Originální popis anglicky:
inet_ntop - Parse network address structures
Návod, kniha: Linux Programmer's Manual
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
const char *inet_ntop(int af, const void *src,
char *dst, socklen_t cnt);
This function converts the network address structure
src in the
af
address family into a character string, which is copied to a character buffer
dst, which is
cnt bytes long.
inet_ntop(3) extends the
inet_ntoa(3) function to support multiple
address families,
inet_ntoa(3) is now considered to be deprecated in
favor of
inet_ntop(3). The following address families are currently
supported:
- AF_INET
- src points to a struct in_addr (network byte
order format) which is converted to an IPv4 network address in the
dotted-quad format, " ddd.ddd.ddd.ddd". The buffer
dst must be at least INET_ADDRSTRLEN bytes long.
- AF_INET6
- src points to a struct in6_addr (network byte
order format) which is converted to a representation of this address in
the most appropriate IPv6 network address format for this address. The
buffer dst must be at least INET6_ADDRSTRLEN bytes
long.
inet_ntop returns a non-null pointer to
dst. NULL is returned if
there was an error, with
errno set to
EAFNOSUPPORT if
af
was not set to a valid address family, or to
ENOSPC if the converted
address string would exceed the size of
dst given by the
cnt
argument.
POSIX 1003.1-2001. Note that RFC 2553 defines a prototype where the last
parameter
cnt is of type
size_t. Many systems follow RFC 2553.
Glibc 2.0 and 2.1 have size_t, but 2.2 has socklen_t.
inet_pton(3)
AF_INET6 converts IPv6-mapped IPv4 addresses into an IPv6 format.
