1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)create.c 8.1 (Berkeley) 6/6/93 30 * $FreeBSD: src/usr.sbin/mtree/create.c,v 1.18.2.3 2001/01/12 19:17:18 phk Exp $ 31 */ 32 33 #include <sys/param.h> 34 #include <sys/stat.h> 35 #include <dirent.h> 36 #include <err.h> 37 #include <errno.h> 38 #include <fcntl.h> 39 #include <fts.h> 40 #include <grp.h> 41 #ifdef MD5 42 #include <md5.h> 43 #endif 44 #ifdef SHA1 45 #include <sha.h> 46 #endif 47 #ifdef RMD160 48 #include <ripemd.h> 49 #endif 50 #include <pwd.h> 51 #include <stdio.h> 52 #include <time.h> 53 #include <unistd.h> 54 #include <stdarg.h> 55 #include <vis.h> 56 #include "mtree.h" 57 #include "extern.h" 58 59 #define INDENTNAMELEN 15 60 #define MAXLINELEN 80 61 62 static gid_t gid; 63 static uid_t uid; 64 static mode_t mode; 65 static u_long flags = 0xffffffff; 66 67 static int dsort(const FTSENT * const *, const FTSENT * const *); 68 static void output(int, int *, const char *, ...) __printflike(3, 4); 69 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, 70 u_long *); 71 static void statf(int, FTSENT *); 72 73 void 74 cwalk(void) 75 { 76 FTS *t; 77 FTSENT *p; 78 time_t clk; 79 char *argv[2], host[MAXHOSTNAMELEN], dot[] = "."; 80 int indent = 0; 81 82 time(&clk); 83 gethostname(host, sizeof(host)); 84 printf( 85 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 86 getlogin(), host, fullpath, ctime(&clk)); 87 88 argv[0] = dot; 89 argv[1] = NULL; 90 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 91 err(1, "line %d: fts_open", lineno); 92 while ((p = fts_read(t))) { 93 if (iflag) 94 indent = p->fts_level * 4; 95 if (check_excludes(p->fts_name, p->fts_path)) { 96 fts_set(t, p, FTS_SKIP); 97 continue; 98 } 99 switch(p->fts_info) { 100 case FTS_D: 101 if (!dflag) 102 printf("\n"); 103 if (!nflag) 104 printf("# %s\n", p->fts_path); 105 statd(t, p, &uid, &gid, &mode, &flags); 106 statf(indent, p); 107 break; 108 case FTS_DP: 109 if (!nflag && (p->fts_level > 0)) 110 printf("%*s# %s\n", indent, "", p->fts_path); 111 printf("%*s..\n", indent, ""); 112 if (!dflag) 113 printf("\n"); 114 break; 115 case FTS_DNR: 116 case FTS_ERR: 117 case FTS_NS: 118 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 119 break; 120 default: 121 if (!dflag) 122 statf(indent, p); 123 break; 124 125 } 126 } 127 fts_close(t); 128 if (sflag && keys & F_CKSUM) 129 warnx("%s checksum: %u", fullpath, crc_total); 130 } 131 132 static void 133 statf(int indent, FTSENT *p) 134 { 135 struct group *gr; 136 struct passwd *pw; 137 u_long len, val; 138 int fd, offset; 139 char *fflags; 140 char *escaped_name; 141 142 escaped_name = calloc(1, p->fts_namelen * 4 + 1); 143 if (escaped_name == NULL) 144 errx(1, "statf(): calloc() failed"); 145 strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL); 146 147 if (iflag || S_ISDIR(p->fts_statp->st_mode)) 148 offset = printf("%*s%s", indent, "", escaped_name); 149 else 150 offset = printf("%*s %s", indent, "", escaped_name); 151 152 free(escaped_name); 153 154 if (offset > (INDENTNAMELEN + indent)) 155 offset = MAXLINELEN; 156 else 157 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 158 159 if (!S_ISREG(p->fts_statp->st_mode) && !dflag) 160 output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode)); 161 if (p->fts_statp->st_uid != uid) { 162 if (keys & F_UNAME) { 163 if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) { 164 output(indent, &offset, "uname=%s", pw->pw_name); 165 } else { 166 errx(1, 167 "line %d: could not get uname for uid=%u", 168 lineno, p->fts_statp->st_uid); 169 } 170 } 171 if (keys & F_UID) 172 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 173 } 174 if (p->fts_statp->st_gid != gid) { 175 if (keys & F_GNAME) { 176 if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) { 177 output(indent, &offset, "gname=%s", gr->gr_name); 178 } else { 179 errx(1, 180 "line %d: could not get gname for gid=%u", 181 lineno, p->fts_statp->st_gid); 182 } 183 } 184 if (keys & F_GID) 185 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 186 } 187 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 188 output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS); 189 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 190 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 191 if (keys & F_SIZE) 192 output(indent, &offset, "size=%jd", 193 (uintmax_t)p->fts_statp->st_size); 194 if (keys & F_TIME) 195 output(indent, &offset, "time=%ld.%ld", 196 p->fts_statp->st_mtimespec.tv_sec, 197 p->fts_statp->st_mtimespec.tv_nsec); 198 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 199 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 200 crc(fd, &val, &len)) 201 err(1, "line %d: %s", lineno, p->fts_accpath); 202 close(fd); 203 output(indent, &offset, "cksum=%lu", val); 204 } 205 #ifdef MD5 206 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 207 char *digest, buf[33]; 208 209 digest = MD5File(p->fts_accpath, buf); 210 if (!digest) { 211 err(1, "line %d: %s", lineno, p->fts_accpath); 212 } else { 213 output(indent, &offset, "md5digest=%s", digest); 214 } 215 } 216 #endif /* MD5 */ 217 #ifdef SHA1 218 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 219 char *digest, buf[41]; 220 221 digest = SHA1_File(p->fts_accpath, buf); 222 if (!digest) { 223 err(1, "line %d: %s", lineno, p->fts_accpath); 224 } else { 225 output(indent, &offset, "sha1digest=%s", digest); 226 } 227 } 228 #endif /* SHA1 */ 229 #ifdef RMD160 230 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 231 char *digest, buf[41]; 232 233 digest = RIPEMD160_File(p->fts_accpath, buf); 234 if (!digest) { 235 err(1, "line %d: %s", lineno, p->fts_accpath); 236 } else { 237 output(indent, &offset, "ripemd160digest=%s", digest); 238 } 239 } 240 #endif /* RMD160 */ 241 if (keys & F_SLINK && 242 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 243 output(indent, &offset, "link=%s", rlink(p->fts_accpath)); 244 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) { 245 fflags = flags_to_string(p->fts_statp->st_flags); 246 output(indent, &offset, "flags=%s", fflags); 247 free(fflags); 248 } 249 putchar('\n'); 250 } 251 252 #define MAXGID 5000 253 #define MAXUID 5000 254 #define MAXMODE MBITS + 1 255 #define MAXFLAGS 256 256 #define MAXS 16 257 258 static int 259 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 260 u_long *pflags) 261 { 262 FTSENT *p; 263 gid_t sgid; 264 uid_t suid; 265 mode_t smode; 266 u_long sflags; 267 struct group *gr; 268 struct passwd *pw; 269 gid_t savegid = *pgid; 270 uid_t saveuid = *puid; 271 mode_t savemode = *pmode; 272 u_long saveflags = *pflags; 273 u_short maxgid, maxuid, maxmode, maxflags; 274 u_short g[MAXGID], u[MAXUID], m[MAXMODE], f[MAXFLAGS]; 275 char *fflags; 276 static int first = 1; 277 278 if ((p = fts_children(t, 0)) == NULL) { 279 if (errno) 280 err(1, "line %d: %s", lineno, RP(parent)); 281 return (1); 282 } 283 284 bzero(g, sizeof(g)); 285 bzero(u, sizeof(u)); 286 bzero(m, sizeof(m)); 287 bzero(f, sizeof(f)); 288 289 maxuid = maxgid = maxmode = maxflags = 0; 290 for (; p; p = p->fts_link) { 291 if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) { 292 smode = p->fts_statp->st_mode & MBITS; 293 if (smode < MAXMODE && ++m[smode] > maxmode) { 294 savemode = smode; 295 maxmode = m[smode]; 296 } 297 sgid = p->fts_statp->st_gid; 298 if (sgid < MAXGID && ++g[sgid] > maxgid) { 299 savegid = sgid; 300 maxgid = g[sgid]; 301 } 302 suid = p->fts_statp->st_uid; 303 if (suid < MAXUID && ++u[suid] > maxuid) { 304 saveuid = suid; 305 maxuid = u[suid]; 306 } 307 308 /* 309 * XXX 310 * note that the below will break when file flags 311 * are extended beyond the first 4 bytes of each 312 * half word of the flags 313 */ 314 #define FLAGS2IDX(f) ((f & 0xf) | ((f >> 12) & 0xf0)) 315 sflags = p->fts_statp->st_flags; 316 if (FLAGS2IDX(sflags) < MAXFLAGS && 317 ++f[FLAGS2IDX(sflags)] > maxflags) { 318 saveflags = sflags; 319 maxflags = f[FLAGS2IDX(sflags)]; 320 } 321 } 322 } 323 /* 324 * If the /set record is the same as the last one we do not need to output 325 * a new one. So first we check to see if anything changed. Note that we 326 * always output a /set record for the first directory. 327 */ 328 if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) || 329 (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) || 330 ((keys & F_MODE) && (*pmode != savemode)) || 331 ((keys & F_FLAGS) && (*pflags != saveflags)) || 332 (first)) { 333 first = 0; 334 if (dflag) 335 printf("/set type=dir"); 336 else 337 printf("/set type=file"); 338 if (keys & F_UNAME) { 339 if ((pw = getpwuid(saveuid)) != NULL) 340 printf(" uname=%s", pw->pw_name); 341 else 342 errx(1, 343 "line %d: could not get uname for uid=%u", 344 lineno, saveuid); 345 } 346 if (keys & F_UID) 347 printf(" uid=%lu", (u_long)saveuid); 348 if (keys & F_GNAME) { 349 if ((gr = getgrgid(savegid)) != NULL) 350 printf(" gname=%s", gr->gr_name); 351 else 352 errx(1, 353 "line %d: could not get gname for gid=%u", 354 lineno, savegid); 355 } 356 if (keys & F_GID) 357 printf(" gid=%lu", (u_long)savegid); 358 if (keys & F_MODE) 359 printf(" mode=%#o", savemode); 360 if (keys & F_NLINK) 361 printf(" nlink=1"); 362 if (keys & F_FLAGS) { 363 fflags = flags_to_string(saveflags); 364 printf(" flags=%s", fflags); 365 free(fflags); 366 } 367 printf("\n"); 368 *puid = saveuid; 369 *pgid = savegid; 370 *pmode = savemode; 371 *pflags = saveflags; 372 } 373 return (0); 374 } 375 376 static int 377 dsort(const FTSENT * const *a, const FTSENT * const *b) 378 { 379 380 if (S_ISDIR((*a)->fts_statp->st_mode)) { 381 if (!S_ISDIR((*b)->fts_statp->st_mode)) 382 return (1); 383 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 384 return (-1); 385 return (strcmp((*a)->fts_name, (*b)->fts_name)); 386 } 387 388 void 389 output(int indent, int *offset, const char *fmt, ...) 390 { 391 va_list ap; 392 char buf[1024]; 393 394 va_start(ap, fmt); 395 vsnprintf(buf, sizeof(buf), fmt, ap); 396 va_end(ap); 397 398 if (*offset + strlen(buf) > MAXLINELEN - 3) { 399 printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 400 *offset = INDENTNAMELEN + indent; 401 } 402 *offset += printf(" %s", buf) + 1; 403 } 404