diff options
Diffstat (limited to 'lib/libc/net/map_v4v6.c')
| -rw-r--r-- | lib/libc/net/map_v4v6.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/lib/libc/net/map_v4v6.c b/lib/libc/net/map_v4v6.c index dbc7e70..871cfda 100644 --- a/lib/libc/net/map_v4v6.c +++ b/lib/libc/net/map_v4v6.c @@ -77,19 +77,11 @@ typedef union { void _map_v4v6_address(const char *src, char *dst) { - u_char *p = (u_char *)dst; - char tmp[NS_INADDRSZ]; - int i; - - /* Stash a temporary copy so our caller can update in place. */ - memcpy(tmp, src, NS_INADDRSZ); + /* Our caller may update in place. */ + memmove(&dst[12], src, NS_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, NS_INADDRSZ); + memset(&dst[10], 0xff, 2); + memset(&dst[0], 0, 10); } void |
