393 lines
11 KiB
C
393 lines
11 KiB
C
/* $NetBSD: create.c,v 1.11 1996/09/05 09:24:19 mycroft Exp $ */
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/* $OpenBSD: create.c,v 1.32 2016/08/16 16:41:46 krw Exp $ */
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/*-
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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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#include <sys/stat.h>
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#include <time.h>
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#include <fcntl.h>
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#include <fts.h>
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#include <dirent.h>
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#include <grp.h>
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#include <pwd.h>
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#include <errno.h>
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#include <unistd.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <vis.h>
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#include <md5.h>
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#include <rmd160.h>
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#include <sha1.h>
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#include <sha2.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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extern u_int32_t crc_total;
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extern int ftsoptions;
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extern int dflag, iflag, nflag, sflag;
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extern u_int keys;
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extern char fullpath[PATH_MAX];
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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 void output(int, int *, const char *, ...)
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__attribute__((__format__ (printf, 3, 4)));
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static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *);
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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 clock;
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char *argv[2], host[HOST_NAME_MAX+1];
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int indent = 0;
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(void)time(&clock);
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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#\t tree: %s\n#\t date: %s",
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getlogin(), host, fullpath, ctime(&clock));
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argv[0] = ".";
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argv[1] = NULL;
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if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
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error("fts_open: %s", strerror(errno));
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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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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);
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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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(void)fprintf(stderr, "mtree: %s: %s\n",
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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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(void)fprintf(stderr,
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"mtree: %s checksum: %u\n", fullpath, 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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u_int32_t len, val;
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int fd, offset;
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char *name, *escaped_name;
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size_t esc_len;
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esc_len = p->fts_namelen * 4 + 1;
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escaped_name = malloc(esc_len);
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if (escaped_name == NULL)
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error("statf: %s", strerror(errno));
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strnvis(escaped_name, p->fts_name, esc_len,
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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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if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) {
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output(indent, &offset, "uname=%s", pw->pw_name);
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} else {
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error("could not get uname for uid=%u",
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p->fts_statp->st_uid);
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}
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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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if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) {
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output(indent, &offset, "gname=%s", gr->gr_name);
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} else {
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error("could not get gname for gid=%u",
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p->fts_statp->st_gid);
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}
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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 && S_ISREG(p->fts_statp->st_mode))
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output(indent, &offset, "size=%lld",
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(long long)p->fts_statp->st_size);
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if (keys & F_TIME)
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#ifdef __OpenBSD__
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output(indent, &offset, "time=%lld.%ld",
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(long long)p->fts_statp->st_mtimespec.tv_sec,
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p->fts_statp->st_mtimespec.tv_nsec);
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#else
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output(indent, &offset, "time=%lld.%ld",
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(long long)p->fts_statp->st_mtim.tv_sec,
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p->fts_statp->st_mtim.tv_nsec);
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#endif
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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, MTREE_O_FLAGS, 0)) < 0 ||
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crc(fd, &val, &len))
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error("%s: %s", p->fts_accpath, strerror(errno));
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(void)close(fd);
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output(indent, &offset, "cksum=%u", val);
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}
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if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
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char *md5digest, buf[MD5_DIGEST_STRING_LENGTH];
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md5digest = MD5File(p->fts_accpath,buf);
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if (!md5digest)
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error("%s: %s", p->fts_accpath, strerror(errno));
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else
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output(indent, &offset, "md5digest=%s", md5digest);
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}
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if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
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char *rmd160digest, buf[RMD160_DIGEST_STRING_LENGTH];
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rmd160digest = RMD160File(p->fts_accpath,buf);
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if (!rmd160digest)
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error("%s: %s", p->fts_accpath, strerror(errno));
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else
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output(indent, &offset, "rmd160digest=%s", rmd160digest);
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}
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if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
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char *sha1digest, buf[SHA1_DIGEST_STRING_LENGTH];
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sha1digest = SHA1File(p->fts_accpath,buf);
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if (!sha1digest)
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error("%s: %s", p->fts_accpath, strerror(errno));
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else
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output(indent, &offset, "sha1digest=%s", sha1digest);
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}
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if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
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char *sha256digest, buf[SHA256_DIGEST_STRING_LENGTH];
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sha256digest = SHA256File(p->fts_accpath,buf);
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if (!sha256digest)
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error("%s: %s", p->fts_accpath, strerror(errno));
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else
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output(indent, &offset, "sha256digest=%s", sha256digest);
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}
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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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name = rlink(p->fts_accpath);
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esc_len = strlen(name) * 4 + 1;
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escaped_name = malloc(esc_len);
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if (escaped_name == NULL)
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error("statf: %s", strerror(errno));
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strnvis(escaped_name, name, esc_len, VIS_WHITE | VIS_OCTAL);
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output(indent, &offset, "link=%s", escaped_name);
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free(escaped_name);
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}
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#ifdef HAVE_CHFLAGS
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if (keys & F_FLAGS && !S_ISLNK(p->fts_statp->st_mode)) {
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char *file_flags;
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file_flags = fflagstostr(p->fts_statp->st_flags);
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if (file_flags == NULL)
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error("%s", strerror(errno));
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if (*file_flags != '\0')
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output(indent, &offset, "flags=%s", file_flags);
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else
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output(indent, &offset, "flags=none");
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free(file_flags);
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}
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#endif
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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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static int
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statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode)
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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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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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int maxgid;
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int maxuid;
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u_short maxmode;
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gid_t g[MAXGID];
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uid_t u[MAXUID];
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mode_t m[MAXMODE];
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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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error("%s: %s", RP(parent), strerror(errno));
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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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maxuid = maxgid = maxmode = 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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}
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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)) || (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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if ((pw = getpwuid(saveuid)) != NULL)
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(void)printf(" uname=%s", pw->pw_name);
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else
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error("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=%u", saveuid);
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if (keys & F_GNAME) {
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if ((gr = getgrgid(savegid)) != NULL)
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(void)printf(" gname=%s", gr->gr_name);
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else
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error("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=%u", 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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(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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}
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return (0);
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}
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int
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dsort(const FTSENT **a, const FTSENT **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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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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