1 /* $NetBSD: create.c,v 1.11 1996/09/05 09:24:19 mycroft Exp $ */ 2 /* $OpenBSD: create.c,v 1.34 2019/06/28 13:32:49 deraadt 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 #include <sys/stat.h> 34 #include <time.h> 35 #include <fcntl.h> 36 #include <fts.h> 37 #include <dirent.h> 38 #include <grp.h> 39 #include <pwd.h> 40 #include <errno.h> 41 #include <unistd.h> 42 #include <limits.h> 43 #include <stdio.h> 44 #include <stdarg.h> 45 #include <vis.h> 46 #include <md5.h> 47 #include <rmd160.h> 48 #include <sha1.h> 49 #include <sha2.h> 50 #include "mtree.h" 51 #include "extern.h" 52 53 #define INDENTNAMELEN 15 54 #define MAXLINELEN 80 55 56 extern u_int32_t crc_total; 57 extern int ftsoptions; 58 extern int dflag, iflag, nflag, sflag; 59 extern u_int keys; 60 extern char fullpath[PATH_MAX]; 61 62 static gid_t gid; 63 static uid_t uid; 64 static mode_t mode; 65 66 static void output(int, int *, const char *, ...) 67 __attribute__((__format__ (printf, 3, 4))); 68 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *); 69 static void statf(int, FTSENT *); 70 71 void 72 cwalk(void) 73 { 74 FTS *t; 75 FTSENT *p; 76 time_t clock; 77 char *argv[2], host[HOST_NAME_MAX+1]; 78 int indent = 0; 79 80 (void)time(&clock); 81 (void)gethostname(host, sizeof(host)); 82 (void)printf( 83 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n#\t date: %s", 84 getlogin(), host, fullpath, ctime(&clock)); 85 86 argv[0] = "."; 87 argv[1] = NULL; 88 if ((t = fts_open(argv, ftsoptions, dsort)) == NULL) 89 error("fts_open: %s", strerror(errno)); 90 while ((p = fts_read(t))) { 91 if (iflag) 92 indent = p->fts_level * 4; 93 switch(p->fts_info) { 94 case FTS_D: 95 if (!dflag) 96 (void)printf("\n"); 97 if (!nflag) 98 (void)printf("# %s\n", p->fts_path); 99 statd(t, p, &uid, &gid, &mode); 100 statf(indent, p); 101 break; 102 case FTS_DP: 103 if (!nflag && (p->fts_level > 0)) 104 (void)printf("%*s# %s\n", indent, "", p->fts_path); 105 (void)printf("%*s..\n", indent, ""); 106 if (!dflag) 107 (void)printf("\n"); 108 break; 109 case FTS_DNR: 110 case FTS_ERR: 111 case FTS_NS: 112 (void)fprintf(stderr, "mtree: %s: %s\n", 113 p->fts_path, strerror(p->fts_errno)); 114 break; 115 default: 116 if (!dflag) 117 statf(indent, p); 118 break; 119 } 120 } 121 (void)fts_close(t); 122 if (sflag && keys & F_CKSUM) 123 (void)fprintf(stderr, 124 "mtree: %s checksum: %u\n", fullpath, crc_total); 125 } 126 127 static void 128 statf(int indent, FTSENT *p) 129 { 130 u_int32_t len, val; 131 int fd, offset; 132 const char *name; 133 char *escaped_name; 134 size_t esc_len; 135 136 esc_len = p->fts_namelen * 4 + 1; 137 escaped_name = malloc(esc_len); 138 if (escaped_name == NULL) 139 error("statf: %s", strerror(errno)); 140 strnvis(escaped_name, p->fts_name, esc_len, 141 VIS_WHITE | VIS_OCTAL | VIS_GLOB); 142 143 if (iflag || S_ISDIR(p->fts_statp->st_mode)) 144 offset = printf("%*s%s", indent, "", escaped_name); 145 else 146 offset = printf("%*s %s", indent, "", escaped_name); 147 148 free(escaped_name); 149 150 if (offset > (INDENTNAMELEN + indent)) 151 offset = MAXLINELEN; 152 else 153 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, ""); 154 155 if (!S_ISREG(p->fts_statp->st_mode) && !dflag) 156 output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode)); 157 if (p->fts_statp->st_uid != uid) { 158 if (keys & F_UNAME) { 159 name = user_from_uid(p->fts_statp->st_uid, 1); 160 if (name != NULL) { 161 output(indent, &offset, "uname=%s", name); 162 } else { 163 error("could not get uname for uid=%u", 164 p->fts_statp->st_uid); 165 } 166 } 167 if (keys & F_UID) 168 output(indent, &offset, "uid=%u", p->fts_statp->st_uid); 169 } 170 if (p->fts_statp->st_gid != gid) { 171 if (keys & F_GNAME) { 172 name = group_from_gid(p->fts_statp->st_gid, 1); 173 if (name != NULL) { 174 output(indent, &offset, "gname=%s", name); 175 } else { 176 error("could not get gname for gid=%u", 177 p->fts_statp->st_gid); 178 } 179 } 180 if (keys & F_GID) 181 output(indent, &offset, "gid=%u", p->fts_statp->st_gid); 182 } 183 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode) 184 output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS); 185 if (keys & F_NLINK && p->fts_statp->st_nlink != 1) 186 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink); 187 if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode)) 188 output(indent, &offset, "size=%lld", 189 (long long)p->fts_statp->st_size); 190 if (keys & F_TIME) 191 output(indent, &offset, "time=%lld.%ld", 192 (long long)p->fts_statp->st_mtimespec.tv_sec, 193 p->fts_statp->st_mtimespec.tv_nsec); 194 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) { 195 if ((fd = open(p->fts_accpath, MTREE_O_FLAGS, 0)) == -1 || 196 crc(fd, &val, &len)) 197 error("%s: %s", p->fts_accpath, strerror(errno)); 198 (void)close(fd); 199 output(indent, &offset, "cksum=%u", val); 200 } 201 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) { 202 char *md5digest, buf[MD5_DIGEST_STRING_LENGTH]; 203 204 md5digest = MD5File(p->fts_accpath,buf); 205 if (!md5digest) 206 error("%s: %s", p->fts_accpath, strerror(errno)); 207 else 208 output(indent, &offset, "md5digest=%s", md5digest); 209 } 210 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) { 211 char *rmd160digest, buf[RMD160_DIGEST_STRING_LENGTH]; 212 213 rmd160digest = RMD160File(p->fts_accpath,buf); 214 if (!rmd160digest) 215 error("%s: %s", p->fts_accpath, strerror(errno)); 216 else 217 output(indent, &offset, "rmd160digest=%s", rmd160digest); 218 } 219 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) { 220 char *sha1digest, buf[SHA1_DIGEST_STRING_LENGTH]; 221 222 sha1digest = SHA1File(p->fts_accpath,buf); 223 if (!sha1digest) 224 error("%s: %s", p->fts_accpath, strerror(errno)); 225 else 226 output(indent, &offset, "sha1digest=%s", sha1digest); 227 } 228 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) { 229 char *sha256digest, buf[SHA256_DIGEST_STRING_LENGTH]; 230 231 sha256digest = SHA256File(p->fts_accpath,buf); 232 if (!sha256digest) 233 error("%s: %s", p->fts_accpath, strerror(errno)); 234 else 235 output(indent, &offset, "sha256digest=%s", sha256digest); 236 } 237 if (keys & F_SLINK && 238 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) { 239 name = rlink(p->fts_accpath); 240 esc_len = strlen(name) * 4 + 1; 241 escaped_name = malloc(esc_len); 242 if (escaped_name == NULL) 243 error("statf: %s", strerror(errno)); 244 strnvis(escaped_name, name, esc_len, VIS_WHITE | VIS_OCTAL); 245 output(indent, &offset, "link=%s", escaped_name); 246 free(escaped_name); 247 } 248 if (keys & F_FLAGS && !S_ISLNK(p->fts_statp->st_mode)) { 249 char *file_flags; 250 251 file_flags = fflagstostr(p->fts_statp->st_flags); 252 if (file_flags == NULL) 253 error("%s", strerror(errno)); 254 if (*file_flags != '\0') 255 output(indent, &offset, "flags=%s", file_flags); 256 else 257 output(indent, &offset, "flags=none"); 258 free(file_flags); 259 } 260 (void)putchar('\n'); 261 } 262 263 #define MAXGID 5000 264 #define MAXUID 5000 265 #define MAXMODE MBITS + 1 266 267 static int 268 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode) 269 { 270 FTSENT *p; 271 gid_t sgid; 272 uid_t suid; 273 mode_t smode; 274 gid_t savegid = *pgid; 275 uid_t saveuid = *puid; 276 mode_t savemode = *pmode; 277 int maxgid; 278 int maxuid; 279 u_short maxmode; 280 gid_t g[MAXGID]; 281 uid_t u[MAXUID]; 282 mode_t m[MAXMODE]; 283 const char *name; 284 static int first = 1; 285 286 if ((p = fts_children(t, 0)) == NULL) { 287 if (errno) 288 error("%s: %s", RP(parent), strerror(errno)); 289 return (1); 290 } 291 292 bzero(g, sizeof(g)); 293 bzero(u, sizeof(u)); 294 bzero(m, sizeof(m)); 295 296 maxuid = maxgid = maxmode = 0; 297 for (; p; p = p->fts_link) { 298 if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) { 299 smode = p->fts_statp->st_mode & MBITS; 300 if (smode < MAXMODE && ++m[smode] > maxmode) { 301 savemode = smode; 302 maxmode = m[smode]; 303 } 304 sgid = p->fts_statp->st_gid; 305 if (sgid < MAXGID && ++g[sgid] > maxgid) { 306 savegid = sgid; 307 maxgid = g[sgid]; 308 } 309 suid = p->fts_statp->st_uid; 310 if (suid < MAXUID && ++u[suid] > maxuid) { 311 saveuid = suid; 312 maxuid = u[suid]; 313 } 314 } 315 } 316 /* 317 * If the /set record is the same as the last one we do not need to output 318 * a new one. So first we check to see if anything changed. Note that we 319 * always output a /set record for the first directory. 320 */ 321 if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) || 322 (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) || 323 ((keys & F_MODE) && (*pmode != savemode)) || (first)) { 324 first = 0; 325 if (dflag) 326 (void)printf("/set type=dir"); 327 else 328 (void)printf("/set type=file"); 329 if (keys & F_UNAME) { 330 if ((name = user_from_uid(saveuid, 1)) != NULL) 331 (void)printf(" uname=%s", name); 332 else 333 error("could not get uname for uid=%u", saveuid); 334 } 335 if (keys & F_UID) 336 (void)printf(" uid=%u", saveuid); 337 if (keys & F_GNAME) { 338 if ((name = group_from_gid(savegid, 1)) != NULL) 339 (void)printf(" gname=%s", name); 340 else 341 error("could not get gname for gid=%u", savegid); 342 } 343 if (keys & F_GID) 344 (void)printf(" gid=%u", savegid); 345 if (keys & F_MODE) 346 (void)printf(" mode=%#o", savemode); 347 if (keys & F_NLINK) 348 (void)printf(" nlink=1"); 349 (void)printf("\n"); 350 *puid = saveuid; 351 *pgid = savegid; 352 *pmode = savemode; 353 } 354 return (0); 355 } 356 357 int 358 dsort(const FTSENT **a, const FTSENT **b) 359 { 360 if (S_ISDIR((*a)->fts_statp->st_mode)) { 361 if (!S_ISDIR((*b)->fts_statp->st_mode)) 362 return (1); 363 } else if (S_ISDIR((*b)->fts_statp->st_mode)) 364 return (-1); 365 return (strcmp((*a)->fts_name, (*b)->fts_name)); 366 } 367 368 void 369 output(int indent, int *offset, const char *fmt, ...) 370 { 371 va_list ap; 372 char buf[1024]; 373 374 va_start(ap, fmt); 375 (void)vsnprintf(buf, sizeof(buf), fmt, ap); 376 va_end(ap); 377 378 if (*offset + strlen(buf) > MAXLINELEN - 3) { 379 (void)printf(" \\\n%*s", INDENTNAMELEN + indent, ""); 380 *offset = INDENTNAMELEN + indent; 381 } 382 *offset += printf(" %s", buf) + 1; 383 } 384