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-rw-r--r--contrib/bind9/lib/isc/netaddr.c436
1 files changed, 0 insertions, 436 deletions
diff --git a/contrib/bind9/lib/isc/netaddr.c b/contrib/bind9/lib/isc/netaddr.c
deleted file mode 100644
index e56e05b..0000000
--- a/contrib/bind9/lib/isc/netaddr.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/*
- * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1999-2002 Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: netaddr.c,v 1.27.18.8 2005/04/27 05:02:03 sra Exp $ */
-
-/*! \file */
-
-#include <config.h>
-
-#include <stdio.h>
-
-#include <isc/buffer.h>
-#include <isc/msgs.h>
-#include <isc/net.h>
-#include <isc/netaddr.h>
-#include <isc/print.h>
-#include <isc/sockaddr.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-isc_boolean_t
-isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b) {
- REQUIRE(a != NULL && b != NULL);
-
- if (a->family != b->family)
- return (ISC_FALSE);
-
- if (a->zone != b->zone)
- return (ISC_FALSE);
-
- switch (a->family) {
- case AF_INET:
- if (a->type.in.s_addr != b->type.in.s_addr)
- return (ISC_FALSE);
- break;
- case AF_INET6:
- if (memcmp(&a->type.in6, &b->type.in6,
- sizeof(a->type.in6)) != 0 ||
- a->zone != b->zone)
- return (ISC_FALSE);
- break;
-#ifdef ISC_PLATFORM_HAVESYSUNH
- case AF_UNIX:
- if (strcmp(a->type.un, b->type.un) != 0)
- return (ISC_FALSE);
- break;
-#endif
- default:
- return (ISC_FALSE);
- }
- return (ISC_TRUE);
-}
-
-isc_boolean_t
-isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
- unsigned int prefixlen)
-{
- const unsigned char *pa, *pb;
- unsigned int ipabytes; /* Length of whole IP address in bytes */
- unsigned int nbytes; /* Number of significant whole bytes */
- unsigned int nbits; /* Number of significant leftover bits */
-
- REQUIRE(a != NULL && b != NULL);
-
- if (a->family != b->family)
- return (ISC_FALSE);
-
- if (a->zone != b->zone)
- return (ISC_FALSE);
-
- switch (a->family) {
- case AF_INET:
- pa = (const unsigned char *) &a->type.in;
- pb = (const unsigned char *) &b->type.in;
- ipabytes = 4;
- break;
- case AF_INET6:
- pa = (const unsigned char *) &a->type.in6;
- pb = (const unsigned char *) &b->type.in6;
- ipabytes = 16;
- break;
- default:
- pa = pb = NULL; /* Avoid silly compiler warning. */
- ipabytes = 0; /* Ditto. */
- return (ISC_FALSE);
- }
-
- /*
- * Don't crash if we get a pattern like 10.0.0.1/9999999.
- */
- if (prefixlen > ipabytes * 8)
- prefixlen = ipabytes * 8;
-
- nbytes = prefixlen / 8;
- nbits = prefixlen % 8;
-
- if (nbytes > 0) {
- if (memcmp(pa, pb, nbytes) != 0)
- return (ISC_FALSE);
- }
- if (nbits > 0) {
- unsigned int bytea, byteb, mask;
- INSIST(nbytes < ipabytes);
- INSIST(nbits < 8);
- bytea = pa[nbytes];
- byteb = pb[nbytes];
- mask = (0xFF << (8-nbits)) & 0xFF;
- if ((bytea & mask) != (byteb & mask))
- return (ISC_FALSE);
- }
- return (ISC_TRUE);
-}
-
-isc_result_t
-isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target) {
- char abuf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255")];
- char zbuf[sizeof("%4294967295")];
- unsigned int alen;
- int zlen;
- const char *r;
- const void *type;
-
- REQUIRE(netaddr != NULL);
-
- switch (netaddr->family) {
- case AF_INET:
- type = &netaddr->type.in;
- break;
- case AF_INET6:
- type = &netaddr->type.in6;
- break;
-#ifdef ISC_PLATFORM_HAVESYSUNH
- case AF_UNIX:
- alen = strlen(netaddr->type.un);
- if (alen > isc_buffer_availablelength(target))
- return (ISC_R_NOSPACE);
- isc_buffer_putmem(target,
- (const unsigned char *)(netaddr->type.un),
- alen);
- return (ISC_R_SUCCESS);
-#endif
- default:
- return (ISC_R_FAILURE);
- }
- r = inet_ntop(netaddr->family, type, abuf, sizeof(abuf));
- if (r == NULL)
- return (ISC_R_FAILURE);
-
- alen = strlen(abuf);
- INSIST(alen < sizeof(abuf));
-
- zlen = 0;
- if (netaddr->family == AF_INET6 && netaddr->zone != 0) {
- zlen = snprintf(zbuf, sizeof(zbuf), "%%%u", netaddr->zone);
- if (zlen < 0)
- return (ISC_R_FAILURE);
- INSIST((unsigned int)zlen < sizeof(zbuf));
- }
-
- if (alen + zlen > isc_buffer_availablelength(target))
- return (ISC_R_NOSPACE);
-
- isc_buffer_putmem(target, (unsigned char *)abuf, alen);
- isc_buffer_putmem(target, (unsigned char *)zbuf, zlen);
-
- return (ISC_R_SUCCESS);
-}
-
-void
-isc_netaddr_format(const isc_netaddr_t *na, char *array, unsigned int size) {
- isc_result_t result;
- isc_buffer_t buf;
-
- isc_buffer_init(&buf, array, size);
- result = isc_netaddr_totext(na, &buf);
-
- /*
- * Null terminate.
- */
- if (result == ISC_R_SUCCESS) {
- if (isc_buffer_availablelength(&buf) >= 1)
- isc_buffer_putuint8(&buf, 0);
- else
- result = ISC_R_NOSPACE;
- }
-
- if (result != ISC_R_SUCCESS) {
- snprintf(array, size,
- isc_msgcat_get(isc_msgcat, ISC_MSGSET_NETADDR,
- ISC_MSG_UNKNOWNADDR,
- "<unknown address, family %u>"),
- na->family);
- array[size - 1] = '\0';
- }
-}
-
-
-isc_result_t
-isc_netaddr_prefixok(const isc_netaddr_t *na, unsigned int prefixlen) {
- static const unsigned char zeros[16];
- unsigned int nbits, nbytes, ipbytes;
- const unsigned char *p;
-
- switch (na->family) {
- case AF_INET:
- p = (const unsigned char *) &na->type.in;
- ipbytes = 4;
- if (prefixlen > 32)
- return (ISC_R_RANGE);
- break;
- case AF_INET6:
- p = (const unsigned char *) &na->type.in6;
- ipbytes = 16;
- if (prefixlen > 128)
- return (ISC_R_RANGE);
- break;
- default:
- ipbytes = 0;
- return (ISC_R_NOTIMPLEMENTED);
- }
- nbytes = prefixlen / 8;
- nbits = prefixlen % 8;
- if (nbits != 0) {
- if ((p[nbytes] & (0xff>>nbits)) != 0U)
- return (ISC_R_FAILURE);
- nbytes++;
- }
- if (memcmp(p + nbytes, zeros, ipbytes - nbytes) != 0)
- return (ISC_R_FAILURE);
- return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp) {
- unsigned int nbits, nbytes, ipbytes, i;
- const unsigned char *p;
-
- switch (s->family) {
- case AF_INET:
- p = (const unsigned char *) &s->type.in;
- ipbytes = 4;
- break;
- case AF_INET6:
- p = (const unsigned char *) &s->type.in6;
- ipbytes = 16;
- break;
- default:
- ipbytes = 0;
- return (ISC_R_NOTIMPLEMENTED);
- }
- nbytes = nbits = 0;
- for (i = 0; i < ipbytes; i++) {
- if (p[i] != 0xFF)
- break;
- }
- nbytes = i;
- if (i < ipbytes) {
- unsigned int c = p[nbytes];
- while ((c & 0x80) != 0 && nbits < 8) {
- c <<= 1; nbits++;
- }
- if ((c & 0xFF) != 0)
- return (ISC_R_MASKNONCONTIG);
- i++;
- }
- for (; i < ipbytes; i++) {
- if (p[i] != 0)
- return (ISC_R_MASKNONCONTIG);
- i++;
- }
- *lenp = nbytes * 8 + nbits;
- return (ISC_R_SUCCESS);
-}
-
-void
-isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina) {
- memset(netaddr, 0, sizeof(*netaddr));
- netaddr->family = AF_INET;
- netaddr->type.in = *ina;
-}
-
-void
-isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6) {
- memset(netaddr, 0, sizeof(*netaddr));
- netaddr->family = AF_INET6;
- netaddr->type.in6 = *ina6;
-}
-
-isc_result_t
-isc_netaddr_frompath(isc_netaddr_t *netaddr, const char *path) {
-#ifdef ISC_PLATFORM_HAVESYSUNH
- if (strlen(path) > sizeof(netaddr->type.un) - 1)
- return (ISC_R_NOSPACE);
-
- memset(netaddr, 0, sizeof(*netaddr));
- netaddr->family = AF_UNIX;
- strcpy(netaddr->type.un, path);
- netaddr->zone = 0;
- return (ISC_R_SUCCESS);
-#else
- UNUSED(netaddr);
- UNUSED(path);
- return (ISC_R_NOTIMPLEMENTED);
-#endif
-}
-
-
-void
-isc_netaddr_setzone(isc_netaddr_t *netaddr, isc_uint32_t zone) {
- /* we currently only support AF_INET6. */
- REQUIRE(netaddr->family == AF_INET6);
-
- netaddr->zone = zone;
-}
-
-isc_uint32_t
-isc_netaddr_getzone(const isc_netaddr_t *netaddr) {
- return (netaddr->zone);
-}
-
-void
-isc_netaddr_fromsockaddr(isc_netaddr_t *t, const isc_sockaddr_t *s) {
- int family = s->type.sa.sa_family;
- t->family = family;
- switch (family) {
- case AF_INET:
- t->type.in = s->type.sin.sin_addr;
- t->zone = 0;
- break;
- case AF_INET6:
- memcpy(&t->type.in6, &s->type.sin6.sin6_addr, 16);
-#ifdef ISC_PLATFORM_HAVESCOPEID
- t->zone = s->type.sin6.sin6_scope_id;
-#else
- t->zone = 0;
-#endif
- break;
-#ifdef ISC_PLATFORM_HAVESYSUNH
- case AF_UNIX:
- memcpy(t->type.un, s->type.sunix.sun_path, sizeof(t->type.un));
- t->zone = 0;
- break;
-#endif
- default:
- INSIST(0);
- }
-}
-
-void
-isc_netaddr_any(isc_netaddr_t *netaddr) {
- memset(netaddr, 0, sizeof(*netaddr));
- netaddr->family = AF_INET;
- netaddr->type.in.s_addr = INADDR_ANY;
-}
-
-void
-isc_netaddr_any6(isc_netaddr_t *netaddr) {
- memset(netaddr, 0, sizeof(*netaddr));
- netaddr->family = AF_INET6;
- netaddr->type.in6 = in6addr_any;
-}
-
-isc_boolean_t
-isc_netaddr_ismulticast(isc_netaddr_t *na) {
- switch (na->family) {
- case AF_INET:
- return (ISC_TF(ISC_IPADDR_ISMULTICAST(na->type.in.s_addr)));
- case AF_INET6:
- return (ISC_TF(IN6_IS_ADDR_MULTICAST(&na->type.in6)));
- default:
- return (ISC_FALSE); /* XXXMLG ? */
- }
-}
-
-isc_boolean_t
-isc_netaddr_isexperimental(isc_netaddr_t *na) {
- switch (na->family) {
- case AF_INET:
- return (ISC_TF(ISC_IPADDR_ISEXPERIMENTAL(na->type.in.s_addr)));
- default:
- return (ISC_FALSE); /* XXXMLG ? */
- }
-}
-
-isc_boolean_t
-isc_netaddr_islinklocal(isc_netaddr_t *na) {
- switch (na->family) {
- case AF_INET:
- return (ISC_FALSE);
- case AF_INET6:
- return (ISC_TF(IN6_IS_ADDR_LINKLOCAL(&na->type.in6)));
- default:
- return (ISC_FALSE);
- }
-}
-
-isc_boolean_t
-isc_netaddr_issitelocal(isc_netaddr_t *na) {
- switch (na->family) {
- case AF_INET:
- return (ISC_FALSE);
- case AF_INET6:
- return (ISC_TF(IN6_IS_ADDR_SITELOCAL(&na->type.in6)));
- default:
- return (ISC_FALSE);
- }
-}
-
-void
-isc_netaddr_fromv4mapped(isc_netaddr_t *t, const isc_netaddr_t *s) {
- isc_netaddr_t *src;
-
- DE_CONST(s, src); /* Must come before IN6_IS_ADDR_V4MAPPED. */
-
- REQUIRE(s->family == AF_INET6);
- REQUIRE(IN6_IS_ADDR_V4MAPPED(&src->type.in6));
-
- memset(t, 0, sizeof(*t));
- t->family = AF_INET;
- memcpy(&t->type.in, (char *)&src->type.in6 + 12, 4);
- return;
-}
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