9feaf24750
This ensures that the value written is both compatible with older mtree versions (which expect the value after the period to be an integer count of nanoseconds after the whole second) and is a correct floating-point value. Leave the parsing code unchanged so it will continue to read older files.
429 lines
11 KiB
C
429 lines
11 KiB
C
/*-
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* Copyright (c) 1989, 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 0
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#ifndef lint
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static char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fts.h>
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#include <grp.h>
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#ifdef MD5
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#include <md5.h>
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#endif
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#ifdef SHA1
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#include <sha.h>
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#endif
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#ifdef RMD160
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#include <ripemd.h>
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#endif
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#ifdef SHA256
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#include <sha256.h>
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#endif
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#include <pwd.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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#include <vis.h>
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#include "mtree.h"
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#include "extern.h"
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#define INDENTNAMELEN 15
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#define MAXLINELEN 80
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static gid_t gid;
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static uid_t uid;
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static mode_t mode;
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static u_long flags = 0xffffffff;
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static int dsort(const FTSENT * const *, const FTSENT * const *);
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static void output(int, int *, const char *, ...) __printflike(3, 4);
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static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *);
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static void statf(int, FTSENT *);
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void
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cwalk(void)
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{
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FTS *t;
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FTSENT *p;
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time_t cl;
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char *argv[2], host[MAXHOSTNAMELEN];
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char dot[] = ".";
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int indent = 0;
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if (!nflag) {
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(void)time(&cl);
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(void)gethostname(host, sizeof(host));
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(void)printf(
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"#\t user: %s\n#\tmachine: %s\n",
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getlogin(), host);
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(void)printf(
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"#\t tree: %s\n#\t date: %s",
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fullpath, ctime(&cl));
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}
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argv[0] = dot;
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argv[1] = NULL;
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if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
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err(1, "fts_open()");
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while ((p = fts_read(t))) {
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if (iflag)
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indent = p->fts_level * 4;
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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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switch(p->fts_info) {
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case FTS_D:
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if (!dflag)
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(void)printf("\n");
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if (!nflag)
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(void)printf("# %s\n", p->fts_path);
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statd(t, p, &uid, &gid, &mode, &flags);
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statf(indent, p);
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break;
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case FTS_DP:
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if (!nflag && (p->fts_level > 0))
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(void)printf("%*s# %s\n", indent, "", p->fts_path);
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(void)printf("%*s..\n", indent, "");
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if (!dflag)
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(void)printf("\n");
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break;
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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", p->fts_path, strerror(p->fts_errno));
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break;
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default:
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if (!dflag)
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statf(indent, p);
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break;
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}
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}
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(void)fts_close(t);
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if (sflag && keys & F_CKSUM)
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warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
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}
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static void
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statf(int indent, FTSENT *p)
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{
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struct group *gr;
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struct passwd *pw;
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uint32_t val;
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off_t len;
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int fd, offset;
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char *fflags;
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char *escaped_name;
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escaped_name = calloc(1, p->fts_namelen * 4 + 1);
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if (escaped_name == NULL)
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errx(1, "statf(): calloc() failed");
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strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL | VIS_GLOB);
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if (iflag || S_ISDIR(p->fts_statp->st_mode))
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offset = printf("%*s%s", indent, "", escaped_name);
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else
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offset = printf("%*s %s", indent, "", escaped_name);
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free(escaped_name);
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if (offset > (INDENTNAMELEN + indent))
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offset = MAXLINELEN;
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else
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offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
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if (!S_ISREG(p->fts_statp->st_mode) && !dflag)
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output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode));
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if (p->fts_statp->st_uid != uid) {
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if (keys & F_UNAME) {
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pw = getpwuid(p->fts_statp->st_uid);
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if (pw != NULL)
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output(indent, &offset, "uname=%s", pw->pw_name);
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else if (wflag)
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warnx("Could not get uname for uid=%u",
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p->fts_statp->st_uid);
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else
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errx(1,
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"Could not get uname for uid=%u",
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p->fts_statp->st_uid);
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}
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if (keys & F_UID)
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output(indent, &offset, "uid=%u", p->fts_statp->st_uid);
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}
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if (p->fts_statp->st_gid != gid) {
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if (keys & F_GNAME) {
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gr = getgrgid(p->fts_statp->st_gid);
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if (gr != NULL)
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output(indent, &offset, "gname=%s", gr->gr_name);
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else if (wflag)
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warnx("Could not get gname for gid=%u",
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p->fts_statp->st_gid);
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else
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errx(1,
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"Could not get gname for gid=%u",
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p->fts_statp->st_gid);
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}
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if (keys & F_GID)
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output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
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}
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if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
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output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS);
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if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
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output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
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if (keys & F_SIZE)
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output(indent, &offset, "size=%jd",
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(intmax_t)p->fts_statp->st_size);
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if (keys & F_TIME)
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output(indent, &offset, "time=%ld.%09ld",
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(long)p->fts_statp->st_mtimespec.tv_sec,
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p->fts_statp->st_mtimespec.tv_nsec);
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if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
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if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
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crc(fd, &val, &len))
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err(1, "%s", p->fts_accpath);
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(void)close(fd);
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output(indent, &offset, "cksum=%lu", (unsigned long)val);
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}
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#ifdef MD5
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if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
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char *digest, buf[33];
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digest = MD5File(p->fts_accpath, buf);
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if (!digest)
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err(1, "%s", p->fts_accpath);
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output(indent, &offset, "md5digest=%s", digest);
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}
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#endif /* MD5 */
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#ifdef SHA1
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if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
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char *digest, buf[41];
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digest = SHA1_File(p->fts_accpath, buf);
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if (!digest)
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err(1, "%s", p->fts_accpath);
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output(indent, &offset, "sha1digest=%s", digest);
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}
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#endif /* SHA1 */
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#ifdef RMD160
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if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
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char *digest, buf[41];
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digest = RIPEMD160_File(p->fts_accpath, buf);
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if (!digest)
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err(1, "%s", p->fts_accpath);
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output(indent, &offset, "ripemd160digest=%s", digest);
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}
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#endif /* RMD160 */
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#ifdef SHA256
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if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
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char *digest, buf[65];
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digest = SHA256_File(p->fts_accpath, buf);
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if (!digest)
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err(1, "%s", p->fts_accpath);
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output(indent, &offset, "sha256digest=%s", digest);
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}
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#endif /* SHA256 */
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if (keys & F_SLINK &&
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(p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
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output(indent, &offset, "link=%s", rlink(p->fts_accpath));
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if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
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fflags = flags_to_string(p->fts_statp->st_flags);
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output(indent, &offset, "flags=%s", fflags);
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free(fflags);
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}
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(void)putchar('\n');
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}
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#define MAXGID 5000
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#define MAXUID 5000
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#define MAXMODE MBITS + 1
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#define MAXFLAGS 256
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#define MAXS 16
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static int
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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;
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gid_t sgid;
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uid_t suid;
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mode_t smode;
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u_long sflags;
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struct group *gr;
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struct passwd *pw;
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gid_t savegid = *pgid;
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uid_t saveuid = *puid;
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mode_t savemode = *pmode;
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u_long saveflags = *pflags;
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u_short maxgid, maxuid, maxmode, maxflags;
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u_short g[MAXGID], u[MAXUID], m[MAXMODE], f[MAXFLAGS];
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char *fflags;
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static int first = 1;
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if ((p = fts_children(t, 0)) == NULL) {
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if (errno)
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err(1, "%s", RP(parent));
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return (1);
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}
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bzero(g, sizeof(g));
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bzero(u, sizeof(u));
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bzero(m, sizeof(m));
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bzero(f, sizeof(f));
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maxuid = maxgid = maxmode = maxflags = 0;
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for (; p; p = p->fts_link) {
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if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) {
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smode = p->fts_statp->st_mode & MBITS;
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if (smode < MAXMODE && ++m[smode] > maxmode) {
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savemode = smode;
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maxmode = m[smode];
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}
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sgid = p->fts_statp->st_gid;
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if (sgid < MAXGID && ++g[sgid] > maxgid) {
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savegid = sgid;
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maxgid = g[sgid];
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}
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suid = p->fts_statp->st_uid;
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if (suid < MAXUID && ++u[suid] > maxuid) {
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saveuid = suid;
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maxuid = u[suid];
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}
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/*
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* XXX
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* note that the below will break when file flags
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* are extended beyond the first 4 bytes of each
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* half word of the flags
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*/
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#define FLAGS2IDX(f) ((f & 0xf) | ((f >> 12) & 0xf0))
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sflags = p->fts_statp->st_flags;
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if (FLAGS2IDX(sflags) < MAXFLAGS &&
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++f[FLAGS2IDX(sflags)] > maxflags) {
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saveflags = sflags;
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maxflags = f[FLAGS2IDX(sflags)];
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}
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}
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}
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/*
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* If the /set record is the same as the last one we do not need to output
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* a new one. So first we check to see if anything changed. Note that we
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* always output a /set record for the first directory.
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*/
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if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) ||
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(((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) ||
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((keys & F_MODE) && (*pmode != savemode)) ||
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((keys & F_FLAGS) && (*pflags != saveflags)) ||
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(first)) {
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first = 0;
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if (dflag)
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(void)printf("/set type=dir");
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else
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(void)printf("/set type=file");
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if (keys & F_UNAME) {
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pw = getpwuid(saveuid);
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if (pw != NULL)
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(void)printf(" uname=%s", pw->pw_name);
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else if (wflag)
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warnx( "Could not get uname for uid=%u", saveuid);
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else
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errx(1, "Could not get uname for uid=%u", saveuid);
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}
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if (keys & F_UID)
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(void)printf(" uid=%lu", (u_long)saveuid);
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if (keys & F_GNAME) {
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gr = getgrgid(savegid);
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if (gr != NULL)
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(void)printf(" gname=%s", gr->gr_name);
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else if (wflag)
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warnx("Could not get gname for gid=%u", savegid);
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else
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errx(1, "Could not get gname for gid=%u", savegid);
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}
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if (keys & F_GID)
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(void)printf(" gid=%lu", (u_long)savegid);
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if (keys & F_MODE)
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(void)printf(" mode=%#o", savemode);
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if (keys & F_NLINK)
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(void)printf(" nlink=1");
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if (keys & F_FLAGS) {
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fflags = flags_to_string(saveflags);
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(void)printf(" flags=%s", fflags);
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free(fflags);
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}
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(void)printf("\n");
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*puid = saveuid;
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*pgid = savegid;
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*pmode = savemode;
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*pflags = saveflags;
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}
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return (0);
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}
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static int
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dsort(const FTSENT * const *a, const FTSENT * const *b)
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{
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if (S_ISDIR((*a)->fts_statp->st_mode)) {
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if (!S_ISDIR((*b)->fts_statp->st_mode))
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return (1);
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} else if (S_ISDIR((*b)->fts_statp->st_mode))
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return (-1);
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return (strcmp((*a)->fts_name, (*b)->fts_name));
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}
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#include <stdarg.h>
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void
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output(int indent, int *offset, const char *fmt, ...)
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{
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va_list ap;
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char buf[1024];
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va_start(ap, fmt);
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(void)vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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if (*offset + strlen(buf) > MAXLINELEN - 3) {
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(void)printf(" \\\n%*s", INDENTNAMELEN + indent, "");
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*offset = INDENTNAMELEN + indent;
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}
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*offset += printf(" %s", buf) + 1;
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}
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