jimzah/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src.git synced 2024-12-04 10:19:26 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Replace bzero() of struct ip with explicit zeroing of structure members,

Browse Source 
which is faster.
This commit is contained in:
Jonathan Lemon 2001-06-23 17:44:27 +00:00
parent f00f162a5f
commit f962cba5c3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=78671
2 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/netinet/tcp_subr.c
View File

@ -250,8 +250,13 @@ tcp_fillheaders(tp, ip_ptr, tcp_ptr)
{
struct ip *ip = (struct ip *) ip_ptr;
bzero(ip, sizeof(struct ip)); /* XXX overkill? */
ip->ip_vhl = IP_VHL_BORING;
ip->ip_tos = 0;
ip->ip_len = 0;
ip->ip_id = 0;
ip->ip_off = 0;
ip->ip_ttl = 0;
ip->ip_sum = 0;
ip->ip_p = IPPROTO_TCP;
ip->ip_src = inp->inp_laddr;
ip->ip_dst = inp->inp_faddr;
@ -1372,7 +1377,6 @@ ipsec_hdrsiz_tcp(tp)
th = (struct tcphdr *)(ip + 1);
m->m_pkthdr.len = m->m_len = sizeof(struct tcpiphdr);
tcp_fillheaders(tp, ip, th);
ip->ip_vhl = IP_VHL_BORING;
hdrsiz = ipsec4_hdrsiz(m, IPSEC_DIR_OUTBOUND, inp);
}

8
sys/netinet/tcp_timewait.c
View File

@ -250,8 +250,13 @@ tcp_fillheaders(tp, ip_ptr, tcp_ptr)
{
struct ip *ip = (struct ip *) ip_ptr;
bzero(ip, sizeof(struct ip)); /* XXX overkill? */
ip->ip_vhl = IP_VHL_BORING;
ip->ip_tos = 0;
ip->ip_len = 0;
ip->ip_id = 0;
ip->ip_off = 0;
ip->ip_ttl = 0;
ip->ip_sum = 0;
ip->ip_p = IPPROTO_TCP;
ip->ip_src = inp->inp_laddr;
ip->ip_dst = inp->inp_faddr;
@ -1372,7 +1377,6 @@ ipsec_hdrsiz_tcp(tp)
th = (struct tcphdr *)(ip + 1);
m->m_pkthdr.len = m->m_len = sizeof(struct tcpiphdr);
tcp_fillheaders(tp, ip, th);
ip->ip_vhl = IP_VHL_BORING;
hdrsiz = ipsec4_hdrsiz(m, IPSEC_DIR_OUTBOUND, inp);
}