1 /* $NetBSD: create.c,v 1.73 2014/04/24 17:22:41 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 1.73 2014/04/24 17:22:41 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 <stdint.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <time.h>
62 #include <unistd.h>
63
64 #ifndef NO_MD5
65 #include <md5.h>
66 #endif
67 #ifndef NO_RMD160
68 #include <rmd160.h>
69 #endif
70 #ifndef NO_SHA1
71 #include <sha1.h>
72 #endif
73 #ifndef NO_SHA2
74 #include <sha2.h>
75 #endif
76
77 #include "extern.h"
78
79 #define INDENTNAMELEN 15
80 #define MAXLINELEN 80
81
82 static gid_t gid;
83 static uid_t uid;
84 static mode_t mode;
85 static u_long flags;
86
87 #ifdef __FreeBSD__
88 #define FTS_CONST const
89 #else
90 #define FTS_CONST
91 #endif
92
93 static int dcmp(const FTSENT *FTS_CONST *, const FTSENT *FTS_CONST *);
94 static void output(FILE *, int, int *, const char *, ...)
95 __printflike(4, 5);
96 static int statd(FILE *, FTS *, FTSENT *, uid_t *, gid_t *, mode_t *,
97 u_long *);
98 static void statf(FILE *, int, FTSENT *);
99
100 void
cwalk(FILE * fp)101 cwalk(FILE *fp)
102 {
103 FTS *t;
104 FTSENT *p;
105 time_t clocktime;
106 char host[MAXHOSTNAMELEN + 1];
107 const char *user;
108 char *argv[2];
109 char dot[] = ".";
110 int indent = 0;
111
112 argv[0] = dot;
113 argv[1] = NULL;
114
115 time(&clocktime);
116 gethostname(host, sizeof(host));
117 host[sizeof(host) - 1] = '\0';
118 if ((user = getlogin()) == NULL) {
119 struct passwd *pw;
120 user = (pw = getpwuid(getuid())) == NULL ? pw->pw_name :
121 "<unknown>";
122 }
123
124 if (!nflag)
125 fprintf(fp,
126 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n"
127 "#\t date: %s",
128 user, host, fullpath, ctime(&clocktime));
129
130 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL)
131 mtree_err("fts_open: %s", strerror(errno));
132 while ((p = fts_read(t)) != NULL) {
133 if (jflag)
134 indent = p->fts_level * 4;
135 if (check_excludes(p->fts_name, p->fts_path)) {
136 fts_set(t, p, FTS_SKIP);
137 continue;
138 }
139 if (!find_only(p->fts_path)) {
140 fts_set(t, p, FTS_SKIP);
141 continue;
142 }
143 switch(p->fts_info) {
144 case FTS_D:
145 if (!bflag)
146 fprintf(fp, "\n");
147 if (!nflag)
148 fprintf(fp, "# %s\n", p->fts_path);
149 statd(fp, t, p, &uid, &gid, &mode, &flags);
150 statf(fp, indent, p);
151 break;
152 case FTS_DP:
153 if (p->fts_level > 0)
154 if (!nflag)
155 fprintf(fp, "%*s# %s\n", indent, "",
156 p->fts_path);
157 if (p->fts_level > 0 || flavor == F_FREEBSD9) {
158 fprintf(fp, "%*s..\n", indent, "");
159 if (!bflag)
160 fprintf(fp, "\n");
161 }
162 break;
163 case FTS_DNR:
164 case FTS_ERR:
165 case FTS_NS:
166 mtree_err("%s: %s",
167 p->fts_path, strerror(p->fts_errno));
168 break;
169 default:
170 if (!dflag)
171 statf(fp, indent, p);
172 break;
173
174 }
175 }
176 fts_close(t);
177 if (sflag && keys & F_CKSUM)
178 mtree_err("%s checksum: %u", fullpath, crc_total);
179 }
180
181 static void
statf(FILE * fp,int indent,FTSENT * p)182 statf(FILE *fp, int indent, FTSENT *p)
183 {
184 u_int32_t len, val;
185 int fd, offset;
186 const char *name = NULL;
187 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
188 char *digestbuf;
189 #endif
190
191 offset = fprintf(fp, "%*s%s%s", indent, "",
192 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name));
193
194 if (offset > (INDENTNAMELEN + indent))
195 offset = MAXLINELEN;
196 else
197 offset += fprintf(fp, "%*s",
198 (INDENTNAMELEN + indent) - offset, "");
199
200 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag))
201 output(fp, indent, &offset, "type=%s",
202 inotype(p->fts_statp->st_mode));
203 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
204 if (keys & F_UNAME &&
205 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL)
206 output(fp, indent, &offset, "uname=%s", name);
207 if (keys & F_UID || (keys & F_UNAME && name == NULL))
208 output(fp, indent, &offset, "uid=%u",
209 p->fts_statp->st_uid);
210 }
211 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
212 if (keys & F_GNAME &&
213 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL)
214 output(fp, indent, &offset, "gname=%s", name);
215 if (keys & F_GID || (keys & F_GNAME && name == NULL))
216 output(fp, indent, &offset, "gid=%u",
217 p->fts_statp->st_gid);
218 }
219 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
220 output(fp, indent, &offset, "mode=%#o",
221 p->fts_statp->st_mode & MBITS);
222 if (keys & F_DEV &&
223 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode)))
224 output(fp, indent, &offset, "device=%#jx",
225 (uintmax_t)p->fts_statp->st_rdev);
226 if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
227 output(fp, indent, &offset, "nlink=%ju",
228 (uintmax_t)p->fts_statp->st_nlink);
229 if (keys & F_SIZE &&
230 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode)))
231 output(fp, indent, &offset, "size=%ju",
232 (uintmax_t)p->fts_statp->st_size);
233 if (keys & F_TIME)
234 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
235 output(fp, indent, &offset, "time=%jd.%09ld",
236 (intmax_t)p->fts_statp->st_mtimespec.tv_sec,
237 p->fts_statp->st_mtimespec.tv_nsec);
238 #else
239 output(fp, indent, &offset, "time=%jd.%09ld",
240 (intmax_t)p->fts_statp->st_mtime, (long)0);
241 #endif
242 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
243 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
244 crc(fd, &val, &len))
245 mtree_err("%s: %s", p->fts_accpath, strerror(errno));
246 close(fd);
247 output(fp, indent, &offset, "cksum=%lu", (long)val);
248 }
249 #ifndef NO_MD5
250 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
251 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL)
252 mtree_err("%s: MD5File failed: %s", p->fts_accpath,
253 strerror(errno));
254 output(fp, indent, &offset, "%s=%s", MD5KEY, digestbuf);
255 free(digestbuf);
256 }
257 #endif /* ! NO_MD5 */
258 #ifndef NO_RMD160
259 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
260 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL)
261 mtree_err("%s: RMD160File failed: %s", p->fts_accpath,
262 strerror(errno));
263 output(fp, indent, &offset, "%s=%s", RMD160KEY, digestbuf);
264 free(digestbuf);
265 }
266 #endif /* ! NO_RMD160 */
267 #ifndef NO_SHA1
268 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
269 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL)
270 mtree_err("%s: SHA1File failed: %s", p->fts_accpath,
271 strerror(errno));
272 output(fp, indent, &offset, "%s=%s", SHA1KEY, digestbuf);
273 free(digestbuf);
274 }
275 #endif /* ! NO_SHA1 */
276 #ifndef NO_SHA2
277 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
278 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL)
279 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath,
280 strerror(errno));
281 output(fp, indent, &offset, "%s=%s", SHA256KEY, digestbuf);
282 free(digestbuf);
283 }
284 #ifdef SHA384_BLOCK_LENGTH
285 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) {
286 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL)
287 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath,
288 strerror(errno));
289 output(fp, indent, &offset, "%s=%s", SHA384KEY, digestbuf);
290 free(digestbuf);
291 }
292 #endif
293 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) {
294 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL)
295 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath,
296 strerror(errno));
297 output(fp, indent, &offset, "%s=%s", SHA512KEY, digestbuf);
298 free(digestbuf);
299 }
300 #endif /* ! NO_SHA2 */
301 if (keys & F_SLINK &&
302 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
303 output(fp, indent, &offset, "link=%s",
304 vispath(rlink(p->fts_accpath)));
305 #if HAVE_STRUCT_STAT_ST_FLAGS
306 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
307 char *str = flags_to_string(p->fts_statp->st_flags, "none");
308 output(fp, indent, &offset, "flags=%s", str);
309 free(str);
310 }
311 #endif
312 putchar('\n');
313 }
314
315 /* XXX
316 * FLAGS2INDEX will fail once the user and system settable bits need more
317 * than one byte, respectively.
318 */
319 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff))
320
321 #define MTREE_MAXGID 5000
322 #define MTREE_MAXUID 5000
323 #define MTREE_MAXMODE (MBITS + 1)
324 #if HAVE_STRUCT_STAT_ST_FLAGS
325 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
326 #else
327 #define MTREE_MAXFLAGS 1
328 #endif
329 #define MTREE_MAXS 16
330
331 static int
statd(FILE * fp,FTS * t,FTSENT * parent,uid_t * puid,gid_t * pgid,mode_t * pmode,u_long * pflags)332 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
333 u_long *pflags)
334 {
335 FTSENT *p;
336 gid_t sgid;
337 uid_t suid;
338 mode_t smode;
339 u_long sflags = 0;
340 const char *name = NULL;
341 gid_t savegid;
342 uid_t saveuid;
343 mode_t savemode;
344 u_long saveflags;
345 u_short maxgid, maxuid, maxmode, maxflags;
346 u_short g[MTREE_MAXGID], u[MTREE_MAXUID],
347 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS];
348 static int first = 1;
349
350 savegid = *pgid;
351 saveuid = *puid;
352 savemode = *pmode;
353 saveflags = *pflags;
354 if ((p = fts_children(t, 0)) == NULL) {
355 if (errno)
356 mtree_err("%s: %s", RP(parent), strerror(errno));
357 return (1);
358 }
359
360 memset(g, 0, sizeof(g));
361 memset(u, 0, sizeof(u));
362 memset(m, 0, sizeof(m));
363 memset(f, 0, sizeof(f));
364
365 maxuid = maxgid = maxmode = maxflags = 0;
366 for (; p; p = p->fts_link) {
367 if (flavor == F_NETBSD6 || !dflag ||
368 (dflag && S_ISDIR(p->fts_statp->st_mode))) {
369 smode = p->fts_statp->st_mode & MBITS;
370 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) {
371 savemode = smode;
372 maxmode = m[smode];
373 }
374 sgid = p->fts_statp->st_gid;
375 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
376 savegid = sgid;
377 maxgid = g[sgid];
378 }
379 suid = p->fts_statp->st_uid;
380 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
381 saveuid = suid;
382 maxuid = u[suid];
383 }
384
385 #if HAVE_STRUCT_STAT_ST_FLAGS
386 sflags = FLAGS2INDEX(p->fts_statp->st_flags);
387 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
388 saveflags = p->fts_statp->st_flags;
389 maxflags = f[sflags];
390 }
391 #endif
392 }
393 }
394 /*
395 * If the /set record is the same as the last one we do not need to
396 * output a new one. So first we check to see if anything changed.
397 * Note that we always output a /set record for the first directory.
398 */
399 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) ||
400 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) ||
401 ((keys & F_MODE) && (*pmode != savemode)) ||
402 ((keys & F_FLAGS) && (*pflags != saveflags)) ||
403 first) {
404 first = 0;
405 if (flavor != F_NETBSD6 && dflag)
406 fprintf(fp, "/set type=dir");
407 else
408 fprintf(fp, "/set type=file");
409 if (keys & (F_UID | F_UNAME)) {
410 if (keys & F_UNAME &&
411 (name = user_from_uid(saveuid, 1)) != NULL)
412 fprintf(fp, " uname=%s", name);
413 if (keys & F_UID || (keys & F_UNAME && name == NULL))
414 fprintf(fp, " uid=%lu", (u_long)saveuid);
415 }
416 if (keys & (F_GID | F_GNAME)) {
417 if (keys & F_GNAME &&
418 (name = group_from_gid(savegid, 1)) != NULL)
419 fprintf(fp, " gname=%s", name);
420 if (keys & F_GID || (keys & F_GNAME && name == NULL))
421 fprintf(fp, " gid=%lu", (u_long)savegid);
422 }
423 if (keys & F_MODE)
424 fprintf(fp, " mode=%#lo", (u_long)savemode);
425 if (keys & F_NLINK)
426 fprintf(fp, " nlink=1");
427 if (keys & F_FLAGS) {
428 char *str = flags_to_string(saveflags, "none");
429 fprintf(fp, " flags=%s", str);
430 free(str);
431 }
432 fprintf(fp, "\n");
433 *puid = saveuid;
434 *pgid = savegid;
435 *pmode = savemode;
436 *pflags = saveflags;
437 }
438 return (0);
439 }
440
441 /*
442 * dcmp --
443 * used as a comparison function passed to fts_open() to control
444 * the order in which fts_read() returns results. We make
445 * directories sort after non-directories, but otherwise sort in
446 * strcmp() order.
447 *
448 * Keep this in sync with nodecmp() in spec.c.
449 */
450 static int
dcmp(const FTSENT * FTS_CONST * a,const FTSENT * FTS_CONST * b)451 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b)
452 {
453
454 if (S_ISDIR((*a)->fts_statp->st_mode)) {
455 if (!S_ISDIR((*b)->fts_statp->st_mode))
456 return (1);
457 } else if (S_ISDIR((*b)->fts_statp->st_mode))
458 return (-1);
459 return (strcmp((*a)->fts_name, (*b)->fts_name));
460 }
461
462 void
output(FILE * fp,int indent,int * offset,const char * fmt,...)463 output(FILE *fp, int indent, int *offset, const char *fmt, ...)
464 {
465 va_list ap;
466 char buf[1024];
467
468 va_start(ap, fmt);
469 vsnprintf(buf, sizeof(buf), fmt, ap);
470 va_end(ap);
471
472 if (*offset + strlen(buf) > MAXLINELEN - 3) {
473 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, "");
474 *offset = INDENTNAMELEN + indent;
475 }
476 *offset += fprintf(fp, " %s", buf) + 1;
477 }
478