in.h

实用的程序代码

/*
 * Internet related socket definitions
 */

#ifndef _IN_H
#define _IN_H


struct in_addr {
   unsigned int s_addr;
};


// structure for internet socket

#define SOCKET_SIZE   16       /* sizeof(struct sockaddr) */
struct sockaddr_in {
   unsigned short    sin_family; /* Address family */
   unsigned short    sin_port   ; /* Port number    */
   struct in_addr    sin_addr   ; /* Internet addr. */
   
   /* Pad to size of `struct sockaddr'. */
   unsigned char  pad[SOCKET_SIZE
                     - sizeof(unsigned short)
                     - sizeof(unsigned short)
                     - sizeof(struct in_addr)];
};


// Accept on any interface
#define INADDR_ANY        ((unsigned int) 0x00000000)

#endif	/* _IN_H */