source: rtems/c/src/lib/libnetworking/libc/ascii2addr.c @ 39e6e65a

4.104.114.84.95
Last change on this file since 39e6e65a was 39e6e65a, checked in by Joel Sherrill <joel.sherrill@…>, on 08/19/98 at 21:32:28

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File size: 2.2 KB
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1/*
2 * Copyright 1996 Massachusetts Institute of Technology
3 *
4 * Permission to use, copy, modify, and distribute this software and
5 * its documentation for any purpose and without fee is hereby
6 * granted, provided that both the above copyright notice and this
7 * permission notice appear in all copies, that both the above
8 * copyright notice and this permission notice appear in all
9 * supporting documentation, and that the name of M.I.T. not be used
10 * in advertising or publicity pertaining to distribution of the
11 * software without specific, written prior permission.  M.I.T. makes
12 * no representations about the suitability of this software for any
13 * purpose.  It is provided "as is" without express or implied
14 * warranty.
15 *
16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *      $ANA: ascii2addr.c,v 1.2 1996/06/13 18:46:02 wollman Exp $
30 */
31
32#include <sys/types.h>
33#include <sys/socket.h>
34
35#include <errno.h>
36#include <string.h>
37
38#include <net/if_dl.h>
39#include <netinet/in.h>
40#include <arpa/inet.h>
41
42int
43ascii2addr(af, ascii, result)
44        int af;
45        const char *ascii;
46        void *result;
47{
48        struct in_addr *ina;
49        char strbuf[4*sizeof("123")]; /* long enough for V4 only */
50
51        switch(af) {
52        case AF_INET:
53                ina = result;
54                strbuf[0] = '\0';
55                strncat(strbuf, ascii, (sizeof strbuf)-1);
56                if (inet_aton(strbuf, ina))
57                        return sizeof(struct in_addr);
58                errno = EINVAL;
59                break;
60
61        case AF_LINK:
62                link_addr(ascii, result);
63                /* oops... no way to detect failure */
64                return sizeof(struct sockaddr_dl);
65
66        default:
67                errno = EPROTONOSUPPORT;
68                break;
69        }
70
71        return -1;
72}
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