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minix/usr.sbin/mtree/create.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

423 lines
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/* $NetBSD: create.c,v 1.58 2009/04/03 21:18:59 apb 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[] = "@(#)create.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: create.c,v 1.58 2009/04/03 21:18:59 apb Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
#if ! HAVE_NBTOOL_CONFIG_H
#include <dirent.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <stdarg.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 15
#define MAXLINELEN 80
static gid_t gid;
static uid_t uid;
static mode_t mode;
static u_long flags;
static int dcmp(const FTSENT **, const FTSENT **);
static void output(int *, const char *, ...)
__attribute__((__format__(__printf__, 2, 3)));
static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *);
static void statf(FTSENT *);
void
cwalk(void)
{
FTS *t;
FTSENT *p;
time_t clocktime;
char host[MAXHOSTNAMELEN + 1];
const char *user;
char *argv[2];
char dot[] = ".";
argv[0] = dot;
argv[1] = NULL;
time(&clocktime);
gethostname(host, sizeof(host));
host[sizeof(host) - 1] = '\0';
if ((user = getlogin()) == NULL) {
struct passwd *pw;
user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name :
"<unknown>";
}
printf(
"#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s",
user, host, fullpath, ctime(&clocktime));
if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL)
mtree_err("fts_open: %s", strerror(errno));
while ((p = fts_read(t)) != NULL) {
if (check_excludes(p->fts_name, p->fts_path)) {
fts_set(t, p, FTS_SKIP);
continue;
}
switch(p->fts_info) {
case FTS_D:
printf("\n# %s\n", p->fts_path);
statd(t, p, &uid, &gid, &mode, &flags);
statf(p);
break;
case FTS_DP:
if (p->fts_level > 0)
printf("# %s\n..\n\n", p->fts_path);
break;
case FTS_DNR:
case FTS_ERR:
case FTS_NS:
mtree_err("%s: %s",
p->fts_path, strerror(p->fts_errno));
break;
default:
if (!dflag)
statf(p);
break;
}
}
fts_close(t);
if (sflag && keys & F_CKSUM)
mtree_err("%s checksum: %u", fullpath, crc_total);
}
static void
statf(FTSENT *p)
{
u_int32_t len, val;
int fd, indent;
const char *name;
#if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
char *digestbuf;
#endif
indent = printf("%s%s",
S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name));
if (indent > INDENTNAMELEN)
indent = MAXLINELEN;
else
indent += printf("%*s", INDENTNAMELEN - indent, "");
if (!S_ISREG(p->fts_statp->st_mode))
output(&indent, "type=%s", inotype(p->fts_statp->st_mode));
if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
if (keys & F_UNAME &&
(name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL)
output(&indent, "uname=%s", name);
else /* if (keys & F_UID) */
output(&indent, "uid=%u", p->fts_statp->st_uid);
}
if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
if (keys & F_GNAME &&
(name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL)
output(&indent, "gname=%s", name);
else /* if (keys & F_GID) */
output(&indent, "gid=%u", p->fts_statp->st_gid);
}
if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS);
if (keys & F_DEV &&
(S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode)))
output(&indent, "device=%#llx",
(long long)p->fts_statp->st_rdev);
if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
output(&indent, "nlink=%u", p->fts_statp->st_nlink);
if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode))
output(&indent, "size=%lld", (long long)p->fts_statp->st_size);
if (keys & F_TIME)
#if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
output(&indent, "time=%ld.%ld",
(long)p->fts_statp->st_mtimespec.tv_sec,
p->fts_statp->st_mtimespec.tv_nsec);
#else
output(&indent, "time=%ld.%ld",
(long)p->fts_statp->st_mtime, (long)0);
#endif
if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
crc(fd, &val, &len))
mtree_err("%s: %s", p->fts_accpath, strerror(errno));
close(fd);
output(&indent, "cksum=%lu", (long)val);
}
#ifndef NO_MD5
if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: MD5File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "md5=%s", digestbuf);
free(digestbuf);
}
#endif /* ! NO_MD5 */
#ifndef NO_RMD160
if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: RMD160File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "rmd160=%s", digestbuf);
free(digestbuf);
}
#endif /* ! NO_RMD160 */
#ifndef NO_SHA1
if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: SHA1File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "sha1=%s", digestbuf);
free(digestbuf);
}
#endif /* ! NO_SHA1 */
#ifndef NO_SHA2
if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "sha256=%s", digestbuf);
free(digestbuf);
}
if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "sha384=%s", digestbuf);
free(digestbuf);
}
if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) {
if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL)
mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, strerror(errno));
output(&indent, "sha512=%s", digestbuf);
free(digestbuf);
}
#endif /* ! NO_SHA2 */
if (keys & F_SLINK &&
(p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
output(&indent, "link=%s", vispath(rlink(p->fts_accpath)));
#if HAVE_STRUCT_STAT_ST_FLAGS
if (keys & F_FLAGS && p->fts_statp->st_flags != flags)
output(&indent, "flags=%s",
flags_to_string(p->fts_statp->st_flags, "none"));
#endif
putchar('\n');
}
/* XXX
* FLAGS2INDEX will fail once the user and system settable bits need more
* than one byte, respectively.
*/
#define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff))
#define MTREE_MAXGID 5000
#define MTREE_MAXUID 5000
#define MTREE_MAXMODE (MBITS + 1)
#if HAVE_STRUCT_STAT_ST_FLAGS
#define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
#else
#define MTREE_MAXFLAGS 1
#endif
#define MTREE_MAXS 16
static int
statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
u_long *pflags)
{
FTSENT *p;
gid_t sgid;
uid_t suid;
mode_t smode;
u_long sflags = 0;
const char *name;
gid_t savegid;
uid_t saveuid;
mode_t savemode;
u_long saveflags;
u_short maxgid, maxuid, maxmode, maxflags;
u_short g[MTREE_MAXGID], u[MTREE_MAXUID],
m[MTREE_MAXMODE], f[MTREE_MAXFLAGS];
static int first = 1;
savegid = *pgid;
saveuid = *puid;
savemode = *pmode;
saveflags = *pflags;
if ((p = fts_children(t, 0)) == NULL) {
if (errno)
mtree_err("%s: %s", RP(parent), strerror(errno));
return (1);
}
memset(g, 0, sizeof(g));
memset(u, 0, sizeof(u));
memset(m, 0, sizeof(m));
memset(f, 0, sizeof(f));
maxuid = maxgid = maxmode = maxflags = 0;
for (; p; p = p->fts_link) {
smode = p->fts_statp->st_mode & MBITS;
if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) {
savemode = smode;
maxmode = m[smode];
}
sgid = p->fts_statp->st_gid;
if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
savegid = sgid;
maxgid = g[sgid];
}
suid = p->fts_statp->st_uid;
if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
saveuid = suid;
maxuid = u[suid];
}
#if HAVE_STRUCT_STAT_ST_FLAGS
sflags = FLAGS2INDEX(p->fts_statp->st_flags);
if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
saveflags = p->fts_statp->st_flags;
maxflags = f[sflags];
}
#endif
}
/*
* If the /set record is the same as the last one we do not need to
* output a new one. So first we check to see if anything changed.
* Note that we always output a /set record for the first directory.
*/
if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) ||
((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) ||
((keys & F_MODE) && (*pmode != savemode)) ||
((keys & F_FLAGS) && (*pflags != saveflags)) ||
first) {
first = 0;
printf("/set type=file");
if (keys & (F_UID | F_UNAME)) {
if (keys & F_UNAME &&
(name = user_from_uid(saveuid, 1)) != NULL)
printf(" uname=%s", name);
else /* if (keys & F_UID) */
printf(" uid=%lu", (u_long)saveuid);
}
if (keys & (F_GID | F_GNAME)) {
if (keys & F_GNAME &&
(name = group_from_gid(savegid, 1)) != NULL)
printf(" gname=%s", name);
else /* if (keys & F_UID) */
printf(" gid=%lu", (u_long)savegid);
}
if (keys & F_MODE)
printf(" mode=%#lo", (u_long)savemode);
if (keys & F_NLINK)
printf(" nlink=1");
if (keys & F_FLAGS)
printf(" flags=%s",
flags_to_string(saveflags, "none"));
printf("\n");
*puid = saveuid;
*pgid = savegid;
*pmode = savemode;
*pflags = saveflags;
}
return (0);
}
/*
* dcmp --
* used as a comparison function passed to fts_open() to control
* the order in which fts_read() returns results. We make
* directories sort after non-directories, but otherwise sort in
* strcmp() order.
*
* Keep this in sync with nodecmp() in spec.c.
*/
static int
dcmp(const FTSENT **a, const FTSENT **b)
{
if (S_ISDIR((*a)->fts_statp->st_mode)) {
if (!S_ISDIR((*b)->fts_statp->st_mode))
return (1);
} else if (S_ISDIR((*b)->fts_statp->st_mode))
return (-1);
return (strcmp((*a)->fts_name, (*b)->fts_name));
}
void
output(int *offset, const char *fmt, ...)
{
va_list ap;
char buf[1024];
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
if (*offset + strlen(buf) > MAXLINELEN - 3) {
printf(" \\\n%*s", INDENTNAMELEN, "");
*offset = INDENTNAMELEN;
}
*offset += printf(" %s", buf) + 1;
}
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