aa09d8b564
hack, thereby allowing future extensions to the structure (e.g., for extended attributes) without rebreaking the ABI. FTSENT now contains a pointer to the parent stream, which fts_compar() can then take advantage of, avoiding the undefined behavior previously warned about. As a consequence of this change, the prototype of the comparison function passed to fts_open() has changed to reflect the required amount of constness for its use. All callers in the tree are updated to use the correct prototype. Comparison functions can now make use of the new parent pointer to access the new stream-specific private data pointer, which is intended to assist creation of reentrant library routines which use fts(3) internally. Not objected to in spirit by: -arch
428 lines
11 KiB
C
428 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#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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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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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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#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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extern long int 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[MAXPATHLEN];
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extern int lineno;
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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()
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{
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register FTS *t;
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register 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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(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#\t tree: %s\n#\t date: %s",
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getlogin(), host, fullpath, ctime(&cl));
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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, "line %d: fts_open", lineno);
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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, crc_total);
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}
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static void
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statf(indent, p)
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int indent;
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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_long len, val;
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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);
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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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errx(1,
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"line %d: could not get uname for uid=%u",
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lineno, 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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errx(1,
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"line %d: could not get gname for gid=%u",
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lineno, 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)
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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.%ld",
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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, "line %d: %s", lineno, p->fts_accpath);
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(void)close(fd);
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output(indent, &offset, "cksum=%lu", 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, "line %d: %s", lineno, p->fts_accpath);
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} else {
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output(indent, &offset, "md5digest=%s", digest);
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}
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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, "line %d: %s", lineno, p->fts_accpath);
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} else {
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output(indent, &offset, "sha1digest=%s", digest);
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}
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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, "line %d: %s", lineno, p->fts_accpath);
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} else {
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output(indent, &offset, "ripemd160digest=%s", digest);
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}
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}
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#endif /* RMD160 */
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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(t, parent, puid, pgid, pmode, pflags)
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FTS *t;
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FTSENT *parent;
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uid_t *puid;
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gid_t *pgid;
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mode_t *pmode;
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u_long *pflags;
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{
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register FTSENT *p;
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register gid_t sgid;
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register uid_t suid;
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register mode_t smode;
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register 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, "line %d: %s", lineno, 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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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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errx(1,
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"line %d: could not get uname for uid=%u",
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lineno, 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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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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errx(1,
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"line %d: could not get gname for gid=%u",
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lineno, 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(a, b)
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const FTSENT * const *a, * 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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