1 /* $NetBSD: create.c,v 1.41 2002/11/29 02:07:34 grant 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 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 1.41 2002/11/29 02:07:34 grant Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #if !HAVE_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 73 #include "extern.h" 74 75 #define INDENTNAMELEN 15 76 #define MAXLINELEN 80 77 #define VISFLAGS VIS_CSTYLE 78 79 static gid_t gid; 80 static uid_t uid; 81 static mode_t mode; 82 static u_long flags; 83 static char codebuf[4*MAXPATHLEN + 1]; 84 static const char extra[] = { ' ', '\t', '\n', '\\', '#', '\0' }; 85 86 static int dsort(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 char *argv[2]; 100 char dot[] = "."; 101 argv[0] = dot; 102 argv[1] = NULL; 103 104 time(&clocktime); 105 gethostname(host, sizeof(host)); 106 host[sizeof(host) - 1] = '\0'; 107 printf( 108 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 109 getlogin(), host, fullpath, ctime(&clocktime)); 110 111 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 112 mtree_err("fts_open: %s", strerror(errno)); 113 while ((p = fts_read(t)) != NULL) { 114 if (check_excludes(p->fts_name, p->fts_path)) { 115 fts_set(t, p, FTS_SKIP); 116 continue; 117 } 118 switch(p->fts_info) { 119 case FTS_D: 120 printf("\n# %s\n", p->fts_path); 121 statd(t, p, &uid, &gid, &mode, &flags); 122 statf(p); 123 break; 124 case FTS_DP: 125 if (p->fts_level > 0) 126 printf("# %s\n..\n\n", p->fts_path); 127 break; 128 case FTS_DNR: 129 case FTS_ERR: 130 case FTS_NS: 131 mtree_err("%s: %s", 132 p->fts_path, strerror(p->fts_errno)); 133 break; 134 default: 135 if (!dflag) 136 statf(p); 137 break; 138 139 } 140 } 141 fts_close(t); 142 if (sflag && keys & F_CKSUM) 143 mtree_err("%s checksum: %u", fullpath, crc_total); 144 } 145 146 static void 147 statf(FTSENT *p) 148 { 149 u_int32_t len, val; 150 int fd, indent; 151 const char *name; 152 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) 153 char digestbuf[41]; /* large enough for {MD5,RMD160,SHA1}File() */ 154 #endif 155 156 strsvis(codebuf, p->fts_name, VISFLAGS, extra); 157 if (S_ISDIR(p->fts_statp->st_mode)) 158 indent = printf("%s", codebuf); 159 else 160 indent = printf(" %s", codebuf); 161 162 if (indent > INDENTNAMELEN) 163 indent = MAXLINELEN; 164 else 165 indent += printf("%*s", INDENTNAMELEN - indent, ""); 166 167 if (!S_ISREG(p->fts_statp->st_mode)) 168 output(&indent, "type=%s", inotype(p->fts_statp->st_mode)); 169 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 170 if (keys & F_UNAME && 171 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 172 output(&indent, "uname=%s", name); 173 else /* if (keys & F_UID) */ 174 output(&indent, "uid=%u", p->fts_statp->st_uid); 175 } 176 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 177 if (keys & F_GNAME && 178 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 179 output(&indent, "gname=%s", name); 180 else /* if (keys & F_GID) */ 181 output(&indent, "gid=%u", p->fts_statp->st_gid); 182 } 183 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 184 output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS); 185 if (keys & F_DEV && 186 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 187 output(&indent, "device=%#x", p->fts_statp->st_rdev); 188 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 189 output(&indent, "nlink=%u", p->fts_statp->st_nlink); 190 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 191 output(&indent, "size=%lld", (long long)p->fts_statp->st_size); 192 #ifdef BSD4_4 193 if (keys & F_TIME) 194 output(&indent, "time=%ld.%ld", 195 (long)p->fts_statp->st_mtimespec.tv_sec, 196 p->fts_statp->st_mtimespec.tv_nsec); 197 #else 198 output(&indent, "time=%ld.%ld", 199 p->fts_statp->st_mtime, 0); 200 #endif 201 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 202 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 203 crc(fd, &val, &len)) 204 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 205 close(fd); 206 output(&indent, "cksum=%lu", (long)val); 207 } 208 #ifndef NO_MD5 209 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 210 if (MD5File(p->fts_accpath, digestbuf) == NULL) 211 mtree_err("%s: %s", p->fts_accpath, "MD5File"); 212 output(&indent, "md5=%s", digestbuf); 213 } 214 #endif /* ! NO_MD5 */ 215 #ifndef NO_RMD160 216 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 217 if (RMD160File(p->fts_accpath, digestbuf) == NULL) 218 mtree_err("%s: %s", p->fts_accpath, "RMD160File"); 219 output(&indent, "rmd160=%s", digestbuf); 220 } 221 #endif /* ! NO_RMD160 */ 222 #ifndef NO_SHA1 223 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 224 if (SHA1File(p->fts_accpath, digestbuf) == NULL) 225 mtree_err("%s: %s", p->fts_accpath, "SHA1File"); 226 output(&indent, "sha1=%s", digestbuf); 227 } 228 #endif /* ! NO_SHA1 */ 229 if (keys & F_SLINK && 230 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 231 output(&indent, "link=%s", rlink(p->fts_accpath)); 232 #if HAVE_STRUCT_STAT_ST_FLAGS 233 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) 234 output(&indent, "flags=%s", 235 flags_to_string(p->fts_statp->st_flags, "none")); 236 #endif 237 putchar('\n'); 238 } 239 240 /* XXX 241 * FLAGS2INDEX will fail once the user and system settable bits need more 242 * than one byte, respectively. 243 */ 244 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 245 246 #define MTREE_MAXGID 5000 247 #define MTREE_MAXUID 5000 248 #define MTREE_MAXMODE (MBITS + 1) 249 #if HAVE_STRUCT_STAT_ST_FLAGS 250 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 251 #else 252 #define MTREE_MAXFLAGS 1 253 #endif 254 #define MTREE_MAXS 16 255 256 static int 257 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 258 u_long *pflags) 259 { 260 FTSENT *p; 261 gid_t sgid; 262 uid_t suid; 263 mode_t smode; 264 u_long sflags = 0; 265 const char *name; 266 gid_t savegid; 267 uid_t saveuid; 268 mode_t savemode; 269 u_long saveflags; 270 u_short maxgid, maxuid, maxmode, maxflags; 271 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 272 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 273 static int first = 1; 274 275 savegid = *pgid; 276 saveuid = *puid; 277 savemode = *pmode; 278 saveflags = *pflags; 279 if ((p = fts_children(t, 0)) == NULL) { 280 if (errno) 281 mtree_err("%s: %s", RP(parent), strerror(errno)); 282 return (1); 283 } 284 285 memset(g, 0, sizeof(g)); 286 memset(u, 0, sizeof(u)); 287 memset(m, 0, sizeof(m)); 288 memset(f, 0, sizeof(f)); 289 290 maxuid = maxgid = maxmode = maxflags = 0; 291 for (; p; p = p->fts_link) { 292 smode = p->fts_statp->st_mode & MBITS; 293 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 294 savemode = smode; 295 maxmode = m[smode]; 296 } 297 sgid = p->fts_statp->st_gid; 298 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 299 savegid = sgid; 300 maxgid = g[sgid]; 301 } 302 suid = p->fts_statp->st_uid; 303 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 304 saveuid = suid; 305 maxuid = u[suid]; 306 } 307 308 #if HAVE_STRUCT_STAT_ST_FLAGS 309 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 310 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 311 saveflags = p->fts_statp->st_flags; 312 maxflags = f[sflags]; 313 } 314 #endif 315 } 316 /* 317 * If the /set record is the same as the last one we do not need to 318 * output a new one. So first we check to see if anything changed. 319 * Note that we always output a /set record for the first directory. 320 */ 321 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 322 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 323 ((keys & F_MODE) && (*pmode != savemode)) || 324 ((keys & F_FLAGS) && (*pflags != saveflags)) || 325 first) { 326 first = 0; 327 printf("/set type=file"); 328 if (keys & (F_UID | F_UNAME)) { 329 if (keys & F_UNAME && 330 (name = user_from_uid(saveuid, 1)) != NULL) 331 printf(" uname=%s", name); 332 else /* if (keys & F_UID) */ 333 printf(" uid=%lu", (u_long)saveuid); 334 } 335 if (keys & (F_GID | F_GNAME)) { 336 if (keys & F_GNAME && 337 (name = group_from_gid(savegid, 1)) != NULL) 338 printf(" gname=%s", name); 339 else /* if (keys & F_UID) */ 340 printf(" gid=%lu", (u_long)savegid); 341 } 342 if (keys & F_MODE) 343 printf(" mode=%#lo", (u_long)savemode); 344 if (keys & F_NLINK) 345 printf(" nlink=1"); 346 if (keys & F_FLAGS) 347 printf(" flags=%s", 348 flags_to_string(saveflags, "none")); 349 printf("\n"); 350 *puid = saveuid; 351 *pgid = savegid; 352 *pmode = savemode; 353 *pflags = saveflags; 354 } 355 return (0); 356 } 357 358 static int 359 dsort(const FTSENT **a, const FTSENT **b) 360 { 361 362 if (S_ISDIR((*a)->fts_statp->st_mode)) { 363 if (!S_ISDIR((*b)->fts_statp->st_mode)) 364 return (1); 365 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 366 return (-1); 367 return (strcmp((*a)->fts_name, (*b)->fts_name)); 368 } 369 370 void 371 output(int *offset, const char *fmt, ...) 372 { 373 va_list ap; 374 char buf[1024]; 375 376 va_start(ap, fmt); 377 vsnprintf(buf, sizeof(buf), fmt, ap); 378 va_end(ap); 379 380 if (*offset + strlen(buf) > MAXLINELEN - 3) { 381 printf(" \\\n%*s", INDENTNAMELEN, ""); 382 *offset = INDENTNAMELEN; 383 } 384 *offset += printf(" %s", buf) + 1; 385 } 386