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Fix convSockAddr6to4(): eliminate bogus assumptions about byte ordering,

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remove useless SockAddr_ntop() call.  Per report from Andreas Pflug.
This commit is contained in:
Tom Lane 2003-04-02 20:00:21 +00:00
parent d6f1aa9760
commit 794162bb1a
1 changed files with 6 additions and 11 deletions
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17
src/backend/libpq/ip.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/ip.c,v 1.4 2003/04/02 00:49:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/ip.c,v 1.5 2003/04/02 20:00:21 tgl Exp $
*
* This file and the IPV6 implementation were initially provided by
* Nigel Kukard <nkukard@lbsd.net>, Linux Based Systems Design
@ -328,18 +328,13 @@ rangeSockAddrAF_INET6(const SockAddr *addr, const SockAddr *netaddr,
static void
convSockAddr6to4(const SockAddr *src, SockAddr *dst)
{
char addr_str[INET6_ADDRSTRLEN];
MemSet(dst, 0, sizeof(*dst));
dst->in.sin_family = AF_INET;
/* both src and dst are assumed to be in network byte order */
dst->in.sin_port = src->in6.sin6_port;
dst->in.sin_addr.s_addr =
(src->in6.sin6_addr.s6_addr[15])
+ (src->in6.sin6_addr.s6_addr[14] << 8)
+ (src->in6.sin6_addr.s6_addr[13] << 16)
+ (src->in6.sin6_addr.s6_addr[12] << 24);
SockAddr_ntop(src, addr_str, INET6_ADDRSTRLEN, 0);
memcpy(&dst->in.sin_addr.s_addr,
((char *) (&src->in6.sin6_addr.s6_addr)) + 12,
sizeof(struct in_addr));
}
#endif /* HAVE_IPV6 */