create.c revision 1.55
1 /* $NetBSD: create.c,v 1.55 2007/12/05 16:55:29 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 1.55 2007/12/05 16:55:29 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 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=%#x", p->fts_statp->st_rdev); 193 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 194 output(&indent, "nlink=%u", p->fts_statp->st_nlink); 195 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 196 output(&indent, "size=%lld", (long long)p->fts_statp->st_size); 197 if (keys & F_TIME) 198 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H) 199 output(&indent, "time=%ld.%ld", 200 (long)p->fts_statp->st_mtimespec.tv_sec, 201 p->fts_statp->st_mtimespec.tv_nsec); 202 #else 203 output(&indent, "time=%ld.%ld", 204 (long)p->fts_statp->st_mtime, (long)0); 205 #endif 206 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 207 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 208 crc(fd, &val, &len)) 209 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 210 close(fd); 211 output(&indent, "cksum=%lu", (long)val); 212 } 213 #ifndef NO_MD5 214 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 215 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL) 216 mtree_err("%s: %s", p->fts_accpath, "MD5File"); 217 output(&indent, "md5=%s", digestbuf); 218 free(digestbuf); 219 } 220 #endif /* ! NO_MD5 */ 221 #ifndef NO_RMD160 222 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 223 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL) 224 mtree_err("%s: %s", p->fts_accpath, "RMD160File"); 225 output(&indent, "rmd160=%s", digestbuf); 226 free(digestbuf); 227 } 228 #endif /* ! NO_RMD160 */ 229 #ifndef NO_SHA1 230 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 231 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL) 232 mtree_err("%s: %s", p->fts_accpath, "SHA1File"); 233 output(&indent, "sha1=%s", digestbuf); 234 free(digestbuf); 235 } 236 #endif /* ! NO_SHA1 */ 237 #ifndef NO_SHA2 238 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 239 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL) 240 mtree_err("%s: %s", p->fts_accpath, "SHA256_File"); 241 output(&indent, "sha256=%s", digestbuf); 242 free(digestbuf); 243 } 244 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) { 245 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL) 246 mtree_err("%s: %s", p->fts_accpath, "SHA384_File"); 247 output(&indent, "sha384=%s", digestbuf); 248 free(digestbuf); 249 } 250 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) { 251 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL) 252 mtree_err("%s: %s", p->fts_accpath, "SHA512_File"); 253 output(&indent, "sha512=%s", digestbuf); 254 free(digestbuf); 255 } 256 #endif /* ! NO_SHA2 */ 257 if (keys & F_SLINK && 258 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 259 output(&indent, "link=%s", vispath(rlink(p->fts_accpath))); 260 #if HAVE_STRUCT_STAT_ST_FLAGS 261 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) 262 output(&indent, "flags=%s", 263 flags_to_string(p->fts_statp->st_flags, "none")); 264 #endif 265 putchar('\n'); 266 } 267 268 /* XXX 269 * FLAGS2INDEX will fail once the user and system settable bits need more 270 * than one byte, respectively. 271 */ 272 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 273 274 #define MTREE_MAXGID 5000 275 #define MTREE_MAXUID 5000 276 #define MTREE_MAXMODE (MBITS + 1) 277 #if HAVE_STRUCT_STAT_ST_FLAGS 278 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 279 #else 280 #define MTREE_MAXFLAGS 1 281 #endif 282 #define MTREE_MAXS 16 283 284 static int 285 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 286 u_long *pflags) 287 { 288 FTSENT *p; 289 gid_t sgid; 290 uid_t suid; 291 mode_t smode; 292 u_long sflags = 0; 293 const char *name; 294 gid_t savegid; 295 uid_t saveuid; 296 mode_t savemode; 297 u_long saveflags; 298 u_short maxgid, maxuid, maxmode, maxflags; 299 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 300 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 301 static int first = 1; 302 303 savegid = *pgid; 304 saveuid = *puid; 305 savemode = *pmode; 306 saveflags = *pflags; 307 if ((p = fts_children(t, 0)) == NULL) { 308 if (errno) 309 mtree_err("%s: %s", RP(parent), strerror(errno)); 310 return (1); 311 } 312 313 memset(g, 0, sizeof(g)); 314 memset(u, 0, sizeof(u)); 315 memset(m, 0, sizeof(m)); 316 memset(f, 0, sizeof(f)); 317 318 maxuid = maxgid = maxmode = maxflags = 0; 319 for (; p; p = p->fts_link) { 320 smode = p->fts_statp->st_mode & MBITS; 321 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 322 savemode = smode; 323 maxmode = m[smode]; 324 } 325 sgid = p->fts_statp->st_gid; 326 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 327 savegid = sgid; 328 maxgid = g[sgid]; 329 } 330 suid = p->fts_statp->st_uid; 331 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 332 saveuid = suid; 333 maxuid = u[suid]; 334 } 335 336 #if HAVE_STRUCT_STAT_ST_FLAGS 337 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 338 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 339 saveflags = p->fts_statp->st_flags; 340 maxflags = f[sflags]; 341 } 342 #endif 343 } 344 /* 345 * If the /set record is the same as the last one we do not need to 346 * output a new one. So first we check to see if anything changed. 347 * Note that we always output a /set record for the first directory. 348 */ 349 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 350 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 351 ((keys & F_MODE) && (*pmode != savemode)) || 352 ((keys & F_FLAGS) && (*pflags != saveflags)) || 353 first) { 354 first = 0; 355 printf("/set type=file"); 356 if (keys & (F_UID | F_UNAME)) { 357 if (keys & F_UNAME && 358 (name = user_from_uid(saveuid, 1)) != NULL) 359 printf(" uname=%s", name); 360 else /* if (keys & F_UID) */ 361 printf(" uid=%lu", (u_long)saveuid); 362 } 363 if (keys & (F_GID | F_GNAME)) { 364 if (keys & F_GNAME && 365 (name = group_from_gid(savegid, 1)) != NULL) 366 printf(" gname=%s", name); 367 else /* if (keys & F_UID) */ 368 printf(" gid=%lu", (u_long)savegid); 369 } 370 if (keys & F_MODE) 371 printf(" mode=%#lo", (u_long)savemode); 372 if (keys & F_NLINK) 373 printf(" nlink=1"); 374 if (keys & F_FLAGS) 375 printf(" flags=%s", 376 flags_to_string(saveflags, "none")); 377 printf("\n"); 378 *puid = saveuid; 379 *pgid = savegid; 380 *pmode = savemode; 381 *pflags = saveflags; 382 } 383 return (0); 384 } 385 386 static int 387 dcmp(const FTSENT **a, const FTSENT **b) 388 { 389 390 if (S_ISDIR((*a)->fts_statp->st_mode)) { 391 if (!S_ISDIR((*b)->fts_statp->st_mode)) 392 return (1); 393 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 394 return (-1); 395 return (strcmp((*a)->fts_name, (*b)->fts_name)); 396 } 397 398 void 399 output(int *offset, const char *fmt, ...) 400 { 401 va_list ap; 402 char buf[1024]; 403 404 va_start(ap, fmt); 405 vsnprintf(buf, sizeof(buf), fmt, ap); 406 va_end(ap); 407 408 if (*offset + strlen(buf) > MAXLINELEN - 3) { 409 printf(" \\\n%*s", INDENTNAMELEN, ""); 410 *offset = INDENTNAMELEN; 411 } 412 *offset += printf(" %s", buf) + 1; 413 } 414
Indexes created Mon Sep 22 21:09:42 GMT 2025