create.c revision 1.36
1 /* $NetBSD: create.c,v 1.36 2001/11/07 08:01:52 lukem 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 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: create.c,v 1.36 2001/11/07 08:01:52 lukem Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #include <dirent.h> 49 #include <errno.h> 50 #include <fcntl.h> 51 #include <fts.h> 52 #include <grp.h> 53 #include <md5.h> 54 #include <pwd.h> 55 #include <rmd160.h> 56 #include <sha1.h> 57 #include <stdarg.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <time.h> 62 #include <unistd.h> 63 #include <vis.h> 64 65 #include "mtree.h" 66 #include "extern.h" 67 68 #define INDENTNAMELEN 15 69 #define MAXLINELEN 80 70 #define VISFLAGS VIS_CSTYLE 71 72 static gid_t gid; 73 static uid_t uid; 74 static mode_t mode; 75 static u_long flags; 76 static char codebuf[4*MAXPATHLEN + 1]; 77 static const char extra[] = { ' ', '\t', '\n', '\\', '#', '\0' }; 78 79 static int dsort(const FTSENT **, const FTSENT **); 80 static void output(int *, const char *, ...) 81 __attribute__((__format__(__printf__, 2, 3))); 82 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *); 83 static void statf(FTSENT *); 84 85 void 86 cwalk(void) 87 { 88 FTS *t; 89 FTSENT *p; 90 time_t clocktime; 91 char host[MAXHOSTNAMELEN + 1]; 92 char dot[] = "."; /* XXX: work around gcc warning */ 93 char *argv[] = { dot, NULL }; 94 95 time(&clocktime); 96 gethostname(host, sizeof(host)); 97 host[sizeof(host) - 1] = '\0'; 98 printf( 99 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 100 getlogin(), host, fullpath, ctime(&clocktime)); 101 102 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 103 mtree_err("fts_open: %s", strerror(errno)); 104 while ((p = fts_read(t)) != NULL) { 105 if (check_excludes(p->fts_name, p->fts_path)) { 106 fts_set(t, p, FTS_SKIP); 107 continue; 108 } 109 switch(p->fts_info) { 110 case FTS_D: 111 printf("\n# %s\n", p->fts_path); 112 statd(t, p, &uid, &gid, &mode, &flags); 113 statf(p); 114 break; 115 case FTS_DP: 116 if (p->fts_level > 0) 117 printf("# %s\n..\n\n", p->fts_path); 118 break; 119 case FTS_DNR: 120 case FTS_ERR: 121 case FTS_NS: 122 mtree_err("%s: %s", 123 p->fts_path, strerror(p->fts_errno)); 124 break; 125 default: 126 if (!dflag) 127 statf(p); 128 break; 129 130 } 131 } 132 fts_close(t); 133 if (sflag && keys & F_CKSUM) 134 mtree_err("%s checksum: %u\n", fullpath, crc_total); 135 } 136 137 static void 138 statf(FTSENT *p) 139 { 140 u_int32_t len, val; 141 int fd, indent; 142 char digestbuf[41]; /* large enough for {MD5,RMD160,SHA1}File() */ 143 const char *name; 144 145 strsvis(codebuf, p->fts_name, VISFLAGS, extra); 146 if (S_ISDIR(p->fts_statp->st_mode)) 147 indent = printf("%s", codebuf); 148 else 149 indent = printf(" %s", codebuf); 150 151 if (indent > INDENTNAMELEN) 152 indent = MAXLINELEN; 153 else 154 indent += printf("%*s", INDENTNAMELEN - indent, ""); 155 156 if (!S_ISREG(p->fts_statp->st_mode)) 157 output(&indent, "type=%s", inotype(p->fts_statp->st_mode)); 158 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) { 159 if (keys & F_UNAME && 160 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL) 161 output(&indent, "uname=%s", name); 162 else /* if (keys & F_UID) */ 163 output(&indent, "uid=%u", p->fts_statp->st_uid); 164 } 165 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) { 166 if (keys & F_GNAME && 167 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL) 168 output(&indent, "gname=%s", name); 169 else /* if (keys & F_GID) */ 170 output(&indent, "gid=%u", p->fts_statp->st_gid); 171 } 172 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 173 output(&indent, "mode=%#o", p->fts_statp->st_mode & MBITS); 174 if (keys & F_DEV && 175 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode))) 176 output(&indent, "device=%#x", p->fts_statp->st_rdev); 177 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 178 output(&indent, "nlink=%u", p->fts_statp->st_nlink); 179 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 180 output(&indent, "size=%lld", (long long)p->fts_statp->st_size); 181 #ifdef BSD4_4 182 if (keys & F_TIME) 183 output(&indent, "time=%ld.%ld", 184 (long)p->fts_statp->st_mtimespec.tv_sec, 185 p->fts_statp->st_mtimespec.tv_nsec); 186 #else 187 output(&indent, "time=%ld.%ld", 188 p->fts_statp->st_mtime, 0); 189 #endif 190 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 191 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 || 192 crc(fd, &val, &len)) 193 mtree_err("%s: %s", p->fts_accpath, strerror(errno)); 194 close(fd); 195 output(&indent, "cksum=%lu", (long)val); 196 } 197 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 198 if (MD5File(p->fts_accpath, digestbuf) == NULL) 199 mtree_err("%s: %s", p->fts_accpath, "MD5File"); 200 output(&indent, "md5=%s", digestbuf); 201 } 202 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 203 if (RMD160File(p->fts_accpath, digestbuf) == NULL) 204 mtree_err("%s: %s", p->fts_accpath, "RMD160File"); 205 output(&indent, "rmd160=%s", digestbuf); 206 } 207 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 208 if (SHA1File(p->fts_accpath, digestbuf) == NULL) 209 mtree_err("%s: %s", p->fts_accpath, "SHA1File"); 210 output(&indent, "sha1=%s", digestbuf); 211 } 212 if (keys & F_SLINK && 213 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) 214 output(&indent, "link=%s", rlink(p->fts_accpath)); 215 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) 216 output(&indent, "flags=%s", 217 flags_to_string(p->fts_statp->st_flags, "none")); 218 putchar('\n'); 219 } 220 221 /* XXX 222 * FLAGS2INDEX will fail once the user and system settable bits need more 223 * than one byte, respectively. 224 */ 225 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff)) 226 227 #define MTREE_MAXGID 5000 228 #define MTREE_MAXUID 5000 229 #define MTREE_MAXMODE (MBITS + 1) 230 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */ 231 #define MTREE_MAXS 16 232 233 static int 234 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, 235 u_long *pflags) 236 { 237 FTSENT *p; 238 gid_t sgid; 239 uid_t suid; 240 mode_t smode; 241 u_long sflags; 242 const char *name; 243 gid_t savegid; 244 uid_t saveuid; 245 mode_t savemode; 246 u_long saveflags; 247 u_short maxgid, maxuid, maxmode, maxflags; 248 u_short g[MTREE_MAXGID], u[MTREE_MAXUID], 249 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS]; 250 static int first = 1; 251 252 savegid = *pgid; 253 saveuid = *puid; 254 savemode = *pmode; 255 saveflags = *pflags; 256 if ((p = fts_children(t, 0)) == NULL) { 257 if (errno) 258 mtree_err("%s: %s", RP(parent), strerror(errno)); 259 return (1); 260 } 261 262 memset(g, 0, sizeof(g)); 263 memset(u, 0, sizeof(u)); 264 memset(m, 0, sizeof(m)); 265 memset(f, 0, sizeof(f)); 266 267 maxuid = maxgid = maxmode = maxflags = 0; 268 for (; p; p = p->fts_link) { 269 smode = p->fts_statp->st_mode & MBITS; 270 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) { 271 savemode = smode; 272 maxmode = m[smode]; 273 } 274 sgid = p->fts_statp->st_gid; 275 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) { 276 savegid = sgid; 277 maxgid = g[sgid]; 278 } 279 suid = p->fts_statp->st_uid; 280 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) { 281 saveuid = suid; 282 maxuid = u[suid]; 283 } 284 285 sflags = FLAGS2INDEX(p->fts_statp->st_flags); 286 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) { 287 saveflags = p->fts_statp->st_flags; 288 maxflags = f[sflags]; 289 } 290 } 291 /* 292 * If the /set record is the same as the last one we do not need to 293 * output a new one. So first we check to see if anything changed. 294 * Note that we always output a /set record for the first directory. 295 */ 296 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) || 297 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) || 298 ((keys & F_MODE) && (*pmode != savemode)) || 299 ((keys & F_FLAGS) && (*pflags != saveflags)) || 300 first) { 301 first = 0; 302 printf("/set type=file"); 303 if (keys & (F_UID | F_UNAME)) { 304 if (keys & F_UNAME && 305 (name = user_from_uid(saveuid, 1)) != NULL) 306 printf(" uname=%s", name); 307 else /* if (keys & F_UID) */ 308 printf(" uid=%lu", (u_long)saveuid); 309 } 310 if (keys & (F_GID | F_GNAME)) { 311 if (keys & F_GNAME && 312 (name = group_from_gid(savegid, 1)) != NULL) 313 printf(" gname=%s", name); 314 else /* if (keys & F_UID) */ 315 printf(" gid=%lu", (u_long)savegid); 316 } 317 if (keys & F_MODE) 318 printf(" mode=%#lo", (u_long)savemode); 319 if (keys & F_NLINK) 320 printf(" nlink=1"); 321 if (keys & F_FLAGS) 322 printf(" flags=%s", 323 flags_to_string(saveflags, "none")); 324 printf("\n"); 325 *puid = saveuid; 326 *pgid = savegid; 327 *pmode = savemode; 328 *pflags = saveflags; 329 } 330 return (0); 331 } 332 333 static int 334 dsort(const FTSENT **a, const FTSENT **b) 335 { 336 337 if (S_ISDIR((*a)->fts_statp->st_mode)) { 338 if (!S_ISDIR((*b)->fts_statp->st_mode)) 339 return (1); 340 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 341 return (-1); 342 return (strcmp((*a)->fts_name, (*b)->fts_name)); 343 } 344 345 void 346 output(int *offset, const char *fmt, ...) 347 { 348 va_list ap; 349 char buf[1024]; 350 351 va_start(ap, fmt); 352 vsnprintf(buf, sizeof(buf), fmt, ap); 353 va_end(ap); 354 355 if (*offset + strlen(buf) > MAXLINELEN - 3) { 356 printf(" \\\n%*s", INDENTNAMELEN, ""); 357 *offset = INDENTNAMELEN; 358 } 359 *offset += printf(" %s", buf) + 1; 360 } 361
Indexes created Wed Sep 24 05:09:52 GMT 2025