[unix-history] / usr / src / etc / dump / dumpmain.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)dumpmain.c	5.6 (Berkeley) 2/23/87";
#endif not lint

#include "dump.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 */
#ifdef RDUMP
char	*host;
#endif
int	anydskipped;	/* set true in mark() if any directories are skipped */
			/* this lets us avoid map pass 2 in some cases */

main(argc, argv)
	int	argc;
	char	*argv[];
{
	char		*arg;
	int		bflag = 0, i;
	float		fetapes;
	register	struct	fstab	*dt;

	time(&(spcl.c_date));

	tsize = 0;	/* Default later, based on 'c' option for cart tapes */
	tape = TAPE;
	disk = DISK;
	increm = NINCREM;
	temp = TEMP;
	if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) {
		msg("TP_BSIZE must be a multiple of DEV_BSIZE\n");
		dumpabort();
	}
	incno = '9';
	uflag = 0;
	arg = "u";
	if(argc > 1) {
		argv++;
		argc--;
		arg = *argv;
		if (*arg == '-')
			argc++;
	}
	while(*arg)
	switch (*arg++) {
	case 'w':
		lastdump('w');		/* tell us only what has to be done */
		exit(0);
		break;
	case 'W':			/* what to do */
		lastdump('W');		/* tell us the current state of what has been done */
		exit(0);		/* do nothing else */
		break;

	case 'f':			/* output file */
		if(argc > 1) {
			argv++;
			argc--;
			tape = *argv;
		}
		break;

	case 'd':			/* density, in bits per inch */
		if (argc > 1) {
			argv++;
			argc--;
			density = atoi(*argv) / 10;
			if (density >= 625 && !bflag)
				ntrec = HIGHDENSITYTREC;
		}
		break;

	case 's':			/* tape size, feet */
		if(argc > 1) {
			argv++;
			argc--;
			tsize = atol(*argv);
			tsize *= 12L*10L;
		}
		break;

	case 'b':			/* blocks per tape write */
		if(argc > 1) {
			argv++;
			argc--;
			bflag++;
			ntrec = atol(*argv);
		}
		break;

	case 'c':			/* Tape is cart. not 9-track */
		cartridge++;
		break;

	case '0':			/* dump level */
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		incno = arg[-1];
		break;

	case 'u':			/* update /etc/dumpdates */
		uflag++;
		break;

	case 'n':			/* notify operators */
		notify++;
		break;

	default:
		fprintf(stderr, "bad key '%c%'\n", arg[-1]);
		Exit(X_ABORT);
	}
	if(argc > 1) {
		argv++;
		argc--;
		disk = *argv;
	}
	if (strcmp(tape, "-") == 0) {
		pipeout++;
		tape = "standard output";
	}

	/*
	 * 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;

#ifdef RDUMP
	{ char *index();
	  host = tape;
	  tape = index(host, ':');
	  if (tape == 0) {
		msg("need keyletter ``f'' and device ``host:tape''\n");
		exit(1);
	  }
	  *tape++ = 0;
	  if (rmthost(host) == 0)
		exit(X_ABORT);
	}
	setuid(getuid());	/* rmthost() is the only reason to be setuid */
#endif
	if (signal(SIGHUP, sighup) == SIG_IGN)
		signal(SIGHUP, SIG_IGN);
	if (signal(SIGTRAP, sigtrap) == SIG_IGN)
		signal(SIGTRAP, SIG_IGN);
	if (signal(SIGFPE, sigfpe) == SIG_IGN)
		signal(SIGFPE, SIG_IGN);
	if (signal(SIGBUS, sigbus) == SIG_IGN)
		signal(SIGBUS, SIG_IGN);
	if (signal(SIGSEGV, sigsegv) == SIG_IGN)
		signal(SIGSEGV, SIG_IGN);
	if (signal(SIGTERM, sigterm) == SIG_IGN)
		signal(SIGTERM, SIG_IGN);
	

	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);
		strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
		strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
	} else {
		strncpy(spcl.c_dev, disk, NAMELEN);
		strncpy(spcl.c_filesys, "an unlisted file system", NAMELEN);
	}
	strcpy(spcl.c_label, "none");
	gethostname(spcl.c_host, NAMELEN);
	spcl.c_level = incno - '0';
	spcl.c_type = TS_TAPE;
	getitime();		/* /etc/dumpdates snarfed */

	msg("Date of this level %c dump: %s\n", incno, prdate(spcl.c_date));
 	msg("Date of last level %c dump: %s\n",
		lastincno, prdate(spcl.c_ddate));
	msg("Dumping %s ", disk);
	if (dt != 0)
		msgtail("(%s) ", dt->fs_file);
#ifdef RDUMP
	msgtail("to %s on host %s\n", tape, host);
#else
	msgtail("to %s\n", tape);
#endif

	fi = open(disk, 0);
	if (fi < 0) {
		msg("Cannot open %s\n", disk);
		Exit(X_ABORT);
	}
	esize = 0;
	sblock = (struct fs *)buf;
	sync();
	bread(SBOFF, sblock, SBSIZE);
	if (sblock->fs_magic != FS_MAGIC) {
		msg("bad sblock magic number\n");
		dumpabort();
	}
	dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
	msiz = roundup(howmany(sblock->fs_ipg * sblock->fs_ncg, NBBY),
		TP_BSIZE);
	clrmap = (char *)calloc(msiz, sizeof(char));
	dirmap = (char *)calloc(msiz, sizeof(char));
	nodmap = (char *)calloc(msiz, sizeof(char));

	anydskipped = 0;
	msg("mapping (Pass I) [regular files]\n");
	pass(mark, (char *)NULL);		/* mark updates esize */

	if (anydskipped) {
		do {
			msg("mapping (Pass II) [directories]\n");
			nadded = 0;
			pass(add, dirmap);
		} while(nadded);
	} else				/* keep the operators happy */
		msg("mapping (Pass II) [directories]\n");

	bmapest(clrmap);
	bmapest(nodmap);

	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 = 
		(	  esize		/* blocks */
			* TP_BSIZE	/* bytes/block */
			* (1.0/density)	/* 0.1" / byte */
		  +
			  esize		/* 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 =
		(	  esize		/* blocks */
			* TP_BSIZE	/* bytes / block */
			* (1.0/density)	/* 0.1" / byte */
		  +
			  esize		/* blocks */
			* (1.0/ntrec)	/* IRG's / block */
			* tenthsperirg	/* 0.1" / IRG */
		) * (1.0 / tsize );	/* tape / 0.1" */
	}
	etapes = fetapes;		/* truncating assignment */
	etapes++;
	/* count the nodemap on each additional tape */
	for (i = 1; i < etapes; i++)
		bmapest(nodmap);
	esize += i + 10;	/* headers + 10 trailer blocks */
	msg("estimated %ld tape blocks on %3.2f tape(s).\n", esize, fetapes);

	alloctape();			/* Allocate tape buffer */

	otape();			/* bitmap is the first to tape write */
	time(&(tstart_writing));
	bitmap(clrmap, TS_CLRI);

	msg("dumping (Pass III) [directories]\n");
 	pass(dirdump, dirmap);

	msg("dumping (Pass IV) [regular files]\n");
	pass(dump, nodmap);

	spcl.c_type = TS_END;
#ifndef RDUMP
	for(i=0; i<ntrec; i++)
		spclrec();
#endif
	msg("DUMP: %ld tape blocks on %d tape(s)\n",spcl.c_tapea,spcl.c_volume);
	msg("DUMP IS DONE\n");

	putitime();
#ifndef RDUMP
	if (!pipeout) {
		close(to);
		rewind();
	}
#else
	tflush(1);
	rewind();
#endif
	broadcast("DUMP IS DONE!\7\7\n");
	Exit(X_FINOK);
}

int	sighup(){	msg("SIGHUP()  try rewriting\n"); sigAbort();}
int	sigtrap(){	msg("SIGTRAP()  try rewriting\n"); sigAbort();}
int	sigfpe(){	msg("SIGFPE()  try rewriting\n"); sigAbort();}
int	sigbus(){	msg("SIGBUS()  try rewriting\n"); sigAbort();}
int	sigsegv(){	msg("SIGSEGV()  ABORTING!\n"); abort();}
int	sigalrm(){	msg("SIGALRM()  try rewriting\n"); sigAbort();}
int	sigterm(){	msg("SIGTERM()  try rewriting\n"); sigAbort();}

sigAbort()
{
	if (pipeout) {
		msg("Unknown signal, cannot recover\n");
		dumpabort();
	}
	msg("Rewriting attempted as response to unknown signal.\n");
	fflush(stderr);
	fflush(stdout);
	close_rewind();
	exit(X_REWRITE);
}

char *rawname(cp)
	char *cp;
{
	static char rawbuf[32];
	char *rindex();
	char *dp = rindex(cp, '/');

	if (dp == 0)
		return (0);
	*dp = 0;
	strcpy(rawbuf, cp);
	*dp = '/';
	strcat(rawbuf, "/r");
	strcat(rawbuf, dp+1);
	return (rawbuf);
}
Commit	Line	Data
76797561 DF	1	/*
	2	* Copyright (c) 1980 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*/
	6
	7	#ifndef lint
ca67e7b4	8	static char sccsid[] = "@(#)dumpmain.c 5.6 (Berkeley) 2/23/87";
76797561 DF	9	#endif not lint
76797561 DF	10
0393c389 BJ	11	#include "dump.h"
	12
	13	int notify = 0; /* notify operator flag */
	14	int blockswritten = 0; /* number of blocks written on current tape */
	15	int tapeno = 0; /* current tape number */
1ddebffe SL	16	int density = 0; /* density in bytes/0.1" */
	17	int ntrec = NTREC; /* # tape blocks in each tape record */
	18	int cartridge = 0; /* Assume non-cartridge tape */
ff96014a	19	long dev_bsize = 1; /* recalculated below */
c47275e3 SL	20	#ifdef RDUMP
	21	char *host;
	22	#endif
9c787c21 KM	23	int anydskipped; /* set true in mark() if any directories are skipped */
9c787c21 KM	24	/* this lets us avoid map pass 2 in some cases */
0393c389 BJ	25
	26	main(argc, argv)
	27	int argc;
	28	char *argv[];
	29	{
	30	char *arg;
a1f8d10b	31	int bflag = 0, i;
0393c389 BJ	32	float fetapes;
	33	register struct fstab *dt;
	34
	35	time(&(spcl.c_date));
	36
1ddebffe	37	tsize = 0; /* Default later, based on 'c' option for cart tapes */
0393c389 BJ	38	tape = TAPE;
	39	disk = DISK;
	40	increm = NINCREM;
51e45c89	41	temp = TEMP;
b6407c9d KM	42	if (TP_BSIZE / DEV_BSIZE == 0 \|\| TP_BSIZE % DEV_BSIZE != 0) {
	43	msg("TP_BSIZE must be a multiple of DEV_BSIZE\n");
	44	dumpabort();
	45	}
0393c389 BJ	46	incno = '9';
	47	uflag = 0;
	48	arg = "u";
	49	if(argc > 1) {
	50	argv++;
	51	argc--;
	52	arg = *argv;
	53	if (*arg == '-')
	54	argc++;
	55	}
	56	while(*arg)
	57	switch (*arg++) {
77db894d BJ	58	case 'w':
	59	lastdump('w'); /* tell us only what has to be done */
	60	exit(0);
	61	break;
0393c389	62	case 'W': /* what to do */
77db894d	63	lastdump('W'); /* tell us the current state of what has been done */
0393c389 BJ	64	exit(0); /* do nothing else */
	65	break;
	66
0393c389 BJ	67	case 'f': /* output file */
	68	if(argc > 1) {
	69	argv++;
	70	argc--;
	71	tape = *argv;
	72	}
	73	break;
	74
	75	case 'd': /* density, in bits per inch */
	76	if (argc > 1) {
	77	argv++;
	78	argc--;
	79	density = atoi(*argv) / 10;
a1f8d10b KM	80	if (density >= 625 && !bflag)
a1f8d10b KM	81	ntrec = HIGHDENSITYTREC;
0393c389 BJ	82	}
	83	break;
	84
	85	case 's': /* tape size, feet */
	86	if(argc > 1) {
	87	argv++;
	88	argc--;
	89	tsize = atol(*argv);
	90	tsize = 12L10L;
	91	}
	92	break;
	93
1ddebffe SL	94	case 'b': /* blocks per tape write */
	95	if(argc > 1) {
	96	argv++;
	97	argc--;
a1f8d10b	98	bflag++;
1ddebffe SL	99	ntrec = atol(*argv);
	100	}
	101	break;
	102
	103	case 'c': /* Tape is cart. not 9-track */
	104	cartridge++;
	105	break;
	106
0393c389 BJ	107	case '0': /* dump level */
	108	case '1':
	109	case '2':
	110	case '3':
	111	case '4':
	112	case '5':
	113	case '6':
	114	case '7':
	115	case '8':
	116	case '9':
	117	incno = arg[-1];
	118	break;
	119
	120	case 'u': /* update /etc/dumpdates */
	121	uflag++;
	122	break;
	123
	124	case 'n': /* notify operators */
	125	notify++;
	126	break;
	127
	128	default:
a47b7e40	129	fprintf(stderr, "bad key '%c%'\n", arg[-1]);
0393c389 BJ	130	Exit(X_ABORT);
	131	}
	132	if(argc > 1) {
	133	argv++;
	134	argc--;
	135	disk = *argv;
	136	}
a47b7e40 KM	137	if (strcmp(tape, "-") == 0) {
	138	pipeout++;
	139	tape = "standard output";
	140	}
1ddebffe SL	141
	142	/*
	143	* Determine how to default tape size and density
	144	*
	145	* density tape size
	146	* 9-track 1600 bpi (160 bytes/.1") 2300 ft.
	147	* 9-track 6250 bpi (625 bytes/.1") 2300 ft.
e1de34c9	148	* cartridge 8000 bpi (100 bytes/.1") 1700 ft. (450*4 - slop)
1ddebffe SL	149	*/
	150	if (density == 0)
	151	density = cartridge ? 100 : 160;
	152	if (tsize == 0)
e1de34c9	153	tsize = cartridge ? 1700L120L : 2300L120L;
1ddebffe	154
c29a1d14 SL	155	#ifdef RDUMP
	156	{ char *index();
	157	host = tape;
	158	tape = index(host, ':');
	159	if (tape == 0) {
3eb16441	160	msg("need keyletter ``f'' and device ``host:tape''\n");
c29a1d14 SL	161	exit(1);
	162	}
	163	*tape++ = 0;
	164	if (rmthost(host) == 0)
	165	exit(X_ABORT);
	166	}
427b3401	167	setuid(getuid()); /* rmthost() is the only reason to be setuid */
c29a1d14	168	#endif
0393c389 BJ	169	if (signal(SIGHUP, sighup) == SIG_IGN)
	170	signal(SIGHUP, SIG_IGN);
	171	if (signal(SIGTRAP, sigtrap) == SIG_IGN)
	172	signal(SIGTRAP, SIG_IGN);
	173	if (signal(SIGFPE, sigfpe) == SIG_IGN)
	174	signal(SIGFPE, SIG_IGN);
	175	if (signal(SIGBUS, sigbus) == SIG_IGN)
	176	signal(SIGBUS, SIG_IGN);
	177	if (signal(SIGSEGV, sigsegv) == SIG_IGN)
	178	signal(SIGSEGV, SIG_IGN);
	179	if (signal(SIGTERM, sigterm) == SIG_IGN)
	180	signal(SIGTERM, SIG_IGN);
	181
	182
	183	if (signal(SIGINT, interrupt) == SIG_IGN)
	184	signal(SIGINT, SIG_IGN);
	185
	186	set_operators(); /* /etc/group snarfed */
	187	getfstab(); /* /etc/fstab snarfed */
	188	/*
	189	* disk can be either the full special file name,
	190	* the suffix of the special file name,
	191	* the special name missing the leading '/',
	192	* the file system name with or without the leading '/'.
	193	*/
	194	dt = fstabsearch(disk);
b28b78d4	195	if (dt != 0) {
0393c389	196	disk = rawname(dt->fs_spec);
b28b78d4 KM	197	strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
	198	strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
	199	} else {
	200	strncpy(spcl.c_dev, disk, NAMELEN);
	201	strncpy(spcl.c_filesys, "an unlisted file system", NAMELEN);
	202	}
	203	strcpy(spcl.c_label, "none");
	204	gethostname(spcl.c_host, NAMELEN);
	205	spcl.c_level = incno - '0';
	206	spcl.c_type = TS_TAPE;
0393c389 BJ	207	getitime(); /* /etc/dumpdates snarfed */
	208
	209	msg("Date of this level %c dump: %s\n", incno, prdate(spcl.c_date));
c02e5137 KM	210	msg("Date of last level %c dump: %s\n",
c02e5137 KM	211	lastincno, prdate(spcl.c_ddate));
0393c389 BJ	212	msg("Dumping %s ", disk);
	213	if (dt != 0)
	214	msgtail("(%s) ", dt->fs_file);
c29a1d14	215	#ifdef RDUMP
b17ae412 KM	216	msgtail("to %s on host %s\n", tape, host);
	217	#else
	218	msgtail("to %s\n", tape);
c47275e3	219	#endif
0393c389 BJ	220
	221	fi = open(disk, 0);
	222	if (fi < 0) {
	223	msg("Cannot open %s\n", disk);
	224	Exit(X_ABORT);
	225	}
0393c389	226	esize = 0;
b6407c9d KM	227	sblock = (struct fs *)buf;
b6407c9d KM	228	sync();
ff96014a	229	bread(SBOFF, sblock, SBSIZE);
b6407c9d KM	230	if (sblock->fs_magic != FS_MAGIC) {
	231	msg("bad sblock magic number\n");
	232	dumpabort();
	233	}
ff96014a	234	dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
b6407c9d KM	235	msiz = roundup(howmany(sblock->fs_ipg * sblock->fs_ncg, NBBY),
	236	TP_BSIZE);
	237	clrmap = (char *)calloc(msiz, sizeof(char));
	238	dirmap = (char *)calloc(msiz, sizeof(char));
	239	nodmap = (char *)calloc(msiz, sizeof(char));
0393c389	240
9c787c21	241	anydskipped = 0;
0393c389	242	msg("mapping (Pass I) [regular files]\n");
b6407c9d	243	pass(mark, (char )NULL); / mark updates esize */
0393c389	244
9c787c21 KM	245	if (anydskipped) {
	246	do {
	247	msg("mapping (Pass II) [directories]\n");
	248	nadded = 0;
	249	pass(add, dirmap);
	250	} while(nadded);
	251	} else /* keep the operators happy */
0393c389	252	msg("mapping (Pass II) [directories]\n");
0393c389 BJ	253
	254	bmapest(clrmap);
	255	bmapest(nodmap);
	256
1ddebffe SL	257	if (cartridge) {
	258	/* Estimate number of tapes, assuming streaming stops at
	259	the end of each block written, and not in mid-block.
	260	Assume no erroneous blocks; this can be compensated for
	261	with an artificially low tape size. */
	262	fetapes =
	263	( esize /* blocks */
	264	* TP_BSIZE /* bytes/block */
	265	* (1.0/density) /* 0.1" / byte */
	266	+
	267	esize /* blocks */
	268	* (1.0/ntrec) /* streaming-stops per block */
	269	* 15.48 /* 0.1" / streaming-stop */
	270	) * (1.0 / tsize ); /* tape / 0.1" */
	271	} else {
	272	/* Estimate number of tapes, for old fashioned 9-track tape */
	273	int tenthsperirg = (density == 625) ? 3 : 7;
	274	fetapes =
b6407c9d KM	275	( esize /* blocks */
	276	* TP_BSIZE /* bytes / block */
	277	* (1.0/density) /* 0.1" / byte */
0393c389	278	+
b6407c9d	279	esize /* blocks */
1ddebffe SL	280	* (1.0/ntrec) /* IRG's / block */
1ddebffe SL	281	* tenthsperirg /* 0.1" / IRG */
1ddebffe SL	282	) * (1.0 / tsize ); /* tape / 0.1" */
1ddebffe SL	283	}
0393c389 BJ	284	etapes = fetapes; /* truncating assignment */
0393c389 BJ	285	etapes++;
b6407c9d KM	286	/* count the nodemap on each additional tape */
	287	for (i = 1; i < etapes; i++)
	288	bmapest(nodmap);
	289	esize += i + 10; /* headers + 10 trailer blocks */
0393c389 BJ	290	msg("estimated %ld tape blocks on %3.2f tape(s).\n", esize, fetapes);
0393c389 BJ	291
1ddebffe SL	292	alloctape(); /* Allocate tape buffer */
1ddebffe SL	293
0393c389 BJ	294	otape(); /* bitmap is the first to tape write */
	295	time(&(tstart_writing));
	296	bitmap(clrmap, TS_CLRI);
	297
	298	msg("dumping (Pass III) [directories]\n");
7b0c1d85	299	pass(dirdump, dirmap);
0393c389 BJ	300
	301	msg("dumping (Pass IV) [regular files]\n");
	302	pass(dump, nodmap);
	303
	304	spcl.c_type = TS_END;
c47275e3	305	#ifndef RDUMP
1ddebffe	306	for(i=0; i<ntrec; i++)
0393c389	307	spclrec();
c47275e3	308	#endif
0393c389 BJ	309	msg("DUMP: %ld tape blocks on %d tape(s)\n",spcl.c_tapea,spcl.c_volume);
	310	msg("DUMP IS DONE\n");
	311
	312	putitime();
c47275e3	313	#ifndef RDUMP
a47b7e40 KM	314	if (!pipeout) {
	315	close(to);
	316	rewind();
	317	}
c47275e3 SL	318	#else
c47275e3 SL	319	tflush(1);
0393c389	320	rewind();
a47b7e40	321	#endif
0393c389 BJ	322	broadcast("DUMP IS DONE!\7\7\n");
	323	Exit(X_FINOK);
	324	}
	325
	326	int sighup(){ msg("SIGHUP() try rewriting\n"); sigAbort();}
	327	int sigtrap(){ msg("SIGTRAP() try rewriting\n"); sigAbort();}
	328	int sigfpe(){ msg("SIGFPE() try rewriting\n"); sigAbort();}
	329	int sigbus(){ msg("SIGBUS() try rewriting\n"); sigAbort();}
	330	int sigsegv(){ msg("SIGSEGV() ABORTING!\n"); abort();}
	331	int sigalrm(){ msg("SIGALRM() try rewriting\n"); sigAbort();}
	332	int sigterm(){ msg("SIGTERM() try rewriting\n"); sigAbort();}
	333
	334	sigAbort()
	335	{
a47b7e40 KM	336	if (pipeout) {
	337	msg("Unknown signal, cannot recover\n");
	338	dumpabort();
	339	}
0393c389 BJ	340	msg("Rewriting attempted as response to unknown signal.\n");
	341	fflush(stderr);
	342	fflush(stdout);
	343	close_rewind();
	344	exit(X_REWRITE);
	345	}
	346
	347	char *rawname(cp)
	348	char *cp;
	349	{
	350	static char rawbuf[32];
1d070b31	351	char *rindex();
0393c389 BJ	352	char *dp = rindex(cp, '/');
	353
	354	if (dp == 0)
	355	return (0);
	356	*dp = 0;
	357	strcpy(rawbuf, cp);
	358	*dp = '/';
	359	strcat(rawbuf, "/r");
	360	strcat(rawbuf, dp+1);
	361	return (rawbuf);
	362	}