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 (errno = 0, (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 if (errno != 0)
177 mtree_err("fts_read: %s", strerror(errno));
178 fts_close(t);
179 if (sflag && keys & F_CKSUM)
180 mtree_err("%s checksum: %u", fullpath, crc_total);
181 }
182
183 static void
statf(FILE * fp,int indent,FTSENT * p)184 statf(FILE *fp, int indent, FTSENT *p)
185 {
186 u_int32_t len, val;
187 int fd, offset;
188 const char *name = NULL;
189 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
190 char *digestbuf;
191 #endif
192
193 offset = fprintf(fp, "%*s%s%s", indent, "",
194 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name));
195
196 if (offset > (INDENTNAMELEN + indent))
197 offset = MAXLINELEN;
198 else
199 offset += fprintf(fp, "%*s",
200 (INDENTNAMELEN + indent) - offset, "");
201
202 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag))
203 output(fp, indent, &offset, "type=%s",
204 inotype(p->fts_statp->st_mode));
205 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
206 if (keys & F_UNAME &&
207 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL)
208 output(fp, indent, &offset, "uname=%s", name);
209 if (keys & F_UID || (keys & F_UNAME && name == NULL))
210 output(fp, indent, &offset, "uid=%u",
211 p->fts_statp->st_uid);
212 }
213 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
214 if (keys & F_GNAME &&
215 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL)
216 output(fp, indent, &offset, "gname=%s", name);
217 if (keys & F_GID || (keys & F_GNAME && name == NULL))
218 output(fp, indent, &offset, "gid=%u",
219 p->fts_statp->st_gid);
220 }
221 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
222 output(fp, indent, &offset, "mode=%#o",
223 p->fts_statp->st_mode & MBITS);
224 if (keys & F_DEV &&
225 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode)))
226 output(fp, indent, &offset, "device=%#jx",
227 (uintmax_t)p->fts_statp->st_rdev);
228 if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
229 output(fp, indent, &offset, "nlink=%ju",
230 (uintmax_t)p->fts_statp->st_nlink);
231 if (keys & F_SIZE &&
232 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode)))
233 output(fp, indent, &offset, "size=%ju",
234 (uintmax_t)p->fts_statp->st_size);
235 if (keys & F_TIME)
236 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
237 output(fp, indent, &offset, "time=%jd.%09ld",
238 (intmax_t)p->fts_statp->st_mtimespec.tv_sec,
239 p->fts_statp->st_mtimespec.tv_nsec);
240 #else
241 output(fp, indent, &offset, "time=%jd.%09ld",
242 (intmax_t)p->fts_statp->st_mtime, (long)0);
243 #endif
244 if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
245 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
246 crc(fd, &val, &len))
247 mtree_err("%s: %s", p->fts_accpath, strerror(errno));
248 close(fd);
249 output(fp, indent, &offset, "cksum=%lu", (long)val);
250 }
251 #ifndef NO_MD5
252 if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
253 if ((digestbuf = MD5File(p->fts_accpath, NULL)) == NULL)
254 mtree_err("%s: MD5File failed: %s", p->fts_accpath,
255 strerror(errno));
256 output(fp, indent, &offset, "%s=%s", MD5KEY, digestbuf);
257 free(digestbuf);
258 }
259 #endif /* ! NO_MD5 */
260 #ifndef NO_RMD160
261 if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
262 if ((digestbuf = RMD160File(p->fts_accpath, NULL)) == NULL)
263 mtree_err("%s: RMD160File failed: %s", p->fts_accpath,
264 strerror(errno));
265 output(fp, indent, &offset, "%s=%s", RMD160KEY, digestbuf);
266 free(digestbuf);
267 }
268 #endif /* ! NO_RMD160 */
269 #ifndef NO_SHA1
270 if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
271 if ((digestbuf = SHA1File(p->fts_accpath, NULL)) == NULL)
272 mtree_err("%s: SHA1File failed: %s", p->fts_accpath,
273 strerror(errno));
274 output(fp, indent, &offset, "%s=%s", SHA1KEY, digestbuf);
275 free(digestbuf);
276 }
277 #endif /* ! NO_SHA1 */
278 #ifndef NO_SHA2
279 if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
280 if ((digestbuf = SHA256_File(p->fts_accpath, NULL)) == NULL)
281 mtree_err("%s: SHA256_File failed: %s", p->fts_accpath,
282 strerror(errno));
283 output(fp, indent, &offset, "%s=%s", SHA256KEY, digestbuf);
284 free(digestbuf);
285 }
286 #ifdef SHA384_BLOCK_LENGTH
287 if (keys & F_SHA384 && S_ISREG(p->fts_statp->st_mode)) {
288 if ((digestbuf = SHA384_File(p->fts_accpath, NULL)) == NULL)
289 mtree_err("%s: SHA384_File failed: %s", p->fts_accpath,
290 strerror(errno));
291 output(fp, indent, &offset, "%s=%s", SHA384KEY, digestbuf);
292 free(digestbuf);
293 }
294 #endif
295 if (keys & F_SHA512 && S_ISREG(p->fts_statp->st_mode)) {
296 if ((digestbuf = SHA512_File(p->fts_accpath, NULL)) == NULL)
297 mtree_err("%s: SHA512_File failed: %s", p->fts_accpath,
298 strerror(errno));
299 output(fp, indent, &offset, "%s=%s", SHA512KEY, digestbuf);
300 free(digestbuf);
301 }
302 #endif /* ! NO_SHA2 */
303 if (keys & F_SLINK &&
304 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
305 output(fp, indent, &offset, "link=%s",
306 vispath(rlink(p->fts_accpath)));
307 #if HAVE_STRUCT_STAT_ST_FLAGS
308 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
309 char *str = flags_to_string(p->fts_statp->st_flags, "none");
310 output(fp, indent, &offset, "flags=%s", str);
311 free(str);
312 }
313 #endif
314 putchar('\n');
315 }
316
317 /* XXX
318 * FLAGS2INDEX will fail once the user and system settable bits need more
319 * than one byte, respectively.
320 */
321 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff))
322
323 #define MTREE_MAXGID 5000
324 #define MTREE_MAXUID 5000
325 #define MTREE_MAXMODE (MBITS + 1)
326 #if HAVE_STRUCT_STAT_ST_FLAGS
327 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
328 #else
329 #define MTREE_MAXFLAGS 1
330 #endif
331 #define MTREE_MAXS 16
332
333 static int
statd(FILE * fp,FTS * t,FTSENT * parent,uid_t * puid,gid_t * pgid,mode_t * pmode,u_long * pflags)334 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
335 u_long *pflags)
336 {
337 FTSENT *p;
338 gid_t sgid;
339 uid_t suid;
340 mode_t smode;
341 u_long sflags = 0;
342 const char *name = NULL;
343 gid_t savegid;
344 uid_t saveuid;
345 mode_t savemode;
346 u_long saveflags;
347 u_short maxgid, maxuid, maxmode, maxflags;
348 u_short g[MTREE_MAXGID], u[MTREE_MAXUID],
349 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS];
350 static int first = 1;
351
352 savegid = *pgid;
353 saveuid = *puid;
354 savemode = *pmode;
355 saveflags = *pflags;
356 if ((p = fts_children(t, 0)) == NULL) {
357 if (errno)
358 mtree_err("%s: %s", RP(parent), strerror(errno));
359 return (1);
360 }
361
362 memset(g, 0, sizeof(g));
363 memset(u, 0, sizeof(u));
364 memset(m, 0, sizeof(m));
365 memset(f, 0, sizeof(f));
366
367 maxuid = maxgid = maxmode = maxflags = 0;
368 for (; p; p = p->fts_link) {
369 if (flavor == F_NETBSD6 || !dflag ||
370 (dflag && S_ISDIR(p->fts_statp->st_mode))) {
371 smode = p->fts_statp->st_mode & MBITS;
372 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) {
373 savemode = smode;
374 maxmode = m[smode];
375 }
376 sgid = p->fts_statp->st_gid;
377 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
378 savegid = sgid;
379 maxgid = g[sgid];
380 }
381 suid = p->fts_statp->st_uid;
382 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
383 saveuid = suid;
384 maxuid = u[suid];
385 }
386
387 #if HAVE_STRUCT_STAT_ST_FLAGS
388 sflags = FLAGS2INDEX(p->fts_statp->st_flags);
389 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
390 saveflags = p->fts_statp->st_flags;
391 maxflags = f[sflags];
392 }
393 #endif
394 }
395 }
396 /*
397 * If the /set record is the same as the last one we do not need to
398 * output a new one. So first we check to see if anything changed.
399 * Note that we always output a /set record for the first directory.
400 */
401 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) ||
402 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) ||
403 ((keys & F_MODE) && (*pmode != savemode)) ||
404 ((keys & F_FLAGS) && (*pflags != saveflags)) ||
405 first) {
406 first = 0;
407 if (flavor != F_NETBSD6 && dflag)
408 fprintf(fp, "/set type=dir");
409 else
410 fprintf(fp, "/set type=file");
411 if (keys & (F_UID | F_UNAME)) {
412 if (keys & F_UNAME &&
413 (name = user_from_uid(saveuid, 1)) != NULL)
414 fprintf(fp, " uname=%s", name);
415 if (keys & F_UID || (keys & F_UNAME && name == NULL))
416 fprintf(fp, " uid=%lu", (u_long)saveuid);
417 }
418 if (keys & (F_GID | F_GNAME)) {
419 if (keys & F_GNAME &&
420 (name = group_from_gid(savegid, 1)) != NULL)
421 fprintf(fp, " gname=%s", name);
422 if (keys & F_GID || (keys & F_GNAME && name == NULL))
423 fprintf(fp, " gid=%lu", (u_long)savegid);
424 }
425 if (keys & F_MODE)
426 fprintf(fp, " mode=%#lo", (u_long)savemode);
427 if (keys & F_NLINK)
428 fprintf(fp, " nlink=1");
429 if (keys & F_FLAGS) {
430 char *str = flags_to_string(saveflags, "none");
431 fprintf(fp, " flags=%s", str);
432 free(str);
433 }
434 fprintf(fp, "\n");
435 *puid = saveuid;
436 *pgid = savegid;
437 *pmode = savemode;
438 *pflags = saveflags;
439 }
440 return (0);
441 }
442
443 /*
444 * dcmp --
445 * used as a comparison function passed to fts_open() to control
446 * the order in which fts_read() returns results. We make
447 * directories sort after non-directories, but otherwise sort in
448 * strcmp() order.
449 *
450 * Keep this in sync with nodecmp() in spec.c.
451 */
452 static int
dcmp(const FTSENT * FTS_CONST * a,const FTSENT * FTS_CONST * b)453 dcmp(const FTSENT *FTS_CONST *a, const FTSENT *FTS_CONST *b)
454 {
455
456 if (S_ISDIR((*a)->fts_statp->st_mode)) {
457 if (!S_ISDIR((*b)->fts_statp->st_mode))
458 return (1);
459 } else if (S_ISDIR((*b)->fts_statp->st_mode))
460 return (-1);
461 return (strcmp((*a)->fts_name, (*b)->fts_name));
462 }
463
464 void
output(FILE * fp,int indent,int * offset,const char * fmt,...)465 output(FILE *fp, int indent, int *offset, const char *fmt, ...)
466 {
467 va_list ap;
468 char buf[1024];
469
470 va_start(ap, fmt);
471 vsnprintf(buf, sizeof(buf), fmt, ap);
472 va_end(ap);
473
474 if (*offset + strlen(buf) > MAXLINELEN - 3) {
475 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, "");
476 *offset = INDENTNAMELEN + indent;
477 }
478 *offset += fprintf(fp, " %s", buf) + 1;
479 }
480