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 ((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 fts_close(t); 177 if (sflag && keys & F_CKSUM) 178 mtree_err("%s checksum: %u", fullpath, crc_total); 179 } 180 181 static void 182 statf(FILE *fp, int indent, FTSENT *p) 183 { 184 u_int32_t len, val; 185 int fd, offset; 186 const char *name = NULL; 187 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 188 char *digestbuf; 189 #endif 190 191 offset = fprintf(fp, "%*s%s%s", indent, "", 192 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 193 194 if (offset > (INDENTNAMELEN + indent)) 195 offset = MAXLINELEN; 196 else 197 offset += fprintf(fp, "%*s", 198 (INDENTNAMELEN + indent) - offset, ""); 199 200 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 201 output(fp, indent, &offset, "type=%s", 202 inotype(p->fts_statp->st_mode)); 203 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 204 if (keys & F_UNAME && 205 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 206 output(fp, indent, &offset, "uname=%s", name); 207 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 208 output(fp, indent, &offset, "uid=%u", 209 p->fts_statp->st_uid); 210 } 211 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 212 if (keys & F_GNAME && 213 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 214 output(fp, indent, &offset, "gname=%s", name); 215 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 216 output(fp, indent, &offset, "gid=%u", 217 p->fts_statp->st_gid); 218 } 219 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 220 output(fp, indent, &offset, "mode=%#o", 221 p->fts_statp->st_mode & MBITS); 222 if (keys & F_DEV && 223 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 224 output(fp, indent, &offset, "device=%#jx", 225 (uintmax_t)p->fts_statp->st_rdev); 226 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 227 output(fp, indent, &offset, "nlink=%ju", 228 (uintmax_t)p->fts_statp->st_nlink); 229 if (keys & F_SIZE && 230 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 231 output(fp, indent, &offset, "size=%ju", 232 (uintmax_t)p->fts_statp->st_size); 233 if (keys & F_TIME) 234 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 235 output(fp, indent, &offset, "time=%jd.%09ld", 236 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 237 p->fts_statp->st_mtimespec.tv_nsec); 238 #else 239 output(fp, indent, &offset, "time=%jd.%09ld", 240 (intmax_t)p->fts_statp->st_mtime, (long)0); 241 #endif 242 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 243 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 244 crc(fd, &val, &len)) 245 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 246 close(fd); 247 output(fp, indent, &offset, "cksum=%lu", (long)val); 248 } 249 #ifndef NO_MD5 250 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 251 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 252 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 253 strerror(errno)); 254 output(fp, indent, &offset, "%s=%s", MD5KEY, digestbuf); 255 free(digestbuf); 256 } 257 #endif /* ! NO_MD5 */ 258 #ifndef NO_RMD160 259 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 260 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 261 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 262 strerror(errno)); 263 output(fp, indent, &offset, "%s=%s", RMD160KEY, digestbuf); 264 free(digestbuf); 265 } 266 #endif /* ! NO_RMD160 */ 267 #ifndef NO_SHA1 268 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 269 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 270 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 271 strerror(errno)); 272 output(fp, indent, &offset, "%s=%s", SHA1KEY, digestbuf); 273 free(digestbuf); 274 } 275 #endif /* ! NO_SHA1 */ 276 #ifndef NO_SHA2 277 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 278 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 279 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 280 strerror(errno)); 281 output(fp, indent, &offset, "%s=%s", SHA256KEY, digestbuf); 282 free(digestbuf); 283 } 284 #ifdef SHA384_BLOCK_LENGTH 285 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 286 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 287 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 288 strerror(errno)); 289 output(fp, indent, &offset, "%s=%s", SHA384KEY, digestbuf); 290 free(digestbuf); 291 } 292 #endif 293 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 294 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 295 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 296 strerror(errno)); 297 output(fp, indent, &offset, "%s=%s", SHA512KEY, digestbuf); 298 free(digestbuf); 299 } 300 #endif /* ! NO_SHA2 */ 301 if (keys & F_SLINK && 302 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 303 output(fp, indent, &offset, "link=%s", 304 vispath(rlink(p->fts_accpath))); 305 #if HAVE_STRUCT_STAT_ST_FLAGS 306 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 307 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 308 output(fp, indent, &offset, "flags=%s", str); 309 free(str); 310 } 311 #endif 312 putchar('\n'); 313 } 314 315 /* XXX 316 * FLAGS2INDEX will fail once the user and system settable bits need more 317 * than one byte, respectively. 318 */ 319 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 320 321 #define MTREE_MAXGID 5000 322 #define MTREE_MAXUID 5000 323 #define MTREE_MAXMODE (MBITS + 1) 324 #if HAVE_STRUCT_STAT_ST_FLAGS 325 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 326 #else 327 #define MTREE_MAXFLAGS 1 328 #endif 329 #define MTREE_MAXS 16 330 331 static int 332 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 333 u_long *pflags) 334 { 335 FTSENT *p; 336 gid_t sgid; 337 uid_t suid; 338 mode_t smode; 339 u_long sflags = 0; 340 const char *name = NULL; 341 gid_t savegid; 342 uid_t saveuid; 343 mode_t savemode; 344 u_long saveflags; 345 u_short maxgid, maxuid, maxmode, maxflags; 346 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 347 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 348 static int first = 1; 349 350 savegid = *pgid; 351 saveuid = *puid; 352 savemode = *pmode; 353 saveflags = *pflags; 354 if ((p = fts_children(t, 0)) == NULL) { 355 if (errno) 356 mtree_err("%s: %s", RP(parent), strerror(errno)); 357 return (1); 358 } 359 360 memset(g, 0, sizeof(g)); 361 memset(u, 0, sizeof(u)); 362 memset(m, 0, sizeof(m)); 363 memset(f, 0, sizeof(f)); 364 365 maxuid = maxgid = maxmode = maxflags = 0; 366 for (; p; p = p->fts_link) { 367 if (flavor == F_NETBSD6 || !dflag || 368 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 369 smode = p->fts_statp->st_mode & MBITS; 370 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 371 savemode = smode; 372 maxmode = m[smode]; 373 } 374 sgid = p->fts_statp->st_gid; 375 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 376 savegid = sgid; 377 maxgid = g[sgid]; 378 } 379 suid = p->fts_statp->st_uid; 380 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 381 saveuid = suid; 382 maxuid = u[suid]; 383 } 384 385 #if HAVE_STRUCT_STAT_ST_FLAGS 386 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 387 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 388 saveflags = p->fts_statp->st_flags; 389 maxflags = f[sflags]; 390 } 391 #endif 392 } 393 } 394 /* 395 * If the /set record is the same as the last one we do not need to 396 * output a new one. So first we check to see if anything changed. 397 * Note that we always output a /set record for the first directory. 398 */ 399 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 400 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 401 ((keys & F_MODE) && (*pmode != savemode)) || 402 ((keys & F_FLAGS) && (*pflags != saveflags)) || 403 first) { 404 first = 0; 405 if (flavor != F_NETBSD6 && dflag) 406 fprintf(fp, "/set type=dir"); 407 else 408 fprintf(fp, "/set type=file"); 409 if (keys & (F_UID | F_UNAME)) { 410 if (keys & F_UNAME && 411 (name = user_from_uid(saveuid, 1)) != NULL) 412 fprintf(fp, " uname=%s", name); 413 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 414 fprintf(fp, " uid=%lu", (u_long)saveuid); 415 } 416 if (keys & (F_GID | F_GNAME)) { 417 if (keys & F_GNAME && 418 (name = group_from_gid(savegid, 1)) != NULL) 419 fprintf(fp, " gname=%s", name); 420 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 421 fprintf(fp, " gid=%lu", (u_long)savegid); 422 } 423 if (keys & F_MODE) 424 fprintf(fp, " mode=%#lo", (u_long)savemode); 425 if (keys & F_NLINK) 426 fprintf(fp, " nlink=1"); 427 if (keys & F_FLAGS) { 428 char *str = flags_to_string(saveflags, "none"); 429 fprintf(fp, " flags=%s", str); 430 free(str); 431 } 432 fprintf(fp, "\n"); 433 *puid = saveuid; 434 *pgid = savegid; 435 *pmode = savemode; 436 *pflags = saveflags; 437 } 438 return (0); 439 } 440 441 /* 442 * dcmp -- 443 * used as a comparison function passed to fts_open() to control 444 * the order in which fts_read() returns results. We make 445 * directories sort after non-directories, but otherwise sort in 446 * strcmp() order. 447 * 448 * Keep this in sync with nodecmp() in spec.c. 449 */ 450 static int 451 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 452 { 453 454 if (S_ISDIR((*a)->fts_statp->st_mode)) { 455 if (!S_ISDIR((*b)->fts_statp->st_mode)) 456 return (1); 457 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 458 return (-1); 459 return (strcmp((*a)->fts_name, (*b)->fts_name)); 460 } 461 462 void 463 output(FILE *fp, int indent, int *offset, const char *fmt, ...) 464 { 465 va_list ap; 466 char buf[1024]; 467 468 va_start(ap, fmt); 469 vsnprintf(buf, sizeof(buf), fmt, ap); 470 va_end(ap); 471 472 if (*offset + strlen(buf) > MAXLINELEN - 3) { 473 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, ""); 474 *offset = INDENTNAMELEN + indent; 475 } 476 *offset += fprintf(fp, " %s", buf) + 1; 477 } 478