1133 lines
27 KiB
C
1133 lines
27 KiB
C
/* $NetBSD: xinstall.c,v 1.86 2004/02/02 23:25:36 lukem Exp $ */
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/*
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* Copyright (c) 1987, 1993
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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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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#else
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#define HAVE_FUTIMES 1
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#define HAVE_STRUCT_STAT_ST_FLAGS 1
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#endif
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#include <sys/cdefs.h>
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#if defined(__COPYRIGHT) && !defined(lint)
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__COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#if defined(__RCSID) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93";
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#else
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__RCSID("$NetBSD: xinstall.c,v 1.86 2004/02/02 23:25:36 lukem 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/mman.h>
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#include <sys/stat.h>
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#include <sys/wait.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 <grp.h>
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#include <libgen.h>
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#include <paths.h>
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#include <pwd.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 <unistd.h>
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#include <vis.h>
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#include <md5.h>
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#include <rmd160.h>
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#include <sha1.h>
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#include "pathnames.h"
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#include "stat_flags.h"
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#include "mtree.h"
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#define STRIP_ARGS_MAX 32
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#define BACKUP_SUFFIX ".old"
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int dobackup, dodir, dostrip, dolink, dopreserve, dorename, dounpriv;
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int numberedbackup;
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int mode = S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
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char pathbuf[MAXPATHLEN];
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id_t uid = -1, gid = -1;
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char *group, *owner, *fflags, *tags;
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FILE *metafp;
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char *metafile;
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u_long fileflags;
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char *stripArgs;
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char *afterinstallcmd;
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char *suffix = BACKUP_SUFFIX;
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char *destdir;
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enum {
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DIGEST_NONE = 0,
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DIGEST_MD5,
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DIGEST_RMD160,
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DIGEST_SHA1,
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} digesttype = DIGEST_NONE;
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char *digest;
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#define LN_ABSOLUTE 0x01
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#define LN_RELATIVE 0x02
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#define LN_HARD 0x04
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#define LN_SYMBOLIC 0x08
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#define LN_MIXED 0x10
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#define DIRECTORY 0x01 /* Tell install it's a directory. */
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#define SETFLAGS 0x02 /* Tell install to set flags. */
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#define HASUID 0x04 /* Tell install the uid was given */
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#define HASGID 0x08 /* Tell install the gid was given */
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void afterinstall(const char *, const char *, int);
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void backup(const char *);
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char *copy(int, char *, int, char *, off_t);
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int do_link(char *, char *);
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void do_symlink(char *, char *);
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void install(char *, char *, u_int);
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void install_dir(char *, u_int);
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int main(int, char *[]);
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void makelink(char *, char *);
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void metadata_log(const char *, const char *, struct timeval *,
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const char *, const char *);
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int parseid(char *, id_t *);
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void strip(char *);
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void usage(void);
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char *xbasename(char *);
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char *xdirname(char *);
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int
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main(int argc, char *argv[])
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{
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struct stat from_sb, to_sb;
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void *set;
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u_int iflags;
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int ch, no_target;
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char *p, *to_name;
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setprogname(argv[0]);
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iflags = 0;
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while ((ch = getopt(argc, argv, "a:cbB:dD:f:g:h:l:m:M:N:o:prsS:T:U"))
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!= -1)
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switch((char)ch) {
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case 'a':
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afterinstallcmd = strdup(optarg);
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if (afterinstallcmd == NULL)
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errx(1, "%s", strerror(ENOMEM));
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break;
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case 'B':
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suffix = optarg;
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numberedbackup = 0;
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{
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/* Check if given suffix really generates
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different suffixes - catch e.g. ".%" */
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char suffix_expanded0[FILENAME_MAX],
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suffix_expanded1[FILENAME_MAX];
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(void)snprintf(suffix_expanded0, FILENAME_MAX,
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suffix, 0);
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(void)snprintf(suffix_expanded1, FILENAME_MAX,
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suffix, 1);
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if (strcmp(suffix_expanded0, suffix_expanded1)
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!= 0)
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numberedbackup = 1;
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}
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/* fall through; -B implies -b */
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/*FALLTHROUGH*/
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case 'b':
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dobackup = 1;
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break;
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case 'c':
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/* ignored; was "docopy" which is now the default. */
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break;
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case 'd':
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dodir = 1;
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break;
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case 'D':
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destdir = optarg;
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break;
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#if ! HAVE_NBTOOL_CONFIG_H
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case 'f':
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fflags = optarg;
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break;
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#endif
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case 'g':
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group = optarg;
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break;
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case 'h':
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digest = optarg;
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break;
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case 'l':
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for (p = optarg; *p; p++)
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switch (*p) {
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case 's':
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dolink &= ~(LN_HARD|LN_MIXED);
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dolink |= LN_SYMBOLIC;
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break;
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case 'h':
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dolink &= ~(LN_SYMBOLIC|LN_MIXED);
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dolink |= LN_HARD;
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break;
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case 'm':
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dolink &= ~(LN_SYMBOLIC|LN_HARD);
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dolink |= LN_MIXED;
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break;
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case 'a':
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dolink &= ~LN_RELATIVE;
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dolink |= LN_ABSOLUTE;
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break;
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case 'r':
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dolink &= ~LN_ABSOLUTE;
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dolink |= LN_RELATIVE;
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break;
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default:
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errx(1, "%c: invalid link type", *p);
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/* NOTREACHED */
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}
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break;
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case 'm':
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if (!(set = setmode(optarg)))
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errx(1, "%s: invalid file mode", optarg);
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mode = getmode(set, 0);
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free(set);
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break;
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case 'M':
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metafile = optarg;
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break;
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case 'N':
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if (! setup_getid(optarg))
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errx(1,
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"Unable to use user and group databases in `%s'",
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optarg);
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break;
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case 'o':
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owner = optarg;
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break;
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case 'p':
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dopreserve = 1;
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break;
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case 'r':
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dorename = 1;
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break;
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case 'S':
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stripArgs = strdup(optarg);
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if (stripArgs == NULL)
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errx(1, "%s", strerror(ENOMEM));
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/* fall through; -S implies -s */
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/*FALLTHROUGH*/
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case 's':
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dostrip = 1;
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break;
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case 'T':
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tags = optarg;
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break;
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case 'U':
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dounpriv = 1;
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break;
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case '?':
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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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/* strip and link options make no sense when creating directories */
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if ((dostrip || dolink) && dodir)
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usage();
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/* strip and flags make no sense with links */
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if ((dostrip || fflags) && dolink)
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usage();
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/* must have at least two arguments, except when creating directories */
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if (argc < 2 && !dodir)
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usage();
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if (digest) {
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if (0) {
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} else if (strcmp(digest, "none") == 0) {
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digesttype = DIGEST_NONE;
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} else if (strcmp(digest, "md5") == 0) {
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digesttype = DIGEST_MD5;
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} else if (strcmp(digest, "rmd160") == 0) {
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digesttype = DIGEST_RMD160;
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} else if (strcmp(digest, "sha1") == 0) {
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digesttype = DIGEST_SHA1;
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} else {
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warnx("unknown digest `%s'", digest);
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usage();
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}
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}
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/* get group and owner id's */
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if (group && !dounpriv) {
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if (gid_from_group(group, &gid) == -1 && ! parseid(group, &gid))
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errx(1, "unknown group %s", group);
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iflags |= HASGID;
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}
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if (owner && !dounpriv) {
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if (uid_from_user(owner, &uid) == -1 && ! parseid(owner, &uid))
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errx(1, "unknown user %s", owner);
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iflags |= HASUID;
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}
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#if ! HAVE_NBTOOL_CONFIG_H
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if (fflags && !dounpriv) {
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if (string_to_flags(&fflags, &fileflags, NULL))
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errx(1, "%s: invalid flag", fflags);
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iflags |= SETFLAGS;
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}
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#endif
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if (metafile) {
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if ((metafp = fopen(metafile, "a")) == NULL)
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warn("open %s", metafile);
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} else
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digesttype = DIGEST_NONE;
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if (dodir) {
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for (; *argv != NULL; ++argv)
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install_dir(*argv, iflags);
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exit (0);
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}
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no_target = stat(to_name = argv[argc - 1], &to_sb);
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if (!no_target && S_ISDIR(to_sb.st_mode)) {
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for (; *argv != to_name; ++argv)
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install(*argv, to_name, iflags | DIRECTORY);
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exit(0);
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}
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/* can't do file1 file2 directory/file */
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if (argc != 2)
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usage();
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if (!no_target) {
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/* makelink() handles checks for links */
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if (!dolink) {
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if (stat(*argv, &from_sb))
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err(1, "%s: stat", *argv);
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if (!S_ISREG(to_sb.st_mode))
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errx(1, "%s: not a regular file", to_name);
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if (to_sb.st_dev == from_sb.st_dev &&
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to_sb.st_ino == from_sb.st_ino)
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errx(1, "%s and %s are the same file", *argv,
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to_name);
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}
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/*
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* Unlink now... avoid ETXTBSY errors later. Try and turn
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* off the append/immutable bits -- if we fail, go ahead,
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* it might work.
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*/
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#if ! HAVE_NBTOOL_CONFIG_H
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#define NOCHANGEBITS (UF_IMMUTABLE | UF_APPEND | SF_IMMUTABLE | SF_APPEND)
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if (to_sb.st_flags & NOCHANGEBITS)
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(void)chflags(to_name,
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to_sb.st_flags & ~(NOCHANGEBITS));
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#endif
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if (dobackup)
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backup(to_name);
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else if (!dorename)
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(void)unlink(to_name);
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}
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install(*argv, to_name, iflags);
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exit(0);
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}
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/*
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* parseid --
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* parse uid or gid from arg into id, returning non-zero if successful
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*/
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int
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parseid(char *name, id_t *id)
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{
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char *ep;
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errno = 0;
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*id = (id_t)strtoul(name, &ep, 10);
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if (errno || *ep != '\0')
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return (0);
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return (1);
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}
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/*
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* do_link --
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* make a hard link, obeying dorename if set
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* return -1 on failure
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*/
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int
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do_link(char *from_name, char *to_name)
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{
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char tmpl[MAXPATHLEN];
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int ret;
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if (dorename) {
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(void)snprintf(tmpl, sizeof(tmpl), "%s/inst.XXXXXX",
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xdirname(to_name));
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/* This usage is safe. The linker will bitch anyway. */
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if (mktemp(tmpl) == NULL)
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err(1, "%s: mktemp", tmpl);
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ret = link(from_name, tmpl);
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if (ret == 0) {
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ret = rename(tmpl, to_name);
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if (ret < 0)
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/* remove temporary link before exiting */
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(void)unlink(tmpl);
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}
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return (ret);
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} else
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return (link(from_name, to_name));
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}
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/*
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* do_symlink --
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* make a symbolic link, obeying dorename if set
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* exit on failure
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*/
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void
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do_symlink(char *from_name, char *to_name)
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{
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char tmpl[MAXPATHLEN];
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if (dorename) {
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(void)snprintf(tmpl, sizeof(tmpl), "%s/inst.XXXXXX",
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xdirname(to_name));
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/* This usage is safe. The linker will bitch anyway. */
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if (mktemp(tmpl) == NULL)
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err(1, "%s: mktemp", tmpl);
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if (symlink(from_name, tmpl) == -1)
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err(1, "symlink %s -> %s", from_name, tmpl);
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if (rename(tmpl, to_name) == -1) {
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/* remove temporary link before exiting */
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(void)unlink(tmpl);
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err(1, "%s: rename", to_name);
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}
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} else {
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if (symlink(from_name, to_name) == -1)
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err(1, "symlink %s -> %s", from_name, to_name);
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}
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}
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/*
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* makelink --
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* make a link from source to destination
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*/
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void
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makelink(char *from_name, char *to_name)
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{
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char src[MAXPATHLEN], dst[MAXPATHLEN], lnk[MAXPATHLEN];
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struct stat to_sb;
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/* Try hard links first */
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if (dolink & (LN_HARD|LN_MIXED)) {
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if (do_link(from_name, to_name) == -1) {
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if ((dolink & LN_HARD) || errno != EXDEV)
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err(1, "link %s -> %s", from_name, to_name);
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} else {
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if (stat(to_name, &to_sb))
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err(1, "%s: stat", to_name);
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if (S_ISREG(to_sb.st_mode)) {
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/* XXX: only metalog hardlinked files */
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int omode;
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char *oowner, *ogroup, *offlags;
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char *dres;
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/* XXX: use underlying perms */
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omode = mode;
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mode = (to_sb.st_mode & 0777);
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oowner = owner;
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owner = NULL;
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ogroup = group;
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group = NULL;
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offlags = fflags;
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fflags = NULL;
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switch (digesttype) {
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case DIGEST_MD5:
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dres = MD5File(from_name, NULL);
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break;
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case DIGEST_RMD160:
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dres = RMD160File(from_name, NULL);
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break;
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case DIGEST_SHA1:
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dres = SHA1File(from_name, NULL);
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break;
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default:
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dres = NULL;
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}
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metadata_log(to_name, "file", NULL, NULL, dres);
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free(dres);
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mode = omode;
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owner = oowner;
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group = ogroup;
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fflags = offlags;
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}
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return;
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}
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}
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|
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/* Symbolic links */
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if (dolink & LN_ABSOLUTE) {
|
|
/* Convert source path to absolute */
|
|
if (realpath(from_name, src) == NULL)
|
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err(1, "%s: realpath", from_name);
|
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do_symlink(src, to_name);
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metadata_log(to_name, "link", NULL, src, NULL);
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return;
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}
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if (dolink & LN_RELATIVE) {
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char *cp, *d, *s;
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/* Resolve pathnames */
|
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if (realpath(from_name, src) == NULL)
|
|
err(1, "%s: realpath", from_name);
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|
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/*
|
|
* The last component of to_name may be a symlink,
|
|
* so use realpath to resolve only the directory.
|
|
*/
|
|
cp = xdirname(to_name);
|
|
if (realpath(cp, dst) == NULL)
|
|
err(1, "%s: realpath", cp);
|
|
/* .. and add the last component */
|
|
if (strcmp(dst, "/") != 0) {
|
|
if (strlcat(dst, "/", sizeof(dst)) > sizeof(dst))
|
|
errx(1, "resolved pathname too long");
|
|
}
|
|
cp = xbasename(to_name);
|
|
if (strlcat(dst, cp, sizeof(dst)) > sizeof(dst))
|
|
errx(1, "resolved pathname too long");
|
|
|
|
/* trim common path components */
|
|
for (s = src, d = dst; *s == *d; s++, d++)
|
|
continue;
|
|
while (*s != '/')
|
|
s--, d--;
|
|
|
|
/* count the number of directories we need to backtrack */
|
|
for (++d, lnk[0] = '\0'; *d; d++)
|
|
if (*d == '/')
|
|
(void)strlcat(lnk, "../", sizeof(lnk));
|
|
|
|
(void)strlcat(lnk, ++s, sizeof(lnk));
|
|
|
|
do_symlink(lnk, dst);
|
|
metadata_log(dst, "link", NULL, lnk, NULL);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If absolute or relative was not specified,
|
|
* try the names the user provided
|
|
*/
|
|
do_symlink(from_name, to_name);
|
|
metadata_log(to_name, "link", NULL, from_name, NULL);
|
|
}
|
|
|
|
/*
|
|
* install --
|
|
* build a path name and install the file
|
|
*/
|
|
void
|
|
install(char *from_name, char *to_name, u_int flags)
|
|
{
|
|
struct stat from_sb;
|
|
#if ! HAVE_NBTOOL_CONFIG_H
|
|
struct stat to_sb;
|
|
#endif
|
|
struct timeval tv[2];
|
|
int devnull, from_fd, to_fd, serrno, tmpmode;
|
|
char *p, tmpl[MAXPATHLEN], *oto_name, *digestresult;
|
|
|
|
if (!dolink) {
|
|
/* ensure that from_sb & tv are sane if !dolink */
|
|
if (stat(from_name, &from_sb))
|
|
err(1, "%s: stat", from_name);
|
|
#ifdef BSD4_4
|
|
TIMESPEC_TO_TIMEVAL(&tv[0], &from_sb.st_atimespec);
|
|
TIMESPEC_TO_TIMEVAL(&tv[1], &from_sb.st_mtimespec);
|
|
#else
|
|
tv[0].tv_sec = from_sb.st_atime;
|
|
tv[0].tv_usec = 0;
|
|
tv[1].tv_sec = from_sb.st_mtime;
|
|
tv[1].tv_usec = 0;
|
|
#endif
|
|
}
|
|
|
|
if (flags & DIRECTORY || strcmp(from_name, _PATH_DEVNULL)) {
|
|
if (!dolink) {
|
|
if (!S_ISREG(from_sb.st_mode))
|
|
errx(1, "%s: not a regular file", from_name);
|
|
}
|
|
/* Build the target path. */
|
|
if (flags & DIRECTORY) {
|
|
(void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s",
|
|
to_name,
|
|
(p = strrchr(from_name, '/')) ? ++p : from_name);
|
|
to_name = pathbuf;
|
|
}
|
|
devnull = 0;
|
|
} else {
|
|
#if HAVE_STRUCT_STAT_ST_FLAGS
|
|
from_sb.st_flags = 0; /* XXX */
|
|
#endif
|
|
devnull = 1;
|
|
}
|
|
|
|
/*
|
|
* Unlink now... avoid ETXTBSY errors later. Try and turn
|
|
* off the append/immutable bits -- if we fail, go ahead,
|
|
* it might work.
|
|
*/
|
|
#if ! HAVE_NBTOOL_CONFIG_H
|
|
if (stat(to_name, &to_sb) == 0 &&
|
|
to_sb.st_flags & (NOCHANGEBITS))
|
|
(void)chflags(to_name, to_sb.st_flags & ~(NOCHANGEBITS));
|
|
#endif
|
|
if (dorename) {
|
|
(void)snprintf(tmpl, sizeof(tmpl), "%s/inst.XXXXXX",
|
|
xdirname(to_name));
|
|
oto_name = to_name;
|
|
to_name = tmpl;
|
|
} else {
|
|
oto_name = NULL; /* pacify gcc */
|
|
if (dobackup)
|
|
backup(to_name);
|
|
else
|
|
(void)unlink(to_name);
|
|
}
|
|
|
|
if (dolink) {
|
|
makelink(from_name, dorename ? oto_name : to_name);
|
|
return;
|
|
}
|
|
|
|
/* Create target. */
|
|
if (dorename) {
|
|
if ((to_fd = mkstemp(to_name)) == -1)
|
|
err(1, "%s: mkstemp", to_name);
|
|
} else {
|
|
if ((to_fd = open(to_name,
|
|
O_CREAT | O_WRONLY | O_TRUNC, S_IRUSR | S_IWUSR)) < 0)
|
|
err(1, "%s: open", to_name);
|
|
}
|
|
digestresult = NULL;
|
|
if (!devnull) {
|
|
if ((from_fd = open(from_name, O_RDONLY, 0)) < 0) {
|
|
(void)unlink(to_name);
|
|
err(1, "%s: open", from_name);
|
|
}
|
|
digestresult =
|
|
copy(from_fd, from_name, to_fd, to_name, from_sb.st_size);
|
|
(void)close(from_fd);
|
|
}
|
|
|
|
if (dostrip) {
|
|
strip(to_name);
|
|
|
|
/*
|
|
* Re-open our fd on the target, in case we used a strip
|
|
* that does not work in-place -- like gnu binutils strip.
|
|
*/
|
|
close(to_fd);
|
|
if ((to_fd = open(to_name, O_RDONLY, S_IRUSR | S_IWUSR)) < 0)
|
|
err(1, "stripping %s", to_name);
|
|
}
|
|
|
|
if (afterinstallcmd != NULL) {
|
|
afterinstall(afterinstallcmd, to_name, 1);
|
|
|
|
/*
|
|
* Re-open our fd on the target, in case we used an
|
|
* after-install command that does not work in-place
|
|
*/
|
|
close(to_fd);
|
|
if ((to_fd = open(to_name, O_RDONLY, S_IRUSR | S_IWUSR)) < 0)
|
|
err(1, "running after install command on %s", to_name);
|
|
}
|
|
|
|
/*
|
|
* Set owner, group, mode for target; do the chown first,
|
|
* chown may lose the setuid bits.
|
|
*/
|
|
if (!dounpriv &&
|
|
(flags & (HASUID | HASGID)) && fchown(to_fd, uid, gid) == -1) {
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "%s: chown/chgrp: %s", to_name, strerror(serrno));
|
|
}
|
|
tmpmode = mode;
|
|
if (dounpriv)
|
|
tmpmode &= S_IRWXU|S_IRWXG|S_IRWXO;
|
|
if (fchmod(to_fd, tmpmode) == -1) {
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "%s: chmod: %s", to_name, strerror(serrno));
|
|
}
|
|
|
|
/*
|
|
* Preserve the date of the source file.
|
|
*/
|
|
if (dopreserve) {
|
|
#if HAVE_FUTIMES
|
|
if (futimes(to_fd, tv) == -1)
|
|
warn("%s: futimes", to_name);
|
|
#else
|
|
if (utimes(to_name, tv) == -1)
|
|
warn("%s: utimes", to_name);
|
|
#endif
|
|
}
|
|
|
|
(void)close(to_fd);
|
|
|
|
if (dorename) {
|
|
if (rename(to_name, oto_name) == -1)
|
|
err(1, "%s: rename", to_name);
|
|
to_name = oto_name;
|
|
}
|
|
|
|
/*
|
|
* If provided a set of flags, set them, otherwise, preserve the
|
|
* flags, except for the dump flag.
|
|
*/
|
|
#if ! HAVE_NBTOOL_CONFIG_H
|
|
if (!dounpriv && chflags(to_name,
|
|
flags & SETFLAGS ? fileflags : from_sb.st_flags & ~UF_NODUMP) == -1)
|
|
{
|
|
if (errno != EOPNOTSUPP || (from_sb.st_flags & ~UF_NODUMP) != 0)
|
|
warn("%s: chflags", to_name);
|
|
}
|
|
#endif
|
|
|
|
metadata_log(to_name, "file", tv, NULL, digestresult);
|
|
free(digestresult);
|
|
}
|
|
|
|
/*
|
|
* copy --
|
|
* copy from one file to another
|
|
*/
|
|
char *
|
|
copy(int from_fd, char *from_name, int to_fd, char *to_name, off_t size)
|
|
{
|
|
ssize_t nr, nw;
|
|
int serrno;
|
|
char *p;
|
|
char buf[MAXBSIZE];
|
|
MD5_CTX ctxMD5;
|
|
RMD160_CTX ctxRMD160;
|
|
SHA1_CTX ctxSHA1;
|
|
|
|
switch (digesttype) {
|
|
case DIGEST_MD5:
|
|
MD5Init(&ctxMD5);
|
|
break;
|
|
case DIGEST_RMD160:
|
|
RMD160Init(&ctxRMD160);
|
|
break;
|
|
case DIGEST_SHA1:
|
|
SHA1Init(&ctxSHA1);
|
|
break;
|
|
case DIGEST_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
/*
|
|
* There's no reason to do anything other than close the file
|
|
* now if it's empty, so let's not bother.
|
|
*/
|
|
if (size > 0) {
|
|
|
|
/*
|
|
* Mmap and write if less than 8M (the limit is so we
|
|
* don't totally trash memory on big files). This is
|
|
* really a minor hack, but it wins some CPU back.
|
|
*/
|
|
|
|
if (size <= 8 * 1048576) {
|
|
if ((p = mmap(NULL, (size_t)size, PROT_READ,
|
|
MAP_FILE|MAP_SHARED, from_fd, (off_t)0))
|
|
== MAP_FAILED) {
|
|
goto mmap_failed;
|
|
}
|
|
#if defined(MADV_SEQUENTIAL) && !defined(__APPLE__)
|
|
if (madvise(p, (size_t)size, MADV_SEQUENTIAL) == -1
|
|
&& errno != EOPNOTSUPP)
|
|
warnx("madvise: %s", strerror(errno));
|
|
#endif
|
|
|
|
if (write(to_fd, p, size) != size) {
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "%s: write: %s",
|
|
to_name, strerror(serrno));
|
|
}
|
|
switch (digesttype) {
|
|
case DIGEST_MD5:
|
|
MD5Update(&ctxMD5, p, size);
|
|
break;
|
|
case DIGEST_RMD160:
|
|
RMD160Update(&ctxRMD160, p, size);
|
|
break;
|
|
case DIGEST_SHA1:
|
|
SHA1Update(&ctxSHA1, p, size);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
(void)munmap(p, size);
|
|
} else {
|
|
mmap_failed:
|
|
while ((nr = read(from_fd, buf, sizeof(buf))) > 0) {
|
|
if ((nw = write(to_fd, buf, nr)) != nr) {
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "%s: write: %s", to_name,
|
|
strerror(nw > 0 ? EIO : serrno));
|
|
}
|
|
switch (digesttype) {
|
|
case DIGEST_MD5:
|
|
MD5Update(&ctxMD5, buf, nr);
|
|
break;
|
|
case DIGEST_RMD160:
|
|
RMD160Update(&ctxRMD160, buf, nr);
|
|
break;
|
|
case DIGEST_SHA1:
|
|
SHA1Update(&ctxSHA1, buf, nr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (nr != 0) {
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "%s: read: %s", from_name, strerror(serrno));
|
|
}
|
|
}
|
|
}
|
|
switch (digesttype) {
|
|
case DIGEST_MD5:
|
|
return MD5End(&ctxMD5, NULL);
|
|
case DIGEST_RMD160:
|
|
return RMD160End(&ctxRMD160, NULL);
|
|
case DIGEST_SHA1:
|
|
return SHA1End(&ctxSHA1, NULL);
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* strip --
|
|
* use strip(1) to strip the target file
|
|
*/
|
|
void
|
|
strip(char *to_name)
|
|
{
|
|
int serrno, status;
|
|
char *stripprog;
|
|
|
|
switch (vfork()) {
|
|
case -1:
|
|
serrno = errno;
|
|
(void)unlink(to_name);
|
|
errx(1, "vfork: %s", strerror(serrno));
|
|
/*NOTREACHED*/
|
|
case 0:
|
|
stripprog = getenv("STRIP");
|
|
if (stripprog == NULL)
|
|
stripprog = _PATH_STRIP;
|
|
|
|
if (stripArgs) {
|
|
/*
|
|
* build up a command line and let /bin/sh
|
|
* parse the arguments
|
|
*/
|
|
char* cmd = (char*)malloc(sizeof(char)*
|
|
(3+strlen(stripprog)+
|
|
strlen(stripArgs)+
|
|
strlen(to_name)));
|
|
|
|
if (cmd == NULL)
|
|
errx(1, "%s", strerror(ENOMEM));
|
|
|
|
sprintf(cmd, "%s %s %s", stripprog, stripArgs, to_name);
|
|
|
|
execl(_PATH_BSHELL, "sh", "-c", cmd, NULL);
|
|
} else
|
|
execlp(stripprog, "strip", to_name, NULL);
|
|
|
|
warn("%s: exec of strip", stripprog);
|
|
_exit(1);
|
|
/*NOTREACHED*/
|
|
default:
|
|
if (wait(&status) == -1 || status)
|
|
(void)unlink(to_name);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* afterinstall --
|
|
* run provided command on the target file or directory after it's been
|
|
* installed and stripped, but before permissions are set or it's renamed
|
|
*/
|
|
void
|
|
afterinstall(const char *command, const char *to_name, int errunlink)
|
|
{
|
|
int serrno, status;
|
|
char *cmd;
|
|
|
|
switch (vfork()) {
|
|
case -1:
|
|
serrno = errno;
|
|
if (errunlink)
|
|
(void)unlink(to_name);
|
|
errx(1, "vfork: %s", strerror(serrno));
|
|
/*NOTREACHED*/
|
|
case 0:
|
|
/*
|
|
* build up a command line and let /bin/sh
|
|
* parse the arguments
|
|
*/
|
|
cmd = (char*)malloc(sizeof(char)*
|
|
(2+strlen(command)+
|
|
strlen(to_name)));
|
|
|
|
if (cmd == NULL)
|
|
errx(1, "%s", strerror(ENOMEM));
|
|
|
|
sprintf(cmd, "%s %s", command, to_name);
|
|
|
|
execl(_PATH_BSHELL, "sh", "-c", cmd, NULL);
|
|
|
|
warn("%s: exec of after install command", command);
|
|
_exit(1);
|
|
/*NOTREACHED*/
|
|
default:
|
|
if ((wait(&status) == -1 || status) && errunlink)
|
|
(void)unlink(to_name);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* backup --
|
|
* backup file "to_name" to to_name.suffix
|
|
* if suffix contains a "%", it's taken as a printf(3) pattern
|
|
* used for a numbered backup.
|
|
*/
|
|
void
|
|
backup(const char *to_name)
|
|
{
|
|
char bname[FILENAME_MAX];
|
|
|
|
if (numberedbackup) {
|
|
/* Do numbered backup */
|
|
int cnt;
|
|
char suffix_expanded[FILENAME_MAX];
|
|
|
|
cnt=0;
|
|
do {
|
|
(void)snprintf(suffix_expanded, FILENAME_MAX, suffix,
|
|
cnt);
|
|
(void)snprintf(bname, FILENAME_MAX, "%s%s", to_name,
|
|
suffix_expanded);
|
|
cnt++;
|
|
} while (access(bname, F_OK) == 0);
|
|
} else {
|
|
/* Do simple backup */
|
|
(void)snprintf(bname, FILENAME_MAX, "%s%s", to_name, suffix);
|
|
}
|
|
|
|
(void)rename(to_name, bname);
|
|
}
|
|
|
|
/*
|
|
* install_dir --
|
|
* build directory hierarchy
|
|
*/
|
|
void
|
|
install_dir(char *path, u_int flags)
|
|
{
|
|
char *p;
|
|
struct stat sb;
|
|
int ch;
|
|
|
|
for (p = path;; ++p)
|
|
if (!*p || (p != path && *p == '/')) {
|
|
ch = *p;
|
|
*p = '\0';
|
|
if (stat(path, &sb)) {
|
|
if (errno != ENOENT || mkdir(path, 0777) < 0) {
|
|
err(1, "%s: mkdir", path);
|
|
}
|
|
}
|
|
if (!(*p = ch))
|
|
break;
|
|
}
|
|
|
|
if (afterinstallcmd != NULL)
|
|
afterinstall(afterinstallcmd, path, 0);
|
|
|
|
if (!dounpriv && (
|
|
((flags & (HASUID | HASGID)) && chown(path, uid, gid) == -1)
|
|
|| chmod(path, mode) == -1 )) {
|
|
warn("%s: chown/chmod", path);
|
|
}
|
|
metadata_log(path, "dir", NULL, NULL, NULL);
|
|
}
|
|
|
|
/*
|
|
* metadata_log --
|
|
* if metafp is not NULL, output mtree(8) full path name and settings to
|
|
* metafp, to allow permissions to be set correctly by other tools.
|
|
*/
|
|
void
|
|
metadata_log(const char *path, const char *type, struct timeval *tv,
|
|
const char *link, const char *digestresult)
|
|
{
|
|
static const char extra[] = { ' ', '\t', '\n', '\\', '#', '\0' };
|
|
char *buf, *p;
|
|
size_t destlen;
|
|
struct flock metalog_lock;
|
|
|
|
if (!metafp)
|
|
return;
|
|
buf = (char *)malloc(4 * strlen(path) + 1); /* buf for strsvis(3) */
|
|
if (buf == NULL) {
|
|
warnx("%s", strerror(ENOMEM));
|
|
return;
|
|
}
|
|
/* lock log file */
|
|
metalog_lock.l_start = 0;
|
|
metalog_lock.l_len = 0;
|
|
metalog_lock.l_whence = SEEK_SET;
|
|
metalog_lock.l_type = F_WRLCK;
|
|
if (fcntl(fileno(metafp), F_SETLKW, &metalog_lock) == -1) {
|
|
warn("can't lock %s", metafile);
|
|
return;
|
|
}
|
|
|
|
strsvis(buf, path, VIS_CSTYLE, extra); /* encode name */
|
|
p = buf; /* remove destdir */
|
|
if (destdir) {
|
|
destlen = strlen(destdir);
|
|
if (strncmp(p, destdir, destlen) == 0 &&
|
|
(p[destlen] == '/' || p[destlen] == '\0'))
|
|
p += destlen;
|
|
}
|
|
while (*p && *p == '/') /* remove leading /s */
|
|
p++;
|
|
/* print details */
|
|
fprintf(metafp, ".%s%s type=%s mode=%#o", *p ? "/" : "", p, type, mode);
|
|
if (link)
|
|
fprintf(metafp, " link=%s", link);
|
|
if (owner)
|
|
fprintf(metafp, " uname=%s", owner);
|
|
if (group)
|
|
fprintf(metafp, " gname=%s", group);
|
|
if (fflags)
|
|
fprintf(metafp, " flags=%s", fflags);
|
|
if (tags)
|
|
fprintf(metafp, " tags=%s", tags);
|
|
if (tv != NULL && dopreserve)
|
|
fprintf(metafp, " time=%ld.%ld", tv[1].tv_sec, tv[1].tv_usec);
|
|
if (digestresult && digest)
|
|
fprintf(metafp, " %s=%s", digest, digestresult);
|
|
fputc('\n', metafp);
|
|
fflush(metafp); /* flush output */
|
|
/* unlock log file */
|
|
metalog_lock.l_type = F_UNLCK;
|
|
if (fcntl(fileno(metafp), F_SETLKW, &metalog_lock) == -1) {
|
|
warn("can't unlock %s", metafile);
|
|
}
|
|
free(buf);
|
|
}
|
|
|
|
/*
|
|
* xbasename --
|
|
* libc basename(3) that returns a pointer to a static buffer
|
|
* instead of overwriting that passed-in string.
|
|
*/
|
|
char *
|
|
xbasename(char *path)
|
|
{
|
|
static char tmp[MAXPATHLEN];
|
|
|
|
(void)strlcpy(tmp, path, sizeof(tmp));
|
|
return (basename(tmp));
|
|
}
|
|
|
|
/*
|
|
* xdirname --
|
|
* libc dirname(3) that returns a pointer to a static buffer
|
|
* instead of overwriting that passed-in string.
|
|
*/
|
|
char *
|
|
xdirname(char *path)
|
|
{
|
|
static char tmp[MAXPATHLEN];
|
|
|
|
(void)strlcpy(tmp, path, sizeof(tmp));
|
|
return (dirname(tmp));
|
|
}
|
|
|
|
/*
|
|
* usage --
|
|
* print a usage message and die
|
|
*/
|
|
void
|
|
usage(void)
|
|
{
|
|
const char *prog;
|
|
|
|
prog = getprogname();
|
|
|
|
(void)fprintf(stderr,
|
|
"usage: %s [-Ubcprs] [-M log] [-D dest] [-T tags] [-B suffix]\n"
|
|
" [-a aftercmd] [-f flags] [-m mode] [-N dbdir] [-o owner] [-g group] \n"
|
|
" [-l linkflags] [-h hash] [-S stripflags] file1 file2\n"
|
|
" %s [-Ubcprs] [-M log] [-D dest] [-T tags] [-B suffix]\n"
|
|
" [-a aftercmd] [-f flags] [-m mode] [-N dbdir] [-o owner] [-g group]\n"
|
|
" [-l linkflags] [-h hash] [-S stripflags] file1 ... fileN directory\n"
|
|
" %s -d [-Up] [-M log] [-D dest] [-T tags] [-a aftercmd] [-m mode]\n"
|
|
" [-N dbdir] [-o owner] [-g group] directory ...\n",
|
|
prog, prog, prog);
|
|
exit(1);
|
|
}
|