minix/usr.sbin/mtree/compare.c
Thomas Veerman d433a56288 Import NetBSD mtree
mtree is only used for cross compilation at this point. Also, the
required patches to make it compile on Minix cripple it probably
enough to make it unusable anyway.
2012-06-18 10:54:49 +00:00

535 lines
13 KiB
C

/* $NetBSD: compare.c,v 1.52 2008/12/28 19:36:30 christos Exp $ */
/*-
* Copyright (c) 1989, 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. 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.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
#if 0
static char sccsid[] = "@(#)compare.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: compare.c,v 1.52 2008/12/28 19:36:30 christos Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#ifndef NO_MD5
#include <md5.h>
#endif
#ifndef NO_RMD160
#include <rmd160.h>
#endif
#ifndef NO_SHA1
#include <sha1.h>
#endif
#ifndef NO_SHA2
#include <sha2.h>
#endif
#include "extern.h"
#define INDENTNAMELEN 8
#define MARK \
do { \
len = printf("%s: ", RP(p)); \
if (len > INDENTNAMELEN) { \
tab = "\t"; \
printf("\n"); \
} else { \
tab = ""; \
printf("%*s", INDENTNAMELEN - (int)len, ""); \
} \
} while (0)
#define LABEL if (!label++) MARK
#if HAVE_STRUCT_STAT_ST_FLAGS
#define CHANGEFLAGS \
if (flags != p->fts_statp->st_flags) { \
char *sf; \
if (!label) { \
MARK; \
sf = flags_to_string(p->fts_statp->st_flags, "none"); \
printf("%sflags (\"%s\"", tab, sf); \
free(sf); \
} \
if (lchflags(p->fts_accpath, flags)) { \
label++; \
printf(", not modified: %s)\n", \
strerror(errno)); \
} else { \
sf = flags_to_string(flags, "none"); \
printf(", modified to \"%s\")\n", sf); \
free(sf); \
} \
}
/* SETFLAGS:
* given pflags, additionally set those flags specified in s->st_flags and
* selected by mask (the other flags are left unchanged).
*/
#define SETFLAGS(pflags, mask) \
do { \
flags = (s->st_flags & (mask)) | (pflags); \
CHANGEFLAGS; \
} while (0)
/* CLEARFLAGS:
* given pflags, reset the flags specified in s->st_flags and selected by mask
* (the other flags are left unchanged).
*/
#define CLEARFLAGS(pflags, mask) \
do { \
flags = (~(s->st_flags & (mask)) & CH_MASK) & (pflags); \
CHANGEFLAGS; \
} while (0)
#endif /* HAVE_STRUCT_STAT_ST_FLAGS */
int
compare(NODE *s, FTSENT *p)
{
u_int32_t len, val, flags;
int fd, label;
const char *cp, *tab;
#if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
char *digestbuf;
#endif
tab = NULL;
label = 0;
switch(s->type) {
case F_BLOCK:
if (!S_ISBLK(p->fts_statp->st_mode))
goto typeerr;
break;
case F_CHAR:
if (!S_ISCHR(p->fts_statp->st_mode))
goto typeerr;
break;
case F_DIR:
if (!S_ISDIR(p->fts_statp->st_mode))
goto typeerr;
break;
case F_FIFO:
if (!S_ISFIFO(p->fts_statp->st_mode))
goto typeerr;
break;
case F_FILE:
if (!S_ISREG(p->fts_statp->st_mode))
goto typeerr;
break;
case F_LINK:
if (!S_ISLNK(p->fts_statp->st_mode))
goto typeerr;
break;
#ifdef S_ISSOCK
case F_SOCK:
if (!S_ISSOCK(p->fts_statp->st_mode))
goto typeerr;
break;
#endif
typeerr: LABEL;
printf("\ttype (%s, %s)\n",
nodetype(s->type), inotype(p->fts_statp->st_mode));
return (label);
}
if (mtree_Wflag)
goto afterpermwhack;
#if HAVE_STRUCT_STAT_ST_FLAGS && !defined(__minix)
if (iflag && !uflag) {
if (s->flags & F_FLAGS)
SETFLAGS(p->fts_statp->st_flags, SP_FLGS);
return (label);
}
if (mflag && !uflag) {
if (s->flags & F_FLAGS)
CLEARFLAGS(p->fts_statp->st_flags, SP_FLGS);
return (label);
}
#endif
if (s->flags & F_DEV &&
(s->type == F_BLOCK || s->type == F_CHAR) &&
s->st_rdev != p->fts_statp->st_rdev) {
LABEL;
printf("%sdevice (%#llx, %#llx",
tab, (long long)s->st_rdev,
(long long)p->fts_statp->st_rdev);
if (uflag) {
#ifndef __minix
if ((unlink(p->fts_accpath) == -1) ||
(mknod(p->fts_accpath,
s->st_mode | nodetoino(s->type),
s->st_rdev) == -1) ||
(lchown(p->fts_accpath, p->fts_statp->st_uid,
p->fts_statp->st_gid) == -1) )
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
#endif
} else
printf(")\n");
tab = "\t";
}
/* Set the uid/gid first, then set the mode. */
if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
LABEL;
printf("%suser (%lu, %lu",
tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
if (uflag) {
#ifndef __minix
if (lchown(p->fts_accpath, s->st_uid, -1))
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
#endif
} else
printf(")\n");
tab = "\t";
}
if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
LABEL;
printf("%sgid (%lu, %lu",
tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
if (uflag) {
#ifndef __minix
if (lchown(p->fts_accpath, -1, s->st_gid))
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
#endif
}
else
printf(")\n");
tab = "\t";
}
if (s->flags & F_MODE &&
s->st_mode != (p->fts_statp->st_mode & MBITS)) {
if (lflag) {
mode_t tmode, mode;
tmode = s->st_mode;
mode = p->fts_statp->st_mode & MBITS;
/*
* if none of the suid/sgid/etc bits are set,
* then if the mode is a subset of the target,
* skip.
*/
if (!((tmode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) ||
(mode & ~(S_IRWXU|S_IRWXG|S_IRWXO))))
if ((mode | tmode) == tmode)
goto skip;
}
LABEL;
printf("%spermissions (%#lo, %#lo",
tab, (u_long)s->st_mode,
(u_long)p->fts_statp->st_mode & MBITS);
if (uflag) {
#ifndef __minix
if (lchmod(p->fts_accpath, s->st_mode))
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
#endif
}
else
printf(")\n");
tab = "\t";
skip: ;
}
if (s->flags & F_NLINK && s->type != F_DIR &&
s->st_nlink != p->fts_statp->st_nlink) {
LABEL;
printf("%slink count (%lu, %lu)\n",
tab, (u_long)s->st_nlink, (u_long)p->fts_statp->st_nlink);
tab = "\t";
}
if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) {
LABEL;
printf("%ssize (%lld, %lld)\n",
tab, (long long)s->st_size,
(long long)p->fts_statp->st_size);
tab = "\t";
}
/*
* XXX
* Since utimes(2) only takes a timeval, there's no point in
* comparing the low bits of the timespec nanosecond field. This
* will only result in mismatches that we can never fix.
*
* Doesn't display microsecond differences.
*/
if (s->flags & F_TIME) {
struct timeval tv[2];
struct stat *ps = p->fts_statp;
time_t smtime = s->st_mtimespec.tv_sec;
#if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
time_t pmtime = ps->st_mtimespec.tv_sec;
TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec);
TIMESPEC_TO_TIMEVAL(&tv[1], &ps->st_mtimespec);
#else
time_t pmtime = (time_t)ps->st_mtime;
tv[0].tv_sec = smtime;
tv[0].tv_usec = 0;
tv[1].tv_sec = pmtime;
tv[1].tv_usec = 0;
#endif
if (tv[0].tv_sec != tv[1].tv_sec ||
tv[0].tv_usec != tv[1].tv_usec) {
LABEL;
printf("%smodification time (%.24s, ",
tab, ctime(&smtime));
printf("%.24s", ctime(&pmtime));
if (tflag) {
#ifndef __minix
tv[1] = tv[0];
if (utimes(p->fts_accpath, tv))
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
#endif
} else
printf(")\n");
tab = "\t";
}
}
#if HAVE_STRUCT_STAT_ST_FLAGS && !defined(__minix)
/*
* XXX
* since lchflags(2) will reset file times, the utimes() above
* may have been useless! oh well, we'd rather have correct
* flags, rather than times?
*/
if ((s->flags & F_FLAGS) && ((s->st_flags != p->fts_statp->st_flags)
|| mflag || iflag)) {
if (s->st_flags != p->fts_statp->st_flags) {
char *f_s;
LABEL;
f_s = flags_to_string(s->st_flags, "none");
printf("%sflags (\"%s\" is not ", tab, f_s);
free(f_s);
f_s = flags_to_string(p->fts_statp->st_flags, "none");
printf("\"%s\"", f_s);
free(f_s);
}
if (uflag) {
if (iflag)
SETFLAGS(0, CH_MASK);
else if (mflag)
CLEARFLAGS(0, SP_FLGS);
else
SETFLAGS(0, (~SP_FLGS & CH_MASK));
} else
printf(")\n");
tab = "\t";
}
#endif /* HAVE_STRUCT_STAT_ST_FLAGS */
/*
* from this point, no more permission checking or whacking
* occurs, only checking of stuff like checksums and symlinks.
*/
afterpermwhack:
if (s->flags & F_CKSUM) {
if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
LABEL;
printf("%scksum: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else if (crc(fd, &val, &len)) {
close(fd);
LABEL;
printf("%scksum: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
close(fd);
if (s->cksum != val) {
LABEL;
printf("%scksum (%lu, %lu)\n",
tab, s->cksum, (unsigned long)val);
}
tab = "\t";
}
}
#ifndef NO_MD5
if (s->flags & F_MD5) {
if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%smd5: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->md5digest, digestbuf)) {
LABEL;
printf("%smd5 (0x%s, 0x%s)\n",
tab, s->md5digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
#endif /* ! NO_MD5 */
#ifndef NO_RMD160
if (s->flags & F_RMD160) {
if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%srmd160: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->rmd160digest, digestbuf)) {
LABEL;
printf("%srmd160 (0x%s, 0x%s)\n",
tab, s->rmd160digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
#endif /* ! NO_RMD160 */
#ifndef NO_SHA1
if (s->flags & F_SHA1) {
if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%ssha1: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->sha1digest, digestbuf)) {
LABEL;
printf("%ssha1 (0x%s, 0x%s)\n",
tab, s->sha1digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
#endif /* ! NO_SHA1 */
#ifndef NO_SHA2
if (s->flags & F_SHA256) {
if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%ssha256: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->sha256digest, digestbuf)) {
LABEL;
printf("%ssha256 (0x%s, 0x%s)\n",
tab, s->sha256digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
if (s->flags & F_SHA384) {
if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%ssha384: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->sha384digest, digestbuf)) {
LABEL;
printf("%ssha384 (0x%s, 0x%s)\n",
tab, s->sha384digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
if (s->flags & F_SHA512) {
if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) {
LABEL;
printf("%ssha512: %s: %s\n",
tab, p->fts_accpath, strerror(errno));
tab = "\t";
} else {
if (strcmp(s->sha512digest, digestbuf)) {
LABEL;
printf("%ssha512 (0x%s, 0x%s)\n",
tab, s->sha512digest, digestbuf);
}
tab = "\t";
free(digestbuf);
}
}
#endif /* ! NO_SHA2 */
if (s->flags & F_SLINK &&
strcmp(cp = rlink(p->fts_accpath), s->slink)) {
LABEL;
printf("%slink ref (%s, %s", tab, cp, s->slink);
if (uflag) {
if ((unlink(p->fts_accpath) == -1) ||
(symlink(s->slink, p->fts_accpath) == -1) )
printf(", not modified: %s)\n",
strerror(errno));
else
printf(", modified)\n");
} else
printf(")\n");
}
return (label);
}
const char *
rlink(const char *name)
{
static char lbuf[MAXPATHLEN];
int len;
if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1)
mtree_err("%s: %s", name, strerror(errno));
lbuf[len] = '\0';
return (lbuf);
}