create.c revision 1.77
1 /* $NetBSD: create.c,v 1.77 2023/12/02 13:34:48 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 1.77 2023/12/02 13:34:48 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 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 dosum(FILE *fp, int indent, FTSENT *p, int *offset, int flag, 185 char * (*func)(const char *, char *), const char *key) 186 { 187 char *digestbuf; 188 189 if ((keys & flag) == 0) 190 return; 191 192 digestbuf = (*func)(p->fts_accpath, NULL); 193 if (digestbuf != NULL) { 194 output(fp, indent, offset, "%s=%s", key, digestbuf); 195 free(digestbuf); 196 return; 197 } 198 199 if (qflag) { 200 warn("%s: %s failed", p->fts_path, key); 201 return; 202 } 203 204 mtree_err("%s: %s failed: %s", p->fts_path, key, strerror(errno)); 205 } 206 207 static char * 208 crcFile(const char *fname, char *dummy __unused) 209 { 210 char *ptr; 211 uint32_t val, len; 212 int fd, e; 213 214 if ((fd = open(fname, O_RDONLY)) == -1) 215 goto out; 216 217 e = crc(fd, &val, &len); 218 close(fd); 219 if (e) 220 goto out; 221 222 if (asprintf(&ptr, "%u", val) < 0) 223 goto out; 224 225 return ptr; 226 out: 227 mtree_err("%s: %s", fname, strerror(errno)); 228 return NULL; 229 } 230 231 static void 232 statf(FILE *fp, int indent, FTSENT *p) 233 { 234 int offset; 235 const char *name = NULL; 236 237 offset = fprintf(fp, "%*s%s%s", indent, "", 238 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 239 240 if (offset > (INDENTNAMELEN + indent)) 241 offset = MAXLINELEN; 242 else 243 offset += fprintf(fp, "%*s", 244 (INDENTNAMELEN + indent) - offset, ""); 245 246 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 247 output(fp, indent, &offset, "type=%s", 248 inotype(p->fts_statp->st_mode)); 249 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 250 if (keys & F_UNAME && 251 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 252 output(fp, indent, &offset, "uname=%s", name); 253 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 254 output(fp, indent, &offset, "uid=%u", 255 p->fts_statp->st_uid); 256 } 257 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 258 if (keys & F_GNAME && 259 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 260 output(fp, indent, &offset, "gname=%s", name); 261 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 262 output(fp, indent, &offset, "gid=%u", 263 p->fts_statp->st_gid); 264 } 265 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 266 output(fp, indent, &offset, "mode=%#o", 267 p->fts_statp->st_mode & MBITS); 268 if (keys & F_DEV && 269 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 270 output(fp, indent, &offset, "device=%#jx", 271 (uintmax_t)p->fts_statp->st_rdev); 272 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 273 output(fp, indent, &offset, "nlink=%ju", 274 (uintmax_t)p->fts_statp->st_nlink); 275 if (keys & F_SIZE && 276 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 277 output(fp, indent, &offset, "size=%ju", 278 (uintmax_t)p->fts_statp->st_size); 279 if (keys & F_TIME) 280 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 281 output(fp, indent, &offset, "time=%jd.%09ld", 282 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 283 p->fts_statp->st_mtimespec.tv_nsec); 284 #else 285 output(fp, indent, &offset, "time=%jd.%09ld", 286 (intmax_t)p->fts_statp->st_mtime, (long)0); 287 #endif 288 if (S_ISREG(p->fts_statp->st_mode)) { 289 dosum(fp, indent, p, &offset, F_CKSUM, crcFile, "cksum"); 290 #ifndef NO_MD5 291 dosum(fp, indent, p, &offset, F_MD5, MD5File, MD5KEY); 292 #endif /* ! NO_MD5 */ 293 #ifndef NO_RMD160 294 dosum(fp, indent, p, &offset, F_RMD160, RMD160File, RMD160KEY); 295 #endif /* ! NO_RMD160 */ 296 #ifndef NO_SHA1 297 dosum(fp, indent, p, &offset, F_SHA1, SHA1File, SHA1KEY); 298 #endif /* ! NO_SHA1 */ 299 #ifndef NO_SHA2 300 dosum(fp, indent, p, &offset, F_SHA256, SHA256_File, SHA256KEY); 301 #ifdef SHA384_BLOCK_LENGTH 302 dosum(fp, indent, p, &offset, F_SHA384, SHA384_File, SHA384KEY); 303 #endif 304 dosum(fp, indent, p, &offset, F_SHA512, SHA512_File, SHA512KEY); 305 #endif /* ! NO_SHA2 */ 306 } 307 if (keys & F_SLINK && 308 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 309 output(fp, indent, &offset, "link=%s", 310 vispath(rlink(p->fts_accpath))); 311 #if HAVE_STRUCT_STAT_ST_FLAGS 312 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 313 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 314 output(fp, indent, &offset, "flags=%s", str); 315 free(str); 316 } 317 #endif 318 putchar('\n'); 319 } 320 321 /* XXX 322 * FLAGS2INDEX will fail once the user and system settable bits need more 323 * than one byte, respectively. 324 */ 325 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 326 327 #define MTREE_MAXGID 5000 328 #define MTREE_MAXUID 5000 329 #define MTREE_MAXMODE (MBITS + 1) 330 #if HAVE_STRUCT_STAT_ST_FLAGS 331 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 332 #else 333 #define MTREE_MAXFLAGS 1 334 #endif 335 #define MTREE_MAXS 16 336 337 static int 338 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 339 u_long *pflags) 340 { 341 FTSENT *p; 342 gid_t sgid; 343 uid_t suid; 344 mode_t smode; 345 u_long sflags = 0; 346 const char *name = NULL; 347 gid_t savegid; 348 uid_t saveuid; 349 mode_t savemode; 350 u_long saveflags; 351 u_short maxgid, maxuid, maxmode, maxflags; 352 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 353 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 354 static int first = 1; 355 356 savegid = *pgid; 357 saveuid = *puid; 358 savemode = *pmode; 359 saveflags = *pflags; 360 if ((p = fts_children(t, 0)) == NULL) { 361 if (errno) 362 mtree_err("%s: %s", RP(parent), strerror(errno)); 363 return (1); 364 } 365 366 memset(g, 0, sizeof(g)); 367 memset(u, 0, sizeof(u)); 368 memset(m, 0, sizeof(m)); 369 memset(f, 0, sizeof(f)); 370 371 maxuid = maxgid = maxmode = maxflags = 0; 372 for (; p; p = p->fts_link) { 373 if (flavor == F_NETBSD6 || !dflag || 374 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 375 smode = p->fts_statp->st_mode & MBITS; 376 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 377 savemode = smode; 378 maxmode = m[smode]; 379 } 380 sgid = p->fts_statp->st_gid; 381 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 382 savegid = sgid; 383 maxgid = g[sgid]; 384 } 385 suid = p->fts_statp->st_uid; 386 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 387 saveuid = suid; 388 maxuid = u[suid]; 389 } 390 391 #if HAVE_STRUCT_STAT_ST_FLAGS 392 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 393 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 394 saveflags = p->fts_statp->st_flags; 395 maxflags = f[sflags]; 396 } 397 #endif 398 } 399 } 400 /* 401 * If the /set record is the same as the last one we do not need to 402 * output a new one. So first we check to see if anything changed. 403 * Note that we always output a /set record for the first directory. 404 */ 405 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 406 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 407 ((keys & F_MODE) && (*pmode != savemode)) || 408 ((keys & F_FLAGS) && (*pflags != saveflags)) || 409 first) { 410 first = 0; 411 if (flavor != F_NETBSD6 && dflag) 412 fprintf(fp, "/set type=dir"); 413 else 414 fprintf(fp, "/set type=file"); 415 if (keys & (F_UID | F_UNAME)) { 416 if (keys & F_UNAME && 417 (name = user_from_uid(saveuid, 1)) != NULL) 418 fprintf(fp, " uname=%s", name); 419 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 420 fprintf(fp, " uid=%lu", (u_long)saveuid); 421 } 422 if (keys & (F_GID | F_GNAME)) { 423 if (keys & F_GNAME && 424 (name = group_from_gid(savegid, 1)) != NULL) 425 fprintf(fp, " gname=%s", name); 426 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 427 fprintf(fp, " gid=%lu", (u_long)savegid); 428 } 429 if (keys & F_MODE) 430 fprintf(fp, " mode=%#lo", (u_long)savemode); 431 if (keys & F_NLINK) 432 fprintf(fp, " nlink=1"); 433 if (keys & F_FLAGS) { 434 char *str = flags_to_string(saveflags, "none"); 435 fprintf(fp, " flags=%s", str); 436 free(str); 437 } 438 fprintf(fp, "\n"); 439 *puid = saveuid; 440 *pgid = savegid; 441 *pmode = savemode; 442 *pflags = saveflags; 443 } 444 return (0); 445 } 446 447 /* 448 * dcmp -- 449 * used as a comparison function passed to fts_open() to control 450 * the order in which fts_read() returns results. We make 451 * directories sort after non-directories, but otherwise sort in 452 * strcmp() order. 453 * 454 * Keep this in sync with nodecmp() in spec.c. 455 */ 456 static int 457 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 458 { 459 460 if (S_ISDIR((*a)->fts_statp->st_mode)) { 461 if (!S_ISDIR((*b)->fts_statp->st_mode)) 462 return (1); 463 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 464 return (-1); 465 return (strcmp((*a)->fts_name, (*b)->fts_name)); 466 } 467 468 void 469 output(FILE *fp, int indent, int *offset, const char *fmt, ...) 470 { 471 va_list ap; 472 char buf[1024]; 473 474 va_start(ap, fmt); 475 vsnprintf(buf, sizeof(buf), fmt, ap); 476 va_end(ap); 477 478 if (*offset + strlen(buf) > MAXLINELEN - 3) { 479 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, ""); 480 *offset = INDENTNAMELEN + indent; 481 } 482 *offset += fprintf(fp, " %s", buf) + 1; 483 } 484
Indexes created Mon Sep 22 21:09:42 GMT 2025