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/******************************************************************************
(c) 1999 Steve Whitehouse stevew@ACM.org
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdnet/dn.h>
#include <netdnet/dnetdb.h>
#include <ctype.h>
#include "dn_endian.h"
static int dnet_num(const char *src, u_int16_t * dst)
{
int rv = 0;
int tmp;
*dst = 0;
while ((tmp = *src++) != 0) {
tmp -= '0';
if ((tmp < 0) || (tmp > 9))
return rv;
rv++;
*dst *= 10;
*dst += tmp;
}
return rv;
}
static int dnet_pton1(const char *src, struct dn_naddr *dna)
{
u_int16_t area = 0;
u_int16_t node = 0;
int pos;
pos = dnet_num(src, &area);
if ((pos == 0) || (area > 63) || (*(src + pos) != '.'))
return 0;
pos = dnet_num(src + pos + 1, &node);
if ((pos == 0) || (node > 1023))
return 0;
dna->a_len = 2;
*(u_int16_t *)dna->a_addr = dn_htons((area << 10) | node);
return 1;
}
int dnet_pton(int af, const char *src, void *addr)
{
int err;
switch (af) {
case AF_DECnet:
errno = 0;
err = dnet_pton1(src, (struct dn_naddr *)addr);
break;
default:
errno = EAFNOSUPPORT;
err = -1;
}
return err;
}
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