mtree/create.c

   1 /*      $NetBSD: create.c,v 1.16 1998/08/30 03:20:09 nathanw Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1989, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 #if 0
  39 static char sccsid[] = "@(#)create.c    8.1 (Berkeley) 6/6/93";
  40 #else
  41 __RCSID("$NetBSD: create.c,v 1.16 1998/08/30 03:20:09 nathanw Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <sys/param.h>
  46 #include <sys/stat.h>
  47 #include <dirent.h>
  48 #include <errno.h>
  49 #include <fcntl.h>
  50 #include <fts.h>
  51 #include <grp.h>
  52 #include <pwd.h>
  53 #include <stdio.h>
  54 #include <string.h>
  55 #include <time.h>
  56 #include <unistd.h>
  57 #include "mtree.h"
  58 #include "extern.h"
  59
  60 #define INDENTNAMELEN   15
  61 #define MAXLINELEN      80
  62
  63 extern int crc_total, ftsoptions;
  64 extern int dflag, sflag;
  65 extern u_short keys;
  66 extern char fullpath[MAXPATHLEN];
  67
  68 static gid_t gid;
  69 static uid_t uid;
  70 static mode_t mode;
  71
  72 static int      dsort __P((const FTSENT **, const FTSENT **));
  73 static void     output __P((int *, const char *, ...));
  74 static int      statd __P((FTS *, FTSENT *, uid_t *, gid_t *, mode_t *));
  75 static void     statf __P((FTSENT *));
  76
  77 void
  78 cwalk()
  79 {
  80         FTS *t;
  81         FTSENT *p;
  82         time_t clock;
  83         char *argv[2], host[MAXHOSTNAMELEN + 1];
  84
  85         (void)time(&clock);
  86         (void)gethostname(host, sizeof(host));
  87         host[sizeof(host) - 1] = '\0';
  88         (void)printf(
  89             "#\t   user: %s\n#\tmachine: %s\n#\t   tree: %s\n#\t   date: %s",
  90             getlogin(), host, fullpath, ctime(&clock));
  91
  92         argv[0] = ".";
  93         argv[1] = NULL;
  94         if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
  95                 mtree_err("fts_open: %s", strerror(errno));
  96         while ((p = fts_read(t)) != NULL)
  97                 switch(p->fts_info) {
  98                 case FTS_D:
  99                         (void)printf("\n# %s\n", p->fts_path);
 100                         statd(t, p, &uid, &gid, &mode);
 101                         statf(p);
 102                         break;
 103                 case FTS_DP:
 104                         if (p->fts_level > 0)
 105                                 (void)printf("# %s\n..\n\n", p->fts_path);
 106                         break;
 107                 case FTS_DNR:
 108                 case FTS_ERR:
 109                 case FTS_NS:
 110                         (void)fprintf(stderr,
 111                             "mtree: %s: %s\n", p->fts_path, strerror(errno));
 112                         break;
 113                 default:
 114                         if (!dflag)
 115                                 statf(p);
 116                         break;
 117
 118                 }
 119         (void)fts_close(t);
 120         if (sflag && keys & F_CKSUM)
 121                 (void)fprintf(stderr,
 122                     "mtree: %s checksum: %u\n", fullpath, crc_total);
 123 }
 124
 125 static void
 126 statf(p)
 127         FTSENT *p;
 128 {
 129         struct group *gr;
 130         struct passwd *pw;
 131         u_int32_t len, val;
 132         int fd, indent;
 133
 134         if (S_ISDIR(p->fts_statp->st_mode))
 135                 indent = printf("%s", p->fts_name);
 136         else
 137                 indent = printf("    %s", p->fts_name);
 138
 139         if (indent > INDENTNAMELEN)
 140                 indent = MAXLINELEN;
 141         else
 142                 indent += printf("%*s", INDENTNAMELEN - indent, "");
 143
 144         if (!S_ISREG(p->fts_statp->st_mode))
 145                 output(&indent, "type=%s", inotype(p->fts_statp->st_mode));
 146         if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
 147                 if (keys & F_UNAME && (pw = getpwuid(p->fts_statp->st_uid)))
 148                         output(&indent, "uname=%s", pw->pw_name);
 149                 else /* if (keys & F_UID) */
 150                         output(&indent, "uid=%u", p->fts_statp->st_uid);
 151         }
 152         if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
 153                 if (keys & F_GNAME && (gr = getgrgid(p->fts_statp->st_gid)))
 154                         output(&indent, "gname=%s", gr->gr_name);
 155                 else /* if (keys & F_GID) */
 156                         output(&indent, "gid=%u", p->fts_statp->st_gid);
 157         }
 158         if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
 159                 output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS);
 160         if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
 161                 output(&indent, "nlink=%u", p->fts_statp->st_nlink);
 162         if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode))
 163                 output(&indent, "size=%qd", p->fts_statp->st_size);
 164         if (keys & F_TIME)
 165                 output(&indent, "time=%ld.%ld",
 166                     p->fts_statp->st_mtimespec.tv_sec,
 167                     p->fts_statp->st_mtimespec.tv_nsec);
 168         if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
 169                 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
 170                     crc(fd, &val, &len))
 171                         mtree_err("%s: %s", p->fts_accpath, strerror(errno));
 172                 (void)close(fd);
 173                 output(&indent, "cksum=%lu", val);
 174         }
 175         if (keys & F_SLINK &&
 176             (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
 177                 output(&indent, "link=%s", rlink(p->fts_accpath));
 178         (void)putchar('\n');
 179 }
 180
 181 #define MAXGID  5000
 182 #define MAXUID  5000
 183 #define MAXMODE MBITS + 1
 184
 185 static int
 186 statd(t, parent, puid, pgid, pmode)
 187         FTS *t;
 188         FTSENT *parent;
 189         uid_t *puid;
 190         gid_t *pgid;
 191         mode_t *pmode;
 192 {
 193         FTSENT *p;
 194         gid_t sgid;
 195         uid_t suid;
 196         mode_t smode;
 197         struct group *gr;
 198         struct passwd *pw;
 199         gid_t savegid;
 200         uid_t saveuid;
 201         mode_t savemode;
 202         u_short maxgid, maxuid, maxmode, g[MAXGID], u[MAXUID], m[MAXMODE];
 203
 204         savegid = 0;
 205         saveuid = 0;
 206         savemode = 0;
 207         if ((p = fts_children(t, 0)) == NULL) {
 208                 if (errno)
 209                         mtree_err("%s: %s", RP(parent), strerror(errno));
 210                 return (1);
 211         }
 212
 213         memset(g, 0, sizeof(g));
 214         memset(u, 0, sizeof(u));
 215         memset(m, 0, sizeof(m));
 216
 217         maxuid = maxgid = maxmode = 0;
 218         for (; p; p = p->fts_link) {
 219                 smode = p->fts_statp->st_mode & MBITS;
 220                 if (smode < MAXMODE && ++m[smode] > maxmode) {
 221                         savemode = smode;
 222                         maxmode = m[smode];
 223                 }
 224                 sgid = p->fts_statp->st_gid;
 225                 if (sgid < MAXGID && ++g[sgid] > maxgid) {
 226                         savegid = sgid;
 227                         maxgid = g[sgid];
 228                 }
 229                 suid = p->fts_statp->st_uid;
 230                 if (suid < MAXUID && ++u[suid] > maxuid) {
 231                         saveuid = suid;
 232                         maxuid = u[suid];
 233                 }
 234         }
 235         (void)printf("/set type=file");
 236         if (keys & F_GID)
 237                 (void)printf(" gid=%u", savegid);
 238         if (keys & F_GNAME) {
 239                 if ((gr = getgrgid(savegid)) != NULL)
 240                         (void)printf(" gname=%s", gr->gr_name);
 241                 else
 242                         (void)printf(" gid=%u", savegid);
 243         }
 244         if (keys & F_UNAME) {
 245                 if ((pw = getpwuid(saveuid)) != NULL)
 246                         (void)printf(" uname=%s", pw->pw_name);
 247                 else
 248                         (void)printf(" uid=%u", saveuid);
 249         }
 250         if (keys & F_UID)
 251                 (void)printf(" uid=%u", saveuid);
 252         if (keys & F_MODE)
 253                 (void)printf(" mode=%#o", savemode);
 254         if (keys & F_NLINK)
 255                 (void)printf(" nlink=1");
 256         (void)printf("\n");
 257         *puid = saveuid;
 258         *pgid = savegid;
 259         *pmode = savemode;
 260         return (0);
 261 }
 262
 263 static int
 264 dsort(a, b)
 265         const FTSENT **a, **b;
 266 {
 267         if (S_ISDIR((*a)->fts_statp->st_mode)) {
 268                 if (!S_ISDIR((*b)->fts_statp->st_mode))
 269                         return (1);
 270         } else if (S_ISDIR((*b)->fts_statp->st_mode))
 271                 return (-1);
 272         return (strcmp((*a)->fts_name, (*b)->fts_name));
 273 }
 274
 275 #if __STDC__
 276 #include <stdarg.h>
 277 #else
 278 #include <varargs.h>
 279 #endif
 280
 281 void
 282 #if __STDC__
 283 output(int *offset, const char *fmt, ...)
 284 #else
 285 output(offset, fmt, va_alist)
 286         int *offset;
 287         char *fmt;
 288         va_dcl
 289 #endif
 290 {
 291         va_list ap;
 292         char buf[1024];
 293 #if __STDC__
 294         va_start(ap, fmt);
 295 #else
 296         va_start(ap);
 297 #endif
 298         (void)vsnprintf(buf, sizeof(buf), fmt, ap);
 299         va_end(ap);
 300
 301         if (*offset + strlen(buf) > MAXLINELEN - 3) {
 302                 (void)printf(" \\\n%*s", INDENTNAMELEN, "");
 303                 *offset = INDENTNAMELEN;
 304         }
 305         *offset += printf(" %s", buf) + 1;
 306 }