static void recv4() {
int len;
int interface;
mh.msg_name=&sa4;
mh.msg_namelen=sizeof(sa4);
if ((len=recvmsg(s4,&mh,0))==-1) {
perror("recvmsg");
exit(3);
}
peer=(struct sockaddr*)&sa4;
sl=sizeof(sa4);
interface=v4if();
getip(interface);
handle(s4,buf,len,interface);
}
static void recv4(int s) {
int len;
mh.msg_name=&sa4;
mh.msg_namelen=sizeof(sa4);
if ((len=recvmsg(s,&mh,0))==-1) {
perror("recvmsg");
exit(3);
}
peer=(struct sockaddr*)&sa4;
sl=sizeof(sa4);
#ifdef DEBUG
printf("v4: ");
#endif
handle(s,buf,len,v4if(),s==ls4);
}
static void recv6(int s) {
int len,interface;
#ifdef DEBUG
char addrbuf[INET6_ADDRSTRLEN];
char ifbuf[IFNAMSIZ];
#endif
mh.msg_name=&sa6;
mh.msg_namelen=sizeof(sa6);
#if 0
mh.msg_control=abuf;
mh.msg_controllen=sizeof(abuf);
#endif
if ((len=recvmsg(s,&mh,0))==-1) {
perror("recvmsg");
exit(3);
}
peer=(struct sockaddr*)&sa6;
sl=sizeof(sa6);
if (IN6_IS_ADDR_V4MAPPED(sa6.sin6_addr.s6_addr32)) {
interface=v4if();
#ifdef DEBUG
inet_ntop(AF_INET,(char*)(sa6.sin6_addr.s6_addr)+12,addrbuf,sizeof addrbuf);
if_indextoname(interface,ifbuf);
printf("v4: %s: ",ifbuf);
#endif
} else {
interface=sa6.sin6_scope_id;
#ifdef DEBUG
inet_ntop(AF_INET6,sa6.sin6_addr.s6_addr,addrbuf,sizeof addrbuf);
if_indextoname(interface,ifbuf);
printf("v6: %s: ",ifbuf);
#endif
}
handle(s,buf,len,interface,s==ls6);
#ifdef DEBUG
printf(" from %s\n",addrbuf);
#endif
}
static void recv6() {
int len,interface;
mh.msg_name=&sa6;
mh.msg_namelen=sizeof(sa6);
if ((len=recvmsg(s6,&mh,0))==-1) {
perror("recvmsg");
exit(3);
}
peer=(struct sockaddr*)&sa6;
sl=sizeof(sa6);
if (IN6_IS_ADDR_V4MAPPED(sa6.sin6_addr.s6_addr))
interface=v4if();
else
interface=sa6.sin6_scope_id;
getip(interface);
handle(s6,buf,len,interface);
}
