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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [libc/] [ascii2addr.c] - Blame information for rev 173

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1 30 unneback
/*
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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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 *  $Id: ascii2addr.c,v 1.2 2001-09-27 12:01:53 chris 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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                strbuf[0] = '\0';
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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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