diff options
Diffstat (limited to 'slirp/socket.c')
| -rw-r--r-- | slirp/socket.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/slirp/socket.c b/slirp/socket.c index d1034fb536..8f73e906e2 100644 --- a/slirp/socket.c +++ b/slirp/socket.c @@ -16,23 +16,34 @@ static void sofcantrcvmore(struct socket *so); static void sofcantsendmore(struct socket *so); struct socket * -solookup(struct socket *head, struct in_addr laddr, u_int lport, +solookup(struct socket **last, struct socket *head, + struct in_addr laddr, u_int lport, struct in_addr faddr, u_int fport) { - struct socket *so; - - for (so = head->so_next; so != head; so = so->so_next) { - if (so->so_lport == lport && - so->so_laddr.s_addr == laddr.s_addr && - so->so_faddr.s_addr == faddr.s_addr && - so->so_fport == fport) - break; - } + struct socket *so = *last; + + /* Optimisation */ + if (so != head && + so->so_lport == lport && + so->so_laddr.s_addr == laddr.s_addr && + (!faddr.s_addr || + (so->so_faddr.s_addr == faddr.s_addr && + so->so_fport == fport))) { + return so; + } - if (so == head) - return (struct socket *)NULL; - return so; + for (so = head->so_next; so != head; so = so->so_next) { + if (so->so_lport == lport && + so->so_laddr.s_addr == laddr.s_addr && + (!faddr.s_addr || + (so->so_faddr.s_addr == faddr.s_addr && + so->so_fport == fport))) { + *last = so; + return so; + } + } + return (struct socket *)NULL; } /* |