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 * @(#)create.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.sbin/mtree/create.c,v 1.18.2.3 2001/01/12 19:17:18 phk Exp $ 35 * $DragonFly: src/usr.sbin/mtree/create.c,v 1.5 2004/03/15 16:24:22 dillon Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/stat.h> 40 #include <dirent.h> 41 #include <err.h> 42 #include <errno.h> 43 #include <fcntl.h> 44 #include <fts.h> 45 #include <grp.h> 46 #ifdef MD5 47 #include <md5.h> 48 #endif 49 #ifdef SHA1 50 #include <sha.h> 51 #endif 52 #ifdef RMD160 53 #include <ripemd.h> 54 #endif 55 #include <pwd.h> 56 #include <stdio.h> 57 #include <time.h> 58 #include <unistd.h> 59 #include <stdarg.h> 60 #include <vis.h> 61 #include "mtree.h" 62 #include "extern.h" 63 64 #define INDENTNAMELEN 15 65 #define MAXLINELEN 80 66 67 static gid_t gid; 68 static uid_t uid; 69 static mode_t mode; 70 static u_long flags = 0xffffffff; 71 72 static int dsort(const FTSENT * const *, const FTSENT * const *); 73 static void output(int, int *, const char *, ...) __printflike(3, 4); 74 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, 75 u_long *); 76 static void statf(int, FTSENT *); 77 78 void 79 cwalk(void) 80 { 81 FTS *t; 82 FTSENT *p; 83 time_t clk; 84 char *argv[2], host[MAXHOSTNAMELEN], dot[] = "."; 85 int indent = 0; 86 87 time(&clk); 88 gethostname(host, sizeof(host)); 89 printf( 90 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 91 getlogin(), host, fullpath, ctime(&clk)); 92 93 argv[0] = dot; 94 argv[1] = NULL; 95 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 96 err(1, "line %d: fts_open", lineno); 97 while ((p = fts_read(t))) { 98 if (iflag) 99 indent = p->fts_level * 4; 100 if (check_excludes(p->fts_name, p->fts_path)) { 101 fts_set(t, p, FTS_SKIP); 102 continue; 103 } 104 switch(p->fts_info) { 105 case FTS_D: 106 if (!dflag) 107 printf("\n"); 108 if (!nflag) 109 printf("# %s\n", p->fts_path); 110 statd(t, p, &uid, &gid, &mode, &flags); 111 statf(indent, p); 112 break; 113 case FTS_DP: 114 if (!nflag && (p->fts_level > 0)) 115 printf("%*s# %s\n", indent, "", p->fts_path); 116 printf("%*s..\n", indent, ""); 117 if (!dflag) 118 printf("\n"); 119 break; 120 case FTS_DNR: 121 case FTS_ERR: 122 case FTS_NS: 123 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 124 break; 125 default: 126 if (!dflag) 127 statf(indent, p); 128 break; 129 130 } 131 } 132 fts_close(t); 133 if (sflag && keys & F_CKSUM) 134 warnx("%s checksum: %lu", fullpath, crc_total); 135 } 136 137 static void 138 statf(int indent, FTSENT *p) 139 { 140 struct group *gr; 141 struct passwd *pw; 142 u_long len, val; 143 int fd, offset; 144 char *fflags; 145 char *escaped_name; 146 147 escaped_name = calloc(1, p->fts_namelen * 4 + 1); 148 if (escaped_name == NULL) 149 errx(1, "statf(): calloc() failed"); 150 strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL); 151 152 if (iflag || S_ISDIR(p->fts_statp->st_mode)) 153 offset = printf("%*s%s", indent, "", escaped_name); 154 else 155 offset = printf("%*s %s", indent, "", escaped_name); 156 157 free(escaped_name); 158 159 if (offset > (INDENTNAMELEN + indent)) 160 offset = MAXLINELEN; 161 else 162 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 163 164 if (!S_ISREG(p->fts_statp->st_mode) && !dflag) 165 output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode)); 166 if (p->fts_statp->st_uid != uid) { 167 if (keys & F_UNAME) { 168 if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) { 169 output(indent, &offset, "uname=%s", pw->pw_name); 170 } else { 171 errx(1, 172 "line %d: could not get uname for uid=%u", 173 lineno, p->fts_statp->st_uid); 174 } 175 } 176 if (keys & F_UID) 177 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 178 } 179 if (p->fts_statp->st_gid != gid) { 180 if (keys & F_GNAME) { 181 if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) { 182 output(indent, &offset, "gname=%s", gr->gr_name); 183 } else { 184 errx(1, 185 "line %d: could not get gname for gid=%u", 186 lineno, p->fts_statp->st_gid); 187 } 188 } 189 if (keys & F_GID) 190 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 191 } 192 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 193 output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS); 194 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 195 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 196 if (keys & F_SIZE) 197 output(indent, &offset, "size=%jd", 198 (uintmax_t)p->fts_statp->st_size); 199 if (keys & F_TIME) 200 output(indent, &offset, "time=%ld.%ld", 201 p->fts_statp->st_mtimespec.tv_sec, 202 p->fts_statp->st_mtimespec.tv_nsec); 203 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 204 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 205 crc(fd, &val, &len)) 206 err(1, "line %d: %s", lineno, p->fts_accpath); 207 close(fd); 208 output(indent, &offset, "cksum=%lu", val); 209 } 210 #ifdef MD5 211 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 212 char *digest, buf[33]; 213 214 digest = MD5File(p->fts_accpath, buf); 215 if (!digest) { 216 err(1, "line %d: %s", lineno, p->fts_accpath); 217 } else { 218 output(indent, &offset, "md5digest=%s", digest); 219 } 220 } 221 #endif /* MD5 */ 222 #ifdef SHA1 223 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 224 char *digest, buf[41]; 225 226 digest = SHA1_File(p->fts_accpath, buf); 227 if (!digest) { 228 err(1, "line %d: %s", lineno, p->fts_accpath); 229 } else { 230 output(indent, &offset, "sha1digest=%s", digest); 231 } 232 } 233 #endif /* SHA1 */ 234 #ifdef RMD160 235 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 236 char *digest, buf[41]; 237 238 digest = RIPEMD160_File(p->fts_accpath, buf); 239 if (!digest) { 240 err(1, "line %d: %s", lineno, p->fts_accpath); 241 } else { 242 output(indent, &offset, "ripemd160digest=%s", digest); 243 } 244 } 245 #endif /* RMD160 */ 246 if (keys & F_SLINK && 247 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 248 output(indent, &offset, "link=%s", rlink(p->fts_accpath)); 249 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 250 fflags = flags_to_string(p->fts_statp->st_flags); 251 output(indent, &offset, "flags=%s", fflags); 252 free(fflags); 253 } 254 putchar('\n'); 255 } 256 257 #define MAXGID 5000 258 #define MAXUID 5000 259 #define MAXMODE MBITS + 1 260 #define MAXFLAGS 256 261 #define MAXS 16 262 263 static int 264 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 265 u_long *pflags) 266 { 267 FTSENT *p; 268 gid_t sgid; 269 uid_t suid; 270 mode_t smode; 271 u_long sflags; 272 struct group *gr; 273 struct passwd *pw; 274 gid_t savegid = *pgid; 275 uid_t saveuid = *puid; 276 mode_t savemode = *pmode; 277 u_long saveflags = *pflags; 278 u_short maxgid, maxuid, maxmode, maxflags; 279 u_short g[MAXGID], u[MAXUID], m[MAXMODE], f[MAXFLAGS]; 280 char *fflags; 281 static int first = 1; 282 283 if ((p = fts_children(t, 0)) == NULL) { 284 if (errno) 285 err(1, "line %d: %s", lineno, RP(parent)); 286 return (1); 287 } 288 289 bzero(g, sizeof(g)); 290 bzero(u, sizeof(u)); 291 bzero(m, sizeof(m)); 292 bzero(f, sizeof(f)); 293 294 maxuid = maxgid = maxmode = maxflags = 0; 295 for (; p; p = p->fts_link) { 296 if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) { 297 smode = p->fts_statp->st_mode & MBITS; 298 if (smode < MAXMODE && ++m[smode] > maxmode) { 299 savemode = smode; 300 maxmode = m[smode]; 301 } 302 sgid = p->fts_statp->st_gid; 303 if (sgid < MAXGID && ++g[sgid] > maxgid) { 304 savegid = sgid; 305 maxgid = g[sgid]; 306 } 307 suid = p->fts_statp->st_uid; 308 if (suid < MAXUID && ++u[suid] > maxuid) { 309 saveuid = suid; 310 maxuid = u[suid]; 311 } 312 313 /* 314 * XXX 315 * note that the below will break when file flags 316 * are extended beyond the first 4 bytes of each 317 * half word of the flags 318 */ 319 #define FLAGS2IDX(f) ((f & 0xf) | ((f >> 12) & 0xf0)) 320 sflags = p->fts_statp->st_flags; 321 if (FLAGS2IDX(sflags) < MAXFLAGS && 322 ++f[FLAGS2IDX(sflags)] > maxflags) { 323 saveflags = sflags; 324 maxflags = f[FLAGS2IDX(sflags)]; 325 } 326 } 327 } 328 /* 329 * If the /set record is the same as the last one we do not need to output 330 * a new one. So first we check to see if anything changed. Note that we 331 * always output a /set record for the first directory. 332 */ 333 if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) || 334 (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) || 335 ((keys & F_MODE) && (*pmode != savemode)) || 336 ((keys & F_FLAGS) && (*pflags != saveflags)) || 337 (first)) { 338 first = 0; 339 if (dflag) 340 printf("/set type=dir"); 341 else 342 printf("/set type=file"); 343 if (keys & F_UNAME) { 344 if ((pw = getpwuid(saveuid)) != NULL) 345 printf(" uname=%s", pw->pw_name); 346 else 347 errx(1, 348 "line %d: could not get uname for uid=%u", 349 lineno, saveuid); 350 } 351 if (keys & F_UID) 352 printf(" uid=%lu", (u_long)saveuid); 353 if (keys & F_GNAME) { 354 if ((gr = getgrgid(savegid)) != NULL) 355 printf(" gname=%s", gr->gr_name); 356 else 357 errx(1, 358 "line %d: could not get gname for gid=%u", 359 lineno, savegid); 360 } 361 if (keys & F_GID) 362 printf(" gid=%lu", (u_long)savegid); 363 if (keys & F_MODE) 364 printf(" mode=%#o", savemode); 365 if (keys & F_NLINK) 366 printf(" nlink=1"); 367 if (keys & F_FLAGS) { 368 fflags = flags_to_string(saveflags); 369 printf(" flags=%s", fflags); 370 free(fflags); 371 } 372 printf("\n"); 373 *puid = saveuid; 374 *pgid = savegid; 375 *pmode = savemode; 376 *pflags = saveflags; 377 } 378 return (0); 379 } 380 381 static int 382 dsort(const FTSENT * const *a, const FTSENT * const *b) 383 { 384 385 if (S_ISDIR((*a)->fts_statp->st_mode)) { 386 if (!S_ISDIR((*b)->fts_statp->st_mode)) 387 return (1); 388 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 389 return (-1); 390 return (strcmp((*a)->fts_name, (*b)->fts_name)); 391 } 392 393 void 394 output(int indent, int *offset, const char *fmt, ...) 395 { 396 va_list ap; 397 char buf[1024]; 398 399 va_start(ap, fmt); 400 vsnprintf(buf, sizeof(buf), fmt, ap); 401 va_end(ap); 402 403 if (*offset + strlen(buf) > MAXLINELEN - 3) { 404 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 405 *offset = INDENTNAMELEN + indent; 406 } 407 *offset += printf(" %s", buf) + 1; 408 } 409