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[IPV4] TCPMD5: Use memmove() instead of memcpy() because we have overlaps. 

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2007-11-20 17:30:31 -08:00 committed by David S. Miller
parent a80cc20da4
commit 354faf0977
1 changed files with 4 additions and 4 deletions
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8
net/ipv4/tcp_ipv4.c
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@ -938,10 +938,10 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
tp->md5sig_info->alloced4 = 0; tp->md5sig_info->alloced4 = 0;
} else if (tp->md5sig_info->entries4 != i) { } else if (tp->md5sig_info->entries4 != i) {
/* Need to do some manipulation */ /* Need to do some manipulation */
memcpy(&tp->md5sig_info->keys4[i], memmove(&tp->md5sig_info->keys4[i],
&tp->md5sig_info->keys4[i+1], &tp->md5sig_info->keys4[i+1],
(tp->md5sig_info->entries4 - i) * (tp->md5sig_info->entries4 - i) *
sizeof(struct tcp4_md5sig_key)); sizeof(struct tcp4_md5sig_key));
} }
tcp_free_md5sig_pool(); tcp_free_md5sig_pool();
return 0; return 0;