mtree/create.c

   1 /*-
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifndef lint
  35 #if 0
  36 static char sccsid[] = "@(#)create.c    8.1 (Berkeley) 6/6/93";
  37 #endif
  38 static const char rcsid[] =
  39   "$FreeBSD: src/usr.sbin/mtree/create.c,v 1.18.2.3 2001/01/12 19:17:18 phk Exp $";
  40 #endif /* not lint */
  41
  42 #include <sys/param.h>
  43 #include <sys/stat.h>
  44 #include <dirent.h>
  45 #include <err.h>
  46 #include <errno.h>
  47 #include <fcntl.h>
  48 #include <fts.h>
  49 #include <grp.h>
  50 #ifdef MD5
  51 #include <md5.h>
  52 #endif
  53 #ifdef SHA1
  54 #include <sha.h>
  55 #endif
  56 #ifdef RMD160
  57 #include <ripemd.h>
  58 #endif
  59 #include <pwd.h>
  60 #include <stdio.h>
  61 #include <time.h>
  62 #include <unistd.h>
  63 #include <vis.h>
  64 #include "mtree.h"
  65 #include "extern.h"
  66
  67 #define INDENTNAMELEN   15
  68 #define MAXLINELEN      80
  69
  70 extern long int crc_total;
  71 extern int ftsoptions;
  72 extern int dflag, iflag, nflag, sflag;
  73 extern u_int keys;
  74 extern char fullpath[MAXPATHLEN];
  75 extern int lineno;
  76
  77 static gid_t gid;
  78 static uid_t uid;
  79 static mode_t mode;
  80 static u_long flags = 0xffffffff;
  81
  82 static int      dsort __P((const FTSENT **, const FTSENT **));
  83 static void     output __P((int, int *, const char *, ...));
  84 static int      statd __P((FTS *, FTSENT *, uid_t *, gid_t *, mode_t *,
  85                            u_long *));
  86 static void     statf __P((int, FTSENT *));
  87
  88 void
  89 cwalk()
  90 {
  91         register FTS *t;
  92         register FTSENT *p;
  93         time_t clock;
  94         char *argv[2], host[MAXHOSTNAMELEN];
  95         int indent = 0;
  96
  97         (void)time(&clock);
  98         (void)gethostname(host, sizeof(host));
  99         (void)printf(
 100             "#\t   user: %s\n#\tmachine: %s\n#\t   tree: %s\n#\t   date: %s",
 101             getlogin(), host, fullpath, ctime(&clock));
 102
 103         argv[0] = ".";
 104         argv[1] = NULL;
 105         if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
 106                 err(1, "line %d: fts_open", lineno);
 107         while ((p = fts_read(t))) {
 108                 if (iflag)
 109                         indent = p->fts_level * 4;
 110                 if (check_excludes(p->fts_name, p->fts_path)) {
 111                         fts_set(t, p, FTS_SKIP);
 112                         continue;
 113                 }
 114                 switch(p->fts_info) {
 115                 case FTS_D:
 116                         if (!dflag)
 117                                 (void)printf("\n");
 118                         if (!nflag)
 119                                 (void)printf("# %s\n", p->fts_path);
 120                         statd(t, p, &uid, &gid, &mode, &flags);
 121                         statf(indent, p);
 122                         break;
 123                 case FTS_DP:
 124                         if (!nflag && (p->fts_level > 0))
 125                                 (void)printf("%*s# %s\n", indent, "", p->fts_path);
 126                         (void)printf("%*s..\n", indent, "");
 127                         if (!dflag)
 128                                 (void)printf("\n");
 129                         break;
 130                 case FTS_DNR:
 131                 case FTS_ERR:
 132                 case FTS_NS:
 133                         warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
 134                         break;
 135                 default:
 136                         if (!dflag)
 137                                 statf(indent, p);
 138                         break;
 139
 140                 }
 141         }
 142         (void)fts_close(t);
 143         if (sflag && keys & F_CKSUM)
 144                 warnx("%s checksum: %lu", fullpath, crc_total);
 145 }
 146
 147 static void
 148 statf(indent, p)
 149         int indent;
 150         FTSENT *p;
 151 {
 152         struct group *gr;
 153         struct passwd *pw;
 154         u_long len, val;
 155         int fd, offset;
 156         char *fflags;
 157         char *escaped_name;
 158
 159         escaped_name = calloc(1, p->fts_namelen * 4  +  1);
 160         if (escaped_name == NULL)
 161                 errx(1, "statf(): calloc() failed");
 162         strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL);
 163
 164         if (iflag || S_ISDIR(p->fts_statp->st_mode))
 165                 offset = printf("%*s%s", indent, "", escaped_name);
 166         else
 167                 offset = printf("%*s    %s", indent, "", escaped_name);
 168
 169         free(escaped_name);
 170
 171         if (offset > (INDENTNAMELEN + indent))
 172                 offset = MAXLINELEN;
 173         else
 174                 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
 175
 176         if (!S_ISREG(p->fts_statp->st_mode) && !dflag)
 177                 output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode));
 178         if (p->fts_statp->st_uid != uid) {
 179                 if (keys & F_UNAME) {
 180                         if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) {
 181                                 output(indent, &offset, "uname=%s", pw->pw_name);
 182                         } else {
 183                                 errx(1,
 184                                 "line %d: could not get uname for uid=%u",
 185                                 lineno, p->fts_statp->st_uid);
 186                         }
 187                 }
 188                 if (keys & F_UID)
 189                         output(indent, &offset, "uid=%u", p->fts_statp->st_uid);
 190         }
 191         if (p->fts_statp->st_gid != gid) {
 192                 if (keys & F_GNAME) {
 193                         if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) {
 194                                 output(indent, &offset, "gname=%s", gr->gr_name);
 195                         } else {
 196                                 errx(1,
 197                                 "line %d: could not get gname for gid=%u",
 198                                 lineno, p->fts_statp->st_gid);
 199                         }
 200                 }
 201                 if (keys & F_GID)
 202                         output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
 203         }
 204         if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
 205                 output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS);
 206         if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
 207                 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
 208         if (keys & F_SIZE)
 209                 output(indent, &offset, "size=%qd", p->fts_statp->st_size);
 210         if (keys & F_TIME)
 211                 output(indent, &offset, "time=%ld.%ld",
 212                     p->fts_statp->st_mtimespec.tv_sec,
 213                     p->fts_statp->st_mtimespec.tv_nsec);
 214         if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
 215                 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
 216                     crc(fd, &val, &len))
 217                         err(1, "line %d: %s", lineno, p->fts_accpath);
 218                 (void)close(fd);
 219                 output(indent, &offset, "cksum=%lu", val);
 220         }
 221 #ifdef MD5
 222         if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
 223                 char *digest, buf[33];
 224
 225                 digest = MD5File(p->fts_accpath, buf);
 226                 if (!digest) {
 227                         err(1, "line %d: %s", lineno, p->fts_accpath);
 228                 } else {
 229                         output(indent, &offset, "md5digest=%s", digest);
 230                 }
 231         }
 232 #endif /* MD5 */
 233 #ifdef SHA1
 234         if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
 235                 char *digest, buf[41];
 236
 237                 digest = SHA1_File(p->fts_accpath, buf);
 238                 if (!digest) {
 239                         err(1, "line %d: %s", lineno, p->fts_accpath);
 240                 } else {
 241                         output(indent, &offset, "sha1digest=%s", digest);
 242                 }
 243         }
 244 #endif /* SHA1 */
 245 #ifdef RMD160
 246         if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
 247                 char *digest, buf[41];
 248
 249                 digest = RIPEMD160_File(p->fts_accpath, buf);
 250                 if (!digest) {
 251                         err(1, "line %d: %s", lineno, p->fts_accpath);
 252                 } else {
 253                         output(indent, &offset, "ripemd160digest=%s", digest);
 254                 }
 255         }
 256 #endif /* RMD160 */
 257         if (keys & F_SLINK &&
 258             (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
 259                 output(indent, &offset, "link=%s", rlink(p->fts_accpath));
 260         if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
 261                 fflags = flags_to_string(p->fts_statp->st_flags);
 262                 output(indent, &offset, "flags=%s", fflags);
 263                 free(fflags);
 264         }
 265         (void)putchar('\n');
 266 }
 267
 268 #define MAXGID  5000
 269 #define MAXUID  5000
 270 #define MAXMODE MBITS + 1
 271 #define MAXFLAGS 256
 272 #define MAXS 16
 273
 274 static int
 275 statd(t, parent, puid, pgid, pmode, pflags)
 276         FTS *t;
 277         FTSENT *parent;
 278         uid_t *puid;
 279         gid_t *pgid;
 280         mode_t *pmode;
 281         u_long *pflags;
 282 {
 283         register FTSENT *p;
 284         register gid_t sgid;
 285         register uid_t suid;
 286         register mode_t smode;
 287         register u_long sflags;
 288         struct group *gr;
 289         struct passwd *pw;
 290         gid_t savegid = *pgid;
 291         uid_t saveuid = *puid;
 292         mode_t savemode = *pmode;
 293         u_long saveflags = *pflags;
 294         u_short maxgid, maxuid, maxmode, maxflags;
 295         u_short g[MAXGID], u[MAXUID], m[MAXMODE], f[MAXFLAGS];
 296         char *fflags;
 297         static int first = 1;
 298
 299         if ((p = fts_children(t, 0)) == NULL) {
 300                 if (errno)
 301                         err(1, "line %d: %s", lineno, RP(parent));
 302                 return (1);
 303         }
 304
 305         bzero(g, sizeof(g));
 306         bzero(u, sizeof(u));
 307         bzero(m, sizeof(m));
 308         bzero(f, sizeof(f));
 309
 310         maxuid = maxgid = maxmode = maxflags = 0;
 311         for (; p; p = p->fts_link) {
 312                 if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) {
 313                         smode = p->fts_statp->st_mode & MBITS;
 314                         if (smode < MAXMODE && ++m[smode] > maxmode) {
 315                                 savemode = smode;
 316                                 maxmode = m[smode];
 317                         }
 318                         sgid = p->fts_statp->st_gid;
 319                         if (sgid < MAXGID && ++g[sgid] > maxgid) {
 320                                 savegid = sgid;
 321                                 maxgid = g[sgid];
 322                         }
 323                         suid = p->fts_statp->st_uid;
 324                         if (suid < MAXUID && ++u[suid] > maxuid) {
 325                                 saveuid = suid;
 326                                 maxuid = u[suid];
 327                         }
 328
 329                         /*
 330                          * XXX
 331                          * note that the below will break when file flags
 332                          * are extended beyond the first 4 bytes of each
 333                          * half word of the flags
 334                          */
 335 #define FLAGS2IDX(f) ((f & 0xf) | ((f >> 12) & 0xf0))
 336                         sflags = p->fts_statp->st_flags;
 337                         if (FLAGS2IDX(sflags) < MAXFLAGS &&
 338                             ++f[FLAGS2IDX(sflags)] > maxflags) {
 339                                 saveflags = sflags;
 340                                 maxflags = f[FLAGS2IDX(sflags)];
 341                         }
 342                 }
 343         }
 344         /*
 345          * If the /set record is the same as the last one we do not need to output
 346          * a new one.  So first we check to see if anything changed.  Note that we
 347          * always output a /set record for the first directory.
 348          */
 349         if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) ||
 350             (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) ||
 351             ((keys & F_MODE) && (*pmode != savemode)) ||
 352             ((keys & F_FLAGS) && (*pflags != saveflags)) ||
 353             (first)) {
 354                 first = 0;
 355                 if (dflag)
 356                         (void)printf("/set type=dir");
 357                 else
 358                         (void)printf("/set type=file");
 359                 if (keys & F_UNAME) {
 360                         if ((pw = getpwuid(saveuid)) != NULL)
 361                                 (void)printf(" uname=%s", pw->pw_name);
 362                         else
 363                                 errx(1,
 364                                 "line %d: could not get uname for uid=%u",
 365                                 lineno, saveuid);
 366                 }
 367                 if (keys & F_UID)
 368                         (void)printf(" uid=%lu", (u_long)saveuid);
 369                 if (keys & F_GNAME) {
 370                         if ((gr = getgrgid(savegid)) != NULL)
 371                                 (void)printf(" gname=%s", gr->gr_name);
 372                         else
 373                                 errx(1,
 374                                 "line %d: could not get gname for gid=%u",
 375                                 lineno, savegid);
 376                 }
 377                 if (keys & F_GID)
 378                         (void)printf(" gid=%lu", (u_long)savegid);
 379                 if (keys & F_MODE)
 380                         (void)printf(" mode=%#o", savemode);
 381                 if (keys & F_NLINK)
 382                         (void)printf(" nlink=1");
 383                 if (keys & F_FLAGS) {
 384                         fflags = flags_to_string(saveflags);
 385                         (void)printf(" flags=%s", fflags);
 386                         free(fflags);
 387                 }
 388                 (void)printf("\n");
 389                 *puid = saveuid;
 390                 *pgid = savegid;
 391                 *pmode = savemode;
 392                 *pflags = saveflags;
 393         }
 394         return (0);
 395 }
 396
 397 static int
 398 dsort(a, b)
 399         const FTSENT **a, **b;
 400 {
 401         if (S_ISDIR((*a)->fts_statp->st_mode)) {
 402                 if (!S_ISDIR((*b)->fts_statp->st_mode))
 403                         return (1);
 404         } else if (S_ISDIR((*b)->fts_statp->st_mode))
 405                 return (-1);
 406         return (strcmp((*a)->fts_name, (*b)->fts_name));
 407 }
 408
 409 #if __STDC__
 410 #include <stdarg.h>
 411 #else
 412 #include <varargs.h>
 413 #endif
 414
 415 void
 416 #if __STDC__
 417 output(int indent, int *offset, const char *fmt, ...)
 418 #else
 419 output(indent, offset, fmt, va_alist)
 420         int indent;
 421         int *offset;
 422         char *fmt;
 423         va_dcl
 424 #endif
 425 {
 426         va_list ap;
 427         char buf[1024];
 428 #if __STDC__
 429         va_start(ap, fmt);
 430 #else
 431         va_start(ap);
 432 #endif
 433         (void)vsnprintf(buf, sizeof(buf), fmt, ap);
 434         va_end(ap);
 435
 436         if (*offset + strlen(buf) > MAXLINELEN - 3) {
 437                 (void)printf(" \\\n%*s", INDENTNAMELEN + indent, "");
 438                 *offset = INDENTNAMELEN + indent;
 439         }
 440         *offset += printf(" %s", buf) + 1;
 441 }