create.c revision 1.67
1 /* $NetBSD: create.c,v 1.67 2012/12/15 01:24:40 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 1.67 2012/12/15 01:24:40 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 printf("\n"); 140 if (!nflag) 141 printf("# %s\n", p->fts_path); 142 statd(t, p, &uid, &gid, &mode, &flags); 143 statf(indent, p); 144 break; 145 case FTS_DP: 146 if (p->fts_level > 0) { 147 if (!nflag) 148 printf("%*s# %s\n", indent, "", 149 p->fts_path); 150 printf("%*s..\n\n", indent, ""); 151 } 152 break; 153 case FTS_DNR: 154 case FTS_ERR: 155 case FTS_NS: 156 mtree_err("%s: %s", 157 p->fts_path, strerror(p->fts_errno)); 158 break; 159 default: 160 if (!dflag) 161 statf(indent, p); 162 break; 163 164 } 165 } 166 fts_close(t); 167 if (sflag && keys & F_CKSUM) 168 mtree_err("%s checksum: %u", fullpath, crc_total); 169 } 170 171 static void 172 statf(int indent, FTSENT *p) 173 { 174 u_int32_t len, val; 175 int fd, offset; 176 const char *name = NULL; 177 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 178 char *digestbuf; 179 #endif 180 181 offset = printf("%*s%s%s", indent, "", 182 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 183 184 if (offset > (INDENTNAMELEN + indent)) 185 offset = MAXLINELEN; 186 else 187 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 188 189 if (!S_ISREG(p->fts_statp->st_mode)) 190 output(indent, &offset, "type=%s", 191 inotype(p->fts_statp->st_mode)); 192 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 193 if (keys & F_UNAME && 194 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 195 output(indent, &offset, "uname=%s", name); 196 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 197 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 198 } 199 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 200 if (keys & F_GNAME && 201 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 202 output(indent, &offset, "gname=%s", name); 203 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 204 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 205 } 206 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 207 output(indent, &offset, "mode=%#o", 208 p->fts_statp->st_mode & MBITS); 209 if (keys & F_DEV && 210 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 211 output(indent, &offset, "device=%#llx", 212 (long long)p->fts_statp->st_rdev); 213 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 214 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 215 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 216 output(indent, &offset, "size=%lld", 217 (long long)p->fts_statp->st_size); 218 if (keys & F_TIME) 219 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 220 output(indent, &offset, "time=%ld.%09ld", 221 (long)p->fts_statp->st_mtimespec.tv_sec, 222 p->fts_statp->st_mtimespec.tv_nsec); 223 #else 224 output(indent, &offset, "time=%ld.%09ld", 225 (long)p->fts_statp->st_mtime, (long)0); 226 #endif 227 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 228 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 229 crc(fd, &val, &len)) 230 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 231 close(fd); 232 output(indent, &offset, "cksum=%lu", (long)val); 233 } 234 #ifndef NO_MD5 235 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 236 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 237 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 238 strerror(errno)); 239 output(indent, &offset, "%s=%s", MD5KEY, digestbuf); 240 free(digestbuf); 241 } 242 #endif /* ! NO_MD5 */ 243 #ifndef NO_RMD160 244 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 245 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 246 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 247 strerror(errno)); 248 output(indent, &offset, "%s=%s", RMD160KEY, digestbuf); 249 free(digestbuf); 250 } 251 #endif /* ! NO_RMD160 */ 252 #ifndef NO_SHA1 253 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 254 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 255 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 256 strerror(errno)); 257 output(indent, &offset, "%s=%s", SHA1KEY, digestbuf); 258 free(digestbuf); 259 } 260 #endif /* ! NO_SHA1 */ 261 #ifndef NO_SHA2 262 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 263 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 264 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 265 strerror(errno)); 266 output(indent, &offset, "%s=%s", SHA256KEY, digestbuf); 267 free(digestbuf); 268 } 269 #ifdef SHA384_BLOCK_LENGTH 270 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 271 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 272 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 273 strerror(errno)); 274 output(indent, &offset, "%s=%s", SHA384KEY, digestbuf); 275 free(digestbuf); 276 } 277 #endif 278 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 279 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 280 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 281 strerror(errno)); 282 output(indent, &offset, "%s=%s", SHA512KEY, digestbuf); 283 free(digestbuf); 284 } 285 #endif /* ! NO_SHA2 */ 286 if (keys & F_SLINK && 287 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 288 output(indent, &offset, "link=%s", 289 vispath(rlink(p->fts_accpath))); 290 #if HAVE_STRUCT_STAT_ST_FLAGS 291 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 292 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 293 output(indent, &offset, "flags=%s", str); 294 free(str); 295 } 296 #endif 297 putchar('\n'); 298 } 299 300 /* XXX 301 * FLAGS2INDEX will fail once the user and system settable bits need more 302 * than one byte, respectively. 303 */ 304 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 305 306 #define MTREE_MAXGID 5000 307 #define MTREE_MAXUID 5000 308 #define MTREE_MAXMODE (MBITS + 1) 309 #if HAVE_STRUCT_STAT_ST_FLAGS 310 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 311 #else 312 #define MTREE_MAXFLAGS 1 313 #endif 314 #define MTREE_MAXS 16 315 316 static int 317 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 318 u_long *pflags) 319 { 320 FTSENT *p; 321 gid_t sgid; 322 uid_t suid; 323 mode_t smode; 324 u_long sflags = 0; 325 const char *name = NULL; 326 gid_t savegid; 327 uid_t saveuid; 328 mode_t savemode; 329 u_long saveflags; 330 u_short maxgid, maxuid, maxmode, maxflags; 331 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 332 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 333 static int first = 1; 334 335 savegid = *pgid; 336 saveuid = *puid; 337 savemode = *pmode; 338 saveflags = *pflags; 339 if ((p = fts_children(t, 0)) == NULL) { 340 if (errno) 341 mtree_err("%s: %s", RP(parent), strerror(errno)); 342 return (1); 343 } 344 345 memset(g, 0, sizeof(g)); 346 memset(u, 0, sizeof(u)); 347 memset(m, 0, sizeof(m)); 348 memset(f, 0, sizeof(f)); 349 350 maxuid = maxgid = maxmode = maxflags = 0; 351 for (; p; p = p->fts_link) { 352 smode = p->fts_statp->st_mode & MBITS; 353 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 354 savemode = smode; 355 maxmode = m[smode]; 356 } 357 sgid = p->fts_statp->st_gid; 358 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 359 savegid = sgid; 360 maxgid = g[sgid]; 361 } 362 suid = p->fts_statp->st_uid; 363 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 364 saveuid = suid; 365 maxuid = u[suid]; 366 } 367 368 #if HAVE_STRUCT_STAT_ST_FLAGS 369 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 370 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 371 saveflags = p->fts_statp->st_flags; 372 maxflags = f[sflags]; 373 } 374 #endif 375 } 376 /* 377 * If the /set record is the same as the last one we do not need to 378 * output a new one. So first we check to see if anything changed. 379 * Note that we always output a /set record for the first directory. 380 */ 381 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 382 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 383 ((keys & F_MODE) && (*pmode != savemode)) || 384 ((keys & F_FLAGS) && (*pflags != saveflags)) || 385 first) { 386 first = 0; 387 printf("/set type=file"); 388 if (keys & (F_UID | F_UNAME)) { 389 if (keys & F_UNAME && 390 (name = user_from_uid(saveuid, 1)) != NULL) 391 printf(" uname=%s", name); 392 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 393 printf(" uid=%lu", (u_long)saveuid); 394 } 395 if (keys & (F_GID | F_GNAME)) { 396 if (keys & F_GNAME && 397 (name = group_from_gid(savegid, 1)) != NULL) 398 printf(" gname=%s", name); 399 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 400 printf(" gid=%lu", (u_long)savegid); 401 } 402 if (keys & F_MODE) 403 printf(" mode=%#lo", (u_long)savemode); 404 if (keys & F_NLINK) 405 printf(" nlink=1"); 406 if (keys & F_FLAGS) { 407 char *str = flags_to_string(saveflags, "none"); 408 printf(" flags=%s", str); 409 free(str); 410 } 411 printf("\n"); 412 *puid = saveuid; 413 *pgid = savegid; 414 *pmode = savemode; 415 *pflags = saveflags; 416 } 417 return (0); 418 } 419 420 /* 421 * dcmp -- 422 * used as a comparison function passed to fts_open() to control 423 * the order in which fts_read() returns results. We make 424 * directories sort after non-directories, but otherwise sort in 425 * strcmp() order. 426 * 427 * Keep this in sync with nodecmp() in spec.c. 428 */ 429 static int 430 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 431 { 432 433 if (S_ISDIR((*a)->fts_statp->st_mode)) { 434 if (!S_ISDIR((*b)->fts_statp->st_mode)) 435 return (1); 436 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 437 return (-1); 438 return (strcmp((*a)->fts_name, (*b)->fts_name)); 439 } 440 441 void 442 output(int indent, int *offset, const char *fmt, ...) 443 { 444 va_list ap; 445 char buf[1024]; 446 447 va_start(ap, fmt); 448 vsnprintf(buf, sizeof(buf), fmt, ap); 449 va_end(ap); 450 451 if (*offset + strlen(buf) > MAXLINELEN - 3) { 452 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 453 *offset = INDENTNAMELEN + indent; 454 } 455 *offset += printf(" %s", buf) + 1; 456 } 457
Indexes created Thu Sep 25 16:09:42 GMT 2025