Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/rbootd/parseconf.c	Lines:	0	85	0.0 %
Date:	2017-11-13	Branches:	0	112	0.0 %


/*	$OpenBSD: parseconf.c,v 1.13 2016/05/29 02:19:02 guenther Exp $	*/
/*	$NetBSD: parseconf.c,v 1.4 1995/10/06 05:12:16 thorpej Exp $	*/

/*
 * Copyright (c) 1988, 1992 The University of Utah and the Center
 *	for Software Science (CSS).
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Center for Software Science of the University of Utah Computer
 * Science Department.  CSS requests users of this software to return
 * to css-dist@cs.utah.edu any improvements that they make and grant
 * CSS redistribution rights.
 *
 * 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.
 *
 *	from: @(#)parseconf.c	8.1 (Berkeley) 6/4/93
 *
 * From: Utah Hdr: parseconf.c 3.1 92/07/06
 * Author: Jeff Forys, University of Utah CSS
 */

#include <sys/stat.h>

#include <ctype.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include "defs.h"

/*
**  ParseConfig -- parse the config file into linked list of clients.
**
**	Parameters:
**		None.
**
**	Returns:
**		1 on success, 0 otherwise.
**
**	Side Effects:
**		- Linked list of clients will be (re)allocated.
**
**	Warnings:
**		- GetBootFiles() must be called before this routine
**		  to create a linked list of default boot files.
*/
int
ParseConfig(void)
{
	char line[C_LINELEN], *cp, *bcp;
	int i, j, linecnt = 0;
	u_int8_t *addr;
	CLIENT *client;
	FILE *fp;

	if (BootAny)				/* ignore config file */
		return(1);

	FreeClients();				/* delete old list of clients */

	if ((fp = fopen(ConfigFile, "r")) == NULL) {
		syslog(LOG_ERR, "ParseConfig: can't open config file (%s)",
		    ConfigFile);
		return(0);
	}

	/*
	 *  GETSTR positions `bcp' at the start of the current token,
	 *  and null terminates it.  `cp' is positioned at the start
	 *  of the next token.  spaces & commas are separators.
	 */
#define GETSTR	while (isspace((unsigned char)*cp) || *cp == ',')	\
			cp++;						\
		bcp = cp;						\
		while (*cp && *cp!=',' && !isspace((unsigned char)*cp))	\
			cp++;						\
		if (*cp)						\
			*cp++ = '\0'

	/*
	 *  For each line, parse it into a new CLIENT struct.
	 */
	while (fgets(line, C_LINELEN, fp) != NULL) {
		linecnt++;				/* line counter */

		if (*line == '\0' || *line == '#')	/* ignore comment */
			continue;

		if ((cp = strchr(line,'#')) != NULL)	/* trash comments */
			*cp = '\0';

		cp = line;				/* init `cp' */
		GETSTR;					/* get RMP addr */
		if (bcp == cp)				/* all delimiters */
			continue;

		/*
		 *  Get an RMP address from a string.  Abort on failure.
		 */
		if ((addr = ParseAddr(bcp)) == NULL) {
			syslog(LOG_ERR,
			    "ParseConfig: line %d: cant parse <%s>",
			    linecnt, bcp);
			continue;
		}

		if ((client = NewClient(addr)) == NULL)	/* alloc new client */
			continue;

		GETSTR;					/* get first file */

		/*
		 *  If no boot files are spec'd, use the default list.
		 *  Otherwise, validate each file (`bcp') against the
		 *  list of bootable files.
		 */
		i = 0;
		if (bcp == cp) {			/* no files spec'd */
			for (; i < C_MAXFILE && BootFiles[i] != NULL; i++)
				client->files[i] = BootFiles[i];
		} else {
			do {
				/*
				 *  For each boot file spec'd, make sure it's
				 *  in our list.  If so, include a pointer to
				 *  it in the CLIENT's list of boot files.
				 */
				for (j = 0; ; j++) {
					if (j==C_MAXFILE||BootFiles[j]==NULL) {
						syslog(LOG_ERR,
						    "ParseConfig: line %d: no boot file (%s)",
						    linecnt, bcp);
						break;
					}
					if (STREQN(BootFiles[j], bcp)) {
						if (i < C_MAXFILE)
							client->files[i++] =
							    BootFiles[j];
						else
							syslog(LOG_ERR, "ParseConfig: line %d: too many boot files (%s)",
							       linecnt, bcp);
						break;
					}
				}
				GETSTR;			/* get next file */
			} while (bcp != cp);

			/*
			 *  Restricted list of boot files were spec'd,
			 *  however, none of them were found.  Since we
			 *  apparently cant let them boot "just anything",
			 *  the entire record is invalidated.
			 */
			if (i == 0) {
				FreeClient(client);
				continue;
			}
		}

		/*
		 *  Link this client into the linked list of clients.
		 *  SIGHUP has already been blocked.
		 */
		if (Clients)
			client->next = Clients;
		Clients = client;
	}

	(void) fclose(fp);				/* close config file */
	return(1);					/* return success */
}

/*
**  ParseAddr -- Parse a string containing an RMP address.
**
**	This routine is fairly liberal at parsing an RMP address.  The
**	address must contain 6 octets consisting of between 0 and 2 hex
**	chars (upper/lower case) separated by colons.  If two colons are
**	together (e.g. "::", the octet between them is recorded as being
**	zero.  Hence, the following addrs are all valid and parse to the
**	same thing:
**
**		08:00:09:00:66:ad	8::9:0:66:AD	8::9::66:aD
**
**	For clarity, an RMP address is really an Ethernet address, but
**	since the HP boot code uses IEEE 802.3, it's really an IEEE
**	802.3 address.  Of course, all of these are identical.
**
**	Parameters:
**		str - string representation of an RMP address.
**
**	Returns:
**		pointer to a static array of RMP_ADDRLEN bytes.
**
**	Side Effects:
**		None.
**
**	Warnings:
**		- The return value points to a static buffer; it must
**		  be copied if it's to be saved.
*/
u_int8_t *
ParseAddr(char *str)
{
	static u_int8_t addr[RMP_ADDRLEN];
	int part, subpart;
	unsigned int i;
	char *cp;

	bzero((char *)&addr[0], RMP_ADDRLEN);	/* zero static buffer */

	part = subpart = 0;
	for (cp = str; *cp; cp++) {
		/*
		 *  A colon (`:') must be used to delimit each octet.
		 */
		if (*cp == ':') {
			if (++part == RMP_ADDRLEN)	/* too many parts */
				return(NULL);
			subpart = 0;
			continue;
		}

		/*
		 *  Convert hex character to an integer.
		 */
		if (isdigit((unsigned char)*cp))
			i = *cp - '0';
		else {
			i = (isupper((unsigned char)*cp) ?
			    tolower((unsigned char)*cp) : *cp) - 'a' + 10;
			if (i < 10 || i > 15)		/* not a hex char */
				return(NULL);
		}

		if (subpart++) {
			if (subpart > 2)		/* too many hex chars */
				return(NULL);
			addr[part] <<= 4;
		}
		addr[part] |= i;
	}

	if (part != (RMP_ADDRLEN-1))			/* too few parts */
		return(NULL);

	return(&addr[0]);
}

/*
**  GetBootFiles -- record list of files in current (boot) directory.
**
**	Parameters:
**		None.
**
**	Returns:
**		Number of boot files on success, 0 on failure.
**
**	Side Effects:
**		Strings in `BootFiles' are freed/allocated.
**
**	Warnings:
**		- After this routine is called, ParseConfig() must be
**		  called to re-order it's list of boot file pointers.
*/
int
GetBootFiles(void)
{
	struct stat statb;
	struct dirent *dp;
	DIR *dfd;
	int i;

	/*
	 *  Free the current list of boot files.
	 */
	for (i = 0; i < C_MAXFILE && BootFiles[i] != NULL; i++) {
		FreeStr(BootFiles[i]);
		BootFiles[i] = NULL;
	}

	/*
	 *  Open current directory to read boot file names.
	 */
	if ((dfd = opendir(".")) == NULL) {	/* open BootDir */
		syslog(LOG_ERR, "GetBootFiles: can't open directory (%s)",
		       BootDir);
		return(0);
	}

	/*
	 *  Read each boot file name and allocate space for it in the
	 *  list of boot files (BootFiles).  All boot files read after
	 *  C_MAXFILE will be ignored.
	 */
	i = 0;
	for (dp = readdir(dfd); dp != NULL; dp = readdir(dfd)) {
		if (stat(dp->d_name, &statb) < 0 ||
		    (statb.st_mode & S_IFMT) != S_IFREG)
			continue;
		if (i == C_MAXFILE)
			syslog(LOG_ERR,
			       "GetBootFiles: too many boot files (%s ignored)",
			       dp->d_name);
		else if ((BootFiles[i] = NewStr(dp->d_name)) != NULL)
			i++;
	}

	(void) closedir(dfd);			/* close BootDir */

	if (i == 0)				/* cant find any boot files */
		syslog(LOG_ERR, "GetBootFiles: no boot files (%s)", BootDir);

	return(i);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: parseconf.c,v 1.13 2016/05/29 02:19:02 guenther Exp $ */
2			/* $NetBSD: parseconf.c,v 1.4 1995/10/06 05:12:16 thorpej Exp $ */
3
4			/*
5			* Copyright (c) 1988, 1992 The University of Utah and the Center
6			* for Software Science (CSS).
7			* Copyright (c) 1992, 1993
8			* The Regents of the University of California. All rights reserved.
9			*
10			* This code is derived from software contributed to Berkeley by
11			* the Center for Software Science of the University of Utah Computer
12			* Science Department. CSS requests users of this software to return
13			* to css-dist@cs.utah.edu any improvements that they make and grant
14			* CSS redistribution rights.
15			*
16			* Redistribution and use in source and binary forms, with or without
17			* modification, are permitted provided that the following conditions
18			* are met:
19			* 1. Redistributions of source code must retain the above copyright
20			* notice, this list of conditions and the following disclaimer.
21			* 2. Redistributions in binary form must reproduce the above copyright
22			* notice, this list of conditions and the following disclaimer in the
23			* documentation and/or other materials provided with the distribution.
24			* 3. Neither the name of the University nor the names of its contributors
25			* may be used to endorse or promote products derived from this software
26			* without specific prior written permission.
27			*
28			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38			* SUCH DAMAGE.
39			*
40			* from: @(#)parseconf.c 8.1 (Berkeley) 6/4/93
41			*
42			* From: Utah Hdr: parseconf.c 3.1 92/07/06
43			* Author: Jeff Forys, University of Utah CSS
44			*/
45
46			#include <sys/stat.h>
47
48			#include <ctype.h>
49			#include <dirent.h>
50			#include <stdio.h>
51			#include <stdlib.h>
52			#include <string.h>
53			#include <syslog.h>
54			#include "defs.h"
55
56			/*
57			** ParseConfig -- parse the config file into linked list of clients.
58			**
59			** Parameters:
60			** None.
61			**
62			** Returns:
63			** 1 on success, 0 otherwise.
64			**
65			** Side Effects:
66			** - Linked list of clients will be (re)allocated.
67			**
68			** Warnings:
69			** - GetBootFiles() must be called before this routine
70			** to create a linked list of default boot files.
71			*/
72			int
73			ParseConfig(void)
74			{
75			char line[C_LINELEN], cp, bcp;
76			int i, j, linecnt = 0;
77			u_int8_t *addr;
78			CLIENT *client;
79			FILE *fp;
80
81			if (BootAny) /* ignore config file */
82			return(1);
83
84			FreeClients(); /* delete old list of clients */
85
86			if ((fp = fopen(ConfigFile, "r")) == NULL) {
87			syslog(LOG_ERR, "ParseConfig: can't open config file (%s)",
88			ConfigFile);
89			return(0);
90			}
91
92			/*
93			* GETSTR positions `bcp' at the start of the current token,
94			* and null terminates it. `cp' is positioned at the start
95			* of the next token. spaces & commas are separators.
96			*/
97			#define GETSTR while (isspace((unsigned char)cp) \|\| cp == ',') \
98			cp++; \
99			bcp = cp; \
100			while (cp && cp!=',' && !isspace((unsigned char)*cp)) \
101			cp++; \
102			if (*cp) \
103			*cp++ = '\0'
104
105			/*
106			* For each line, parse it into a new CLIENT struct.
107			*/
108			while (fgets(line, C_LINELEN, fp) != NULL) {
109			linecnt++; /* line counter */
110
111			if (line == '\0' \|\| line == '#') /* ignore comment */
112			continue;
113
114			if ((cp = strchr(line,'#')) != NULL) /* trash comments */
115			*cp = '\0';
116
117			cp = line; /* init `cp' */
118			GETSTR; /* get RMP addr */
119			if (bcp == cp) /* all delimiters */
120			continue;
121
122			/*
123			* Get an RMP address from a string. Abort on failure.
124			*/
125			if ((addr = ParseAddr(bcp)) == NULL) {
126			syslog(LOG_ERR,
127			"ParseConfig: line %d: cant parse <%s>",
128			linecnt, bcp);
129			continue;
130			}
131
132			if ((client = NewClient(addr)) == NULL) /* alloc new client */
133			continue;
134
135			GETSTR; /* get first file */
136
137			/*
138			* If no boot files are spec'd, use the default list.
139			* Otherwise, validate each file (`bcp') against the
140			* list of bootable files.
141			*/
142			i = 0;
143			if (bcp == cp) { /* no files spec'd */
144			for (; i < C_MAXFILE && BootFiles[i] != NULL; i++)
145			client->files[i] = BootFiles[i];
146			} else {
147			do {
148			/*
149			* For each boot file spec'd, make sure it's
150			* in our list. If so, include a pointer to
151			* it in the CLIENT's list of boot files.
152			*/
153			for (j = 0; ; j++) {
154			if (j==C_MAXFILE\|\|BootFiles[j]==NULL) {
155			syslog(LOG_ERR,
156			"ParseConfig: line %d: no boot file (%s)",
157			linecnt, bcp);
158			break;
159			}
160			if (STREQN(BootFiles[j], bcp)) {
161			if (i < C_MAXFILE)
162			client->files[i++] =
163			BootFiles[j];
164			else
165			syslog(LOG_ERR, "ParseConfig: line %d: too many boot files (%s)",
166			linecnt, bcp);
167			break;
168			}
169			}
170			GETSTR; /* get next file */
171			} while (bcp != cp);
172
173			/*
174			* Restricted list of boot files were spec'd,
175			* however, none of them were found. Since we
176			* apparently cant let them boot "just anything",
177			* the entire record is invalidated.
178			*/
179			if (i == 0) {
180			FreeClient(client);
181			continue;
182			}
183			}
184
185			/*
186			* Link this client into the linked list of clients.
187			* SIGHUP has already been blocked.
188			*/
189			if (Clients)
190			client->next = Clients;
191			Clients = client;
192			}
193
194			(void) fclose(fp); /* close config file */
195			return(1); /* return success */
196			}
197
198			/*
199			** ParseAddr -- Parse a string containing an RMP address.
200			**
201			** This routine is fairly liberal at parsing an RMP address. The
202			** address must contain 6 octets consisting of between 0 and 2 hex
203			** chars (upper/lower case) separated by colons. If two colons are
204			** together (e.g. "::", the octet between them is recorded as being
205			** zero. Hence, the following addrs are all valid and parse to the
206			** same thing:
207			**
208			** 08:00:09:00:66:ad 8::9:0:66:AD 8::9::66:aD
209			**
210			** For clarity, an RMP address is really an Ethernet address, but
211			** since the HP boot code uses IEEE 802.3, it's really an IEEE
212			** 802.3 address. Of course, all of these are identical.
213			**
214			** Parameters:
215			** str - string representation of an RMP address.
216			**
217			** Returns:
218			** pointer to a static array of RMP_ADDRLEN bytes.
219			**
220			** Side Effects:
221			** None.
222			**
223			** Warnings:
224			** - The return value points to a static buffer; it must
225			** be copied if it's to be saved.
226			*/
227			u_int8_t *
228			ParseAddr(char *str)
229			{
230			static u_int8_t addr[RMP_ADDRLEN];
231			int part, subpart;
232			unsigned int i;
233			char *cp;
234
235			bzero((char )&addr[0], RMP_ADDRLEN); / zero static buffer */
236
237			part = subpart = 0;
238			for (cp = str; *cp; cp++) {
239			/*
240			* A colon (`:') must be used to delimit each octet.
241			*/
242			if (*cp == ':') {
243			if (++part == RMP_ADDRLEN) /* too many parts */
244			return(NULL);
245			subpart = 0;
246			continue;
247			}
248
249			/*
250			* Convert hex character to an integer.
251			*/
252			if (isdigit((unsigned char)*cp))
253			i = *cp - '0';
254			else {
255			i = (isupper((unsigned char)*cp) ?
256			tolower((unsigned char)cp) : cp) - 'a' + 10;
257			if (i < 10 \|\| i > 15) /* not a hex char */
258			return(NULL);
259			}
260
261			if (subpart++) {
262			if (subpart > 2) /* too many hex chars */
263			return(NULL);
264			addr[part] <<= 4;
265			}
266			addr[part] \|= i;
267			}
268
269			if (part != (RMP_ADDRLEN-1)) /* too few parts */
270			return(NULL);
271
272			return(&addr[0]);
273			}
274
275			/*
276			** GetBootFiles -- record list of files in current (boot) directory.
277			**
278			** Parameters:
279			** None.
280			**
281			** Returns:
282			** Number of boot files on success, 0 on failure.
283			**
284			** Side Effects:
285			** Strings in `BootFiles' are freed/allocated.
286			**
287			** Warnings:
288			** - After this routine is called, ParseConfig() must be
289			** called to re-order it's list of boot file pointers.
290			*/
291			int
292			GetBootFiles(void)
293			{
294			struct stat statb;
295			struct dirent *dp;
296			DIR *dfd;
297			int i;
298
299			/*
300			* Free the current list of boot files.
301			*/
302			for (i = 0; i < C_MAXFILE && BootFiles[i] != NULL; i++) {
303			FreeStr(BootFiles[i]);
304			BootFiles[i] = NULL;
305			}
306
307			/*
308			* Open current directory to read boot file names.
309			*/
310			if ((dfd = opendir(".")) == NULL) { /* open BootDir */
311			syslog(LOG_ERR, "GetBootFiles: can't open directory (%s)",
312			BootDir);
313			return(0);
314			}
315
316			/*
317			* Read each boot file name and allocate space for it in the
318			* list of boot files (BootFiles). All boot files read after
319			* C_MAXFILE will be ignored.
320			*/
321			i = 0;
322			for (dp = readdir(dfd); dp != NULL; dp = readdir(dfd)) {
323			if (stat(dp->d_name, &statb) < 0 \|\|
324			(statb.st_mode & S_IFMT) != S_IFREG)
325			continue;
326			if (i == C_MAXFILE)
327			syslog(LOG_ERR,
328			"GetBootFiles: too many boot files (%s ignored)",
329			dp->d_name);
330			else if ((BootFiles[i] = NewStr(dp->d_name)) != NULL)
331			i++;
332			}
333
334			(void) closedir(dfd); /* close BootDir */
335
336			if (i == 0) /* cant find any boot files */
337			syslog(LOG_ERR, "GetBootFiles: no boot files (%s)", BootDir);
338
339			return(i);
340			}