minix/lib/ip/ethera2n.c

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2005-04-21 16:53:53 +02:00
/*
ethera2n.c
Convert an ASCII string with an ethernet address into a struct ether_addr.
Created: Nov 17, 1992 by Philip Homburg
*/
#include <sys/types.h>
#include <stdlib.h>
#include <net/netlib.h>
#include <net/gen/ether.h>
#include <net/gen/if_ether.h>
struct ether_addr *ether_aton(s)
_CONST char *s;
{
static struct ether_addr ea;
int i;
long v;
char *check;
if (s == NULL)
return NULL;
for (i=0; i<6; i++)
{
v= strtol(s, &check, 16);
if (v<0 || v>255)
return NULL;
if ((i<5 && check[0] != ':') || (i == 5 && check[0] != '\0'))
return NULL;
ea.ea_addr[i]= v;
s= check+1;
}
return &ea;
}
/*
* $PchId: ethera2n.c,v 1.3 1996/02/22 21:10:01 philip Exp $
*/