[BACK]Return to inet6_scopeid.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / lib / libc / net

File: [cvs.NetBSD.org] / src / lib / libc / net / inet6_scopeid.c (download)

Revision 1.3, Mon Dec 14 03:49:54 2015 UTC (8 years, 3 months ago) by ozaki-r
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-10-base, netbsd-10-0-RELEASE, netbsd-10-0-RC6, netbsd-10-0-RC5, netbsd-10-0-RC4, netbsd-10-0-RC3, netbsd-10-0-RC2, netbsd-10-0-RC1, netbsd-10, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, is-mlppp-base, is-mlppp, cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, HEAD
Changes since 1.2: +2 -2 lines

KNF

/*-
 * Copyright (c) 2003 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Christos Zoulas.
 *
 * 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 NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__RCSID("$NetBSD: inet6_scopeid.c,v 1.3 2015/12/14 03:49:54 ozaki-r Exp $");

#include <sys/endian.h>
#include <string.h>
#include <stdint.h>
#include <netinet/in.h>
#include <netinet6/in6.h>

/* KAME idiosyncrasy */
void
inet6_getscopeid(struct sockaddr_in6 *sin6, int flags)
{
#if defined(__KAME__)
	if ((IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_LINKLOCAL)) ||
	    (IN6_IS_ADDR_MC_LINKLOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_MC_LINKLOCAL)) ||
	    (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_SITELOCAL))) {
		uint16_t scope;
		memcpy(&scope, &sin6->sin6_addr.s6_addr[2], sizeof(scope));
		sin6->sin6_scope_id = ntohs(scope);
		sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
	}
#endif
}

void
inet6_putscopeid(struct sockaddr_in6 *sin6, int flags)
{
#if defined(__KAME__)
	if ((IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_LINKLOCAL)) ||
	    (IN6_IS_ADDR_MC_LINKLOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_MC_LINKLOCAL)) ||
	    (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr) &&
	    (flags & INET6_IS_ADDR_SITELOCAL))) {
		uint16_t scope = htons(sin6->sin6_scope_id);
		memcpy(&sin6->sin6_addr.s6_addr[2], &scope, sizeof(scope));
		sin6->sin6_scope_id = 0;
	}
#endif
}