create.c revision 1.79
1 /* $NetBSD: create.c,v 1.79 2024/12/05 17:17:43 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 1.79 2024/12/05 17:17:43 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 static void output(FILE *, int, int *, const char *, ...) 88 __printflike(4, 5); 89 static int statd(FILE *, FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, 90 u_long *); 91 static void statf(FILE *, int, FTSENT *); 92 93 void 94 cwalk(FILE *fp) 95 { 96 FTS *t; 97 FTSENT *p; 98 time_t clocktime; 99 char host[MAXHOSTNAMELEN + 1]; 100 const char *user; 101 char *argv[2]; 102 char dot[] = "."; 103 int indent = 0; 104 105 argv[0] = dot; 106 argv[1] = NULL; 107 108 time(&clocktime); 109 gethostname(host, sizeof(host)); 110 host[sizeof(host) - 1] = '\0'; 111 if ((user = getlogin()) == NULL) { 112 struct passwd *pw; 113 user = (pw = getpwuid(getuid())) != NULL ? pw->pw_name : 114 "<unknown>"; 115 } 116 117 if (!nflag) 118 fprintf(fp, 119 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n" 120 "#\t date: %s", 121 user, host, fullpath, ctime(&clocktime)); 122 123 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL) 124 mtree_err("fts_open: %s", strerror(errno)); 125 while ((p = fts_read(t)) != NULL) { 126 if (jflag) 127 indent = p->fts_level * 4; 128 if (check_excludes(p->fts_name, p->fts_path)) { 129 fts_set(t, p, FTS_SKIP); 130 continue; 131 } 132 if (!find_only(p->fts_path)) { 133 fts_set(t, p, FTS_SKIP); 134 continue; 135 } 136 switch(p->fts_info) { 137 case FTS_D: 138 if (!bflag) 139 fprintf(fp, "\n"); 140 if (!nflag) 141 fprintf(fp, "# %s\n", p->fts_path); 142 statd(fp, t, p, &uid, &gid, &mode, &flags); 143 statf(fp, indent, p); 144 break; 145 case FTS_DP: 146 if (p->fts_level > 0) 147 if (!nflag) 148 fprintf(fp, "%*s# %s\n", indent, "", 149 p->fts_path); 150 if (p->fts_level > 0 || flavor == F_FREEBSD9) { 151 fprintf(fp, "%*s..\n", indent, ""); 152 if (!bflag) 153 fprintf(fp, "\n"); 154 } 155 break; 156 case FTS_DNR: 157 case FTS_ERR: 158 case FTS_NS: 159 mtree_err("%s: %s", 160 p->fts_path, strerror(p->fts_errno)); 161 break; 162 default: 163 if (!dflag) 164 statf(fp, indent, p); 165 break; 166 167 } 168 } 169 if (errno != 0) 170 mtree_err("fts_read: %s", strerror(errno)); 171 fts_close(t); 172 if (sflag && keys & F_CKSUM) 173 mtree_err("%s checksum: %u", fullpath, crc_total); 174 } 175 176 static void 177 dosum(FILE *fp, int indent, FTSENT *p, int *offset, int flag, 178 char * (*func)(const char *, char *), const char *key) 179 { 180 char *digestbuf; 181 182 if ((keys & flag) == 0) 183 return; 184 185 digestbuf = (*func)(p->fts_accpath, NULL); 186 if (digestbuf != NULL) { 187 output(fp, indent, offset, "%s=%s", key, digestbuf); 188 free(digestbuf); 189 return; 190 } 191 192 if (qflag) { 193 warn("%s: %s failed", p->fts_path, key); 194 return; 195 } 196 197 mtree_err("%s: %s failed: %s", p->fts_path, key, strerror(errno)); 198 } 199 200 static char * 201 crcFile(const char *fname, char *dummy __unused) 202 { 203 char *ptr; 204 uint32_t val, len; 205 int fd, e; 206 207 if ((fd = open(fname, O_RDONLY)) == -1) 208 goto out; 209 210 e = crc(fd, &val, &len); 211 close(fd); 212 if (e) 213 goto out; 214 215 if (asprintf(&ptr, "%u", val) < 0) 216 goto out; 217 218 return ptr; 219 out: 220 mtree_err("%s: %s", fname, strerror(errno)); 221 return NULL; 222 } 223 224 static void 225 statf(FILE *fp, int indent, FTSENT *p) 226 { 227 int offset; 228 const char *name = NULL; 229 230 offset = fprintf(fp, "%*s%s%s", indent, "", 231 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 232 233 if (offset > (INDENTNAMELEN + indent)) 234 offset = MAXLINELEN; 235 else 236 offset += fprintf(fp, "%*s", 237 (INDENTNAMELEN + indent) - offset, ""); 238 239 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 240 output(fp, indent, &offset, "type=%s", 241 inotype(p->fts_statp->st_mode)); 242 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 243 if (keys & F_UNAME && 244 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 245 output(fp, indent, &offset, "uname=%s", name); 246 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 247 output(fp, indent, &offset, "uid=%u", 248 p->fts_statp->st_uid); 249 } 250 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 251 if (keys & F_GNAME && 252 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 253 output(fp, indent, &offset, "gname=%s", name); 254 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 255 output(fp, indent, &offset, "gid=%u", 256 p->fts_statp->st_gid); 257 } 258 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 259 output(fp, indent, &offset, "mode=%#o", 260 p->fts_statp->st_mode & MBITS); 261 if (keys & F_DEV && 262 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 263 output(fp, indent, &offset, "device=%#jx", 264 (uintmax_t)p->fts_statp->st_rdev); 265 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 266 output(fp, indent, &offset, "nlink=%ju", 267 (uintmax_t)p->fts_statp->st_nlink); 268 if (keys & F_SIZE && 269 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 270 output(fp, indent, &offset, "size=%ju", 271 (uintmax_t)p->fts_statp->st_size); 272 if (keys & F_TIME) 273 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 274 output(fp, indent, &offset, "time=%jd.%09ld", 275 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 276 p->fts_statp->st_mtimespec.tv_nsec); 277 #else 278 output(fp, indent, &offset, "time=%jd.%09ld", 279 (intmax_t)p->fts_statp->st_mtime, (long)0); 280 #endif 281 if (S_ISREG(p->fts_statp->st_mode)) { 282 dosum(fp, indent, p, &offset, F_CKSUM, crcFile, "cksum"); 283 #ifndef NO_MD5 284 dosum(fp, indent, p, &offset, F_MD5, MD5File, MD5KEY); 285 #endif /* ! NO_MD5 */ 286 #ifndef NO_RMD160 287 dosum(fp, indent, p, &offset, F_RMD160, RMD160File, RMD160KEY); 288 #endif /* ! NO_RMD160 */ 289 #ifndef NO_SHA1 290 dosum(fp, indent, p, &offset, F_SHA1, SHA1File, SHA1KEY); 291 #endif /* ! NO_SHA1 */ 292 #ifndef NO_SHA2 293 dosum(fp, indent, p, &offset, F_SHA256, SHA256_File, SHA256KEY); 294 #ifdef SHA384_BLOCK_LENGTH 295 dosum(fp, indent, p, &offset, F_SHA384, SHA384_File, SHA384KEY); 296 #endif 297 dosum(fp, indent, p, &offset, F_SHA512, SHA512_File, SHA512KEY); 298 #endif /* ! NO_SHA2 */ 299 } 300 if (keys & F_SLINK && 301 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 302 output(fp, indent, &offset, "link=%s", 303 vispath(rlink(p->fts_accpath))); 304 #if HAVE_STRUCT_STAT_ST_FLAGS 305 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 306 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 307 output(fp, indent, &offset, "flags=%s", str); 308 free(str); 309 } 310 #endif 311 putchar('\n'); 312 } 313 314 /* XXX 315 * FLAGS2INDEX will fail once the user and system settable bits need more 316 * than one byte, respectively. 317 */ 318 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 319 320 #define MTREE_MAXGID 5000 321 #define MTREE_MAXUID 5000 322 #define MTREE_MAXMODE (MBITS + 1) 323 #if HAVE_STRUCT_STAT_ST_FLAGS 324 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 325 #else 326 #define MTREE_MAXFLAGS 1 327 #endif 328 #define MTREE_MAXS 16 329 330 static int 331 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 332 u_long *pflags) 333 { 334 FTSENT *p; 335 gid_t sgid; 336 uid_t suid; 337 mode_t smode; 338 u_long sflags = 0; 339 const char *name = NULL; 340 gid_t savegid; 341 uid_t saveuid; 342 mode_t savemode; 343 u_long saveflags; 344 u_short maxgid, maxuid, maxmode, maxflags; 345 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 346 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 347 static int first = 1; 348 349 savegid = *pgid; 350 saveuid = *puid; 351 savemode = *pmode; 352 saveflags = *pflags; 353 if ((p = fts_children(t, 0)) == NULL) { 354 if (errno) 355 mtree_err("%s: %s", RP(parent), strerror(errno)); 356 return (1); 357 } 358 359 memset(g, 0, sizeof(g)); 360 memset(u, 0, sizeof(u)); 361 memset(m, 0, sizeof(m)); 362 memset(f, 0, sizeof(f)); 363 364 maxuid = maxgid = maxmode = maxflags = 0; 365 for (; p; p = p->fts_link) { 366 if (flavor == F_NETBSD6 || !dflag || 367 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 368 smode = p->fts_statp->st_mode & MBITS; 369 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 370 savemode = smode; 371 maxmode = m[smode]; 372 } 373 sgid = p->fts_statp->st_gid; 374 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 375 savegid = sgid; 376 maxgid = g[sgid]; 377 } 378 suid = p->fts_statp->st_uid; 379 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 380 saveuid = suid; 381 maxuid = u[suid]; 382 } 383 384 #if HAVE_STRUCT_STAT_ST_FLAGS 385 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 386 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 387 saveflags = p->fts_statp->st_flags; 388 maxflags = f[sflags]; 389 } 390 #endif 391 } 392 } 393 /* 394 * If the /set record is the same as the last one we do not need to 395 * output a new one. So first we check to see if anything changed. 396 * Note that we always output a /set record for the first directory. 397 */ 398 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 399 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 400 ((keys & F_MODE) && (*pmode != savemode)) || 401 ((keys & F_FLAGS) && (*pflags != saveflags)) || 402 first) { 403 first = 0; 404 if (flavor != F_NETBSD6 && dflag) 405 fprintf(fp, "/set type=dir"); 406 else 407 fprintf(fp, "/set type=file"); 408 if (keys & (F_UID | F_UNAME)) { 409 if (keys & F_UNAME && 410 (name = user_from_uid(saveuid, 1)) != NULL) 411 fprintf(fp, " uname=%s", name); 412 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 413 fprintf(fp, " uid=%lu", (u_long)saveuid); 414 } 415 if (keys & (F_GID | F_GNAME)) { 416 if (keys & F_GNAME && 417 (name = group_from_gid(savegid, 1)) != NULL) 418 fprintf(fp, " gname=%s", name); 419 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 420 fprintf(fp, " gid=%lu", (u_long)savegid); 421 } 422 if (keys & F_MODE) 423 fprintf(fp, " mode=%#lo", (u_long)savemode); 424 if (keys & F_NLINK) 425 fprintf(fp, " nlink=1"); 426 if (keys & F_FLAGS) { 427 char *str = flags_to_string(saveflags, "none"); 428 fprintf(fp, " flags=%s", str); 429 free(str); 430 } 431 fprintf(fp, "\n"); 432 *puid = saveuid; 433 *pgid = savegid; 434 *pmode = savemode; 435 *pflags = saveflags; 436 } 437 return (0); 438 } 439 440 void 441 output(FILE *fp, int indent, int *offset, const char *fmt, ...) 442 { 443 va_list ap; 444 char buf[1024]; 445 446 va_start(ap, fmt); 447 vsnprintf(buf, sizeof(buf), fmt, ap); 448 va_end(ap); 449 450 if (*offset + strlen(buf) > MAXLINELEN - 3) { 451 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, ""); 452 *offset = INDENTNAMELEN + indent; 453 } 454 *offset += fprintf(fp, " %s", buf) + 1; 455 } 456
Indexes created Tue Sep 23 23:09:58 GMT 2025