1/* $NetBSD: create.c,v 1.72 2013/10/17 17:22:59 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 39static char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93"; 40#else 41__RCSID("$NetBSD: create.c,v 1.72 2013/10/17 17:22:59 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 82static gid_t gid; 83static uid_t uid; 84static mode_t mode; 85static u_long flags; 86 87#ifdef __FreeBSD__ 88#define FTS_CONST const 89#else 90#define FTS_CONST 91#endif 92 93static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *); 94static void output(int, int *, const char *, ...) 95 __attribute__((__format__(__printf__, 3, 4))); 96static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *); 97static void statf(int, FTSENT *); 98 99void 100cwalk(void) 101{ 102 FTS *t; 103 FTSENT *p; 104 time_t clocktime; 105 char host[MAXHOSTNAMELEN + 1]; 106 const char *user; 107 char *argv[2]; 108 char dot[] = "."; 109 int indent = 0; 110 111 argv[0] = dot; 112 argv[1] = NULL; 113 114 time(&clocktime); 115 gethostname(host, sizeof(host)); 116 host[sizeof(host) - 1] = '\0'; 117 if ((user = getlogin()) == NULL) { 118 struct passwd *pw; 119 user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name : 120 "<unknown>"; 121 } 122 123 if (!nflag) 124 printf( 125 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n" 126 "#\t date: %s", 127 user, host, fullpath, ctime(&clocktime)); 128 129 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL) 130 mtree_err("fts_open: %s", strerror(errno)); 131 while ((p = fts_read(t)) != NULL) { 132 if (jflag) 133 indent = p->fts_level * 4; 134 if (check_excludes(p->fts_name, p->fts_path)) { 135 fts_set(t, p, FTS_SKIP); 136 continue; 137 } 138 if (!find_only(p->fts_path)) { 139 fts_set(t, p, FTS_SKIP); 140 continue; 141 } 142 switch(p->fts_info) { 143 case FTS_D: 144 if (!bflag) 145 printf("\n"); 146 if (!nflag) 147 printf("# %s\n", p->fts_path); 148 statd(t, p, &uid, &gid, &mode, &flags); 149 statf(indent, p); 150 break; 151 case FTS_DP: 152 if (p->fts_level > 0) 153 if (!nflag) 154 printf("%*s# %s\n", indent, "", 155 p->fts_path); 156 if (p->fts_level > 0 || flavor == F_FREEBSD9) { 157 printf("%*s..\n", indent, ""); 158 if (!bflag) 159 printf("\n"); 160 } 161 break; 162 case FTS_DNR: 163 case FTS_ERR: 164 case FTS_NS: 165 mtree_err("%s: %s", 166 p->fts_path, strerror(p->fts_errno)); 167 break; 168 default: 169 if (!dflag) 170 statf(indent, p); 171 break; 172 173 } 174 } 175 fts_close(t); 176 if (sflag && keys & F_CKSUM) 177 mtree_err("%s checksum: %u", fullpath, crc_total); 178} 179 180static void 181statf(int indent, FTSENT *p) 182{ 183 u_int32_t len, val; 184 int fd, offset; 185 const char *name = NULL; 186#if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 187 char *digestbuf; 188#endif 189 190 offset = printf("%*s%s%s", indent, "", 191 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 192 193 if (offset > (INDENTNAMELEN + indent)) 194 offset = MAXLINELEN; 195 else 196 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 197 198 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 199 output(indent, &offset, "type=%s", 200 inotype(p->fts_statp->st_mode)); 201 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 202 if (keys & F_UNAME && 203 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 204 output(indent, &offset, "uname=%s", name); 205 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 206 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 207 } 208 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 209 if (keys & F_GNAME && 210 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 211 output(indent, &offset, "gname=%s", name); 212 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 213 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 214 } 215 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 216 output(indent, &offset, "mode=%#o", 217 p->fts_statp->st_mode & MBITS); 218 if (keys & F_DEV && 219 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 220 output(indent, &offset, "device=%#jx", 221 (uintmax_t)p->fts_statp->st_rdev); 222 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 223 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 224 if (keys & F_SIZE && 225 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode))) 226 output(indent, &offset, "size=%ju", 227 (uintmax_t)p->fts_statp->st_size); 228 if (keys & F_TIME) 229#if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 230 output(indent, &offset, "time=%jd.%09ld", 231 (intmax_t)p->fts_statp->st_mtimespec.tv_sec, 232 p->fts_statp->st_mtimespec.tv_nsec); 233#else 234 output(indent, &offset, "time=%jd.%09ld", 235 (intmax_t)p->fts_statp->st_mtime, (long)0); 236#endif 237 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 238 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 239 crc(fd, &val, &len)) 240 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 241 close(fd); 242 output(indent, &offset, "cksum=%lu", (long)val); 243 } 244#ifndef NO_MD5 245 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 246 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 247 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 248 strerror(errno)); 249 output(indent, &offset, "%s=%s", MD5KEY, digestbuf); 250 free(digestbuf); 251 } 252#endif /* ! NO_MD5 */ 253#ifndef NO_RMD160 254 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 255 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 256 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 257 strerror(errno)); 258 output(indent, &offset, "%s=%s", RMD160KEY, digestbuf); 259 free(digestbuf); 260 } 261#endif /* ! NO_RMD160 */ 262#ifndef NO_SHA1 263 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 264 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 265 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 266 strerror(errno)); 267 output(indent, &offset, "%s=%s", SHA1KEY, digestbuf); 268 free(digestbuf); 269 } 270#endif /* ! NO_SHA1 */ 271#ifndef NO_SHA2 272 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 273 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 274 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 275 strerror(errno)); 276 output(indent, &offset, "%s=%s", SHA256KEY, digestbuf); 277 free(digestbuf); 278 } 279#ifdef SHA384_BLOCK_LENGTH 280 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 281 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 282 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 283 strerror(errno)); 284 output(indent, &offset, "%s=%s", SHA384KEY, digestbuf); 285 free(digestbuf); 286 } 287#endif 288 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 289 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 290 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 291 strerror(errno)); 292 output(indent, &offset, "%s=%s", SHA512KEY, digestbuf); 293 free(digestbuf); 294 } 295#endif /* ! NO_SHA2 */ 296 if (keys & F_SLINK && 297 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 298 output(indent, &offset, "link=%s", 299 vispath(rlink(p->fts_accpath))); 300#if HAVE_STRUCT_STAT_ST_FLAGS 301 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 302 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 303 output(indent, &offset, "flags=%s", str); 304 free(str); 305 } 306#endif 307 putchar('\n'); 308} 309 310/* XXX 311 * FLAGS2INDEX will fail once the user and system settable bits need more 312 * than one byte, respectively. 313 */ 314#define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 315 316#define MTREE_MAXGID 5000 317#define MTREE_MAXUID 5000 318#define MTREE_MAXMODE (MBITS + 1) 319#if HAVE_STRUCT_STAT_ST_FLAGS 320#define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 321#else 322#define MTREE_MAXFLAGS 1 323#endif 324#define MTREE_MAXS 16 325 326static int 327statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 328 u_long *pflags) 329{ 330 FTSENT *p; 331 gid_t sgid; 332 uid_t suid; 333 mode_t smode; 334 u_long sflags = 0; 335 const char *name = NULL; 336 gid_t savegid; 337 uid_t saveuid; 338 mode_t savemode; 339 u_long saveflags; 340 u_short maxgid, maxuid, maxmode, maxflags; 341 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 342 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 343 static int first = 1; 344 345 savegid = *pgid; 346 saveuid = *puid; 347 savemode = *pmode; 348 saveflags = *pflags; 349 if ((p = fts_children(t, 0)) == NULL) { 350 if (errno) 351 mtree_err("%s: %s", RP(parent), strerror(errno)); 352 return (1); 353 } 354 355 memset(g, 0, sizeof(g)); 356 memset(u, 0, sizeof(u)); 357 memset(m, 0, sizeof(m)); 358 memset(f, 0, sizeof(f)); 359 360 maxuid = maxgid = maxmode = maxflags = 0; 361 for (; p; p = p->fts_link) { 362 if (flavor == F_NETBSD6 || !dflag || 363 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 364 smode = p->fts_statp->st_mode & MBITS; 365 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 366 savemode = smode; 367 maxmode = m[smode]; 368 } 369 sgid = p->fts_statp->st_gid; 370 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 371 savegid = sgid; 372 maxgid = g[sgid]; 373 } 374 suid = p->fts_statp->st_uid; 375 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 376 saveuid = suid; 377 maxuid = u[suid]; 378 } 379 380#if HAVE_STRUCT_STAT_ST_FLAGS 381 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 382 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 383 saveflags = p->fts_statp->st_flags; 384 maxflags = f[sflags]; 385 } 386#endif 387 } 388 } 389 /* 390 * If the /set record is the same as the last one we do not need to 391 * output a new one. So first we check to see if anything changed. 392 * Note that we always output a /set record for the first directory. 393 */ 394 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 395 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 396 ((keys & F_MODE) && (*pmode != savemode)) || 397 ((keys & F_FLAGS) && (*pflags != saveflags)) || 398 first) { 399 first = 0; 400 if (flavor != F_NETBSD6 && dflag) 401 printf("/set type=dir"); 402 else 403 printf("/set type=file"); 404 if (keys & (F_UID | F_UNAME)) { 405 if (keys & F_UNAME && 406 (name = user_from_uid(saveuid, 1)) != NULL) 407 printf(" uname=%s", name); 408 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 409 printf(" uid=%lu", (u_long)saveuid); 410 } 411 if (keys & (F_GID | F_GNAME)) { 412 if (keys & F_GNAME && 413 (name = group_from_gid(savegid, 1)) != NULL) 414 printf(" gname=%s", name); 415 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 416 printf(" gid=%lu", (u_long)savegid); 417 } 418 if (keys & F_MODE) 419 printf(" mode=%#lo", (u_long)savemode); 420 if (keys & F_NLINK) 421 printf(" nlink=1"); 422 if (keys & F_FLAGS) { 423 char *str = flags_to_string(saveflags, "none"); 424 printf(" flags=%s", str); 425 free(str); 426 } 427 printf("\n"); 428 *puid = saveuid; 429 *pgid = savegid; 430 *pmode = savemode; 431 *pflags = saveflags; 432 } 433 return (0); 434} 435 436/* 437 * dcmp -- 438 * used as a comparison function passed to fts_open() to control 439 * the order in which fts_read() returns results. We make 440 * directories sort after non-directories, but otherwise sort in 441 * strcmp() order. 442 * 443 * Keep this in sync with nodecmp() in spec.c. 444 */ 445static int 446dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 447{ 448 449 if (S_ISDIR((*a)->fts_statp->st_mode)) { 450 if (!S_ISDIR((*b)->fts_statp->st_mode)) 451 return (1); 452 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 453 return (-1); 454 return (strcmp((*a)->fts_name, (*b)->fts_name)); 455} 456 457void 458output(int indent, int *offset, const char *fmt, ...) 459{ 460 va_list ap; 461 char buf[1024]; 462 463 va_start(ap, fmt); 464 vsnprintf(buf, sizeof(buf), fmt, ap); 465 va_end(ap); 466 467 if (*offset + strlen(buf) > MAXLINELEN - 3) { 468 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 469 *offset = INDENTNAMELEN + indent; 470 } 471 *offset += printf(" %s", buf) + 1; 472} 473