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| author | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
| commit | 32c075e1f01849e161724bbd400ba77244e482cc (patch) | |
| tree | 5f083a3f352104f32bb6c902d57fa3f294bd8d4d /resolv/mapv4v6addr.h | |
| parent | d6220e9ee38c1c9285221b023346201ec5f511b3 (diff) | |
| download | glibc-32c075e1f01849e161724bbd400ba77244e482cc.zip glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.gz glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.bz2 | |
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Diffstat (limited to 'resolv/mapv4v6addr.h')
| -rw-r--r-- | resolv/mapv4v6addr.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/resolv/mapv4v6addr.h b/resolv/mapv4v6addr.h index 7f85f7d..bc3290f 100644 --- a/resolv/mapv4v6addr.h +++ b/resolv/mapv4v6addr.h @@ -56,14 +56,16 @@ static void map_v4v6_address (const char *src, char *dst) { u_char *p = (u_char *) dst; + char tmp[INADDRSZ]; int i; - /* Move the IPv4 part to the right position. */ - memcpy (dst + 12, src, INADDRSZ); - + /* Stash a temporary copy so our caller can update in place. */ + memcpy (tmp, src, INADDRSZ); /* Mark this ipv6 addr as a mapped ipv4. */ for (i = 0; i < 10; i++) *p++ = 0x00; *p++ = 0xff; - *p = 0xff; + *p++ = 0xff; + /* Retrieve the saved copy and we're done. */ + memcpy ((void *) p, tmp, INADDRSZ); } |