create.c revision 1.76
1 /* $NetBSD: create.c,v 1.76 2018/11/18 23:03:36 sevan 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 1.76 2018/11/18 23:03:36 sevan 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 dosum(FILE *fp, int indent, FTSENT *p, int *offset, int flag, 183 char * (*func)(const char *, char *), const char *key) 184 { 185 char *digestbuf; 186 187 if ((keys & flag) == 0) 188 return; 189 190 digestbuf = (*func)(p->fts_accpath, NULL); 191 if (digestbuf != NULL) { 192 output(fp, indent, offset, "%s=%s", key, digestbuf); 193 free(digestbuf); 194 return; 195 } 196 197 if (qflag) { 198 warn("%s: %s failed", p->fts_path, key); 199 return; 200 } 201 202 mtree_err("%s: %s failed: %s", p->fts_path, key, strerror(errno)); 203 } 204 205 static char * 206 crcFile(const char *fname, char *dummy __unused) 207 { 208 char *ptr; 209 uint32_t val, len; 210 int fd, e; 211 212 if ((fd = open(fname, O_RDONLY)) == -1) 213 goto out; 214 215 e = crc(fd, &val, &len); 216 close(fd); 217 if (e) 218 goto out; 219 220 if (asprintf(&ptr, "%u", val) < 0) 221 goto out; 222 223 return ptr; 224 out: 225 mtree_err("%s: %s", fname, strerror(errno)); 226 return NULL; 227 } 228 229 static void 230 statf(FILE *fp, int indent, FTSENT *p) 231 { 232 int offset; 233 const char *name = NULL; 234 235 offset = fprintf(fp, "%*s%s%s", indent, "", 236 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 237 238 if (offset > (INDENTNAMELEN + indent)) 239 offset = MAXLINELEN; 240 else 241 offset += fprintf(fp, "%*s", 242 (INDENTNAMELEN + indent) - offset, ""); 243 244 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 245 output(fp, indent, &offset, "type=%s", 246 inotype(p->fts_statp->st_mode)); 247 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 248 if (keys & F_UNAME && 249 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 250 output(fp, indent, &offset, "uname=%s", name); 251 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 252 output(fp, indent, &offset, "uid=%u", 253 p->fts_statp->st_uid); 254 } 255 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 256 if (keys & F_GNAME && 257 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 258 output(fp, indent, &offset, "gname=%s", name); 259 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 260 output(fp, indent, &offset, "gid=%u", 261 p->fts_statp->st_gid); 262 } 263 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 264 output(fp, indent, &offset, "mode=%#o", 265 p->fts_statp->st_mode & MBITS); 266 if (keys & F_DEV && 267 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 268 output(fp, indent, &offset, "device=%#jx", 269 (uintmax_t)p->fts_statp->st_rdev); 270 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 271 output(fp, indent, &offset, "nlink=%ju", 272 (uintmax_t)p->fts_statp->st_nlink); 273 if (keys & F_SIZE && 274 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 275 output(fp, indent, &offset, "size=%ju", 276 (uintmax_t)p->fts_statp->st_size); 277 if (keys & F_TIME) 278 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 279 output(fp, indent, &offset, "time=%jd.%09ld", 280 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 281 p->fts_statp->st_mtimespec.tv_nsec); 282 #else 283 output(fp, indent, &offset, "time=%jd.%09ld", 284 (intmax_t)p->fts_statp->st_mtime, (long)0); 285 #endif 286 if (S_ISREG(p->fts_statp->st_mode)) { 287 dosum(fp, indent, p, &offset, F_CKSUM, crcFile, "cksum"); 288 #ifndef NO_MD5 289 dosum(fp, indent, p, &offset, F_MD5, MD5File, MD5KEY); 290 #endif /* ! NO_MD5 */ 291 #ifndef NO_RMD160 292 dosum(fp, indent, p, &offset, F_RMD160, RMD160File, RMD160KEY); 293 #endif /* ! NO_RMD160 */ 294 #ifndef NO_SHA1 295 dosum(fp, indent, p, &offset, F_SHA1, SHA1File, SHA1KEY); 296 #endif /* ! NO_SHA1 */ 297 #ifndef NO_SHA2 298 dosum(fp, indent, p, &offset, F_SHA256, SHA256_File, SHA256KEY); 299 #ifdef SHA384_BLOCK_LENGTH 300 dosum(fp, indent, p, &offset, F_SHA384, SHA384_File, SHA384KEY); 301 #endif 302 dosum(fp, indent, p, &offset, F_SHA512, SHA512_File, SHA512KEY); 303 #endif /* ! NO_SHA2 */ 304 } 305 if (keys & F_SLINK && 306 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 307 output(fp, indent, &offset, "link=%s", 308 vispath(rlink(p->fts_accpath))); 309 #if HAVE_STRUCT_STAT_ST_FLAGS 310 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 311 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 312 output(fp, indent, &offset, "flags=%s", str); 313 free(str); 314 } 315 #endif 316 putchar('\n'); 317 } 318 319 /* XXX 320 * FLAGS2INDEX will fail once the user and system settable bits need more 321 * than one byte, respectively. 322 */ 323 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 324 325 #define MTREE_MAXGID 5000 326 #define MTREE_MAXUID 5000 327 #define MTREE_MAXMODE (MBITS + 1) 328 #if HAVE_STRUCT_STAT_ST_FLAGS 329 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 330 #else 331 #define MTREE_MAXFLAGS 1 332 #endif 333 #define MTREE_MAXS 16 334 335 static int 336 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 337 u_long *pflags) 338 { 339 FTSENT *p; 340 gid_t sgid; 341 uid_t suid; 342 mode_t smode; 343 u_long sflags = 0; 344 const char *name = NULL; 345 gid_t savegid; 346 uid_t saveuid; 347 mode_t savemode; 348 u_long saveflags; 349 u_short maxgid, maxuid, maxmode, maxflags; 350 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 351 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 352 static int first = 1; 353 354 savegid = *pgid; 355 saveuid = *puid; 356 savemode = *pmode; 357 saveflags = *pflags; 358 if ((p = fts_children(t, 0)) == NULL) { 359 if (errno) 360 mtree_err("%s: %s", RP(parent), strerror(errno)); 361 return (1); 362 } 363 364 memset(g, 0, sizeof(g)); 365 memset(u, 0, sizeof(u)); 366 memset(m, 0, sizeof(m)); 367 memset(f, 0, sizeof(f)); 368 369 maxuid = maxgid = maxmode = maxflags = 0; 370 for (; p; p = p->fts_link) { 371 if (flavor == F_NETBSD6 || !dflag || 372 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 373 smode = p->fts_statp->st_mode & MBITS; 374 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 375 savemode = smode; 376 maxmode = m[smode]; 377 } 378 sgid = p->fts_statp->st_gid; 379 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 380 savegid = sgid; 381 maxgid = g[sgid]; 382 } 383 suid = p->fts_statp->st_uid; 384 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 385 saveuid = suid; 386 maxuid = u[suid]; 387 } 388 389 #if HAVE_STRUCT_STAT_ST_FLAGS 390 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 391 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 392 saveflags = p->fts_statp->st_flags; 393 maxflags = f[sflags]; 394 } 395 #endif 396 } 397 } 398 /* 399 * If the /set record is the same as the last one we do not need to 400 * output a new one. So first we check to see if anything changed. 401 * Note that we always output a /set record for the first directory. 402 */ 403 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 404 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 405 ((keys & F_MODE) && (*pmode != savemode)) || 406 ((keys & F_FLAGS) && (*pflags != saveflags)) || 407 first) { 408 first = 0; 409 if (flavor != F_NETBSD6 && dflag) 410 fprintf(fp, "/set type=dir"); 411 else 412 fprintf(fp, "/set type=file"); 413 if (keys & (F_UID | F_UNAME)) { 414 if (keys & F_UNAME && 415 (name = user_from_uid(saveuid, 1)) != NULL) 416 fprintf(fp, " uname=%s", name); 417 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 418 fprintf(fp, " uid=%lu", (u_long)saveuid); 419 } 420 if (keys & (F_GID | F_GNAME)) { 421 if (keys & F_GNAME && 422 (name = group_from_gid(savegid, 1)) != NULL) 423 fprintf(fp, " gname=%s", name); 424 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 425 fprintf(fp, " gid=%lu", (u_long)savegid); 426 } 427 if (keys & F_MODE) 428 fprintf(fp, " mode=%#lo", (u_long)savemode); 429 if (keys & F_NLINK) 430 fprintf(fp, " nlink=1"); 431 if (keys & F_FLAGS) { 432 char *str = flags_to_string(saveflags, "none"); 433 fprintf(fp, " flags=%s", str); 434 free(str); 435 } 436 fprintf(fp, "\n"); 437 *puid = saveuid; 438 *pgid = savegid; 439 *pmode = savemode; 440 *pflags = saveflags; 441 } 442 return (0); 443 } 444 445 /* 446 * dcmp -- 447 * used as a comparison function passed to fts_open() to control 448 * the order in which fts_read() returns results. We make 449 * directories sort after non-directories, but otherwise sort in 450 * strcmp() order. 451 * 452 * Keep this in sync with nodecmp() in spec.c. 453 */ 454 static int 455 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 456 { 457 458 if (S_ISDIR((*a)->fts_statp->st_mode)) { 459 if (!S_ISDIR((*b)->fts_statp->st_mode)) 460 return (1); 461 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 462 return (-1); 463 return (strcmp((*a)->fts_name, (*b)->fts_name)); 464 } 465 466 void 467 output(FILE *fp, int indent, int *offset, const char *fmt, ...) 468 { 469 va_list ap; 470 char buf[1024]; 471 472 va_start(ap, fmt); 473 vsnprintf(buf, sizeof(buf), fmt, ap); 474 va_end(ap); 475 476 if (*offset + strlen(buf) > MAXLINELEN - 3) { 477 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, ""); 478 *offset = INDENTNAMELEN + indent; 479 } 480 *offset += fprintf(fp, " %s", buf) + 1; 481 } 482
Indexes created Thu Sep 25 02:09:54 GMT 2025