NetBSD/usr.sbin/mtree/create.c

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/* $NetBSD: create.c,v 1.29 2001/03/09 03:09:45 simonb Exp $ */
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/*-
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* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
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*
* 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.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93";
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#else
__RCSID("$NetBSD: create.c,v 1.29 2001/03/09 03:09:45 simonb Exp $");
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#endif
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#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
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#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
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#include <fts.h>
#include <grp.h>
#include <md5.h>
#include <pwd.h>
#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
#include <time.h>
#include <unistd.h>
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#include <vis.h>
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#include "mtree.h"
#include "extern.h"
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#define INDENTNAMELEN 15
#define MAXLINELEN 80
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#define VISFLAGS VIS_CSTYLE
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extern int crc_total, ftsoptions;
extern int dflag, sflag;
extern int keys;
extern char fullpath[MAXPATHLEN];
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static gid_t gid;
static uid_t uid;
static mode_t mode;
static u_long flags;
static char codebuf[4*MAXPATHLEN + 1];
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static const char extra[] = { ' ', '\t', '\n', '\\', '#', '\0' };
static int dsort(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)
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{
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FTS *t;
FTSENT *p;
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time_t clock;
char *argv[2], host[MAXHOSTNAMELEN + 1];
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(void)time(&clock);
(void)gethostname(host, sizeof(host));
host[sizeof(host) - 1] = '\0';
(void)printf(
"#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s",
getlogin(), host, fullpath, ctime(&clock));
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argv[0] = ".";
argv[1] = NULL;
if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
mtree_err("fts_open: %s", strerror(errno));
while ((p = fts_read(t)) != NULL)
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switch(p->fts_info) {
case FTS_D:
(void)printf("\n# %s\n", p->fts_path);
statd(t, p, &uid, &gid, &mode, &flags);
statf(p);
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break;
case FTS_DP:
if (p->fts_level > 0)
(void)printf("# %s\n..\n\n", p->fts_path);
break;
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case FTS_DNR:
case FTS_ERR:
case FTS_NS:
(void)fprintf(stderr,
"mtree: %s: %s\n", p->fts_path, strerror(errno));
break;
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default:
if (!dflag)
statf(p);
break;
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}
(void)fts_close(t);
if (sflag && keys & F_CKSUM)
(void)fprintf(stderr,
"mtree: %s checksum: %u\n", fullpath, crc_total);
}
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static void
statf(FTSENT *p)
{
struct group *gr;
struct passwd *pw;
u_int32_t len, val;
int fd, indent;
char md5buf[33], *md5cp;
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strsvis(codebuf, p->fts_name, VISFLAGS, extra);
if (S_ISDIR(p->fts_statp->st_mode))
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indent = printf("%s", codebuf);
else
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indent = printf(" %s", codebuf);
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));
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if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
if (keys & F_UNAME && (pw = getpwuid(p->fts_statp->st_uid)))
output(&indent, "uname=%s", pw->pw_name);
else /* if (keys & F_UID) */
output(&indent, "uid=%u", p->fts_statp->st_uid);
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}
if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
if (keys & F_GNAME && (gr = getgrgid(p->fts_statp->st_gid)))
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output(&indent, "gname=%s", gr->gr_name);
else /* if (keys & F_GID) */
output(&indent, "gid=%u", p->fts_statp->st_gid);
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}
if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS);
if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
output(&indent, "nlink=%u", p->fts_statp->st_nlink);
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if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode))
output(&indent, "size=%lld", (long long)p->fts_statp->st_size);
#ifdef BSD4_4
if (keys & F_TIME)
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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",
p->fts_statp->st_mtime, 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));
(void)close(fd);
output(&indent, "cksum=%lu", (long)val);
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}
if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
if ((md5cp = MD5File(p->fts_accpath, md5buf)) == NULL)
mtree_err("%s: %s", p->fts_accpath, "MD5File");
output(&indent, "md5=%s", md5cp);
}
if (keys & F_SLINK &&
(p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
output(&indent, "link=%s", rlink(p->fts_accpath));
if (keys & F_FLAGS && p->fts_statp->st_flags != flags)
output(&indent, "flags=%s",
flags_to_string(p->fts_statp->st_flags, "none"));
(void)putchar('\n');
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}
/* 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)
#define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
#define MTREE_MAXS 16
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static int
statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
u_long *pflags)
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{
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FTSENT *p;
gid_t sgid;
uid_t suid;
mode_t smode;
u_long sflags;
struct group *gr;
struct passwd *pw;
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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];
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savegid = 0;
saveuid = 0;
savemode = 0;
saveflags = 0;
if ((p = fts_children(t, 0)) == NULL) {
if (errno)
mtree_err("%s: %s", RP(parent), strerror(errno));
return (1);
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}
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memset(g, 0, sizeof(g));
memset(u, 0, sizeof(u));
memset(m, 0, sizeof(m));
memset(f, 0, sizeof(f));
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maxuid = maxgid = maxmode = maxflags = 0;
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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];
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}
sgid = p->fts_statp->st_gid;
if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
savegid = sgid;
maxgid = g[sgid];
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}
suid = p->fts_statp->st_uid;
if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
saveuid = suid;
maxuid = u[suid];
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}
sflags = FLAGS2INDEX(p->fts_statp->st_flags);
if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
saveflags = p->fts_statp->st_flags;
maxflags = f[sflags];
}
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}
(void)printf("/set type=file");
if (keys & F_GID)
(void)printf(" gid=%lu", (u_long)savegid);
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if (keys & F_GNAME) {
if ((gr = getgrgid(savegid)) != NULL)
(void)printf(" gname=%s", gr->gr_name);
else
(void)printf(" gid=%lu", (u_long)savegid);
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}
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if (keys & F_UNAME) {
if ((pw = getpwuid(saveuid)) != NULL)
(void)printf(" uname=%s", pw->pw_name);
else
(void)printf(" uid=%lu", (u_long)saveuid);
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}
if (keys & F_UID)
(void)printf(" uid=%lu", (u_long)saveuid);
if (keys & F_MODE)
(void)printf(" mode=%#lo", (u_long)savemode);
if (keys & F_NLINK)
(void)printf(" nlink=1");
if (keys & F_FLAGS)
(void)printf(" flags=%s",
flags_to_string(saveflags, "none"));
(void)printf("\n");
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*puid = saveuid;
*pgid = savegid;
*pmode = savemode;
*pflags = saveflags;
return (0);
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}
static int
dsort(const FTSENT **a, const FTSENT **b)
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{
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));
}
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void
output(int *offset, const char *fmt, ...)
{
va_list ap;
char buf[1024];
va_start(ap, fmt);
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(void)vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
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if (*offset + strlen(buf) > MAXLINELEN - 3) {
(void)printf(" \\\n%*s", INDENTNAMELEN, "");
*offset = INDENTNAMELEN;
}
*offset += printf(" %s", buf) + 1;
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}