RDONLY)) < 0) {
|
|
msg("Cannot open %s\n", disk);
|
|
exit(X_ABORT);
|
|
}
|
|
sync();
|
|
sblock = (struct fs *)sblock_buf;
|
|
bread(SBOFF, (char *) sblock, SBSIZE);
|
|
if (sblock->fs_magic != FS_MAGIC)
|
|
quit("bad sblock magic number\n");
|
|
dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
|
|
dev_bshift = ffs(dev_bsize) - 1;
|
|
if (dev_bsize != (1 << dev_bshift))
|
|
quit("dev_bsize (%d) is not a power of 2", dev_bsize);
|
|
tp_bshift = ffs(TP_BSIZE) - 1;
|
|
if (TP_BSIZE != (1 << tp_bshift))
|
|
quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
|
|
#ifdef FS_44INODEFMT
|
|
if (sblock->fs_inodefmt >= FS_44INODEFMT)
|
|
spcl.c_flags |= DR_NEWINODEFMT;
|
|
#endif
|
|
maxino = sblock->fs_ipg * sblock->fs_ncg;
|
|
mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
|
|
usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
|
|
|
nonodump = spcl.c_level < honorlevel;
|
|
|
|
msg("mapping (Pass I) [regular files]\n");
|
|
anydirskipped = mapfiles(maxino, &tapesize);
|
|
|
|
msg("mapping (Pass II) [directories]\n");
|
|
while (anydirskipped) {
|
|
anydirskipped = mapdirs(maxino, &tapesize);
|
|
}
|
|
|
|
if (pipeout) {
|
|
tapesize += 10; /* 10 trailer blocks */
|
|
msg("estimated %ld tape blocks.\n", tapesize);
|
|
} else {
|
|
double fetapes;
|
|
|
|
if (blocksperfile)
|
|
fetapes = (double) tapesize / blocksperfile;
|
|
else if (cartridge) {
|
|
/* Estimate number of tapes, assuming streaming stops at
|
|
the end of each block written, and not in mid-block.
|
|
Assume no erroneous blocks; this can be compensated
|
|
for with an artificially low tape size. */
|
|
fetapes =
|
|
( tapesize /* blocks */
|
|
* TP_BSIZE /* bytes/block */
|
|
* (1.0/density) /* 0.1" / byte " */
|
|
+
|
|
tapesize /* blocks */
|
|
* (1.0/ntrec) /* streaming-stops per block */
|
|
* 15.48 /* 0.1" / streaming-stop " */
|
|
) * (1.0 / tsize ); /* tape / 0.1" " */
|
|
} else {
|
|
/* Estimate number of tapes, for old fashioned 9-track
|
|
tape */
|
|
int tenthsperirg = (density == 625) ? 3 : 7;
|
|
fetapes =
|
|
( tapesize /* blocks */
|
|
* TP_BSIZE /* bytes / block */
|
|
* (1.0/density) /* 0.1" / byte " */
|
|
+
|
|
tapesize /* blocks */
|
|
* (1.0/ntrec) /* IRG's / block */
|
|
* tenthsperirg /* 0.1" / IRG " */
|
|
) * (1.0 / tsize ); /* tape / 0.1" " */
|
|
}
|
|
etapes = fetapes; /* truncating assignment */
|
|
etapes++;
|
|
/* count the dumped inodes map on each additional tape */
|
|
tapesize += (etapes - 1) *
|
|
(howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
|
tapesize += etapes + 10; /* headers + 10 trailer blks */
|
|
msg("estimated %ld tape blocks on %3.2f tape(s).\n",
|
|
tapesize, fetapes);
|
|
}
|
|
|
|
/*
|
|
* Allocate tape buffer.
|
|
*/
|
|
if (!alloctape())
|
|
quit("can't allocate tape buffers - try a smaller blocking factor.\n");
|
|
|
|
startnewtape(1);
|
|
(void)time((time_t *)&(tstart_writing));
|
|
dumpmap(usedinomap, TS_CLRI, maxino - 1);
|
|
|
|
msg("dumping (Pass III) [directories]\n");
|
|
dirty = 0; /* XXX just to get gcc to shut up */
|
|
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
|
|
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
|
|
dirty = *map++;
|
|
else
|
|
dirty >>= 1;
|
|
if ((dirty & 1) == 0)
|
|
continue;
|
|
/*
|
|
* Skip directory inodes deleted and maybe reallocated
|
|
*/
|
|
dp = getino(ino);
|
|
if ((dp->di_mode & IFMT) != IFDIR)
|
|
continue;
|
|
(void)dumpino(dp, ino);
|
|
}
|
|
|
|
msg("dumping (Pass IV) [regular files]\n");
|
|
for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
|
|
int mode;
|
|
|
|
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
|
|
dirty = *map++;
|
|
else
|
|
dirty >>= 1;
|
|
if ((dirty & 1) == 0)
|
|
continue;
|
|
/*
|
|
* Skip inodes deleted and reallocated as directories.
|
|
*/
|
|
dp = getino(ino);
|
|
mode = dp->di_mode & IFMT;
|
|
if (mode == IFDIR)
|
|
continue;
|
|
(void)dumpino(dp, ino);
|
|
}
|
|
|
|
(void)time((time_t *)&(tend_writing));
|
|
spcl.c_type = TS_END;
|
|
for (i = 0; i < ntrec; i++)
|
|
writeheader(maxino - 1);
|
|
if (pipeout)
|
|
msg("DUMP: %ld tape blocks\n", spcl.c_tapea);
|
|
else
|
|
msg("DUMP: %ld tape blocks on %d volumes(s)\n",
|
|
spcl.c_tapea, spcl.c_volume);
|
|
|
|
/* report dump performance, avoid division through zero */
|
|
if (tend_writing - tstart_writing == 0)
|
|
msg("finished in less than a second\n");
|
|
else
|
|
msg("finished in %d seconds, throughput %d KBytes/sec\n",
|
|
tend_writing - tstart_writing,
|
|
spcl.c_tapea / (tend_writing - tstart_writing));
|
|
|
|
putdumptime();
|
|
trewind();
|
|
broadcast("DUMP IS DONE!\7\7\n");
|
|
msg("DUMP IS DONE\n");
|
|
Exit(X_FINOK);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* Pick up a numeric argument. It must be nonnegative and in the given
|
|
* range (except that a vmax of 0 means unlimited).
|
|
*/
|
|
static long
|
|
numarg(letter, meaning, vmin, vmax, pargc, pargv)
|
|
int letter;
|
|
char *meaning;
|
|
long vmin, vmax;
|
|
int *pargc;
|
|
char ***pargv;
|
|
{
|
|
register char *p;
|
|
long val;
|
|
char *str;
|
|
|
|
if (--*pargc < 0)
|
|
missingarg(letter, meaning);
|
|
str = *(*pargv)++;
|
|
for (p = str; *p; p++)
|
|
if (!isdigit(*p))
|
|
goto bad;
|
|
val = atol(str);
|
|
if (val < vmin || (vmax && val > vmax))
|
|
goto bad;
|
|
return (val);
|
|
|
|
bad:
|
|
(void)fprintf(stderr, "bad '%c' (%s) value \"%s\"\n",
|
|
letter, meaning, str);
|
|
exit(X_ABORT);
|
|
}
|
|
|
|
static void
|
|
missingarg(letter, meaning)
|
|
int letter;
|
|
char *meaning;
|
|
{
|
|
|
|
(void)fprintf(stderr, "The '%c' flag (%s) requires an argument\n",
|
|
letter, meaning);
|
|
exit(X_ABORT);
|
|
}
|
|
|
|
void
|
|
sig(signo)
|
|
int signo;
|
|
{
|
|
switch(signo) {
|
|
case SIGALRM:
|
|
case SIGBUS:
|
|
case SIGFPE:
|
|
case SIGHUP:
|
|
case SIGTERM:
|
|
case SIGTRAP:
|
|
if (pipeout)
|
|
quit("Signal on pipe: cannot recover\n");
|
|
msg("Rewriting attempted as response to unknown signal.\n");
|
|
(void)fflush(stderr);
|
|
(void)fflush(stdout);
|
|
close_rewind();
|
|
exit(X_REWRITE);
|
|
/* NOTREACHED */
|
|
case SIGSEGV:
|
|
msg("SIGSEGV: ABORTING!\n");
|
|
(void)signal(SIGSEGV, SIG_DFL);
|
|
(void)kill(0, SIGSEGV);
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
|
|
char *
|
|
rawname(cp)
|
|
char *cp;
|
|
{
|
|
static char rawbuf[MAXPATHLEN];
|
|
char *dp = rindex(cp, '/');
|
|
|
|
if (dp == NULL)
|
|
return (NULL);
|
|
*dp = '\0';
|
|
(void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
|
|
*dp = '/';
|
|
(void)strncat(rawbuf, "/r", MAXPATHLEN-1 - strlen(rawbuf));
|
|
(void)strncat(rawbuf, dp + 1, MAXPATHLEN-1 - strlen(rawbuf));
|
|
return (rawbuf);
|
|
}
|
|
|
|
#ifdef sunos
|
|
const char *
|
|
strerror(errnum)
|
|
int errnum;
|
|
{
|
|
extern int sys_nerr;
|
|
extern const char *const sys_errlist[];
|
|
|
|
if (errnum < sys_nerr)
|
|
return (sys_errlist[errnum]);
|
|
else
|
|
return ("bogus errno in strerror");
|
|
}
|
|
#endif
|