72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
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/*
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* Copyright 1996 Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $ANA: ascii2addr.c,v 1.2 1996/06/13 18:46:02 wollman Exp $
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <string.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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int
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ascii2addr(af, ascii, result)
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int af;
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const char *ascii;
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void *result;
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{
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struct in_addr *ina;
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char strbuf[4*sizeof("123")]; /* long enough for V4 only */
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switch(af) {
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case AF_INET:
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ina = result;
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strncat(strbuf, ascii, (sizeof strbuf)-1);
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if (inet_aton(strbuf, ina))
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return sizeof(struct in_addr);
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errno = EINVAL;
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break;
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case AF_LINK:
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link_addr(ascii, result);
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/* oops... no way to detect failure */
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return sizeof(struct sockaddr_dl);
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default:
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errno = EPROTONOSUPPORT;
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break;
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}
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return -1;
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}
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