diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | resolv/mapv4v6addr.h | 10 |
2 files changed, 8 insertions, 6 deletions
@@ -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 diff --git a/resolv/mapv4v6addr.h b/resolv/mapv4v6addr.h index bc3290f..a71a6cc 100644 --- a/resolv/mapv4v6addr.h +++ b/resolv/mapv4v6addr.h @@ -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; } |