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#include <sys/param.h>
#include "sockaddr_in6.h"
#include "byte.h"
#include "socket.h"
#include "ip6.h"
#include "haveip6.h"
#include "error.h"
int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint32 *scope_id)
{
#ifdef LIBC_HAS_IP6
struct sockaddr_in6 sa;
#else
struct sockaddr_in sa;
#endif
unsigned int dummy = sizeof sa;
int r;
byte_zero(&sa,dummy);
r = recvfrom(s,buf,len,0,(struct sockaddr *) &sa,&dummy);
if (r == -1) return -1;
#ifdef LIBC_HAS_IP6
if (noipv6 || sa.sin6_family==AF_INET || sa.sin6_family==PF_INET) {
struct sockaddr_in *sa4=(struct sockaddr_in *)&sa;
byte_copy(ip,12,V4mappedprefix);
byte_copy(ip+12,4,(char *) &sa4->sin_addr);
uint16_unpack_big((char *) &sa4->sin_port,port);
return r;
}
byte_copy(ip,16,(char *) &sa.sin6_addr);
uint16_unpack_big((char *) &sa.sin6_port,port);
if (scope_id) *scope_id=sa.sin6_scope_id;
#else
byte_copy(ip,12,(char *)V4mappedprefix);
byte_copy(ip+12,4,(char *) &sa.sin_addr);
uint16_unpack_big((char *) &sa.sin_port,port);
if (scope_id) *scope_id=0;
#endif
return r;
}
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