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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/mtree/spec.c	Lines:	77	152	50.7 %
Date:	2017-11-07	Branches:	58	133	43.6 %


/*	$NetBSD: spec.c,v 1.6 1995/03/07 21:12:12 cgd Exp $	*/
/*	$OpenBSD: spec.c,v 1.28 2016/08/16 16:41:46 krw Exp $	*/

/*-
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <vis.h>
#include "mtree.h"
#include "extern.h"

int lineno;				/* Current spec line number. */

static void	 set(char *, NODE *);
static void	 unset(char *, NODE *);

NODE *
spec(void)
{
	NODE *centry, *last;
	char *p;
	NODE ginfo, *root;
	int c_cur, c_next;
	char *buf, *tbuf = NULL;
	size_t len;

	last = root = NULL;
	bzero(&ginfo, sizeof(ginfo));
	centry = &ginfo;
	c_cur = c_next = 0;
	for (lineno = 1; (buf = fgetln(stdin, &len));
	    ++lineno, c_cur = c_next, c_next = 0) {
		/* Null-terminate the line. */
		if (buf[len - 1] == '\n') {
			buf[--len] = '\0';
		} else {
			/* EOF with no newline. */
			tbuf = malloc(len + 1);
			memcpy(tbuf, buf, len);
			tbuf[len] = '\0';
			buf = tbuf;
		}

		/* Skip leading whitespace. */
		for (p = buf; isspace((unsigned char)*p); p++)
			;

		/* If nothing but whitespace or comment char, continue. */
		if (*p == '\0' || *p == '#')
			continue;

		/* See if next line is continuation line. */
		if (buf[len - 1] == '\\') {
			c_next = 1;
			if (--len == 0)
				continue;
			buf[len] = '\0';
		}

#ifdef DEBUG
		(void)fprintf(stderr, "line %d: {%s}\n", lineno, p);
#endif
		if (c_cur) {
			set(p, centry);
			continue;
		}

		/* Grab file name, "$", "set", or "unset". */
		if ((p = strtok(p, "\n\t ")) == NULL)
			error("missing field");

		if (p[0] == '/')
			switch(p[1]) {
			case 's':
				if (strcmp(p + 1, "set"))
					break;
				set(NULL, &ginfo);
				continue;
			case 'u':
				if (strcmp(p + 1, "unset"))
					break;
				unset(NULL, &ginfo);
				continue;
			}

		if (strchr(p, '/'))
			error("slash character in file name");

		if (!strcmp(p, "..")) {
			/* Don't go up, if haven't gone down. */
			if (!root)
				goto noparent;
			if (last->type != F_DIR || last->flags & F_DONE) {
				if (last == root)
					goto noparent;
				last = last->parent;
			}
			last->flags |= F_DONE;
			continue;

noparent:		error("no parent node");
		}

		len = strlen(p) + 1;	/* NUL in struct _node */
		if ((centry = calloc(1, sizeof(NODE) + len - 1)) == NULL)
			error("%s", strerror(errno));
		*centry = ginfo;
#define	MAGIC	"?*["
		if (strpbrk(p, MAGIC))
			centry->flags |= F_MAGIC;
		if (strunvis(centry->name, p) == -1) {
			fprintf(stderr,
			    "mtree: filename (%s) encoded incorrectly\n", p);
			strlcpy(centry->name, p, len);
		}
		set(NULL, centry);

		if (!root) {
			last = root = centry;
			root->parent = root;
		} else if (last->type == F_DIR && !(last->flags & F_DONE)) {
			centry->parent = last;
			last = last->child = centry;
		} else {
			centry->parent = last->parent;
			centry->prev = last;
			last = last->next = centry;
		}
	}
	free(tbuf);
	return (root);
}

static void
set(char *t, NODE *ip)
{
	int type;
	char *kw, *val = NULL;
	struct group *gr;
	struct passwd *pw;
	void *m;
	int value;
	u_int32_t fset, fclr;
	char *ep;
	size_t len;

	for (; (kw = strtok(t, "= \t\n")); t = NULL) {
		ip->flags |= type = parsekey(kw, &value);
		if (value && (val = strtok(NULL, " \t\n")) == NULL)
			error("missing value");
		switch(type) {
		case F_CKSUM:
			ip->cksum = strtoul(val, &ep, 10);
			if (*ep)
				error("invalid checksum %s", val);
			break;
		case F_MD5:
			ip->md5digest = strdup(val);
			if (!ip->md5digest)
				error("%s", strerror(errno));
			break;
		case F_FLAGS:
			if (!strcmp(val, "none")) {
				ip->file_flags = 0;
				break;
			}
			if (strtofflags(&val, &fset, &fclr))
				error("%s", strerror(errno));
			ip->file_flags = fset;
			break;
		case F_GID:
			ip->st_gid = strtoul(val, &ep, 10);
			if (*ep)
				error("invalid gid %s", val);
			break;
		case F_GNAME:
			if ((gr = getgrnam(val)) == NULL)
			    error("unknown group %s", val);
			ip->st_gid = gr->gr_gid;
			break;
		case F_IGN:
			/* just set flag bit */
			break;
		case F_MODE:
			if ((m = setmode(val)) == NULL)
				error("invalid file mode %s", val);
			ip->st_mode = getmode(m, 0);
			free(m);
			break;
		case F_NLINK:
			ip->st_nlink = strtoul(val, &ep, 10);
			if (*ep)
				error("invalid link count %s", val);
			break;
		case F_RMD160:
			ip->rmd160digest = strdup(val);
			if (!ip->rmd160digest)
				error("%s", strerror(errno));
			break;
		case F_SHA1:
			ip->sha1digest = strdup(val);
			if (!ip->sha1digest)
				error("%s", strerror(errno));
			break;
		case F_SHA256:
			ip->sha256digest = strdup(val);
			if (!ip->sha256digest)
				error("%s", strerror(errno));
			break;
		case F_SIZE:
			ip->st_size = strtoll(val, &ep, 10);
			if (*ep)
				error("invalid size %s", val);
			break;
		case F_SLINK:
			len = strlen(val) + 1;
			if ((ip->slink = malloc(len)) == NULL)
				error("%s", strerror(errno));
			if (strunvis(ip->slink, val) == -1) {
				fprintf(stderr,
				    "mtree: filename (%s) encoded incorrectly\n", val);
				strlcpy(ip->slink, val, len);
			}
			break;
		case F_TIME:
			ip->st_mtimespec.tv_sec = strtoul(val, &ep, 10);
			if (*ep != '.')
				error("invalid time %s", val);
			val = ep + 1;
			ip->st_mtimespec.tv_nsec = strtoul(val, &ep, 10);
			if (*ep)
				error("invalid time %s", val);
			break;
		case F_TYPE:
			switch(*val) {
			case 'b':
				if (!strcmp(val, "block"))
					ip->type = F_BLOCK;
				break;
			case 'c':
				if (!strcmp(val, "char"))
					ip->type = F_CHAR;
				break;
			case 'd':
				if (!strcmp(val, "dir"))
					ip->type = F_DIR;
				break;
			case 'f':
				if (!strcmp(val, "file"))
					ip->type = F_FILE;
				if (!strcmp(val, "fifo"))
					ip->type = F_FIFO;
				break;
			case 'l':
				if (!strcmp(val, "link"))
					ip->type = F_LINK;
				break;
			case 's':
				if (!strcmp(val, "socket"))
					ip->type = F_SOCK;
				break;
			default:
				error("unknown file type %s", val);
			}
			break;
		case F_UID:
			ip->st_uid = strtoul(val, &ep, 10);
			if (*ep)
				error("invalid uid %s", val);
			break;
		case F_UNAME:
			if ((pw = getpwnam(val)) == NULL)
			    error("unknown user %s", val);
			ip->st_uid = pw->pw_uid;
			break;
		}
	}
}

static void
unset(char *t, NODE *ip)
{
	char *p;

	while ((p = strtok(t, "\n\t ")))
		ip->flags &= ~parsekey(p, NULL);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $NetBSD: spec.c,v 1.6 1995/03/07 21:12:12 cgd Exp $ */
2			/* $OpenBSD: spec.c,v 1.28 2016/08/16 16:41:46 krw Exp $ */
3
4			/*-
5			* Copyright (c) 1989, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/types.h>
34			#include <sys/stat.h>
35			#include <pwd.h>
36			#include <grp.h>
37			#include <errno.h>
38			#include <unistd.h>
39			#include <stdio.h>
40			#include <ctype.h>
41			#include <vis.h>
42			#include "mtree.h"
43			#include "extern.h"
44
45			int lineno; /* Current spec line number. */
46
47			static void set(char , NODE );
48			static void unset(char , NODE );
49
50			NODE *
51			spec(void)
52			{
53			NODE centry, last;
54			char *p;
55		20	NODE ginfo, *root;
56			int c_cur, c_next;
57			char buf, tbuf = NULL;
58		10	size_t len;
59
60			last = root = NULL;
61		10	bzero(&ginfo, sizeof(ginfo));
62			centry = &ginfo;
63			c_cur = c_next = 0;
64	✓✓	3516	for (lineno = 1; (buf = fgetln(stdin, &len));
65		1748	++lineno, c_cur = c_next, c_next = 0) {
66			/* Null-terminate the line. */
67	✓✗	1748	if (buf[len - 1] == '\n') {
68		1748	buf[--len] = '\0';
69		1748	} else {
70			/* EOF with no newline. */
71			tbuf = malloc(len + 1);
72			memcpy(tbuf, buf, len);
73			tbuf[len] = '\0';
74			buf = tbuf;
75			}
76
77			/* Skip leading whitespace. */
78	✓✓	31660	for (p = buf; isspace((unsigned char)*p); p++)
79			;
80
81			/* If nothing but whitespace or comment char, continue. */
82	✓✓✓✓	3377	if (p == '\0' \|\| p == '#')
83			continue;
84
85			/* See if next line is continuation line. */
86	✓✓	1510	if (buf[len - 1] == '\\') {
87			c_next = 1;
88	✓✗	7	if (--len == 0)
89			continue;
90		7	buf[len] = '\0';
91		7	}
92
93			#ifdef DEBUG
94			(void)fprintf(stderr, "line %d: {%s}\n", lineno, p);
95			#endif
96	✓✓	1510	if (c_cur) {
97		7	set(p, centry);
98		7	continue;
99			}
100
101			/* Grab file name, "$", "set", or "unset". */
102	✗✓	1503	if ((p = strtok(p, "\n\t ")) == NULL)
103			error("missing field");
104
105	✓✓	1503	if (p[0] == '/')
106	✓✗✓	1300	switch(p[1]) {
107			case 's':
108	✓✗	16	if (strcmp(p + 1, "set"))
109			break;
110		16	set(NULL, &ginfo);
111		16	continue;
112			case 'u':
113			if (strcmp(p + 1, "unset"))
114			break;
115			unset(NULL, &ginfo);
116			continue;
117			}
118
119	✗✓	1487	if (strchr(p, '/'))
120			error("slash character in file name");
121
122	✓✓	1487	if (!strcmp(p, "..")) {
123			/* Don't go up, if haven't gone down. */
124	✓✗	679	if (!root)
125			goto noparent;
126	✓✓✓✓	1345	if (last->type != F_DIR \|\| last->flags & F_DONE) {
127	✓✗	119	if (last == root)
128			goto noparent;
129		119	last = last->parent;
130		119	}
131		679	last->flags \|= F_DONE;
132		679	continue;
133
134			noparent: error("no parent node");
135			}
136
137		808	len = strlen(p) + 1; /* NUL in struct _node */
138	✗✓	808	if ((centry = calloc(1, sizeof(NODE) + len - 1)) == NULL)
139			error("%s", strerror(errno));
140		808	*centry = ginfo;
141			#define MAGIC "?*["
142	✗✓	808	if (strpbrk(p, MAGIC))
143			centry->flags \|= F_MAGIC;
144	✗✓	808	if (strunvis(centry->name, p) == -1) {
145			fprintf(stderr,
146			"mtree: filename (%s) encoded incorrectly\n", p);
147			strlcpy(centry->name, p, len);
148			}
149		808	set(NULL, centry);
150
151	✓✓	808	if (!root) {
152			last = root = centry;
153		10	root->parent = root;
154	✓✓✓✓	1508	} else if (last->type == F_DIR && !(last->flags & F_DONE)) {
155		130	centry->parent = last;
156		130	last = last->child = centry;
157		130	} else {
158		668	centry->parent = last->parent;
159		668	centry->prev = last;
160		668	last = last->next = centry;
161			}
162			}
163		10	free(tbuf);
164		10	return (root);
165		10	}
166
167			static void
168			set(char t, NODE ip)
169			{
170			int type;
171		1662	char kw, val = NULL;
172			struct group *gr;
173			struct passwd *pw;
174			void *m;
175		831	int value;
176		831	u_int32_t fset, fclr;
177		831	char *ep;
178			size_t len;
179
180	✓✓	4122	for (; (kw = strtok(t, "= \t\n")); t = NULL) {
181		1230	ip->flags \|= type = parsekey(kw, &value);
182	✓✓✗✓	2359	if (value && (val = strtok(NULL, " \t\n")) == NULL)
183			error("missing value");
184	✗✗✗✗ ✓✓✗✗ ✗✗✗✗ ✗✓✗✓ ✓	2148	switch(type) {
185			case F_CKSUM:
186			ip->cksum = strtoul(val, &ep, 10);
187			if (*ep)
188			error("invalid checksum %s", val);
189			break;
190			case F_MD5:
191			ip->md5digest = strdup(val);
192			if (!ip->md5digest)
193			error("%s", strerror(errno));
194			break;
195			case F_FLAGS:
196			if (!strcmp(val, "none")) {
197			ip->file_flags = 0;
198			break;
199			}
200			if (strtofflags(&val, &fset, &fclr))
201			error("%s", strerror(errno));
202			ip->file_flags = fset;
203			break;
204			case F_GID:
205			ip->st_gid = strtoul(val, &ep, 10);
206			if (*ep)
207			error("invalid gid %s", val);
208			break;
209			case F_GNAME:
210	✗✓	278	if ((gr = getgrnam(val)) == NULL)
211			error("unknown group %s", val);
212		278	ip->st_gid = gr->gr_gid;
213		278	break;
214			case F_IGN:
215			/* just set flag bit */
216			break;
217			case F_MODE:
218	✗✓	338	if ((m = setmode(val)) == NULL)
219			error("invalid file mode %s", val);
220		338	ip->st_mode = getmode(m, 0);
221		338	free(m);
222		338	break;
223			case F_NLINK:
224			ip->st_nlink = strtoul(val, &ep, 10);
225			if (*ep)
226			error("invalid link count %s", val);
227			break;
228			case F_RMD160:
229			ip->rmd160digest = strdup(val);
230			if (!ip->rmd160digest)
231			error("%s", strerror(errno));
232			break;
233			case F_SHA1:
234			ip->sha1digest = strdup(val);
235			if (!ip->sha1digest)
236			error("%s", strerror(errno));
237			break;
238			case F_SHA256:
239			ip->sha256digest = strdup(val);
240			if (!ip->sha256digest)
241			error("%s", strerror(errno));
242			break;
243			case F_SIZE:
244			ip->st_size = strtoll(val, &ep, 10);
245			if (*ep)
246			error("invalid size %s", val);
247			break;
248			case F_SLINK:
249			len = strlen(val) + 1;
250			if ((ip->slink = malloc(len)) == NULL)
251			error("%s", strerror(errno));
252			if (strunvis(ip->slink, val) == -1) {
253			fprintf(stderr,
254			"mtree: filename (%s) encoded incorrectly\n", val);
255			strlcpy(ip->slink, val, len);
256			}
257			break;
258			case F_TIME:
259			ip->st_mtimespec.tv_sec = strtoul(val, &ep, 10);
260			if (*ep != '.')
261			error("invalid time %s", val);
262			val = ep + 1;
263			ip->st_mtimespec.tv_nsec = strtoul(val, &ep, 10);
264			if (*ep)
265			error("invalid time %s", val);
266			break;
267			case F_TYPE:
268	✗✓✓✓ ✗✗✗	211	switch(*val) {
269			case 'b':
270			if (!strcmp(val, "block"))
271			ip->type = F_BLOCK;
272			break;
273			case 'c':
274	✓✗	2	if (!strcmp(val, "char"))
275		2	ip->type = F_CHAR;
276			break;
277			case 'd':
278	✓✗	94	if (!strcmp(val, "dir"))
279		94	ip->type = F_DIR;
280			break;
281			case 'f':
282	✓✗	115	if (!strcmp(val, "file"))
283		115	ip->type = F_FILE;
284	✗✓	115	if (!strcmp(val, "fifo"))
285			ip->type = F_FIFO;
286			break;
287			case 'l':
288			if (!strcmp(val, "link"))
289			ip->type = F_LINK;
290			break;
291			case 's':
292			if (!strcmp(val, "socket"))
293			ip->type = F_SOCK;
294			break;
295			default:
296			error("unknown file type %s", val);
297			}
298			break;
299			case F_UID:
300			ip->st_uid = strtoul(val, &ep, 10);
301			if (*ep)
302			error("invalid uid %s", val);
303			break;
304			case F_UNAME:
305	✗✓	302	if ((pw = getpwnam(val)) == NULL)
306			error("unknown user %s", val);
307		302	ip->st_uid = pw->pw_uid;
308		302	break;
309			}
310			}
311		831	}
312
313			static void
314			unset(char t, NODE ip)
315			{
316			char *p;
317
318			while ((p = strtok(t, "\n\t ")))
319			ip->flags &= ~parsekey(p, NULL);
320			}