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#include <sys/types.h>
#include <sysy/socket.h>
int socketpair( int domain , int type , int protocol , int sv[2] );
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#include <sys/socket.h>
struct sockaddr{
sa_family_t sa_family ; /* µØÖ·×å */
char sa_data[14] ; /* µØÖ·Êý¾Ý */
};
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