GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/mtree/create.c Lines: 4 193 2.1 %
Date: 2017-11-13 Branches: 2 186 1.1 %

Line Branch Exec Source
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/*	$NetBSD: create.c,v 1.11 1996/09/05 09:24:19 mycroft Exp $	*/
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/*	$OpenBSD: create.c,v 1.32 2016/08/16 16:41:46 krw Exp $	*/
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/*-
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 * Copyright (c) 1989, 1993
6
 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#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>
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#include <unistd.h>
42
#include <limits.h>
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#include <stdio.h>
44
#include <stdarg.h>
45
#include <vis.h>
46
#include <md5.h>
47
#include <rmd160.h>
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#include <sha1.h>
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#include <sha2.h>
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#include "mtree.h"
51
#include "extern.h"
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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 *, ...)
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		    __attribute__((__format__ (printf, 3, 4)));
68
static int	statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *);
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static void	statf(int, FTSENT *);
70
71
void
72
cwalk(void)
73
{
74
	FTS *t;
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	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",
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	    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
	struct group *gr;
131
	struct passwd *pw;
132
	u_int32_t len, val;
133
	int fd, offset;
134
	char *name, *escaped_name;
135
	size_t esc_len;
136
137
	esc_len = p->fts_namelen * 4 + 1;
138
	escaped_name = malloc(esc_len);
139
	if (escaped_name == NULL)
140
		error("statf: %s", strerror(errno));
141
	strnvis(escaped_name, p->fts_name, esc_len,
142
	    VIS_WHITE | VIS_OCTAL | VIS_GLOB);
143
144
	if (iflag || S_ISDIR(p->fts_statp->st_mode))
145
		offset = printf("%*s%s", indent, "", escaped_name);
146
	else
147
		offset = printf("%*s    %s", indent, "", escaped_name);
148
149
	free(escaped_name);
150
151
	if (offset > (INDENTNAMELEN + indent))
152
		offset = MAXLINELEN;
153
	else
154
		offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
155
156
	if (!S_ISREG(p->fts_statp->st_mode) && !dflag)
157
		output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode));
158
	if (p->fts_statp->st_uid != uid) {
159
		if (keys & F_UNAME) {
160
			if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) {
161
				output(indent, &offset, "uname=%s", pw->pw_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
			if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) {
173
				output(indent, &offset, "gname=%s", gr->gr_name);
174
			} else {
175
				error("could not get gname for gid=%u",
176
				    p->fts_statp->st_gid);
177
			}
178
		}
179
		if (keys & F_GID)
180
			output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
181
	}
182
	if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
183
		output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS);
184
	if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
185
		output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
186
	if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode))
187
		output(indent, &offset, "size=%lld",
188
		    (long long)p->fts_statp->st_size);
189
	if (keys & F_TIME)
190
		output(indent, &offset, "time=%lld.%ld",
191
		    (long long)p->fts_statp->st_mtimespec.tv_sec,
192
		    p->fts_statp->st_mtimespec.tv_nsec);
193
	if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
194
		if ((fd = open(p->fts_accpath, MTREE_O_FLAGS, 0)) < 0 ||
195
		    crc(fd, &val, &len))
196
			error("%s: %s", p->fts_accpath, strerror(errno));
197
		(void)close(fd);
198
		output(indent, &offset, "cksum=%u", val);
199
	}
200
	if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
201
		char *md5digest, buf[MD5_DIGEST_STRING_LENGTH];
202
203
		md5digest = MD5File(p->fts_accpath,buf);
204
		if (!md5digest)
205
			error("%s: %s", p->fts_accpath, strerror(errno));
206
		else
207
			output(indent, &offset, "md5digest=%s", md5digest);
208
	}
209
	if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
210
		char *rmd160digest, buf[RMD160_DIGEST_STRING_LENGTH];
211
212
		rmd160digest = RMD160File(p->fts_accpath,buf);
213
		if (!rmd160digest)
214
			error("%s: %s", p->fts_accpath, strerror(errno));
215
		else
216
			output(indent, &offset, "rmd160digest=%s", rmd160digest);
217
	}
218
	if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
219
		char *sha1digest, buf[SHA1_DIGEST_STRING_LENGTH];
220
221
		sha1digest = SHA1File(p->fts_accpath,buf);
222
		if (!sha1digest)
223
			error("%s: %s", p->fts_accpath, strerror(errno));
224
		else
225
			output(indent, &offset, "sha1digest=%s", sha1digest);
226
	}
227
	if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
228
		char *sha256digest, buf[SHA256_DIGEST_STRING_LENGTH];
229
230
		sha256digest = SHA256File(p->fts_accpath,buf);
231
		if (!sha256digest)
232
			error("%s: %s", p->fts_accpath, strerror(errno));
233
		else
234
			output(indent, &offset, "sha256digest=%s", sha256digest);
235
	}
236
	if (keys & F_SLINK &&
237
	    (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) {
238
		name = rlink(p->fts_accpath);
239
		esc_len = strlen(name) * 4 + 1;
240
		escaped_name = malloc(esc_len);
241
		if (escaped_name == NULL)
242
			error("statf: %s", strerror(errno));
243
		strnvis(escaped_name, name, esc_len, VIS_WHITE | VIS_OCTAL);
244
		output(indent, &offset, "link=%s", escaped_name);
245
		free(escaped_name);
246
	}
247
	if (keys & F_FLAGS && !S_ISLNK(p->fts_statp->st_mode)) {
248
		char *file_flags;
249
250
		file_flags = fflagstostr(p->fts_statp->st_flags);
251
		if (file_flags == NULL)
252
			error("%s", strerror(errno));
253
		if (*file_flags != '\0')
254
			output(indent, &offset, "flags=%s", file_flags);
255
		else
256
			output(indent, &offset, "flags=none");
257
		free(file_flags);
258
	}
259
	(void)putchar('\n');
260
}
261
262
#define	MAXGID	5000
263
#define	MAXUID	5000
264
#define	MAXMODE	MBITS + 1
265
266
static int
267
statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode)
268
{
269
	FTSENT *p;
270
	gid_t sgid;
271
	uid_t suid;
272
	mode_t smode;
273
	struct group *gr;
274
	struct passwd *pw;
275
	gid_t savegid = *pgid;
276
	uid_t saveuid = *puid;
277
	mode_t savemode = *pmode;
278
	int maxgid;
279
	int maxuid;
280
	u_short maxmode;
281
	gid_t g[MAXGID];
282
	uid_t u[MAXUID];
283
	mode_t m[MAXMODE];
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 ((pw = getpwuid(saveuid)) != NULL)
331
				(void)printf(" uname=%s", pw->pw_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 ((gr = getgrgid(savegid)) != NULL)
339
				(void)printf(" gname=%s", gr->gr_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
8
	if (S_ISDIR((*a)->fts_statp->st_mode)) {
361
		if (!S_ISDIR((*b)->fts_statp->st_mode))
362
			return (1);
363
4
	} else if (S_ISDIR((*b)->fts_statp->st_mode))
364
		return (-1);
365
4
	return (strcmp((*a)->fts_name, (*b)->fts_name));
366
4
}
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
}