freebsd-src/usr.sbin/mtree/verify.c
Bruce Evans 6f4640cac6 Use p->fts_level instead of unsuccessfully trying to keep track of the
level ourself.  We failed for unreadable directories.  E.g.,
`mtree -d -f /etc/mtree/BSD.usr.dist -p /usr' run by `nobody' was
confused after it couldn't descend into /usr/games/hide.  It looked
for /usr/include and subsequent directories in /usr/games.

Don't search for `extra' files when the spec depth is less than the
fts level.  The spec depth isn't incremented for leaf nodes because
that would give a NULL level pointer and make it inconvenient to go
back to the parent level.  Leaf nodes are built for directories that
are empty in the spec.  Since they are empty in the spec, all files
in them are extra.  The search looked for files one spec level
too high, so for `mtree -d -f /etc/mtree/BSD.usr.dist -p /usr',
obj/sbin matched ./sbin and wasn't considered extra, so it was
descended into and lots of bogus extra things in it were found.
This was harmful for `mtree -U' (as reported in pr623) and worse
for `mtree -r'.

Use rmdir(), not unlink(), to remove `extra' directories.  unlink()
succeeds for root but unlinking directories normally damages the
file system.

Report `fts_errno' instead of `errno' when the former applies.
1995-07-24 02:52:42 +00:00

206 lines
5.4 KiB
C

/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)verify.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fts.h>
#include <fnmatch.h>
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include "mtree.h"
#include "extern.h"
extern long int crc_total;
extern int ftsoptions;
extern int dflag, eflag, rflag, sflag, uflag;
extern char fullpath[MAXPATHLEN];
static NODE *root;
static char path[MAXPATHLEN];
static void miss __P((NODE *, char *));
static int vwalk __P((void));
int
verify()
{
int rval;
root = spec();
rval = vwalk();
miss(root, path);
return (rval);
}
static int
vwalk()
{
register FTS *t;
register FTSENT *p;
register NODE *ep, *level;
int specdepth, rval;
char *argv[2];
argv[0] = ".";
argv[1] = NULL;
if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
err("fts_open: %s", strerror(errno));
level = root;
specdepth = rval = 0;
while ((p = fts_read(t))) {
switch(p->fts_info) {
case FTS_D:
break;
case FTS_DP:
if (specdepth > p->fts_level) {
for (level = level->parent; level->prev;
level = level->prev);
--specdepth;
}
continue;
case FTS_DNR:
case FTS_ERR:
case FTS_NS:
(void)fprintf(stderr, "mtree: %s: %s\n",
RP(p), strerror(p->fts_errno));
continue;
default:
if (dflag)
continue;
}
if (specdepth != p->fts_level)
goto extra;
for (ep = level; ep; ep = ep->next)
if ((ep->flags & F_MAGIC &&
!fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
!strcmp(ep->name, p->fts_name)) {
ep->flags |= F_VISIT;
if (compare(ep->name, ep, p))
rval = MISMATCHEXIT;
if (ep->flags & F_IGN)
(void)fts_set(t, p, FTS_SKIP);
else if (ep->child && ep->type == F_DIR &&
p->fts_info == FTS_D) {
level = ep->child;
++specdepth;
}
break;
}
if (ep)
continue;
extra:
if (!eflag) {
(void)printf("extra: %s", RP(p));
if (rflag) {
if ((S_ISDIR(p->fts_statp->st_mode)
? rmdir : unlink)(p->fts_accpath)) {
(void)printf(", not removed: %s",
strerror(errno));
} else
(void)printf(", removed");
}
(void)putchar('\n');
}
(void)fts_set(t, p, FTS_SKIP);
}
(void)fts_close(t);
if (sflag)
(void)fprintf(stderr,
"mtree: %s checksum: %lu\n", fullpath, crc_total);
return (rval);
}
static void
miss(p, tail)
register NODE *p;
register char *tail;
{
register int create;
register char *tp;
for (; p; p = p->next) {
if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
continue;
(void)strcpy(tail, p->name);
if (!(p->flags & F_VISIT))
(void)printf("missing: %s", path);
if (p->type != F_DIR) {
putchar('\n');
continue;
}
create = 0;
if (!(p->flags & F_VISIT) && uflag)
if (!(p->flags & (F_UID | F_UNAME)))
(void)printf(" (not created: user not specified)");
else if (!(p->flags & (F_GID | F_GNAME)))
(void)printf(" (not created: group not specified)");
else if (!(p->flags & F_MODE))
(void)printf(" (not created: mode not specified)");
else if (mkdir(path, S_IRWXU))
(void)printf(" (not created: %s)",
strerror(errno));
else {
create = 1;
(void)printf(" (created)");
}
if (!(p->flags & F_VISIT))
(void)putchar('\n');
for (tp = tail; *tp; ++tp);
*tp = '/';
miss(p->child, tp + 1);
*tp = '\0';
if (!create)
continue;
if (chown(path, p->st_uid, p->st_gid)) {
(void)printf("%s: user/group/mode not modified: %s\n",
path, strerror(errno));
continue;
}
if (chmod(path, p->st_mode))
(void)printf("%s: permissions not set: %s\n",
path, strerror(errno));
}
}