838 lines
21 KiB
C
838 lines
21 KiB
C
/* $NetBSD: main.c,v 1.66 2010/03/11 01:32:59 christos Exp $ */
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/*-
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* Copyright (c) 1980, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95";
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#else
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__RCSID("$NetBSD: main.c,v 1.66 2010/03/11 01:32:59 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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#include <protocols/dumprestore.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fstab.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "dump.h"
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#include "pathnames.h"
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#include "snapshot.h"
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int timestamp; /* print message timestamps */
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int notify; /* notify operator flag */
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int blockswritten; /* number of blocks written on current tape */
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int tapeno; /* current tape number */
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int density; /* density in bytes/0.1" */
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int ntrec = NTREC; /* # tape blocks in each tape record */
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int cartridge; /* Assume non-cartridge tape */
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long dev_bsize = 1; /* recalculated below */
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long blocksperfile; /* output blocks per file */
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const char *host; /* remote host (if any) */
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int readcache = -1; /* read cache size (in readblksize blks) */
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int readblksize = 32 * 1024; /* read block size */
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char default_time_string[] = "%T %Z"; /* default timestamp string */
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char *time_string = default_time_string; /* timestamp string */
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int main(int, char *[]);
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static long numarg(const char *, long, long);
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static void obsolete(int *, char **[]);
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static void usage(void);
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int
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main(int argc, char *argv[])
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{
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ino_t ino;
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int dirty;
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union dinode *dp;
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struct fstab *dt;
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struct statvfs *mntinfo, fsbuf;
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char *map, *cp;
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int ch;
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int i, anydirskipped, bflag = 0, Tflag = 0, Fflag = 0, honorlevel = 1;
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int snap_internal = 0;
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ino_t maxino;
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time_t tnow, date;
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int dirc;
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char *mountpoint;
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int just_estimate = 0;
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char labelstr[LBLSIZE];
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char *new_time_format;
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char *snap_backup = NULL;
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spcl.c_date = 0;
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(void)time(&tnow);
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spcl.c_date = tnow;
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tzset(); /* set up timezone for strftime */
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if ((new_time_format = getenv("TIMEFORMAT")) != NULL)
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time_string = new_time_format;
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tsize = 0; /* Default later, based on 'c' option for cart tapes */
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if ((tape = getenv("TAPE")) == NULL)
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tape = _PATH_DEFTAPE;
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dumpdates = _PATH_DUMPDATES;
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temp = _PATH_DTMP;
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strcpy(labelstr, "none"); /* XXX safe strcpy. */
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if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
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quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
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level = '0';
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timestamp = 0;
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if (argc < 2)
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usage();
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obsolete(&argc, &argv);
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while ((ch = getopt(argc, argv,
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"0123456789aB:b:cd:eFf:h:ik:l:L:nr:s:StT:uWwx:X")) != -1)
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switch (ch) {
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/* dump level */
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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level = ch;
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break;
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case 'a': /* `auto-size', Write to EOM. */
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unlimited = 1;
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break;
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case 'B': /* blocks per output file */
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blocksperfile = numarg("blocks per file", 1L, 0L);
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break;
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case 'b': /* blocks per tape write */
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ntrec = numarg("blocks per write", 1L, 1000L);
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bflag = 1;
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break;
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case 'c': /* Tape is cart. not 9-track */
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cartridge = 1;
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break;
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case 'd': /* density, in bits per inch */
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density = numarg("density", 10L, 327670L) / 10;
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if (density >= 625 && !bflag)
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ntrec = HIGHDENSITYTREC;
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break;
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case 'e': /* eject full tapes */
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eflag = 1;
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break;
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case 'F': /* files-to-dump is an fs image */
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Fflag = 1;
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break;
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case 'f': /* output file */
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tape = optarg;
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break;
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case 'h':
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honorlevel = numarg("honor level", 0L, 10L);
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break;
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case 'i': /* "true incremental" regardless level */
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level = 'i';
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trueinc = 1;
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break;
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case 'k':
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readblksize = numarg("read block size", 0, 64) * 1024;
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break;
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case 'l': /* autoload after eject full tapes */
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eflag = 1;
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lflag = numarg("timeout (in seconds)", 1, 0);
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break;
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case 'L':
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/*
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* Note that although there are LBLSIZE characters,
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* the last must be '\0', so the limit on strlen()
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* is really LBLSIZE-1.
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*/
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if (strlcpy(labelstr, optarg, sizeof(labelstr))
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>= sizeof(labelstr)) {
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msg(
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"WARNING Label `%s' is larger than limit of %lu characters.\n",
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optarg,
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(unsigned long)sizeof(labelstr) - 1);
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msg("WARNING: Using truncated label `%s'.\n",
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labelstr);
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}
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break;
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case 'n': /* notify operators */
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notify = 1;
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break;
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case 'r': /* read cache size */
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readcache = numarg("read cache size", 0, 512);
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break;
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case 's': /* tape size, feet */
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tsize = numarg("tape size", 1L, 0L) * 12 * 10;
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break;
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case 'S': /* exit after estimating # of tapes */
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just_estimate = 1;
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break;
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case 't':
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timestamp = 1;
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break;
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case 'T': /* time of last dump */
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spcl.c_ddate = unctime(optarg);
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if (spcl.c_ddate < 0) {
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(void)fprintf(stderr, "bad time \"%s\"\n",
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optarg);
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exit(X_STARTUP);
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}
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Tflag = 1;
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lastlevel = '?';
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break;
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case 'u': /* update /etc/dumpdates */
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uflag = 1;
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break;
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case 'W': /* what to do */
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case 'w':
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lastdump(ch);
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exit(X_FINOK); /* do nothing else */
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case 'x':
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snap_backup = optarg;
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break;
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case 'X':
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snap_internal = 1;
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc < 1) {
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(void)fprintf(stderr,
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"Must specify disk or image, or file list\n");
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exit(X_STARTUP);
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}
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/*
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* determine if disk is a subdirectory, and setup appropriately
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*/
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getfstab(); /* /etc/fstab snarfed */
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disk = NULL;
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disk_dev = NULL;
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mountpoint = NULL;
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dirc = 0;
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for (i = 0; i < argc; i++) {
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struct stat sb;
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if (lstat(argv[i], &sb) == -1)
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quit("Cannot stat %s: %s\n", argv[i], strerror(errno));
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if (Fflag || S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) {
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disk = argv[i];
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multicheck:
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if (dirc != 0)
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quit(
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"Can't dump a disk or image at the same time as a file list\n");
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break;
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}
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if ((dt = fstabsearch(argv[i])) != NULL) {
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disk = dt->fs_spec;
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mountpoint = xstrdup(dt->fs_file);
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goto multicheck;
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}
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if (statvfs(argv[i], &fsbuf) == -1)
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quit("Cannot statvfs %s: %s\n", argv[i],
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strerror(errno));
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disk = fsbuf.f_mntfromname;
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if (strcmp(argv[i], fsbuf.f_mntonname) == 0)
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goto multicheck;
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if (mountpoint == NULL) {
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mountpoint = xstrdup(fsbuf.f_mntonname);
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if (uflag) {
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msg("Ignoring u flag for subdir dump\n");
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uflag = 0;
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}
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if (level > '0') {
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msg("Subdir dump is done at level 0\n");
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level = '0';
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}
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msg("Dumping sub files/directories from %s\n",
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mountpoint);
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} else {
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if (strcmp(mountpoint, fsbuf.f_mntonname) != 0)
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quit("%s is not on %s\n", argv[i], mountpoint);
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}
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msg("Dumping file/directory %s\n", argv[i]);
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dirc++;
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}
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if (mountpoint)
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free(mountpoint);
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if (dirc == 0) {
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argv++;
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if (argc != 1) {
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(void)fprintf(stderr, "Excess arguments to dump:");
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while (--argc)
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(void)fprintf(stderr, " %s", *argv++);
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(void)fprintf(stderr, "\n");
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exit(X_STARTUP);
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}
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}
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if (Tflag && uflag) {
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(void)fprintf(stderr,
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"You cannot use the T and u flags together.\n");
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exit(X_STARTUP);
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}
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if (strcmp(tape, "-") == 0) {
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pipeout++;
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tape = "standard output";
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}
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if (blocksperfile)
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blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
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else if (!unlimited) {
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/*
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* Determine how to default tape size and density
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*
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* density tape size
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* 9-track 1600 bpi (160 bytes/.1") 2300 ft.
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* 9-track 6250 bpi (625 bytes/.1") 2300 ft.
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* cartridge 8000 bpi (100 bytes/.1") 1700 ft.
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* (450*4 - slop)
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*/
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if (density == 0)
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density = cartridge ? 100 : 160;
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if (tsize == 0)
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tsize = cartridge ? 1700L*120L : 2300L*120L;
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}
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if ((cp = strchr(tape, ':')) != NULL) {
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host = tape;
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/* This is fine, because all the const strings don't have : */
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*cp++ = '\0';
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tape = cp;
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#ifdef RDUMP
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if (rmthost(host) == 0)
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exit(X_STARTUP);
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#else
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(void)fprintf(stderr, "remote dump not enabled\n");
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exit(X_STARTUP);
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#endif
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}
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if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
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signal(SIGHUP, sig);
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if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
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signal(SIGTRAP, sig);
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if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
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signal(SIGFPE, sig);
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if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
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signal(SIGBUS, sig);
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#if 0
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if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
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signal(SIGSEGV, sig);
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#endif
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if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
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signal(SIGTERM, sig);
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if (signal(SIGINT, interrupt) == SIG_IGN)
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signal(SIGINT, SIG_IGN);
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/*
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* disk can be either the full special file name, or
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* the file system name.
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*/
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mountpoint = NULL;
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mntinfo = mntinfosearch(disk);
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if ((dt = fstabsearch(disk)) != NULL) {
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disk = rawname(dt->fs_spec);
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mountpoint = dt->fs_file;
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msg("Found %s on %s in %s\n", disk, mountpoint, _PATH_FSTAB);
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} else if (mntinfo != NULL) {
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disk = rawname(mntinfo->f_mntfromname);
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mountpoint = mntinfo->f_mntonname;
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msg("Found %s on %s in mount table\n", disk, mountpoint);
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}
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if (mountpoint != NULL) {
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if (dirc != 0)
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(void)snprintf(spcl.c_filesys, sizeof(spcl.c_filesys),
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"a subset of %s", mountpoint);
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else
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(void)strlcpy(spcl.c_filesys, mountpoint,
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sizeof(spcl.c_filesys));
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} else if (Fflag) {
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(void)strlcpy(spcl.c_filesys, "a file system image",
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sizeof(spcl.c_filesys));
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} else {
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(void)strlcpy(spcl.c_filesys, "an unlisted file system",
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sizeof(spcl.c_filesys));
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}
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(void)strlcpy(spcl.c_dev, disk, sizeof(spcl.c_dev));
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(void)strlcpy(spcl.c_label, labelstr, sizeof(spcl.c_label));
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(void)gethostname(spcl.c_host, sizeof(spcl.c_host));
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spcl.c_host[sizeof(spcl.c_host) - 1] = '\0';
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if ((snap_backup != NULL || snap_internal) && mntinfo == NULL) {
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msg("WARNING: Cannot use -x or -X on unmounted file system.\n");
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snap_backup = NULL;
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snap_internal = 0;
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}
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#ifdef DUMP_LFS
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sync();
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if (snap_backup != NULL || snap_internal) {
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if (lfs_wrap_stop(mountpoint) < 0) {
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msg("Cannot stop writing on %s\n", mountpoint);
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exit(X_STARTUP);
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}
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}
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if ((diskfd = open(disk, O_RDONLY)) < 0) {
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msg("Cannot open %s\n", disk);
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exit(X_STARTUP);
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}
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disk_dev = disk;
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#else /* ! DUMP_LFS */
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if (snap_backup != NULL || snap_internal) {
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diskfd = snap_open(mntinfo->f_mntonname, snap_backup,
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&tnow, &disk_dev);
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if (diskfd < 0) {
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msg("Cannot open snapshot of %s\n",
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mntinfo->f_mntonname);
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exit(X_STARTUP);
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}
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spcl.c_date = tnow;
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} else {
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if ((diskfd = open(disk, O_RDONLY)) < 0) {
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msg("Cannot open %s\n", disk);
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exit(X_STARTUP);
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}
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disk_dev = disk;
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}
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sync();
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#endif /* ! DUMP_LFS */
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needswap = fs_read_sblock(sblock_buf);
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/* true incremental is always a level 10 dump */
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spcl.c_level = trueinc? iswap32(10): iswap32(level - '0');
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spcl.c_type = iswap32(TS_TAPE);
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spcl.c_date = iswap32(spcl.c_date);
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spcl.c_ddate = iswap32(spcl.c_ddate);
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if (!Tflag)
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getdumptime(); /* /etc/dumpdates snarfed */
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date = iswap32(spcl.c_date);
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msg("Date of this level %c dump: %s", level,
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spcl.c_date == 0 ? "the epoch\n" : ctime(&date));
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date = iswap32(spcl.c_ddate);
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msg("Date of last level %c dump: %s", lastlevel,
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spcl.c_ddate == 0 ? "the epoch\n" : ctime(&date));
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msg("Dumping ");
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if (snap_backup != NULL || snap_internal)
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msgtail("a snapshot of ");
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if (dirc != 0)
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msgtail("a subset of ");
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msgtail("%s (%s) ", disk, spcl.c_filesys);
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if (host)
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msgtail("to %s on host %s\n", tape, host);
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else
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msgtail("to %s\n", tape);
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msg("Label: %s\n", labelstr);
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ufsib = fs_parametrize();
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dev_bshift = ffs(dev_bsize) - 1;
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if (dev_bsize != (1 << dev_bshift))
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|
quit("dev_bsize (%ld) 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);
|
|
maxino = fs_maxino();
|
|
mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
|
|
usedinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char));
|
|
dumpdirmap = (char *)xcalloc((unsigned) mapsize, sizeof(char));
|
|
dumpinomap = (char *)xcalloc((unsigned) mapsize, sizeof(char));
|
|
tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
|
|
|
nonodump = iswap32(spcl.c_level) < honorlevel;
|
|
|
|
initcache(readcache, readblksize);
|
|
|
|
(void)signal(SIGINFO, statussig);
|
|
|
|
msg("mapping (Pass I) [regular files]\n");
|
|
anydirskipped = mapfiles(maxino, &tapesize, mountpoint,
|
|
(dirc ? argv : NULL));
|
|
|
|
msg("mapping (Pass II) [directories]\n");
|
|
while (anydirskipped) {
|
|
anydirskipped = mapdirs(maxino, &tapesize);
|
|
}
|
|
|
|
if (pipeout || unlimited) {
|
|
tapesize += 10; /* 10 trailer blocks */
|
|
msg("estimated %llu tape blocks.\n",
|
|
(unsigned long long)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 =
|
|
( (double) tapesize /* blocks */
|
|
* TP_BSIZE /* bytes/block */
|
|
* (1.0/density) /* 0.1" / byte */
|
|
+
|
|
(double) 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 %llu tape blocks on %3.2f tape(s).\n",
|
|
(unsigned long long)tapesize, fetapes);
|
|
}
|
|
/*
|
|
* If the user only wants an estimate of the number of
|
|
* tapes, exit now.
|
|
*/
|
|
if (just_estimate)
|
|
exit(X_FINOK);
|
|
|
|
/*
|
|
* 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));
|
|
xferrate = 0;
|
|
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 ((DIP(dp, 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 = DIP(dp, mode) & IFMT;
|
|
if (mode == IFDIR)
|
|
continue;
|
|
(void)dumpino(dp, ino);
|
|
}
|
|
|
|
spcl.c_type = iswap32(TS_END);
|
|
for (i = 0; i < ntrec; i++)
|
|
writeheader(maxino - 1);
|
|
if (pipeout)
|
|
msg("%d tape blocks\n",iswap32(spcl.c_tapea));
|
|
else
|
|
msg("%d tape blocks on %d volume%s\n",
|
|
iswap32(spcl.c_tapea), iswap32(spcl.c_volume),
|
|
(iswap32(spcl.c_volume) == 1) ? "" : "s");
|
|
tnow = do_stats();
|
|
date = iswap32(spcl.c_date);
|
|
msg("Date of this level %c dump: %s", level,
|
|
spcl.c_date == 0 ? "the epoch\n" : ctime(&date));
|
|
msg("Date this dump completed: %s", ctime(&tnow));
|
|
msg("Average transfer rate: %d KB/s\n", xferrate / tapeno);
|
|
putdumptime();
|
|
trewind(0);
|
|
broadcast("DUMP IS DONE!\a\a\n");
|
|
#ifdef DUMP_LFS
|
|
lfs_wrap_go();
|
|
#endif /* DUMP_LFS */
|
|
msg("DUMP IS DONE\n");
|
|
Exit(X_FINOK);
|
|
/* NOTREACHED */
|
|
exit(X_FINOK); /* XXX: to satisfy gcc */
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
const char *prog = getprogname();
|
|
|
|
(void)fprintf(stderr,
|
|
"usage: %s [-0123456789aceFnStuX] [-B records] [-b blocksize]\n"
|
|
" [-d density] [-f file] [-h level] [-k read-blocksize]\n"
|
|
" [-L label] [-l timeout] [-r read-cache] [-s feet]\n"
|
|
" [-T date] [-x snap-backup] files-to-dump\n"
|
|
" %s [-W | -w]\n", prog, prog);
|
|
exit(X_STARTUP);
|
|
}
|
|
|
|
/*
|
|
* 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(const char *meaning, long vmin, long vmax)
|
|
{
|
|
char *p;
|
|
long val;
|
|
|
|
val = strtol(optarg, &p, 10);
|
|
if (*p)
|
|
errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
|
|
if (val < vmin || (vmax && val > vmax))
|
|
errx(X_STARTUP, "%s must be between %ld and %ld",
|
|
meaning, vmin, vmax);
|
|
return (val);
|
|
}
|
|
|
|
void
|
|
sig(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 signal %s.\n", sys_siglist[signo]);
|
|
(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(char *cp)
|
|
{
|
|
static char rawbuf[MAXPATHLEN];
|
|
char *dp = strrchr(cp, '/');
|
|
|
|
if (dp == NULL)
|
|
return (NULL);
|
|
*dp = '\0';
|
|
(void)snprintf(rawbuf, sizeof rawbuf, "%s/r%s", cp, dp + 1);
|
|
*dp = '/';
|
|
return (rawbuf);
|
|
}
|
|
|
|
/*
|
|
* 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. */
|
|
*argvp = nargv = xmalloc((argc + 1) * sizeof(char *));
|
|
p = flagsp = xmalloc(strlen(ap) + 2);
|
|
|
|
*nargv++ = *argv;
|
|
argv += 2;
|
|
|
|
for (flags = 0; *ap; ++ap) {
|
|
switch (*ap) {
|
|
case 'B':
|
|
case 'b':
|
|
case 'd':
|
|
case 'f':
|
|
case 'h':
|
|
case 's':
|
|
case 'T':
|
|
case 'x':
|
|
if (*argv == NULL) {
|
|
warnx("option requires an argument -- %c", *ap);
|
|
usage();
|
|
}
|
|
nargv[0] = xmalloc(strlen(*argv) + 2 + 1);
|
|
nargv[0][0] = '-';
|
|
nargv[0][1] = *ap;
|
|
(void)strcpy(&nargv[0][2], *argv); /* XXX safe strcpy */
|
|
++argv;
|
|
++nargv;
|
|
break;
|
|
default:
|
|
if (!flags) {
|
|
*p++ = '-';
|
|
flags = 1;
|
|
}
|
|
*p++ = *ap;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Terminate flags. */
|
|
if (flags) {
|
|
*p = '\0';
|
|
*nargv++ = flagsp;
|
|
} else
|
|
free(flagsp);
|
|
|
|
/* Copy remaining arguments. */
|
|
while ((*nargv++ = *argv++) != NULL)
|
|
;
|
|
|
|
/* Update argument count. */
|
|
*argcp = nargv - *argvp - 1;
|
|
}
|
|
|
|
|
|
void *
|
|
xcalloc(size_t number, size_t size)
|
|
{
|
|
void *p;
|
|
|
|
p = calloc(number, size);
|
|
if (p == NULL)
|
|
quit("%s\n", strerror(errno));
|
|
return (p);
|
|
}
|
|
|
|
void *
|
|
xmalloc(size_t size)
|
|
{
|
|
void *p;
|
|
|
|
p = malloc(size);
|
|
if (p == NULL)
|
|
quit("%s\n", strerror(errno));
|
|
return (p);
|
|
}
|
|
|
|
char *
|
|
xstrdup(const char *str)
|
|
{
|
|
char *p;
|
|
|
|
p = strdup(str);
|
|
if (p == NULL)
|
|
quit("%s\n", strerror(errno));
|
|
return (p);
|
|
}
|