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1745. [bug] Dig/host/nslookup accept replies from link locals

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regardless of scope if no scope was specified when
                        query was sent. [RT #12745]
This commit is contained in:
Mark Andrews
2004-11-22 23:29:10 +00:00
parent b9f6bf5fdf
commit c1807114ce
4 changed files with 62 additions and 41 deletions
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70
lib/isc/sockaddr.c
View File

@@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: sockaddr.c,v 1.60 2004/05/15 03:37:33 jinmei Exp $ */
/* $Id: sockaddr.c,v 1.61 2004/11/22 23:29:10 marka Exp $ */
#include <config.h>
@@ -33,6 +33,21 @@
isc_boolean_t
isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
return (isc_sockaddr_compare(a, b, ISC_SOCKADDR_CMPADDR|
ISC_SOCKADDR_CMPPORT|
ISC_SOCKADDR_CMPSCOPE));
}
isc_boolean_t
isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
return (isc_sockaddr_compare(a, b, ISC_SOCKADDR_CMPADDR|
ISC_SOCKADDR_CMPSCOPE));
}
isc_boolean_t
isc_sockaddr_compare(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
unsigned int flags)
{
REQUIRE(a != NULL && b != NULL);
if (a->length != b->length)
@@ -47,21 +62,33 @@ isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
return (ISC_FALSE);
switch (a->type.sa.sa_family) {
case AF_INET:
if (memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
if ((flags & ISC_SOCKADDR_CMPADDR) != 0 &&
memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
sizeof(a->type.sin.sin_addr)) != 0)
return (ISC_FALSE);
if (a->type.sin.sin_port != b->type.sin.sin_port)
if ((flags & ISC_SOCKADDR_CMPPORT) != 0 &&
a->type.sin.sin_port != b->type.sin.sin_port)
return (ISC_FALSE);
break;
case AF_INET6:
if (memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
if ((flags & ISC_SOCKADDR_CMPADDR) != 0 &&
memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
sizeof(a->type.sin6.sin6_addr)) != 0)
return (ISC_FALSE);
#ifdef ISC_PLATFORM_HAVESCOPEID
if (a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id)
/*
* If ISC_SOCKADDR_CMPSCOPEZERO is set then don't return
* ISC_FALSE if one of the scopes in zero.
*/
if ((flags & ISC_SOCKADDR_CMPSCOPE) != 0 &&
a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id &&
((flags & ISC_SOCKADDR_CMPSCOPEZERO) == 0 ||
(a->type.sin6.sin6_scope_id != 0 &&
b->type.sin6.sin6_scope_id != 0)))
return (ISC_FALSE);
#endif
if (a->type.sin6.sin6_port != b->type.sin6.sin6_port)
if ((flags & ISC_SOCKADDR_CMPPORT) != 0 &&
a->type.sin6.sin6_port != b->type.sin6.sin6_port)
return (ISC_FALSE);
break;
default:
@@ -71,37 +98,6 @@ isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
return (ISC_TRUE);
}
isc_boolean_t
isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
REQUIRE(a != NULL && b != NULL);
if (a->length != b->length)
return (ISC_FALSE);
if (a->type.sa.sa_family != b->type.sa.sa_family)
return (ISC_FALSE);
switch (a->type.sa.sa_family) {
case AF_INET:
if (memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
sizeof(a->type.sin.sin_addr)) != 0)
return (ISC_FALSE);
break;
case AF_INET6:
if (memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
sizeof(a->type.sin6.sin6_addr)) != 0)
return (ISC_FALSE);
#ifdef ISC_PLATFORM_HAVESCOPEID
if (a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id)
return (ISC_FALSE);
#endif
break;
default:
if (memcmp(&a->type, &b->type, a->length) != 0)
return (ISC_FALSE);
}
return (ISC_TRUE);
}
isc_boolean_t
isc_sockaddr_eqaddrprefix(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
unsigned int prefixlen)