1994-05-26 06:35:07 +00:00
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/*
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* Copyright (c) 1983, 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* 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
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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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#ifndef lint
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1998-07-28 06:20:16 +00:00
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#if 0
|
1997-03-11 12:55:19 +00:00
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static char sccsid[] = "@(#)utilities.c 8.5 (Berkeley) 4/28/95";
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1998-07-28 06:20:16 +00:00
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|
#endif
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static const char rcsid[] =
|
1999-08-28 00:22:10 +00:00
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"$FreeBSD$";
|
1994-05-26 06:35:07 +00:00
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|
#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/dir.h>
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#include <errno.h>
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#include <stdio.h>
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2001-06-24 23:04:23 +00:00
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#include <stdlib.h>
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1994-05-26 06:35:07 +00:00
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#include <string.h>
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#include <unistd.h>
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#include "restore.h"
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#include "extern.h"
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/*
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* Insure that all the components of a pathname exist.
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*/
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void
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pathcheck(name)
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char *name;
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{
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2002-03-20 17:55:10 +00:00
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char *cp;
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1994-05-26 06:35:07 +00:00
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struct entry *ep;
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char *start;
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1997-03-11 12:55:19 +00:00
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start = strchr(name, '/');
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1994-05-26 06:35:07 +00:00
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if (start == 0)
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return;
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for (cp = start; *cp != '\0'; cp++) {
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if (*cp != '/')
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continue;
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*cp = '\0';
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ep = lookupname(name);
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if (ep == NULL) {
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/* Safe; we know the pathname exists in the dump. */
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ep = addentry(name, pathsearch(name)->d_ino, NODE);
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newnode(ep);
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}
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ep->e_flags |= NEW|KEEP;
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*cp = '/';
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}
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}
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/*
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* Change a name to a unique temporary name.
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*/
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void
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mktempname(ep)
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2002-03-20 17:55:10 +00:00
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struct entry *ep;
|
1994-05-26 06:35:07 +00:00
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{
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char oldname[MAXPATHLEN];
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if (ep->e_flags & TMPNAME)
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badentry(ep, "mktempname: called with TMPNAME");
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ep->e_flags |= TMPNAME;
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(void) strcpy(oldname, myname(ep));
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freename(ep->e_name);
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ep->e_name = savename(gentempname(ep));
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ep->e_namlen = strlen(ep->e_name);
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renameit(oldname, myname(ep));
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}
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/*
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* Generate a temporary name for an entry.
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*/
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char *
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gentempname(ep)
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struct entry *ep;
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{
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static char name[MAXPATHLEN];
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struct entry *np;
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long i = 0;
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for (np = lookupino(ep->e_ino);
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np != NULL && np != ep; np = np->e_links)
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i++;
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if (np == NULL)
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badentry(ep, "not on ino list");
|
1998-06-28 20:25:59 +00:00
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(void) sprintf(name, "%s%ld%lu", TMPHDR, i, (u_long)ep->e_ino);
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1994-05-26 06:35:07 +00:00
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return (name);
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}
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/*
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* Rename a file or directory.
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*/
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void
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renameit(from, to)
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char *from, *to;
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{
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|
if (!Nflag && rename(from, to) < 0) {
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|
fprintf(stderr, "warning: cannot rename %s to %s: %s\n",
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from, to, strerror(errno));
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return;
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}
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vprintf(stdout, "rename %s to %s\n", from, to);
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}
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/*
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* Create a new node (directory).
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*/
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void
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newnode(np)
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struct entry *np;
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{
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char *cp;
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if (np->e_type != NODE)
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badentry(np, "newnode: not a node");
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cp = myname(np);
|
1998-05-09 05:23:02 +00:00
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|
if (!Nflag && mkdir(cp, 0777) < 0 && !uflag) {
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1994-05-26 06:35:07 +00:00
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np->e_flags |= EXISTED;
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|
fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno));
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return;
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|
}
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vprintf(stdout, "Make node %s\n", cp);
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}
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/*
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* Remove an old node (directory).
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*/
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void
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removenode(ep)
|
2002-03-20 17:55:10 +00:00
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struct entry *ep;
|
1994-05-26 06:35:07 +00:00
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{
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char *cp;
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if (ep->e_type != NODE)
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badentry(ep, "removenode: not a node");
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if (ep->e_entries != NULL)
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badentry(ep, "removenode: non-empty directory");
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ep->e_flags |= REMOVED;
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ep->e_flags &= ~TMPNAME;
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cp = myname(ep);
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if (!Nflag && rmdir(cp) < 0) {
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|
fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno));
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return;
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|
}
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vprintf(stdout, "Remove node %s\n", cp);
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}
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/*
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* Remove a leaf.
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*/
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void
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removeleaf(ep)
|
2002-03-20 17:55:10 +00:00
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struct entry *ep;
|
1994-05-26 06:35:07 +00:00
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|
{
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char *cp;
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|
if (ep->e_type != LEAF)
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badentry(ep, "removeleaf: not a leaf");
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ep->e_flags |= REMOVED;
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ep->e_flags &= ~TMPNAME;
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|
cp = myname(ep);
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|
if (!Nflag && unlink(cp) < 0) {
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|
fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno));
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return;
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|
}
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|
vprintf(stdout, "Remove leaf %s\n", cp);
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|
}
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|
/*
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|
* Create a link.
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|
*/
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|
int
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linkit(existing, new, type)
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char *existing, *new;
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int type;
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{
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|
|
1998-05-09 05:23:02 +00:00
|
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|
/* if we want to unlink first, do it now so *link() won't fail */
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|
|
if (uflag && !Nflag)
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|
(void)unlink(new);
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|
|
1994-05-26 06:35:07 +00:00
|
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|
if (type == SYMLINK) {
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|
|
if (!Nflag && symlink(existing, new) < 0) {
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|
|
fprintf(stderr,
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|
|
"warning: cannot create symbolic link %s->%s: %s\n",
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|
|
new, existing, strerror(errno));
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|
|
return (FAIL);
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|
|
}
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|
|
} else if (type == HARDLINK) {
|
1998-07-09 03:57:26 +00:00
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|
|
int ret;
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|
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|
|
if (!Nflag && (ret = link(existing, new)) < 0) {
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|
|
struct stat s;
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|
|
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|
|
/*
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|
|
* Most likely, the schg flag is set. Clear the
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|
* flags and try again.
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|
*/
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|
if (stat(existing, &s) == 0 && s.st_flags != 0 &&
|
|
|
|
chflags(existing, 0) == 0) {
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|
|
ret = link(existing, new);
|
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|
|
chflags(existing, s.st_flags);
|
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|
|
}
|
|
|
|
if (ret < 0) {
|
|
|
|
fprintf(stderr, "warning: cannot create "
|
|
|
|
"hard link %s->%s: %s\n",
|
|
|
|
new, existing, strerror(errno));
|
|
|
|
return (FAIL);
|
|
|
|
}
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
panic("linkit: unknown type %d\n", type);
|
|
|
|
return (FAIL);
|
|
|
|
}
|
|
|
|
vprintf(stdout, "Create %s link %s->%s\n",
|
|
|
|
type == SYMLINK ? "symbolic" : "hard", new, existing);
|
|
|
|
return (GOOD);
|
|
|
|
}
|
|
|
|
|
1997-03-11 12:55:19 +00:00
|
|
|
/*
|
|
|
|
* Create a whiteout.
|
|
|
|
*/
|
|
|
|
int
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|
|
|
addwhiteout(name)
|
|
|
|
char *name;
|
|
|
|
{
|
|
|
|
|
|
|
|
if (!Nflag && mknod(name, S_IFWHT, 0) < 0) {
|
|
|
|
fprintf(stderr, "warning: cannot create whiteout %s: %s\n",
|
|
|
|
name, strerror(errno));
|
|
|
|
return (FAIL);
|
|
|
|
}
|
|
|
|
vprintf(stdout, "Create whiteout %s\n", name);
|
|
|
|
return (GOOD);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Delete a whiteout.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
delwhiteout(ep)
|
2002-03-20 17:55:10 +00:00
|
|
|
struct entry *ep;
|
1997-03-11 12:55:19 +00:00
|
|
|
{
|
|
|
|
char *name;
|
|
|
|
|
|
|
|
if (ep->e_type != LEAF)
|
|
|
|
badentry(ep, "delwhiteout: not a leaf");
|
|
|
|
ep->e_flags |= REMOVED;
|
|
|
|
ep->e_flags &= ~TMPNAME;
|
|
|
|
name = myname(ep);
|
|
|
|
if (!Nflag && undelete(name) < 0) {
|
|
|
|
fprintf(stderr, "warning: cannot delete whiteout %s: %s\n",
|
|
|
|
name, strerror(errno));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
vprintf(stdout, "Delete whiteout %s\n", name);
|
|
|
|
}
|
|
|
|
|
1994-05-26 06:35:07 +00:00
|
|
|
/*
|
|
|
|
* find lowest number file (above "start") that needs to be extracted
|
|
|
|
*/
|
|
|
|
ino_t
|
|
|
|
lowerbnd(start)
|
|
|
|
ino_t start;
|
|
|
|
{
|
2002-03-20 17:55:10 +00:00
|
|
|
struct entry *ep;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
|
|
|
for ( ; start < maxino; start++) {
|
|
|
|
ep = lookupino(start);
|
|
|
|
if (ep == NULL || ep->e_type == NODE)
|
|
|
|
continue;
|
|
|
|
if (ep->e_flags & (NEW|EXTRACT))
|
|
|
|
return (start);
|
|
|
|
}
|
|
|
|
return (start);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* find highest number file (below "start") that needs to be extracted
|
|
|
|
*/
|
|
|
|
ino_t
|
|
|
|
upperbnd(start)
|
|
|
|
ino_t start;
|
|
|
|
{
|
2002-03-20 17:55:10 +00:00
|
|
|
struct entry *ep;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
|
|
|
for ( ; start > ROOTINO; start--) {
|
|
|
|
ep = lookupino(start);
|
|
|
|
if (ep == NULL || ep->e_type == NODE)
|
|
|
|
continue;
|
|
|
|
if (ep->e_flags & (NEW|EXTRACT))
|
|
|
|
return (start);
|
|
|
|
}
|
|
|
|
return (start);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* report on a badly formed entry
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
badentry(ep, msg)
|
2002-03-20 17:55:10 +00:00
|
|
|
struct entry *ep;
|
1994-05-26 06:35:07 +00:00
|
|
|
char *msg;
|
|
|
|
{
|
|
|
|
|
|
|
|
fprintf(stderr, "bad entry: %s\n", msg);
|
|
|
|
fprintf(stderr, "name: %s\n", myname(ep));
|
|
|
|
fprintf(stderr, "parent name %s\n", myname(ep->e_parent));
|
|
|
|
if (ep->e_sibling != NULL)
|
|
|
|
fprintf(stderr, "sibling name: %s\n", myname(ep->e_sibling));
|
|
|
|
if (ep->e_entries != NULL)
|
|
|
|
fprintf(stderr, "next entry name: %s\n", myname(ep->e_entries));
|
|
|
|
if (ep->e_links != NULL)
|
|
|
|
fprintf(stderr, "next link name: %s\n", myname(ep->e_links));
|
|
|
|
if (ep->e_next != NULL)
|
|
|
|
fprintf(stderr,
|
|
|
|
"next hashchain name: %s\n", myname(ep->e_next));
|
|
|
|
fprintf(stderr, "entry type: %s\n",
|
|
|
|
ep->e_type == NODE ? "NODE" : "LEAF");
|
1998-06-28 20:25:59 +00:00
|
|
|
fprintf(stderr, "inode number: %lu\n", (u_long)ep->e_ino);
|
1994-05-26 06:35:07 +00:00
|
|
|
panic("flags: %s\n", flagvalues(ep));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Construct a string indicating the active flag bits of an entry.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
flagvalues(ep)
|
2002-03-20 17:55:10 +00:00
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struct entry *ep;
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1994-05-26 06:35:07 +00:00
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{
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static char flagbuf[BUFSIZ];
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(void) strcpy(flagbuf, "|NIL");
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flagbuf[0] = '\0';
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if (ep->e_flags & REMOVED)
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(void) strcat(flagbuf, "|REMOVED");
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if (ep->e_flags & TMPNAME)
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(void) strcat(flagbuf, "|TMPNAME");
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if (ep->e_flags & EXTRACT)
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(void) strcat(flagbuf, "|EXTRACT");
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if (ep->e_flags & NEW)
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(void) strcat(flagbuf, "|NEW");
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if (ep->e_flags & KEEP)
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(void) strcat(flagbuf, "|KEEP");
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if (ep->e_flags & EXISTED)
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(void) strcat(flagbuf, "|EXISTED");
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return (&flagbuf[1]);
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}
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/*
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* Check to see if a name is on a dump tape.
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*/
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ino_t
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dirlookup(name)
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const char *name;
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{
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struct direct *dp;
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ino_t ino;
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1995-05-30 06:12:45 +00:00
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1994-05-26 06:35:07 +00:00
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ino = ((dp = pathsearch(name)) == NULL) ? 0 : dp->d_ino;
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if (ino == 0 || TSTINO(ino, dumpmap) == 0)
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fprintf(stderr, "%s is not on the tape\n", name);
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return (ino);
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}
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/*
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* Elicit a reply.
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*/
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int
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reply(question)
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char *question;
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{
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2000-12-12 12:04:02 +00:00
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int c;
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1994-05-26 06:35:07 +00:00
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do {
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fprintf(stderr, "%s? [yn] ", question);
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(void) fflush(stderr);
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c = getc(terminal);
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while (c != '\n' && getc(terminal) != '\n')
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2000-12-12 12:04:02 +00:00
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if (c == EOF)
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1994-05-26 06:35:07 +00:00
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return (FAIL);
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} while (c != 'y' && c != 'n');
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if (c == 'y')
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return (GOOD);
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return (FAIL);
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}
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/*
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* handle unexpected inconsistencies
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*/
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#if __STDC__
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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void
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#if __STDC__
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panic(const char *fmt, ...)
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#else
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panic(fmt, va_alist)
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char *fmt;
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|
va_dcl
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|
|
#endif
|
|
|
|
{
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|
|
va_list ap;
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|
|
#if __STDC__
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|
|
va_start(ap, fmt);
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#else
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va_start(ap);
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#endif
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|
|
vfprintf(stderr, fmt, ap);
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|
if (yflag)
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|
return;
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|
|
if (reply("abort") == GOOD) {
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|
|
if (reply("dump core") == GOOD)
|
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|
|
abort();
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|
|
done(1);
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|
}
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|
}
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