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inet_ntop(3) Linux Programmer's Manual inet_ntop(3)
inet_ntop - Parse network address structures
const char *inet_ntop(int af, const void *src,
char *dst, size_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:
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.
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.
AF_INET6 converts IPv6-mapped IPv4 addresses into an IPv6 format.
Linux Man Page 2000-12-18 inet_ntop(3)
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