780 lines
20 KiB
C
780 lines
20 KiB
C
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/* $OpenBSD: main.c,v 1.63 2022/06/02 15:35:55 millert Exp $ */
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/* $NetBSD: main.c,v 1.14 1997/06/05 11:13:24 lukem 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/param.h> /* MAXBSIZE DEV_BSIZE roundup */
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#include <sys/disklabel.h>
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#include <sys/dkio.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ufs/dinode.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 <paths.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 <limits.h>
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#include <util.h>
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#include "dump.h"
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#include "pathnames.h"
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int mapsize; /* size of the state maps */
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char *usedinomap; /* map of allocated inodes */
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char *dumpdirmap; /* map of directories to be dumped */
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char *dumpinomap; /* map of files to be dumped */
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char *disk; /* name of the disk file */
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char *tape; /* name of the tape file */
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char level; /* dump level of this dump */
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int uflag; /* update flag */
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int diskfd; /* disk file descriptor */
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int pipeout; /* true => output to standard output */
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int density = 0; /* density in bytes/0.1" */
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int64_t tapesize; /* estimated tape size, blocks */
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int64_t tsize; /* tape size in 0.1" units */
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int etapes; /* estimated number of tapes */
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int nonodump; /* if set, do not honor UF_NODUMP user flags */
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int unlimited; /* if set, write to end of medium */
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int notify = 0; /* notify operator flag */
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int64_t blockswritten = 0; /* number of blocks written on current tape */
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int tapeno = 0; /* current tape number */
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int ntrec = NTREC; /* # tape blocks in each tape record */
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int64_t blocksperfile; /* output blocks per file */
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int cartridge = 0; /* Assume non-cartridge tape */
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char *host = NULL; /* remote host (if any) */
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time_t tstart_writing; /* when started writing the first tape block */
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long xferrate; /* averaged transfer rate of all volumes */
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struct fs *sblock; /* the file system super block */
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char sblock_buf[MAXBSIZE];
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int tp_bshift; /* log2(TP_BSIZE) */
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char *duid; /* duid of the disk being dumped */
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int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
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struct disklabel lab;
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/*
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* Possible superblock locations ordered from most to least likely.
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*/
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static int sblock_try[] = SBLOCKSEARCH;
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static long long numarg(char *, long long, 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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char *map;
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int ch, mode;
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struct tm then;
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struct statfs fsbuf;
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int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
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ino_t maxino;
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time_t t;
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int dirlist;
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char *toplevel, *str, *mount_point = NULL, *realpath;
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int just_estimate = 0;
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u_int64_t zero_uid = 0;
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spcl.c_date = (int64_t)time(NULL);
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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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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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if (argc < 2)
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usage();
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obsolete(&argc, &argv);
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while ((ch = getopt(argc, argv, "0123456789aB:b:cd:f:h:ns:ST:uWw")) != -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 'B': /* blocks per output file */
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blocksperfile = numarg("blocks per file", 1, 0);
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break;
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case 'b': /* blocks per tape write */
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ntrec = numarg("blocks per write", 1, 1000);
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if (ntrec > maxbsize/1024) {
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msg("Please choose a blocksize <= %dKB\n",
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maxbsize/1024);
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exit(X_STARTUP);
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}
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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", 10, 327670) / 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 '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", 0, 10);
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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 's': /* tape size, feet */
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tsize = numarg("tape size", 1, 0) * 12 * 10;
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break;
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case 'S': /* estimate blocks and # of tapes */
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just_estimate = 1;
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break;
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case 'T': /* time of last dump */
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str = strptime(optarg, "%a %b %e %H:%M:%S %Y", &then);
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then.tm_isdst = -1;
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if (str == NULL || (*str != '\n' && *str != '\0'))
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spcl.c_ddate = -1;
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else
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spcl.c_ddate = (int64_t)mktime(&then);
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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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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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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, "Must specify disk or filesystem\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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dirlist = 0;
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toplevel = NULL;
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for (i = 0; i < argc; i++) {
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struct stat sb;
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/* Convert potential duid into a device name */
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if ((diskfd = opendev(argv[i], O_RDONLY | O_NOFOLLOW, 0,
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&realpath)) >= 0) {
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argv[i] = strdup(realpath);
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if (argv[i] == NULL) {
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msg("Cannot malloc realpath\n");
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exit(X_STARTUP);
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}
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(void)close(diskfd);
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}
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if (lstat(argv[i], &sb) == -1) {
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msg("Cannot lstat %s: %s\n", argv[i], strerror(errno));
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exit(X_STARTUP);
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}
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if (!S_ISDIR(sb.st_mode) && !S_ISREG(sb.st_mode))
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break;
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if (statfs(argv[i], &fsbuf) == -1) {
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msg("Cannot statfs %s: %s\n", argv[i], strerror(errno));
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exit(X_STARTUP);
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}
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if (strcmp(argv[i], fsbuf.f_mntonname) == 0) {
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if (dirlist != 0) {
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msg("Can't dump a mountpoint and a filelist\n");
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exit(X_STARTUP);
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}
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break; /* exit if sole mountpoint */
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}
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if (!disk) {
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if ((toplevel = strdup(fsbuf.f_mntonname)) == NULL) {
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msg("Cannot malloc diskname\n");
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exit(X_STARTUP);
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}
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disk = toplevel;
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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", disk);
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} else {
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if (strcmp(disk, fsbuf.f_mntonname) != 0) {
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msg("%s is not on %s\n", argv[i], disk);
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exit(X_STARTUP);
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}
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}
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msg("Dumping file/directory %s\n", argv[i]);
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dirlist++;
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}
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if (dirlist == 0) {
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disk = *argv++;
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if (argc != 1) {
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(void)fputs("Excess arguments to dump:", stderr);
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while (--argc) {
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(void)putc(' ', stderr);
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(void)fputs(*argv++, stderr);
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}
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(void)putc('\n', stderr);
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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 (800 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 (strchr(tape, ':')) {
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host = tape;
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tape = strchr(host, ':');
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*tape++ = '\0';
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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(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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getfstab(); /* /etc/fstab snarfed */
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/*
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* disk can be either the full special file name,
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* the suffix of the special file name,
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* the special name missing the leading '/',
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* the file system name with or without the leading '/'.
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*/
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if (!statfs(disk, &fsbuf) && !strcmp(fsbuf.f_mntonname, disk)) {
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/* mounted disk? */
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disk = rawname(fsbuf.f_mntfromname);
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if (!disk) {
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(void)fprintf(stderr, "cannot get raw name for %s\n",
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fsbuf.f_mntfromname);
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exit(X_STARTUP);
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}
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mount_point = fsbuf.f_mntonname;
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(void)strlcpy(spcl.c_dev, fsbuf.f_mntfromname,
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sizeof(spcl.c_dev));
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if (dirlist != 0) {
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(void)snprintf(spcl.c_filesys, sizeof(spcl.c_filesys),
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"a subset of %s", mount_point);
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} else {
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(void)strlcpy(spcl.c_filesys, mount_point,
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sizeof(spcl.c_filesys));
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}
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} else if ((dt = fstabsearch(disk)) != NULL) {
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/* in fstab? */
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if (strchr(dt->fs_spec, '/')) {
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/* fs_spec is a /dev/something */
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disk = rawname(dt->fs_spec);
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} else {
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/* fs_spec is a DUID */
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disk = rawname(disk);
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}
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mount_point = dt->fs_file;
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(void)strlcpy(spcl.c_dev, dt->fs_spec, sizeof(spcl.c_dev));
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if (dirlist != 0) {
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(void)snprintf(spcl.c_filesys, sizeof(spcl.c_filesys),
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"a subset of %s", mount_point);
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} else {
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(void)strlcpy(spcl.c_filesys, mount_point,
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sizeof(spcl.c_filesys));
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}
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} else {
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/* must be a device */
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(void)strlcpy(spcl.c_dev, disk, sizeof(spcl.c_dev));
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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_label, "none", sizeof(spcl.c_label));
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(void)gethostname(spcl.c_host, sizeof(spcl.c_host));
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spcl.c_level = level - '0';
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spcl.c_type = TS_TAPE;
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if ((diskfd = open(disk, O_RDONLY)) == -1) {
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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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if (ioctl(diskfd, DIOCGDINFO, (char *)&lab) == -1)
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err(1, "ioctl (DIOCGDINFO)");
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if (memcmp(lab.d_uid, &zero_uid, sizeof(lab.d_uid)) != 0) {
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if (asprintf(&duid,
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||
|
"%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx.%c",
|
||
|
lab.d_uid[0], lab.d_uid[1], lab.d_uid[2], lab.d_uid[3],
|
||
|
lab.d_uid[4], lab.d_uid[5], lab.d_uid[6], lab.d_uid[7],
|
||
|
disk[strlen(disk)-1]) == -1) {
|
||
|
msg("Cannot malloc duid\n");
|
||
|
exit(X_STARTUP);
|
||
|
}
|
||
|
}
|
||
|
if (!Tflag)
|
||
|
getdumptime(); /* /etc/dumpdates snarfed */
|
||
|
|
||
|
t = (time_t)spcl.c_date;
|
||
|
msg("Date of this level %c dump: %s", level,
|
||
|
t == 0 ? "the epoch\n" : ctime(&t));
|
||
|
t = (time_t)spcl.c_ddate;
|
||
|
msg("Date of last level %c dump: %s", lastlevel,
|
||
|
t == 0 ? "the epoch\n" : ctime(&t));
|
||
|
msg("Dumping %s ", disk);
|
||
|
if (mount_point != NULL)
|
||
|
msgtail("(%s) ", mount_point);
|
||
|
if (host)
|
||
|
msgtail("to %s on host %s\n", tape, host);
|
||
|
else
|
||
|
msgtail("to %s\n", tape);
|
||
|
|
||
|
if (ioctl(diskfd, DIOCGPDINFO, (char *)&lab) == -1)
|
||
|
err(1, "ioctl (DIOCGPDINFO)");
|
||
|
sync();
|
||
|
sblock = (struct fs *)sblock_buf;
|
||
|
for (i = 0; sblock_try[i] != -1; i++) {
|
||
|
ssize_t n = pread(diskfd, sblock, SBLOCKSIZE,
|
||
|
(off_t)sblock_try[i]);
|
||
|
if (n == SBLOCKSIZE && (sblock->fs_magic == FS_UFS1_MAGIC ||
|
||
|
(sblock->fs_magic == FS_UFS2_MAGIC &&
|
||
|
sblock->fs_sblockloc == sblock_try[i])) &&
|
||
|
sblock->fs_bsize <= MAXBSIZE &&
|
||
|
sblock->fs_bsize >= sizeof(struct fs))
|
||
|
break;
|
||
|
}
|
||
|
if (sblock_try[i] == -1)
|
||
|
quit("Cannot find filesystem superblock\n");
|
||
|
tp_bshift = ffs(TP_BSIZE) - 1;
|
||
|
if (TP_BSIZE != (1 << tp_bshift))
|
||
|
quit("TP_BSIZE (%d) is not a power of 2\n", TP_BSIZE);
|
||
|
#ifdef FS_44INODEFMT
|
||
|
if (sblock->fs_magic == FS_UFS2_MAGIC ||
|
||
|
sblock->fs_inodefmt >= FS_44INODEFMT)
|
||
|
spcl.c_flags |= DR_NEWINODEFMT;
|
||
|
#endif
|
||
|
maxino = (ino_t)sblock->fs_ipg * sblock->fs_ncg;
|
||
|
mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
|
||
|
usedinomap = calloc((unsigned) mapsize, sizeof(char));
|
||
|
dumpdirmap = calloc((unsigned) mapsize, sizeof(char));
|
||
|
dumpinomap = calloc((unsigned) mapsize, sizeof(char));
|
||
|
tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
||
|
|
||
|
nonodump = spcl.c_level < honorlevel;
|
||
|
|
||
|
(void)signal(SIGINFO, statussig);
|
||
|
|
||
|
msg("mapping (Pass I) [regular files]\n");
|
||
|
anydirskipped = mapfiles(maxino, &tapesize, toplevel,
|
||
|
(dirlist ? argv : NULL));
|
||
|
|
||
|
msg("mapping (Pass II) [directories]\n");
|
||
|
while (anydirskipped) {
|
||
|
anydirskipped = mapdirs(maxino, &tapesize);
|
||
|
}
|
||
|
|
||
|
if (pipeout || unlimited) {
|
||
|
tapesize += 10; /* 10 trailer blocks */
|
||
|
msg("estimated %lld 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 %lld tape blocks on %3.2f tape(s).\n",
|
||
|
tapesize, fetapes);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Exit if user wants an estimate of blocks and # of tapes only.
|
||
|
*/
|
||
|
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(&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, &mode);
|
||
|
if (mode != IFDIR)
|
||
|
continue;
|
||
|
(void)dumpino(dp, ino);
|
||
|
}
|
||
|
|
||
|
msg("dumping (Pass IV) [regular files]\n");
|
||
|
for (map = dumpinomap, 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 inodes deleted and reallocated as directories.
|
||
|
*/
|
||
|
dp = getino(ino, &mode);
|
||
|
if (mode == IFDIR)
|
||
|
continue;
|
||
|
(void)dumpino(dp, ino);
|
||
|
}
|
||
|
|
||
|
spcl.c_type = TS_END;
|
||
|
for (i = 0; i < ntrec; i++)
|
||
|
writeheader(maxino - 1);
|
||
|
if (pipeout)
|
||
|
msg("%lld tape blocks\n", spcl.c_tapea);
|
||
|
else
|
||
|
msg("%lld tape blocks on %d volume%s\n",
|
||
|
spcl.c_tapea, spcl.c_volume,
|
||
|
(spcl.c_volume == 1) ? "" : "s");
|
||
|
t = (time_t)spcl.c_date;
|
||
|
msg("Date of this level %c dump: %s", level,
|
||
|
t == 0 ? "the epoch\n" : ctime(&t));
|
||
|
t = do_stats();
|
||
|
msg("Date this dump completed: %s", ctime(&t));
|
||
|
msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno);
|
||
|
putdumptime();
|
||
|
trewind();
|
||
|
broadcast("DUMP IS DONE!\7\7\n");
|
||
|
msg("DUMP IS DONE\n");
|
||
|
Exit(X_FINOK);
|
||
|
/* NOTREACHED */
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
usage(void)
|
||
|
{
|
||
|
extern char *__progname;
|
||
|
|
||
|
(void)fprintf(stderr, "usage: %s [-0123456789acnSuWw] [-B records] "
|
||
|
"[-b blocksize] [-d density]\n"
|
||
|
"\t[-f file] [-h level] [-s feet] "
|
||
|
"[-T date] files-to-dump\n",
|
||
|
__progname);
|
||
|
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 long
|
||
|
numarg(char *meaning, long long vmin, long long vmax)
|
||
|
{
|
||
|
long long val;
|
||
|
const char *errstr;
|
||
|
|
||
|
if (vmax == 0)
|
||
|
vmax = LLONG_MAX;
|
||
|
val = strtonum(optarg, vmin, vmax, &errstr);
|
||
|
if (errstr)
|
||
|
errx(X_STARTUP, "%s is %s [%lld - %lld]",
|
||
|
meaning, errstr, vmin, vmax);
|
||
|
|
||
|
return (val);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
sig(int signo)
|
||
|
{
|
||
|
switch(signo) {
|
||
|
case SIGALRM:
|
||
|
case SIGHUP:
|
||
|
case SIGTERM:
|
||
|
/* XXX signal race */
|
||
|
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 */
|
||
|
}
|
||
|
}
|
||
|
|
||
|
char *
|
||
|
rawname(char *cp)
|
||
|
{
|
||
|
static char rawbuf[PATH_MAX];
|
||
|
char *dp = strrchr(cp, '/');
|
||
|
char *prefix;
|
||
|
|
||
|
if (dp == NULL)
|
||
|
return (NULL);
|
||
|
prefix = dp[1] == 'r' ? "" : "r";
|
||
|
*dp = '\0';
|
||
|
(void)snprintf(rawbuf, sizeof(rawbuf), "%s/%s%s", cp, prefix, dp + 1);
|
||
|
*dp = '/';
|
||
|
return (rawbuf);
|
||
|
}
|
||
|
|
||
|
char *
|
||
|
getduid(char *path)
|
||
|
{
|
||
|
int fd;
|
||
|
struct disklabel lab;
|
||
|
u_int64_t zero_uid = 0;
|
||
|
char *duid;
|
||
|
|
||
|
if ((fd = opendev(path, O_RDONLY | O_NOFOLLOW, 0, NULL)) >= 0) {
|
||
|
if (ioctl(fd, DIOCGDINFO, (char *)&lab) == -1) {
|
||
|
close(fd);
|
||
|
warn("ioctl(DIOCGDINFO)");
|
||
|
return (NULL);
|
||
|
}
|
||
|
close(fd);
|
||
|
|
||
|
if (memcmp(lab.d_uid, &zero_uid, sizeof(lab.d_uid)) != 0) {
|
||
|
if (asprintf(&duid,
|
||
|
"%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx.%c",
|
||
|
lab.d_uid[0], lab.d_uid[1], lab.d_uid[2],
|
||
|
lab.d_uid[3], lab.d_uid[4], lab.d_uid[5],
|
||
|
lab.d_uid[6], lab.d_uid[7],
|
||
|
path[strlen(path)-1]) == -1) {
|
||
|
warn("Cannot malloc duid");
|
||
|
return (NULL);
|
||
|
}
|
||
|
return (duid);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return (NULL);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* 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;
|
||
|
size_t len;
|
||
|
|
||
|
/* Setup. */
|
||
|
argv = *argvp;
|
||
|
argc = *argcp;
|
||
|
|
||
|
/* Return if no args or first argument has leading dash or a slash. */
|
||
|
ap = argv[1];
|
||
|
if (argc == 1 || *ap == '-' || strchr(ap, '/') != NULL)
|
||
|
return;
|
||
|
|
||
|
/* Allocate space for new arguments. */
|
||
|
if ((*argvp = nargv = calloc(argc + 1, sizeof(char *))) == NULL ||
|
||
|
(p = flagsp = malloc(strlen(ap) + 2)) == NULL)
|
||
|
err(1, NULL);
|
||
|
|
||
|
*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':
|
||
|
if (*argv == NULL) {
|
||
|
warnx("option requires an argument -- %c", *ap);
|
||
|
usage();
|
||
|
}
|
||
|
len = 2 + strlen(*argv) + 1;
|
||
|
if ((nargv[0] = malloc(len)) == NULL)
|
||
|
err(1, NULL);
|
||
|
nargv[0][0] = '-';
|
||
|
nargv[0][1] = *ap;
|
||
|
(void)strlcpy(&nargv[0][2], *argv, len - 2);
|
||
|
++argv;
|
||
|
++nargv;
|
||
|
break;
|
||
|
default:
|
||
|
if (!flags) {
|
||
|
*p++ = '-';
|
||
|
flags = 1;
|
||
|
}
|
||
|
*p++ = *ap;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Terminate flags, or toss the buffer we did not use. */
|
||
|
if (flags) {
|
||
|
*p = '\0';
|
||
|
*nargv++ = flagsp;
|
||
|
} else
|
||
|
free(flagsp);
|
||
|
|
||
|
/* Copy remaining arguments. */
|
||
|
while ((*nargv++ = *argv++))
|
||
|
continue;
|
||
|
|
||
|
/* Update argument count. */
|
||
|
*argcp = nargv - *argvp - 1;
|
||
|
}
|