1 /* $NetBSD: create.c,v 1.73 2014/04/24 17:22:41 christos 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/cdefs.h> 37 #if defined(__RCSID) && !defined(lint) 38 #if 0 39 static char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: create.c,v 1.73 2014/04/24 17:22:41 christos Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #if ! HAVE_NBTOOL_CONFIG_H 49 #include <dirent.h> 50 #endif 51 52 #include <errno.h> 53 #include <fcntl.h> 54 #include <grp.h> 55 #include <pwd.h> 56 #include <stdio.h> 57 #include <stdarg.h> 58 #include <stdint.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <time.h> 62 #include <unistd.h> 63 64 #ifndef NO_MD5 65 #include <md5.h> 66 #endif 67 #ifndef NO_RMD160 68 #include <rmd160.h> 69 #endif 70 #ifndef NO_SHA1 71 #include <sha1.h> 72 #endif 73 #ifndef NO_SHA2 74 #include <sha2.h> 75 #endif 76 77 #include "extern.h" 78 79 #define INDENTNAMELEN 15 80 #define MAXLINELEN 80 81 82 static gid_t gid; 83 static uid_t uid; 84 static mode_t mode; 85 static u_long flags; 86 87 #ifdef __FreeBSD__ 88 #define FTS_CONST const 89 #else 90 #define FTS_CONST 91 #endif 92 93 static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *); 94 static void output(FILE *, int, int *, const char *, ...) 95 __printflike(4, 5); 96 static int statd(FILE *, FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, 97 u_long *); 98 static void statf(FILE *, int, FTSENT *); 99 100 void 101 cwalk(FILE *fp) 102 { 103 FTS *t; 104 FTSENT *p; 105 time_t clocktime; 106 char host[MAXHOSTNAMELEN + 1]; 107 const char *user; 108 char *argv[2]; 109 char dot[] = "."; 110 int indent = 0; 111 112 argv[0] = dot; 113 argv[1] = NULL; 114 115 time(&clocktime); 116 gethostname(host, sizeof(host)); 117 host[sizeof(host) - 1] = '\0'; 118 if ((user = getlogin()) == NULL) { 119 struct passwd *pw; 120 user = (pw = getpwuid(getuid())) != NULL ? pw->pw_name : 121 "<unknown>"; 122 } 123 124 if (!nflag) 125 fprintf(fp, 126 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n" 127 "#\t date: %s", 128 user, host, fullpath, ctime(&clocktime)); 129 130 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL) 131 mtree_err("fts_open: %s", strerror(errno)); 132 while (errno = 0, (p = fts_read(t)) != NULL) { 133 if (jflag) 134 indent = p->fts_level * 4; 135 if (check_excludes(p->fts_name, p->fts_path)) { 136 fts_set(t, p, FTS_SKIP); 137 continue; 138 } 139 if (!find_only(p->fts_path)) { 140 fts_set(t, p, FTS_SKIP); 141 continue; 142 } 143 switch(p->fts_info) { 144 case FTS_D: 145 if (!bflag) 146 fprintf(fp, "\n"); 147 if (!nflag) 148 fprintf(fp, "# %s\n", p->fts_path); 149 statd(fp, t, p, &uid, &gid, &mode, &flags); 150 statf(fp, indent, p); 151 break; 152 case FTS_DP: 153 if (p->fts_level > 0) 154 if (!nflag) 155 fprintf(fp, "%*s# %s\n", indent, "", 156 p->fts_path); 157 if (p->fts_level > 0 || flavor == F_FREEBSD9) { 158 fprintf(fp, "%*s..\n", indent, ""); 159 if (!bflag) 160 fprintf(fp, "\n"); 161 } 162 break; 163 case FTS_DNR: 164 case FTS_ERR: 165 case FTS_NS: 166 mtree_err("%s: %s", 167 p->fts_path, strerror(p->fts_errno)); 168 break; 169 default: 170 if (!dflag) 171 statf(fp, indent, p); 172 break; 173 174 } 175 } 176 if (errno != 0) 177 mtree_err("fts_read: %s", strerror(errno)); 178 fts_close(t); 179 if (sflag && keys & F_CKSUM) 180 mtree_err("%s checksum: %u", fullpath, crc_total); 181 } 182 183 static void 184 statf(FILE *fp, int indent, FTSENT *p) 185 { 186 u_int32_t len, val; 187 int fd, offset; 188 const char *name = NULL; 189 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 190 char *digestbuf; 191 #endif 192 193 offset = fprintf(fp, "%*s%s%s", indent, "", 194 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 195 196 if (offset > (INDENTNAMELEN + indent)) 197 offset = MAXLINELEN; 198 else 199 offset += fprintf(fp, "%*s", 200 (INDENTNAMELEN + indent) - offset, ""); 201 202 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 203 output(fp, indent, &offset, "type=%s", 204 inotype(p->fts_statp->st_mode)); 205 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 206 if (keys & F_UNAME && 207 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 208 output(fp, indent, &offset, "uname=%s", name); 209 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 210 output(fp, indent, &offset, "uid=%u", 211 p->fts_statp->st_uid); 212 } 213 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 214 if (keys & F_GNAME && 215 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 216 output(fp, indent, &offset, "gname=%s", name); 217 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 218 output(fp, indent, &offset, "gid=%u", 219 p->fts_statp->st_gid); 220 } 221 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 222 output(fp, indent, &offset, "mode=%#o", 223 p->fts_statp->st_mode & MBITS); 224 if (keys & F_DEV && 225 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 226 output(fp, indent, &offset, "device=%#jx", 227 (uintmax_t)p->fts_statp->st_rdev); 228 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 229 output(fp, indent, &offset, "nlink=%ju", 230 (uintmax_t)p->fts_statp->st_nlink); 231 if (keys & F_SIZE && 232 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 233 output(fp, indent, &offset, "size=%ju", 234 (uintmax_t)p->fts_statp->st_size); 235 if (keys & F_TIME) 236 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 237 output(fp, indent, &offset, "time=%jd.%09ld", 238 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 239 p->fts_statp->st_mtimespec.tv_nsec); 240 #else 241 output(fp, indent, &offset, "time=%jd.%09ld", 242 (intmax_t)p->fts_statp->st_mtime, (long)0); 243 #endif 244 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 245 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 246 crc(fd, &val, &len)) 247 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 248 close(fd); 249 output(fp, indent, &offset, "cksum=%lu", (long)val); 250 } 251 #ifndef NO_MD5 252 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 253 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 254 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 255 strerror(errno)); 256 output(fp, indent, &offset, "%s=%s", MD5KEY, digestbuf); 257 free(digestbuf); 258 } 259 #endif /* ! NO_MD5 */ 260 #ifndef NO_RMD160 261 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 262 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 263 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 264 strerror(errno)); 265 output(fp, indent, &offset, "%s=%s", RMD160KEY, digestbuf); 266 free(digestbuf); 267 } 268 #endif /* ! NO_RMD160 */ 269 #ifndef NO_SHA1 270 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 271 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 272 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 273 strerror(errno)); 274 output(fp, indent, &offset, "%s=%s", SHA1KEY, digestbuf); 275 free(digestbuf); 276 } 277 #endif /* ! NO_SHA1 */ 278 #ifndef NO_SHA2 279 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 280 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 281 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 282 strerror(errno)); 283 output(fp, indent, &offset, "%s=%s", SHA256KEY, digestbuf); 284 free(digestbuf); 285 } 286 #ifdef SHA384_BLOCK_LENGTH 287 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 288 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 289 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 290 strerror(errno)); 291 output(fp, indent, &offset, "%s=%s", SHA384KEY, digestbuf); 292 free(digestbuf); 293 } 294 #endif 295 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 296 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 297 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 298 strerror(errno)); 299 output(fp, indent, &offset, "%s=%s", SHA512KEY, digestbuf); 300 free(digestbuf); 301 } 302 #endif /* ! NO_SHA2 */ 303 if (keys & F_SLINK && 304 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 305 output(fp, indent, &offset, "link=%s", 306 vispath(rlink(p->fts_accpath))); 307 #if HAVE_STRUCT_STAT_ST_FLAGS 308 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 309 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 310 output(fp, indent, &offset, "flags=%s", str); 311 free(str); 312 } 313 #endif 314 putchar('\n'); 315 } 316 317 /* XXX 318 * FLAGS2INDEX will fail once the user and system settable bits need more 319 * than one byte, respectively. 320 */ 321 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 322 323 #define MTREE_MAXGID 5000 324 #define MTREE_MAXUID 5000 325 #define MTREE_MAXMODE (MBITS + 1) 326 #if HAVE_STRUCT_STAT_ST_FLAGS 327 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 328 #else 329 #define MTREE_MAXFLAGS 1 330 #endif 331 #define MTREE_MAXS 16 332 333 static int 334 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 335 u_long *pflags) 336 { 337 FTSENT *p; 338 gid_t sgid; 339 uid_t suid; 340 mode_t smode; 341 u_long sflags = 0; 342 const char *name = NULL; 343 gid_t savegid; 344 uid_t saveuid; 345 mode_t savemode; 346 u_long saveflags; 347 u_short maxgid, maxuid, maxmode, maxflags; 348 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 349 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 350 static int first = 1; 351 352 savegid = *pgid; 353 saveuid = *puid; 354 savemode = *pmode; 355 saveflags = *pflags; 356 if ((p = fts_children(t, 0)) == NULL) { 357 if (errno) 358 mtree_err("%s: %s", RP(parent), strerror(errno)); 359 return (1); 360 } 361 362 memset(g, 0, sizeof(g)); 363 memset(u, 0, sizeof(u)); 364 memset(m, 0, sizeof(m)); 365 memset(f, 0, sizeof(f)); 366 367 maxuid = maxgid = maxmode = maxflags = 0; 368 for (; p; p = p->fts_link) { 369 if (flavor == F_NETBSD6 || !dflag || 370 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 371 smode = p->fts_statp->st_mode & MBITS; 372 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 373 savemode = smode; 374 maxmode = m[smode]; 375 } 376 sgid = p->fts_statp->st_gid; 377 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 378 savegid = sgid; 379 maxgid = g[sgid]; 380 } 381 suid = p->fts_statp->st_uid; 382 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 383 saveuid = suid; 384 maxuid = u[suid]; 385 } 386 387 #if HAVE_STRUCT_STAT_ST_FLAGS 388 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 389 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 390 saveflags = p->fts_statp->st_flags; 391 maxflags = f[sflags]; 392 } 393 #endif 394 } 395 } 396 /* 397 * If the /set record is the same as the last one we do not need to 398 * output a new one. So first we check to see if anything changed. 399 * Note that we always output a /set record for the first directory. 400 */ 401 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 402 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 403 ((keys & F_MODE) && (*pmode != savemode)) || 404 ((keys & F_FLAGS) && (*pflags != saveflags)) || 405 first) { 406 first = 0; 407 if (flavor != F_NETBSD6 && dflag) 408 fprintf(fp, "/set type=dir"); 409 else 410 fprintf(fp, "/set type=file"); 411 if (keys & (F_UID | F_UNAME)) { 412 if (keys & F_UNAME && 413 (name = user_from_uid(saveuid, 1)) != NULL) 414 fprintf(fp, " uname=%s", name); 415 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 416 fprintf(fp, " uid=%lu", (u_long)saveuid); 417 } 418 if (keys & (F_GID | F_GNAME)) { 419 if (keys & F_GNAME && 420 (name = group_from_gid(savegid, 1)) != NULL) 421 fprintf(fp, " gname=%s", name); 422 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 423 fprintf(fp, " gid=%lu", (u_long)savegid); 424 } 425 if (keys & F_MODE) 426 fprintf(fp, " mode=%#lo", (u_long)savemode); 427 if (keys & F_NLINK) 428 fprintf(fp, " nlink=1"); 429 if (keys & F_FLAGS) { 430 char *str = flags_to_string(saveflags, "none"); 431 fprintf(fp, " flags=%s", str); 432 free(str); 433 } 434 fprintf(fp, "\n"); 435 *puid = saveuid; 436 *pgid = savegid; 437 *pmode = savemode; 438 *pflags = saveflags; 439 } 440 return (0); 441 } 442 443 /* 444 * dcmp -- 445 * used as a comparison function passed to fts_open() to control 446 * the order in which fts_read() returns results. We make 447 * directories sort after non-directories, but otherwise sort in 448 * strcmp() order. 449 * 450 * Keep this in sync with nodecmp() in spec.c. 451 */ 452 static int 453 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 454 { 455 456 if (S_ISDIR((*a)->fts_statp->st_mode)) { 457 if (!S_ISDIR((*b)->fts_statp->st_mode)) 458 return (1); 459 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 460 return (-1); 461 return (strcmp((*a)->fts_name, (*b)->fts_name)); 462 } 463 464 void 465 output(FILE *fp, int indent, int *offset, const char *fmt, ...) 466 { 467 va_list ap; 468 char buf[1024]; 469 470 va_start(ap, fmt); 471 vsnprintf(buf, sizeof(buf), fmt, ap); 472 va_end(ap); 473 474 if (*offset + strlen(buf) > MAXLINELEN - 3) { 475 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, ""); 476 *offset = INDENTNAMELEN + indent; 477 } 478 *offset += fprintf(fp, " %s", buf) + 1; 479 } 480