2dfa4b66b3
This is addressing cases such as fts_read(3) encountering an [EIO] from fchdir(2) when FTS_NOCHDIR is not set. That would otherwise be seen as a successful traversal in some of these cases while silently discarding expected work. As noted in r264201, fts_read() does not set errno to 0 on a successful EOF so it needs to be set before calling it. Otherwise we might see a random error from one of the iterations. gzip is ignoring most errors and could be improved separately. Reviewed by: vangyzen Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D27184
310 lines
7.5 KiB
C
310 lines
7.5 KiB
C
/* $NetBSD: verify.c,v 1.44 2013/02/03 19:15:17 christos Exp $ */
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/*-
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* Copyright (c) 1990, 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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#endif
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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[] = "@(#)verify.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: verify.c,v 1.44 2013/02/03 19:15:17 christos 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/stat.h>
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#if ! HAVE_NBTOOL_CONFIG_H
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#include <dirent.h>
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#endif
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#include <errno.h>
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#include <fnmatch.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "extern.h"
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static NODE *root;
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static char path[MAXPATHLEN];
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static void miss(NODE *, char *);
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static int vwalk(void);
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int
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verify(FILE *fi)
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{
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int rval;
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root = spec(fi);
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rval = vwalk();
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miss(root, path);
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return (rval);
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}
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static int
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vwalk(void)
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{
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FTS *t;
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FTSENT *p;
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NODE *ep, *level;
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int specdepth, rval;
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char *argv[2];
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char dot[] = ".";
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argv[0] = dot;
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argv[1] = NULL;
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if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
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mtree_err("fts_open: %s", strerror(errno));
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level = root;
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specdepth = rval = 0;
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while (errno = 0, (p = fts_read(t)) != NULL) {
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if (check_excludes(p->fts_name, p->fts_path)) {
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fts_set(t, p, FTS_SKIP);
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continue;
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}
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if (!find_only(p->fts_path)) {
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fts_set(t, p, FTS_SKIP);
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continue;
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}
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switch(p->fts_info) {
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case FTS_D:
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case FTS_SL:
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break;
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case FTS_DP:
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if (specdepth > p->fts_level) {
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for (level = level->parent; level->prev;
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level = level->prev)
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continue;
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--specdepth;
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}
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continue;
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case FTS_DNR:
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case FTS_ERR:
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case FTS_NS:
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warnx("%s: %s", RP(p), strerror(p->fts_errno));
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continue;
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default:
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if (dflag)
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continue;
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}
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if (specdepth != p->fts_level)
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goto extra;
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for (ep = level; ep; ep = ep->next)
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if ((ep->flags & F_MAGIC &&
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!fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
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!strcmp(ep->name, p->fts_name)) {
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ep->flags |= F_VISIT;
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if ((ep->flags & F_NOCHANGE) == 0 &&
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compare(ep, p))
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rval = MISMATCHEXIT;
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if (!(ep->flags & F_IGN) &&
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ep->type == F_DIR &&
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p->fts_info == FTS_D) {
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if (ep->child) {
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level = ep->child;
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++specdepth;
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}
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} else
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fts_set(t, p, FTS_SKIP);
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break;
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}
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if (ep)
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continue;
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extra:
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if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
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printf("extra: %s", RP(p));
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if (rflag) {
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if ((S_ISDIR(p->fts_statp->st_mode)
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? rmdir : unlink)(p->fts_accpath)) {
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printf(", not removed: %s",
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strerror(errno));
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} else
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printf(", removed");
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}
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putchar('\n');
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}
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fts_set(t, p, FTS_SKIP);
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}
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if (errno != 0)
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mtree_err("fts_read: %s", strerror(errno));
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fts_close(t);
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if (sflag)
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warnx("%s checksum: %u", fullpath, crc_total);
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return (rval);
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}
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static void
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miss(NODE *p, char *tail)
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{
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int create;
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char *tp;
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const char *type;
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u_int32_t flags;
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for (; p; p = p->next) {
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if (p->flags & F_OPT && !(p->flags & F_VISIT))
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continue;
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if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
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continue;
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strcpy(tail, p->name);
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if (!(p->flags & F_VISIT)) {
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/* Don't print missing message if file exists as a
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symbolic link and the -q flag is set. */
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struct stat statbuf;
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if (qflag && stat(path, &statbuf) == 0 &&
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S_ISDIR(statbuf.st_mode))
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p->flags |= F_VISIT;
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else
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(void)printf("%s missing", path);
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}
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switch (p->type) {
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case F_BLOCK:
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case F_CHAR:
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type = "device";
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break;
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case F_DIR:
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type = "directory";
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break;
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case F_LINK:
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type = "symlink";
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break;
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default:
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putchar('\n');
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continue;
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}
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create = 0;
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if (!(p->flags & F_VISIT) && uflag) {
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if (mtree_Wflag || p->type == F_LINK)
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goto createit;
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if (!(p->flags & (F_UID | F_UNAME)))
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printf(
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" (%s not created: user not specified)", type);
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else if (!(p->flags & (F_GID | F_GNAME)))
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printf(
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" (%s not created: group not specified)", type);
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else if (!(p->flags & F_MODE))
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printf(
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" (%s not created: mode not specified)", type);
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else
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createit:
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switch (p->type) {
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case F_BLOCK:
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case F_CHAR:
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if (mtree_Wflag)
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continue;
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if (!(p->flags & F_DEV))
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printf(
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" (%s not created: device not specified)",
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type);
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else if (mknod(path,
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p->st_mode | nodetoino(p->type),
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p->st_rdev) == -1)
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printf(" (%s not created: %s)\n",
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type, strerror(errno));
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else
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create = 1;
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break;
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case F_LINK:
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if (!(p->flags & F_SLINK))
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printf(
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" (%s not created: link not specified)\n",
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type);
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else if (symlink(p->slink, path))
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printf(
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" (%s not created: %s)\n",
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type, strerror(errno));
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else
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create = 1;
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break;
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case F_DIR:
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if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
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printf(" (not created: %s)",
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strerror(errno));
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else
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create = 1;
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break;
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default:
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mtree_err("can't create create %s",
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nodetype(p->type));
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}
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}
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if (create)
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printf(" (created)");
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if (p->type == F_DIR) {
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if (!(p->flags & F_VISIT))
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putchar('\n');
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for (tp = tail; *tp; ++tp)
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continue;
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*tp = '/';
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miss(p->child, tp + 1);
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*tp = '\0';
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} else
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putchar('\n');
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if (!create || mtree_Wflag)
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continue;
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if ((p->flags & (F_UID | F_UNAME)) &&
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(p->flags & (F_GID | F_GNAME)) &&
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(lchown(path, p->st_uid, p->st_gid))) {
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printf("%s: user/group/mode not modified: %s\n",
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path, strerror(errno));
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printf("%s: warning: file mode %snot set\n", path,
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(p->flags & F_FLAGS) ? "and file flags " : "");
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continue;
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}
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if (p->flags & F_MODE) {
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if (lchmod(path, p->st_mode))
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printf("%s: permissions not set: %s\n",
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path, strerror(errno));
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}
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#if HAVE_STRUCT_STAT_ST_FLAGS
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if ((p->flags & F_FLAGS) && p->st_flags) {
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if (iflag)
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flags = p->st_flags;
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else
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flags = p->st_flags & ~SP_FLGS;
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if (lchflags(path, flags))
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printf("%s: file flags not set: %s\n",
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path, strerror(errno));
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}
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#endif /* HAVE_STRUCT_STAT_ST_FLAGS */
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}
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}
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