110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/* $NetBSD: ns_ntoa.c,v 1.8 1998/11/13 15:46:55 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1986, 1993
|
|
* The 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
#if 0
|
|
static char sccsid[] = "@(#)ns_ntoa.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
__RCSID("$NetBSD: ns_ntoa.c,v 1.8 1998/11/13 15:46:55 christos Exp $");
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <netns/ns.h>
|
|
#include <stdio.h>
|
|
|
|
static char *spectHex __P((char *));
|
|
|
|
char *
|
|
ns_ntoa(addr)
|
|
struct ns_addr addr;
|
|
{
|
|
static char obuf[40];
|
|
union { union ns_net net_e; u_int32_t long_e; } net;
|
|
u_int16_t port = htons(addr.x_port);
|
|
register char *cp;
|
|
char *cp2;
|
|
register u_int8_t *up = addr.x_host.c_host;
|
|
u_int8_t *uplim = up + 6;
|
|
|
|
net.net_e = addr.x_net;
|
|
sprintf(obuf, "%x", ntohl(net.long_e));
|
|
cp = spectHex(obuf);
|
|
cp2 = cp + 1;
|
|
while (*up==0 && up < uplim) up++;
|
|
if (up == uplim) {
|
|
if (port) {
|
|
sprintf(cp, ".0");
|
|
cp += 2;
|
|
}
|
|
} else {
|
|
sprintf(cp, ".%x", *up++);
|
|
while (up < uplim) {
|
|
while (*cp) cp++;
|
|
sprintf(cp, "%02x", *up++);
|
|
}
|
|
cp = spectHex(cp2);
|
|
}
|
|
if (port) {
|
|
sprintf(cp, ".%x", port);
|
|
spectHex(cp + 1);
|
|
}
|
|
return (obuf);
|
|
}
|
|
|
|
static char *
|
|
spectHex(p0)
|
|
char *p0;
|
|
{
|
|
int ok = 0;
|
|
int nonzero = 0;
|
|
register char *p = p0;
|
|
for (; *p; p++)
|
|
switch (*p) {
|
|
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
|
|
*p += ('A' - 'a');
|
|
/* FALLTHROUGH */
|
|
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
|
|
ok = 1;
|
|
/* FALLTHROUGH */
|
|
case '1': case '2': case '3': case '4': case '5':
|
|
case '6': case '7': case '8': case '9':
|
|
nonzero = 1;
|
|
}
|
|
if (nonzero && !ok) { *p++ = 'H'; *p = 0; }
|
|
return (p);
|
|
}
|