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authorUlrich Drepper <drepper@redhat.com>2003-10-26 08:34:38 +0000
committerUlrich Drepper <drepper@redhat.com>2003-10-26 08:34:38 +0000
commit5ae19a502312bac2403f8aaaf743a9e9e6b1fdf2 (patch)
tree1840b3f415fab01157e95fc22c69973f46a28bab /resolv/nss_dns
parent4d54786a9b982820570e616c1b5669d5b169fd00 (diff)
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Update.
2003-10-26 Ulrich Drepper <drepper@redhat.com> * resolv/nss_dns/dns-host.c (_nss_dns_gethostbyaddr_r): Default reverse lookup format for IPv6 addresses is using bitfields and .ip6.arpa suffix. * resolv/ns_name.c: Implement encoding and decoding bitfields in hex format.
Diffstat (limited to 'resolv/nss_dns')
-rw-r--r--resolv/nss_dns/dns-host.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index f362dd746d..bde45ca873 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2000, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -305,10 +305,14 @@ _nss_dns_gethostbyaddr_r (const void *addr, socklen_t len, int af,
(uaddr[2] & 0xff), (uaddr[1] & 0xff), (uaddr[0] & 0xff));
break;
case AF_INET6:
+ /* XXX Maybe we need an option to select whether to use the nibble
+ or the bitfield form. The RFC requires the bitfield form so
+ we use it. */
qp = qbuf;
- for (n = IN6ADDRSZ - 1; n >= 0; n--)
- qp += sprintf (qp, "%x.%x.", uaddr[n] & 0xf, (uaddr[n] >> 4) & 0xf);
- strcpy (qp, "ip6.arpa");
+ qp = stpcpy (qbuf, "\\[x");
+ for (n = 0; n < IN6ADDRSZ; ++n)
+ qp += sprintf (qp, "%02hhx", uaddr[n]);
+ strcpy (qp, "].ip6.arpa");
break;
default:
/* Cannot happen. */
@@ -321,6 +325,9 @@ _nss_dns_gethostbyaddr_r (const void *addr, socklen_t len, int af,
1024, &host_buffer.ptr);
if (n < 0 && af == AF_INET6)
{
+ qp = qbuf;
+ for (n = IN6ADDRSZ - 1; n >= 0; n--)
+ qp += sprintf (qp, "%x.%x.", uaddr[n] & 0xf, (uaddr[n] >> 4) & 0xf);
strcpy (qp, "ip6.int");
n = __libc_res_nquery (&_res, qbuf, C_IN, T_PTR, host_buffer.buf->buf,
host_buffer.buf != orig_host_buffer