e0fcc669c4
isn't addressed with a negative offset when back at the top of the tree. This caused pax -M on sparc64 to generate corrupt tar files. Problem found by Tim Goodwin <tjg@star.le.ac.uk> in [bin/17412].
749 lines
21 KiB
C
749 lines
21 KiB
C
/* $NetBSD: ftree.c,v 1.21 2002/06/28 11:29:45 lukem Exp $ */
|
|
|
|
/*-
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* Copyright (c) 1992 Keith Muller.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
|
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* This code is derived from software contributed to Berkeley by
|
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* Keith Muller of the University of California, San Diego.
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*
|
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* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
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* 4. 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
|
|
* 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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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn of Wasabi Systems.
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*
|
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* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
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|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)ftree.c 8.2 (Berkeley) 4/18/94";
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#else
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__RCSID("$NetBSD: ftree.c,v 1.21 2002/06/28 11:29:45 lukem Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fts.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 "pax.h"
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#include "ftree.h"
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#include "extern.h"
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#ifndef SMALL
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#include "mtree.h"
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#endif /* SMALL */
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|
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/*
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* routines to interface with the fts library function.
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*
|
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* file args supplied to pax are stored on a single linked list (of type FTREE)
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* and given to fts to be processed one at a time. pax "selects" files from
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* the expansion of each arg into the corresponding file tree (if the arg is a
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* directory, otherwise the node itself is just passed to pax). The selection
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* is modified by the -n and -u flags. The user is informed when a specific
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* file arg does not generate any selected files. -n keeps expanding the file
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* tree arg until one of its files is selected, then skips to the next file
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* arg. when the user does not supply the file trees as command line args to
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* pax, they are read from stdin
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*/
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static FTS *ftsp = NULL; /* current FTS handle */
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static int ftsopts; /* options to be used on fts_open */
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static char *farray[2]; /* array for passing each arg to fts */
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static FTREE *fthead = NULL; /* head of linked list of file args */
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static FTREE *fttail = NULL; /* tail of linked list of file args */
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static FTREE *ftcur = NULL; /* current file arg being processed */
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static FTSENT *ftent = NULL; /* current file tree entry */
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static int ftree_skip; /* when set skip to next file arg */
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#ifndef SMALL
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static NODE *ftnode = NULL; /* mtree(8) specfile; used by -M */
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#endif /* SMALL */
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|
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static int ftree_arg(void);
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|
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#ifdef NET2_FTS
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#define FTS_ERRNO(x) errno
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#else
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#define FTS_ERRNO(x) (x)->fts_errno
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#endif
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|
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/*
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* ftree_start()
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* initialize the options passed to fts_open() during this run of pax
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* options are based on the selection of pax options by the user
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* fts_start() also calls fts_arg() to open the first valid file arg. We
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* also attempt to reset directory access times when -t (tflag) is set.
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* Return:
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* 0 if there is at least one valid file arg to process, -1 otherwise
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*/
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int
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ftree_start(void)
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{
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#ifndef SMALL
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/*
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* if -M is given, the list of filenames on stdin is actually
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* an mtree(8) specfile, so parse the specfile into a NODE *
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* tree at ftnode, for use by next_file()
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*/
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if (Mflag) {
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if (fthead != NULL) {
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tty_warn(1,
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"The -M flag is only supported when reading file list from stdin");
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return(-1);
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}
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ftnode = spec(stdin);
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if (ftnode != NULL &&
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(ftnode->type != F_DIR || strcmp(ftnode->name, ".") != 0)) {
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tty_warn(1,
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"First node of specfile is not `.' directory");
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return(-1);
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}
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return(0);
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}
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#endif /* SMALL */
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|
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/*
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* set up the operation mode of fts, open the first file arg. We must
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* use FTS_NOCHDIR, as the user may have to open multiple archives and
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* if fts did a chdir off into the boondocks, we may create an archive
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* volume in an place where the user did not expect to.
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*/
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ftsopts = FTS_NOCHDIR;
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/*
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* optional user flags that effect file traversal
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* -H command line symlink follow only (half follow)
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* -L follow sylinks (logical)
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* -P do not follow sylinks (physical). This is the default.
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* -X do not cross over mount points
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* -t preserve access times on files read.
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* -n select only the first member of a file tree when a match is found
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* -d do not extract subtrees rooted at a directory arg.
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*/
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if (Lflag)
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ftsopts |= FTS_LOGICAL;
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else
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ftsopts |= FTS_PHYSICAL;
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if (Hflag)
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#ifdef NET2_FTS
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tty_warn(0, "The -H flag is not supported on this version");
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#else
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ftsopts |= FTS_COMFOLLOW;
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#endif
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if (Xflag)
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ftsopts |= FTS_XDEV;
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if ((fthead == NULL) && ((farray[0] = malloc(PAXPATHLEN+2)) == NULL)) {
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tty_warn(1, "Unable to allocate memory for file name buffer");
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return(-1);
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|
}
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|
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if (ftree_arg() < 0)
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return(-1);
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if (tflag && (atdir_start() < 0))
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return(-1);
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return(0);
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|
}
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|
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/*
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* ftree_add()
|
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* add the arg to the linked list of files to process. Each will be
|
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* processed by fts one at a time
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* Return:
|
|
* 0 if added to the linked list, -1 if failed
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|
*/
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|
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int
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ftree_add(char *str, int isdir)
|
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{
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FTREE *ft;
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int len;
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|
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/*
|
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* simple check for bad args
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*/
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if ((str == NULL) || (*str == '\0')) {
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tty_warn(0, "Invalid file name arguement");
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return(-1);
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|
}
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|
|
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/*
|
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* allocate FTREE node and add to the end of the linked list (args are
|
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* processed in the same order they were passed to pax). Get rid of any
|
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* trailing / the user may pass us. (watch out for / by itself).
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|
*/
|
|
if ((ft = (FTREE *)malloc(sizeof(FTREE))) == NULL) {
|
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tty_warn(0, "Unable to allocate memory for filename");
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return(-1);
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|
}
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|
|
if (((len = strlen(str) - 1) > 0) && (str[len] == '/'))
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str[len] = '\0';
|
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ft->fname = str;
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ft->refcnt = -isdir;
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ft->fow = NULL;
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if (fthead == NULL) {
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fttail = fthead = ft;
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return(0);
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|
}
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|
fttail->fow = ft;
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|
fttail = ft;
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|
return(0);
|
|
}
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|
|
/*
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|
* ftree_sel()
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* this entry has been selected by pax. bump up reference count and handle
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* -n and -d processing.
|
|
*/
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|
|
void
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ftree_sel(ARCHD *arcn)
|
|
{
|
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/*
|
|
* set reference bit for this pattern. This linked list is only used
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* when file trees are supplied pax as args. The list is not used when
|
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* the trees are read from stdin.
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|
*/
|
|
if (ftcur != NULL)
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|
ftcur->refcnt = 1;
|
|
|
|
/*
|
|
* if -n we are done with this arg, force a skip to the next arg when
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* pax asks for the next file in next_file().
|
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* if -M we don't use fts(3), so the rest of this function is moot.
|
|
* if -d we tell fts only to match the directory (if the arg is a dir)
|
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* and not the entire file tree rooted at that point.
|
|
*/
|
|
if (nflag)
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|
ftree_skip = 1;
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|
|
|
if (Mflag || !dflag || (arcn->type != PAX_DIR))
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|
return;
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|
|
|
if (ftent != NULL)
|
|
(void)fts_set(ftsp, ftent, FTS_SKIP);
|
|
}
|
|
|
|
/*
|
|
* ftree_chk()
|
|
* called at end on pax execution. Prints all those file args that did not
|
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* have a selected member (reference count still 0)
|
|
*/
|
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|
|
void
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|
ftree_chk(void)
|
|
{
|
|
FTREE *ft;
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|
int wban = 0;
|
|
|
|
/*
|
|
* make sure all dir access times were reset.
|
|
*/
|
|
if (tflag)
|
|
atdir_end();
|
|
|
|
/*
|
|
* walk down list and check reference count. Print out those members
|
|
* that never had a match
|
|
*/
|
|
for (ft = fthead; ft != NULL; ft = ft->fow) {
|
|
if (ft->refcnt != 0)
|
|
continue;
|
|
if (wban == 0) {
|
|
tty_warn(1,
|
|
"WARNING! These file names were not selected:");
|
|
++wban;
|
|
}
|
|
(void)fprintf(stderr, "%s\n", ft->fname);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ftree_arg()
|
|
* Get the next file arg for fts to process. Can be from either the linked
|
|
* list or read from stdin when the user did not them as args to pax. Each
|
|
* arg is processed until the first successful fts_open().
|
|
* Return:
|
|
* 0 when the next arg is ready to go, -1 if out of file args (or EOF on
|
|
* stdin).
|
|
*/
|
|
|
|
static int
|
|
ftree_arg(void)
|
|
{
|
|
char *pt;
|
|
|
|
/*
|
|
* close off the current file tree
|
|
*/
|
|
if (ftsp != NULL) {
|
|
(void)fts_close(ftsp);
|
|
ftsp = NULL;
|
|
}
|
|
|
|
/*
|
|
* keep looping until we get a valid file tree to process. Stop when we
|
|
* reach the end of the list (or get an eof on stdin)
|
|
*/
|
|
for(;;) {
|
|
if (fthead == NULL) {
|
|
/*
|
|
* the user didn't supply any args, get the file trees
|
|
* to process from stdin;
|
|
*/
|
|
if (fgets(farray[0], PAXPATHLEN+1, stdin) == NULL)
|
|
return(-1);
|
|
if ((pt = strchr(farray[0], '\n')) != NULL)
|
|
*pt = '\0';
|
|
} else {
|
|
/*
|
|
* the user supplied the file args as arguements to pax
|
|
*/
|
|
if (ftcur == NULL)
|
|
ftcur = fthead;
|
|
else if ((ftcur = ftcur->fow) == NULL)
|
|
return(-1);
|
|
|
|
if (ftcur->refcnt < 0) {
|
|
/*
|
|
* chdir entry.
|
|
* Change directory and retry loop.
|
|
*/
|
|
if (ar_dochdir(ftcur->fname))
|
|
return (-1);
|
|
continue;
|
|
}
|
|
farray[0] = ftcur->fname;
|
|
}
|
|
|
|
/*
|
|
* watch it, fts wants the file arg stored in a array of char
|
|
* ptrs, with the last one a null. we use a two element array
|
|
* and set farray[0] to point at the buffer with the file name
|
|
* in it. We cannot pass all the file args to fts at one shot
|
|
* as we need to keep a handle on which file arg generates what
|
|
* files (the -n and -d flags need this). If the open is
|
|
* successful, return a 0.
|
|
*/
|
|
if ((ftsp = fts_open(farray, ftsopts, NULL)) != NULL)
|
|
break;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* next_file()
|
|
* supplies the next file to process in the supplied archd structure.
|
|
* Return:
|
|
* 0 when contents of arcn have been set with the next file, -1 when done.
|
|
*/
|
|
|
|
int
|
|
next_file(ARCHD *arcn)
|
|
{
|
|
#ifndef SMALL
|
|
static char curdir[PAXPATHLEN+2], curpath[PAXPATHLEN+2];
|
|
static int curdirlen;
|
|
|
|
struct stat statbuf;
|
|
FTSENT Mftent;
|
|
#endif /* SMALL */
|
|
int cnt;
|
|
time_t atime, mtime;
|
|
char *curlink;
|
|
#define MFTENT_DUMMY_DEV UINT_MAX
|
|
|
|
curlink = NULL;
|
|
#ifndef SMALL
|
|
/*
|
|
* if parsing an mtree(8) specfile, build up `dummy' ftsent
|
|
* from specfile info, and jump below to complete setup of arcn.
|
|
*/
|
|
if (Mflag) {
|
|
int skipoptional;
|
|
|
|
next_ftnode:
|
|
skipoptional = 0;
|
|
if (ftnode == NULL) /* tree is empty */
|
|
return (-1);
|
|
|
|
/* get current name */
|
|
if (snprintf(curpath, sizeof(curpath), "%s%s%s",
|
|
curdir, curdirlen ? "/" : "", ftnode->name)
|
|
>= sizeof(curpath)) {
|
|
tty_warn(1, "line %lu: %s: %s", (u_long)ftnode->lineno,
|
|
curdir, strerror(ENAMETOOLONG));
|
|
return (-1);
|
|
}
|
|
ftnode->flags |= F_VISIT; /* mark node visited */
|
|
|
|
/* construct dummy FTSENT */
|
|
Mftent.fts_path = curpath;
|
|
Mftent.fts_statp = &statbuf;
|
|
Mftent.fts_pointer = ftnode;
|
|
ftent = &Mftent;
|
|
/* look for existing file */
|
|
if (lstat(Mftent.fts_path, &statbuf) == -1) {
|
|
if (ftnode->flags & F_OPT)
|
|
skipoptional = 1;
|
|
|
|
/* missing: fake up stat info */
|
|
memset(&statbuf, 0, sizeof(statbuf));
|
|
statbuf.st_dev = MFTENT_DUMMY_DEV;
|
|
statbuf.st_ino = ftnode->lineno;
|
|
statbuf.st_size = 0;
|
|
#define NODETEST(t, m) \
|
|
if (!(t)) { \
|
|
tty_warn(1, "line %lu: %s: %s not specified", \
|
|
(u_long)ftnode->lineno, \
|
|
ftent->fts_path, m); \
|
|
return(-1); \
|
|
}
|
|
statbuf.st_mode = nodetoino(ftnode->type);
|
|
NODETEST(ftnode->flags & F_TYPE, "type");
|
|
NODETEST(ftnode->flags & F_MODE, "mode");
|
|
if (!(ftnode->flags & F_TIME))
|
|
statbuf.st_mtime = starttime;
|
|
NODETEST(ftnode->flags & (F_GID | F_GNAME), "group");
|
|
NODETEST(ftnode->flags & (F_UID | F_UNAME), "user");
|
|
if (ftnode->type == F_BLOCK || ftnode->type == F_CHAR)
|
|
NODETEST(ftnode->flags & F_DEV,
|
|
"device number");
|
|
if (ftnode->type == F_LINK)
|
|
NODETEST(ftnode->flags & F_SLINK, "symlink");
|
|
/* don't require F_FLAGS or F_SIZE */
|
|
#undef NODETEST
|
|
} else {
|
|
if (ftnode->flags & F_TYPE && nodetoino(ftnode->type)
|
|
!= (statbuf.st_mode & S_IFMT)) {
|
|
tty_warn(1,
|
|
"line %lu: %s: type mismatch: specfile %s, tree %s",
|
|
(u_long)ftnode->lineno, ftent->fts_path,
|
|
inotype(nodetoino(ftnode->type)),
|
|
inotype(statbuf.st_mode));
|
|
return(-1);
|
|
}
|
|
if (ftnode->type == F_DIR && (ftnode->flags & F_OPT))
|
|
skipoptional = 1;
|
|
}
|
|
/*
|
|
* override settings with those from specfile
|
|
*/
|
|
if (ftnode->flags & F_MODE) {
|
|
statbuf.st_mode &= ~ALLPERMS;
|
|
statbuf.st_mode |= (ftnode->st_mode & ALLPERMS);
|
|
}
|
|
if (ftnode->flags & (F_GID | F_GNAME))
|
|
statbuf.st_gid = ftnode->st_gid;
|
|
if (ftnode->flags & (F_UID | F_UNAME))
|
|
statbuf.st_uid = ftnode->st_uid;
|
|
#if HAVE_STRUCT_STAT_ST_FLAGS
|
|
if (ftnode->flags & F_FLAGS)
|
|
statbuf.st_flags = ftnode->st_flags;
|
|
#endif
|
|
if (ftnode->flags & F_TIME)
|
|
#ifdef BSD4_4
|
|
statbuf.st_mtimespec = ftnode->st_mtimespec;
|
|
#else
|
|
statbuf.st_mtime = ftnode->st_mtimespec.tv_sec;
|
|
#endif
|
|
if (ftnode->flags & F_DEV)
|
|
statbuf.st_rdev = ftnode->st_rdev;
|
|
if (ftnode->flags & F_SLINK)
|
|
curlink = ftnode->slink;
|
|
/* ignore F_SIZE */
|
|
|
|
/*
|
|
* find next node
|
|
*/
|
|
if (ftnode->type == F_DIR && ftnode->child != NULL) {
|
|
/* directory with unseen child */
|
|
ftnode = ftnode->child;
|
|
curdirlen = l_strncpy(curdir, curpath, sizeof(curdir));
|
|
} else do {
|
|
if (ftnode->next != NULL) {
|
|
/* next node at current level */
|
|
ftnode = ftnode->next;
|
|
} else { /* move back to parent */
|
|
/* reset time only on first cd.. */
|
|
if (Mftent.fts_pointer == ftnode && tflag &&
|
|
(get_atdir(MFTENT_DUMMY_DEV, ftnode->lineno,
|
|
&mtime, &atime) == 0)) {
|
|
set_ftime(ftent->fts_path,
|
|
mtime, atime, 1);
|
|
}
|
|
ftnode = ftnode->parent;
|
|
if (ftnode->parent == ftnode)
|
|
ftnode = NULL;
|
|
else {
|
|
curdirlen -= strlen(ftnode->name) + 1;
|
|
curdir[curdirlen] = '\0';
|
|
}
|
|
}
|
|
} while (ftnode != NULL && ftnode->flags & F_VISIT);
|
|
if (skipoptional) /* skip optional entries */
|
|
goto next_ftnode;
|
|
goto got_ftent;
|
|
}
|
|
#endif /* SMALL */
|
|
|
|
/*
|
|
* ftree_sel() might have set the ftree_skip flag if the user has the
|
|
* -n option and a file was selected from this file arg tree. (-n says
|
|
* only one member is matched for each pattern) ftree_skip being 1
|
|
* forces us to go to the next arg now.
|
|
*/
|
|
if (ftree_skip) {
|
|
/*
|
|
* clear and go to next arg
|
|
*/
|
|
ftree_skip = 0;
|
|
if (ftree_arg() < 0)
|
|
return(-1);
|
|
}
|
|
|
|
/*
|
|
* loop until we get a valid file to process
|
|
*/
|
|
for(;;) {
|
|
if ((ftent = fts_read(ftsp)) == NULL) {
|
|
/*
|
|
* out of files in this tree, go to next arg, if none
|
|
* we are done
|
|
*/
|
|
if (ftree_arg() < 0)
|
|
return(-1);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* handle each type of fts_read() flag
|
|
*/
|
|
switch(ftent->fts_info) {
|
|
case FTS_D:
|
|
/*
|
|
* cpio does *not* decend directories listed in the
|
|
* arguments, unlike pax/tar, so needs special handling
|
|
* here. failure to do so results in massive amounts
|
|
* of duplicated files in the output.
|
|
*/
|
|
if (cpio_mode)
|
|
continue;
|
|
/* FALLTHROUGH */
|
|
case FTS_DEFAULT:
|
|
case FTS_F:
|
|
case FTS_SL:
|
|
case FTS_SLNONE:
|
|
/*
|
|
* these are all ok
|
|
*/
|
|
break;
|
|
case FTS_DP:
|
|
/*
|
|
* already saw this directory. If the user wants file
|
|
* access times reset, we use this to restore the
|
|
* access time for this directory since this is the
|
|
* last time we will see it in this file subtree
|
|
* remember to force the time (this is -t on a read
|
|
* directory, not a created directory).
|
|
*/
|
|
if (!tflag || (get_atdir(
|
|
#ifdef NET2_FTS
|
|
ftent->fts_statb.st_dev, ftent->fts_statb.st_ino,
|
|
#else
|
|
ftent->fts_statp->st_dev, ftent->fts_statp->st_ino,
|
|
#endif
|
|
&mtime, &atime) < 0))
|
|
continue;
|
|
set_ftime(ftent->fts_path, mtime, atime, 1);
|
|
continue;
|
|
case FTS_DC:
|
|
/*
|
|
* fts claims a file system cycle
|
|
*/
|
|
tty_warn(1,"File system cycle found at %s",
|
|
ftent->fts_path);
|
|
continue;
|
|
case FTS_DNR:
|
|
syswarn(1, FTS_ERRNO(ftent),
|
|
"Unable to read directory %s", ftent->fts_path);
|
|
continue;
|
|
case FTS_ERR:
|
|
syswarn(1, FTS_ERRNO(ftent),
|
|
"File system traversal error");
|
|
continue;
|
|
case FTS_NS:
|
|
case FTS_NSOK:
|
|
syswarn(1, FTS_ERRNO(ftent),
|
|
"Unable to access %s", ftent->fts_path);
|
|
continue;
|
|
}
|
|
|
|
#ifndef SMALL
|
|
got_ftent:
|
|
#endif /* SMALL */
|
|
/*
|
|
* ok got a file tree node to process. copy info into arcn
|
|
* structure (initialize as required)
|
|
*/
|
|
arcn->skip = 0;
|
|
arcn->pad = 0;
|
|
arcn->ln_nlen = 0;
|
|
arcn->ln_name[0] = '\0';
|
|
#ifdef NET2_FTS
|
|
arcn->sb = ftent->fts_statb;
|
|
#else
|
|
arcn->sb = *(ftent->fts_statp);
|
|
#endif
|
|
|
|
/*
|
|
* file type based set up and copy into the arcn struct
|
|
* SIDE NOTE:
|
|
* we try to reset the access time on all files and directories
|
|
* we may read when the -t flag is specified. files are reset
|
|
* when we close them after copying. we reset the directories
|
|
* when we are done with their file tree (we also clean up at
|
|
* end in case we cut short a file tree traversal). However
|
|
* there is no way to reset access times on symlinks.
|
|
*/
|
|
switch(S_IFMT & arcn->sb.st_mode) {
|
|
case S_IFDIR:
|
|
arcn->type = PAX_DIR;
|
|
if (!tflag)
|
|
break;
|
|
add_atdir(ftent->fts_path, arcn->sb.st_dev,
|
|
arcn->sb.st_ino, arcn->sb.st_mtime,
|
|
arcn->sb.st_atime);
|
|
break;
|
|
case S_IFCHR:
|
|
arcn->type = PAX_CHR;
|
|
break;
|
|
case S_IFBLK:
|
|
arcn->type = PAX_BLK;
|
|
break;
|
|
case S_IFREG:
|
|
/*
|
|
* only regular files with have data to store on the
|
|
* archive. all others will store a zero length skip.
|
|
* the skip field is used by pax for actual data it has
|
|
* to read (or skip over).
|
|
*/
|
|
arcn->type = PAX_REG;
|
|
arcn->skip = arcn->sb.st_size;
|
|
break;
|
|
case S_IFLNK:
|
|
arcn->type = PAX_SLK;
|
|
if (curlink != NULL) {
|
|
cnt = l_strncpy(arcn->ln_name, curlink,
|
|
sizeof(arcn->ln_name));
|
|
/*
|
|
* have to read the symlink path from the file
|
|
*/
|
|
} else if ((cnt =
|
|
readlink(ftent->fts_path, arcn->ln_name,
|
|
PAXPATHLEN)) < 0) {
|
|
syswarn(1, errno, "Unable to read symlink %s",
|
|
ftent->fts_path);
|
|
continue;
|
|
}
|
|
/*
|
|
* set link name length, watch out readlink does not
|
|
* allways null terminate the link path
|
|
*/
|
|
arcn->ln_name[cnt] = '\0';
|
|
arcn->ln_nlen = cnt;
|
|
break;
|
|
case S_IFSOCK:
|
|
/*
|
|
* under BSD storing a socket is senseless but we will
|
|
* let the format specific write function make the
|
|
* decision of what to do with it.
|
|
*/
|
|
arcn->type = PAX_SCK;
|
|
break;
|
|
case S_IFIFO:
|
|
arcn->type = PAX_FIF;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* copy file name, set file name length
|
|
*/
|
|
arcn->nlen = l_strncpy(arcn->name, ftent->fts_path, PAXPATHLEN+1);
|
|
arcn->name[arcn->nlen] = '\0';
|
|
arcn->org_name = ftent->fts_path;
|
|
return(0);
|
|
}
|