inet_pton.h

原来由英特尔制定的UPnP SDK的

#ifdef WIN32
#ifndef INET_PTON
#define INET_PTON

#include <winsock2.h>

#include <errno.h>
#include <stdio.h>
#include <string.h>
typedef int socklen_t;
#define EAFNOSUPPORT 97

/*
 * WARNING: Don't even consider trying to compile this on a system where
 * sizeof(int) < 4.  sizeof(int) 4 is fine; all the world's not a VAX.
 */

/* const char *
 * inet_ntop4(src, dst, size)
 *	format an IPv4 address
 * return:
 *	`dst' (as a const)
 * notes:
 *	(1) uses no statics
 *	(2) takes a u_char* not an in_addr as input
 * author:
 *	Paul Vixie, 1996.
 */
extern const char * inet_ntop4(const u_char src, char *dst, socklen_t size);

/* const char *
 * inet_ntop6(src, dst, size)
 *	convert IPv6 binary address into presentation (printable) format
 * author:
 *	Paul Vixie, 1996.
 */

#ifdef INET_IPV6

extern const char * inet_ntop6(src, dst, size);

#endif /* INET_IPV6 */

/* int
 * inet_pton4(src, dst)
 *	like inet_aton() but without all the hexadecimal and shorthand.
 * return:
 *	1 if `src' is a valid dotted quad, else 0.
 * notice:
 *	does not touch `dst' unless it's returning 1.
 * author:
 *	Paul Vixie, 1996.
 */
extern inet_pton4(const char *src,u_char *dst);

/* int
 * inet_pton6(src, dst)
 *	convert presentation level address to network order binary form.
 * return:
 *	1 if `src' is a valid [RFC1884 2.2] address, else 0.
 * notice:
 *	(1) does not touch `dst' unless it's returning 1.
 *	(2) :: in a full address is silently ignored.
 * credit:
 *	inspired by Mark Andrews.
 * author:
 *	Paul Vixie, 1996.
 */

#ifdef INET_IPV6

extern int inet_pton6(src, dst);

#endif /* INET_IPV6 */



/* char *
 * inet_ntop(af, src, dst, size)
 *	convert a network format address to presentation format.
 * return:
 *	pointer to presentation format address (`dst'), or NULL (see errno).
 * author:
 *	Paul Vixie, 1996.
 */
extern const char *inet_ntop(int af,const void *src,char *dst,socklen_t size);


/* int
 * inet_pton(af, src, dst)
 *	convert from presentation format (which usually means ASCII printable)
 *	to network format (which is usually some kind of binary format).
 * return:
 *	1 if the address was valid for the specified address family
 *	0 if the address wasn't valid (`dst' is untouched in this case)
 *	-1 if some other error occurred (`dst' is untouched in this case, too)
 * author:
 *	Paul Vixie, 1996.
 */
extern int inet_pton(int af,const char *src,void *dst);

#endif
#endif