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#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "byte.h"
#include "socket.h"
int socket_local4(int s,char ip[4],uint16 *port)
struct sockaddr_in si;
unsigned int len = sizeof si;
if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return -1;
*(uint32*)ip = *(uint32*)&si.sin_addr;
uint16_unpack_big((char *) &si.sin_port,port);
return 0;