create.c revision 256281
1/* $NetBSD: create.c,v 1.69 2013/02/03 19:15:17 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 1.69 2013/02/03 19:15:17 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 81static gid_t gid; 82static uid_t uid; 83static mode_t mode; 84static u_long flags; 85 86#ifdef __FreeBSD__ 87#define FTS_CONST const 88#else 89#define FTS_CONST 90#endif 91 92static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *); 93static void output(int, int *, const char *, ...) 94 __attribute__((__format__(__printf__, 3, 4))); 95static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *); 96static void statf(int, FTSENT *); 97 98void 99cwalk(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 if (!find_only(p->fts_path)) { 138 fts_set(t, p, FTS_SKIP); 139 continue; 140 } 141 switch(p->fts_info) { 142 case FTS_D: 143 if (!bflag) 144 printf("\n"); 145 if (!nflag) 146 printf("# %s\n", p->fts_path); 147 statd(t, p, &uid, &gid, &mode, &flags); 148 statf(indent, p); 149 break; 150 case FTS_DP: 151 if (p->fts_level > 0) 152 if (!nflag) 153 printf("%*s# %s\n", indent, "", 154 p->fts_path); 155 if (p->fts_level > 0 || flavor == F_FREEBSD9) { 156 printf("%*s..\n", indent, ""); 157 if (!bflag) 158 printf("\n"); 159 } 160 break; 161 case FTS_DNR: 162 case FTS_ERR: 163 case FTS_NS: 164 mtree_err("%s: %s", 165 p->fts_path, strerror(p->fts_errno)); 166 break; 167 default: 168 if (!dflag) 169 statf(indent, p); 170 break; 171 172 } 173 } 174 fts_close(t); 175 if (sflag && keys & F_CKSUM) 176 mtree_err("%s checksum: %u", fullpath, crc_total); 177} 178 179static void 180statf(int indent, FTSENT *p) 181{ 182 u_int32_t len, val; 183 int fd, offset; 184 const char *name = NULL; 185#if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2) 186 char *digestbuf; 187#endif 188 189 offset = printf("%*s%s%s", indent, "", 190 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name)); 191 192 if (offset > (INDENTNAMELEN + indent)) 193 offset = MAXLINELEN; 194 else 195 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 196 197 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag)) 198 output(indent, &offset, "type=%s", 199 inotype(p->fts_statp->st_mode)); 200 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 201 if (keys & F_UNAME && 202 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 203 output(indent, &offset, "uname=%s", name); 204 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 205 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 206 } 207 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 208 if (keys & F_GNAME && 209 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 210 output(indent, &offset, "gname=%s", name); 211 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 212 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 213 } 214 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 215 output(indent, &offset, "mode=%#o", 216 p->fts_statp->st_mode & MBITS); 217 if (keys & F_DEV && 218 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 219 output(indent, &offset, "device=%#llx", 220 (long long)p->fts_statp->st_rdev); 221 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 222 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 223 if (keys & F_SIZE && 224 (flavor != F_NETBSD6 || S_ISREG(p->fts_statp->st_mode))) 225 output(indent, &offset, "size=%lld", 226 (long long)p->fts_statp->st_size); 227 if (keys & F_TIME) 228#if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 229 output(indent, &offset, "time=%ld.%09ld", 230 (long)p->fts_statp->st_mtimespec.tv_sec, 231 p->fts_statp->st_mtimespec.tv_nsec); 232#else 233 output(indent, &offset, "time=%ld.%09ld", 234 (long)p->fts_statp->st_mtime, (long)0); 235#endif 236 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 237 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 238 crc(fd, &val, &len)) 239 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 240 close(fd); 241 output(indent, &offset, "cksum=%lu", (long)val); 242 } 243#ifndef NO_MD5 244 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 245 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 246 mtree_err("%s: MD5File failed: %s", p->fts_accpath, 247 strerror(errno)); 248 output(indent, &offset, "%s=%s", MD5KEY, digestbuf); 249 free(digestbuf); 250 } 251#endif /* ! NO_MD5 */ 252#ifndef NO_RMD160 253 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 254 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 255 mtree_err("%s: RMD160File failed: %s", p->fts_accpath, 256 strerror(errno)); 257 output(indent, &offset, "%s=%s", RMD160KEY, digestbuf); 258 free(digestbuf); 259 } 260#endif /* ! NO_RMD160 */ 261#ifndef NO_SHA1 262 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 263 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 264 mtree_err("%s: SHA1File failed: %s", p->fts_accpath, 265 strerror(errno)); 266 output(indent, &offset, "%s=%s", SHA1KEY, digestbuf); 267 free(digestbuf); 268 } 269#endif /* ! NO_SHA1 */ 270#ifndef NO_SHA2 271 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 272 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 273 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath, 274 strerror(errno)); 275 output(indent, &offset, "%s=%s", SHA256KEY, digestbuf); 276 free(digestbuf); 277 } 278#ifdef SHA384_BLOCK_LENGTH 279 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 280 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 281 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath, 282 strerror(errno)); 283 output(indent, &offset, "%s=%s", SHA384KEY, digestbuf); 284 free(digestbuf); 285 } 286#endif 287 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 288 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 289 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath, 290 strerror(errno)); 291 output(indent, &offset, "%s=%s", SHA512KEY, digestbuf); 292 free(digestbuf); 293 } 294#endif /* ! NO_SHA2 */ 295 if (keys & F_SLINK && 296 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 297 output(indent, &offset, "link=%s", 298 vispath(rlink(p->fts_accpath))); 299#if HAVE_STRUCT_STAT_ST_FLAGS 300 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 301 char *str = flags_to_string(p->fts_statp->st_flags, "none"); 302 output(indent, &offset, "flags=%s", str); 303 free(str); 304 } 305#endif 306 putchar('\n'); 307} 308 309/* XXX 310 * FLAGS2INDEX will fail once the user and system settable bits need more 311 * than one byte, respectively. 312 */ 313#define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 314 315#define MTREE_MAXGID 5000 316#define MTREE_MAXUID 5000 317#define MTREE_MAXMODE (MBITS + 1) 318#if HAVE_STRUCT_STAT_ST_FLAGS 319#define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 320#else 321#define MTREE_MAXFLAGS 1 322#endif 323#define MTREE_MAXS 16 324 325static int 326statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 327 u_long *pflags) 328{ 329 FTSENT *p; 330 gid_t sgid; 331 uid_t suid; 332 mode_t smode; 333 u_long sflags = 0; 334 const char *name = NULL; 335 gid_t savegid; 336 uid_t saveuid; 337 mode_t savemode; 338 u_long saveflags; 339 u_short maxgid, maxuid, maxmode, maxflags; 340 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 341 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 342 static int first = 1; 343 344 savegid = *pgid; 345 saveuid = *puid; 346 savemode = *pmode; 347 saveflags = *pflags; 348 if ((p = fts_children(t, 0)) == NULL) { 349 if (errno) 350 mtree_err("%s: %s", RP(parent), strerror(errno)); 351 return (1); 352 } 353 354 memset(g, 0, sizeof(g)); 355 memset(u, 0, sizeof(u)); 356 memset(m, 0, sizeof(m)); 357 memset(f, 0, sizeof(f)); 358 359 maxuid = maxgid = maxmode = maxflags = 0; 360 for (; p; p = p->fts_link) { 361 if (flavor == F_NETBSD6 || !dflag || 362 (dflag && S_ISDIR(p->fts_statp->st_mode))) { 363 smode = p->fts_statp->st_mode & MBITS; 364 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 365 savemode = smode; 366 maxmode = m[smode]; 367 } 368 sgid = p->fts_statp->st_gid; 369 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 370 savegid = sgid; 371 maxgid = g[sgid]; 372 } 373 suid = p->fts_statp->st_uid; 374 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 375 saveuid = suid; 376 maxuid = u[suid]; 377 } 378 379#if HAVE_STRUCT_STAT_ST_FLAGS 380 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 381 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 382 saveflags = p->fts_statp->st_flags; 383 maxflags = f[sflags]; 384 } 385#endif 386 } 387 } 388 /* 389 * If the /set record is the same as the last one we do not need to 390 * output a new one. So first we check to see if anything changed. 391 * Note that we always output a /set record for the first directory. 392 */ 393 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 394 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 395 ((keys & F_MODE) && (*pmode != savemode)) || 396 ((keys & F_FLAGS) && (*pflags != saveflags)) || 397 first) { 398 first = 0; 399 if (flavor != F_NETBSD6 && dflag) 400 printf("/set type=dir"); 401 else 402 printf("/set type=file"); 403 if (keys & (F_UID | F_UNAME)) { 404 if (keys & F_UNAME && 405 (name = user_from_uid(saveuid, 1)) != NULL) 406 printf(" uname=%s", name); 407 if (keys & F_UID || (keys & F_UNAME && name == NULL)) 408 printf(" uid=%lu", (u_long)saveuid); 409 } 410 if (keys & (F_GID | F_GNAME)) { 411 if (keys & F_GNAME && 412 (name = group_from_gid(savegid, 1)) != NULL) 413 printf(" gname=%s", name); 414 if (keys & F_GID || (keys & F_GNAME && name == NULL)) 415 printf(" gid=%lu", (u_long)savegid); 416 } 417 if (keys & F_MODE) 418 printf(" mode=%#lo", (u_long)savemode); 419 if (keys & F_NLINK) 420 printf(" nlink=1"); 421 if (keys & F_FLAGS) { 422 char *str = flags_to_string(saveflags, "none"); 423 printf(" flags=%s", str); 424 free(str); 425 } 426 printf("\n"); 427 *puid = saveuid; 428 *pgid = savegid; 429 *pmode = savemode; 430 *pflags = saveflags; 431 } 432 return (0); 433} 434 435/* 436 * dcmp -- 437 * used as a comparison function passed to fts_open() to control 438 * the order in which fts_read() returns results. We make 439 * directories sort after non-directories, but otherwise sort in 440 * strcmp() order. 441 * 442 * Keep this in sync with nodecmp() in spec.c. 443 */ 444static int 445dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b) 446{ 447 448 if (S_ISDIR((*a)->fts_statp->st_mode)) { 449 if (!S_ISDIR((*b)->fts_statp->st_mode)) 450 return (1); 451 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 452 return (-1); 453 return (strcmp((*a)->fts_name, (*b)->fts_name)); 454} 455 456void 457output(int indent, int *offset, const char *fmt, ...) 458{ 459 va_list ap; 460 char buf[1024]; 461 462 va_start(ap, fmt); 463 vsnprintf(buf, sizeof(buf), fmt, ap); 464 va_end(ap); 465 466 if (*offset + strlen(buf) > MAXLINELEN - 3) { 467 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 468 *offset = INDENTNAMELEN + indent; 469 } 470 *offset += printf(" %s", buf) + 1; 471} 472