create.c revision 1.60
1 /* $NetBSD: create.c,v 1.60 2012/10/05 00:41:24 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 1.60 2012/10/05 00:41:24 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 static int dcmp(const FTSENT *const *, const FTSENT *const *); 87 static void output(int *, const char *, ...) 88 __attribute__((__format__(__printf__, 2, 3))); 89 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *); 90 static void statf(FTSENT *); 91 92 void 93 cwalk(void) 94 { 95 FTS *t; 96 FTSENT *p; 97 time_t clocktime; 98 char host[MAXHOSTNAMELEN + 1]; 99 const char *user; 100 char *argv[2]; 101 char dot[] = "."; 102 103 argv[0] = dot; 104 argv[1] = NULL; 105 106 time(&clocktime); 107 gethostname(host, sizeof(host)); 108 host[sizeof(host) - 1] = '\0'; 109 if ((user = getlogin()) == NULL) { 110 struct passwd *pw; 111 user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name : 112 "<unknown>"; 113 } 114 115 printf( 116 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 117 user, host, fullpath, ctime(&clocktime)); 118 119 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL) 120 mtree_err("fts_open: %s", strerror(errno)); 121 while ((p = fts_read(t)) != NULL) { 122 if (check_excludes(p->fts_name, p->fts_path)) { 123 fts_set(t, p, FTS_SKIP); 124 continue; 125 } 126 switch(p->fts_info) { 127 case FTS_D: 128 printf("\n# %s\n", p->fts_path); 129 statd(t, p, &uid, &gid, &mode, &flags); 130 statf(p); 131 break; 132 case FTS_DP: 133 if (p->fts_level > 0) 134 printf("# %s\n..\n\n", p->fts_path); 135 break; 136 case FTS_DNR: 137 case FTS_ERR: 138 case FTS_NS: 139 mtree_err("%s: %s", 140 p->fts_path, strerror(p->fts_errno)); 141 break; 142 default: 143 if (!dflag) 144 statf(p); 145 break; 146 147 } 148 } 149 fts_close(t); 150 if (sflag && keys & F_CKSUM) 151 mtree_err("%s checksum: %u", fullpath, crc_total); 152 } 153 154 static void 155 statf(FTSENT *p) 156 { 157 u_int32_t len, val; 158 int fd, indent; 159 const char *name; 160 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 161 char *digestbuf; 162 #endif 163 164 indent = printf("%s%s", 165 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 166 167 if (indent > INDENTNAMELEN) 168 indent = MAXLINELEN; 169 else 170 indent += printf("%*s", INDENTNAMELEN - indent, ""); 171 172 if (!S_ISREG(p->fts_statp->st_mode)) 173 output(&indent, "type=%s", inotype(p->fts_statp->st_mode)); 174 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 175 if (keys & F_UNAME && 176 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 177 output(&indent, "uname=%s", name); 178 else /* if (keys & F_UID) */ 179 output(&indent, "uid=%u", p->fts_statp->st_uid); 180 } 181 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 182 if (keys & F_GNAME && 183 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 184 output(&indent, "gname=%s", name); 185 else /* if (keys & F_GID) */ 186 output(&indent, "gid=%u", p->fts_statp->st_gid); 187 } 188 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 189 output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS); 190 if (keys & F_DEV && 191 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 192 output(&indent, "device=%#llx", 193 (long long)p->fts_statp->st_rdev); 194 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 195 output(&indent, "nlink=%u", p->fts_statp->st_nlink); 196 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 197 output(&indent, "size=%lld", (long long)p->fts_statp->st_size); 198 if (keys & F_TIME) 199 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 200 output(&indent, "time=%ld.%ld", 201 (long)p->fts_statp->st_mtimespec.tv_sec, 202 p->fts_statp->st_mtimespec.tv_nsec); 203 #else 204 output(&indent, "time=%ld.%ld", 205 (long)p->fts_statp->st_mtime, (long)0); 206 #endif 207 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 208 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 209 crc(fd, &val, &len)) 210 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 211 close(fd); 212 output(&indent, "cksum=%lu", (long)val); 213 } 214 #ifndef NO_MD5 215 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 216 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 217 mtree_err("%s: MD5File failed: %s", p->fts_accpath, strerror(errno)); 218 output(&indent, "md5=%s", digestbuf); 219 free(digestbuf); 220 } 221 #endif /* ! NO_MD5 */ 222 #ifndef NO_RMD160 223 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 224 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 225 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, strerror(errno)); 226 output(&indent, "rmd160=%s", digestbuf); 227 free(digestbuf); 228 } 229 #endif /* ! NO_RMD160 */ 230 #ifndef NO_SHA1 231 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 232 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 233 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, strerror(errno)); 234 output(&indent, "sha1=%s", digestbuf); 235 free(digestbuf); 236 } 237 #endif /* ! NO_SHA1 */ 238 #ifndef NO_SHA2 239 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 240 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 241 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, strerror(errno)); 242 output(&indent, "sha256=%s", digestbuf); 243 free(digestbuf); 244 } 245 #ifdef SHA384_BLOCK_LENGTH 246 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 247 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 248 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, strerror(errno)); 249 output(&indent, "sha384=%s", digestbuf); 250 free(digestbuf); 251 } 252 #endif 253 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 254 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 255 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, strerror(errno)); 256 output(&indent, "sha512=%s", digestbuf); 257 free(digestbuf); 258 } 259 #endif /* ! NO_SHA2 */ 260 if (keys & F_SLINK && 261 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 262 output(&indent, "link=%s", vispath(rlink(p->fts_accpath))); 263 #if HAVE_STRUCT_STAT_ST_FLAGS 264 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 265 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 266 output(&indent, "flags=%s", str); 267 free(str); 268 } 269 #endif 270 putchar('\n'); 271 } 272 273 /* XXX 274 * FLAGS2INDEX will fail once the user and system settable bits need more 275 * than one byte, respectively. 276 */ 277 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 278 279 #define MTREE_MAXGID 5000 280 #define MTREE_MAXUID 5000 281 #define MTREE_MAXMODE (MBITS + 1) 282 #if HAVE_STRUCT_STAT_ST_FLAGS 283 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 284 #else 285 #define MTREE_MAXFLAGS 1 286 #endif 287 #define MTREE_MAXS 16 288 289 static int 290 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 291 u_long *pflags) 292 { 293 FTSENT *p; 294 gid_t sgid; 295 uid_t suid; 296 mode_t smode; 297 u_long sflags = 0; 298 const char *name; 299 gid_t savegid; 300 uid_t saveuid; 301 mode_t savemode; 302 u_long saveflags; 303 u_short maxgid, maxuid, maxmode, maxflags; 304 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 305 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 306 static int first = 1; 307 308 savegid = *pgid; 309 saveuid = *puid; 310 savemode = *pmode; 311 saveflags = *pflags; 312 if ((p = fts_children(t, 0)) == NULL) { 313 if (errno) 314 mtree_err("%s: %s", RP(parent), strerror(errno)); 315 return (1); 316 } 317 318 memset(g, 0, sizeof(g)); 319 memset(u, 0, sizeof(u)); 320 memset(m, 0, sizeof(m)); 321 memset(f, 0, sizeof(f)); 322 323 maxuid = maxgid = maxmode = maxflags = 0; 324 for (; p; p = p->fts_link) { 325 smode = p->fts_statp->st_mode & MBITS; 326 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 327 savemode = smode; 328 maxmode = m[smode]; 329 } 330 sgid = p->fts_statp->st_gid; 331 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 332 savegid = sgid; 333 maxgid = g[sgid]; 334 } 335 suid = p->fts_statp->st_uid; 336 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 337 saveuid = suid; 338 maxuid = u[suid]; 339 } 340 341 #if HAVE_STRUCT_STAT_ST_FLAGS 342 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 343 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 344 saveflags = p->fts_statp->st_flags; 345 maxflags = f[sflags]; 346 } 347 #endif 348 } 349 /* 350 * If the /set record is the same as the last one we do not need to 351 * output a new one. So first we check to see if anything changed. 352 * Note that we always output a /set record for the first directory. 353 */ 354 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 355 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 356 ((keys & F_MODE) && (*pmode != savemode)) || 357 ((keys & F_FLAGS) && (*pflags != saveflags)) || 358 first) { 359 first = 0; 360 printf("/set type=file"); 361 if (keys & (F_UID | F_UNAME)) { 362 if (keys & F_UNAME && 363 (name = user_from_uid(saveuid, 1)) != NULL) 364 printf(" uname=%s", name); 365 else /* if (keys & F_UID) */ 366 printf(" uid=%lu", (u_long)saveuid); 367 } 368 if (keys & (F_GID | F_GNAME)) { 369 if (keys & F_GNAME && 370 (name = group_from_gid(savegid, 1)) != NULL) 371 printf(" gname=%s", name); 372 else /* if (keys & F_UID) */ 373 printf(" gid=%lu", (u_long)savegid); 374 } 375 if (keys & F_MODE) 376 printf(" mode=%#lo", (u_long)savemode); 377 if (keys & F_NLINK) 378 printf(" nlink=1"); 379 if (keys & F_FLAGS) { 380 char *str = flags_to_string(saveflags, "none"); 381 printf(" flags=%s", str); 382 free(str); 383 } 384 printf("\n"); 385 *puid = saveuid; 386 *pgid = savegid; 387 *pmode = savemode; 388 *pflags = saveflags; 389 } 390 return (0); 391 } 392 393 /* 394 * dcmp -- 395 * used as a comparison function passed to fts_open() to control 396 * the order in which fts_read() returns results. We make 397 * directories sort after non-directories, but otherwise sort in 398 * strcmp() order. 399 * 400 * Keep this in sync with nodecmp() in spec.c. 401 */ 402 static int 403 dcmp(const FTSENT *const *a, const FTSENT *const *b) 404 { 405 406 if (S_ISDIR((*a)->fts_statp->st_mode)) { 407 if (!S_ISDIR((*b)->fts_statp->st_mode)) 408 return (1); 409 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 410 return (-1); 411 return (strcmp((*a)->fts_name, (*b)->fts_name)); 412 } 413 414 void 415 output(int *offset, const char *fmt, ...) 416 { 417 va_list ap; 418 char buf[1024]; 419 420 va_start(ap, fmt); 421 vsnprintf(buf, sizeof(buf), fmt, ap); 422 va_end(ap); 423 424 if (*offset + strlen(buf) > MAXLINELEN - 3) { 425 printf(" \\\n%*s", INDENTNAMELEN, ""); 426 *offset = INDENTNAMELEN; 427 } 428 *offset += printf(" %s", buf) + 1; 429 } 430
Indexes created Tue Sep 23 23:09:58 GMT 2025