diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-10-26 08:34:38 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-10-26 08:34:38 +0000 |
| commit | 5ae19a502312bac2403f8aaaf743a9e9e6b1fdf2 (patch) | |
| tree | 1840b3f415fab01157e95fc22c69973f46a28bab /resolv/nss_dns/dns-host.c | |
| parent | 4d54786a9b982820570e616c1b5669d5b169fd00 (diff) | |
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/dns-host.c')
| -rw-r--r-- | resolv/nss_dns/dns-host.c | 15 |
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 |