1 /* $NetBSD: create.c,v 1.79 2024/12/05 17:17:43 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 1.79 2024/12/05 17:17:43 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 static void output(FILE *, int, int *, const char *, ...)
88 __printflike(4, 5);
89 static int statd(FILE *, FTS *, FTSENT *, uid_t *, gid_t *, mode_t *,
90 u_long *);
91 static void statf(FILE *, int, FTSENT *);
92
93 void
cwalk(FILE * fp)94 cwalk(FILE *fp)
95 {
96 FTS *t;
97 FTSENT *p;
98 time_t clocktime;
99 char host[MAXHOSTNAMELEN + 1];
100 const char *user;
101 char *argv[2];
102 char dot[] = ".";
103 int indent = 0;
104
105 argv[0] = dot;
106 argv[1] = NULL;
107
108 time(&clocktime);
109 gethostname(host, sizeof(host));
110 host[sizeof(host) - 1] = '\0';
111 if ((user = getlogin()) == NULL) {
112 struct passwd *pw;
113 user = (pw = getpwuid(getuid())) != NULL ? pw->pw_name :
114 "<unknown>";
115 }
116
117 if (!nflag)
118 fprintf(fp,
119 "#\t user: %s\n#\tmachine: %s\n#\t tree: %s\n"
120 "#\t date: %s",
121 user, host, fullpath, ctime(&clocktime));
122
123 if ((t = fts_open(argv, ftsoptions, dcmp)) == NULL)
124 mtree_err("fts_open: %s", strerror(errno));
125 while ((p = fts_read(t)) != NULL) {
126 if (jflag)
127 indent = p->fts_level * 4;
128 if (check_excludes(p->fts_name, p->fts_path)) {
129 fts_set(t, p, FTS_SKIP);
130 continue;
131 }
132 if (!find_only(p->fts_path)) {
133 fts_set(t, p, FTS_SKIP);
134 continue;
135 }
136 switch(p->fts_info) {
137 case FTS_D:
138 if (!bflag)
139 fprintf(fp, "\n");
140 if (!nflag)
141 fprintf(fp, "# %s\n", p->fts_path);
142 statd(fp, t, p, &uid, &gid, &mode, &flags);
143 statf(fp, indent, p);
144 break;
145 case FTS_DP:
146 if (p->fts_level > 0)
147 if (!nflag)
148 fprintf(fp, "%*s# %s\n", indent, "",
149 p->fts_path);
150 if (p->fts_level > 0 || flavor == F_FREEBSD9) {
151 fprintf(fp, "%*s..\n", indent, "");
152 if (!bflag)
153 fprintf(fp, "\n");
154 }
155 break;
156 case FTS_DNR:
157 case FTS_ERR:
158 case FTS_NS:
159 mtree_err("%s: %s",
160 p->fts_path, strerror(p->fts_errno));
161 break;
162 default:
163 if (!dflag)
164 statf(fp, indent, p);
165 break;
166
167 }
168 }
169 if (errno != 0)
170 mtree_err("fts_read: %s", strerror(errno));
171 fts_close(t);
172 if (sflag && keys & F_CKSUM)
173 mtree_err("%s checksum: %u", fullpath, crc_total);
174 }
175
176 static void
dosum(FILE * fp,int indent,FTSENT * p,int * offset,int flag,char * (* func)(const char *,char *),const char * key)177 dosum(FILE *fp, int indent, FTSENT *p, int *offset, int flag,
178 char * (*func)(const char *, char *), const char *key)
179 {
180 char *digestbuf;
181
182 if ((keys & flag) == 0)
183 return;
184
185 digestbuf = (*func)(p->fts_accpath, NULL);
186 if (digestbuf != NULL) {
187 output(fp, indent, offset, "%s=%s", key, digestbuf);
188 free(digestbuf);
189 return;
190 }
191
192 if (qflag) {
193 warn("%s: %s failed", p->fts_path, key);
194 return;
195 }
196
197 mtree_err("%s: %s failed: %s", p->fts_path, key, strerror(errno));
198 }
199
200 static char *
crcFile(const char * fname,char * dummy __unused)201 crcFile(const char *fname, char *dummy __unused)
202 {
203 char *ptr;
204 uint32_t val, len;
205 int fd, e;
206
207 if ((fd = open(fname, O_RDONLY)) == -1)
208 goto out;
209
210 e = crc(fd, &val, &len);
211 close(fd);
212 if (e)
213 goto out;
214
215 if (asprintf(&ptr, "%u", val) < 0)
216 goto out;
217
218 return ptr;
219 out:
220 mtree_err("%s: %s", fname, strerror(errno));
221 return NULL;
222 }
223
224 static void
statf(FILE * fp,int indent,FTSENT * p)225 statf(FILE *fp, int indent, FTSENT *p)
226 {
227 int offset;
228 const char *name = NULL;
229
230 offset = fprintf(fp, "%*s%s%s", indent, "",
231 S_ISDIR(p->fts_statp->st_mode) ? "" : " ", vispath(p->fts_name));
232
233 if (offset > (INDENTNAMELEN + indent))
234 offset = MAXLINELEN;
235 else
236 offset += fprintf(fp, "%*s",
237 (INDENTNAMELEN + indent) - offset, "");
238
239 if (!S_ISREG(p->fts_statp->st_mode) && (flavor == F_NETBSD6 || !dflag))
240 output(fp, indent, &offset, "type=%s",
241 inotype(p->fts_statp->st_mode));
242 if (keys & (F_UID | F_UNAME) && p->fts_statp->st_uid != uid) {
243 if (keys & F_UNAME &&
244 (name = user_from_uid(p->fts_statp->st_uid, 1)) != NULL)
245 output(fp, indent, &offset, "uname=%s", name);
246 if (keys & F_UID || (keys & F_UNAME && name == NULL))
247 output(fp, indent, &offset, "uid=%u",
248 p->fts_statp->st_uid);
249 }
250 if (keys & (F_GID | F_GNAME) && p->fts_statp->st_gid != gid) {
251 if (keys & F_GNAME &&
252 (name = group_from_gid(p->fts_statp->st_gid, 1)) != NULL)
253 output(fp, indent, &offset, "gname=%s", name);
254 if (keys & F_GID || (keys & F_GNAME && name == NULL))
255 output(fp, indent, &offset, "gid=%u",
256 p->fts_statp->st_gid);
257 }
258 if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
259 output(fp, indent, &offset, "mode=%#o",
260 p->fts_statp->st_mode & MBITS);
261 if (keys & F_DEV &&
262 (S_ISBLK(p->fts_statp->st_mode) || S_ISCHR(p->fts_statp->st_mode)))
263 output(fp, indent, &offset, "device=%#jx",
264 (uintmax_t)p->fts_statp->st_rdev);
265 if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
266 output(fp, indent, &offset, "nlink=%ju",
267 (uintmax_t)p->fts_statp->st_nlink);
268 if (keys & F_SIZE &&
269 (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode)))
270 output(fp, indent, &offset, "size=%ju",
271 (uintmax_t)p->fts_statp->st_size);
272 if (keys & F_TIME)
273 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
274 output(fp, indent, &offset, "time=%jd.%09ld",
275 (intmax_t)p->fts_statp->st_mtimespec.tv_sec,
276 p->fts_statp->st_mtimespec.tv_nsec);
277 #else
278 output(fp, indent, &offset, "time=%jd.%09ld",
279 (intmax_t)p->fts_statp->st_mtime, (long)0);
280 #endif
281 if (S_ISREG(p->fts_statp->st_mode)) {
282 dosum(fp, indent, p, &offset, F_CKSUM, crcFile, "cksum");
283 #ifndef NO_MD5
284 dosum(fp, indent, p, &offset, F_MD5, MD5File, MD5KEY);
285 #endif /* ! NO_MD5 */
286 #ifndef NO_RMD160
287 dosum(fp, indent, p, &offset, F_RMD160, RMD160File, RMD160KEY);
288 #endif /* ! NO_RMD160 */
289 #ifndef NO_SHA1
290 dosum(fp, indent, p, &offset, F_SHA1, SHA1File, SHA1KEY);
291 #endif /* ! NO_SHA1 */
292 #ifndef NO_SHA2
293 dosum(fp, indent, p, &offset, F_SHA256, SHA256_File, SHA256KEY);
294 #ifdef SHA384_BLOCK_LENGTH
295 dosum(fp, indent, p, &offset, F_SHA384, SHA384_File, SHA384KEY);
296 #endif
297 dosum(fp, indent, p, &offset, F_SHA512, SHA512_File, SHA512KEY);
298 #endif /* ! NO_SHA2 */
299 }
300 if (keys & F_SLINK &&
301 (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
302 output(fp, indent, &offset, "link=%s",
303 vispath(rlink(p->fts_accpath)));
304 #if HAVE_STRUCT_STAT_ST_FLAGS
305 if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
306 char *str = flags_to_string(p->fts_statp->st_flags, "none");
307 output(fp, indent, &offset, "flags=%s", str);
308 free(str);
309 }
310 #endif
311 putchar('\n');
312 }
313
314 /* XXX
315 * FLAGS2INDEX will fail once the user and system settable bits need more
316 * than one byte, respectively.
317 */
318 #define FLAGS2INDEX(x) (((x >> 8) & 0x0000ff00) | (x & 0x000000ff))
319
320 #define MTREE_MAXGID 5000
321 #define MTREE_MAXUID 5000
322 #define MTREE_MAXMODE (MBITS + 1)
323 #if HAVE_STRUCT_STAT_ST_FLAGS
324 #define MTREE_MAXFLAGS (FLAGS2INDEX(CH_MASK) + 1) /* 1808 */
325 #else
326 #define MTREE_MAXFLAGS 1
327 #endif
328 #define MTREE_MAXS 16
329
330 static int
statd(FILE * fp,FTS * t,FTSENT * parent,uid_t * puid,gid_t * pgid,mode_t * pmode,u_long * pflags)331 statd(FILE *fp, FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode,
332 u_long *pflags)
333 {
334 FTSENT *p;
335 gid_t sgid;
336 uid_t suid;
337 mode_t smode;
338 u_long sflags = 0;
339 const char *name = NULL;
340 gid_t savegid;
341 uid_t saveuid;
342 mode_t savemode;
343 u_long saveflags;
344 u_short maxgid, maxuid, maxmode, maxflags;
345 u_short g[MTREE_MAXGID], u[MTREE_MAXUID],
346 m[MTREE_MAXMODE], f[MTREE_MAXFLAGS];
347 static int first = 1;
348
349 savegid = *pgid;
350 saveuid = *puid;
351 savemode = *pmode;
352 saveflags = *pflags;
353 if ((p = fts_children(t, 0)) == NULL) {
354 if (errno)
355 mtree_err("%s: %s", RP(parent), strerror(errno));
356 return (1);
357 }
358
359 memset(g, 0, sizeof(g));
360 memset(u, 0, sizeof(u));
361 memset(m, 0, sizeof(m));
362 memset(f, 0, sizeof(f));
363
364 maxuid = maxgid = maxmode = maxflags = 0;
365 for (; p; p = p->fts_link) {
366 if (flavor == F_NETBSD6 || !dflag ||
367 (dflag && S_ISDIR(p->fts_statp->st_mode))) {
368 smode = p->fts_statp->st_mode & MBITS;
369 if (smode < MTREE_MAXMODE && ++m[smode] > maxmode) {
370 savemode = smode;
371 maxmode = m[smode];
372 }
373 sgid = p->fts_statp->st_gid;
374 if (sgid < MTREE_MAXGID && ++g[sgid] > maxgid) {
375 savegid = sgid;
376 maxgid = g[sgid];
377 }
378 suid = p->fts_statp->st_uid;
379 if (suid < MTREE_MAXUID && ++u[suid] > maxuid) {
380 saveuid = suid;
381 maxuid = u[suid];
382 }
383
384 #if HAVE_STRUCT_STAT_ST_FLAGS
385 sflags = FLAGS2INDEX(p->fts_statp->st_flags);
386 if (sflags < MTREE_MAXFLAGS && ++f[sflags] > maxflags) {
387 saveflags = p->fts_statp->st_flags;
388 maxflags = f[sflags];
389 }
390 #endif
391 }
392 }
393 /*
394 * If the /set record is the same as the last one we do not need to
395 * output a new one. So first we check to see if anything changed.
396 * Note that we always output a /set record for the first directory.
397 */
398 if (((keys & (F_UNAME | F_UID)) && (*puid != saveuid)) ||
399 ((keys & (F_GNAME | F_GID)) && (*pgid != savegid)) ||
400 ((keys & F_MODE) && (*pmode != savemode)) ||
401 ((keys & F_FLAGS) && (*pflags != saveflags)) ||
402 first) {
403 first = 0;
404 if (flavor != F_NETBSD6 && dflag)
405 fprintf(fp, "/set type=dir");
406 else
407 fprintf(fp, "/set type=file");
408 if (keys & (F_UID | F_UNAME)) {
409 if (keys & F_UNAME &&
410 (name = user_from_uid(saveuid, 1)) != NULL)
411 fprintf(fp, " uname=%s", name);
412 if (keys & F_UID || (keys & F_UNAME && name == NULL))
413 fprintf(fp, " uid=%lu", (u_long)saveuid);
414 }
415 if (keys & (F_GID | F_GNAME)) {
416 if (keys & F_GNAME &&
417 (name = group_from_gid(savegid, 1)) != NULL)
418 fprintf(fp, " gname=%s", name);
419 if (keys & F_GID || (keys & F_GNAME && name == NULL))
420 fprintf(fp, " gid=%lu", (u_long)savegid);
421 }
422 if (keys & F_MODE)
423 fprintf(fp, " mode=%#lo", (u_long)savemode);
424 if (keys & F_NLINK)
425 fprintf(fp, " nlink=1");
426 if (keys & F_FLAGS) {
427 char *str = flags_to_string(saveflags, "none");
428 fprintf(fp, " flags=%s", str);
429 free(str);
430 }
431 fprintf(fp, "\n");
432 *puid = saveuid;
433 *pgid = savegid;
434 *pmode = savemode;
435 *pflags = saveflags;
436 }
437 return (0);
438 }
439
440 void
output(FILE * fp,int indent,int * offset,const char * fmt,...)441 output(FILE *fp, int indent, int *offset, const char *fmt, ...)
442 {
443 va_list ap;
444 char buf[1024];
445
446 va_start(ap, fmt);
447 vsnprintf(buf, sizeof(buf), fmt, ap);
448 va_end(ap);
449
450 if (*offset + strlen(buf) > MAXLINELEN - 3) {
451 fprintf(fp, " \\\n%*s", INDENTNAMELEN + indent, "");
452 *offset = INDENTNAMELEN + indent;
453 }
454 *offset += fprintf(fp, " %s", buf) + 1;
455 }
456