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* resolv/mapv4v6addr.h (map_v4v6_address): Optimize a bit.

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This commit is contained in:
Ulrich Drepper 2006-11-21 00:33:33 +00:00
parent 852d657c22
commit dfc99a5651
2 changed files with 8 additions and 6 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2006-11-20 Ulrich Drepper <drepper@redhat.com>
* resolv/mapv4v6addr.h (map_v4v6_address): Optimize a bit.
2006-11-18 Bruno Haible <bruno@clisp.org>
* sysdeps/unix/sysv/linux/i386/getgroups.c (__getgroups): Invoke

10
resolv/mapv4v6addr.h
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@ -56,16 +56,14 @@ static void
map_v4v6_address (const char *src, char *dst)
{
u_char *p = (u_char *) dst;
char tmp[INADDRSZ];
int i;
/* Stash a temporary copy so our caller can update in place. */
memcpy (tmp, src, INADDRSZ);
/* Move the IPv4 part to the right position. */
memcpy (src + 12, src, INADDRSZ);
/* Mark this ipv6 addr as a mapped ipv4. */
for (i = 0; i < 10; i++)
*p++ = 0x00;
*p++ = 0xff;
*p++ = 0xff;
/* Retrieve the saved copy and we're done. */
memcpy ((void *) p, tmp, INADDRSZ);
*p = 0xff;
}