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- /*-
- * Copyright (c) 1980, 1991 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) 1980, 1991 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)main.c 5.24 (Berkeley) 7/16/92";
- #endif /* not lint */
-
- #ifdef sunos
- #include <stdio.h>
- #include <errno.h>
- #include <ctype.h>
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <ufs/fs.h>
- #else
- #include <sys/param.h>
- #include <sys/time.h>
- #include <ufs/ffs/fs.h>
- #endif
- #include <ufs/ufs/dinode.h>
- #include <protocols/dumprestore.h>
- #include <signal.h>
- #ifdef __STDC__
- #include <time.h>
- #endif
- #include <fcntl.h>
- #include <fstab.h>
- #include <stdio.h>
- #ifdef __STDC__
- #include <unistd.h>
- #include <stdlib.h>
- #include <string.h>
- #endif
- #include "dump.h"
- #include "pathnames.h"
-
- 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" */
- 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) */
- #ifdef RDUMP
- int rmthost();
- #endif
-
- 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;
- float fetapes;
- 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';
- argv++;
- argc -= 2;
- for (cp = *argv++; *cp; cp++) {
- switch (*cp) {
- case '-':
- continue;
-
- case 'w':
- lastdump('w'); /* tell us only what has to be done */
- (void) exit(0);
-
- case 'W': /* what to do */
- lastdump('W'); /* tell us state of what is done */
- (void) exit(0); /* do nothing else */
-
- case 'f': /* output file */
- if (argc < 1)
- break;
- tape = *argv++;
- argc--;
- continue;
-
- case 'd': /* density, in bits per inch */
- if (argc < 1)
- break;
- density = atoi(*argv) / 10;
- if (density < 1) {
- (void) fprintf(stderr, "bad density \"%s\"\n",
- *argv);
- Exit(X_ABORT);
- }
- argc--;
- argv++;
- if (density >= 625 && !bflag)
- ntrec = HIGHDENSITYTREC;
- continue;
-
- case 's': /* tape size, feet */
- if (argc < 1)
- break;
- tsize = atol(*argv);
- if (tsize < 1) {
- (void) fprintf(stderr, "bad size \"%s\"\n",
- *argv);
- Exit(X_ABORT);
- }
- argc--;
- argv++;
- tsize *= 12 * 10;
- continue;
-
- case 'T': /* time of last dump */
- if (argc < 1)
- break;
- spcl.c_ddate = unctime(*argv);
- if (spcl.c_ddate < 0) {
- (void) fprintf(stderr, "bad time \"%s\"\n",
- *argv);
- Exit(X_ABORT);
- }
- Tflag++;
- lastlevel = '?';
- argc--;
- argv++;
- continue;
-
- case 'b': /* blocks per tape write */
- if (argc < 1)
- break;
- bflag++;
- ntrec = atoi(*argv);
- if (ntrec < 1) {
- (void) fprintf(stderr, "%s \"%s\"\n",
- "bad number of blocks per write ", *argv);
- Exit(X_ABORT);
- }
- argc--;
- argv++;
- continue;
-
- case 'B': /* blocks per output file */
- if (argc < 1)
- break;
- blocksperfile = atol(*argv);
- if (blocksperfile < 1) {
- (void) fprintf(stderr, "%s \"%s\"\n",
- "bad number of blocks per file ", *argv);
- Exit(X_ABORT);
- }
- argc--;
- argv++;
- continue;
-
- case 'c': /* Tape is cart. not 9-track */
- cartridge++;
- continue;
-
- case '0': /* dump level */
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- level = *cp;
- continue;
-
- case 'u': /* update /etc/dumpdates */
- uflag++;
- continue;
-
- case 'n': /* notify operators */
- notify++;
- continue;
-
- default:
- (void) fprintf(stderr, "bad key '%c'\n", *cp);
- Exit(X_ABORT);
- }
- (void) fprintf(stderr, "missing argument to '%c'\n", *cp);
- Exit(X_ABORT);
- }
- if (argc < 1) {
- (void) fprintf(stderr, "Must specify disk or filesystem\n");
- Exit(X_ABORT);
- } else {
- 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)
- */
- 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)
- (void) exit(X_ABORT);
- #else
- (void) fprintf(stderr, "remote dump not enabled\n");
- (void) 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 != 0) {
- 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 != 0)
- 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);
- if (sblock->fs_inodefmt >= FS_44INODEFMT)
- spcl.c_flags |= DR_NEWINODEFMT;
- maxino = sblock->fs_ipg * sblock->fs_ncg - 1;
- mapsize = roundup(howmany(sblock->fs_ipg * sblock->fs_ncg, 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);
-
- 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 */
- else {
- if (blocksperfile)
- fetapes = (float) 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 */
- }
- if (pipeout)
- msg("estimated %ld tape blocks.\n", tapesize);
- else
- 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);
-
- msg("dumping (Pass III) [directories]\n");
- for (map = dumpdirmap, ino = 0; ino < maxino; ) {
- if ((ino % NBBY) == 0)
- dirty = *map++;
- else
- dirty >>= 1;
- ino++;
- 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 = 0; ino < maxino; ) {
- if ((ino % NBBY) == 0)
- dirty = *map++;
- else
- dirty >>= 1;
- ino++;
- if ((dirty & 1) == 0)
- continue;
- /*
- * Skip inodes deleted and reallocated as directories.
- */
- dp = getino(ino);
- if ((dp->di_mode & IFMT) == IFDIR)
- continue;
- (void) dumpino(dp, ino);
- }
-
- spcl.c_type = TS_END;
- for (i = 0; i < ntrec; i++)
- writeheader(maxino);
- 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);
- putdumptime();
- trewind();
- broadcast("DUMP IS DONE!\7\7\n");
- msg("DUMP IS DONE\n");
- Exit(X_FINOK);
- /* NOTREACHED */
- }
-
- 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();
- (void) 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[32];
- char *rindex();
- char *dp = rindex(cp, '/');
-
- if (dp == 0)
- return (0);
- *dp = 0;
- (void) strcpy(rawbuf, cp);
- *dp = '/';
- (void) strcat(rawbuf, "/r");
- (void) strcat(rawbuf, dp+1);
- return (rawbuf);
- }
-
- #ifdef sunos
- char *
- strerror(errnum)
- int errnum;
- {
- extern int sys_nerr;
- extern char *sys_errlist[];
-
- if (errnum < sys_nerr) {
- return(sys_errlist[errnum]);
- } else {
- return("bogus errno in strerror");
- }
- }
- #endif
-