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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/ripd/name2id.c	Lines:	0	49	0.0 %
Date:	2017-11-07	Branches:	0	42	0.0 %


/*	$OpenBSD: name2id.c,v 1.1 2007/01/08 13:01:10 claudio Exp $ */

/*
 * Copyright (c) 2004, 2005 Henning Brauer <henning@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/socket.h>

#include <net/route.h>

#include <errno.h>
#include <stdlib.h>
#include <string.h>

#include "ripd.h"

#define	IDVAL_MAX	50000

struct n2id_label {
	TAILQ_ENTRY(n2id_label)	 entry;
	char			*name;
	u_int16_t		 id;
	int			 ref;
};

TAILQ_HEAD(n2id_labels, n2id_label);

u_int16_t	 _name2id(struct n2id_labels *, const char *);
const char	*_id2name(struct n2id_labels *, u_int16_t);
void		 _unref(struct n2id_labels *, u_int16_t);
void		 _ref(struct n2id_labels *, u_int16_t);

struct n2id_labels	rt_labels = TAILQ_HEAD_INITIALIZER(rt_labels);

u_int16_t
rtlabel_name2id(const char *name)
{
	return (_name2id(&rt_labels, name));
}

const char *
rtlabel_id2name(u_int16_t id)
{
	return (_id2name(&rt_labels, id));
}

void
rtlabel_unref(u_int16_t id)
{
	_unref(&rt_labels, id);
}

/*
void
rtlabel_ref(u_int16_t id)
{
	_ref(&rt_labels, id);
}
*/

u_int16_t
_name2id(struct n2id_labels *head, const char *name)
{
	struct n2id_label	*label, *p = NULL;
	u_int16_t		 new_id = 1;

	if (!name[0]) {
		errno = EINVAL;
		return (0);
	}

	TAILQ_FOREACH(label, head, entry)
		if (strcmp(name, label->name) == 0) {
			label->ref++;
			return (label->id);
		}

	/*
	 * to avoid fragmentation, we do a linear search from the beginning
	 * and take the first free slot we find. if there is none or the list
	 * is empty, append a new entry at the end.
	 */

	if (!TAILQ_EMPTY(head))
		for (p = TAILQ_FIRST(head); p != NULL &&
		    p->id == new_id; p = TAILQ_NEXT(p, entry))
			new_id = p->id + 1;

	if (new_id > IDVAL_MAX) {
		errno = ERANGE;
		return (0);
	}

	if ((label = calloc(1, sizeof(struct n2id_label))) == NULL)
		return (0);
	if ((label->name = strdup(name)) == NULL) {
		free(label);
		return (0);
	}
	label->id = new_id;
	label->ref++;

	if (p != NULL)	/* insert new entry before p */
		TAILQ_INSERT_BEFORE(p, label, entry);
	else		/* either list empty or no free slot in between */
		TAILQ_INSERT_TAIL(head, label, entry);

	return (label->id);
}

const char *
_id2name(struct n2id_labels *head, u_int16_t id)
{
	struct n2id_label	*label;

	if (id == 0)
		return ("");

	TAILQ_FOREACH(label, head, entry)
		if (label->id == id)
			return (label->name);

	return ("");
}

void
_unref(struct n2id_labels *head, u_int16_t id)
{
	struct n2id_label	*p, *next;

	if (id == 0)
		return;

	for (p = TAILQ_FIRST(head); p != NULL; p = next) {
		next = TAILQ_NEXT(p, entry);
		if (id == p->id) {
			if (--p->ref == 0) {
				TAILQ_REMOVE(head, p, entry);
				free(p->name);
				free(p);
			}
			break;
		}
	}
}

void
_ref(struct n2id_labels *head, u_int16_t id)
{
	struct n2id_label	*label;

	if (id == 0)
		return;

	TAILQ_FOREACH(label, head, entry)
		if (label->id == id) {
			++label->ref;
			break;
		}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: name2id.c,v 1.1 2007/01/08 13:01:10 claudio Exp $ */
2
3			/*
4			* Copyright (c) 2004, 2005 Henning Brauer <henning@openbsd.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
15			* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
16			* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20			#include <sys/socket.h>
21
22			#include <net/route.h>
23
24			#include <errno.h>
25			#include <stdlib.h>
26			#include <string.h>
27
28			#include "ripd.h"
29
30			#define IDVAL_MAX 50000
31
32			struct n2id_label {
33			TAILQ_ENTRY(n2id_label) entry;
34			char *name;
35			u_int16_t id;
36			int ref;
37			};
38
39			TAILQ_HEAD(n2id_labels, n2id_label);
40
41			u_int16_t _name2id(struct n2id_labels , const char );
42			const char _id2name(struct n2id_labels , u_int16_t);
43			void _unref(struct n2id_labels *, u_int16_t);
44			void _ref(struct n2id_labels *, u_int16_t);
45
46			struct n2id_labels rt_labels = TAILQ_HEAD_INITIALIZER(rt_labels);
47
48			u_int16_t
49			rtlabel_name2id(const char *name)
50			{
51			return (_name2id(&rt_labels, name));
52			}
53
54			const char *
55			rtlabel_id2name(u_int16_t id)
56			{
57			return (_id2name(&rt_labels, id));
58			}
59
60			void
61			rtlabel_unref(u_int16_t id)
62			{
63			_unref(&rt_labels, id);
64			}
65
66			/*
67			void
68			rtlabel_ref(u_int16_t id)
69			{
70			_ref(&rt_labels, id);
71			}
72			*/
73
74			u_int16_t
75			_name2id(struct n2id_labels head, const char name)
76			{
77			struct n2id_label label, p = NULL;
78			u_int16_t new_id = 1;
79
80			if (!name[0]) {
81			errno = EINVAL;
82			return (0);
83			}
84
85			TAILQ_FOREACH(label, head, entry)
86			if (strcmp(name, label->name) == 0) {
87			label->ref++;
88			return (label->id);
89			}
90
91			/*
92			* to avoid fragmentation, we do a linear search from the beginning
93			* and take the first free slot we find. if there is none or the list
94			* is empty, append a new entry at the end.
95			*/
96
97			if (!TAILQ_EMPTY(head))
98			for (p = TAILQ_FIRST(head); p != NULL &&
99			p->id == new_id; p = TAILQ_NEXT(p, entry))
100			new_id = p->id + 1;
101
102			if (new_id > IDVAL_MAX) {
103			errno = ERANGE;
104			return (0);
105			}
106
107			if ((label = calloc(1, sizeof(struct n2id_label))) == NULL)
108			return (0);
109			if ((label->name = strdup(name)) == NULL) {
110			free(label);
111			return (0);
112			}
113			label->id = new_id;
114			label->ref++;
115
116			if (p != NULL) /* insert new entry before p */
117			TAILQ_INSERT_BEFORE(p, label, entry);
118			else /* either list empty or no free slot in between */
119			TAILQ_INSERT_TAIL(head, label, entry);
120
121			return (label->id);
122			}
123
124			const char *
125			_id2name(struct n2id_labels *head, u_int16_t id)
126			{
127			struct n2id_label *label;
128
129			if (id == 0)
130			return ("");
131
132			TAILQ_FOREACH(label, head, entry)
133			if (label->id == id)
134			return (label->name);
135
136			return ("");
137			}
138
139			void
140			_unref(struct n2id_labels *head, u_int16_t id)
141			{
142			struct n2id_label p, next;
143
144			if (id == 0)
145			return;
146
147			for (p = TAILQ_FIRST(head); p != NULL; p = next) {
148			next = TAILQ_NEXT(p, entry);
149			if (id == p->id) {
150			if (--p->ref == 0) {
151			TAILQ_REMOVE(head, p, entry);
152			free(p->name);
153			free(p);
154			}
155			break;
156			}
157			}
158			}
159
160			void
161			_ref(struct n2id_labels *head, u_int16_t id)
162			{
163			struct n2id_label *label;
164
165			if (id == 0)
166			return;
167
168			TAILQ_FOREACH(label, head, entry)
169			if (label->id == id) {
170			++label->ref;
171			break;
172			}
173			}