create.c revision 1.66
1 /* $NetBSD: create.c,v 1.66 2012/12/12 15:50:35 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 1.66 2012/12/12 15:50:35 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 <stdlib.h> 59 #include <string.h> 60 #include <time.h> 61 #include <unistd.h> 62 63 #ifndef NO_MD5 64 #include <md5.h> 65 #endif 66 #ifndef NO_RMD160 67 #include <rmd160.h> 68 #endif 69 #ifndef NO_SHA1 70 #include <sha1.h> 71 #endif 72 #ifndef NO_SHA2 73 #include <sha2.h> 74 #endif 75 76 #include "extern.h" 77 78 #define INDENTNAMELEN 15 79 #define MAXLINELEN 80 80 81 static gid_t gid; 82 static uid_t uid; 83 static mode_t mode; 84 static u_long flags; 85 86 #ifdef __FreeBSD__ 87 #define FTS_CONST const 88 #else 89 #define FTS_CONST 90 #endif 91 92 static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *); 93 static void output(int, int *, const char *, ...) 94 __attribute__((__format__(__printf__, 3, 4))); 95 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *); 96 static void statf(int, FTSENT *); 97 98 void 99 cwalk(void) 100 { 101 FTS *t; 102 FTSENT *p; 103 time_t clocktime; 104 char host[MAXHOSTNAMELEN + 1]; 105 const char *user; 106 char *argv[2]; 107 char dot[] = "."; 108 int indent = 0; 109 110 argv[0] = dot; 111 argv[1] = NULL; 112 113 time(&clocktime); 114 gethostname(host, sizeof(host)); 115 host[sizeof(host) - 1] = '\0'; 116 if ((user = getlogin()) == NULL) { 117 struct passwd *pw; 118 user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name : 119 "<unknown>"; 120 } 121 122 if (!nflag) 123 printf( 124 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n" 125 "#\t date: %s", 126 user, host, fullpath, ctime(&clocktime)); 127 128 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL) 129 mtree_err("fts_open: %s", strerror(errno)); 130 while ((p = fts_read(t)) != NULL) { 131 if (jflag) 132 indent = p->fts_level * 4; 133 if (check_excludes(p->fts_name, p->fts_path)) { 134 fts_set(t, p, FTS_SKIP); 135 continue; 136 } 137 switch(p->fts_info) { 138 case FTS_D: 139 if (!nflag) 140 printf("\n# %s\n", p->fts_path); 141 statd(t, p, &uid, &gid, &mode, &flags); 142 statf(indent, p); 143 break; 144 case FTS_DP: 145 if (p->fts_level > 0) { 146 if (!nflag) 147 printf("%*s# %s\n", indent, "", 148 p->fts_path); 149 printf("%*s..\n\n", indent, ""); 150 } 151 break; 152 case FTS_DNR: 153 case FTS_ERR: 154 case FTS_NS: 155 mtree_err("%s: %s", 156 p->fts_path, strerror(p->fts_errno)); 157 break; 158 default: 159 if (!dflag) 160 statf(indent, p); 161 break; 162 163 } 164 } 165 fts_close(t); 166 if (sflag && keys & F_CKSUM) 167 mtree_err("%s checksum: %u", fullpath, crc_total); 168 } 169 170 static void 171 statf(int indent, FTSENT *p) 172 { 173 u_int32_t len, val; 174 int fd, offset; 175 const char *name = NULL; 176 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 177 char *digestbuf; 178 #endif 179 180 offset = printf("%*s%s%s", indent, "", 181 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 182 183 if (offset > (INDENTNAMELEN + indent)) 184 offset = MAXLINELEN; 185 else 186 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 187 188 if (!S_ISREG(p->fts_statp->st_mode)) 189 output(indent, &offset, "type=%s", 190 inotype(p->fts_statp->st_mode)); 191 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 192 if (keys & F_UNAME && 193 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 194 output(indent, &offset, "uname=%s", name); 195 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 196 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 197 } 198 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 199 if (keys & F_GNAME && 200 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 201 output(indent, &offset, "gname=%s", name); 202 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 203 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 204 } 205 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 206 output(indent, &offset, "mode=%#o", 207 p->fts_statp->st_mode & MBITS); 208 if (keys & F_DEV && 209 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 210 output(indent, &offset, "device=%#llx", 211 (long long)p->fts_statp->st_rdev); 212 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 213 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 214 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 215 output(indent, &offset, "size=%lld", 216 (long long)p->fts_statp->st_size); 217 if (keys & F_TIME) 218 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 219 output(indent, &offset, "time=%ld.%09ld", 220 (long)p->fts_statp->st_mtimespec.tv_sec, 221 p->fts_statp->st_mtimespec.tv_nsec); 222 #else 223 output(indent, &offset, "time=%ld.%09ld", 224 (long)p->fts_statp->st_mtime, (long)0); 225 #endif 226 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 227 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 228 crc(fd, &val, &len)) 229 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 230 close(fd); 231 output(indent, &offset, "cksum=%lu", (long)val); 232 } 233 #ifndef NO_MD5 234 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 235 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 236 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 237 strerror(errno)); 238 output(indent, &offset, "%s=%s", MD5KEY, digestbuf); 239 free(digestbuf); 240 } 241 #endif /* ! NO_MD5 */ 242 #ifndef NO_RMD160 243 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 244 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 245 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 246 strerror(errno)); 247 output(indent, &offset, "%s=%s", RMD160KEY, digestbuf); 248 free(digestbuf); 249 } 250 #endif /* ! NO_RMD160 */ 251 #ifndef NO_SHA1 252 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 253 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 254 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 255 strerror(errno)); 256 output(indent, &offset, "%s=%s", SHA1KEY, digestbuf); 257 free(digestbuf); 258 } 259 #endif /* ! NO_SHA1 */ 260 #ifndef NO_SHA2 261 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 262 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 263 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 264 strerror(errno)); 265 output(indent, &offset, "%s=%s", SHA256KEY, digestbuf); 266 free(digestbuf); 267 } 268 #ifdef SHA384_BLOCK_LENGTH 269 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 270 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 271 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 272 strerror(errno)); 273 output(indent, &offset, "%s=%s", SHA384KEY, digestbuf); 274 free(digestbuf); 275 } 276 #endif 277 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 278 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 279 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 280 strerror(errno)); 281 output(indent, &offset, "%s=%s", SHA512KEY, digestbuf); 282 free(digestbuf); 283 } 284 #endif /* ! NO_SHA2 */ 285 if (keys & F_SLINK && 286 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 287 output(indent, &offset, "link=%s", 288 vispath(rlink(p->fts_accpath))); 289 #if HAVE_STRUCT_STAT_ST_FLAGS 290 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 291 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 292 output(indent, &offset, "flags=%s", str); 293 free(str); 294 } 295 #endif 296 putchar('\n'); 297 } 298 299 /* XXX 300 * FLAGS2INDEX will fail once the user and system settable bits need more 301 * than one byte, respectively. 302 */ 303 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 304 305 #define MTREE_MAXGID 5000 306 #define MTREE_MAXUID 5000 307 #define MTREE_MAXMODE (MBITS + 1) 308 #if HAVE_STRUCT_STAT_ST_FLAGS 309 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 310 #else 311 #define MTREE_MAXFLAGS 1 312 #endif 313 #define MTREE_MAXS 16 314 315 static int 316 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 317 u_long *pflags) 318 { 319 FTSENT *p; 320 gid_t sgid; 321 uid_t suid; 322 mode_t smode; 323 u_long sflags = 0; 324 const char *name = NULL; 325 gid_t savegid; 326 uid_t saveuid; 327 mode_t savemode; 328 u_long saveflags; 329 u_short maxgid, maxuid, maxmode, maxflags; 330 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 331 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 332 static int first = 1; 333 334 savegid = *pgid; 335 saveuid = *puid; 336 savemode = *pmode; 337 saveflags = *pflags; 338 if ((p = fts_children(t, 0)) == NULL) { 339 if (errno) 340 mtree_err("%s: %s", RP(parent), strerror(errno)); 341 return (1); 342 } 343 344 memset(g, 0, sizeof(g)); 345 memset(u, 0, sizeof(u)); 346 memset(m, 0, sizeof(m)); 347 memset(f, 0, sizeof(f)); 348 349 maxuid = maxgid = maxmode = maxflags = 0; 350 for (; p; p = p->fts_link) { 351 smode = p->fts_statp->st_mode & MBITS; 352 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 353 savemode = smode; 354 maxmode = m[smode]; 355 } 356 sgid = p->fts_statp->st_gid; 357 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 358 savegid = sgid; 359 maxgid = g[sgid]; 360 } 361 suid = p->fts_statp->st_uid; 362 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 363 saveuid = suid; 364 maxuid = u[suid]; 365 } 366 367 #if HAVE_STRUCT_STAT_ST_FLAGS 368 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 369 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 370 saveflags = p->fts_statp->st_flags; 371 maxflags = f[sflags]; 372 } 373 #endif 374 } 375 /* 376 * If the /set record is the same as the last one we do not need to 377 * output a new one. So first we check to see if anything changed. 378 * Note that we always output a /set record for the first directory. 379 */ 380 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 381 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 382 ((keys & F_MODE) && (*pmode != savemode)) || 383 ((keys & F_FLAGS) && (*pflags != saveflags)) || 384 first) { 385 first = 0; 386 printf("/set type=file"); 387 if (keys & (F_UID | F_UNAME)) { 388 if (keys & F_UNAME && 389 (name = user_from_uid(saveuid, 1)) != NULL) 390 printf(" uname=%s", name); 391 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 392 printf(" uid=%lu", (u_long)saveuid); 393 } 394 if (keys & (F_GID | F_GNAME)) { 395 if (keys & F_GNAME && 396 (name = group_from_gid(savegid, 1)) != NULL) 397 printf(" gname=%s", name); 398 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 399 printf(" gid=%lu", (u_long)savegid); 400 } 401 if (keys & F_MODE) 402 printf(" mode=%#lo", (u_long)savemode); 403 if (keys & F_NLINK) 404 printf(" nlink=1"); 405 if (keys & F_FLAGS) { 406 char *str = flags_to_string(saveflags, "none"); 407 printf(" flags=%s", str); 408 free(str); 409 } 410 printf("\n"); 411 *puid = saveuid; 412 *pgid = savegid; 413 *pmode = savemode; 414 *pflags = saveflags; 415 } 416 return (0); 417 } 418 419 /* 420 * dcmp -- 421 * used as a comparison function passed to fts_open() to control 422 * the order in which fts_read() returns results. We make 423 * directories sort after non-directories, but otherwise sort in 424 * strcmp() order. 425 * 426 * Keep this in sync with nodecmp() in spec.c. 427 */ 428 static int 429 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 430 { 431 432 if (S_ISDIR((*a)->fts_statp->st_mode)) { 433 if (!S_ISDIR((*b)->fts_statp->st_mode)) 434 return (1); 435 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 436 return (-1); 437 return (strcmp((*a)->fts_name, (*b)->fts_name)); 438 } 439 440 void 441 output(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 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 452 *offset = INDENTNAMELEN + indent; 453 } 454 *offset += printf(" %s", buf) + 1; 455 } 456
Indexes created Mon Sep 22 13:09:51 GMT 2025