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 | |
---|
42 | int |
---|
43 | ascii2addr(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 | } |
---|