1 /* $NetBSD: create.c,v 1.58 2009/04/03 21:18:59 apb 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 1.58 2009/04/03 21:18:59 apb 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 FTSENT **); 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 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 246 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 247 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, strerror(errno)); 248 output(&indent, "sha384=%s", digestbuf); 249 free(digestbuf); 250 } 251 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 252 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 253 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, strerror(errno)); 254 output(&indent, "sha512=%s", digestbuf); 255 free(digestbuf); 256 } 257 #endif /* ! NO_SHA2 */ 258 if (keys & F_SLINK && 259 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 260 output(&indent, "link=%s", vispath(rlink(p->fts_accpath))); 261 #if HAVE_STRUCT_STAT_ST_FLAGS 262 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) 263 output(&indent, "flags=%s", 264 flags_to_string(p->fts_statp->st_flags, "none")); 265 #endif 266 putchar('\n'); 267 } 268 269 /* XXX 270 * FLAGS2INDEX will fail once the user and system settable bits need more 271 * than one byte, respectively. 272 */ 273 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 274 275 #define MTREE_MAXGID 5000 276 #define MTREE_MAXUID 5000 277 #define MTREE_MAXMODE (MBITS + 1) 278 #if HAVE_STRUCT_STAT_ST_FLAGS 279 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 280 #else 281 #define MTREE_MAXFLAGS 1 282 #endif 283 #define MTREE_MAXS 16 284 285 static int 286 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 287 u_long *pflags) 288 { 289 FTSENT *p; 290 gid_t sgid; 291 uid_t suid; 292 mode_t smode; 293 u_long sflags = 0; 294 const char *name; 295 gid_t savegid; 296 uid_t saveuid; 297 mode_t savemode; 298 u_long saveflags; 299 u_short maxgid, maxuid, maxmode, maxflags; 300 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 301 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 302 static int first = 1; 303 304 savegid = *pgid; 305 saveuid = *puid; 306 savemode = *pmode; 307 saveflags = *pflags; 308 if ((p = fts_children(t, 0)) == NULL) { 309 if (errno) 310 mtree_err("%s: %s", RP(parent), strerror(errno)); 311 return (1); 312 } 313 314 memset(g, 0, sizeof(g)); 315 memset(u, 0, sizeof(u)); 316 memset(m, 0, sizeof(m)); 317 memset(f, 0, sizeof(f)); 318 319 maxuid = maxgid = maxmode = maxflags = 0; 320 for (; p; p = p->fts_link) { 321 smode = p->fts_statp->st_mode & MBITS; 322 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 323 savemode = smode; 324 maxmode = m[smode]; 325 } 326 sgid = p->fts_statp->st_gid; 327 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 328 savegid = sgid; 329 maxgid = g[sgid]; 330 } 331 suid = p->fts_statp->st_uid; 332 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 333 saveuid = suid; 334 maxuid = u[suid]; 335 } 336 337 #if HAVE_STRUCT_STAT_ST_FLAGS 338 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 339 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 340 saveflags = p->fts_statp->st_flags; 341 maxflags = f[sflags]; 342 } 343 #endif 344 } 345 /* 346 * If the /set record is the same as the last one we do not need to 347 * output a new one. So first we check to see if anything changed. 348 * Note that we always output a /set record for the first directory. 349 */ 350 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 351 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 352 ((keys & F_MODE) && (*pmode != savemode)) || 353 ((keys & F_FLAGS) && (*pflags != saveflags)) || 354 first) { 355 first = 0; 356 printf("/set type=file"); 357 if (keys & (F_UID | F_UNAME)) { 358 if (keys & F_UNAME && 359 (name = user_from_uid(saveuid, 1)) != NULL) 360 printf(" uname=%s", name); 361 else /* if (keys & F_UID) */ 362 printf(" uid=%lu", (u_long)saveuid); 363 } 364 if (keys & (F_GID | F_GNAME)) { 365 if (keys & F_GNAME && 366 (name = group_from_gid(savegid, 1)) != NULL) 367 printf(" gname=%s", name); 368 else /* if (keys & F_UID) */ 369 printf(" gid=%lu", (u_long)savegid); 370 } 371 if (keys & F_MODE) 372 printf(" mode=%#lo", (u_long)savemode); 373 if (keys & F_NLINK) 374 printf(" nlink=1"); 375 if (keys & F_FLAGS) 376 printf(" flags=%s", 377 flags_to_string(saveflags, "none")); 378 printf("\n"); 379 *puid = saveuid; 380 *pgid = savegid; 381 *pmode = savemode; 382 *pflags = saveflags; 383 } 384 return (0); 385 } 386 387 /* 388 * dcmp -- 389 * used as a comparison function passed to fts_open() to control 390 * the order in which fts_read() returns results. We make 391 * directories sort after non-directories, but otherwise sort in 392 * strcmp() order. 393 * 394 * Keep this in sync with nodecmp() in spec.c. 395 */ 396 static int 397 dcmp(const FTSENT **a, const FTSENT **b) 398 { 399 400 if (S_ISDIR((*a)->fts_statp->st_mode)) { 401 if (!S_ISDIR((*b)->fts_statp->st_mode)) 402 return (1); 403 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 404 return (-1); 405 return (strcmp((*a)->fts_name, (*b)->fts_name)); 406 } 407 408 void 409 output(int *offset, const char *fmt, ...) 410 { 411 va_list ap; 412 char buf[1024]; 413 414 va_start(ap, fmt); 415 vsnprintf(buf, sizeof(buf), fmt, ap); 416 va_end(ap); 417 418 if (*offset + strlen(buf) > MAXLINELEN - 3) { 419 printf(" \\\n%*s", INDENTNAMELEN, ""); 420 *offset = INDENTNAMELEN; 421 } 422 *offset += printf(" %s", buf) + 1; 423 } 424