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authorUlrich Drepper <drepper@redhat.com>2006-11-20 03:26:35 +0000
committerUlrich Drepper <drepper@redhat.com>2006-11-20 03:26:35 +0000
commit36c0a6366543ab894aea9d47410a5c40b44c440e (patch)
tree1fcfd1e139b54871b3a7361c29ce13d33f1aa56d
parentb1f0c2a609126c231cbcfb639a02cff286341ade (diff)
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* nss/nss_files/files-hosts.c (LINE_PARSER): Support IPv6-stylecvs/fedora-glibc-20061120T1000
addresses for IPv4 queries if they can be mapped.
-rw-r--r--ChangeLog5
-rw-r--r--nss/nss_files/files-hosts.c34
2 files changed, 30 insertions, 9 deletions
diff --git a/ChangeLog b/ChangeLog
index e4fc084..f8f3230 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-11-19 Ulrich Drepper <drepper@redhat.com>
+
+ * nss/nss_files/files-hosts.c (LINE_PARSER): Support IPv6-style
+ addresses for IPv4 queries if they can be mapped.
+
2006-11-16 Jakub Jelinek <jakub@redhat.com>
* sysdeps/x86_64/fpu/s_copysignf.S (__copysignf): Switch to .text.
diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
index 8d1a8ee..6daafde 100644
--- a/nss/nss_files/files-hosts.c
+++ b/nss/nss_files/files-hosts.c
@@ -1,5 +1,5 @@
/* Hosts file parser in nss_files module.
- Copyright (C) 1996-2001, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2003, 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -55,14 +55,30 @@ LINE_PARSER
STRING_FIELD (addr, isspace, 1);
/* Parse address. */
- if (inet_pton (af, addr, entdata->host_addr) <= 0
- && (af != AF_INET6 || (flags & AI_V4MAPPED) == 0
- || inet_pton (AF_INET, addr, entdata->host_addr) <= 0
- || (map_v4v6_address ((char *) entdata->host_addr,
- (char *) entdata->host_addr),
- 0)))
- /* Illegal address: ignore line. */
- return 0;
+ if (inet_pton (af, addr, entdata->host_addr) <= 0)
+ {
+ if (af == AF_INET6 && (flags & AI_V4MAPPED) != 0
+ && inet_pton (AF_INET, addr, entdata->host_addr) > 0)
+ map_v4v6_address ((char *) entdata->host_addr,
+ (char *) entdata->host_addr);
+ else if (af == AF_INET
+ && inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
+ {
+ if (IN6_IS_ADDR_V4MAPPED (entdata->host_addr))
+ memcpy (entdata->host_addr, entdata->host_addr + 12, INADDRSZ);
+ else if (IN6_IS_ADDR_LOOPBACK (entdata->host_addr))
+ {
+ in_addr_t localhost = htonl (INADDR_LOOPBACK);
+ memcpy (entdata->host_addr, &localhost, sizeof (localhost));
+ }
+ else
+ /* Illegal address: ignore line. */
+ return 0;
+ }
+ else
+ /* Illegal address: ignore line. */
+ return 0;
+ }
/* We always return entries of the requested form. */
result->h_addrtype = af;