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File: [cvs.NetBSD.org] / src / lib / libc / compat / net / compat_ns_ntoa.c (download)

Revision 1.1, Sat Aug 26 16:07:01 2006 UTC (14 years, 7 months ago) by matt
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-devfs2-base, mjf-devfs2, matt-premerge-20091211, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-base, keiichi-mipv6, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, christos-time_t-nbase, christos-time_t-base, christos-time_t, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Branch point for: yamt-pagecache

Move ns_addr and ns_ntoa to compat libc.  Add a stripped version of
<netns/ns.h> which only include struct ns_addr and the ns_addr and ns_ntoa
function prototypes.

/*	$NetBSD: compat_ns_ntoa.c,v 1.1 2006/08/26 16:07:01 matt 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. 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: compat_ns_ntoa.c,v 1.1 2006/08/26 16:07:01 matt Exp $");
#endif
#endif /* LIBC_SCCS and not lint */

#include <sys/param.h>
#include <compat/include/ns.h>

#include <assert.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);
	char *cp;
	char *cp2;
	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 < uplim && *up==0)
		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;
	char *p = p0;

	_DIAGASSERT(p0 != NULL);

	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);
}