/* 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
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;