1 /* $NetBSD: create.c,v 1.68 2012/12/20 16:43:16 christos 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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #if HAVE_NBTOOL_CONFIG_H
33 #include "nbtool_config.h"
34 #endif
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 1.68 2012/12/20 16:43:16 christos Exp $");
42 #endif
43 #endif /* not lint */
44
45 #include <sys/param.h>
46 #include <sys/stat.h>
47
48 #if ! HAVE_NBTOOL_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 #ifndef NO_SHA2
73 #include <sha2.h>
74 #endif
75
76 #include "extern.h"
77
78 #define INDENTNAMELEN 15
79 #define MAXLINELEN 80
80
81 static gid_t gid;
82 static uid_t uid;
83 static mode_t mode;
84 static u_long flags;
85
86 #ifdef __FreeBSD__
87 #define FTS_CONST const
88 #else
89 #define FTS_CONST
90 #endif
91
92 static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *);
93 static void output(int, int *, const char *, ...)
94 __attribute__((__format__(__printf__, 3, 4)));
95 static int statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *);
96 static void statf(int, FTSENT *);
97
98 void
cwalk(void)99 cwalk(void)
100 {
101 FTS *t;
102 FTSENT *p;
103 time_t clocktime;
104 char host[MAXHOSTNAMELEN + 1];
105 const char *user;
106 char *argv[2];
107 char dot[] = ".";
108 int indent = 0;
109
110 argv[0] = dot;
111 argv[1] = NULL;
112
113 time(&clocktime);
114 gethostname(host, sizeof(host));
115 host[sizeof(host) - 1] = '\0';
116 if ((user = getlogin()) == NULL) {
117 struct passwd *pw;
118 user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name :
119 "<unknown>";
120 }
121
122 if (!nflag)
123 printf(
124 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n"
125 "#\t date: %s",
126 user, host, fullpath, ctime(&clocktime));
127
128 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL)
129 mtree_err("fts_open: %s", strerror(errno));
130 while ((p = fts_read(t)) != NULL) {
131 if (jflag)
132 indent = p->fts_level * 4;
133 if (check_excludes(p->fts_name, p->fts_path)) {
134 fts_set(t, p, FTS_SKIP);
135 continue;
136 }
137 switch(p->fts_info) {
138 case FTS_D:
139 if (!bflag)
140 printf("\n");
141 if (!nflag)
142 printf("# %s\n", p->fts_path);
143 statd(t, p, &uid, &gid, &mode, &flags);
144 statf(indent, p);
145 break;
146 case FTS_DP:
147 if (p->fts_level > 0)
148 if (!nflag)
149 printf("%*s# %s\n", indent, "",
150 p->fts_path);
151 if (p->fts_level > 0 || flavor == F_FREEBSD9) {
152 printf("%*s..\n", indent, "");
153 if (!bflag)
154 printf("\n");
155 }
156 break;
157 case FTS_DNR:
158 case FTS_ERR:
159 case FTS_NS:
160 mtree_err("%s: %s",
161 p->fts_path, strerror(p->fts_errno));
162 break;
163 default:
164 if (!dflag)
165 statf(indent, p);
166 break;
167
168 }
169 }
170 fts_close(t);
171 if (sflag && keys & F_CKSUM)
172 mtree_err("%s checksum: %u", fullpath, crc_total);
173 }
174
175 static void
statf(int indent,FTSENT * p)176 statf(int indent, FTSENT *p)
177 {
178 u_int32_t len, val;
179 int fd, offset;
180 const char *name = NULL;
181 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
182 char *digestbuf;
183 #endif
184
185 offset = printf("%*s%s%s", indent, "",
186 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name));
187
188 if (offset > (INDENTNAMELEN + indent))
189 offset = MAXLINELEN;
190 else
191 offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
192
193 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag))
194 output(indent, &offset, "type=%s",
195 inotype(p->fts_statp->st_mode));
196 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
197 if (keys & F_UNAME &&
198 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL)
199 output(indent, &offset, "uname=%s", name);
200 if (keys & F_UID || (keys & F_UNAME && name == NULL))
201 output(indent, &offset, "uid=%u", p->fts_statp->st_uid);
202 }
203 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
204 if (keys & F_GNAME &&
205 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL)
206 output(indent, &offset, "gname=%s", name);
207 if (keys & F_GID || (keys & F_GNAME && name == NULL))
208 output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
209 }
210 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
211 output(indent, &offset, "mode=%#o",
212 p->fts_statp->st_mode & MBITS);
213 if (keys & F_DEV &&
214 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode)))
215 output(indent, &offset, "device=%#llx",
216 (long long)p->fts_statp->st_rdev);
217 if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
218 output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
219 if (keys & F_SIZE &&
220 (flavor != F_NETBSD6 || S_ISREG(p->fts_statp->st_mode)))
221 output(indent, &offset, "size=%lld",
222 (long long)p->fts_statp->st_size);
223 if (keys & F_TIME)
224 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
225 output(indent, &offset, "time=%ld.%09ld",
226 (long)p->fts_statp->st_mtimespec.tv_sec,
227 p->fts_statp->st_mtimespec.tv_nsec);
228 #else
229 output(indent, &offset, "time=%ld.%09ld",
230 (long)p->fts_statp->st_mtime, (long)0);
231 #endif
232 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
233 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
234 crc(fd, &val, &len))
235 mtree_err("%s: %s", p->fts_accpath, strerror(errno));
236 close(fd);
237 output(indent, &offset, "cksum=%lu", (long)val);
238 }
239 #ifndef NO_MD5
240 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
241 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL)
242 mtree_err("%s: MD5File failed: %s", p->fts_accpath,
243 strerror(errno));
244 output(indent, &offset, "%s=%s", MD5KEY, digestbuf);
245 free(digestbuf);
246 }
247 #endif /* ! NO_MD5 */
248 #ifndef NO_RMD160
249 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
250 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL)
251 mtree_err("%s: RMD160File failed: %s", p->fts_accpath,
252 strerror(errno));
253 output(indent, &offset, "%s=%s", RMD160KEY, digestbuf);
254 free(digestbuf);
255 }
256 #endif /* ! NO_RMD160 */
257 #ifndef NO_SHA1
258 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
259 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL)
260 mtree_err("%s: SHA1File failed: %s", p->fts_accpath,
261 strerror(errno));
262 output(indent, &offset, "%s=%s", SHA1KEY, digestbuf);
263 free(digestbuf);
264 }
265 #endif /* ! NO_SHA1 */
266 #ifndef NO_SHA2
267 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
268 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL)
269 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath,
270 strerror(errno));
271 output(indent, &offset, "%s=%s", SHA256KEY, digestbuf);
272 free(digestbuf);
273 }
274 #ifdef SHA384_BLOCK_LENGTH
275 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) {
276 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL)
277 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath,
278 strerror(errno));
279 output(indent, &offset, "%s=%s", SHA384KEY, digestbuf);
280 free(digestbuf);
281 }
282 #endif
283 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) {
284 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL)
285 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath,
286 strerror(errno));
287 output(indent, &offset, "%s=%s", SHA512KEY, digestbuf);
288 free(digestbuf);
289 }
290 #endif /* ! NO_SHA2 */
291 if (keys & F_SLINK &&
292 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
293 output(indent, &offset, "link=%s",
294 vispath(rlink(p->fts_accpath)));
295 #if HAVE_STRUCT_STAT_ST_FLAGS
296 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
297 char *str = flags_to_string(p->fts_statp->st_flags, "none");
298 output(indent, &offset, "flags=%s", str);
299 free(str);
300 }
301 #endif
302 putchar('\n');
303 }
304
305 /* XXX
306 * FLAGS2INDEX will fail once the user and system settable bits need more
307 * than one byte, respectively.
308 */
309 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff))
310
311 #define MTREE_MAXGID 5000
312 #define MTREE_MAXUID 5000
313 #define MTREE_MAXMODE (MBITS + 1)
314 #if HAVE_STRUCT_STAT_ST_FLAGS
315 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
316 #else
317 #define MTREE_MAXFLAGS 1
318 #endif
319 #define MTREE_MAXS 16
320
321 static int
statd(FTS * t,FTSENT * parent,uid_t * puid,gid_t * pgid,mode_t * pmode,u_long * pflags)322 statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
323 u_long *pflags)
324 {
325 FTSENT *p;
326 gid_t sgid;
327 uid_t suid;
328 mode_t smode;
329 u_long sflags = 0;
330 const char *name = NULL;
331 gid_t savegid;
332 uid_t saveuid;
333 mode_t savemode;
334 u_long saveflags;
335 u_short maxgid, maxuid, maxmode, maxflags;
336 u_short g[MTREE_MAXGID], u[MTREE_MAXUID],
337 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS];
338 static int first = 1;
339
340 savegid = *pgid;
341 saveuid = *puid;
342 savemode = *pmode;
343 saveflags = *pflags;
344 if ((p = fts_children(t, 0)) == NULL) {
345 if (errno)
346 mtree_err("%s: %s", RP(parent), strerror(errno));
347 return (1);
348 }
349
350 memset(g, 0, sizeof(g));
351 memset(u, 0, sizeof(u));
352 memset(m, 0, sizeof(m));
353 memset(f, 0, sizeof(f));
354
355 maxuid = maxgid = maxmode = maxflags = 0;
356 for (; p; p = p->fts_link) {
357 if (flavor == F_NETBSD6 || !dflag ||
358 (dflag && S_ISDIR(p->fts_statp->st_mode))) {
359 smode = p->fts_statp->st_mode & MBITS;
360 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) {
361 savemode = smode;
362 maxmode = m[smode];
363 }
364 sgid = p->fts_statp->st_gid;
365 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
366 savegid = sgid;
367 maxgid = g[sgid];
368 }
369 suid = p->fts_statp->st_uid;
370 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
371 saveuid = suid;
372 maxuid = u[suid];
373 }
374
375 #if HAVE_STRUCT_STAT_ST_FLAGS
376 sflags = FLAGS2INDEX(p->fts_statp->st_flags);
377 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
378 saveflags = p->fts_statp->st_flags;
379 maxflags = f[sflags];
380 }
381 #endif
382 }
383 }
384 /*
385 * If the /set record is the same as the last one we do not need to
386 * output a new one. So first we check to see if anything changed.
387 * Note that we always output a /set record for the first directory.
388 */
389 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) ||
390 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) ||
391 ((keys & F_MODE) && (*pmode != savemode)) ||
392 ((keys & F_FLAGS) && (*pflags != saveflags)) ||
393 first) {
394 first = 0;
395 if (flavor != F_NETBSD6 && dflag)
396 printf("/set type=dir");
397 else
398 printf("/set type=file");
399 if (keys & (F_UID | F_UNAME)) {
400 if (keys & F_UNAME &&
401 (name = user_from_uid(saveuid, 1)) != NULL)
402 printf(" uname=%s", name);
403 if (keys & F_UID || (keys & F_UNAME && name == NULL))
404 printf(" uid=%lu", (u_long)saveuid);
405 }
406 if (keys & (F_GID | F_GNAME)) {
407 if (keys & F_GNAME &&
408 (name = group_from_gid(savegid, 1)) != NULL)
409 printf(" gname=%s", name);
410 if (keys & F_GID || (keys & F_GNAME && name == NULL))
411 printf(" gid=%lu", (u_long)savegid);
412 }
413 if (keys & F_MODE)
414 printf(" mode=%#lo", (u_long)savemode);
415 if (keys & F_NLINK)
416 printf(" nlink=1");
417 if (keys & F_FLAGS) {
418 char *str = flags_to_string(saveflags, "none");
419 printf(" flags=%s", str);
420 free(str);
421 }
422 printf("\n");
423 *puid = saveuid;
424 *pgid = savegid;
425 *pmode = savemode;
426 *pflags = saveflags;
427 }
428 return (0);
429 }
430
431 /*
432 * dcmp --
433 * used as a comparison function passed to fts_open() to control
434 * the order in which fts_read() returns results. We make
435 * directories sort after non-directories, but otherwise sort in
436 * strcmp() order.
437 *
438 * Keep this in sync with nodecmp() in spec.c.
439 */
440 static int
dcmp(const FTSENT * FTS_CONST * a,const FTSENT * FTS_CONST * b)441 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b)
442 {
443
444 if (S_ISDIR((*a)->fts_statp->st_mode)) {
445 if (!S_ISDIR((*b)->fts_statp->st_mode))
446 return (1);
447 } else if (S_ISDIR((*b)->fts_statp->st_mode))
448 return (-1);
449 return (strcmp((*a)->fts_name, (*b)->fts_name));
450 }
451
452 void
output(int indent,int * offset,const char * fmt,...)453 output(int indent, int *offset, const char *fmt, ...)
454 {
455 va_list ap;
456 char buf[1024];
457
458 va_start(ap, fmt);
459 vsnprintf(buf, sizeof(buf), fmt, ap);
460 va_end(ap);
461
462 if (*offset + strlen(buf) > MAXLINELEN - 3) {
463 printf(" \\\n%*s", INDENTNAMELEN + indent, "");
464 *offset = INDENTNAMELEN + indent;
465 }
466 *offset += printf(" %s", buf) + 1;
467 }
468