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| author | Ulrich Drepper <drepper@redhat.com> | 2006-11-21 00:33:33 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-11-21 00:33:33 +0000 |
| commit | dfc99a56514db15abe8e00aface9cd2be831f447 (patch) | |
| tree | 415c1514f15c0300743c174dd076988f0ec7b87c /resolv/mapv4v6addr.h | |
| parent | 852d657c229b33d7aa2d0a0509459b73e17eacbe (diff) | |
| download | glibc-dfc99a56514db15abe8e00aface9cd2be831f447.tar.gz glibc-dfc99a56514db15abe8e00aface9cd2be831f447.tar.xz glibc-dfc99a56514db15abe8e00aface9cd2be831f447.zip | |
* resolv/mapv4v6addr.h (map_v4v6_address): Optimize a bit.
Diffstat (limited to 'resolv/mapv4v6addr.h')
| -rw-r--r-- | resolv/mapv4v6addr.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/resolv/mapv4v6addr.h b/resolv/mapv4v6addr.h index bc3290f162..a71a6cc1a7 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; } |