eui64_aton.c
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1 /*
2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
3  *
4  * Squid software is distributed under GPLv2+ license and includes
5  * contributions from numerous individuals and organizations.
6  * Please see the COPYING and CONTRIBUTORS files for details.
7  */
8 
9 /*
10  * Squid Change History:
11  *
12  * 2009-10-16 : import eui64_aton() function from NetBSD eui64.c
13  */
14 
15 /* $NetBSD: eui64.c,v 1.1 2005/07/11 15:35:25 kiyohara Exp $ */
16 /*
17  * Copyright 2004 The Aerospace Corporation. All rights reserved.
18  *
19  * Redistribution and use in source and binary forms, with or without
20  * modification, are permitted provided that the following conditions
21  * are met:
22  *
23  * 1. Redistributions of source code must retain the above copyright
24  * notice, this list of conditions, and the following disclaimer.
25  * 2. Redistributions in binary form must reproduce the above copyright
26  * notice, this list of conditions, and the following disclaimer in the
27  * documentation and/or other materials provided with the distribution.
28  * 3. The name of The Aerospace Corporation may not be used to endorse or
29  * promote products derived from this software.
30  *
31  * THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION "AS IS" AND
32  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34  * ARE DISCLAIMED. IN NO EVENT SHALL THE AEROSPACE CORPORATION BE LIABLE
35  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41  * SUCH DAMAGE.
42  *
43  * Copyright (c) 1995
44  * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
45  *
46  * Redistribution and use in source and binary forms, with or without
47  * modification, are permitted provided that the following conditions
48  * are met:
49  * 1. Redistributions of source code must retain the above copyright
50  * notice, this list of conditions and the following disclaimer.
51  * 2. Redistributions in binary form must reproduce the above copyright
52  * notice, this list of conditions and the following disclaimer in the
53  * documentation and/or other materials provided with the distribution.
54  * 3. All advertising materials mentioning features or use of this software
55  * must display the following acknowledgement:
56  * This product includes software developed by Bill Paul.
57  * 4. Neither the name of the author nor the names of any co-contributors
58  * may be used to endorse or promote products derived from this software
59  * without specific prior written permission.
60  *
61  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71  * SUCH DAMAGE.
72  *
73  * EUI-64 conversion and lookup routines
74  *
75  *
76  * Converted from ether_addr.c rev
77  * FreeBSD: src/lib/libc/net/eui64.c,v 1.15 2002/04/08 07:51:10 ru Exp
78  * by Brooks Davis
79  *
80  * Written by Bill Paul <wpaul@ctr.columbia.edu>
81  * Center for Telecommunications Research
82  * Columbia University, New York City
83  */
84 
85 #include "squid.h"
86 #include "compat/eui64_aton.h"
87 
88 #if SQUID_EUI64_ATON
89 
90 /*
91  * Convert an ASCII representation of an EUI-64 to binary form.
92  */
93 int
94 eui64_aton(const char *a, struct eui64 *e)
95 {
96  int i;
97  unsigned int o0, o1, o2, o3, o4, o5, o6, o7;
98 
99  /* canonical form */
100  i = sscanf(a, "%x-%x-%x-%x-%x-%x-%x-%x",
101  &o0, &o1, &o2, &o3, &o4, &o5, &o6, &o7);
102  if (i == EUI64_LEN)
103  goto good;
104  /* ethernet form */
105  i = sscanf(a, "%x:%x:%x:%x:%x:%x:%x:%x",
106  &o0, &o1, &o2, &o3, &o4, &o5, &o6, &o7);
107  if (i == EUI64_LEN)
108  goto good;
109  /* classic fwcontrol/dconschat form */
110  i = sscanf(a, "0x%2x%2x%2x%2x%2x%2x%2x%2x",
111  &o0, &o1, &o2, &o3, &o4, &o5, &o6, &o7);
112  if (i == EUI64_LEN)
113  goto good;
114  /* MAC format (-) */
115  i = sscanf(a, "%x-%x-%x-%x-%x-%x",
116  &o0, &o1, &o2, &o5, &o6, &o7);
117  if (i == 6) {
118  o3 = 0xff;
119  o4 = 0xfe;
120  goto good;
121  }
122  /* MAC format (:) */
123  i = sscanf(a, "%x:%x:%x:%x:%x:%x",
124  &o0, &o1, &o2, &o5, &o6, &o7);
125  if (i == 6) {
126  o3 = 0xff;
127  o4 = 0xfe;
128  goto good;
129  }
130 
131  return (-1);
132 
133 good:
134  e->octet[0]=o0;
135  e->octet[1]=o1;
136  e->octet[2]=o2;
137  e->octet[3]=o3;
138  e->octet[4]=o4;
139  e->octet[5]=o5;
140  e->octet[6]=o6;
141  e->octet[7]=o7;
142 
143  return (0);
144 }
145 
146 #endif /* !SQUID_EUI64_ATON */
147 
eui64::octet
uint8_t octet[EUI64_LEN]
Definition: eui64_aton.h:76
eui64_aton
int eui64_aton(const char *a, struct eui64 *e)
Definition: eui64_aton.c:94
EUI64_LEN
#define EUI64_LEN
Definition: eui64_aton.h:70
eui64_aton.h

 

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