ipx_ntoa.c revision 129667 
1/*
2 * Copyright (c) 1986, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/lib/libipx/ipx_ntoa.c 129667 2004-05-24 16:48:53Z stefanf $");
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)ipx_ntoa.c";
39#endif /* LIBC_SCCS and not lint */
40
41#include <sys/param.h>
42#include <arpa/inet.h>
43#include <netipx/ipx.h>
44#include <stdio.h>
45
46static char *spectHex(char *);
47
48char *
49ipx_ntoa(addr)
50	struct ipx_addr addr;
51{
52	static char obuf[40];
53	union { union ipx_net net_e; u_long long_e; } net;
54	u_short port = htons(addr.x_port);
55	char *cp;
56	char *cp2;
57	u_char *up = addr.x_host.c_host;
58	u_char *uplim = up + 6;
59
60	net.net_e = addr.x_net;
61	sprintf(obuf, "%lx", (u_long)ntohl(net.long_e));
62	cp = spectHex(obuf);
63	cp2 = cp + 1;
64	while (*up==0 && up < uplim) up++;
65	if (up == uplim) {
66		if (port) {
67			sprintf(cp, ".0");
68			cp += 2;
69		}
70	} else {
71		sprintf(cp, ".%x", *up++);
72		while (up < uplim) {
73			while (*cp) cp++;
74			sprintf(cp, "%02x", *up++);
75		}
76		cp = spectHex(cp2);
77	}
78	if (port) {
79		sprintf(cp, ".%x", port);
80		spectHex(cp + 1);
81	}
82	return (obuf);
83}
84
85static char *
86spectHex(p0)
87	char *p0;
88{
89	int ok = 0;
90	int nonzero = 0;
91	char *p = p0;
92	for (; *p; p++) switch (*p) {
93
94	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
95	case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
96		ok = 1;
97	case '1': case '2': case '3': case '4': case '5':
98	case '6': case '7': case '8': case '9':
99		nonzero = 1;
100	}
101	if (nonzero && !ok) { *p++ = 'H'; *p = 0; }
102	return (p);
103}
104