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inet_ntop(3)
NAME
inet_ntop - Converts a numeric address to a text string
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <arpa/inet.h>
const char *inet_ntop (
int af,
const void *src,
char *dst,
size_t size) ;
PARAMETERS
af Specifies the address family. Valid values are AF_INET for an Internet
Protocol Version 4 (IPv4) address and AF_INET6 for an IPv6 address.
src Points to a buffer that contains the numeric Internet address.
dst Points to a buffer that is to contain the text string.
size
Specifies the size of the buffer pointed to by the dst parameter. For
Internet Protocol Version 4 (IPv4) addresses, the minimum buffer size
is 16 octets. For IPv6 addresses, the minimum buffer size is 46 octets.
The <netinet/in.h file defines the INET_ADDRSTRLEN and INET6_ADDRSTRLEN
constants, respectively, for for these values.
DESCRIPTION
The inet_ntop() function converts a numeric Internet address value to a
text string.
RETURN VALUES
Upon successful conversion, the inet_ntop() function returns a pointer to
the buffer containing the text string. If the function fails, it returns a
pointer to the buffer containing NULL.
ERRORS
If the inet_ntop() routine call fails, errno is set to one of the following
values:
[EAFNOSUPPORT]
The address family specified in af parameter is invalid.
[ENOSPC] The size of the buffer is inadequate.
RELATED INFORMATION
Functions: inet_pton(3).
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