121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 1989 Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
/*static char *sccsid = "from: @(#)iso_addr.c 5.4 (Berkeley) 2/24/91";*/
|
|
static char *rcsid = "$Id: iso_addr.c,v 1.3 1993/08/26 00:46:08 jtc Exp $";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <netiso/iso.h>
|
|
#include <string.h>
|
|
|
|
/* States*/
|
|
#define VIRGIN 0
|
|
#define GOTONE 1
|
|
#define GOTTWO 2
|
|
/* Inputs */
|
|
#define DIGIT (4*0)
|
|
#define END (4*1)
|
|
#define DELIM (4*2)
|
|
|
|
struct iso_addr *
|
|
iso_addr(addr)
|
|
register const char *addr;
|
|
{
|
|
static struct iso_addr out_addr;
|
|
register char *cp = out_addr.isoa_genaddr;
|
|
char *cplim = cp + sizeof(out_addr.isoa_genaddr);
|
|
register int byte = 0, state = VIRGIN, new;
|
|
|
|
bzero((char *)&out_addr, sizeof(out_addr));
|
|
do {
|
|
if ((*addr >= '0') && (*addr <= '9')) {
|
|
new = *addr - '0';
|
|
} else if ((*addr >= 'a') && (*addr <= 'f')) {
|
|
new = *addr - 'a' + 10;
|
|
} else if ((*addr >= 'A') && (*addr <= 'F')) {
|
|
new = *addr - 'A' + 10;
|
|
} else if (*addr == 0)
|
|
state |= END;
|
|
else
|
|
state |= DELIM;
|
|
addr++;
|
|
switch (state /* | INPUT */) {
|
|
case GOTTWO | DIGIT:
|
|
*cp++ = byte; /*FALLTHROUGH*/
|
|
case VIRGIN | DIGIT:
|
|
state = GOTONE; byte = new; continue;
|
|
case GOTONE | DIGIT:
|
|
state = GOTTWO; byte = new + (byte << 4); continue;
|
|
default: /* | DELIM */
|
|
state = VIRGIN; *cp++ = byte; byte = 0; continue;
|
|
case GOTONE | END:
|
|
case GOTTWO | END:
|
|
*cp++ = byte; /* FALLTHROUGH */
|
|
case VIRGIN | END:
|
|
break;
|
|
}
|
|
break;
|
|
} while (cp < cplim);
|
|
out_addr.isoa_len = cp - out_addr.isoa_genaddr;
|
|
return (&out_addr);
|
|
}
|
|
static char hexlist[] = "0123456789abcdef";
|
|
|
|
char *
|
|
iso_ntoa(isoa)
|
|
const struct iso_addr *isoa;
|
|
{
|
|
static char obuf[64];
|
|
register char *out = obuf;
|
|
register int i;
|
|
register u_char *in = (u_char *)isoa->isoa_genaddr;
|
|
u_char *inlim = in + isoa->isoa_len;
|
|
|
|
out[1] = 0;
|
|
while (in < inlim) {
|
|
i = *in++;
|
|
*out++ = '.';
|
|
if (i > 0xf) {
|
|
out[1] = hexlist[i & 0xf];
|
|
i >>= 4;
|
|
out[0] = hexlist[i];
|
|
out += 2;
|
|
} else
|
|
*out++ = hexlist[i];
|
|
}
|
|
*out = 0;
|
|
return(obuf + 1);
|
|
}
|