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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/amd/amd/info_file.c	Lines:	0	81	0.0 %
Date:	2016-12-06	Branches:	0	88	0.0 %


/*
 * Copyright (c) 1990 Jan-Simon Pendry
 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Jan-Simon Pendry at Imperial College, London.
 *
 * 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: @(#)info_file.c	8.1 (Berkeley) 6/6/93
 *	$Id: info_file.c,v 1.9 2014/10/26 03:03:34 guenther Exp $
 */

/*
 * Get info from file
 */

#include "am.h"

#include <ctype.h>
#include <sys/stat.h>

#define	MAX_LINE_LEN	2048

static int
read_line(char *buf, int size, FILE *fp)
{
	int done = 0;

	do {
		while (fgets(buf, size, fp)) {
			int len = strlen(buf);

			done += len;
			if (len > 1 && buf[len-2] == '\\' &&
			    buf[len-1] == '\n') {
				int ch;

				buf += len - 2;
				size -= len - 2;
				*buf = '\n'; buf[1] = '\0';
				/*
				 * Skip leading white space on next line
				 */
				while ((ch = getc(fp)) != EOF &&
				    isascii(ch) && isspace(ch))
					;
				(void) ungetc(ch, fp);
			} else {
				return done;
			}
		}
	} while (size > 0 && !feof(fp));
	return done;
}

/*
 * Try to locate a key in a file
 */
static int
search_or_reload_file(FILE *fp, char *map, char *key, char **val, mnt_map *m,
    void (*fn)(mnt_map *m, char *, char *))
{
	char key_val[MAX_LINE_LEN];
	int chuck = 0;
	int line_no = 0;

	while (read_line(key_val, sizeof(key_val), fp)) {
		char *kp;
		char *cp;
		char *hash;
		int len = strlen(key_val);

		line_no++;

		/*
		 * Make sure we got the whole line
		 */
		if (key_val[len-1] != '\n') {
			plog(XLOG_WARNING, "line %d in \"%s\" is too long",
			    line_no, map);
			chuck = 1;
		} else {
			key_val[len-1] = '\0';
		}

		/*
		 * Strip comments
		 */
		hash = strchr(key_val, '#');
		if (hash)
			*hash = '\0';

		/*
		 * Find start of key
		 */
		for (kp = key_val;
		    isascii((unsigned char)*kp) && isspace((unsigned char)*kp);
		    kp++)
			;

		/*
		 * Ignore blank lines
		 */
		if (!*kp)
			goto again;

		/*
		 * Find end of key
		 */
		for (cp = kp; *cp &&
		    (!isascii((unsigned char)*cp) || !isspace((unsigned char)*cp));
		    cp++)
			;

		/*
		 * Check whether key matches
		 */
		if (*cp)
			*cp++ = '\0';

		if (fn || (*key == *kp && strcmp(key, kp) == 0)) {
			while (isascii((unsigned char)*cp) &&
			    isspace((unsigned char)*cp))
				cp++;
			if (*cp) {
				/*
				 * Return a copy of the data
				 */
				char *dc = strdup(cp);
				if (fn) {
					(*fn)(m, strdup(kp), dc);
				} else {
					*val = dc;
#ifdef DEBUG
					dlog("%s returns %s", key, dc);
#endif /* DEBUG */
				}
				if (!fn)
					return 0;
			} else {
				plog(XLOG_USER, "%s: line %d has no value field",
				    map, line_no);
			}
		}

again:
		/*
		 * If the last read didn't get a whole line then
		 * throw away the remainder before continuing...
		 */
		if (chuck) {
			while (fgets(key_val, sizeof(key_val), fp) &&
			    !strchr(key_val, '\n'))
					;
			chuck = 0;
		}
	}

	return fn ? 0 : ENOENT;
}

static FILE *
file_open(char *map, time_t *tp)
{
	FILE *mapf = fopen(map, "r");

	if (mapf && tp) {
		struct stat stb;

		if (fstat(fileno(mapf), &stb) < 0)
			*tp = clocktime();
		else
			*tp = stb.st_mtime;
	}
	return mapf;
}

int
file_init(char *map, time_t *tp)
{
	FILE *mapf = file_open(map, tp);

	if (mapf) {
		(void) fclose(mapf);
		return 0;
	}
	return errno;
}

int
file_reload(mnt_map *m, char *map, void (*fn)(mnt_map *, char *, char *))
{
	FILE *mapf = file_open(map, (time_t *) 0);

	if (mapf) {
		int error = search_or_reload_file(mapf, map, 0, 0, m, fn);
		(void) fclose(mapf);
		return error;
	}

	return errno;
}

int
file_search(mnt_map *m, char *map, char *key, char **pval, time_t *tp)
{
	time_t t;
	FILE *mapf = file_open(map, &t);

	if (mapf) {
		int error;
		if (*tp < t) {
			*tp = t;
			error = -1;
		} else {
			error = search_or_reload_file(mapf, map, key, pval, 0, 0);
		}
		(void) fclose(mapf);
		return error;
	}

	return errno;
}

int
file_mtime(char *map, time_t *tp)
{
	FILE *mapf = file_open(map, tp);

	if (mapf) {
		(void) fclose(mapf);
		return 0;
	}

	return errno;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 1990 Jan-Simon Pendry
3			* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
4			* Copyright (c) 1990, 1993
5			* The Regents of the University of California. All rights reserved.
6			*
7			* This code is derived from software contributed to Berkeley by
8			* Jan-Simon Pendry at Imperial College, London.
9			*
10			* Redistribution and use in source and binary forms, with or without
11			* modification, are permitted provided that the following conditions
12			* are met:
13			* 1. Redistributions of source code must retain the above copyright
14			* notice, this list of conditions and the following disclaimer.
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in the
17			* documentation and/or other materials provided with the distribution.
18			* 3. Neither the name of the University nor the names of its contributors
19			* may be used to endorse or promote products derived from this software
20			* without specific prior written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*
34			* from: @(#)info_file.c 8.1 (Berkeley) 6/6/93
35			* $Id: info_file.c,v 1.9 2014/10/26 03:03:34 guenther Exp $
36			*/
37
38			/*
39			* Get info from file
40			*/
41
42			#include "am.h"
43
44			#include <ctype.h>
45			#include <sys/stat.h>
46
47			#define MAX_LINE_LEN 2048
48
49			static int
50			read_line(char buf, int size, FILE fp)
51			{
52			int done = 0;
53
54			do {
55			while (fgets(buf, size, fp)) {
56			int len = strlen(buf);
57
58			done += len;
59			if (len > 1 && buf[len-2] == '\\' &&
60			buf[len-1] == '\n') {
61			int ch;
62
63			buf += len - 2;
64			size -= len - 2;
65			*buf = '\n'; buf[1] = '\0';
66			/*
67			* Skip leading white space on next line
68			*/
69			while ((ch = getc(fp)) != EOF &&
70			isascii(ch) && isspace(ch))
71			;
72			(void) ungetc(ch, fp);
73			} else {
74			return done;
75			}
76			}
77			} while (size > 0 && !feof(fp));
78			return done;
79			}
80
81			/*
82			* Try to locate a key in a file
83			*/
84			static int
85			search_or_reload_file(FILE fp, char map, char key, char val, mnt_map m,
86			void (fn)(mnt_map m, char , char ))
87			{
88			char key_val[MAX_LINE_LEN];
89			int chuck = 0;
90			int line_no = 0;
91
92			while (read_line(key_val, sizeof(key_val), fp)) {
93			char *kp;
94			char *cp;
95			char *hash;
96			int len = strlen(key_val);
97
98			line_no++;
99
100			/*
101			* Make sure we got the whole line
102			*/
103			if (key_val[len-1] != '\n') {
104			plog(XLOG_WARNING, "line %d in \"%s\" is too long",
105			line_no, map);
106			chuck = 1;
107			} else {
108			key_val[len-1] = '\0';
109			}
110
111			/*
112			* Strip comments
113			*/
114			hash = strchr(key_val, '#');
115			if (hash)
116			*hash = '\0';
117
118			/*
119			* Find start of key
120			*/
121			for (kp = key_val;
122			isascii((unsigned char)kp) && isspace((unsigned char)kp);
123			kp++)
124			;
125
126			/*
127			* Ignore blank lines
128			*/
129			if (!*kp)
130			goto again;
131
132			/*
133			* Find end of key
134			*/
135			for (cp = kp; *cp &&
136			(!isascii((unsigned char)cp) \|\| !isspace((unsigned char)cp));
137			cp++)
138			;
139
140			/*
141			* Check whether key matches
142			*/
143			if (*cp)
144			*cp++ = '\0';
145
146			if (fn \|\| (key == kp && strcmp(key, kp) == 0)) {
147			while (isascii((unsigned char)*cp) &&
148			isspace((unsigned char)*cp))
149			cp++;
150			if (*cp) {
151			/*
152			* Return a copy of the data
153			*/
154			char *dc = strdup(cp);
155			if (fn) {
156			(*fn)(m, strdup(kp), dc);
157			} else {
158			*val = dc;
159			#ifdef DEBUG
160			dlog("%s returns %s", key, dc);
161			#endif /* DEBUG */
162			}
163			if (!fn)
164			return 0;
165			} else {
166			plog(XLOG_USER, "%s: line %d has no value field",
167			map, line_no);
168			}
169			}
170
171			again:
172			/*
173			* If the last read didn't get a whole line then
174			* throw away the remainder before continuing...
175			*/
176			if (chuck) {
177			while (fgets(key_val, sizeof(key_val), fp) &&
178			!strchr(key_val, '\n'))
179			;
180			chuck = 0;
181			}
182			}
183
184			return fn ? 0 : ENOENT;
185			}
186
187			static FILE *
188			file_open(char map, time_t tp)
189			{
190			FILE *mapf = fopen(map, "r");
191
192			if (mapf && tp) {
193			struct stat stb;
194
195			if (fstat(fileno(mapf), &stb) < 0)
196			*tp = clocktime();
197			else
198			*tp = stb.st_mtime;
199			}
200			return mapf;
201			}
202
203			int
204			file_init(char map, time_t tp)
205			{
206			FILE *mapf = file_open(map, tp);
207
208			if (mapf) {
209			(void) fclose(mapf);
210			return 0;
211			}
212			return errno;
213			}
214
215			int
216			file_reload(mnt_map m, char map, void (fn)(mnt_map , char , char ))
217			{
218			FILE mapf = file_open(map, (time_t ) 0);
219
220			if (mapf) {
221			int error = search_or_reload_file(mapf, map, 0, 0, m, fn);
222			(void) fclose(mapf);
223			return error;
224			}
225
226			return errno;
227			}
228
229			int
230			file_search(mnt_map m, char map, char key, char pval, time_t tp)
231			{
232			time_t t;
233			FILE *mapf = file_open(map, &t);
234
235			if (mapf) {
236			int error;
237			if (*tp < t) {
238			*tp = t;
239			error = -1;
240			} else {
241			error = search_or_reload_file(mapf, map, key, pval, 0, 0);
242			}
243			(void) fclose(mapf);
244			return error;
245			}
246
247			return errno;
248			}
249
250			int
251			file_mtime(char map, time_t tp)
252			{
253			FILE *mapf = file_open(map, tp);
254
255			if (mapf) {
256			(void) fclose(mapf);
257			return 0;
258			}
259
260			return errno;
261			}