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NAME
inet_aton, inet_addr, inet_ntoa - Internet address
manipulation routines
SYNOPSIS
#include <network.h>
int inet_aton(const char *cp, struct in_addr *inp);
unsigned long int inet_addr(const char *cp);
char *inet_ntoa(struct in_addr in);
DESCRIPTION
inet_aton() converts the Internet host address cp from the
standard numbers-and-dots notation into binary data and
stores it in the structure that inp points to. inet_aton
returns nonzero if the address is valid, zero if not.
The inet_addr() function converts the Internet host
address cp from numbers-and-dots notation into binary data
in network byte order. If the input is invalid,
INADDR_NONE (usually -1) is returned. This is an obsolete
interface to inet_aton, described immediately above; it is
obsolete because -1 is a valid address (255.255.255.255),
and inet_aton provides a cleaner way to indicate error
return.
The inet_ntoa() function converts the Internet host
address in given in network byte order to a string in
standard numbers-and-dots notation. The string is
returned in a statically allocated buffer, which subse
quent calls will overwrite.
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