1 /* $NetBSD: create.c,v 1.11 1996/09/05 09:24:19 mycroft Exp $ */ 2 /* $OpenBSD: create.c,v 1.20 2003/06/02 23:36:54 millert Exp $ */ 3 4 /*- 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 #if 0 35 static const char sccsid[] = "@(#)create.c 8.1 (Berkeley) 6/6/93"; 36 #else 37 static const char rcsid[] = "$OpenBSD: create.c,v 1.20 2003/06/02 23:36:54 millert Exp $"; 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/stat.h> 43 #include <time.h> 44 #include <fcntl.h> 45 #include <fts.h> 46 #include <dirent.h> 47 #include <grp.h> 48 #include <pwd.h> 49 #include <errno.h> 50 #include <unistd.h> 51 #include <stdio.h> 52 #include <stdarg.h> 53 #include <vis.h> 54 #include <md5.h> 55 #include <sha1.h> 56 #include <rmd160.h> 57 #include "mtree.h" 58 #include "extern.h" 59 60 #define INDENTNAMELEN 15 61 #define MAXLINELEN 80 62 63 extern u_int32_t crc_total; 64 extern int ftsoptions; 65 extern int dflag, iflag, nflag, sflag; 66 extern u_int keys; 67 extern char fullpath[MAXPATHLEN]; 68 69 static gid_t gid; 70 static uid_t uid; 71 static mode_t mode; 72 73 static int dsort(const FTSENT **, const FTSENT **); 74 static void output(int, int *, const char *, ...); 75 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *); 76 static void statf(int, FTSENT *); 77 78 void 79 cwalk() 80 { 81 FTS *t; 82 FTSENT *p; 83 time_t clock; 84 char *argv[2], host[MAXHOSTNAMELEN]; 85 int indent = 0; 86 87 (void)time(&clock); 88 (void)gethostname(host, sizeof(host)); 89 (void)printf( 90 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 91 getlogin(), host, fullpath, ctime(&clock)); 92 93 argv[0] = "."; 94 argv[1] = NULL; 95 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 96 error("fts_open: %s", strerror(errno)); 97 while ((p = fts_read(t))) { 98 if (iflag) 99 indent = p->fts_level * 4; 100 switch(p->fts_info) { 101 case FTS_D: 102 if (!dflag) 103 (void)printf("\n"); 104 if (!nflag) 105 (void)printf("# %s\n", p->fts_path); 106 statd(t, p, &uid, &gid, &mode); 107 statf(indent, p); 108 break; 109 case FTS_DP: 110 if (!nflag && (p->fts_level > 0)) 111 (void)printf("%*s# %s\n", indent, "", p->fts_path); 112 (void)printf("%*s..\n", indent, ""); 113 if (!dflag) 114 (void)printf("\n"); 115 break; 116 case FTS_DNR: 117 case FTS_ERR: 118 case FTS_NS: 119 (void)fprintf(stderr, "mtree: %s: %s\n", 120 p->fts_path, strerror(p->fts_errno)); 121 break; 122 default: 123 if (!dflag) 124 statf(indent, p); 125 break; 126 127 } 128 } 129 (void)fts_close(t); 130 if (sflag && keys & F_CKSUM) 131 (void)fprintf(stderr, 132 "mtree: %s checksum: %u\n", fullpath, crc_total); 133 } 134 135 static void 136 statf(indent, p) 137 int indent; 138 FTSENT *p; 139 { 140 struct group *gr; 141 struct passwd *pw; 142 u_int32_t len, val; 143 int fd, offset; 144 char *name, *escaped_name; 145 size_t esc_len; 146 147 esc_len = p->fts_namelen * 4 + 1; 148 escaped_name = malloc(esc_len); 149 if (escaped_name == NULL) 150 error("statf: %s", strerror(errno)); 151 strnvis(escaped_name, p->fts_name, esc_len, VIS_WHITE | VIS_OCTAL); 152 153 if (iflag || S_ISDIR(p->fts_statp->st_mode)) 154 offset = printf("%*s%s", indent, "", escaped_name); 155 else 156 offset = printf("%*s %s", indent, "", escaped_name); 157 158 free(escaped_name); 159 160 if (offset > (INDENTNAMELEN + indent)) 161 offset = MAXLINELEN; 162 else 163 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 164 165 if (!S_ISREG(p->fts_statp->st_mode) && !dflag) 166 output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode)); 167 if (p->fts_statp->st_uid != uid) { 168 if (keys & F_UNAME) { 169 if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) { 170 output(indent, &offset, "uname=%s", pw->pw_name); 171 } else { 172 error("could not get uname for uid=%u", 173 p->fts_statp->st_uid); 174 } 175 } 176 if (keys & F_UID) 177 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 178 } 179 if (p->fts_statp->st_gid != gid) { 180 if (keys & F_GNAME) { 181 if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) { 182 output(indent, &offset, "gname=%s", gr->gr_name); 183 } else { 184 error("could not get gname for gid=%u", 185 p->fts_statp->st_gid); 186 } 187 } 188 if (keys & F_GID) 189 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 190 } 191 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 192 output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS); 193 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 194 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 195 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 196 output(indent, &offset, "size=%qd", p->fts_statp->st_size); 197 if (keys & F_TIME) 198 output(indent, &offset, "time=%ld.%ld", 199 p->fts_statp->st_mtimespec.tv_sec, 200 p->fts_statp->st_mtimespec.tv_nsec); 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 error("%s: %s", p->fts_accpath, strerror(errno)); 205 (void)close(fd); 206 output(indent, &offset, "cksum=%lu", val); 207 } 208 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 209 char *md5digest, buf[33]; 210 211 md5digest = MD5File(p->fts_accpath,buf); 212 if (!md5digest) 213 error("%s: %s", p->fts_accpath, strerror(errno)); 214 else 215 output(indent, &offset, "md5digest=%s", md5digest); 216 } 217 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 218 char *rmd160digest, buf[41]; 219 220 rmd160digest = RMD160File(p->fts_accpath,buf); 221 if (!rmd160digest) 222 error("%s: %s", p->fts_accpath, strerror(errno)); 223 else 224 output(indent, &offset, "rmd160digest=%s", rmd160digest); 225 } 226 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 227 char *sha1digest, buf[41]; 228 229 sha1digest = SHA1File(p->fts_accpath,buf); 230 if (!sha1digest) 231 error("%s: %s", p->fts_accpath, strerror(errno)); 232 else 233 output(indent, &offset, "sha1digest=%s", sha1digest); 234 } 235 if (keys & F_SLINK && 236 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) { 237 name = rlink(p->fts_accpath); 238 esc_len = strlen(name) * 4 + 1; 239 escaped_name = malloc(esc_len); 240 if (escaped_name == NULL) 241 error("statf: %s", strerror(errno)); 242 strnvis(escaped_name, name, esc_len, VIS_WHITE | VIS_OCTAL); 243 output(indent, &offset, "link=%s", escaped_name); 244 free(escaped_name); 245 } 246 if (keys & F_FLAGS && !S_ISLNK(p->fts_statp->st_mode)) { 247 char *file_flags; 248 249 file_flags = fflagstostr(p->fts_statp->st_flags); 250 if (file_flags == NULL) 251 error("%s", strerror(errno)); 252 if (*file_flags != '\0') 253 output(indent, &offset, "flags=%s", file_flags); 254 else 255 output(indent, &offset, "flags=none"); 256 free(file_flags); 257 } 258 (void)putchar('\n'); 259 } 260 261 #define MAXGID 5000 262 #define MAXUID 5000 263 #define MAXMODE MBITS + 1 264 265 static int 266 statd(t, parent, puid, pgid, pmode) 267 FTS *t; 268 FTSENT *parent; 269 uid_t *puid; 270 gid_t *pgid; 271 mode_t *pmode; 272 { 273 FTSENT *p; 274 gid_t sgid; 275 uid_t suid; 276 mode_t smode; 277 struct group *gr; 278 struct passwd *pw; 279 gid_t savegid = *pgid; 280 uid_t saveuid = *puid; 281 mode_t savemode = *pmode; 282 int maxgid; 283 int maxuid; 284 u_short maxmode; 285 gid_t g[MAXGID]; 286 uid_t u[MAXUID]; 287 mode_t m[MAXMODE]; 288 static int first = 1; 289 290 if ((p = fts_children(t, 0)) == NULL) { 291 if (errno) 292 error("%s: %s", RP(parent), strerror(errno)); 293 return (1); 294 } 295 296 bzero(g, sizeof(g)); 297 bzero(u, sizeof(u)); 298 bzero(m, sizeof(m)); 299 300 maxuid = maxgid = maxmode = 0; 301 for (; p; p = p->fts_link) { 302 if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) { 303 smode = p->fts_statp->st_mode & MBITS; 304 if (smode < MAXMODE && ++m[smode] > maxmode) { 305 savemode = smode; 306 maxmode = m[smode]; 307 } 308 sgid = p->fts_statp->st_gid; 309 if (sgid < MAXGID && ++g[sgid] > maxgid) { 310 savegid = sgid; 311 maxgid = g[sgid]; 312 } 313 suid = p->fts_statp->st_uid; 314 if (suid < MAXUID && ++u[suid] > maxuid) { 315 saveuid = suid; 316 maxuid = u[suid]; 317 } 318 } 319 } 320 /* 321 * If the /set record is the same as the last one we do not need to output 322 * a new one. So first we check to see if anything changed. Note that we 323 * always output a /set record for the first directory. 324 */ 325 if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) || 326 (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) || 327 ((keys & F_MODE) && (*pmode != savemode)) || (first)) { 328 first = 0; 329 if (dflag) 330 (void)printf("/set type=dir"); 331 else 332 (void)printf("/set type=file"); 333 if (keys & F_UNAME) { 334 if ((pw = getpwuid(saveuid)) != NULL) 335 (void)printf(" uname=%s", pw->pw_name); 336 else 337 error("could not get uname for uid=%u", saveuid); 338 } 339 if (keys & F_UID) 340 (void)printf(" uid=%u", saveuid); 341 if (keys & F_GNAME) { 342 if ((gr = getgrgid(savegid)) != NULL) 343 (void)printf(" gname=%s", gr->gr_name); 344 else 345 error("could not get gname for gid=%u", savegid); 346 } 347 if (keys & F_GID) 348 (void)printf(" gid=%u", savegid); 349 if (keys & F_MODE) 350 (void)printf(" mode=%#o", savemode); 351 if (keys & F_NLINK) 352 (void)printf(" nlink=1"); 353 (void)printf("\n"); 354 *puid = saveuid; 355 *pgid = savegid; 356 *pmode = savemode; 357 } 358 return (0); 359 } 360 361 static int 362 dsort(a, b) 363 const FTSENT **a, **b; 364 { 365 if (S_ISDIR((*a)->fts_statp->st_mode)) { 366 if (!S_ISDIR((*b)->fts_statp->st_mode)) 367 return (1); 368 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 369 return (-1); 370 return (strcmp((*a)->fts_name, (*b)->fts_name)); 371 } 372 373 void 374 output(int indent, int *offset, const char *fmt, ...) 375 { 376 va_list ap; 377 char buf[1024]; 378 379 va_start(ap, fmt); 380 (void)vsnprintf(buf, sizeof(buf), fmt, ap); 381 va_end(ap); 382 383 if (*offset + strlen(buf) > MAXLINELEN - 3) { 384 (void)printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 385 *offset = INDENTNAMELEN + indent; 386 } 387 *offset += printf(" %s", buf) + 1; 388 } 389