Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libpcap/etherent.c	Lines:	0	49	0.0 %
Date:	2017-11-07	Branches:	0	58	0.0 %


/*	$OpenBSD: etherent.c,v 1.9 2015/11/17 21:39:23 mmcc Exp $	*/

/*
 * Copyright (c) 1990, 1993, 1994, 1995, 1996
 *	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: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include <sys/types.h>

#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include "pcap-int.h"

#include <pcap-namedb.h>
#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif

static __inline int xdtoi(int);
static __inline int skip_space(FILE *);
static __inline int skip_line(FILE *);

/* Hex digit to integer. */
static __inline int
xdtoi(c)
	int c;
{
	if (isdigit(c))
		return c - '0';
	else if (islower(c))
		return c - 'a' + 10;
	else
		return c - 'A' + 10;
}

static __inline int
skip_space(f)
	FILE *f;
{
	int c;

	do {
		c = getc(f);
	} while (isspace(c) && c != '\n');

	return c;
}

static __inline int
skip_line(f)
	FILE *f;
{
	int c;

	do
		c = getc(f);
	while (c != '\n' && c != EOF);

	return c;
}

struct pcap_etherent *
pcap_next_etherent(FILE *fp)
{
	int c, d, i;
	char *bp;
	static struct pcap_etherent e;

	memset((char *)&e, 0, sizeof(e));
	do {
		/* Find addr */
		c = skip_space(fp);
		if (c == '\n')
			continue;

		/* If this is a comment, or first thing on line
		   cannot be etehrnet address, skip the line. */
		if (!isxdigit(c)) {
			c = skip_line(fp);
			continue;
		}

		/* must be the start of an address */
		for (i = 0; i < 6; i += 1) {
			d = xdtoi(c);
			c = getc(fp);
			if (isxdigit(c)) {
				d <<= 4;
				d |= xdtoi(c);
				c = getc(fp);
			}
			e.addr[i] = d;
			if (c != ':')
				break;
			c = getc(fp);
		}
		if (c == EOF)
			break;

		/* Must be whitespace */
		if (!isspace(c)) {
			c = skip_line(fp);
			continue;
		}
		c = skip_space(fp);

		/* hit end of line... */
		if (c == '\n')
			continue;

		if (c == '#') {
			c = skip_line(fp);
			continue;
		}

		/* pick up name */
		bp = e.name;
		/* Use 'd' to prevent buffer overflow. */
		d = sizeof(e.name) - 1;
		do {
			*bp++ = c;
			c = getc(fp);
		} while (!isspace(c) && c != EOF && --d > 0);
		*bp = '\0';

		/* Eat trailing junk */
		if (c != '\n')
			(void)skip_line(fp);

		return &e;

	} while (c != EOF);

	return (NULL);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: etherent.c,v 1.9 2015/11/17 21:39:23 mmcc Exp $ */
2
3			/*
4			* Copyright (c) 1990, 1993, 1994, 1995, 1996
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that: (1) source code distributions
9			* retain the above copyright notice and this paragraph in its entirety, (2)
10			* distributions including binary code include the above copyright notice and
11			* this paragraph in its entirety in the documentation or other materials
12			* provided with the distribution, and (3) all advertising materials mentioning
13			* features or use of this software display the following acknowledgement:
14			* ``This product includes software developed by the University of California,
15			* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16			* the University nor the names of its contributors may be used to endorse
17			* or promote products derived from this software without specific prior
18			* written permission.
19			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20			* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21			* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22			*/
23
24			#include <sys/types.h>
25
26			#include <ctype.h>
27			#include <stdio.h>
28			#include <string.h>
29
30			#include "pcap-int.h"
31
32			#include <pcap-namedb.h>
33			#ifdef HAVE_OS_PROTO_H
34			#include "os-proto.h"
35			#endif
36
37			static __inline int xdtoi(int);
38			static __inline int skip_space(FILE *);
39			static __inline int skip_line(FILE *);
40
41			/* Hex digit to integer. */
42			static __inline int
43			xdtoi(c)
44			int c;
45			{
46			if (isdigit(c))
47			return c - '0';
48			else if (islower(c))
49			return c - 'a' + 10;
50			else
51			return c - 'A' + 10;
52			}
53
54			static __inline int
55			skip_space(f)
56			FILE *f;
57			{
58			int c;
59
60			do {
61			c = getc(f);
62			} while (isspace(c) && c != '\n');
63
64			return c;
65			}
66
67			static __inline int
68			skip_line(f)
69			FILE *f;
70			{
71			int c;
72
73			do
74			c = getc(f);
75			while (c != '\n' && c != EOF);
76
77			return c;
78			}
79
80			struct pcap_etherent *
81			pcap_next_etherent(FILE *fp)
82			{
83			int c, d, i;
84			char *bp;
85			static struct pcap_etherent e;
86
87			memset((char *)&e, 0, sizeof(e));
88			do {
89			/* Find addr */
90			c = skip_space(fp);
91			if (c == '\n')
92			continue;
93
94			/* If this is a comment, or first thing on line
95			cannot be etehrnet address, skip the line. */
96			if (!isxdigit(c)) {
97			c = skip_line(fp);
98			continue;
99			}
100
101			/* must be the start of an address */
102			for (i = 0; i < 6; i += 1) {
103			d = xdtoi(c);
104			c = getc(fp);
105			if (isxdigit(c)) {
106			d <<= 4;
107			d \|= xdtoi(c);
108			c = getc(fp);
109			}
110			e.addr[i] = d;
111			if (c != ':')
112			break;
113			c = getc(fp);
114			}
115			if (c == EOF)
116			break;
117
118			/* Must be whitespace */
119			if (!isspace(c)) {
120			c = skip_line(fp);
121			continue;
122			}
123			c = skip_space(fp);
124
125			/* hit end of line... */
126			if (c == '\n')
127			continue;
128
129			if (c == '#') {
130			c = skip_line(fp);
131			continue;
132			}
133
134			/* pick up name */
135			bp = e.name;
136			/* Use 'd' to prevent buffer overflow. */
137			d = sizeof(e.name) - 1;
138			do {
139			*bp++ = c;
140			c = getc(fp);
141			} while (!isspace(c) && c != EOF && --d > 0);
142			*bp = '\0';
143
144			/* Eat trailing junk */
145			if (c != '\n')
146			(void)skip_line(fp);
147
148			return &e;
149
150			} while (c != EOF);
151
152			return (NULL);
153			}