结构

#define UNIX_PATH_MAX 108
struct sockaddr_un
{
    sa_family_t sun_family;
    char        sun_path[UNIX_PATH_MAX];//unix域套接字的文件路径名（在文件中）
                                        //必须事先不存在，一般给绝对路径
}

•本地地址结构

structsockaddr_un        // <sys/un.h>
{
    sa_family_t sun_family;
    char  sun_path[108];         // 套接字文件的路径名
};

•填充地址结构

structsockaddr_un myaddr;
bzero(&myaddr, sizeof(myaddr));
myaddr.sun_family = AF_UNIX; 
strcpy(myaddr.sun_path, “/tmp/mysocket”);